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MR. KOBELCO
10-19-2010, 09:06 PM
1) are you having trouble searching for new o.e.m., remanufactured, reconditioned, or new aftermarket replacement parts?
2) is your machine acting up and not running the way it should?
3) do you require help pin-pointing the root cause of the problem?
4) do you have any unanswered questions?
5) are you looking for manuals specific to your model and by serial number?

please post your topics here. i will do my best to help out.
as i am also sure and gladly invite the other experienced kobelco mechanics on this forum to ring in with advice as well!

thank-you!
:)

MR. KOBELCO
10-19-2010, 09:16 PM
please do not forget to include your model along with the serial number of your machine in the post.
also, in regards to the engine, the make, model type and serial number helps.

cheers!

thebaz
10-20-2010, 04:53 AM
907MKII ser YN-04087
Started her up today in preparation for tomorrow. Has been sitting for a bit with the bad weather. Hasn't worked a solid day for around a month, but started about once a week to keep everything ready to work.
Batteries are a little over 6 years old, but have been fine up till today when she seemed a little sluggish turning over and when she started the CPU light was on. I am assuming that the CPU was not working at all as the return to idle button did nothing. Let it run for a few minutes, shut off and restarted, no CPU light and everything functioning normally again, digging modes, 2speed track modes, return to idle and wipers all fine. Could this just be a CPU glitch due to the batteries failing? You opinion would be valued.
Baz

thebaz
10-20-2010, 04:55 AM
BTW,
Thanks for the generous offer of help for us Kobelco owners.

MR. KOBELCO
10-20-2010, 06:00 AM
hi Baz,
i do believe you are right on the money with that one. the cpu light is an indication of a problem that has occurred in the cpu or with the main power feeds or grounds.
with your machine and many of the kobelco's (likely all) the computers like to see 18+V with ignition switch on.
your C-1 controller cpu is mounted to the back of the r/h console.
it has a lid that hinges open and led lights that are used to help indicate a problem with the machine horsepower controls or the cpu itself.
my suggestion is your batteries are due to be replaced.
(remember when checking fluid levels on machines - that does include the batteries as well. top up each cell to level with distilled water only.)
be sure to also clean up the battery cable ends too.
i do believe the batteries are N120's.
if not 4D-1000's.
once you get started and at wot (full throttle) check the charging.
should be 27 - 28 VDC.
then, ign switch on " ON " e/g off, flip open the computer lid.
if the PCB is working proper and operational you should here a very faint kind of high pitched hissing.
if not, i have repaired them myself in the past. or we do stock new.
off to work now.
cheers!

thebaz
10-20-2010, 06:31 AM
Thanks,
I will check that tomorrow

DirtHauler
10-20-2010, 06:32 AM
Know much about the Kobelco SS? what markets were they sold in and are they still being produced?

Hendrik
10-20-2010, 06:20 PM
Know much about the Kobelco SS? what markets were they sold in and are they still being produced?
The SS was only marketed in Japan and is no longer in production, the smallest they make is the SK005 (and the 2nd and 3rd generation of those do not have expanding tracks:mad: ).
http://www.kobelco-kenki.co.jp/products/shovel/index.html#a

MR. KOBELCO
10-20-2010, 09:00 PM
click on the link supplied below for accessing Kobelco's online parts catalog (OPC)
parts catalog is for machines setup for the North America market.

https://webparts.pvassociates.net/cnh/webparts/main.php

note;
in your web browser you may have to add this page to the compatibilty view settings

motrack
10-20-2010, 11:11 PM
We had one of there in our showroom for years. It arrived in the early 90s shortly after we became a Kobelco dealer. It was fun to play with but has no real use other than a advertising gimmick.

MR. KOBELCO
10-23-2010, 05:03 PM
my contact information.

Adam Fairchild, C.F.P.S. ( Certified Fluid Power Specialist )
Hydraulic Specialist
Parts & Service Manager
Robert Green Equipment Sales Ltd.
41 Cardico Drive, P.O. Box 128
Gormley, Ontario
Canada L0H 1G0
ph: (905) 888-9070
fax: (905) 888-9013
mobile: (416) 896-2442
home: (905) 697-9626
personal e-mail: hf_hydraulics@hotmail.com
e-mail: rgeservicenparts@robertgreenequipment.com
ROBERT GREEN EQUIPMENT SALES LTD.
http://www.robertgreenequipment.com
KOBELCO
http://www.kobelcoamerica.com/Pages/homepage.aspx
KOBELCO & MDI/YUTANI CUSTOMER ONLINE PARTS CATALOG (OPC)
CNH/KOBELCO original parts
https://webparts.pvassociates.net/cnh/webparts/main.php
HULTDINS
http://www.hultdins.com/
INDEXATOR ROTOTILT
http://www.indexatornorthamerica.com/

ben46a
10-23-2010, 05:21 PM
So SK350, last years model, dont have SN handy, When you top the boom cyls out and put it over relief the stick comes in, when you top the stick cyl out, the boom goes up? Ive pretty much got it narrowed to the control valve just not sure if i should relace half of it or all of it. Bypassed the pattern changer to eliminat that as well as swapped the line reliefs.

MR. KOBELCO
10-25-2010, 02:11 PM
hi ben46a,
regarding your Kobelco SK350LC-8,
you will require the following new replacement parts.
the ARM 2 spool supercedes, including a new lower spool cap and detent plug.
also the 2 unloading valves supercede part numbers and should also be replaced.
part numbers as follows along with the recommended ordering status.
1 -> LC30V00034R220, ARM 2 SPOOL, must order on a unit down
1 -> LC30V00034S979, SPOOL CAP, LWR, must order on a unit down
1 -> LC30V00034S981, SPOOL CAP, LWR, DETENT PLUG, must order on a unit down
2 -> YN30V00120F2, VALVE, UNLOADING, order on an air
1 -> ZD12P00800, o-ring, likely stocked
1 -> ZD12G04000, o-ring, likely stocked
1 -> ZD12G05000, o-ring, likely stocked

also, i recommend you check the cpu version in your machine computer.
the latest greatest version is 6.00
depress the buzzer stop switch on your monitor display and while holding turn the ignition switch to " ON " position. do NOT start the engine.
screen no. 1 should display and read the version.
depending on your version, if older you will require a kobelco dealer to download the newer version. if not, ship the computer to me and i can bench load the version.
afterwards, the machine will require setting up and this can be done over the phone.
ensuring that all the hyd sensors readouts are as they should, the engine rpm's within specs, as well as all the hyd pressures too.
this may involve un-tweaking some screen settings to do so.
then re-tweaking after.

if your machine has only the one HINO fuel filter,
there is an optional dual fuel filter assembly field install kit that is available for ordering.
an improved filtration system. i do highly recommend that you consider purchasing it. it will better your filtration of the fuel system and prevent possible problems down the road.
the price of this kit compared to the high costs involved if you were to run into problems in the fuel system is in my mind cheap insurance!
kit part# LC32T00017F1, can be ordered on a stock order
new replacement fuel filters used in the kit
- VH23390E0020, 2 um fuel filter
- LS21P01013R100, 7 um fuel filter
be sure to also have spares brought in on a stock order as well.

Sripola
10-26-2010, 08:40 AM
Hi Mr. Kobelco,

Thank you for posting this thread. I have a quick question for you regarding the undercarriage for a Kobelco SK130-4. Do you know if the track chains and sprockets from a Kobelco SK120-3 are compatible with a SK130-4?

The reason i ask is that the online parts catalogue gives slightly different numbers although the machines are alsmost identical except for the engines. I am about to buy some used chains for a 120-3 and wanted to make sure.

Thank you,
Imran

finaldrive
10-26-2010, 09:22 AM
They are interchangable, no problem.
The number of links could be different, but more than likely the are both 43 link.

9420pullpan
10-26-2010, 08:35 PM
we need to see some pics of some BladeRunners

Sripola
10-28-2010, 12:57 PM
Thanks for the tip finaldrive. WIll check it out

Sripola
10-31-2010, 12:16 AM
Thanks for the info Final Drive. Might go ahead and get the 120 parts then

Cheers!

ben46a
11-03-2010, 12:03 PM
hi ben46a,
regarding your Kobelco SK350LC-8,
you will require the following new replacement parts.
the ARM 2 spool supercedes, including a new lower spool cap and detent plug.
also the 2 unloading valves supercede part numbers and should also be replaced.
part numbers as follows along with the recommended ordering status.
1 -> LC30V00034R220, ARM 2 SPOOL, must order on a unit down
1 -> LC30V00034S979, SPOOL CAP, LWR, must order on a unit down
1 -> LC30V00034S981, SPOOL CAP, LWR, DETENT PLUG, must order on a unit down
2 -> YN30V00120F2, VALVE, UNLOADING, order on an air
1 -> ZD12P00800, o-ring, likely stocked
1 -> ZD12G04000, o-ring, likely stocked
1 -> ZD12G05000, o-ring, likely stocked

also, i recommend you check the cpu version in your machine computer.
the latest greatest version is 6.00
depress the buzzer stop switch on your monitor display and while holding turn the ignition switch to " ON " position. do NOT start the engine.
screen no. 1 should display and read the version.
depending on your version, if older you will require a kobelco dealer to download the newer version. if not, ship the computer to me and i can bench load the version.
afterwards, the machine will require setting up and this can be done over the phone.
ensuring that all the hyd sensors readouts are as they should, the engine rpm's within specs, as well as all the hyd pressures too.
this may involve un-tweaking some screen settings to do so.
then re-tweaking after.

if your machine has only the one HINO fuel filter,
there is an optional dual fuel filter assembly field install kit that is available for ordering.
an improved filtration system. i do highly recommend that you consider purchasing it. it will better your filtration of the fuel system and prevent possible problems down the road.
the price of this kit compared to the high costs involved if you were to run into problems in the fuel system is in my mind cheap insurance!
kit part# LC32T00017F1, can be ordered on a stock order
new replacement fuel filters used in the kit
- VH23390E0020, 2 um fuel filter
- LS21P01013R100, 7 um fuel filter
be sure to also have spares brought in on a stock order as well.

Thank you sir, ill run it by the dealer here and see what they say. The tech line never mentioned anything like this. Was this the reason for the changup in the spool?

MR. KOBELCO
11-04-2010, 10:06 PM
this is a good link to kobelco's online parts catalogs

http://www.kobelcoamerica.com/partscatalog/Pages/partscatalog.aspx

eianewb
11-08-2010, 08:18 AM
been looking at some new buckets for my '98 sk130lc. are they the same as the buckets for the 120s? there are quite a few around, but they all say 120 or 150 on them, i assume one of these should work on my 130??

(the track question from the 120 to a 130 made me think :D )

thanks

MR. KOBELCO
11-09-2010, 05:49 PM
hi eianewb,
the sk120 buckets differ from the sk130 buckets.
i do believe they will pin on but the spread or distance between the centre to centre of the pins are not the same.
if you have a hyd pin grabber or such...it may not work for you.
you will also lose out on some bucket breakout forces.

picklehead
11-15-2010, 12:39 PM
I have a sk75ur that is having fuel problems. It seems as if the machine unprimes itself every time I shut it down. No visible fuel leaks. the fuel all seems to bleed back to the tank. I hope I am using this forum properly. This is my first time.

MR. KOBELCO
11-15-2010, 08:24 PM
hi picklehead,
it sounds as though you will need to replace your fuel lift pump and it would not hurt to also replace the fuel overflow (fuel control) valve.
also, be aware of those inline fuel screens.
if your engine is a Mitsubishi the input fuel hose attached by a fuel banjo bolt to the fuel lift pump will consist of a nylon mesh fuel screen screws into the bolt.
pinch line, remove bolt, unscrew screen and clean.
if damaged replace.
also, if the engine is an Isuzu there will be a second inline fuel screen located inside the bolt (same deal) affixing the fuel hose that leads from the fuel tank to the inlet port of the fuel water seperator filter head.
cheers!

rutwad
11-15-2010, 10:31 PM
Not sure if there's any problem or not, but SK290LC Dyn Ac. seems to take quite a while to warm up on 45 degree mornings. Scared to think how bad it might be in really cold weather!

picklehead
11-16-2010, 10:18 AM
THANKS!!!
It is a Isuzu. Where is a good place to buy a lift pump? I am going to fill the tank completely up with fuel, and I suspect gravity will push the fuel to the filter. That should confirm the lift pump failure. I will clean the screens first.


Thanks again Mr. Kobelco

MR. KOBELCO
11-16-2010, 09:39 PM
hi rutwad,
there are a few things that may contribute to this.
the auto-warmup is dependent upon certain conditions to function properly.
if you give me a call i can run over items to check.
please have your serial number at that time.
ser# LB0#-?U####
also, if at all possible call me when you are sitting in the cab.
we can view your maintenance screens too.
ph: 905-888-9070
be sure to ask for me. adam.
best to call me later in the week. thursday/friday

MR. KOBELCO
11-16-2010, 09:43 PM
hi picklehead,
you can purchase the fuel lift pump from us.
i will need all your fuel injection pump numbers record off the tag.
even numbers on the lift pump itself.
you might even be able to get from an authorised fuel inj pump overhaul shop.
i do stock these and will likely have it on our shelf.
e-mail numbers and your contact info to hf_hydraulics@hotmail.com

picklehead
11-17-2010, 09:45 AM
Thanks,
I will contact you next week if I need it. Can ya'll get body panels and lights?

MR. KOBELCO
11-17-2010, 08:31 PM
hi picklehead,
yes we can get all your parts needs. the body panels might be expensive new but there are other shopping avenues. such as H&R Construction parts.
i would suggest quoting on price and avail on new and H&R to explore all your options.
lights, no problem we stock them on our shelf.

finaldrive
11-17-2010, 09:29 PM
Thanks for the plug Adam. Have him call Bob, I'll steer him in the right direction.

MR. KOBELCO
11-17-2010, 09:52 PM
hi picklehead,
for your panels, try contacting;
H&R Construction Parts & Equipment Inc.
20 Milburn Street
Buffalo, NY, 14212
United States
BOB WITTMANN
ph: (800) 333-0650
ph: (716) 891-4311 Ext. 4138
bwittmann@hrparts.com
http://www.HRparts.com

cheers!

Colorado Digger
11-18-2010, 07:45 AM
i have heard good things about kobelco, would love to try a 210 sometime. i know they are fast. are they cummin's with kawi hydraulics?

picklehead
11-18-2010, 10:40 AM
I will be shopping soon. THANKS

MR. KOBELCO
11-27-2010, 03:43 PM
hi colorado digger,
if you can wait, mid to late next year...
the new kobelco Tier 4 sk210lc-10
FPT engine (fiat powertrain) and kawasaki hydraulics
is definitely worth it.
a customer and i went to the factory (Calhoun, Georgia) for a one day clinic to compare the 210 mark 8 with the new 210 mark 10.
my customer was literally blown away!
he has already voiced that he wants to be the first to purchase one as soon as it comes out.
the machine is fast, fluid, strong in every area, and the machine reads exactly what you tell it to do with the joysticks. there is no hesitation.
i have no doubt that you will be impressed too!

diamondsten
11-27-2010, 03:53 PM
i am having difficulty finding replacement proportionate valves for my sk250 excavator. can you refer me to a good aftermarket supplier?

MR. KOBELCO
11-27-2010, 04:04 PM
hi diamondsten,
curious...why think aftermarket?
you'll likely find you cannot source other than from a kobelco dealer.
if you provide me your information,
serial number LL08-U####, LL09-U####, LL10-U####...
and which proportional valve you are requiring i can quote you.
we have good stock on all used on the kobelcos and reasonable prices too.
we take payment by either visa or mastercard.
thanks.
Adam Fairchild, a.k.a. Mr. Kobelco
C.F.P.S. (Certified Fluid Power Specialist)
http://www.ifps.org/
Electro-Mechanical-Automation & Robotics Engineering Technician
Hydraulic & Pneumatic Engineering Technician
Parts & Service Manager
Robert Green Equipment Sales Ltd.
41 Cardico Drive, P.O. Box 128
Gormley, Ontario
Canada L0H 1G0
ph: (905) 888-9070
fax: (905) 888-9013
mobile: (416) 896-2442
Home mailing address:
56 Brooking Street
Bowmanville, Ontario
Canada L1C 5L5
home phone: (905) 697-9626
primary e-mail: hf_hydraulics@hotmail.com
Facebook Group: Kobelco Hydraulic Excavators Link;
http://www.facebook.com/home.php?#!/group.php?gid=126868410693215
Facebook Group: MDI/Yutani Hydraulic Excavators Link;
http://www.facebook.com/home.php?#!/group.php?gid=145542265470370
http://www.heavyequipmentforums.com/
secondary e-mail: rgeservicenparts@robertgreenequipment.com
ROBERT GREEN EQUIPMENT SALES LTD.
http://www.robertgreenequipment.com
KOBELCO
http://www.kobelcoamerica.com/Pages/homepage.aspx
KOBELCO & MDI/YUTANI CUSTOMER ONLINE PARTS CATALOG (OPC)
http://www.kobelcoamerica.com/partscatalog/Pages/partscatalog.aspx
HULTDINS
http://www.hultdins.com/
INDEXATOR ROTOTILT
http://www.indexatornorthamerica.com/

hitachi daft
11-27-2010, 04:20 PM
hi could you tell me how to calabrate the revs on a kobelco80msr it will not turn off with the key the lever on the injector pump goes to the stop position but for long enough to stop engine

diamondsten
11-27-2010, 05:01 PM
hi adam i need the to speed prop valve and the sing brake prop vavle and thank u very much for yor reply

diamondsten
11-27-2010, 05:07 PM
the kobelco i have is a 03 sk250 dynamic acera ssn llo8o1o1 the monitor is showing the swing brake and the two speed travel valves are not working

K909
11-30-2010, 08:22 PM
Hi Adam,

I have a pretty rough farm machine that is in need of a new main pump...(pcs scattered everywhere..:eek:)

It is a K909 LCII, serial # LLU0117 It has the Mitsubishi engine.

I have 2 questions...

1) Where could I find a reasonably priced replacement pump?

2) Are there other pumps (by part number) that will interchange with this?
I have found a Kobelco main pump on ebay, but it is off of a SK200LC II with part # 2437U389F3


If it matters...none of the electronics..H/M/L speeds etc work on this machine. We just need it to pump fluids to do work around a farm.

Thanks :thumbsup

Sam K
Arkansas

MR. KOBELCO
12-01-2010, 08:53 PM
hi Sam (K909),

the KOBELCO online parts catalog for your machine shows your hyd pump assy part number to be a 2437U206F1, this supercedes to a new part number 2437U206F3.

you can confirm this by recording the numbers stamped into the oe kawasaki tag.
record the kawasaki number for Quest Hydraulics requires this part number as well
ie; K3V..., or NV###.... the kobelco number will be identified as " USE FOR 37U206F# "

your best bets are to try,

1) QUEST HYDRAULICS INC.
2880 HWY. 20 EAST
FONTHILL, ON, L0S 1E6
Canada
ph: (905) 892-4255
bob@questhydraulics.com
http://www.questhydraulics.com/

bob can either sell you a rebuild or rebuild yours


2) H&R Construction Parts & Equipment Inc.
20 Milburn Street
Buffalo, NY, 14212
United States
BOB WITTMANN
ph: (800) 333-0650
ph: (716) 891-4311 Ext. 4138
bwittmann@hrparts.com
http://www.HRparts.com

they offer rebuilds too


just let both know that i referred.
cheers!

Al Q
12-01-2010, 09:48 PM
I have a sk170-8 with 2600 hrs. The Rpms were down a little from spec, so called my dealer and they did an "A" adjustment and all seemed good. I shut the machine off and restarted after lunch and now the engine will not rev. When the engine is started the stepping motor surges. Any thoughts would be appreciated

MR. KOBELCO
12-01-2010, 10:28 PM
hi Al Q,
a few possibilities...1) they messed up and did not do the A adj properly with the linkages on the stepper motor...could be off a spline if the mechanic removed the link off the splines? 2) they did not change the ball joints or even tighten the nuts up
if you are able, have someone turn the key on and physically watch (observe only) the stepper motor travel
or a wiring connection has come loose and its not finding the limit switch (internal in the stepper motor.
whatever you do do NOT yank on the stepper motor with the key powered on...you will fry the computer.
question: before you turn off the machine do you bring the throttle dial returning it right down to the low idle position?
if not, the computer may not realise on the key on that you are at decel speed which is approx 100 or so higher engine rpm over low idle.
it may drive the stepper motor all the way up to full and hitting the high stop.
at any rate if it is hitting the stops the A adj was not done 100%, they should redo.
if you are not bringing the throttle down to low before letting the engine idle for a few minutes before shutting off start...or you will end up needing a turbo.
cheers!
p.s./ please let me know your ser# and call me at work and we'll get your computer version.
the computer should not drive the stepper motor up to full rpm on key on, even if the throttle is on high when you start the engine. it should be failed safed. if so i'll have to report this to kobelco's attention.

Al Q
12-01-2010, 10:53 PM
Thanks for the quick reply. I do turn the throttle dial down every time I shut down the engine. The dealer mech thinks my stepper motor has failed, but it has never showed any trouble before the A adjustment. I will need to operate the machine before the dealer can get a new one. So to open the throttle manually would I have to remove the linkage? I have owned every series of this size of Kobelco since 1993 and have never replaced a stepper or computer

MR. KOBELCO
12-01-2010, 11:30 PM
hi Al Q,
before you follow below
wd40 the ball joints. lubricant spray stinger under the boots of each ball joint and soak.

if it ends up, i'm sure it will, and you must run the machine, with the power off, remove the linkage off the stepper motor and fuel inj pump at the ball joints where they bolt. do not adj the rod length.
the throttle can then be controlled manually. do not rev to the high stop. your display will read the rpm, do not over rev.
i doubt its the stepper motor.
i can send you the a adj procedure.
if they goofed, they should correct and make the adj proper.

K909
12-02-2010, 07:07 PM
hi Sam (K909),

the KOBELCO online parts catalog for your machine shows your hyd pump assy part number to be a 2437U206F1, this supercedes to a new part number 2437U206F3.

Thanks for your help...:thumbsup

Now... for a really tough question ( I may be way over my head) :Banghead

This is a farm machine and I know very little about heavy equipment and hydraulics. I have however removed the entire pump before and replaced a coupler, put a thumb on and replaced the hydraulic tubes/lines on the boom/stick/bucket...I can replace "parts" I just don't know how they actually all "work".

Currently none of the electronics work. This means that we have no high, low transport speed and that the breakout button on the right stick does not work. RPM's do not increase/decrease as machine works etc. (I don't understand how people can be so rough on equipment, but you can lift the entire instrument panel out of the console and nothing is still connected.)

Anyway, to my question... Would there be any possible way to wire up a separate high/medium/low switch and breakout force button from scratch? If this can be done I'm certain that I can do it with a description of how it works and what parts are necessary.

Thanks in advance...

Al Q
12-03-2010, 10:16 PM
Having the "A" adjustment procedure would be very handy. Should the linkage be a certain length, perhaps a min and max? Does the computer usually fail shortly after there is a stepper motor failure?

Al Q
12-03-2010, 10:22 PM
I think all Kobelco owners should have the A procedure for their particular model as it is sort of a maintainance item

MR. KOBELCO
12-03-2010, 10:46 PM
hey Al Q,
ask and you shall receive.
an e-mail is coming your way.
deal is you'll require my help thru this.
cheers!

MR. KOBELCO
12-03-2010, 10:51 PM
hi hitachi daft,
regarding your 80msr,
please e-mail me a digital picture of your machine cab side shot, of inside your cab, switches, consoles, monitor display, and your engine and its throttle control / speed governor
with this i should be able to figure out
cheers!

hitachi daft
12-04-2010, 08:07 AM
hi mr kobelco got some info from dealership on what to do will try that first and let you know if it worked thanks for getting back to me

MR. KOBELCO
12-05-2010, 11:15 AM
hi K909,
the eng rpm auto-decel is not that important. to make it proper it will cost you quite a bit. you can control the engine rpm manually. your throttle is cable control anyways.
you are better off putting the money into ensuring that the mechatro-controller is fully operating as it should. make sure that all the harnesses are connected.
there will be one that is not.
this computer is the box fixed to the end of the right hand console.
its' function is horse power control.
it reads the eng rpm sensor, the throttle potentiometer on the side of the fuel injection pump and based upon the readings will send a mA current to the solenoid on your pump to destroke the swash of the pumps as to remove the load off the engine so not to stall it out. you do not want the hyd pump to run at full stroke under load or it will cause too much force on the pumps rotating groups squashing the piston shoes.
these electronics of the machine must be operational or you will risk overloading and destroying the hyd pump you have rebuilt or reman that was purchased.
please e-mail me at hf_hydraulics@hotmail.com as so i can better help.
there are setup procedures i can send you.
you should also verify that the hyd pilot (remote) hoses are connected to the proper fitting on the pumps before you start.
with the ignition in the "on" position you should be reading with a digital volt meter
on the two wires to the solenoid of the pumps 24 vdc.
in the right hand console on the side plate, close to the cab floor and just ahead of the computer there should be an access hole. in that hole there is a kpss release switch, with this switch flicked down -> computer control is on.
obviously facing up is "off" or "release".
release is a limp mode. you never want to run the machine prolonged this way.
its too hard on the hyd pumps.
cheers!

ricko836
12-06-2010, 12:35 PM
Kobelco wont start, its a SK130, serial # YPU2331 and it has 4881.5hrs. Our employee messed it up when trying to start it, not sure exactly what they did but I know they used jumper cables and a boost box at the same time, they obviously did something wrong because the boost box back fed or something and it blew apart. It wont start now and all it does is click. Where would be the first place to start?

MR. KOBELCO
12-06-2010, 09:07 PM
hi ricko836,
i just e-mailed some elec schematics for your model and eng type.
call me when you've printed them out and when you are at the machine troubleshooting the probelm.
if i was you i'd be sure to bring 2 new batteries # 31A-1000
new crimp battery cable ends to clean up your cable connections and ground connections
as well as a rebuilt starter.
or either have yours taken off and rebuilt.
one thing i find both operators and mechanics tend to leave out on their circle checks is that the batteries are a fluid level too.
checking fluid and grease points should also include the batteries. out of sight out of mind they get forgotten.
when topping a battery top to indicated level, not up the vent holes, plus add distilled water.
cheers!

Al Q
12-07-2010, 10:38 PM
Mr Kobelco knows what's up with these machines! Thanks again Adam!

Sripola
12-29-2010, 12:19 PM
Hi Mr Kobelco,

Hope you can help me with another import headache i've run into.
We brought down a 1996 Kobelco SK220-3 and it was working fine, but now when i turn the key i get and error code saying "CPU controller 17".
Does this mean the computer is kaput and i need a new one? Also the machine wont even start now, most of the time and and we have to manually hold the throttle open to get it going.

Any advise is much appreicated.
The serial number is LLU0707 if that helps.

Cheers.

barnesrl
01-05-2011, 02:44 PM
0Hello Mr. Kobelco.
Looking for an aftermarket Hydraulic pump for the following.
SK200LC Mark IV, SNYQU4414
Kobelco Pump Assy. 2437U389F2
This is the main pump(s) off the rear of the engine. It is a two ? Tandem pump that Kobelco will only sell as a complete unit. Looking for an aftermarket supplier that will sell either the complete pump or the half that I need.

A manufacturer of this assy. and part number would also help to see if my hydraulics shop can attempt to rebuild this unit.

email barnesrl@embarqmail.com or a call would be greatly appreciated.
419-513-1106 cell 419-238-4749
Thanks
Bob

finaldrive
01-09-2011, 05:33 PM
Bob,

I can help you with that.
I stock new complete units, rebuilt units and all the parts you would need to rebuild your current unit.
It is a double pump stacked together.
The pump is a Kawasaki K3V112DT series.
Where do you have it for repair?
If you haven't taken it to a hydraulic shop, we can use ours.
When it comes to excavator hydraulic pump, we can be the one stop shop for you. Same goes for excavator final drives and swing motors.
New, rebuilt, parts to rebuild or repair and return.
You can give us a call at 1-800-828-8909 Mon-Fri 7:30-4:00 PDT or I'll try and call you tomorrow. (I have out of town visitors coming in for the week, so it might be tough for me personally to call you) If I'm not available (Todd) ask for Jay.

MR. KOBELCO
01-13-2011, 09:42 PM
hi Sripola,
i have had cpu 17 come up now and then.
first check your 5 amp fuses supplying power to the computer.
if fuse loosens off you'll get a voltage drop and in some cases the cpu 17 will display.
keep me posted.

MR. KOBELCO
01-13-2011, 09:45 PM
hi barnesrl,
your best bets are to try,

1) QUEST HYDRAULICS INC.
2880 HWY. 20 EAST
FONTHILL, ON, L0S 1E6
Canada
ph: (905) 892-4255
bob@questhydraulics.com
http://www.questhydraulics.com/

bob can either sell you a rebuild or rebuild yours


2) H&R Construction Parts & Equipment Inc.
20 Milburn Street
Buffalo, NY, 14212
United States
BOB WITTMANN
ph: (800) 333-0650
ph: (716) 891-4311 Ext. 4138
bwittmann@hrparts.com
http://www.HRparts.com

they offer rebuilds too


just let both know that i referred.
cheers!

K909
01-13-2011, 09:49 PM
Thank you very much for your help. ( I haven't logged on here in over a month)

We are having the K3V pump completely rebuilt and we should have it back in a week to 10 days. When it warm up some I will e-mail you to make sure that I get the electronics to the solenoid working properly.

Again, thanks for volunteering your time and knowledge.

Sam

Sripola
01-16-2011, 06:34 AM
hi Sripola,
i have had cpu 17 come up now and then.
first check your 5 amp fuses supplying power to the computer.
if fuse loosens off you'll get a voltage drop and in some cases the cpu 17 will display.
keep me posted.

Hi Mr. Kobelco,
Thanks for your reply. We basically had an electrician check the CPU and he told us that the CPU was receiving power (mentioned about 2 power inputs to the CPU) and he opened it up and checked and told us that some parts of the board were not getting power. So took it away, tested it and told us that the board was actually ok apart from a couple of dry joints.

Anyways, plugged it in and still get the same error code. So i will try your tip and get back to you.

Will get back to youa asap

Cheers,
Imran

Sripola
01-16-2011, 07:20 AM
Hi Mr. Kobelco,

One more question, would you happen to have the electrical schematics for this machine?

Cheers

PD Mech Steve
01-20-2011, 01:55 PM
FYI Everyone. We have a Kobelco SK220LC-IV that we are parting out. Major fire damage but decent U/C, good finals, swing brg, stick, boom and more. Cummins engine is good as well. Needs some cleaning and few hoses but starts and runs like a champ. If anyone is interested feel free to contact us at: sales@pdmechanical.com or visit our website at: www.pdmechanical.com.

fordfairlane
01-25-2011, 11:44 AM
Hi MR. Kobelco. We have our problem with our recently bought Kobelco SK200 Mark V from 1996 with 9500 hours. Serialnr: YN19598.

Itīs some problem with the stepmotor. If you turn the key to ignition you can hear the stepmotor turning and then klicking. If you look at it you can see it pulling in the arm to the pump and then witch a snap return to the starting position over and over again. It can go on for up to 30-40 seconds and then an message saying "error S/PT step motor" appears in the window.

After that you can start the machine but the machine is weak in the engine and hydraulics. If you turn the key from off to ignition enough times and let the stepmotor settle in between the stepmotor will eventually just turn and stay where it is supposed to and you can start the machine and it runs like it is supposed to with good power. Problem is you dont want to spend 30 min to an hour turning the ignitionkey on and off once a minute just to get it going.

How do I fix this. Is it a problem with the stepmotor or an adjusting thing. The Machine is old and we use it to build roads in the forest so budget solution where we dont have to buy an new stepmotor would be nice :-)

Thanks in advance / Samuel from Sweden

finaldrive
01-25-2011, 03:33 PM
If you do require a new stepping motor, I have brand new units for about half of dealer cost.
I can't troubleshoot the motor like Adam (MR KOBELCO) can, but I can help save you money on a new unit.

jimmymorrisonjr
01-25-2011, 08:34 PM
First off, Thank you for all the support Mr. Kobelco. I really appreciate knowing there is support for my 5 Kobelco's. I have actually recieved good manufacturer support for these machines, but I have heard stories of others who have not.

As for the stepping motor problems that was recently posted, I would be willing to bet it is a wiring harness issue. I had a friend with a similiar issue, did a pin out and everything seemed fine. I guess those wires can cross talk without a short. I believe there is a shield for the wires to the stepping motor that can go bad. I don't understand it at all, but it proves to be te harness in many cases. Stepping motors don't usually lose calibration for no reason. One more concern is that if it is the harness you can ruin a controller by running it that way. Oh, not to carry on, but there is a position switch that tells the computer the stepping motor is at the end of it's travel, make sure that is working. Hope I haven't made it worse.

fordfairlane
01-26-2011, 11:08 AM
Thanks for the advice jimmymorrisonjr. I will check the positionswitch and the harness for any visible damage tomorrow

Sripola
01-29-2011, 07:55 AM
Hi guys,

Just to let you know we found the issue with our 220-3, turns out a harness was damaged and anyways repaired it and machines a good un!

Cant believe we spent nearly a month scratching our heads and even took apart the computer because of the error codes we were getting

wsw
01-29-2011, 11:59 AM
Wow man you seem like a really good guy and knowledgable too I will keep you in mind as I ocaisionally work on Kobelco's

pastor
01-29-2011, 05:13 PM
Hello sir,

My father in law and I purchased a Kobelco sk120 mk v series III excavator. We think it is a grey market machine. He is very good at working on machines and has rebuilt cat bulldozers, but this our first excavator. We have had some problems however. When we turn on the machine, the travel sensor (right) comes on, and we know it's because the previous owner detached the sensor from the block for some reason, but we'll replace it in short order. However, the motor will run for about an hour, then the P1 sensor will come on, the engine will shut down, and then it's impossible to start again. We switched the sensors and the P1 shut code disappeared. Then we had to prime the system by bleeding out the air from the fuel injector pump and then opened a line at an injector until we had fuel and then, and only then, did it start. Then it ran fine. We shut it down because it was late. Next morning we started up and it ran fine. Then after an hour, there was a rattle in one of the hydraulic lines on the boom, then the engine cut back, the P2 sensor turned on, and we shut it down. I changed the sensors, (to shut off the P codes, which worked) and bled air out of the fuel injector pump again, but it would not start. It seems to suck air into the fuel lines somehow. It's a mystery. Anyone have any ideas? Is the computer shutting us down? Is it losing fuel pressure when it worked beautifully for an hour?

There are other problems, we'll get to them, but having a reliable start is first and foremost.

Thanks

MR. KOBELCO
01-30-2011, 12:49 PM
hi pastor,
mark v is a grey market
i can likely help find your problem
but i will need your ser# and also engine mfg & model
plus a digital picture of inside your cab of switches and cab monitor display
please e-mail me this info i have requested to hf_hydraulics@hotmail.com
cheers!

MR. KOBELCO
01-30-2011, 01:06 PM
hi fordfairlane,
sounds to me it can be needing an adjustment and/or the ball joints on the rod are seizing up, can also be the wiring to the limit switch for the computer sensing the stepper motor starting point and off point maybe shorted or a break in the wire.
the stepper motor limit switch is the one harness in the shape of a triangle.
the kobelco only uses 2 of the 3 wires. kobelco electrical schematics reference the wires of the kobelco harness only by colour and such and not the wiring of said component.
i can likely help,
i will need a digital picture of inside the cab, switches, buttons and cab display monitor, also the engine mfg & model and a picture of your stepper motor which should include the mechanical linkage hookups.
e-mail to hf_hydraulics@hotmail.com
please note: do NOT force stepper motor linkage with ignition switch on powering up machine for you will burn out the computer.
cheers
adam.

Sandis Dad
02-02-2011, 06:09 PM
We recently bought a Kobelco SK 30UR at an auction. It's a great looking machine but we need Owners/Users manals and maybe parts list. Everyone that we have contacted say it is a "gray market" machine and no one has any info on it. What is the difference between the SR and UR? Not sure what type hydraulic fluid to use. We aren't sure where to find the SN (most everything is in Japanese), the only number we found so far that we recognize is: PR00991. Any help is appreciated.

fordfairlane
02-02-2011, 06:52 PM
Hi MR.Kobelco. We searched the machine today for broken cables and found that the four cables going from the stepmotor was once cut off and the original harnesscoupling removed and replaced with tape. Has been some problems here before we bought the machine?? We remade the connection with new couplings . I didn.t help so we took the stepmotor out and opened the lid to the microswitch. It seemed to be broken cause it didnīt make a circuit when you depressed the button and measured it with a multimeter. Luckily we had a new microswitch at the garage which was basically the exact same component but different color. We replaced it and going to try the stepmotor in the machine tomorrow. Hope this was the problem otherwise Iīll be back with pictures and the info you requested before.

Also I had a question regarding the Powerboost in the right handle. When holding it down it doesnīt seem to make the machine any stronger. It gets slow almost "locked" in the movement and weaker in the hydraulics. Could this also be related to the stepmotorproblem? I have managed just fine with the power already in the machine but if the function is there it would be great if it worked.

Any suggestions??

/ Thanks in advance. Samuel Steen

fordfairlane
02-03-2011, 03:32 PM
Today we put the stepmotor back in the machine with the replaced limit microswitch. It worked out almost perfect. Stepmotor finds the starting position right away The engine rpms though seems to have raised 100-150 revs in all three diggingmodes H S FC aswell as idle from before we took the stepmotor out and from what the shopmanual recommends. I dont think this is a big problem if you just dont pull the lever all the way back to full but check the rpms instead to keep from overreving.

Unless this is affecting other stuff like hydraulic pumps and such. If it is a problem then we have to adjust it in some way. Im looking forward to trying the machine out in some heavy digging again to see if this has had other positive effects on the machine performance

MR. KOBELCO
02-10-2011, 08:45 PM
We recently bought a Kobelco SK 30UR at an auction. It's a great looking machine but we need Owners/Users manals and maybe parts list. Everyone that we have contacted say it is a "gray market" machine and no one has any info on it. What is the difference between the SR and UR? Not sure what type hydraulic fluid to use. We aren't sure where to find the SN (most everything is in Japanese), the only number we found so far that we recognize is: PR00991. Any help is appreciated.

hi,
most of the UR i have seen have the offset boom.
the serial number likely is the PR-00991
for a parts cat and operators manual try contacting Leonard over at Farmers Equip
http://www.farmersequip.com/lynden-location.htm
he would be the best bet to purchase these catalogs in english language.
once you have a parts cat if i cannot help with parts he likely could.
cheers!
adam.

MR. KOBELCO
02-10-2011, 08:57 PM
Today we put the stepmotor back in the machine with the replaced limit microswitch. It worked out almost perfect. Stepmotor finds the starting position right away The engine rpms though seems to have raised 100-150 revs in all three diggingmodes H S FC aswell as idle from before we took the stepmotor out and from what the shopmanual recommends. I dont think this is a big problem if you just dont pull the lever all the way back to full but check the rpms instead to keep from overreving.

Unless this is affecting other stuff like hydraulic pumps and such. If it is a problem then we have to adjust it in some way. Im looking forward to trying the machine out in some heavy digging again to see if this has had other positive effects on the machine performance

hi,
the stepper motor has to be adjusted correctly and a computer adjustment procedure followed.
this will all have to do with the machine horsepower control by the controller cpu.
as far as the power boost, yes the machine hydraulics will slow down but the hydr pressure should rise.
this is if the main relief has been set right and the psv solenoid works as should.
power boost button on the joystick is for momentary use only, for increased bucket breakout force.
the heavylift switch is for longer use when craning holding up a heavy load once lifted.
both buttons cut the pumps flow and raise the hydr system pressure.
if i get pictures i will have an idea of your cab, switches, engine and stepper motor i can send you a generic adjustment procedure to follow. it should work for you.
cheers!
adam.

ltlewade17
02-13-2011, 09:00 PM
Mr. Kobelco I have a SK030-2, I love the machine, but hate the cost of parts in my area. I need an igintion switch which the dealer wants $163.00(US) and a sight glass $64.00 and suggestions, the next closest dealer was half the price but said he couldnt ship them to me because it was not his area. I really dont want to use a differant kind of switch, and redo a bunch of wiring but for those prices I might just check the Hyd. oil by unbolting the top and rewire the switch

ltlewade17
02-13-2011, 09:07 PM
and I cannot ebay or google anything for this model. I bought it for $6000 and these are the only things wrong with it so far so I still got a deal but I just dont want to have to pay that much for basic items. I have the shop manual and the parts book online the part # is YN50S00029F1 for the switch and PV58S00001P1 for the sight glass any help would be awsome. I would not be opposed to buying a CAT switch if I knew they were setup the same

ltlewade17
02-13-2011, 09:15 PM
We recently bought a Kobelco SK 30UR at an auction. It's a great looking machine but we need Owners/Users manals and maybe parts list. Everyone that we have contacted say it is a "gray market" machine and no one has any info on it. What is the difference between the SR and UR? Not sure what type hydraulic fluid to use. We aren't sure where to find the SN (most everything is in Japanese), the only number we found so far that we recognize is: PR00991. Any help is appreciated.

I love my SK030-2 It is just very very hard for me to get parts, what is the year on it I have a service man. in english for up to 1997, I think. If ours is the same, I can try to copy it for you.

ltlewade17
02-13-2011, 09:18 PM
most of the parts catalogs are right on the Kobelco website under parts too.

mtnrider
02-14-2011, 06:39 PM
I have a Kobelco SK120LC MKIV YPU-1087. I can hear the two speed travel control relay clicking when I throw the speed toggle, but it stays in high travel speed. It does go to low speed on uphill travel but not when I throw the switch, making delicate movements difficult and dangerous. If you have any info where the actual hydraulic and solenoid valve is located that would be a great help.
Many thanks.

FarmerAlex
02-17-2011, 07:05 AM
Gday all, i'm looking for a mini X in the 3.5 - 4.5 ton range and came across the SK35SR-1 its a very neat looking unit. I was wondering if anyone can give the lowdown on these units and how successful they are?

Any info would be very much appreciated

cheers
alex

MR. KOBELCO
02-17-2011, 10:18 AM
Mr. Kobelco I have a SK030-2, I love the machine, but hate the cost of parts in my area. I need an igintion switch which the dealer wants $163.00(US) and a sight glass $64.00 and suggestions, the next closest dealer was half the price but said he couldnt ship them to me because it was not his area. I really dont want to use a differant kind of switch, and redo a bunch of wiring but for those prices I might just check the Hyd. oil by unbolting the top and rewire the switch

hi ltlewade17,
first off need to confirm 100% by your serial number.
ser# PW-0#### ????
so far,
the correct ignition switch part number should be PV50S00001F1, suggested canadian list of
$ 186.59
the hyd tank oil level sight gauge assy. is the PV58S00001P1, suggested canadian list of $ 56.87.
cheers!

MR. KOBELCO
02-17-2011, 10:47 AM
I have a Kobelco SK120LC MKIV YPU-1087. I can hear the two speed travel control relay clicking when I throw the speed toggle, but it stays in high travel speed. It does go to low speed on uphill travel but not when I throw the switch, making delicate movements difficult and dangerous. If you have any info where the actual hydraulic and solenoid valve is located that would be a great help.
Many thanks.

hi mtnrider,
the 2-speed solenoid is located underneath the cab, second panel back from the front of the cab, the manifold is mounted against the side frame rail. it contains 2 solenoids, the one towards the counterweight is the 2-speed, the other to front of cab is the safety lever lock. part# 2436U1453S11. our price is $ 497.55 canadian.
the ohms of solenoid 13.5 ohms up to max. 30 ohms.
i have sent you an e-mail also of the parts print outs.
in document1.pdf - see " H "
cheers!
adam.

ltlewade17
02-17-2011, 11:24 AM
hi ltlewade17,
first off need to confirm 100% by your serial number.
ser# PW-0#### ????
so far,
the correct ignition switch part number should be PV50S00001F1, suggested canadian list of
$ 186.59
the hyd tank oil level sight gauge assy. is the PV58S00001P1, suggested canadian list of $ 56.87.
cheers!

Do you think I can re-wire it with a 4 post key switch, and a seperate push button switch for the pre-heater? What other systems might doing something like this effect? Could I just use a CAT five post switch instead I found a few on EBay for $5.00-$20.00. And I know that the sight glass comprises of Banjo bolts going to that plastic piece, can I use compression fittings with clear air brake tubing instead?

MR. KOBELCO
02-17-2011, 10:13 PM
Gday all, i'm looking for a mini X in the 3.5 - 4.5 ton range and came across the SK35SR-1 its a very neat looking unit. I was wondering if anyone can give the lowdown on these units and how successful they are?

Any info would be very much appreciated

cheers
alex

hi,
we have sold quite a few, other than the routine maintenance, if has a cab, the cab door locking mechanism uses plastic clips, up here in canada where it gets quite cold they become brittle and brake. no biggie for the replacement clips have been re-engineered to solve this issue. one more comes to mind, with a cab (again) the air cond unit's receiver dryer (if attached) rigidly by hard plumbed, there is a short line which can fracture. this is now replaced with an a/c hose.
cheers!

randylil
03-03-2011, 10:08 AM
I have a Kobelco SK60 Mark III excavator, model number LE16073, that was burnt in a fire & I have redone the pilot lines etc on the machine. I am having some trouble with it. Right now the right hand track will not travel unless the left hand one is going at the same time or the boom or bucket has to be moving in order for the left hand track to move. I also have no power on the arm (it will not push or pull). The whole machine moves very slow. But I have had it working, the track stopped working just the other day. If anybody can help me it would much appreciated. I don't know if you e-mail but my e-mail is rrautomotive@mainester.net. Thank you.

randylil
03-03-2011, 11:53 AM
Hi Mr Kobelco
I have a Kobelco SK60 Mark III serial # LE 16073. The right hand travel is very slow to nonexistant except when operating any other function then it turns on and goes. It will work in a straight line forward or backward only when using the left hand travel. It first started with a "lockout" of all functions when using the left hand travel (except for right hand travel) nothing else will work. This machine was totaled in a fire but everything has been rebuilt or replaced along with being rehosed. I have 300 psi of pilot pressure to the travel that doesn't work right. But I must be bypassing somewhere untill I use another function. I have checked all check balls, screens, changed filters and swapped relief valves, but it never changes, maybe for the first 5 minutes or so it will work fine and then it starts to act up and not work right. If you let the machine sit for 10 minutes it will start working all right for another 5 minutes and then goes right back to messing up. The bucket and arm do not have any power either. They won't even push over a snow bank. My e-mail is rrautomotive@mainester.net if you need to e-mail me. If you could please help me it would be much appreciated.

Bert304
03-04-2011, 09:32 AM
Hello Everyone
I have a Kobelco Acera Super Version SK200 (Grey market) and it had a fire when someone set the magnet down on the ground before turning it off. I wrote Mr. Kobelco an email but would like any suggestions on where to get wire schematics and Hydraulic schematics for the machine. The problem I am trying to fix right now is the wires to the alt were burnt off. I put a different alt in but can not figure out where the wires go? Does anyone have a pic or something to help?

Thanks

LACHAU
03-04-2011, 12:09 PM
Hello Everyone
I have a Kobelco Acera Super Version SK200 (Grey market) and it had a fire when someone set the magnet down on the ground before turning it off. I wrote Mr. Kobelco an email but would like any suggestions on where to get wire schematics and Hydraulic schematics for the machine. The problem I am trying to fix right now is the wires to the alt were burnt off. I put a different alt in but can not figure out where the wires go? Does anyone have a pic or something to help?Thanks

Hi Bert304,
Your KOBELCO 's same like this?? If yes. I give you the electric diagram of it

http://i199.photobucket.com/albums/aa156/A2Z_028/SK200-6.png

http://www.mediafire.com/?wqsisxc8bkyww4i

LACHAU
03-04-2011, 12:11 PM
[QUOTE=LACHAU;285118]Your KOBELCO 's same like this http://i199.photobucket.com/albums/aa156/A2Z_028/SK200-6.png??
If yes. I give you the electric diagram of it.

http://www.mediafire.com/?wqsisxc8bkyww4i

LACHAU
03-04-2011, 12:14 PM
your kobelco 's same like this http://i199.photobucket.com/albums/aa156/a2z_028/sk200-6.png??
If yes. I give you the electric diagram of it.

http://www.mediafire.com/?wqsisxc8bkyww4i

Bert304
03-04-2011, 01:01 PM
My mechanic is reviewing it and it might be the correct one. Could you send me a picture of the Altenator for the wire connections.

Bert304
03-04-2011, 03:33 PM
Sorry the schematics did not match up.
I guess there is a difference between the Acera and the Mark 5.

This is an Acera machine which I would guess is older.

If anyone that has an Acera SK200 can take a picture of the wires on the Alternator and post it. The wires that we are not sure about is the 3 small wires for the plug on the side near the positive cable attachment bolt

Marksan
03-06-2011, 06:10 AM
l had packing issues in my wrist cylinder and have had it repacked.

However, i noticed when i had the hoses uncoupled and fired up the engine it was running oil out of both hoses to the wrist cylinder, which i dont think is supposed to happen.

Now (hoses reconnected) when i curl the bucket up to the stick with the stick in a vertical postion it stays there (before it would creep down). When i push the bucket out it will not stay there it will creep down to a neutral postion (in a postion the bucket would hang with no cylinder) in about 20-25 secs.

Has some crud, stuck something open? lve got no clue where to start the hunt!

753 Bobcat
03-14-2011, 05:21 PM
1) are you having trouble searching for new o.e.m., remanufactured, reconditioned, or new aftermarket replacement parts?
2) is your machine acting up and not running the way it should?
3) do you require help pin-pointing the root cause of the problem?
4) do you have any unanswered questions?
5) are you looking for manuals specific to your model and by serial number?

please post your topics here. i will do my best to help out.
as i am also sure and gladly invite the other experienced kobelco mechanics on this forum to ring in with advice as well!

thank-you!
:)

hello
this is new to me
i am based in the UK and have an SK135SR (2001)
it is suffering from lack of power (speed?)
we have an SK70SR that we had new and this is much faster in operation
i had the main relief valve replaced and the main pressures are up to scratch
the pumps sound noisy when under load
it used to have an extending dipper on it which i swapped back to standard
some one has put a tapping into the round blank cover on top of the hydraulic tank which is capped off
the machine is slow in most operations
just had the engine rebuilt due to water damage (not linked)
and it runs as new
i did read the thread on re-lapping the relief valve seat???
please can you point me in the right direction
many thanks

GaryHoff
03-14-2011, 11:56 PM
how many hours are on your machine?? Please better describe the lack of power. (is it not able to lift as much as before, is the boom or stick slow in opperation, is either track (or both) slow, or lacking power?)
Start by checking your hydraulic filter and the suction screen (in the hydraulic tank) for and brass or metal debris. If significant amounts are found, there may be a faulty pump. (since you said the pumps were noisy)


If no significant amounts are noticed, you may have a faulty psv valve (located on top of the pumps) This may be more likely, as you stated that you were getting full pressures. Can you tell me what pressures you were reading, and for what functions? What is your pilot pressure at? Are you getting full pilot pressure to the main contol valve? (there are screens in the fittings for the pilot controls that may be plugged) Were you reading your pressures from the diagnostic screen? More information is requried for a proper diagnosis.

randylil
03-18-2011, 11:52 AM
Hey everyone. I have a Kobelco SK60 Mark III serial # LE 16073. I am looking for the pressure schematics for the machine and where to check the pressures. If anyone can help it would be much appreciated. Thank you.

oregonlogger
03-19-2011, 10:46 PM
I have a 2005 sk330 kobelco log loader, the travel is working fine but the rest of my functions are very slow and will barely move, any suggestions?

oregonlogger
03-19-2011, 11:22 PM
hello MR kobelco, I have a sk330lc log loader, a 2005 dynamic acrea. the travel is working fine but the rest of my functions are sluggish and will barely move. any suggestions?

LACHAU
03-20-2011, 03:07 AM
Hi dear

LACHAU
03-20-2011, 03:11 AM
Hey everyone. I have a Kobelco SK60 Mark III serial # LE 16073. I am looking for the pressure schematics for the machine and where to check the pressures. If anyone can help it would be much appreciated. Thank you.
Hi RANDYLIL,
You can download the SERVICE MAN HAND BOOK of your machine, all your need and more at below link.
IT'S HERE (http://www.mediafire.com/?qmonnmzlmgo)

MR. KOBELCO
03-20-2011, 10:52 AM
hello MR kobelco, I have a sk330lc log loader, a 2005 dynamic acrea. the travel is working fine but the rest of my functions are sluggish and will barely move. any suggestions?

hi oregonlogger,
please provide you ser# YC06/YC07 ?
i will suggest that you call me when you are at the machine and sitting in the cab seat.
there are various maintenance check screens that i can get you into and with you as my eyes,
with some luck we can pin-point your problem.
now unfortunately i am off to Vegas tomorrow night for the CONEXPO.
if you can it would be quicker and easier for you to deal with this tomorrow morning first thing
or else i'll be harder to get hold of and pressed to find time to get back to you.
call me at home ph: 1-905-697-9626
thx
adam

wsw
03-20-2011, 11:16 AM
The initial lower cost of buying these mchines never seems to pay off in the end

Marksan
03-21-2011, 11:54 AM
The initial lower cost of buying these mchines never seems to pay off in the end

A fascile observation and complete Bollocks at that.

Are you going to substanciate that, or are you just bored?

wsw
03-21-2011, 06:52 PM
have you ever had downtime? have you ever bought parts?

erik1727
03-22-2011, 09:07 PM
i hone kobelco sk025 1998 #pv04721 what kind is the main pump, were can i get internal parts;
the right track as no power so is the boom; so i figure exit 1 is the probleme the rest works find

vindeez
03-24-2011, 08:57 PM
I have a Kobelco SK45, the hydraulics seem to be a little slow and under powered. There are 2 cylinoids mounted on the main pump, each with a pigtail with wire colors of red and black. There is nothing hooked up to the pigtails, and i cant seem to find the other ends in the harness. Could this be the cause of my slow and week hydraulics? I am looking for any type of parts maual or service manual, my serial number starts with a PY and from talking to my dealer, it is a Japanese machine and they would not help me with any info. I dont believe it is the SR model. Any help, in any direction, would be greatly appreciated... Thanks

LACHAU
03-26-2011, 06:54 AM
.. i am off to Vegas tomorrow night for the CONEXPO.
if you can it would be quicker and easier for you to deal with this tomorrow morning first thing
or else i'll be harder to get hold of and pressed to find time to get back to you.
call me at home ph: 1-905-697-9626
thx
adam
Hi Adam, Could you take some photos of the new series of KOBELCO excavator at CONEXPO? How about the brochure of them, could you send the brochure to my mail: kcvnphat@yahoo.com. Your infomation is greatly appreciate.

erik1727
03-26-2011, 10:12 PM
ok i did rebuild the pump myself everyting back to normal power and all................
2,5hrs only RnR

Matt_H
03-27-2011, 01:04 PM
I would start a new thread but it won't let me, but I'm looking for opinions on the 2010 sk210 local deal has a goverement rent return with 470hrs on it full load machine. I'm not familar with these machines at all but the price is right at 130,000cdn let me know what you think.

MR. KOBELCO
03-29-2011, 10:47 PM
I would start a new thread but it won't let me, but I'm looking for opinions on the 2010 sk210 local deal has a goverement rent return with 470hrs on it full load machine. I'm not familar with these machines at all but the price is right at 130,000cdn let me know what you think.

the kobelco sk210 model is known as the machine that put kobelco on the map...
the sk210 is virtually bullet proof...
advise of the ser# yq09-u#### by e-mail @ hf_hydraulics@hotmail.com
you want to make sure it is not a grey market machine or something.
i can run the serial number for you.
other than routine maintenance, using the proper fluids & filters and changing them at the recommended intervals you should have little probelms - can put an easy 5,000 - 6,000 hours on her
cheers!

MR. KOBELCO
03-29-2011, 10:54 PM
I have a Kobelco SK45, the hydraulics seem to be a little slow and under powered. There are 2 cylinoids mounted on the main pump, each with a pigtail with wire colors of red and black. There is nothing hooked up to the pigtails, and i cant seem to find the other ends in the harness. Could this be the cause of my slow and week hydraulics? I am looking for any type of parts maual or service manual, my serial number starts with a PY and from talking to my dealer, it is a Japanese machine and they would not help me with any info. I dont believe it is the SR model. Any help, in any direction, would be greatly appreciated... Thanks

hi,
if you advise the model with added description such as super version, -6es, mark ?, acera, beetle, etc...
and the complete ser#
and e-mail me pictures of your machine esp. the hyd pump compartment
i might be able to help you with this
e-mail: hf_hydraulics@hotmail.com

MR. KOBELCO
03-29-2011, 10:56 PM
i hone kobelco sk025 1998 #pv04721 what kind is the main pump, were can i get internal parts;
the right track as no power so is the boom; so i figure exit 1 is the probleme the rest works find

hi,
please advise me of all manufacturers tag info on pump
make, model, ser#, etc...
and i can look into parts availability for you
cheers!

MR. KOBELCO
03-29-2011, 11:00 PM
The initial lower cost of buying these mchines never seems to pay off in the end

as i stated before, please give me a call at work - 905-888-9070
and introduce yourself.
my name is adam.
i am the parts & service mgr.
and if you already know that - please do let me know what it is that is exactly bugging you?
life is way too short to allow things to fester!

CNY-farmkid
04-01-2011, 11:53 PM
Hi Mr. Kobelco,

a newbie, bought a SK025 # PV05244 for my hobby farm (Toy) and having hydraulic power problems and could use your assistance. Boom raises and sets with power, Bucket curls with Power. Drawing the dipper in and rotating are both very weak. blade has no down pressure and track power is better right side than left but not what i would call 100%. during rabbit travel, to lift the boom stops travel and neither function really operates. while drawing dipper in, if you also joystick to pivot on turet, dipper has a little more power but not much. Thanks in advance for your assistance.

ben46a
04-02-2011, 01:11 PM
P2633 Service code in a 2008 SK485. Any clue to what it represents, none of our books have that particular code in it. All oils and fluid levels up to snuff.

MR. KOBELCO
04-04-2011, 07:45 PM
P2633 Service code in a 2008 SK485. Any clue to what it represents, none of our books have that particular code in it. All oils and fluid levels up to snuff.

i found info. i'll e-mail it over.
cheers!

CNY-farmkid
04-04-2011, 10:37 PM
Mr. Kobelco et al,

I also wanted to share some info! I was not able to find the BSPP fitting Sunday while testing so i had a 1/4 ORB to 1/4 NPT hose built to test the main reliefs. while testing, i discovered P1 near 2900 at max PSI (Near the 210 kgf/cm2) while P2 read 700 psi cold and would drop to 500 after operation. interesting enough P2 runs the Left Travel (Weak) , Arm (no Power) and swing. P3 runs the Slew and Dozer and i found even less there. 500 PSI cold to 250 warm.

The Dozer is on Spool 1 and the Arm is on Spool 4. the dozer is manual while the arm is pilot. the only connecting feature of these to units is a leak in the Valve Body. for kicks!!! while operating the arm at full out i noticed the valve body jumping/splitting a very small amount. saw fluid get suck in between and show back up after i let off. i grabbed a 13mm wrench and tightened the entire valve body assembly together (4 bolts that hold it all together and poof! all fixed. full pressures at mains. the fluid had to be bypassing to the return.

Thank You ADAM! your help has been greatly appreciated. i will be in contact soon for maintanence to keep the old girl running! as a new owner... it is very rewarding to find someone willing to help with professionalism. a week ago i purchase this machine toungue and cheek as i knew there was a hydraulic issue. i have never operated an excavator and now i have a greater appreciation for the hydraulic system! Thanks again. i hope others find this information helpful on their machines.

MSE
04-10-2011, 10:15 AM
I have an SK120 (engine & pump compartment on side instead of rear top access) and I have started to pull the engine and have come to a dead end in how to separate the pump from the engine. I can't really get to the pto assembly. Do the setscrews in the hub really hold the shaft on the pump in place, or am is the friction between the pump and 'bracket' or 'bellhousing' just something to be overcome?

willie59
04-10-2011, 10:52 AM
Welcome to the forum MSE.

What series SK120, Mark III, IV, or V?

What serial number?

MSE
04-10-2011, 01:39 PM
Welcome to the forum MSE.

What series SK120, Mark III, IV, or V?

What serial number?

Pretty sure it's a Mark V
S/N LP-15xxx

willie59
04-10-2011, 07:23 PM
Kinda hard to picture the disassembled drive coupler, as it's shown assembled in the parts drawing, but it does come apart.

Hub #2-2 is secured on pump shaft with set screws 2-5. Then the three aluminum blocks that the socket head cap screw 2-4 fit into are fitted to hub 2-2, and secured with 2-4 cap screws.

Three items 2-7 are fitted to flywheel and secured by 2-3 cap screw.

The rubber elastomer does not have a number on the drawing, but is the material pictured between 2-7 and the aluminum blocks secured by cap screws 2-4. This assembly does simply slip apart, but over time they do tend to get deformed from torque load of engine driving the hyd pump. I've had to put some good prying pressure on flywheel housing cover to get the assembly to come apart.



78309

C & C Con
04-11-2011, 02:39 PM
I have an sk 150 that will start but stalls with in seconds. changed filters and get same results. any ideas ?

drzach
04-11-2011, 03:30 PM
hi i have a kobelco mini excavator sk30ur and want to change hydraulic oil .can anyone advice .not much room . thx

MR. KOBELCO
04-11-2011, 08:25 PM
I have an sk 150 that will start but stalls with in seconds. changed filters and get same results. any ideas ?

hi,
SK150LC III, or SK150LC IV. what is the serial number? which engine Mitsubishi or Cummins?

MR. KOBELCO
04-11-2011, 08:32 PM
hi i have a kobelco mini excavator sk30ur and want to change hydraulic oil .can anyone advice .not much room . thx

hi,
one thing you need to do is to try to get as much hydr oil back into the tank as possible.
if you are able, have the boom streched right out hiding the chrome on all the cylinders, get the boom down as well even into a hole.
be sure to relieve the pressure off the hydr tank before opening the lid (if tank is pressurised)
most are.
make sure to clean the bottom of the hyd tank too.
wipe up the sediment.
using lint free cloths.
what advice are you wanting exactly?
which is the recommended oil to use?
the hydr oil should be of mobile use recommended for outdoor use and a HVI (high viscosity index)
if you let me know whom you use such as Texaco, Shell, Exxon, etc...
i can provide the name.
cheers!

C & C Con
04-11-2011, 08:36 PM
sk150lcIV with cummins. I will get ser # when on site tommorrow

MR. KOBELCO
04-11-2011, 09:00 PM
sk150lcIV with cummins. I will get ser # when on site tommorrow

i will also need to know what type of fuel inj pump.
rotary style or in-line?

HappyDigger
04-12-2011, 06:11 PM
Hi All

Can anyone point me in the direction of an Kobelco aftermarket vendor in the UK or Europe?

Thanks in advance
Happy Digger

grandkobelco
04-14-2011, 06:34 AM
I think mr kobelco is going in the right direction. if you have a inline inj pump the "pull, run" soliniod may be bad. These mount between the inj pump and the block. It looks bad but they can be changed.

tehlab
04-15-2011, 02:45 AM
Hello everyone, I need a scheme for sk330-lc serialno.yc07 02884-2003years. The display I have error "I2 batery relay. Not have automatically throttle, I checked batery relay and it works. I checked all the wires that give the information to work. If someone has an idea how to solve the problem thanks in advance. my email is: tehlab@gmail.com

mgirard
04-16-2011, 01:06 PM
Hi,

I'm thinking about buying a 2001 Kobelco sk210, but the controls are opposite to what my other machines have; the boom is on the left and the stick on the right. Is it possible to switch this, and if so, how?

Thanks

MSE
04-16-2011, 06:17 PM
2-7 is actually one piece. With the hopes of the shaft 'slipping' out, the rubber (2-7) is giving up the fight. I'm seeing that 2/7 should slip off of 2-3 as they are attached to the flywheel. Any suggestions, or should I break out the wd-40 and let it soak?

MSE
04-16-2011, 06:20 PM
Kinda hard to picture the disassembled drive coupler, as it's shown assembled in the parts drawing, but it does come apart.

Hub #2-2 is secured on pump shaft with set screws 2-5. Then the three aluminum blocks that the socket head cap screw 2-4 fit into are fitted to hub 2-2, and secured with 2-4 cap screws.

Three items 2-7 are fitted to flywheel and secured by 2-3 cap screw.

The rubber elastomer does not have a number on the drawing, but is the material pictured between 2-7 and the aluminum blocks secured by cap screws 2-4. This assembly does simply slip apart, but over time they do tend to get deformed from torque load of engine driving the hyd pump. I've had to put some good prying pressure on flywheel housing cover to get the assembly to come apart.



78309

2-7 is actually one piece. With the hopes of the shaft 'slipping' out, the rubber (2-7) is giving up the fight. I'm seeing that 2/7 should slip off of 2-3 as they are attached to the flywheel. Any suggestions, or should I break out the wd-40 and let it soak?

willie59
04-16-2011, 09:30 PM
You may be right, part #2-3 may simply be studs that #2-7 slips onto, it may well be stuck. But that's the only way it's going to come apart as the hub should be locked to pump shaft with the set screws. If you can't get it to slip off, you just might have to destroy the rubber elastomer and replace the drive coupling. Stuff like that happens.

anestg
04-17-2011, 12:05 PM
1996 MKIV sn0002739
Gauge cluster display months ago began to 'reset' while running. By 'reset' I mean the Screen would go blank, sound toned with three tones then the screen would reset with the word "OK" in the display along with the temperature and fuel 'column bars' maxing out. All the while the machine continued to operate. Months ago this would happen infrequently, like 2 or 3 times per day. With time this same combination of resetting, sounds and temperature/fuel column bars maxing out became more frequent until now the gauge cluster display is not working. At the suggestion of the Kobelco dealer I've checked the harness wiring where it rubs on the trays for the computer.
Any suggestions would be much appreciated. thanks

MR. KOBELCO
04-17-2011, 06:02 PM
1996 MKIV sn0002739
Gauge cluster display months ago began to 'reset' while running. By 'reset' I mean the Screen would go blank, sound toned with three tones then the screen would reset with the word "OK" in the display along with the temperature and fuel 'column bars' maxing out. All the while the machine continued to operate. Months ago this would happen infrequently, like 2 or 3 times per day. With time this same combination of resetting, sounds and temperature/fuel column bars maxing out became more frequent until now the gauge cluster display is not working. At the suggestion of the Kobelco dealer I've checked the harness wiring where it rubs on the trays for the computer.
Any suggestions would be much appreciated. thanks

hi,
please provide your model and proper serial number.
i do not have much to go on without knowing your exact machine.
thanks.

MR. KOBELCO
04-17-2011, 06:06 PM
Hi,

I'm thinking about buying a 2001 Kobelco sk210, but the controls are opposite to what my other machines have; the boom is on the left and the stick on the right. Is it possible to switch this, and if so, how?

Thanks

it is easy to switch the controls over. if has no pattern changer then you will switch the pilot hoses at the pilot sensor manifold located behind the cab under the compartment floor panel/cover. do not let swing away from you or will brake sensors.
you switch the hoses closest to you. se-3 with se-7 & se-4 with se-8.
cheers!

anestg
04-18-2011, 01:32 AM
My apologies for not including what you so clearly ask for.
1996 MKIV 200 LC sn SN SNYQU2739

anestg
04-19-2011, 07:02 PM
hi,
please provide your model and proper serial number.
i do not have much to go on without knowing your exact machine.
thanks.

1996 MKIV 200 LC SNYQU2739
noticed today that in addition to the temperature, fuel gauge, and travel speeds the hour meter is not working either. The only thing working is the auto accel light.

MR. KOBELCO
04-19-2011, 07:40 PM
1996 MKIV 200 LC SNYQU2739
noticed today that in addition to the temperature, fuel gauge, and travel speeds the hour meter is not working either. The only thing working is the auto accel light.

hi,
it sounds to me that likely the gauge cluster display itself has failed.
slim chance can be possible that the C-2 gauge cluster controller (display computer) has failed instead.
c-2 is the control of the "idiot" lights, alarms, fault codes, warning sounding buzzer...
this c-2 controller computer is located behind the cab seat underneath the console. the frame under the plastic covering unbolts to remove to access.
along the corners and the front portion. the c-2 controller is on the tier shelf 2nd one down to the back right.
the part numbers are
* YN59S00027F1, GAUGE CLUSTER DISPLAY, LIST PRICE $ 1,991.23 CDN ( stock @ kobelco parts depot usa ) *
2480U371F4, C-2 GAUGE CLUSTER DISPLAY CONTROLLER $ 2,419.94 CDN ( stocked part on our shelf )

now do not fret...i have had some luck fixing them at times, an avenue you may want to consider?
to save you diagnose time, the display is the same in basically all the kobelco mark iv models...do you know a friend that you can plug in yours to see if it works or not?
do you have an electrical schematic on your model or checking wiring blindly?
if you e-mail me i can reply with tech info
hf_hydraulics@hotmail.com

Kobe130
04-21-2011, 02:38 PM
Hello Mr Kobelco et al,

I have just taken delivery of a Kobelco SK130LC. Serial #YPU 2328. It's marked with a Dynamic Acera decal but I cannot find out much info on what this meant for this machine. It does not appear to have a computer in it just a lot of relays. So this is more related to hydraulics controls I guess?

This machine is in nice shape (5500 engine hours showing) but needs the usual stuff such as hoses which I'll be pleased to replace. However, I have a new 42" bucket with a monster thumb from Bodine to go on it. Now considering the weight I was wondering if thoughtful people ever add to the counter weight to balance the new extra weight on the end of the dipper stick?
The bucket/thumb weighs in at 1,800 lbs. The thumb is 800 lbs plus cylinder.

Anybody?
Thank you from Winnipeg, MB, CA.

MR. KOBELCO
04-21-2011, 10:01 PM
Hello Mr Kobelco et al,

I have just taken delivery of a Kobelco SK130LC. Serial #YPU 2328. It's marked with a Dynamic Acera decal but I cannot find out much info on what this meant for this machine. It does not appear to have a computer in it just a lot of relays. So this is more related to hydraulics controls I guess?

This machine is in nice shape (5500 engine hours showing) but needs the usual stuff such as hoses which I'll be pleased to replace. However, I have a new 42" bucket with a monster thumb from Bodine to go on it. Now considering the weight I was wondering if thoughtful people ever add to the counter weight to balance the new extra weight on the end of the dipper stick?
The bucket/thumb weighs in at 1,800 lbs. The thumb is 800 lbs plus cylinder.

Anybody?
Thank you from Winnipeg, MB, CA.

hi,
year: 1998
KOBELCO SK130LC IV (MARK 4)
the " U " in the ser# means usa built at the plant in Calhoun, Georgia.
this was a Hertz Equipment Rental owned unit.
if you open the cover of the display and remove the plate a hidden digit would be revealled under showing whether or not the hour meter has clocked
over 10,000 hours.
its not a dynamic acera
generally the standard bucket would be a 36", 0.75 cu. yd.
if 42", 0.875 cu. yd.
usually a 42" or 48" would be a ditching bucket.
if you provide your e-mail address i can send you some more info.
hf_hydraulics@hotmail.com
cheers!
Adam.

Kobe130
04-24-2011, 10:39 PM
Thanks Adam. This might be good place to let other buyers know that some sellers will put false decals on a machine for sale to make it seem a better deal than it is. I have seen other mark 4 lookalikes with the same Dynamic Acera decals. No surprise I guess. That said my new toy has only 05547.6 hours on it seems low for a Hertz rental machine. I might say that Kobelco must build em pretty tough as I haven't found a single crack - yet although the bucket was a shambles (rentals probably take more of a beating). Kobelco sent me a manual for the SK120LC - it appears the same do you know what the difference was? Thanks for the info - much appreciated.

MR. KOBELCO
04-28-2011, 11:04 PM
for the gentleman that was looking for the electrical schematics on a kobelco 50sr compact exc, i must apologise.
you caught me at a very busy time, my time has been quite limited at work lately.
getting hard to keep my head straight - bit stressed i think too.
anyhow, i may have come across wrong with you, i was not meaning to blow you off...
that day i had way too many notes flying around the office i was afraid to lose anybody, notes, phone calls, it was a little much...
i just required a bit of help to help you...
i have been checking my e-mail for the info i told you to supply me, as of yet i have not gotten the e-mail.
so i just want to make sure you have it right, my best e-mail is " hf_hydraulics@hotmail.com "
please send your contact info., model of kobelco, serial number of machine ( PJ0#-##### ) as well as your symptoms or tech info you requested.
i'll be sure to get on it right away.
thanks and once again sorry.

Jantore
05-01-2011, 11:35 AM
Is there someone who knows a good place to buy parts to my kobleco sk75ur?

I have broken the cab glass...

wrench23
05-01-2011, 02:57 PM
hello new here question is i have a kobelco 150 stick cylender needs rebuilt replaced metal shavings in it causing it to bypass cost vs time and never have done it before dealer wants 6000 for new cyl and 500 for the kit

demo
05-01-2011, 08:18 PM
call macs jack service in point breeze, i believe there on putnum st. off of hamilton ave. they have done lots of cylinder work for me..
hope this helps

MR. KOBELCO
05-02-2011, 09:22 AM
Is there someone who knows a good place to buy parts to my kobleco sk75ur?

I have broken the cab glass...

is the sk75ur considered grey market in your region?
if not your nearest kobelco dealer should be able to quote you P&A
if you provide your serial number and the glass descriptions i can look up the part numbers
please include e-mail for i can scan parts cat pages and send along.
cheers!
hf_hydraulics@hotmail.com

ricko836
05-03-2011, 11:02 AM
Where is a good place to buy manuals for Kobelco's? Our manual seems to be lost for our SK130.

Also want to switch our controls to match our Komatsu 27MR, any diagrams handy for this kind of swap?

Also to shut off the machine we have to pull a clothes hanger out on the back of it to shut it off, haha, I know pathetic, but we bought it this way. How is it supposed to be?

Serial YPU2331

Thanks Ricky

shinigamix2x
05-03-2011, 01:27 PM
Kobelco SK210 (YQ08) Dynamic Acera
Need Info:
"Swing Brake" error on screen
What could be the cause/s for this problem?

Thanks,
Mohan.

MR. KOBELCO
05-03-2011, 05:25 PM
Kobelco SK210 (YQ08) Dynamic Acera
Need Info:
"Swing Brake" error on screen
What could be the cause/s for this problem?

Thanks,
Mohan.

hi,
swing brake solenoid ?
swing brake release ?

likely swing brake solenoid,
the swing brake solenoid has failed and will require replacing asap!
do not use machine for when you swing and dig the hyd swing motor brake will not be releasing and end up costing you more money.
the solenoid is located in behind the cab under the compartment floor panel. remove panel carefully as so it does not swing away from your control or you may possibly snap off any one of the pilot sensors underneath.
the solenoid is the one to the far end of the block nearest the center of the machine.
part# YB35V00006F1
new number # YN35V00051F1
cheers!

shinigamix2x
05-03-2011, 06:26 PM
Thank you so much Mr. Kobelco, your information is priceless as usual. Well i've taken your advice but i'm going to swap solenoid from another 210 that's down at the moment for tomorrow, i'll update on this post by then.

MR. KOBELCO
05-03-2011, 08:41 PM
Thank you so much Mr. Kobelco, your information is priceless as usual. Well i've taken your advice but i'm going to swap solenoid from another 210 that's down at the moment for tomorrow, i'll update on this post by then.

if both machines are of the same generation you can, but please note,
the swing brake solenoid is one of a kind unique to this circuit and is different from the other seven solenoids.
cheers!

MR. KOBELCO
05-03-2011, 09:04 PM
Where is a good place to buy manuals for Kobelco's? Our manual seems to be lost for our SK130.

Also want to switch our controls to match our Komatsu 27MR, any diagrams handy for this kind of swap?

Also to shut off the machine we have to pull a clothes hanger out on the back of it to shut it off, haha, I know pathetic, but we bought it this way. How is it supposed to be?

Serial YPU2331

Thanks Ricky

hi ricky,
i just e-mailed a file to you on switching controls from cat over to jd.
please take a digital pic of your fuel injection pump and surrounding area for visual of type of inj pump and throttle control.
some of the cummins engines came with rotary style fuel inj pumps others later with the inline fuel inj pump
the engine shut-down control to stop the fuel is handles different
cheers!

shinigamix2x
05-04-2011, 11:11 AM
if both machines are of the same generation you can, but please note,
the swing brake solenoid is one of a kind unique to this circuit and is different from the other seven solenoids.
cheers!

Yes sir, they're both identical (S/N, Year etc.) Well the bad solenoid have been replaced and the error screen is no more, now i'll have to purchase another solenoid for my other SK210 // "YN35V00051F1" - can you qoute me a price on this solenoid? I've checked the online catalog at the Kobelco website under GS Equipment - $671.49. Wow this thing is expensive. If u can supply at a cheaper price let me know.

MR. KOBELCO
05-04-2011, 12:12 PM
Yes sir, they're both identical (S/N, Year etc.) Well the bad solenoid have been replaced and the error screen is no more, now i'll have to purchase another solenoid for my other SK210 // "YN35V00051F1" - can you qoute me a price on this solenoid? I've checked the online catalog at the Kobelco website under GS Equipment - $671.49. Wow this thing is expensive. If u can supply at a cheaper price let me know.

hi,
that price sounds about right. they are not cheap, but do keep in mind that swing brake solenoid is constantly cycling many times a day when swinging and arming in while digging.
it is usually the first one to fail before the level lock solenoid does.
by the way the lever lock solenoid will not display a fault code, only one that does not, why was it was not programmmed to do so.
as far as price it would be cheaper for you to purchase from them.
cheers!

shinigamix2x
05-06-2011, 08:55 AM
Good day everyone,
Does anyone have any excavator training materials or manuals (pdf) to share, not for any partiular model but preferably the mid-size to full size excavators. I'm new at these things and only know the basic operations of the excavator. Would like to learn more in-depth of the components (RAM, Pumps, Undercarraige, etc.) Just want to educate myself to keep up with the company excavator operators and technicians.
Thanks,
Mohan.

Kobe130
05-07-2011, 01:17 AM
lso

Kobe130
05-07-2011, 01:28 AM
To the question about Kobelco manuals I recently ordered the operators and service manual for the SK130 lc from Kobelco America - they are still available and are not too bad for price ($60 and $240 respectively). You sometimes have to read between the lines as they appear to originally have written in Japanese.

One thing I could not find in the service manual was the slewing bearing tolerance for the SK 130lc. I wonder if anybody has this spec (Adam?)? This is an interesting question as the new replacement bearing from SKF is about $10,000. Pricey. Thx.

wrench23
05-08-2011, 02:50 PM
hello i need to buy a sk 150 stick cylender local dealer wants 6000 new looking for used or rebuilt will ship or pick up please help operations manager is not doing job so i have to spend weekends looking for my own parts any help will be helpful

grandkobelco
05-08-2011, 06:22 PM
Try cook eqiupment in Allegan MI. They have some part out machines in there yard. I was in there a few weeks ago and seen they had a few 150-IV in there. Sorey i dont have there phone # handy.

grandkobelco
05-08-2011, 06:26 PM
269-673-4545

digger104
05-11-2011, 08:48 PM
Mr. Kobelco: I would but when I try to post it always says that I'm not allowed.

MR. KOBELCO
05-11-2011, 09:04 PM
To the question about Kobelco manuals I recently ordered the operators and service manual for the SK130 lc from Kobelco America - they are still available and are not too bad for price ($60 and $240 respectively). You sometimes have to read between the lines as they appear to originally have written in Japanese.

One thing I could not find in the service manual was the slewing bearing tolerance for the SK 130lc. I wonder if anybody has this spec (Adam?)? This is an interesting question as the new replacement bearing from SKF is about $10,000. Pricey. Thx.

sorry for the delay...e-mail is sent - coming your way. finally found the specs was only in one mark iv shop manual. found that is missing in most others.
cheers!

MR. KOBELCO
05-11-2011, 09:06 PM
Mr. Kobelco: I would but when I try to post it always says that I'm not allowed.

hi, just send directly to my e-mail
hf_hydraulics@hotmail.com

thx

cheyenne
05-13-2011, 12:14 AM
I love this site & all the help it gives us all.......Thank You....Mr. Kobelco your a life saver........Does anyone know where I can get manuals for a SK045 coupe serial no. PY02469 I believe it to be a grey market machine....Thank You......Cheyenne......:Banghead

jack s
05-13-2011, 01:53 AM
Hi Mr.Kobelco,

Started the machine ( Kobelco SK330-8) with Hino J08 engine and found that there is error code on the machine such as B073, C013,C023 and F033. Can I know what the problem. Thank in advance....

shinigamix2x
05-13-2011, 10:53 AM
Good day everyone,
just thought i'd share this website i've come across while self tutoring myself on hydraulics and maintenance. " http://www.hydraulicsupermarket.com/technical.html "
Has some good points and info. Not major advance stuff but a good place to learn basics.
Best regards to you all.

BERNARD
05-13-2011, 02:52 PM
Hi Mr Kobelco
I wonder if you can help? Kobelco SK210-6 computer readout ROM DATA FAILURE CPU we are in Ireland and have most unhelpful dealers or perhaps they don't know or are being secretive or I am misjuding them!
Thank you for your help

DurtyMurty
05-13-2011, 06:25 PM
Hi Bernard - Greetings from....Ireland. Sent you a short email

Hi shinigamix2x - thanks for useful link

MR. KOBELCO
05-13-2011, 08:51 PM
Hi Mr Kobelco
I wonder if you can help? Kobelco SK210-6 computer readout ROM DATA FAILURE CPU we are in Ireland and have most unhelpful dealers or perhaps they don't know or are being secretive or I am misjuding them!
Thank you for your help

hi bernard,
please include your serial number for the machine.
and your e-mail address. send to hf_hydraulics@hotmail.com
i will kick back info on this code and how you might go about correcting.
thx
adam.

MR. KOBELCO
05-13-2011, 08:54 PM
Hi Mr.Kobelco,

Started the machine ( Kobelco SK330-8) with Hino J08 engine and found that there is error code on the machine such as B073, C013,C023 and F033. Can I know what the problem. Thank in advance....

hi jack,
please e-mail your serial number of machine at hf_hydraulics@hotmail.com
i will send you info on those codes.
thx
adam

MR. KOBELCO
05-13-2011, 08:59 PM
I love this site & all the help it gives us all.......Thank You....Mr. Kobelco your a life saver........Does anyone know where I can get manuals for a SK045 coupe serial no. PY02469 I believe it to be a grey market machine....Thank You......Cheyenne......:Banghead

hi cheyenne,
i can likely provide these.
there are various manuals available.
operators manual, parts catalog (most are on-line now)
https://webparts.pvassociates.net/cnh/webparts/main.php
shop service repair manual, servicemans handbook, engine manual (if seperate), etc...
please send me an e-mail and i'll look into whats available
my e-mail is " hf_hydraulics@hotmail.com "

MR. KOBELCO
05-13-2011, 09:04 PM
To the question about Kobelco manuals I recently ordered the operators and service manual for the SK130 lc from Kobelco America - they are still available and are not too bad for price ($60 and $240 respectively). You sometimes have to read between the lines as they appear to originally have written in Japanese.

One thing I could not find in the service manual was the slewing bearing tolerance for the SK 130lc. I wonder if anybody has this spec (Adam?)? This is an interesting question as the new replacement bearing from SKF is about $10,000. Pricey. Thx.

did you receive my e-mail?
if you did not please e-mail me at hf_hydraulics@hotmail.com and i will resend you this info on the swing bearing specs and tests.
cheers!

MR. KOBELCO
05-13-2011, 09:06 PM
Where is a good place to buy manuals for Kobelco's? Our manual seems to be lost for our SK130.

Also want to switch our controls to match our Komatsu 27MR, any diagrams handy for this kind of swap?

Also to shut off the machine we have to pull a clothes hanger out on the back of it to shut it off, haha, I know pathetic, but we bought it this way. How is it supposed to be?

Serial YPU2331

Thanks Ricky

hi ricky,
i can get you manuals, just advise which ones and i'll quote p&a.
thx.
adam.

MR. KOBELCO
05-13-2011, 09:25 PM
hello i need to buy a sk 150 stick cylender local dealer wants 6000 new looking for used or rebuilt will ship or pick up please help operations manager is not doing job so i have to spend weekends looking for my own parts any help will be helpful

hi wrench23,
when you say the stick cyl i assume you're talking about the one untop the highest point on boom that moves the arm in and out?
just asking not to insult for i have had a few owner operators call the bucket cyl the stick cyl for where it is mounted.
why i am responding, and this is for anyone with a mark 3 or mark 4 kobelco. actually any excavator kobelco or not.
anytime you have the stick (arm) cyl failure such as this you need to verify one very important piece.
the function of the arm regeneration circuit to make sure its working as it should.
if not, you will be removing the arm cyl to overhaul in a short 6 months or so, dumping your oil once again, flushing the hyd system, removing the main return lines off the main hyd control valve, back flushing the hyd oil cooler, changing all the hyd filters, return and pilot, etc...
a pain...
as you know, the arm cyl sits pretty much horizontal most times, if arm cyl sways or gets away from pump flow it caviates opening the anti-cav c/v in the arm port reliefs, drawing in hyd oil from the return side of the main hyd control valve and hyd oil cooler. so all those pieces you did not clean out thoroughly get back into the cyl and as it works scrapes up the bottom side of the barrel and it bypasses once again.
in the kobelco mark 3 & 4 models the pilot system manifold was updated to a parker hannafin manifold. says parker right on it.
the older original mainfold was no longer used. kobelco did not have to have redeisigned for there was only one error. the one check valve cartdrige, looks the same as the rest is used in a reverse flow spot so the o-ring and backup ring just needed to be reversed on the check valve. i call it check valve 3.
as seen in the parts catalog. install a pressure gauge and make sure the arm regen is getting its full intended pilot signal generated by the back pressure created by this check valve. also, if arm regen is working proper a simple check is...
at full rpm stretch the arm out, bucket full dump, and then bring rpm of engine to low idle, pull arm in hard, if arm stops at 90 and sways back and forth the arm regen is not okay.
needs corrections.
therefore, please verfify right away before running the newly rebuilt cyl for too long.
sorry rambling on, i am sure you all get the point i am making...
cheers!

zul69
05-17-2011, 05:56 AM
Hi Mr Kobelco and all friends,

New to this forum.

It is good to know that someone is very good on Kobelco is in here. I own a very old Kobelco, Kobelco SK03s and a very old Sumitomo 1000J. So far so good, and nothing went wrong. So now, I have a peace of mind knowing that there are people out here who are very conversant with Kobelco and excavators in general.

Thank you so much guys.

Zul
Malaysia

jayalath
05-17-2011, 07:00 AM
dear sir. i am eiectrical technican i need to electrical drawing for above meachine reaparing. pleace can you help me.thank you.

digger104
05-17-2011, 10:45 AM
two speed travel

Mr Kobelco: I just received my 1996 SK 120 LC 1V. I see that it has a new gauge set up. By that I mean where the fuel gauge and hour meter and so on is. My question is about the 2 speed travel. When I push the button the rabbit lights up but there is no change in speed. where should I start to look to correct this problem. Also I would like to reverse the boom and the stick control, can you help me out there. Many thanks. Bill.

LACHAU
05-17-2011, 01:27 PM
dear sir. i am eiectrical technican i need to electrical drawing for above meachine reaparing. pleace can you help me.thank you.
Dear Jayalath, You should tell us about Model and serial number of machine let us can send exactly the schematic to you.

zul69
05-17-2011, 03:10 PM
Hello All,

Just wonder whether anyone in here has got the repair manual for the Kobelco SK03s?

Thanks

MR. KOBELCO
05-17-2011, 04:19 PM
two speed travel

Mr Kobelco: I just received my 1996 SK 120 LC 1V. I see that it has a new gauge set up. By that I mean where the fuel gauge and hour meter and so on is. My question is about the 2 speed travel. When I push the button the rabbit lights up but there is no change in speed. where should I start to look to correct this problem. Also I would like to reverse the boom and the stick control, can you help me out there. Many thanks. Bill.

hi bill,
i can help. however, i do require your serial number. YP...?
e-mail me at " hf_hydraulics@hotmail.com "
cheers!

MR. KOBELCO
05-17-2011, 04:23 PM
dear sir. i am eiectrical technican i need to electrical drawing for above meachine reaparing. pleace can you help me.thank you.

hi, same i can likely provide you this but we require your serial number, YP...?

MR. KOBELCO
05-17-2011, 09:05 PM
Hi Mr.Kobelco,

Started the machine ( Kobelco SK330-8) with Hino J08 engine and found that there is error code on the machine such as B073, C013,C023 and F033. Can I know what the problem. Thank in advance....

here ye go,

B073 The swing pressure sensor is abnormal. Disconnection

C013 The P1 pump pressure sensor is abnormal. Disconnection

C023 The P2 pump pressure sensor is abnormal. Disconnection

F033 1-2 Travel Speed solenoid valve is abnormal. Disconnection - output transistor ON
breakdown

cheers!

shinigamix2x
05-24-2011, 08:00 AM
330LC: YC06 Dynamic Acera
P2 NEGA
PON-SENSOR
BOOM RAISE
BOOM DROP
!!!???? ... confusing error messages my operator told me to look up. Can anyone provide any assistance/ information
Thanks and best regards,
T.Mohan

MR. KOBELCO
05-24-2011, 07:31 PM
330LC: YC06 Dynamic Acera
P2 NEGA
PON-SENSOR
BOOM RAISE
BOOM DROP
!!!???? ... confusing error messages my operator told me to look up. Can anyone provide any assistance/ information
Thanks and best regards,
T.Mohan

hi, codes are likely the following;
P2 NEGA-CON SENSOR, is SE-27 -> on hyd pump 2, furthest from engine sensor is on the hyd pump regulator block, screws into a tee hyd fitting and a hyd pilot hose joins to this tee
if you are getting this code you must fix problem immediately!
could be a bad wire connection, wire grounding out, or failed sensor.
easiest to determine is to swap sensor for p-1 nega-con sensor SE-26 with the p-2 nega-con sensor SE-27
if fault code changes to P1 nega-con your sensor is bad and wiring is okay.
if remains p2 nega-con then check your wiring
BOOM RAISE PILOT SENSOR
BOOM LOWER PILOT SENSOR
these pilot sensors are located in the manifold behind the cab in the compartment with the air filter underneath the panel.
when removing panel be sure not to allow to drop and swing away from you or you will likely need more sensors for they can get hit and break.
boom sensors are SE-1 & SE-2.
good luck!
cheers!

Kobe130
05-29-2011, 03:36 AM
On the Cummins 4BT the fuel shutoff solenoid has a red, black and white wire. Does anybody know which is for the pull coil and the hold coil? Is it possible to confirm by taking a resistance reading? Least resistance is highest amperage for pull-in coil? I believe black is ground. I ask because I was so disgusted with the OEM wiring in my recently received SK130 I ripped it all out so I could start from scratch with minimal circuits to avoid problems like electrical fires and bewildering electrical non-functioning functions. Functions like safely operating and stopping engine, lever lock-out and two speed travel. What's with all that wiring - the SK 130 is a great machine but it's not the space shuttle?

Also after pouring over the Kobelco service manual I can't positively find the add-on valve which controls the "Extra and Breaker" function Kobelco speaks of, although my Sk130 has the breaker and nibbler option (thanks for the page on explaining the valve settings Adam, I followed them religiously). I wonder if anybody has a picture of the add-on valve they could post so I can identify it on the machine. Could it be the dinky little thing on the control block with 2 wires running to nowhere? I ask because I want to run a thumb continuously without reaching for the (non-existent!) switch which should be there - but isn't. What I would like to do is just permanently have the floor pilot valve "on" so the thumb is just another regular function by allowing continuous flow bypassing the add-on valve.

Thanks guys - I appreciate any comments.

Brian in Winnipeg

willie59
05-29-2011, 09:02 AM
Black is ground, Red is hold, White is pull.

What are you going to connect the white wire to now that the wiring has been pulled out?

MR. KOBELCO
05-29-2011, 09:26 PM
On the Cummins 4BT the fuel shutoff solenoid has a red, black and white wire. Does anybody know which is for the pull coil and the hold coil? Is it possible to confirm by taking a resistance reading? Least resistance is highest amperage for pull-in coil? I believe black is ground. I ask because I was so disgusted with the OEM wiring in my recently received SK130 I ripped it all out so I could start from scratch with minimal circuits to avoid problems like electrical fires and bewildering electrical non-functioning functions. Functions like safely operating and stopping engine, lever lock-out and two speed travel. What's with all that wiring - the SK 130 is a great machine but it's not the space shuttle?

Also after pouring over the Kobelco service manual I can't positively find the add-on valve which controls the "Extra and Breaker" function Kobelco speaks of, although my Sk130 has the breaker and nibbler option (thanks for the page on explaining the valve settings Adam, I followed them religiously). I wonder if anybody has a picture of the add-on valve they could post so I can identify it on the machine. Could it be the dinky little thing on the control block with 2 wires running to nowhere? I ask because I want to run a thumb continuously without reaching for the (non-existent!) switch which should be there - but isn't. What I would like to do is just permanently have the floor pilot valve "on" so the thumb is just another regular function by allowing continuous flow bypassing the add-on valve.

Thanks guys - I appreciate any comments.

Brian in Winnipeg

hi,
if you look at the on-line parts cat under the nibbler/breaker sections it'll give you the best idea where all the valves are that pertain to the aux hyd.

https://webparts.pvassociates.net/cnh/webparts/main.php

cheers!

juniorengineer
05-29-2011, 10:41 PM
Hi Mr. Kebelco,

I am here looking for a part catalog of the extracator type: SK 1350, which is an old version of the Kebelco series. Would you mind helping me for such kind of catalog if you have it in your hand. I need it for a urgent repair. Thanks for your kindly help.
You can reach me with my email: juniorengineerinudl@yahoo.com.hk

Kobe130
05-30-2011, 03:10 AM
Thanks Willie59 and Mr K, I'll connect the fuel solenoid pull lead to the new starter solenoid which is only energized under "start" of course, and the hold lead to the ignition switch "run" for continuous operation. Much appreciated! I understand if the pull lead is connected continuously it'll just burn out the pull in coil in short order. Wouldn't want that. BTW my SK130 came from Woodlawn TN - your neck of the woods. Wonder why Kobelco puts so much of the wiring underneath where it collects every bit of oily debris - maybe cooler there. I guess it doesn't get baked like it does in the engine bay. Thank the Lord for power washers.

rippy154
06-02-2011, 11:16 AM
Good Afternoon

I have a Kobelco sk300lc serial # ycu0670.. It has been sitting for about 6 months due to no work for it but I have a job to do with it so I went and put new batteries in it walked it into the garage to check it over and noticed the battery warning light is on in the gauge cluster. The batteries are brand new and passed a load test and the voltage checked at the battieries and the battery post on the alternator was 27.8

Any ideas

Thanks Stephen

MR. KOBELCO
06-02-2011, 06:17 PM
Good Afternoon

I have a Kobelco sk300lc serial # ycu0670.. It has been sitting for about 6 months due to no work for it but I have a job to do with it so I went and put new batteries in it walked it into the garage to check it over and noticed the battery warning light is on in the gauge cluster. The batteries are brand new and passed a load test and the voltage checked at the battieries and the battery post on the alternator was 27.8

Any ideas

Thanks Stephen

hi,
the first item i would check is at the alternator, there is a white 18 gauge wire with pink stripe attached to one of the posts.
make sure you read 24+ vdc at that point. this wire joins to the voltage safety relay and hour meter and the c-2 controller to sense charging.
if the c-2 does not sense charging the fault code will display.
if you e-mail me at hf_hydraulics@hotmail.com i can send you the proper wiring schematic for your machine with the cummins engine.
cheers!

rippy154
06-03-2011, 10:17 AM
I wouldn't have thought a "new" alternator that is only 6 months old would have failed but I guess this is what happens when you skip over the basic's. It is usally always something way more complicated when I have an electrical issue on one of my machines but I lucked out this time.

The R post only had 11 Volts (which is the location of the wire you spoke of) so the controller wasn't seeing enough voltage even though the alternator was putting out 27.8 volts. I had a rebuilt alternator on the shelf and now we are up and running

Thanks for jarring my head to go back to the basics instead of assuming I would be replacing safty relays, controllers or the display. LOL

I have emailed you becuase I would still like a copy of the schematic since mine is in real tough shape

thanks Stephen

cheyenne
06-04-2011, 12:42 AM
I have a Kobelco SK045 Coupe & the throttle cable keeps seizing up. I think it might be loaded with gunk since I sprayed WD40 down the cable to make it slide better last year. I think I did a NO NO. Is it possible or advisable to pull the cable out of the sheath to pull out the gunk & blow it out with air & run a long piece of copper wire down the sheath with a gun barrel patch swab attached, This would also tell me if the cable is kinked, which I don't think it is because I can get it to move with some force.........Thank You.......Cheyenne

bigjack
06-05-2011, 01:01 AM
Hi, I have a Kobelco SK%) UR mark 2. I have had the starter motor rebuilt professionally and I have put a new starter relay (under the seat) and it was starting ok after that but today it will not start at all. I turn the key and get a single click and nothing. I have checked all of the connections and they are tight. Am I overlooking something? I would really appreciate some assistance with this problem. Thanks, John

bigjack
06-05-2011, 01:03 AM
That should be SK50UR. I am also looking for a repair manual in English if anyone has an idea of where I can purchase one i would be eternally grateful.

MR. KOBELCO
06-05-2011, 08:12 AM
That should be SK50UR. I am also looking for a repair manual in English if anyone has an idea of where I can purchase one i would be eternally grateful.

hi,
you will need to supply the serial number of the machine. model is never good enough.
as far as repair manuals, i have been told for these UR models (considered grey market machines in my region)
they will not sell me a repair manual.
please e-mail me your ser# and the engine model and ser#
and i'll try to get you some info.
cheers!

MR. KOBELCO
06-05-2011, 08:24 AM
Hi, I have a Kobelco SK%) UR mark 2. I have had the starter motor rebuilt professionally and I have put a new starter relay (under the seat) and it was starting ok after that but today it will not start at all. I turn the key and get a single click and nothing. I have checked all of the connections and they are tight. Am I overlooking something? I would really appreciate some assistance with this problem. Thanks, John

hi again,

sorry my e-mail is " hf_hydraulics@hotmail.com "

checks
- load test the battery - guessing 12 volt system
- most of the older ur compact exc use a generator instead of an alternator
using a digital multi-tester check the charging system - 14 vdc ?
- also, check your battery cables make sure a clean tight contact and good ground cable
as well as a good ground connection for the engine ground

as far as manuals
the best thing going for these models is to obtain a parts catalog and operators manual in english
most operators manuals contain the electrical schematic (if you are lucky)
cheers!
adam

MR. KOBELCO
06-05-2011, 08:27 AM
I have a Kobelco SK045 Coupe & the throttle cable keeps seizing up. I think it might be loaded with gunk since I sprayed WD40 down the cable to make it slide better last year. I think I did a NO NO. Is it possible or advisable to pull the cable out of the sheath to pull out the gunk & blow it out with air & run a long piece of copper wire down the sheath with a gun barrel patch swab attached, This would also tell me if the cable is kinked, which I don't think it is because I can get it to move with some force.........Thank You.......Cheyenne

hi,
did you get the pricing and availability on the manuals you were looking for ?
once you purchase the parts manual we can always quote this cable.
you never know for the hassles it maybe cheaper to replace the cable with a new one.
cheers!
adam

MPN
06-05-2011, 03:32 PM
Hi,I have kobelco sk200 mkIII YQ-01550 12000hrs on it.This is my first excavator and i have some problem with it.Engine will stall down,it must be on full rpm and still stalls if use boom or arm,when warm almost any function cause stalling.I have measured both proportional valves on hyd pump both 15 ohm.and voltage 23.6v(closer engine) and 22.6v(end of pump)both valves did not have lock nuts and other adjust screw was almost bottom.I have checked wiring thats ok,change all filters, checked fuel line twice(there was 2 plastic filters on banjo bolts), turbo ok, done a-adjustment,adjust engine valve clearance,hyd. pump rebuilt 150hrs ago i heard?,digging modes works but auto acceleration not.On maintenance screen pump reading is 100 - 330 when power on,should be 0??,pilot pressure ok.When engine is cold it doesnt start well,but when warm,no problem.Can it be fuel feed pump?because when engine stall there will not be any black smoke?Any ideas what i should do next? Thanks,Miska

MR. KOBELCO
06-06-2011, 11:36 AM
Hi,I have kobelco sk200 mkIII YQ-01550 12000hrs on it.This is my first excavator and i have some problem with it.Engine will stall down,it must be on full rpm and still stalls if use boom or arm,when warm almost any function cause stalling.I have measured both proportional valves on hyd pump both 15 ohm.and voltage 23.6v(closer engine) and 22.6v(end of pump)both valves did not have lock nuts and other adjust screw was almost bottom.I have checked wiring thats ok,change all filters, checked fuel line twice(there was 2 plastic filters on banjo bolts), turbo ok, done a-adjustment,adjust engine valve clearance,hyd. pump rebuilt 150hrs ago i heard?,digging modes works but auto acceleration not.On maintenance screen pump reading is 100 - 330 when power on,should be 0??,pilot pressure ok.When engine is cold it doesnt start well,but when warm,no problem.Can it be fuel feed pump?because when engine stall there will not be any black smoke?Any ideas what i should do next? Thanks,Miska

hi miska,
as far as the one solenoid screw on the hyd pump it is possible that it was turned in to fully cut the hyd pump flow back due to a weak engine as so not to make the stalling as noticible.
my suggestion is to have the fuel injection pump sent out for overhauling, recalibration to a reputable shop and have them also give you a full report on their findings.
that is a starting point.
once you get it back let me know their findings and there is setups that are going to be required - prechecks before doing the A adjustment.
hf_hydraulics@hotmail.com
cheers!
adam

heymccall
06-06-2011, 12:46 PM
I send all of my cylinders to HYMAC (cleveland brothers). Even my Kobelcos, and my electrocuted Komatsu cylinders. Free estimates and shuttle service. Call any branch and ask for HYMAC, then press the right number for the cylinder shop and talk to Mike.

I used to use quality hydraulics outta Bridgeport WV, BUT, I had a few stick cylinder aftermarket seal issues (air pocket related cavitation). I probably have 20 or so of their rebuilts still in service. APEX in Phillipsburg can do it, too, but I've had turnaround time issues (enough that I won't go back).

Do you have the "dead cylinder"?



Sorry, but I seem to have posted this too late...

MPN
06-06-2011, 03:10 PM
hi miska,
as far as the one solenoid screw on the hyd pump it is possible that it was turned in to fully cut the hyd pump flow back due to a weak engine as so not to make the stalling as noticible.
my suggestion is to have the fuel injection pump sent out for overhauling, recalibration to a reputable shop and have them also give you a full report on their findings.
that is a starting point.
once you get it back let me know their findings and there is setups that are going to be required - prechecks before doing the A adjustment.
hf_hydraulics@hotmail.com
cheers!
adam
Thanks! I allready talk today with injection pump expert,he said we should first check injectors and overhaul if needed,after that check the injection pump.I notice little leak bethween regulator2 and hyd pump,o-rings i think? I will let you know what we find.
Miska

cheyenne
06-11-2011, 12:22 PM
hi,
did you get the pricing and availability on the manuals you were looking for ?
once you purchase the parts manual we can always quote this cable.
you never know for the hassles it maybe cheaper to replace the cable with a new one.
cheers!
adam

I received everything you sent. thank you very much. Will be in touch.......Cheyenne

ron coleman
06-21-2011, 04:17 AM
hi mr kobelco,
i own a kobelco sk 170-8 the fuel injection pump went out, i had it rebuilt and installed it back on the machine, it started up, and ideled but will not idele up, the monitor keeps giving me codes EO13 EO23 & GO13 not sure what they mean. any ideas thanks Ron

lakeside ex
06-21-2011, 06:23 AM
Hi,

I am trying to start up my excavation business and have a 2002 kebelco sk75ur nuckle and the swing motor is very slow, but works fine with the track peddle pushed in a bit but then everything else works slow. I have replaced the O-Ring in the swing brake piston, new swing brake soildnoid, pumps have been done up and I still cant work out what the probelm is.

Would really appreaciate some advice.

Thanks.

MR. KOBELCO
06-21-2011, 09:06 AM
Hi,

I am trying to start up my excavation business and have a 2002 kebelco sk75ur nuckle and the swing motor is very slow, but works fine with the track peddle pushed in a bit but then everything else works slow. I have replaced the O-Ring in the swing brake piston, new swing brake soildnoid, pumps have been done up and I still cant work out what the probelm is.

Would really appreaciate some advice.

Thanks.

Hi,
please provide your serial number of unit.
YR-##### ?
thanks.

MR. KOBELCO
06-21-2011, 09:10 AM
hi mr kobelco,
i own a kobelco sk 170-8 the fuel injection pump went out, i had it rebuilt and installed it back on the machine, it started up, and ideled but will not idele up, the monitor keeps giving me codes EO13 EO23 & GO13 not sure what they mean. any ideas thanks Ron

hi ron,
please provide your serial number for the machine.
YM##-U####.
thanks.

shiler00
06-24-2011, 01:01 PM
Kobelco k-60, LE18355
Hello we needed a thumb added to our unit. had a local mechanic install it. now whenever we activate the thumb we loose all hyd power to the left track. mechanic pretty much told us we were on our own. we would like to know the correct place to tap in to the hyd system so everytning will work correctly.
thanks for any help you can provide. shiler00

shiler00
06-24-2011, 01:11 PM
Kobelco k-60, LE18355
Hello we needed a thumb added to our unit. had a local mechanic install it. now, whenever we activate the thumb we loose all hyd power to the left track. mechanic pretty much told us we were on our own. we would like to know the correct place to tap in to the hyd system so everytning will work correctly.
thanks for any help you can provide. shiler00
new to this so please let me know if i'm posting wrong.

shiler00
06-24-2011, 01:17 PM
Kobelco k-60, LE18355
Hello we needed a thumb added to our unit. had a local mechanic install it. now whenever we activate the thumb we loose all hyd power to the left track. mechanic pretty much told us we were on our own. we would like to know the correct place to tap in to the hyd system so everytning will work correctly.
thanks for any help you can provide. shiler00

kenny miller
06-24-2011, 01:23 PM
kobelco mark4 sk 115 dz ser lpu 5040

hi mr kobelco we where running the machine last sunday and she just stopped its blowing the top right fuse in the fuse box have tried to find manual no luck finding one had a macanick look at it said no wiring digram no help pannel dud light up first time new fuse replaced now no litted pannel just keeps blowing fuse will do what ever yan say to do novice thaks kenny

MR. KOBELCO
06-24-2011, 09:40 PM
kobelco mark4 sk 115 dz ser lpu 5040

hi mr kobelco we where running the machine last sunday and she just stopped its blowing the top right fuse in the fuse box have tried to find manual no luck finding one had a macanick look at it said no wiring digram no help pannel dud light up first time new fuse replaced now no litted pannel just keeps blowing fuse will do what ever yan say to do novice thaks kenny

hi,
please e-mail me at " hf_hydraulics@hotmail.com "
my reply will include the elec schem, etc...
to aid in troubleshooting your shorted wire to ground or elec component
be sure to use a digital multi-tester not a test light when checking your elec system.
cheers!
adam

MR. KOBELCO
06-24-2011, 09:48 PM
Kobelco k-60, LE18355
Hello we needed a thumb added to our unit. had a local mechanic install it. now, whenever we activate the thumb we loose all hyd power to the left track. mechanic pretty much told us we were on our own. we would like to know the correct place to tap in to the hyd system so everytning will work correctly.
thanks for any help you can provide. shiler00
new to this so please let me know if i'm posting wrong.

hi,
e-mail me at " hf_hydraulics@hotmail.com "
i can send you info and help you correct the wrong hookups.
please also attach digital pictures of your install so i can follow where it went astray
cheers!
adam

MR. KOBELCO
06-24-2011, 09:56 PM
hi mr kobelco,
i own a kobelco sk 170-8 the fuel injection pump went out, i had it rebuilt and installed it back on the machine, it started up, and ideled but will not idele up, the monitor keeps giving me codes EO13 EO23 & GO13 not sure what they mean. any ideas thanks Ron

E013 = The P1 pump proportion valve is abnormal. Disconnection
E023 = The P2 pump proportion valve is abnormal. Disconnection
G013 = The current of the stepping motor is abnormal. Disconnection - output transistor OFF
breakdown

hi ron,
i require your ser# as i mentioned earlier.
also it looks like you have wires loose and you need to do what is called an " A/B/C " adjustment to properly setup the engine throttle stepper motor.
this procedure i can provide and you will want to talk directly with me to review leading over the phone and tweaking the setups on your machine.
when done your machine will most definitely run better.
cheers!
adam.
my e-mail is " hf_hydraulics@hotmail.com "

shinigamix2x
06-25-2011, 12:12 AM
E013 = The P1 pump proportion valve is abnormal. Disconnection
E023 = The P2 pump proportion valve is abnormal. Disconnection
G013 = The current of the stepping motor is abnormal. Disconnection - output transistor OFF
breakdown

hi ron,
i require your ser# as i mentioned earlier.
also it looks like you have wires loose and you need to do what is called an " A/B/C " adjustment to properly setup the engine throttle stepper motor.
this procedure i can provide and you will want to talk directly with me to review leading over the phone and tweaking the setups on your machine.
when done your machine will most definitely run better.
cheers!
adam.
my e-mail is " hf_hydraulics@hotmail.com "

I've a similiar problem on a SK330LC (YC06) at work. Right now that excavator is down for repairs, radiator and oil coolers are out for repairs, Engine Manifold need repairs (if anyone can supply a Mitsu 6D34 Turbo Manifold let me know), also before taking down the machine we had error codes like these, the engine throttle stepper motor is out the machine as well, most we did on it so far was cleaned it. The mecanic said we need to replace but i get from this post that it's obviously some wiring issues. Well please do share any information about this "A/B/C/" Adjustment.

Thank you and best regards,
Taradath Mohan

MR. KOBELCO
06-25-2011, 02:29 PM
I've a similiar problem on a SK330LC (YC06) at work. Right now that excavator is down for repairs, radiator and oil coolers are out for repairs, Engine Manifold need repairs (if anyone can supply a Mitsu 6D34 Turbo Manifold let me know), also before taking down the machine we had error codes like these, the engine throttle stepper motor is out the machine as well, most we did on it so far was cleaned it. The mecanic said we need to replace but i get from this post that it's obviously some wiring issues. Well please do share any information about this "A/B/C/" Adjustment.

Thank you and best regards,
Taradath Mohan

hi,
if you can e-mail me with your serial number i can likely quote you the exhaust manifold and stepper motor and provide you info on the adjustments.
e-mail: hf_hydraulics@hotmail.com
cheers!

shinigamix2x
06-27-2011, 09:54 AM
Good Morning Mr. Kobelco,
Email sent.

skaggo
06-28-2011, 10:55 AM
Hi!

This seems like the right place to ask.

Today our sk75ur (yr35v0000fi) wouldnt engage the hydraulics accept the blade, and the console reads "no meddl disengaged".

It starts fine but the engine stays att idle and the safe switch in the arm-rest is working.

MR. KOBELCO
06-29-2011, 12:20 PM
Hi!

This seems like the right place to ask.

Today our sk75ur (yr35v0000fi) wouldnt engage the hydraulics accept the blade, and the console reads "no meddl disengaged".

It starts fine but the engine stays att idle and the safe switch in the arm-rest is working.


hi,
i am going to need 2 things from you,...
1 - ser# of machine. the number you gave appears to be an incomplete part number ?
2 - digital picture of your cab monitor display and if you remove the console behind the seat a picture of the computers and relays layout.
reason being we need to switch your language to english so i can translate your fault code.
in the meantime, check behind seat once you remove the console you should see 2 chrome toggle switches
one will be swing brake release switch
the other kpss release switch
both should be NOT in the release position.
if one is switch to engage.
my e-mail: hf_hydraulics@hotmail.com
cheers!
adam

skaggo
07-01-2011, 04:03 AM
hi,
i am going to need 2 things from you,...
1 - ser# of machine. the number you gave appears to be an incomplete part number ?
2 - digital picture of your cab monitor display and if you remove the console behind the seat a picture of the computers and relays layout.
reason being we need to switch your language to english so i can translate your fault code.
in the meantime, check behind seat once you remove the console you should see 2 chrome toggle switches
one will be swing brake release switch
the other kpss release switch
both should be NOT in the release position.
if one is switch to engage.
my e-mail: hf_hydraulics@hotmail.com
cheers!
adam

First af all thanks.

It seems that the owners son tryed to override the safety by flicking the switches under the seat and left one in the wrong possition, To his defence all the writing on them is in chinese accept kpss. So that strange error message is gone now but its still doesent engage the hydraulics.

I havent found a camera to take som photos yeat, but i managed to get the right serial (i hope): YR04-04815

I did found out that the servo pressure (i think at least its the pilot pressure and it comes from the last row of pumps at the very last connection) is about 35bar and strangely it doesent get past what looks like an backflow-valve? mounted right after the pump. After the valve it splits into two, one goes into the big pump and the other runs undet the cab into a alu-bridge with solenoids.

So my question, what should the pressure be on the pilot, and is it only a backflow-valve?

MR. KOBELCO
07-01-2011, 10:28 PM
First af all thanks.

It seems that the owners son tryed to override the safety by flicking the switches under the seat and left one in the wrong possition, To his defence all the writing on them is in chinese accept kpss. So that strange error message is gone now but its still doesent engage the hydraulics.

I havent found a camera to take som photos yeat, but i managed to get the right serial (i hope): YR04-04815

I did found out that the servo pressure (i think at least its the pilot pressure and it comes from the last row of pumps at the very last connection) is about 35bar and strangely it doesent get past what looks like an backflow-valve? mounted right after the pump. After the valve it splits into two, one goes into the big pump and the other runs undet the cab into a alu-bridge with solenoids.

So my question, what should the pressure be on the pilot, and is it only a backflow-valve?

hi,
this sounds similar to our 70sr models.
the pilot pump section on the end of the main pump, pilot pump outlet pilot hose will join to an inline pilot filter screen long hyd fitting.
every now and then you need to disassemble and back flush to clean screen of any debris/blockage.
the other end will join to a solenoid manifold and usually this block will also contain the pilot relief.
sun hydraulic cartridge valve.
pilot pressure = 710 - 780 psi
it could be your solenoid that opens oil flow to the joysticks etc... has burnt out.
simply check the coil for resistance - ohm meter - digital multi-tester.
in most models there is no fault code for the pilot lever lock solenoid.
cheers!

skaggo
07-05-2011, 07:32 AM
hi,
this sounds similar to our 70sr models.
the pilot pump section on the end of the main pump, pilot pump outlet pilot hose will join to an inline pilot filter screen long hyd fitting.
every now and then you need to disassemble and back flush to clean screen of any debris/blockage.
the other end will join to a solenoid manifold and usually this block will also contain the pilot relief.
sun hydraulic cartridge valve.
pilot pressure = 710 - 780 psi
it could be your solenoid that opens oil flow to the joysticks etc... has burnt out.
simply check the coil for resistance - ohm meter - digital multi-tester.
in most models there is no fault code for the pilot lever lock solenoid.
cheers!

Thanks, it was the coil, so now i need a source for one. They are not the same as on the sk70 as they lack the bult and nut on the head of the coil, do you know anywhere i could get one?

MR. KOBELCO
07-05-2011, 09:56 AM
Thanks, it was the coil, so now i need a source for one. They are not the same as on the sk70 as they lack the bult and nut on the head of the coil, do you know anywhere i could get one?

hi,
please snap a picture of the coil/valve and provide numbers off the coil.
numbers may be on the side of the spot where the elec harness connector joins.
adam

bhp
07-06-2011, 10:49 PM
Hi. I have a kobelco sk480 2002, been having what appears to be a fuel problem for the last year or so. It seems to be worse when the machine gets warm. It was 85 deg. Today. Runs fine for a few hours or sometimes even days. When it acts up it loose power cant hardly even get bucket out of hole. My locl dealer thought it was the injection pump, put a rebuilt on ran ok for aprox. 100 hrs now doing same thing ,have changed filters many times ,changed 2 fuel lines kind of at a loss. Dealer has had laptop on several times tried changing engine controler, any ideas

MR. KOBELCO
07-06-2011, 11:09 PM
Hi. I have a kobelco sk480 2002, been having what appears to be a fuel problem for the last year or so. It seems to be worse when the machine gets warm. It was 85 deg. Today. Runs fine for a few hours or sometimes even days. When it acts up it loose power cant hardly even get bucket out of hole. My locl dealer thought it was the injection pump, put a rebuilt on ran ok for aprox. 100 hrs now doing same thing ,have changed filters many times ,changed 2 fuel lines kind of at a loss. Dealer has had laptop on several times tried changing engine controler, any ideas

hi,
i have been sent out to quebec to correct, fix and tune-up two sk480's for another dealership with my kobelco rep.
i would suggest that you call me at work or home.
i can get you sorted. the steps i take are logical and must be done in order.
with a bit of patience and time over the phone i can either lead you or your dealer (as long as they follow what i say to do)
the dealership i work for has only a kobelco line, full line.
after awhile you get to know the machines quite well.
if the dealer is going to do this they may actually pick up things that are not general knowledge in printed tech manuals.
some of which are not even stated at all and could be the reason they are not isolating your few problems.
the end result would be worth it for you.
if you call me at work my boss is charging $ 3.00 per minute for my services.
do not worry i do not drag things out.
i give items you will have to check and report back to me.
you are my eyes.
i require a few things first.
the serial number and info to how the machine is set up.
and what version of program the dealer put in.
call me from cell phone when you are sitting in the cab seat.
work# 905-888-9070
home# 905-697-9626
e-mail: hf_hydraulics@hotmail.com
cheers!
adam

bhp
07-06-2011, 11:22 PM
Thanks I Will Check with you tomorow when near machine. What time is where you are at right now ?

CON10DOR
07-11-2011, 10:43 AM
I have a kobelco md 180 excavator. Anyone know how to check the swing gear oil and where to put it in. I've been fooling with equipment most of my life and i cannot find it the local dealer couldnt even tell me.. I put a swing motor bearing in and i could see the oil i should have added some then.

MR. KOBELCO
07-11-2011, 02:00 PM
I have a kobelco md 180 excavator. Anyone know how to check the swing gear oil and where to put it in. I've been fooling with equipment most of my life and i cannot find it the local dealer couldnt even tell me.. I put a swing motor bearing in and i could see the oil i should have added some then.

hi,
usually the swing tower is comprised of two units.
the upper part is a hydraulic motor, which then drives the lower portion - gear reduction.
generally the lower portion will have a dip stick for checking the 80w-90 gear oil level
and following around 180 from tube is an allen plug to remove as filling port.
drain is underneath jets out towards the engine.
hyd oil is shell TELLUS " T " 46
cheers!
adam

MR. KOBELCO
07-11-2011, 07:31 PM
I have a kobelco md 180 excavator. Anyone know how to check the swing gear oil and where to put it in. I've been fooling with equipment most of my life and i cannot find it the local dealer couldnt even tell me.. I put a swing motor bearing in and i could see the oil i should have added some then.

if you check out our website, there is a link to online customers parts catalog on the bottom of most pages.
once you access the catalog type md180 in the search to locate the parts cat for your machine.
the mitsi engine parts cat are seperate from the main machine.
refer to your mitsi model 6d##
cheers!
adam.
http://www.robertgreenequipment.com/

ricko836
07-14-2011, 03:17 PM
hi ricky,
i just e-mailed a file to you on switching controls from cat over to jd.
please take a digital pic of your fuel injection pump and surrounding area for visual of type of inj pump and throttle control.
some of the cummins engines came with rotary style fuel inj pumps others later with the inline fuel inj pump
the engine shut-down control to stop the fuel is handles different
cheers!

thank you for that file! here are the pictures of my pump. also need to to pm me or email me a price with shipping for all 3 manuals, for my machine, sk130IV, owners manual, parts catalog and service manual. all 3.


part circled in red is what i currently use to shut it off
http://i22.photobucket.com/albums/b325/ricko21/f370529c.jpg

http://i22.photobucket.com/albums/b325/ricko21/61b6d768.jpg

hitachi daft
07-14-2011, 05:39 PM
SKAGGO check the coil on the two speed tracking is not the same had the same problem on a sk 70 and just swapped the coils over to get the machine going but you will loss high speed tracking

MR. KOBELCO
07-15-2011, 11:42 AM
KOBELCO PARTS MANUAL AVAILABLE ONLINE @
https://webparts.pvassociates.net/cnh/launch.php?DealerID=PVA-MQ6YB-J8F2&DataSet=001KOB&LanguageID=ENU

Kobe130
07-21-2011, 12:34 PM
In the battery compartment on this machine and others such as the SK150 and the Sk200/220 there is a piece of pipe about 5 inches long vertically welded to a bracket on the frame. It has a 3/4 by 3/4 inch notch out of the top of it. I'm sure that everybody who owns a Kobelco knows what this little thing is for except moi. Would somebody be so kind as to let me know what Kobelco had in mind when they tacked this thing to the machine? Does anybody use it for anything useful? Thanks in advance.

digger104
07-21-2011, 06:37 PM
I'm pretty sure this is for a grease gun.

Stone Farmer
07-25-2011, 03:47 PM
Hello all-

Company I work for has a SK150LC (ser #YMU2126) that was bought from a rental company a few years ago. I've just come on board and am trying to play catch up on some loose ends regarding maintenance/service histories, etc...this unit is showing a code "25 s/m fail" and surges when first started, if throttled down then shut off and restarted it will usually be back to running what has been considered normally. Any help diagnosing and/or pointing me in the right direction would be awesome. I appreciate having such an awesome resource at my fingertips while out in the field. Thanks in advance.

MR. KOBELCO
07-25-2011, 05:21 PM
Hello all-

Company I work for has a SK150LC (ser #YMU2126) that was bought from a rental company a few years ago. I've just come on board and am trying to play catch up on some loose ends regarding maintenance/service histories, etc...this unit is showing a code "25 s/m fail" and surges when first started, if throttled down then shut off and restarted it will usually be back to running what has been considered normally. Any help diagnosing and/or pointing me in the right direction would be awesome. I appreciate having such an awesome resource at my fingertips while out in the field. Thanks in advance.

hi,
at first glance i would have to say that the stepper motor controlling the throttle is acting up and requires replacing.
whatever you do in no way move the stepper motor or linkages when your key is on and machine powered.
you will fry the stepper motor driver chip in the c-1 mechatrocontroller!
if you e-mail me your full details at " hf_hydraulics@hotmail.com "
we can quote you all the necessary parts, A adjust harness and provide the correcty procedure to get you fixed up.
cheers!

Stone Farmer
07-25-2011, 08:07 PM
Email sent. Thanks for the help!

tehlab
08-03-2011, 05:01 AM
MR. KOBELCO , many thanks for help with repairs SK330NLC

lakeland.705
08-09-2011, 09:25 PM
hi mr.kobelco i have a wiring nightmare in a k905lc11 excavator it had a fire in the ignition in the control panel and burnt some wires off to starter would there be a diagram available for this machine. not sure where to find serial # thanks in advance lakeland.705

MPN
08-10-2011, 02:24 PM
Hi,I have kobelco sk200 mkIII YQ-01550 12000hrs on it.This is my first excavator and i have some problem with it.Engine will stall down,it must be on full rpm and still stalls if use boom or arm,when warm almost any function cause stalling.I have measured both proportional valves on hyd pump both 15 ohm.and voltage 23.6v(closer engine) and 22.6v(end of pump)both valves did not have lock nuts and other adjust screw was almost bottom.I have checked wiring thats ok,change all filters, checked fuel line twice(there was 2 plastic filters on banjo bolts), turbo ok, done a-adjustment,adjust engine valve clearance,hyd. pump rebuilt 150hrs ago i heard?,digging modes works but auto acceleration not.On maintenance screen pump reading is 100 - 330 when power on,should be 0??,pilot pressure ok.When engine is cold it doesnt start well,but when warm,no problem.Can it be fuel feed pump?because when engine stall there will not be any black smoke?Any ideas what i should do next? Thanks,Miska
Hi!This problem is solved,thanks to Adam for help!After that i have replaced sealings to swing reduction gear/swivel joint and regulator O-rings.Today finally start digging,about 15 minutes and pilot pressure drops,swing doesnt work.I measured pressures with 2000rpm 32 bar when cold,drops to 22bar when warm.So it must be pilot pressure gear pump?Or can it be something else,air in system,full moon?

MR. KOBELCO
08-10-2011, 07:12 PM
Hi!This problem is solved,thanks to Adam for help!After that i have replaced sealings to swing reduction gear/swivel joint and regulator O-rings.Today finally start digging,about 15 minutes and pilot pressure drops,swing doesnt work.I measured pressures with 2000rpm 32 bar when cold,drops to 22bar when warm.So it must be pilot pressure gear pump?Or can it be something else,air in system,full moon?

hi,
likely the pilot pump, is the pilot pump relief valve intergral in the gear pump?
also, reading there - you say the hyd pump was rebuilt.
did the rebuild shop install a new pilot pump?
if so, you may want to remove the gear pump and count the splines on the shaft comparing to the number of splined teeth grooves of the p2 hyd pump shaft were fitted.
i have had one machine where the p2 main pump shaft was a 13 tooth female spline and the pilot pump purchased (non-oem) was a 12 tooth spline (smaller)
the machine seemed fine cold but when the hyd warmed up the shaft slipped.
worth looking at.
cheers!
adam.

MR. KOBELCO
08-10-2011, 07:15 PM
hi mr.kobelco i have a wiring nightmare in a k905lc11 excavator it had a fire in the ignition in the control panel and burnt some wires off to starter would there be a diagram available for this machine. not sure where to find serial # thanks in advance lakeland.705

hi,
yes i can provide the electrical schematic you need but i do require the ser#
YP-#### or YPU-####
you will find stamped into the edge of the upper platform structure - looking center of the lift cylinders.
cheers!
adam

cadillac
08-17-2011, 03:46 PM
Mr. Kobelco, I have a sk200lc mark iv sn#YQU2360 with the alarm going off. Sounds like the temp alarm but checked temp with laser gun and is at 210 degrees. Radiator has been rebuilt, thermostat replaced, air filter changed and new temp sensor installed. Am I missing something or is the alarm going off for some other reason. I'm stumped!!! Also having trouble getting my question to post so bare with me if you get it more than once. cadillac