Thank you for sharing your experience. This cylinder is the largest I have seen. A position previously held by a John Deere 690d. The packing kit is quite expensive also. I think I should remove rod and piston to eliminate this possibility. Logic was telling me it can't be a bad seal because of the bypass in only one direction. Thanks, Dan
-
Thank you for visiting HeavyEquipmentForums.com! Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site. The more members that join, the bigger resource for all to enjoy. Thank you!
Kobelco hydraulic excavators
- Thread starter MR. KOBELCO
- Start date
Kobelco ireland
Senior Member
Hi d-rom the arm port relief valve should not be in two pieces it should be all one unit. If your machine has a factory fitted attachment spool housing you can take a relief valve from there and swap it with the arm relief valve
Thank you for responding. I do not have aux. circuit on this machine and I noticed that the other relief valves are a different design externally than the arm valve. I am also confused by the parts manual, it calls for this same valve design, in different ratings, for all spool sections. Maybe I will pull and swap with another section if they are the same "below the belt". Dan Romano
Kobelco ireland
Senior Member
All port relief valves will have a slightly different pressure setting but all will be set higher than the main relief so you will be able to temporarily swap them to test.
when i lift it clear of the ground and track one at a time one track runs fast , runs fine on the ground
Kobelco ireland
Senior Member
.
Hi sumeet if you take down the plate under the cab directly below the track pedals you will see a solenoid bank with two rows of solenoids one row has four and the other has three. On the row with three solenoids solenoid 1, solenoid 2, a gap where solenoid 3 would be located, solenoid 4. The two speed travel is solenoid 2. You will need to replace the solenoid. Can you give me more information on the machine losing power. Is it losing hydraulic power or engine power. The 2 speed solenoid should not affect the overall machine performance so it's possible you have two problems
The machine runs well at first. When u completely extend the boom and then bring the boom in. The power decreases dramatically. Also when pushing the machines max performance while pulling heavy loads the machines rpm decreases and thus looses power. Also thank you for the solenoid solution
The machine runs well at first. When u completely extend the boom and then bring the boom in. The power decreases dramatically. Also when pushing the machines max performance while pulling heavy loads the machines rpm decreases and thus looses power. Also thank you for the solenoid solution
metalschmidt
Member
Kobelco SK 220 Won't Throttle up under load.
Help.. I have a KOBELCO SK 220 LC 1989 LLU. It does not throttle up under load. Auto Acc works to bring it to high idle but when working the machine it does not compensate for load. RPM check reads 0 RPM even though it's running at low idle (400 RPM ? ). All other functions seem to be fine so I thought it was the revolution sender that was faulty and when I checked it it has two twisted pairs of leads. One pair (White and Green) are connected to the harness via a plug with read and white wires. The other pair of wires ( Red and Black) are are just hanging loose. Looks like they were broken off but I have now idea where they go? Can anyone tell me where they go and is there a way to check the sender to see if it is faulty? I sincerely appreciate any advise. Thanks!
Help.. I have a KOBELCO SK 220 LC 1989 LLU. It does not throttle up under load. Auto Acc works to bring it to high idle but when working the machine it does not compensate for load. RPM check reads 0 RPM even though it's running at low idle (400 RPM ? ). All other functions seem to be fine so I thought it was the revolution sender that was faulty and when I checked it it has two twisted pairs of leads. One pair (White and Green) are connected to the harness via a plug with read and white wires. The other pair of wires ( Red and Black) are are just hanging loose. Looks like they were broken off but I have now idea where they go? Can anyone tell me where they go and is there a way to check the sender to see if it is faulty? I sincerely appreciate any advise. Thanks!
whitemike
Well-Known Member
I am in the process of putting a Seppi rotary mulcher on a 02 SL160LC Kobelco Dynamic Acerra S# ym02u0469. I sent my machine and mulcher oil and pressure requirements to SUN Hydraulics and they put me a priority flow valve together with the instructions on where and how to install it. On the mulcher motor itself it has 3-#3/4 lines, the pressure line A. runs to my SUN flow valve, another line B.(case drain) i am running it back to hyd. tank, the 3rd line C. just returns oil from motor( it still has some pressure ). I don't know exactly where to plumb this line to my machine at. Could you help me with this? a picture of someone pointing at the location would be wonderful but may not be possible. But a good explanation will help me alot. Just to say this my machine has an unused hammer valve, which i think also is a one way oil flowing circuit. Is it possible to use its fittings at the valve banks to hook my return line? Any help would be appreciated!
Could someone help me find where the sensor is located. The monitor displays pump p2 sensor. Will this result in power loss? The machine runs fine briefly and then slows down, track speed and bucket pushing power is reduced. The machine whines a lot. Is it potentially a broken wire and if so where should I look. Thanks in advance.
Kobelco ireland
Senior Member
If you take off the belly under the pumps and look up follow the suction pipe to where it bolts to the pump near the counter weight directly under where the suction pipe bolts on there will be two sensors. These are the high pressure pump sensors the one nearest the engine is p1 sensor and the other is p2. Mark which connector is which and don't mix them up. Next remove the sensors and swap the position they are fitted in reconnect wires. If this changes the problem to p1 pump the sensor is faulty if the problem stays on p2 the wiring needs to be checked. Also when the tracks go weak is if both or just one track? And if only one track which one
K9lvr4ever
Member
Hello Mr. Kobelco,
I bought an SK100 M5 SV Acera. The guy told me that it started hard and after operating at working temps for a few hours, it wouldn't start without ether...
I too have had a really difficult time starting it... as soon as you shoot the smallest shot of ether it fires up immediately and runs great. I haven't worked it yet to observe the no start after working temps.
The batteries are decent but only 500 CCA. Could it be that the batteries just aren't turning it over fast enough? This machine has the Isuzu 4BD1 engine in it and I am not that familiar with that engine. Anything you can think of or point me in the right direction would be greatly appreciated. Serial on the machine is YW06533.
Thank you!
Brian
I bought an SK100 M5 SV Acera. The guy told me that it started hard and after operating at working temps for a few hours, it wouldn't start without ether...
I too have had a really difficult time starting it... as soon as you shoot the smallest shot of ether it fires up immediately and runs great. I haven't worked it yet to observe the no start after working temps.
The batteries are decent but only 500 CCA. Could it be that the batteries just aren't turning it over fast enough? This machine has the Isuzu 4BD1 engine in it and I am not that familiar with that engine. Anything you can think of or point me in the right direction would be greatly appreciated. Serial on the machine is YW06533.
Thank you!
Brian
saftey stopes the bucket from cab wipe out you have a wiring fault
mulchmaster
New Member
Kobelco sk200-3 stalling/bogging problem
Hi, new to the forum here so i hope i am posting this in the right spot. I have a sk200-3 acera excavator and am having a stalling problem after running for about 45 mins. It runs very well for the first 40 mins and then will bog down and stall even with little use of the hydraulics. If i let it sit for about 15-20 mins it will start right up and run fine for another 30-45 mins. lcd screen is not working so i can not see any codes. checked engine with infrared thermometer and seems to be running cool enough, about 130 degrees. Changed fuel filter, air and hydraulic filter nothing changed, saw on this forum to check screens on banjo nuts but did not find any screens in banjos on pump.I have owned machine for eight years and this is the first problem that has stumped me. 6000 hrs on machine serial # yn24647 with the mitsubishi 6 cylinder in it. One more thing the smoke is white/grey not black when it finally decides to stall/bog down. Thanks for your help this is a great forum.
Hi, new to the forum here so i hope i am posting this in the right spot. I have a sk200-3 acera excavator and am having a stalling problem after running for about 45 mins. It runs very well for the first 40 mins and then will bog down and stall even with little use of the hydraulics. If i let it sit for about 15-20 mins it will start right up and run fine for another 30-45 mins. lcd screen is not working so i can not see any codes. checked engine with infrared thermometer and seems to be running cool enough, about 130 degrees. Changed fuel filter, air and hydraulic filter nothing changed, saw on this forum to check screens on banjo nuts but did not find any screens in banjos on pump.I have owned machine for eight years and this is the first problem that has stumped me. 6000 hrs on machine serial # yn24647 with the mitsubishi 6 cylinder in it. One more thing the smoke is white/grey not black when it finally decides to stall/bog down. Thanks for your help this is a great forum.
southernman13
Senior Member
I found a screen on my 320 cat (Mitsubishi engine) it was in the banjo fitting that went from filter to the manual pump on the side of the engine. A little plastic filter that screwed into the inside of the fitting. Don't know if the Kobelco has one to. I actually own an sk250lc but haven't checked it yet. Good luck.
mulchmaster
New Member
Sk200 stalling
Thanks so much, will check that in am. Supposed to be on a job Monday am.
Thanks so much, will check that in am. Supposed to be on a job Monday am.