kc5gxc
Well-Known Member
Fine job on that thing, Mike. Thanks for the pic. I made some notes for when I have to do it.
Pete
Pete
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Section for komatsu d20,21 and similar grey market dozers
- Thread starter rangerfreak
- Start date
mikek
Member
thanks.....so yesterday I spent a few minutes looking into the glow plug operation on my tractor.
there is a (broken) pushbutton, that is factory installed, on the front of the drivers enclosure, lefthand side, below the throttle and gearshift. It has 2 wires going to it from wiring harness, but there is No voltage at any time.
Is this button the switch for the glowplugs?
Normally the current drawn of glowplugs is so high that a solenoid is used to close that circuit which is controlled by a lighter duty switch.
Does anyone know where the glowplug solenoid is located?
MikeK
there is a (broken) pushbutton, that is factory installed, on the front of the drivers enclosure, lefthand side, below the throttle and gearshift. It has 2 wires going to it from wiring harness, but there is No voltage at any time.
Is this button the switch for the glowplugs?
Normally the current drawn of glowplugs is so high that a solenoid is used to close that circuit which is controlled by a lighter duty switch.
Does anyone know where the glowplug solenoid is located?
MikeK
Orchard Ex
Super Moderator
It's for the horn. The glowplugs are operated by turning the keyswitch backward until the wire in the indicator glows. (looks kinda like the top of a saltshaker with a curled wire inside in the dash).
mikek
Member
Orch X,
that is a great bit of info!!
I really need to find a manual for this thing...
I just went out in the cold dark night to see what happens when I turn the key CCW, I get the 2 indicator lights illuminated, but no glow in the 'saltshaker'.
I don't hear any sound that I would expect to hear from glowplug solenoid either. I will try this again tomorrow and see if it makes a difference in starting the motor.
thanks,
MikeK
that is a great bit of info!!
I really need to find a manual for this thing...
I just went out in the cold dark night to see what happens when I turn the key CCW, I get the 2 indicator lights illuminated, but no glow in the 'saltshaker'.
I don't hear any sound that I would expect to hear from glowplug solenoid either. I will try this again tomorrow and see if it makes a difference in starting the motor.
thanks,
MikeK
It's pretty mild in Texas and I haven't had my D20 through a winter yet but, so far it seems to need very little glow time to fire up. I haven't held it in glow long enough to see anything in the indicator and I don't hear a relay either.
FWIW, I have a old Mercedes diesel ('75 model) with a similar 'salt shaker' GP indicator and you have to glow that engine for a LONG time (+60 seconds) to see the wire in the indicator. It doesn't have a relay either.
rangerfreak
Well-Known Member
where can i get a manual
where can i buy a shop manual for my dozer d20:Banghead
where can i buy a shop manual for my dozer d20:Banghead
Komatsu D20A6 Help
Hello, I posted this in another forum, I think it was the wrong one so I am trying it here. My D20A6 won't pull on the left track. Right side pulls fine. Any ideas? Brake on left works fine, just won't pull. No noises, driveshaft spins. Thanks for any assistance.
Hello, I posted this in another forum, I think it was the wrong one so I am trying it here. My D20A6 won't pull on the left track. Right side pulls fine. Any ideas? Brake on left works fine, just won't pull. No noises, driveshaft spins. Thanks for any assistance.
Orchard Ex
Super Moderator
It doesn't make any sound. The wire in the indicator breaks very easily when it gets old so it may be bad. A new one is about $20 +/- IIRC. Or you may not be getting any current to the system.:beatsme
Orchard Ex
Super Moderator
:beatsme Could the left clutch linkage be stuck? :beatsme
John White
Well-Known Member
Rangerfreak: Call D& M Machinery, 716-942-6318, see if he can help you with a manuel, he had one for my Mitsubishi. Also you might check on e-Bay, seems like I seen one there.
copperhead
New Member
Dipsticks
For some reason, I cannot get the picture of the dipsticks to download properly. Could someone just write which one is which? Thank you.
For some reason, I cannot get the picture of the dipsticks to download properly. Could someone just write which one is which? Thank you.
The dipstick under the brake pedal (D20) is for the main clutch case. The dipstick under the front edge of the seat is for the transmission and bevel gear case (also D20).
rangerfreak
Well-Known Member
is it 12 or 24
this might sound like a stupid question but is the dozer 12 or 24 volt:beatsme
this might sound like a stupid question but is the dozer 12 or 24 volt:beatsme
mikek
Member
my D21A-5 is 24v system. has (2) 12v batts. connected in series under the operator's righthand console.
Countryboy
Senior Member
- Joined
- Jun 8, 2006
- Messages
- 3,276
- Location
- Georgia
- Occupation
- Load Out Tech. / Heavy Equipment Operator / Locomo
Welcome to Heavy Equipment Forums copperhead! :drinkup
My D20 is a 24V system with two 12V betteries connected in series, located behind the seat.
Orchard Ex
Super Moderator
I think that they changed from 24v to 12v at the -7 series and later, but I could be wrong.
D20A6 Help
Linkage is not stuck and everything seems to be operational. Could it be the steering clutches on the LH side are bad? The steering brake band has been replaced but I don't think the person that had it before me checked the clutches.
Originally Posted by hopto211
Hello, I posted this in another forum, I think it was the wrong one so I am trying it here. My D20A6 won't pull on the left track. Right side pulls fine. Any ideas? Brake on left works fine, just won't pull. No noises, driveshaft spins. Thanks for any assistance.
Linkage is not stuck and everything seems to be operational. Could it be the steering clutches on the LH side are bad? The steering brake band has been replaced but I don't think the person that had it before me checked the clutches.
Originally Posted by hopto211
Hello, I posted this in another forum, I think it was the wrong one so I am trying it here. My D20A6 won't pull on the left track. Right side pulls fine. Any ideas? Brake on left works fine, just won't pull. No noises, driveshaft spins. Thanks for any assistance.
rangerfreak
Well-Known Member
have a quick question
and my question is do i need any tool to flush the radiator on my dozer.the reason that i ask is because i am far away from it right now and i need to know what tools to take when i go down and service it.
Thank you for your time and have a nice day.
and my question is do i need any tool to flush the radiator on my dozer.the reason that i ask is because i am far away from it right now and i need to know what tools to take when i go down and service it.
Thank you for your time and have a nice day.
rangerfreak
Well-Known Member
typo tools
P.s my dozer burns about 3 qts of oil a day any simple fixes for that as well.
and my question is do i need any tools to flush the radiator on my dozer.the reason that i ask is because i am far away from it right now and i need to know what tools to take when i go down and service it.
Thank you for your time and have a nice day.
P.s my dozer burns about 3 qts of oil a day any simple fixes for that as well.