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I have a D21p-7 komatsu dozer. Serial number 76087. I just
I have a D21p-7 komatsu dozer. Serial number 76087. I just bought the machine and the right tracks only have enough power to go straight back and straight forward. When I push the left brake the right… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
14,863 satisfied customers
I have a 1975 D4D that quit steering to the right while in
I have a 1975 D4D that quit steering to the right while in use last week. The right pedal goes all the way down, and does not spring back up. I have had to turn the adjustment bolt in about 2-3 rounds… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,325 satisfied customers
I've got a 1979 d3 runs good until warmed up then starts
Second Opinion] Hi, I've got a 1979 d3 runs good until warmed up then starts slipping engine revs then eventually won't move at all. Let it sit and come back later then moves again for a bit then does… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
14,863 satisfied customers
I've got a 1979 d3 runs good until warmed up then starts
Hi, I've got a 1979 d3 runs good until warmed up then starts slipping engine revs then eventually won't move at all. Let it sit and come back later then moves again for a bit then does the same … read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,325 satisfied customers
I have a cat d3 from the 70s. I'm looking for information on
I have a cat d3 from the 70s. I'm looking for information on adjusting the brakes. It seems to work well but have to really push the pedal hard for the right track. Any help? … read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,325 satisfied customers
Right steering clutch not working. D3b sn 45v38959
Right steering clutch not working JA: What is the complete model and serial number of your machine? Customer: D3b sn 45v38959 JA: Are you fixing this yourself? What have you tried so far? Customer: Ye… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
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I have a Hitachi DX40 Dozer. I cannot get it to turn. I
I have a Hitachi DX40 Dozer. I cannot get it to turn. I suspect I am low on transmission fluid (?) but don't know where the fill is located. I believe it may be under the seat? There is what appears t… read more
Dan
Dan
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Auto Mechanics 1&2/diesel mech
14,863 satisfied customers
I recently purchased a used Caterpillar D4C Series III
I recently purchased a used Caterpillar D4C Series III machine # 6YL00776 bulldozer with power shift . After putting it to some basic use, I saw that if I pushed up against something solid, like a stu… read more
catmastertech
catmastertech
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Vocational, Technical or Trade Scho
1,325 satisfied customers
D37e-2 1990 steering/brake problem. Right side operates
D37e-2 1990 steering/brake problem. Right side operates normally. Left side powers the track properly but requires pulling the steering lever all the way to its travel limit to release the track. Left… read more
Dan
Dan
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Auto Mechanics 1&2/diesel mech
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D3B catapillar 1985 model When you move the bulldozer
D3B catapillar 1985 model When you move the bulldozer forward or reverse, the left track acts like the brake is locked. Even though the steering clutch and brake is not touched. Have released all tens… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,325 satisfied customers
I have a D3 S# 79U-3855. Had left brake re-padded a year ago
I have a D3 S# ***** Had left brake re-padded a year ago plus had both valves under the pedals rebuilt. When we opened up the left clutch compartment it had water and mud also some oil inside about 2 … read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,325 satisfied customers
I have a 70s D3 Dozer and it is turning right fine under
I have a 70s D3 Dozer and it is turning right fine under load but does not turn as well in reverse or not under load. … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
14,863 satisfied customers
I have a JD 550c dozer. It pushes fine straight ahead but it
I have a JD 550c dozer. It pushes fine straight ahead but it won't steer left and when I pull the left lever under load it seems to stop power to both tracks. I don't have a manual for this machine.I … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
14,863 satisfied customers
I have 1992 TD -8G DRESSER Dozer! I changed the left final
I have 1992 TD -8G DRESSER Dozer ! I changed the left final drive . Started the machine moved it forward and backwards , turned to the left it works fine . When I turn to the right the brake pedal jum… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
14,863 satisfied customers
Have a d20 dozer. Right steering brake doesnt work. If you
Have a d20 dozer. Right steering brake doesnt work. If you pull both levers back will stop dozer.any ideas?… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
14,863 satisfied customers
Hi,D3 dozer 79U5012 not steering in left direction. I believe
Hi, D3 dozer 79U5012 not steering in left direction. I believe the steering clutch is not releasing. When the pedal is pressed both tracks stop as if brake is being applied. I have checked pressure at… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,325 satisfied customers
So the transmission oil is separate from the hydraulic tank
So the transmission oil is separate from the hydraulic tank in the rear of the tractor? I will pull the floor plate and check fluid level. I went and purchased some special 30 weight oil from CAT @ $2… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,325 satisfied customers
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