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E110b swing brake does not release even with the swing brake
E110b swing brake does not release even with the swing brake release switch on and all fuses good. Everything else works. I was thinking to replace the timer relay and parking brake relay and the swin… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,346 satisfied customers
I have a mid 90's Komatsu PC200LC-6, recently acquired.
Hello. I have a mid 90's Komatsu PC200LC-6, recently acquired. Yesterday, the swing stopped working, as if the swing brake was on, and I got Error Code EO3 blinking. Turned off machine, turned back on… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,346 satisfied customers
I have a Komatsu pc220-8 it's a grey market machine. It
Hello good morning. I have a Komatsu pc220-8 it's a grey market machine. It seems as if my swing break will not disengage. I'm wondering if you have a wiring diagram so I can use to start troubleshoot… read more
RichardH416
RichardH416
Resident Tech
Associates
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I a Komatsu PC 200LC-6 that swings to the right with no
Second opinion] I a Komatsu PC 200LC-6 that swings to the right with no problem. when you go to song left, you have to push joy stick all the way to the left. It will swing a few degrees then stop abr… read more
MitchellF415
MitchellF415
Heavy duty mechanic
Red seal certification
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I a Komatsu PC 200LC-6 that swings to the right with no
I a Komatsu PC 200LC-6 that swings to the right with no problem. when you go to song left, you have to push joy stick all the way to the left. It will swing a few degrees then stop abruptly. If you go… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,346 satisfied customers
Well I bought a Komatsu backhoe and can't release the
Well I bought a Komatsu backhoe and can't release the parking brake to bring it home. I think it is similar to some of the Cat models. Is there a better place to look for info on Komatsu? … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,346 satisfied customers
Swing motor won't turn either direction u can here pressure
Swing motor won't turn either direction u can here pressure but won't turn. The swing brake lock seems to be releasing no metal in gear box can brake sol valve be bypassed to check or how can be troub… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,346 satisfied customers
Gradall 3100 iv with interminttent no swing condition i
gradall 3100 iv with interminttent no swing condition i loose power at swing brake solenoid at same time i believe i … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,346 satisfied customers
Have a kamatsu 200 swing brake is stuck on Komatsu. Wb 215
have a kamatsu 200 swing brake is stuck on Komatsu … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,346 satisfied customers
Help with komatsu pc120 excavator. Serial #60777. And
Help with komatsu pc120 excavator JA: What is the complete model and serial number of your machine? Customer: Serial #60777 JA: Are you fixing this yourself? What have you tried so far? Customer: Yes … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,346 satisfied customers
We have a komatsu pc120 and my husband wants to know how to
We have a komatsu pc120 and my husband wants to know how to switch the controls over to be like john deere… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,346 satisfied customers
I have a 95 PC 150-5 when machine is warm it will stop
I have a 95 PC 150-5 when machine is warm it will stop swinging intermittently, we replace the swing brake selonoid and it still does it, any ideas … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,346 satisfied customers
My Komatsu PC60-7, serial 58403, was working fine last use.
My Komatsu PC60-7, serial 58403, was working fine last use. Today I started it up and it won't swing. It seems locked in "swing lock" mode, but the Swing Lock switch and indicator are not engaged or l… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,346 satisfied customers
I have a 1999 komatsu d41p-6, when cold it will not steer,
I have a 1999 komatsu d41p-6, when cold it will not steer, after operating mins it will start steering. I have adjusted the steering and rebuilt both steering cylinders but don't want to dig further w… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,346 satisfied customers
i have a pc 120-6 was running great turned it off and came
i have a pc 120-6 was running great turned it off and came back 3 weeks later....started right up.........but have no hydraulic can't move it and no controls work. safety arm is down and nothing? rats… read more
dieseldan55
dieseldan55
Mechanic
Vocational, Technical or Trade Scho
299 satisfied customers
Komatsu pc 120-3 excavator swing brake wont release Im
Komatsu pc 120-3 excavator swing brake won't release I'm working for a guy who bought an old worn out PC120, to do 2 projects. It's really tired& worn, but it's stayed together pretty well. Last year,… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,346 satisfied customers
I have a Komatsu PC120-6. I have reciently repaired the main
I have a Komatsu PC120-6. I have reciently repaired the main hydraulic pump. One of the pistons came apart at the flex socket running the failed parts through the pump. I repaired the pump and it work… read more
Expert
Expert
I am currently troubleshooting a start problem on a komatsu
I am currently troubleshooting a start problem on a komatsu pc600 lc. The intitial problem was the main power relay was burnt up. After replacing, I now have power to the cab. Repaired several other p… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,346 satisfied customers
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