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  1. J

    Pc300-8 a/c not working

    Hi guys. I'm looking to see if anyone can help me out. I have a komatsu pc300-8 and the a/c is not working. This machine will be shipped to Alabama and so the a/c need to function. I have no power to the high pressure switch under the cab. I've been looking for a wiring diagram. If anyone has...
  2. J

    sevice manuals

    ncrawford@jacksondemolition.com It was spelled wrong sorry for the that
  3. J

    Duetz powered Bobcat

    Hi everyone. So our Bobcat 863 turbo blew up the other day. Spun a rod bearing on th crank after over heating. My problem is that I can't figure out where the oil went. The motor ate over 2 gallons over oil after I filled it up to get it back to my shop. I just want to pick someone's ear about...
  4. J

    sevice manuals

    ncrawford@jacksondemoltion.com
  5. J

    sevice manuals

    Hi I'm looking for a service manual for a komatsu pc300-8 if anyone has one. Thank you
  6. J

    Bob S185 locking up

    Thanks guys I'm going to start there. I have a manual and a wiring schematic so I know the wires are good I followed them all the way to the drive controller
  7. J

    Bob S185 locking up

    Cracks like those?
  8. J

    Bob S185 locking up

    I took a look at the connectors. Tested for continuity and ohm they all tested good. Tested the main frame harness to the drive controller it tested good. The only time it happens is if you are going fast and you travel over excessive bumps and then it locks up and only forward right side won't...
  9. J

    Bob S185 locking up

    Ohh and by the way I did swap coils and the fault went away for awhile and then came back same code same side
  10. J

    Bob S185 locking up

    It is SJC. And my next question was going to be if the rear coils facing the engine were to drive the coward motion and vise versa. I'll check this out today. Thanks again
  11. J

    Bob S185 locking up

    Hi everyone. So I have another machine that's acting up. Anyone ever run into the service code D7555. In the manual it says right forward drive short to ground. It only does it intermittently. But it will lock up the forward drive on the right side but not the reverse side of the right side...
  12. J

    Komatsu PC360-10 won't start

    Haven't posted in awhile but I have gotten the machine to start. One of the operators changed the high pressure fuel filter and must of gotten contaminants inside the line. Found a blockage in high pressure line from filter to cp3 pump. Changed the lines and also the rail pressure sensor. Fired...
  13. J

    Komatsu PC360-10 won't start

    It's got an active fuel rail pressure very low. First time it happened was 4749 hr and it happened again at 5124 hr
  14. J

    Komatsu PC360-10 won't start

    I've been charging the battery this morning and it's got 24v
  15. J

    Komatsu PC360-10 won't start

    I tired posting a video but it wouldn't post. The rpms during cranking get to about 120
  16. J

    Komatsu PC360-10 won't start

    Yeah well my rail pressure is at -369 and the comman is 5802
  17. J

    Komatsu PC360-10 won't start

    I can touch the lift pump and hear it working and feel it working. I'm going to block off injectors one by one to see if I build pressure. I will get a gauge to see the amount of pressure I have. Thanks again guys.
  18. J

    Komatsu PC360-10 won't start

    My rail pressure won't go about -365 psi comman says 5802 psi.
  19. J

    Komatsu PC360-10 won't start

    If the pressure isn't close to the command would that mean lift pump or high pressure pump?
  20. J

    Komatsu PC360-10 won't start

    5124.8 hours. Will I have to clear the codes in the monitor?
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