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  1. D

    Komatsu PC50MR-2 Motor stalling.

    those little pumps are lemons. sorry to say but time for a new pump and a good flush
  2. D

    Komatsu PC50MR-2 Motor stalling.

    not possible from monitor.
  3. D

    Komatsu D61PX final drive noise

    there isnt much in there. id pull them off and have a look. as for vetech63 different aminal but yes parts for those little drives can be tough to get at times.
  4. D

    PC78 fuel pump

    like just the hand pumping element??? since you in there clean the fuel screen inside the banjo fitton on the line from the tank to the lift pump block. pull the banjo fitting out and the screen will unscrew from the inside of the bolt. DK152200-5420 is the p/n for the hand primer.
  5. D

    Komatsu 450-3 transmission shifting issues

    Sounds stupid but wiggle the tranny fuses. I’ve seen a few -3 loaders where the fuse box corroded and caused funny issues.
  6. D

    All in a days (or two) work pictures

    which groups on facebook do you post in? im trying to match the truck but its not working well.
  7. D

    Komatsu PC50 MR-2 tilt floor won't close

    correct, odds are the floor is a little tweaked now and wont sit down enough for it to sit flat and far back enough.
  8. D

    Komatsu D31PX-21 Ser. #51474

    lift up the boot around the f-n-r lever, open up the clear tube over the wires and odds are one off the wires got caught on the corner of the block that the lever is bolted to and ripped the wires, very, very very common. just give the wires a little pull, on ocasion the wire wont be severed but...
  9. D

    Komatsu Serial Number check Please

    john c , here in canada as of dec 31, 2019 we were able to bring in teir 3 wa & pc's so there is a whole big pile of pc-8's labeled as new as 2019 and same with the loaders.
  10. D

    Komatsu 450-3 transmission shifting issues

    if the dash is displaying what your selecting its an issue from the controler down, like john said eletrical issues, the shift diodes on the ground side of the harness are very well known for causing head aches. clean and apply di-eletric grease and test.
  11. D

    No Travel, Rotating Joint removal - Link Belt LS4300 CII

    you can just pull half the joint and reseal it and drop it back on.. saves a few hoses and bolts.
  12. D

    KVGT issue

    you guys are good, typically the screen in the bottom of the rgr housing plugs easily, if its clean and good pressure from the boost oil pump, pull off the epc for vgt control and clean it well, and iirc correctly there is 2 screens under the block with the oil feed line on the tubro, the...
  13. D

    Komatsu pc200-5 counterweight

    41mm heads 3,400kg no spec for bolt size or pitch in book, not even in tooling list.
  14. D

    Komatsu PC50 MR-2 tilt floor won't close

    sounds like the lock bar (red linkage) is jammed up.
  15. D

    Komatsu PC75uu-2 pump parts

    Uchida me outta a good pump lol Those small komatsu pumps don’t last long even OEM But the Chinese stuff it will be fine.
  16. D

    WA200-5 hydrostatic transmission problems

    DX19KZ - MOTOR 1 SOL ERROR. DX20KZ- CLUTCH SOL SYSTEM ERROR (CONNECTOR T05 INFRONT OF LEFT REAR WHEEL IF I REMEMBER CORRECTLY 5-15 OHMS. ) DW26KZ - MOTOR 2 SOL SYSTEM ERROR AS FOR THE OTHER 2.. BETWEEN THE 2 HST MOTORS THERE WILL BE 2 COILS THAT GO TO A COMMON 4 PIN PLUG. THE COILS SHOULD HAVE...
  17. D

    WA320-3 transmission problems

    and make sure the inching pedal isnt hanging up. and machine is free rolling. if the filter was crushed you may want to put a gauge, typically that shows that pump failure is occuring and since the metal cant pass it plugs and crushes the filter untill a hole occurs then oil will flow and...
  18. D

    Komatsu WA700 park

    if you say its got brake oil tanks its a -1 as i recall the park brake is hyd controlled with no way for oil to transfer as its a pinion brake on the f/a.
  19. D

    Pc360lc-10 pump noise

    did you pull the suction strainer? drive each track separately under load and no load.. see if its front or rear pump. does the tank have pressure on it? pressures are set on the control valve...
  20. D

    Komatsu wa400-5L hydro's

    switch pump failed, possibly coupling depending on arrangement.
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