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  1. 8

    Thumb problems on a komatsu

    I have a Komatsu PC 75 uu-2. I bought a thumb for it and I installed it I have all of the hydraulic lines heading out to the end for the thumb in the pedal inside. The machine used to be set up for a rock hammer. Now I am finding that if I go to the left with the pedal it is high speed into the...
  2. 8

    1997 international 4900

    I just purchased a plow truck 1997 international 4900 s/a I am having a problem with the dash.. from what I hear it's common. But I also cannot find the air brake warning buzzer. The truck is in real good shape but needs a rocker panel. Is there any place that they can be purchased? Or am I...
  3. 8

    How to test hydraulic preassure

    I have a komatsu PC75uu -2 I am wondering where I can check my pressure. I have replaced my hydro filter and refilled the tank. I have noticed that the arms move slow and if I go up a hill the tracks will slow down and stop. The motor does not bog . I am trying to find where would be the best to...
  4. 8

    Wiring schematic pc75uu

    I was wondering if anybody had a wiring schematic for the PC 75 uu - 1 I I am looking to see where the safety switch 4 the Hydraulic lever for the hand controls goes does it go to a relay and where it would be. Thanks in advance
  5. 8

    Komatsu pc75uu no power to the stick

    I recently had a leak on one of my hydraulic cylinders the machine set for about 3 months I had a shop fix the cylinder for me I installed the new cylinder in that time the batteries had died so I charge them up started the machine and I was able to operate the boom in the arm in the bucket...
  6. 8

    lower heat ls180

    Has anyone ever made the heater go down to their feet? I am thinking of adding a duct to get some form of heat there. What do you guys do to keep your feet from freezing. I am getting ice by the pedels. Even with the heater up top working perfectly.
  7. 8

    komatsu pc75 questions

    I was recently using my mini at a job loading atumps without a thumb. I had a stump come back and smash out both front windows. I am in eastern ct and cannot seem to find glass anywhere for it. Online when I called my dealer they wanted a part number. I don't have one. They said i needed a parts...
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