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pc75uu-2

  1. MrEvilPirate

    Looking at my first excavator - Komatsu PC75uu-2e

    It is a 2004 w/4300 hours, owner claims "tight and powerful" no leaks. It looks clean in the pictures. Drive sprockets nice square tips, metal track looks to be in good condition. I spoke to him about it he said he had it for 3 months got it from a guy who used it to do septics and he had just...
  2. S

    Komatsu PC75UU-2 Injection Pump Timing

    My 1994 PC75UU-2, Serial number 8310, Engine Model # 4D95L-1, was belching black smoke and spilling fuel into the crankcase. Air filter was clean. Started well, ran well, but smoked under even a light load. Injectors were just rebuilt. Decided it was the Injection Pump. Took it off, sent it away...
    • Smedlow
    • Thread
    • injection pump komatsu pc75uu-2
    • Replies: 4
    • Forum: Excavators
  3. J

    Komatsu PC75uu-2 pump parts

    I just picked up an older Komatsu PC75uu-2. The previous owner said it needs pump work. Took it home and sure enough, I got 2,200 psi on 1 valve manifold block and 0 psi on the second valve manifold block. The third manifold block comes off the gear pump at the end of the piston pump and that...
    • Jon Bradtke
    • Thread
    • excavator excavator pump komatsu pc75 pc75uu-2 pump parts
    • Replies: 24
    • Forum: Excavators
  4. D

    Help! Need Komatsu pc75uu-2 Starter selenoid

    So.. it sat for 3 years, Paid $2500. Cab is dented in from a tree but didn't affect it's usability. Reliable sources told me it ran excellent until it died. Wouldn't start. Burnt valves. Took head to shop and had valve job done, were bad but now all good there. After putting new batteries in...
    • denjoe81
    • Thread
    • 4d95l-1 pc75uu-2 starter selenoid
    • Replies: 2
    • Forum: Excavators
  5. S

    Komatsu PC75uu-2 Starter Problem

    1. My 1994 PC75UU-2, Serial number 8310, Engine Model # 4D95L-1, was getting harder to start. I replaced the batteries but still turned over slow. Had a friend try and start while I watched and fire/smoke came out of the rear of the starter motor. Now it won't turn over at all. I suspect the...
    • Smedlow
    • Thread
    • oil level pc75uu-2 starter
    • Replies: 3
    • Forum: Excavators
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