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komatsu pc78

  1. C

    Komatsu PC78us-6-n0 Motor Stalls while moving bucket and swing arm

    Hello, I have recently purchased a 2006 PC78us-6-n0 serial # 10051 with 6900 hours on it. This machine has sat for almost a year prior to me purchasing it, and filters thus far have been quite dirty. I brought it home and started digging. Once it warms up, the motor will stall while doing...
  2. K

    Kobelco SK75SR vs Komatsu PC78US

    Hi. New to forum. Looking to purchase a new 8 ton excavator. We have narrowed choices down to Kobelco SK75SR or Komatsu PC78US. Komatsu is a little more expensive and dealer is a little further away. Otherwise, machines have very similar specs. Have priced both machines with 4yr warranty since...
  3. T

    Komatsu PC78 MR6 low power and stalling

    Hey everybody, New member and first time posting here. I recently purchased a used PC78 with ~6k hours on the machine. I wasn't able to test the equipment too much at the dealership (used equipment lot), but the machine appeared to operate well. After the machine was delivered I started to...
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