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kumatsu pc450 LC lever not working

abedsunna · 2022-03-30 03:03

hello i have komatsu 450 suddenly stopped operating all hydrulic movement lever not working please help

Replies9
  1. #1abedsunna2022-03-30 04:03

    450-7

  2. #2uffex2022-03-30 04:20

    Good day First check your servo pressure assuming there is no history to the fault. Kind regards Uffex

  3. #3Vetech632022-03-30 09:07

    Make sure you don’t have a blown fuse on your lock out system also.

  4. #4abedsunna2022-03-30 14:38

    do you mwan that it might be the pump coupling or shaft?

  5. #5abedsunna2022-03-30 14:39

    all fuses are ok

  6. #6abedsunna2022-03-30 14:42

    it would help if you have the electric workshop manual to trace the lever microswith and the safety solynoied

  7. #7abedsunna2022-03-30 14:43

    thanks for reply dears

  8. #8abedsunna2022-03-30 14:44

    also how to login to service menu

  9. #9uffex2022-03-31 04:11

    Good day Not sure which model we are talking about dash 3-4-5? It could ne a failed pump coupling however that is a guess much better work along the system to find the problem. See attached Kind regards Uffex