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Kobelco SK170 mark 8 HELP!! hyd. pumps dragging engine down

Rick Walker ยท 2019-05-06 20:53

hello all, im working on kobelco sk170-8 excavator and when you go to start the machine you can hear the hydraulic pumps engage and they drag down the engine causing it not to start... i removed pilot pump pressure line to regulators and it will start every time. im thinking its a regulator problem but not 100% sure. just curious if anyone has heard or ran across this. thank you in advance! -Rick

Replies3
  1. #1Rick Walker2019-05-14 07:52

    any help would be greatly appreciated!

  2. #2mikebramel2019-05-14 13:07

    is the displacement electronically controlled or is there feedback hose from the control valve

  3. #3zubairu hamid2019-05-24 01:54

    Check all hydraulic hoses well maybe some has been mixed Up