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Komatsu pc210lc -8 loosing pilot controls

dhutch ยท 2025-08-27 15:44

This machine is new to me. It'll run fine for an hour to hour and a half. If you stop moving the controls for more than a few seconds, only a few things move really slow or nothing at all. I can idle down and disengage the pilot controls, wait a few minutes or shut it off and crank back up and everything works fine for 5-15 minutes then does it again. I've changed the external hydraulic filters and it's full of fluid. Is there a relay or solenoid getting hot? A safety i don't know about or a stopped up filter? Any help is appreciated.

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