Oil leakage from the control valve on the hydraulic power pack

Cause 1: Leakage from the hose connections to the valve.               

  • Tighten the couplings and the hexagonal nipples. If necessary, replace the sealing washers under the hexagonal nipples.


Cause 2: Leakage from pressure relief valve or damping valve.

  • Tighten the nuts, replace nuts and seal washers if necessary.

Cause 3: Leakage from the gaskets between the pressure compensation valve and the control valve body. The oil seeps out between these parts, preferably the lower parts.

  • Replace the three O-rings between these details.

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