7. Durable Hydraulic Station Power Unit with 150cmx100cmx100cm Size

1.Stuck or worn relief valve ->clean or replace relief valve; 2.Internal pump leakage from abrasion -> replace worn pump; 3.Internal leakage of cylinder/valve block or external pipe seepage -> inspect seals and connections; 4.Nitrogen leakage of accumulator (for units with accumulator) -> refill nitrogen gas.

Air ingestion from leaking suction line / blocked suction filter, insufficient oil level, worn pump, misaligned coupling or emulsified oil caused by water ingress. Seal air leaks, top up oil or replace faulty components accordingly.

1.Relief valve stays open for continuous bypass due to spool sticking; 2.Severe pump internal leakage leading to power loss & heat; 3.Poor heat dissipation: broken cooling fan (air-cooled) or insufficient cooling water (water-cooled); 4.Degraded hydraulic oil or incorrect oil viscosity grade.