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A leaking central swivel joint seal and blocked travel motor brake line caused hydraulic bypass and dragging resistance
A worn priority valve spool and damaged suction hose caused simultaneous hydraulic system failures
Burnt brake switch contacts and a worn accelerator pedal sensor caused intermittent power loss and safety shutdowns
A scored swing motor swash plate and worn overflow valve seat caused internal leakage and loss of torque
Worn clutch piston seals and a blocked modulating valve accumulator caused harsh shifting and speed loss
Uneven chain tension and a bent lift cylinder rod caused the forks to tilt sideways during lifting
A worn brake piston seal and contaminated hydraulic oil prevented the swing brake from holding the machine on slopes
A stuck brake piston and blocked vent hole caused brake failure and differential overheating
Worn brush holder springs and a blocked traction motor ventilation screen caused electrical arcing and thermal protection trips
A stuck boom holding valve and air ingestion in the pilot line caused jerky movement and uncontrolled drift
