Home>Knowledge>Construction Machinery Knowledge
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
A restricted transmission oil cooler and slipping forward clutch caused thermal runaway and fluid degradation
Misaligned lift cylinder anchor pins and stretched anchor bolts caused the inner mast to twist, jamming the rollers
A blocked travel motor bypass valve and worn travel brake seals caused one track to move slower and overheat
