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Uneven chain tension and seized carriage rollers caused the inner mast to twist during extension
A cracked main control valve seat and contaminated hydraulic oil caused the bucket cylinder to retract under load
A blocked priority valve filter and worn steering pump vanes caused low flow and delayed steering response
A worn steering column universal joint and loose orbitrol mounting bolts caused excessive play and erratic handling
A cracked load holding check valve seat and worn cylinder piston seal caused the boom to sink when the engine was stopped
A worn torque converter impeller hub seal and blocked transmission filter caused pressure loss and thermal runaway
A stuck check valve in the tilt cylinder circuit and loose mount bolts caused forward tilt and structural vibration
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
