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Worn carbon brushes and a clogged motor vent caused excessive sparking and thermal trips
A faulty regeneration check valve and air ingress caused the boom to shake violently when lowering slowly
A broken speed sensor wire and stuck solenoid valve prevented the transmission from shifting to 4th gear during transport
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
