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A seized priority flow control valve and air-bound steering cylinder caused inconsistent pilot pressure and loss of directional control
A clogged catalytic converter and retarded ignition timing caused the engine to run rich, overheat, and lose power under load
A failed load check valve in the main control valve allowed hydraulic oil to leak back into the tank, causing the bucket to drift open
A worn torque converter impeller hub and low fluid level caused the transmission to slip under heavy load, mimicking a clutch failure
Worn steering knuckle bearings and a loose orbitrol coupling caused excessive looseness in the steering system
A torn air intake hose and dirty fuel injectors caused the engine to run rich and fluctuate RPM under load
A broken shift cable mounting bracket and stuck inching valve caused the transmission to remain permanently in high-range gearing
Worn chain anchor pins and uneven chain elongation caused the lift chains to skip over the sheave wheel, creating a severe safety hazard
A damaged swing motor brake valve and clogged orifice caused the swing to accelerate and decelerate unpredictably
A sheared parking brake hub key and worn clutch plates caused the machine to roll forward even with the transmission in neutral
