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A stuck unloader valve in the air compressor governor and a torn diaphragm in the brake booster caused pedal fade and contaminated air tanks
An internal rupture in the oil-to-water hydraulic cooler allowed coolant to infiltrate the hydraulic tank while restricting engine cooling
Cell voltage imbalance and a corroded BMS sense-wire harness caused premature low-voltage shutdowns and locked-out charging
A ruptured hydraulic accumulator nitrogen bladder and a stuck pulse control valve caused pump flow oscillation
A seized swing joint bearing and scored pilot supply port caused chassis vibration and hard steering
A stuck open power steering flow amplifier valve and welded pilot contactor caused uncommanded hydraulic pump operation
A kinked boom pilot hose and blocked tank breather caused main pump starvation and erratic valve spool movement
A failed track adjuster seal and a broken final drive planet gear caused track misalignment and driveline binding
A melted Diesel Particulate Filter (DPF) core and seized wastegate lever caused the engine to choke and lose power
A broken return filter element and debris-clogged boom float spool caused uncommanded boom descent and hydraulic thermal runaway
