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A stuck open power steering flow amplifier valve and welded pilot contactor caused uncommanded hydraulic pump operation
A seized swing joint bearing and scored pilot supply port caused chassis vibration and hard steering
A ruptured hydraulic accumulator nitrogen bladder and a stuck pulse control valve caused pump flow oscillation
A melted Diesel Particulate Filter (DPF) core and seized wastegate lever caused the engine to choke and lose power
A failed track adjuster seal and a broken final drive planet gear caused track misalignment and driveline binding
A kinked boom pilot hose and blocked tank breather caused main pump starvation and erratic valve spool movement
Corroded traction motor phase connections and a degraded battery cable caused voltage sag and inverter cut-outs
A blocked regeneration orifice in the bucket control valve and a worn pilot pump caused hydraulic starvation under load
A broken return filter element and debris-clogged boom float spool caused uncommanded boom descent and hydraulic thermal runaway
Welded lowering contactor contacts and a burnt dynamic braking resistor caused the hydraulic pump motor to seize in the “Lower” position
