Fault Phenomenon: Komatsu HD465 mining truck when lifting the dump body, one side raises first, causing distortion and abnormal noise.

Troubleshooting Process:
– Checked flow divider: flow divider valve spool stuck.
– Checked cylinders: one cylinder has severe internal leakage.
– Checked lines: one inlet line clogged or kinked.
– Checked mechanical: dump body pivot point sticking.

Root Cause: The flow divider valve in the hoist hydraulic circuit is stuck due to debris, causing unequal flow distribution to the two cylinders.

Required Parts: Clean or replace hoist flow divider valve.