Fault Phenomenon: BelAZ 7540 mining truck brake pads require frequent replacement, service life far below standard.

Troubleshooting Process:
– Checked wheel cylinders: brake wheel cylinder return poor.
– Checked brake drums: drums out-of-round or surface rough.
– Checked driving habits: frequent braking during operation.
– Checked material: brake pad material mismatch.

Root Cause: The brake wheel cylinder piston returns slowly, causing the brake pads to have slight, constant contact with the drum, accelerating wear.

Required Parts: Repair brake wheel cylinder, replace brake pads and resurface brake drums.