Fault Phenomenon: BelAZ 7540 mining truck cracks appear on the dump body floor, even perforation leading to material leakage.

Troubleshooting Process:
– Checked welds: original welds fatigued and cracked.
– Checked steel plate: floor steel plate worn thin.
– Checked loading: excessive impact from loader dumping.
– Checked material: oversized and sharp material.

Root Cause: Long-term high-frequency impact from large ore caused fatigue cracks in the dump body floor welds and wear through the steel plate.

Required Parts: Cut out and replace floor steel plate, re-weld and install protective liner plates.