Fault Phenomenon: Caterpillar 160M grader blade cutting edge wears faster in the middle than at the ends.

Troubleshooting Process:
– Checked crown: incorrect blade crown setting.
– Checked angle: excessive blade cutting angle.
– Checked material: uneven material hardness.
– Checked material: uneven heat treatment of cutting edge.

Root Cause: Improper blade crown adjustment caused higher contact pressure in the center, accelerating wear.

Required Parts: Adjust blade crown or flip/replace cutting edge.