Fault Phenomenon: Manitowoc crawler crane during inspection, the number of broken wires in the luffing wire rope within one lay length exceeded the limit.

Troubleshooting Process:
– Checked sheave liners: liners worn unevenly, cutting the rope.
– Checked drum spooling: tangled spooling causing crushing.
– Replaced all worn sheave liners, forcibly replaced wire rope.

Root Cause: Worn sheave liners created sharp edges that cut the wire rope.

Required Parts: Sheave liners, wire rope.