Structure repair, overhaul or replacement decisions for ageing or heavily used cranes around duty history, load spectrum, fault records and critical-component condition.
Calendar age is not enough
Two cranes built in the same year can age very differently under different shifts, load ratios, cycles and environments. Start with actual duty and maintenance history.
- Shifts and cycles
- Average/heavy-load share
- Environment
- Maintenance history
Track critical components separately
Brake, rope/chain, hook, drum, gearbox, wheels, runway, motor, connections and electrical/control components do not age at the same rate. Record findings by component group.
- Brake and load path
- Drum and gearbox
- Wheel and runway
- Electrical and controls
What does fault history reveal?
Recurring faults, replacement frequency, unplanned downtime and intervention cost can show where structural or technology improvements deserve attention.
- Recurring faults
- Replacement frequency
- Unplanned downtime
- Intervention cost
Maintain, overhaul or replace?
Decide by combining safe operability, parts availability, structural condition, process needs and lifecycle cost. The goal is not simply to replace old parts, but to select the technical path that supports production.
- Safe operation
- Parts availability
- Process need
- Lifecycle cost
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