Pre-Operational Inspection and Daily Checks
Pre-Operational Inspection and Daily Checks
Before each shift, the operator must perform a pre-operational inspection covering: structure (mast, jib, pendants for cracks or corrosion), safety devices (moment limiter, limit switches, anemometer, anti-collision), hoist rope (broken wires, wear, lubrication), brakes, hydraulics (for luffing/climbing), electrical systems, and cab instruments. A daily checklist is required by most standards and must be documented.
Traps: skipping checks because the crane was inspected weekly or monthly; assuming limit switches are optional; and forgetting to test emergency stop and audible alarm. Another trap: the anemometer must be calibrated and functional-wind speed is critical. Also, rope inspection criteria (e.g., number of broken wires per lay) are often tested.
Worked example / rule of thumb: Use the “look, listen, feel, test” approach: visually inspect, listen for unusual noises, feel for vibrations, and test controls and limits. A common rule: if any safety device is faulty, do not operate-report and tag out. Document the inspection; a signed checklist is your proof.