Tower Crane Daily Operator Inspection Checklist

Verify all mast bolts are present, tightened to the manufacturer's specified torque, and show no signs of corrosion or damage. Use calibrated torque wrench.

Inspect the slewing ring for cracks, excessive wear, or loose bolts. Check lubrication levels and ensure proper function.

Examine all jib sections for any signs of bending, buckling, or weld cracks. Pay close attention to connection points.

Confirm that all counterweights are securely attached and properly positioned according to the crane's load chart. Verify locking mechanisms are engaged.

Using a level, verify the tower is plumb and within the manufacturer's specified tolerance. Note any deviations.

Inspect all tie-in supports to the building structure for proper attachment and condition. Ensure no signs of stress or damage.

Visually inspect the crane's foundation for any signs of cracking, settling, or water damage. Report any concerns to the site engineer.

Inspect the access ladder for damaged rungs, loose connections, and proper fall protection (if applicable).

Verify the crane is in weather-vaning mode when out of service and that the slewing brake is released.

Confirm that all lubrication points are adequately greased according to the manufacturer's recommendations.

Measure the wire rope diameter at multiple points to check for wear and ensure it meets the minimum allowable diameter specified by the manufacturer. Document measurements.

Inspect the wire rope for signs of birdcaging, kinking, crushing, or unstranding. Replace if any of these conditions are present.

Examine the wire rope for corrosion, especially at points where it passes over sheaves or drums. Note the severity and location of any corrosion.

Inspect the hoist drum grooving for wear or damage that could cause the wire rope to spool unevenly. Ensure proper alignment.

Verify that all sheaves are free to rotate and are properly lubricated. Check for cracks, chips, or excessive wear.

Inspect the hook latch for proper function and ensure it securely closes. Replace if damaged or missing.

Check the hook for any signs of deformation, cracks, or wear. Use a calibrated gauge to measure the throat opening.

Confirm that the wire rope is properly reeved according to the crane's load chart and reeving diagram.

Inspect rope terminations (e.g., swaged sockets, clips) for proper installation and condition. Ensure they are free from corrosion and damage.

Inspect the load block for any signs of damage, including cracks, deformation, or excessive wear. Check the condition of the bearings.

Verify the Load Moment Indicator (LMI) is functioning correctly by performing a test lift with a known weight. Compare the LMI reading to the actual load.

Test the Anti-Two-Block (ATB) system to ensure it activates before the hook block comes into contact with the boom tip. Confirm audible and visual alarms are functional.

Test the hoist brake by lifting a load slightly off the ground and observing for any slippage. The brake should hold the load securely.

Test the trolley brake (if applicable) to ensure it stops the trolley smoothly and prevents uncontrolled movement.

Test the slewing brake to ensure it stops the crane's rotation smoothly and prevents uncontrolled slewing.

Verify that all limit switches (e.g., hoist limit, trolley limit, slewing limit) are functioning correctly and prevent movement beyond safe limits.

Check the wind speed indicator (anemometer) and ensure it is functioning properly. Know the crane's maximum allowable wind speed.

Inspect all control levers for smooth operation and proper return to neutral. Ensure they are clearly labeled.

Test the emergency stop button to ensure it immediately shuts down all crane functions.

Verify the crane's horn or audible warning device is functioning properly.

Ensure the crane's load chart is readily available and legible to the operator.

Review the crane's inspection records to verify that all required inspections have been performed and documented.

Verify that the crane operator is certified or qualified to operate the specific type of crane.

If a signal person is required, verify that they are qualified and understand the hand signals being used.

Ensure that a reliable communication system (e.g., radio, hand signals) is in place between the operator and signal person (if applicable).

Review the site hazard assessment to identify any potential hazards that could affect crane operations (e.g., power lines, underground utilities).

Review the lift plan (if required) to ensure it addresses all critical aspects of the lift, including load weight, rigging, and crane configuration.

Ensure the daily inspection log is completed accurately and any defects are reported immediately.