Columbus McKinnon CM Hoist RT

Clean the load chain with a non-acid or non-caustic type solvent.

Slack the chain and inspect each link for nicks, gouges, twisted links, and excessive wear or stretching.

Is the chain worn beyond serviceable limits?

Check gage lengths as indicated in Figure 15.

Is the chain worn beyond the indicated length, nicked, gouged, or twisted?

Ensure the chain is clean, free of twists, and pulled taut before measuring.

Examine the hoist’s chain guides, hook blocks, and liftwheel for wear.

Ensure all lubricants are handled and disposed of according to safety data sheets and regulations.

Verify ProtectorTM is lubricated with Century Lubricants HB-11, #3 grease.

Ensure ProtectorTM has not been degreased or disassembled.

Check if gears have been removed from the housing.

Wipe excess grease from ProtectorTM surfaces if gears were removed.

Degrease remaining gears and housings if necessary.

Ensure the area is clean and free from obstructions

Gather necessary materials: Lubriplate Bar and Chain Oil 10-R or equivalent

Check if the load chain is clean before lubrication

Apply Lubriplate Bar and Chain Oil 10-R to the load chain until natural run-off and full coverage is achieved

Confirm that motor oils are not used as a lubricant

Wear appropriate personal protective equipment (PPE)

Check for visible damage on the hook

Does the hook allow the latch to not engage the tip?

Inspect the latch for damage or bending

Does the latch operate properly with sufficient spring pressure?

Does the latch spring back to the tip when released?

Load Sustaining Parts Inspection

Inspect other load sustaining parts for damage

Check for external evidence of issues

Inspect brake for evidence of slippage

Test control functions for proper operation

Check load chain for proper reeving and twists

Inspect chain guides for wear or burring

Model Specific Inspection for RT, RT-2, RRT and RRT-2

Inspect shackle and lug pins for wear