Columbus McKinnon CM Hoist B-2

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

Slack the chain for inspection.

Inspect the chain link-by-link for issues

Is the chain worn beyond serviceable limits?

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

Is the chain worn beyond the length indicated in Figure 15?

Examine hoist components for wear

Check for visible damage on the hook

Measure the twist angle of the hook

Is there excessive opening or seat wear?

Does the latch engage the tip of the hook properly?

Does the latch operate properly with sufficient spring pressure?

Does the latch spring back to the tip when released?

Handle and dispose of lubricants as directed in applicable material safety data sheets and in accordance with applicable local, state, and federal regulations.

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

Do not degrease or disassemble the ProtectorTM.

If gears are removed, wipe excess grease from ProtectorTM surfaces and degrease remaining gears and housings.

Add 7 oz. of Century Lubricants HB-11, #3 grease to gears and housing upon reassembly.

Coat the spline on the end of the drive shaft with a molydisulphide lubricant such as 'Super Herculon.'

Apply a light film of machine oil to the limit switch shaft threads at least once a year.

Ensure the area is clean and free from obstructions

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

Inspect the load chain for dirt and debris

Clean the load chain if necessary

Apply Lubriplate Bar and Chain Oil 10-R to the load chain

Ensure natural run-off and full coverage of the lubricant

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

Model Specific Inspection (Models RT, RT-2, RRT and RRT-2)

Inspect shackle and lug pins for wear

Check dead end screw in lower hook block for wear and tightness