electric hoist through sling which is consists of pulley, rope and hook to lift objects, so the inspection and maintenance of electric hoist pulley system should strengthen from the following several aspects to prevent the accident.
1, routine maintenance should focus on checking pulley cracks appear, it can also be viewed through a magnifying glass. The pulley should be disposed immediately if found cracks . The electric hoist pulley system continue to use is forbidden by welding cracks.
2, check whether there is intense friction between the electric hoist pulley system grooves and wire rope, whether there is a phenomenon of wire rope disengage from the grove
3, check the wear degree of electric hoist pulley system. The electric hoist pulley system should be scrapped immediately if the wear degree beyond the scope of design and replace the electric hoist pulley system to ensure the operation safety .
4, Check whether the pulley shaft is connected firmly, pulley rotation is flexible, there is no abnormal noise. It shall be fixed monthly check, and electric hoist pulley system lubricate, ensure its good working condition.
