Test the delivery winch
1. Maintenance of a single hoist, the hoist is overhauled stop, the CAM controller switch to the "0" position, and the CAM controller is hung on the "maintenance is prohibited closing" maintenance plate.
2. Remove the steel wire rope and trolley of the single hoist being inspected;
3. Check and repair 2 hoisting machines. When the hoisting machine under repair stops, cut off the power in the power box of the hoisting machine.