1. After the application of the hoist, the hoist should be cleaned and coated with anti-rust grease and stored in a monotonous place;
2. Maintenance and overhaul should be carried out by the person who understands the hoist arrangement, to prevent the person who does not understand the function of the machine from disassembling;
3. The gear equipment is operated according to the drawings;
4. When the groove nut device is used, the handwheel should be turned clockwise to press the ratchet and the contact piece against the brake air seat to install the slot nut;
5. After the hoist has passed the cleaning inspection and maintenance, the no-load and heavy-load tests should be carried out, and the confession operation is normal and the automatic and reliable communication is used. It is necessary for the contact surface of the brake to be clean and to prevent contamination of the sludge.