"Special personnel" refers to each person responsible for a project, which is the same for hand -stretching gourds. It has clear requirements for users and maintenancers. Therefore, the use of maintenance methods is also an essential skill for the responsible party of the hand to pour the gourd. 1. After using it, clean the gourd and apply rusty oil to store it in a dry place to prevent the hand stretching the gourd to rust and corrodes. 2. The maintenance and maintenance should be carried out by those who are more familiar with the gourd mechanism. Clean the gourd parts with kerosene and lubricate it in the gear and bearing parts to prevent those who do not understand the performance principles of the machine at will. 3. After cleaning and maintenance, the vacant test should be performed to confirm that the work is normal and the braking is reliable before it can be delivered. 4. The surface of the brakes must be kept clean. The brake part should be checked frequently to prevent braking failure and heavy objects. 5. When installing the braking device, the handle gourd should pay attention to the well -meshing of the altitude of the spiny wheel and the pawy paw. The rubbing tablet is tightly sitting on the brake, rotating the sprocket wheel against the time, and there should be a gap between the spiny wheels and the friction tablet. 6. In order to maintain and disassemble the convenience, one of the bracelets is the opening chain (not allowed to be welded). 7. During the process of refueling and using hand -pinos, the friction surface of the brake device must be kept clean, and the braking performance is often checked to prevent braking failure from causing heavy objects to fall. 8. The roller of the bearing of the bearing of the bearing of the handle of the hand in hand can be adhered to the inner ring of the bearing in the bearing that is pressed on the nephew of the lifting sprocket, and then put it in the bearing outside the bearing of the wall plate.