After the hand-operated hoist is used, the hoist should be cleaned and coated with anti-rust grease. Store it in a dry place during operation, so as to effectively prevent the hoist from being rusted and corroded. In the process of inspection and maintenance, the manual chain hoist should be carried out by a more familiar neglecting mechanism. The hoist parts should be cleaned with kerosene, and the gear and bearing parts should be lubricated with grease to prevent the person who does not understand the performance principle from disassembling. .
The manual chain block should be subjected to no-load test after it has been cleaned and repaired, and it is confirmed that the work is normal. When the brake is reliable, it can be delivered. The friction surface of the brake must be kept clean, and the brake part should be checked frequently to prevent it. The movement is out of order, and the heavy object falls.
The roller of the left and right bearing of the manual chain block lifting sprocket can be used for the butter to adhere to the inner ring of the bearing which has been pressed on the sprocket of the hoisting sprocket and then loaded outside the bearing of the wall plate. Inside the circle. When installing the brake device part, pay attention to the good cooperation between the ratchet tooth groove and the pawl claw. The spring should control the pawl flexibly and reliably. After attaching the hand sprocket, turn the hand sprocket clockwise to the ratchet and friction. The sheet is pressed against the brake seat and the hand wheel is rotated counterclockwise, leaving a gap between the ratchet and the friction plate.