1. Wire rope maintenance

(1) Prohibited the use of non-lubricated wire rope, the work should be regularly filled with grease.

(2) Each time the replacement of new steel C-type rope to be subject to repeated lifting and lowering, and dynamic load test.

(3) is strictly prohibited extrusion, sharp objects bruised wire rope.

(4) wire rope and grab, hanging ears and other connections must be reliable, and often check and found abnormalities, to be excluded immediately.

(5) The wire rope is broken up to a specified value within a laying distance, or worn and rusted to 7% of its nominal diameter, and should be replaced immediately.

2. Lubrication parts of the maintenance and maintenance

(1) grapple grab the upper and lower pulley bearing weekly refueling time;

(2) grapple grab bucket moving parts of a regular refueling day;

3. Always check the fasteners, shaft pin connection, such as loose should be tightened in time.