1.Maintenance of wire rope
1）Do not use un-lubricated wire ropes, and regularly add grease to the work.
2）Each time a new steel wire C-shaped steel rope is replaced, it is repeatedly lifted and lowered, and subjected to dynamic load test.
3）Squeeze and sharp objects are not allowed to be damaged.
4）The connection between the wire rope and the grab, the lifting lugs, etc. must be reliable and checked frequently. Once an abnormality is found, it is immediately excluded.
2．Maintenance of lubrication parts
1）The upper and lower pulley bearings of the grab are refueled once a week.
2）Grab the moving parts regularly once a day
3. Regularly check the connection of each fastener and pin. If it is loose, tighten it in time.