I don't think it will be difficult for you to do the maintenance work for this travelling block, for its construction is quite simple.

When hoisting any large or heavy equipment off the catwalk always check the Working Load Limit (WLL) of the air winch, or use the travelling block or crane if available.

Then in accordance with classification method of the passive, active and semi-active system, the performance of compensator mounted between travelling block and hook is studied deeply.