1.

First to find the reason, of chain hoist is basically is in the base of the nose and boxes of this a few parts, is this a few part of the combined use of work, between the interior of the machine is the chain and coal tub, some manufacturers use the chain of specification is not enough, or is not standard, can cause use can appear after a period of time running deviation problem.

2.

General chain hoist equipment, on the base above, are equipped with correct balance device, a simple automatic correction and artificial correction, over large hoist equipment, the use of automatic correction is the most convenient, small lifting device, mostly using artificial correction balanced, over large lifting equipment, can be used in a hopper correction, if is small, still The most common and easiest way to correct balance is to use a lead screw.