Chain lever hoist chain maintenance how to proceed

Chain  lever hoist  chain can be improved lifting objects of different heights can adjust the length of the chain is essential for the crane, it is important to improve the extract unit operating efficiency crane crane operation to expand the range plays an important role in the ring chain lever  lift hoist  chain maintenance how to proceed, the following details for you.

1 sprocket mounted on the shaft should not skewed and swing. In the same drive sprocket assembly in two end should be in the same plane, the sprocket center distance of 0.5 meters, the tolerance chain of 1 mm center distance of 0.5 meters above, the allowable deviation of 2 mm. But not with friction sprocket side phenomenon, if two series move too prone to derailments and accelerated wear. Replacing the sprocket must be careful to check and adjust the offset.
(2) the tightness of the chain should be suitable, tight increase power consumption, bearing wear chain is too loose and easily beating off chains. The tightness of the chain: from the middle of the  load chain  lift or pressure, the two sprocket center distance of about 2% -3%.
3 or by the use of chain elongation after long, difficult to adjust, remove links to look at the situation, but must be an even number. Back through the chain link should the locking plate inserted on the outside, the opening of the lock piece to be rotated in the opposite direction towards the.
4 sprocket wear serious, it should also be replaced with new sprocket and a new chain, to ensure good engagement. Not just a single or a new replacement chain sprocket. Otherwise it will cause poor acceleration engaging new chain or a new sprocket wear. Sprocket tooth wear to a certain extent should be promptly turned over to use.
5 The old part of lifting chain with a new chain can not be mixed with, or easy to have an impact in the drive, pull off the chain.
6 Lifting chain timely to remember at work filling oil. The lubricants must enter roller and inner sleeve with the gap in order to improve working conditions in order to reduce wear and tear.