Problem for DHP 7.5T electric chain hoist, chain 5 meter

Keyword:DHP 7.5T electric chain hoist   Time:2021-6-23 21:13:27

Customer: I have some problem of electrical hoist 7.5 T, can you advise to me ?

DHP 7.5T electric chain hoist, chain 5 meter-2.jpg

And some unit hoist Chain it slip down when stop ,Can you advise time for how to maintenance ?

I mean when lift it and stop level , the chain of hoist it slowly slip down by uncontrollable.

lifting height is about 2.5T only (average is 2.5T)