Use explosion-proof chain hoists to pay special attention to what?

Proof  chain block are manual hoist one of the more special, said proof chain hoists special is mainly reflected in the selection and workmanship, it is aluminum bronze, beryllium copper as the blank, gourd shell H62 copper alloy, gear must also be after heat treatment, in order to have wear resistance. It is this process of selection and special features it has the proof.


Proof chain hoists are mainly used in potential fire and explosion hazard environment, the job impact during product will not produce friction between mechanical sparks, can effectively prevent fire accidents, the use of the environment and the particularity of the field, so the explosion in the use of hand special attention should also pull hoist the following:
1 explosion-proof hoist shall not overload use.
2, should be recognized before using intact parts, transmission parts and lifting chain oiled, idling conditions are normal.
3, other than strictly prohibited to use human power operated.
4, before the explosion in the use of hoist required to confirm parts intact, smooth transmission of local and lifting chain good idling condition is normal.
     5, check before lifting hook can hang down firmly. Prohibited at the tip of errors such as heavy lifting operations.manual block Lifting chain should be hung vertically, without kink chain link, chain under double hook rack may overturn.
6, the operator should stand on the same plane with the bracelet wheel pulled to start the chain, making bracelets wheel rotates clockwise, you can make the weight increase; reverse pull start chains, weights can slowly descended.
7, proof chain hoists in the lifting process, regardless of rising or falling heavy objects, pulled to start the chain, the force should average flaccid, not too much force, so as not to hand chain jumping or snap ring.
8, proof  manual hoist   lifting weights in a prohibited personnel to do any work under heavy loads or walking, so as not to attack personnel accidents.