Unserviceable condition of Electric wire rope hoist pulley
Electric wire rope hoist pulley is an important component of the electric hoist, wear to a certain standard will be discarded, otherwise it will damage the wire rope and a great hidden danger to safe production.
1, crack, it should not be used again.
2, the rope groove of uneven wear of 3ram.
3, the rope groove wall thickness wear up to 20% of the original wall thickness.
4, because of wear the bottom rope groove diameter reduction to 50% of the diameter of the steel wire rope.
 5, Defect of wire ropeother damage.