How to do maintenance work in the use of explosion-proof electric hoist?

1.Each newly installed electric hoist, first of all should be idled several times.

2.Before normal use, should be carried out rated load and excess load of 10% dynamic load test, repeated lifting, check its transmission mechanism, electrical part and connection part is normal and reliable.

3.The static load test of 25% of the fixed load, lift the load from the ground about 100mm, suspended for 10 minutes, remove the load to check whether it is normal.

4.In use, it is prohibited to use in an environment that is not allowed to exceed the rated load.

5.It is not allowed to use inclined lifting and horizontal dragging tools, and it is not allowed to lift buried objects.

6.The limiter is to prevent the hook rise and fall beyond the limit position caused by the accident set device, so can not be used as a switch.

7.After the work is finished, pull the main switch of the power supply, cut off the main power supply.

8.Explosion-proof electric hoist should be operated by a special person, the operator should master the relevant explosion-proof operation procedures.

9.The explosion-proof electric hoist should be inspected by specialized personnel at least every ten days, and timely measures should be taken after problems are found, and carefully recorded.

10.Check the explosion-proof motor, explosion-proof control box, explosion-proof limit switch, explosion-proof button switch to remove the explosion-proof shell, first cut off the main power supply, carefully disassemble.

11.When disassembling, the flameproof surface should be strictly protected to prevent collision, resulting in bruises on the flameproof surface and resulting in explosion transmission. When the flameproof shell is cracked and breathable, and the flameproof surface is damaged, it will be scrapped. Install the flameproof shell and tighten each bolt, strictly prohibit loosening.

12.Each mechanism should operate smoothly, hook without jitter, reliable braking, braking slip S should meet the following requirements: S<=v>

13.The steel wire rope used at room temperature at least once a week lubrication, the use of adaptive tools (such as hard brush or smooth clean wood) grease evenly coated on the steel wire rope, winter temperature is low, the grease must be heated.

14.The shift should check whether the wire rope is bent, knotted, whether the rope is prominent or too twisted, whether the surface has signs of torsion, whether the rope strand and individual wire rope are broken, whether the end of the rope is firm, whether the wire rope is clean, whether the lubricating oil is enough.

15.When the explosion-proof electric hoist is working, it is strictly prohibited to suspend the load in the air for a long time to prevent the deformation of the parts.

16.In the use of the process, if found bad fault, should immediately cut off the main power supply.

17.When the explosion-proof electric hoist is used, it should be stopped at the designated location, and the hook should be raised to the position of more than 2M according to the ground.

18.Should ensure that the explosion-proof electric hoist has enough lubricating oil, to ensure that the lubricating oil is clean, should not contain impurities and dirt.