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Use And Maintenance Of Electric Lifting Chain Hoist
- Jun 27, 2018 -

Use and maintenance of electric lifting chain hoist

1. The newly installed electric lifting chain hoist or the electric lifting chain hoist installed after dis-assembly and inspection shall, first of all, run several times in an empty test run.But before the installation is complete, do not turn on the electricity test.

2. Before normal use, static load test should be conducted with rated load of 125%, lifting about 100mm from the ground and 10 minutes' static load test to check whether it is normal.

3. Dynamic load test is conducted with rated load weight for repeated lifting and left and right moving tests. After the test, check whether the mechanical transmission part, electrical part and connection part are normal and reliable.

4. In use, it is absolutely prohibited to use the product in an environment that is not allowed, and beyond the rated load and the rated closing times per hour (120 times).

5. Installation and maintenance, must strictly check whether the spacing device is flexible and reliable, when the hook rose to the limit position, hook enclosure to the drum shell of distance must be greater than 50 mm (10 t, 16 t, 20 t must be greater than 120 mm).When the hook drops to the lower limit position, the steel wire rope safety ring on the drum shall be ensured. The effective safety ring must be more than 2 circles.

6. It is not allowed to press two hand-operated door buttons at the same time to move the electric lifting chain hoist in the opposite direction.

7. After the completion of work, the power supply must be pulled open to cut off the power supply.

8. The electric lifting chain hoist shall be operated by a special person, and the operator shall fully master the safety operation rules, and it is strictly prohibited to pull the inclined crane sideways.

9. In use, special personnel must regularly check the electric lifting chain hoist, take timely measures when finding faults, and record them carefully.

10. When adjusting the braking slip of electric lifting chain hoist, it shall ensure that the braking slip S is less than or equal to V/100 under rated load (V is the distance from stable lifting within one minute under load).