Cautions on the use of wire rope electric hoist

- Jan 25, 2018 -

Cautions on the use of wire rope electric hoist

1, the first installation or reassembly of the wire rope electric hoist, should first carry out the operation of unloaded operation, but to ensure that the assembly should be installed, no electricity.

2.. Before normal use, 125% of the rated load should be carried out, up to 100 mm from the ground, 10 minutes of static load test, and check whether it is normal.

3, dynamic load test is based on the rated load and weight. It's repeated lifting and moving tests. After testing, check whether the mechanical transmission parts, electrical parts and connecting parts are normal and reliable.

4. In use, it is absolutely forbidden to use under the circumstances that are not allowed, and more than the rated load and the number of rated closing times per hour (120 times).

5, when installing, debugging and maintaining, it is necessary to strictly check whether the limit device is flexible and reliable. When the hook reaches the limit position, the distance between the hook shell and the drum shell must be greater than 50mm (10t, 16t, 20t must be larger than 120mm). When the hook is reduced to the lower limit position, the safety ring of the wire rope on the drum should be guaranteed, and the effective safety ring must be above 2 cycles.

6, do not allow while pressing the two electric hoist movement in the opposite direction of the switch button.

7. After the work is finished, the power supply must be pulled apart and the power supply is cut off.

8. The electric hoist should be manipulated by a special person. The operator should fully master the safety operation regulations and strictly prohibit skew hanging.

9, in use, it is necessary to check the electric hoist regularly by the specialized personnel, find out the fault and take measures in time, and carefully record it.

10, adjust the glide quantity of electric hoist, should ensure that the rated load, brake glide quantity S (V = V/100 for stable load in the next minute lifting distance).

11, the standard of scrap of wire rope: the inspection and scrap standard of wire rope are carried out according to the practical code for inspection and scrap of steel wire rope used by crane CB/T5972-1986.

12, the use of electric hoist must maintain sufficient lubricating oil, and keep the oil clean, should not contain impurities and dirt.

13. A hard brush or a wooden piece should be used when the wire rope is oil. It is strictly forbidden to use hand directly to oil the working wire rope.

14. When the electric hoist is not working, it is not allowed to hang the heavy objects in the air to prevent the permanent deformation of the parts.

15, in the process of use, if a fault is found, the main power supply should be cut off immediately.

16, special attention should be paid to the condition of vulnerable parts in the use.

17, 10~20 tons of gourd can be automatically cut off after long time running. This is the overheating protection function of motor. At this time, it can be reduced, and it will continue to work after a period of time when the motor is cooled down.

18, the use and management of the JB9009-1999 "wire rope electric hoist safety regulations" in the fourth execution.

19, inspection and maintenance according to the JB9009-1999 "wire rope electric hoist safety regulations" in the fifth execution

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