HC 20 Ton Large Tonnage Wire Rope Electric Hoist

Use and maintenance of electric hoist

1. The electric hoist that is newly installed or installed after disassembly and inspection should first be tested for several times in an empty car. but the installation is complete, do not try to turn on the power.

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

3. The dynamic load test is based on the rated load weight, repeated lifting and moving left and right 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 forbidden to use it in an environment that is not allowed, and when it exceeds the rated load and the rated number of closings per hour (120 times).

5. During installation, commissioning and maintenance, you must strictly check whether the limit device is flexible and reliable. When the hook is raised to the upper limit position, the distance between the hook shell and the drum shell must be greater than 50mm (10t, 16t)

20t must be greater than 120mm). When the hook is lowered to the lower limit position, the safety circle of the steel wire rope on the drum should be ensured, and the effective safety circle must be more than 2 circles.

6. It is not allowed to simultaneously press two flashlight door buttons that make the electric hoist move in opposite directions.

7. After the work is completed, the main switch of the power supply must be opened to cut off the power supply.

8. The electric hoist should be operated by a dedicated person, and the operator should fully grasp the safe operation regulations, and it is strictly forbidden to pull the inclined crane.

9. In use, the electric hoist must be inspected regularly by specialized personnel, and measures should be taken in time when the fault is found, and carefully recorded.

10. When adjusting the braking sliding amount of the electric hoist, ensure that the braking sliding amount S≤ under the rated load V/100 (V is the distance of stable lifting within a minute under load).

11. The scrap standard of wire rope: The inspection and scrap standard of wire rope shall be implemented according to CB/T5972-1986 "Practical Code for Inspection and Scrap of Wire Rope for Lifting Machinery".

12. During the use of electric hoist, sufficient lubricating oil must be kept and the lubricating oil must be kept clean and free of impurities and dirt.

13. When oiling the steel wire rope, you should use a hard brush or small wooden piece. It is strictly forbidden to directly oil the working wire rope by hand.

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

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

16. Special attention should be paid to wearing parts during use.

17.10-20 ton hoist may automatically power off after a long time of continuous operation. This belongs to the motor's overheating protection function. It can be lowered at this time. After a period of time, the motor can continue to work after it has cooled down.

Hot Tags: hc 20 ton large tonnage wire rope electric hoist, China, factory, manufacturers, suppliers, made in China