Electric wire rope hoist maintenance practices guidance
Electric wire rope hoist maintenance practices guidance
Newly installed or installed after dismantling the wire rope electric hoist, should first be empty commissioning several times. But not pre-installed, avoid power-commissioning.
2. Should be carried out before the normal use of 125% of the rated load, lifting off the ground about 100 mm, 10-minute static load test, and check whether it is normal.
Dynamic load test is based on the weight of the load rating for repeatedly lift and move around test after test to check the mechanical transmission parts, electrical parts and connected parts is normal.
Use not allowed in the environment, and exceed the rated load and hourly rated switch (120) in the case of using absolute prohibition.
Installation, commissioning and maintenance must strictly check limit device is flexible and reliable, when hook up to the upper limit position, the hook shell to roll the shell of the distance must be greater than 50mm (10t, 16t, 20t must be greater than 120mm ). When the hook down to the lower limit position, should ensure the the reel wire rope safety circle, the the effective security ring must be more than 2 laps.
6 are not allowed at the same time press the two flashlight door button electric hoist movement in the opposite direction.
Work after must be the power of the total gate opened, cut off the power supply.
Electric hoist shall be the person to manipulate the manipulator should fully grasp the safety procedures, non-crooked pull oblique hanging.
Use by specialized personnel must regularly electric hoist inspection found that the failure to take timely measures, and carefully recorded.
10. Adjust the the electric hoist brake decline amount, should ensure that the rated load, the amount of brake decline the S ≤ V/100 (V liter from the stable load in the next minute distance).
Lifting machinery utility specification wire rope inspection and retirement of implementation a scrapped standard 11. Rope: wire rope inspection and end-of-life standards CB/T5972-1986 ".
12 electric hoist use must keep enough oil and lubricants clean, and should not contain impurities and dirt.
13. Should use a stiff brush or wooden small piece of rope oil and non-oil hand directly to the working rope.
14. Electric hoist does not work, do not allow the weight suspended in the air, to prevent parts from permanent deformation.
15 during use, and if found fault should be immediately cut off the main power supply.
16. Should pay particular attention to the use of wearing parts.
17.10 to 20 tons gourd in continuous operation for a long time, the automatic power-off phenomenon, which is a motor overheating protection function can decline over a period of time, you can continue to work until the motor has cooled down.
18. Use and management JB9009-1999 "wire rope electric hoist safety procedures in four execution.
19. Inspection and maintenance by JB9009-1999 "wire rope electric hoist safety procedures in the first 5.