Electric wire rope hoist instructions
1, first install or re assembly of the electric wire rope hoist, should first be no-load operation, but to ensure that the components to be installed, not power.
2, in normal use should be carried out to 125% of the rated load, lift from the ground about 100 mm, static load tests for 10 minutes, and check whether it is normal.
3, dynamic load test is based on the weight of the rated load, repeated movements move around the test, check the mechanical transmission part of the test, electrical part and the connection part of the normal and reliable.
4, in use, the absolute prohibition in no circumstances, and exceeds the rated load and rated closing times per hour (120) use case.
5, installation and maintenance, must strictly limit device is flexible and reliable, when hook up first limit position, the hook to the drum shell casing distance must be greater than 50mm (10t, 16t, 20t must be greater than 120mm). When the hook to the lower limit position, should guarantee the safety of steel wire rope on the drum circle, effective security ring must be 2 laps more than.
6, do not allow the press the two so that the electric hoist in the opposite direction movement of the hand switch button.
7, after the power gate opened, cut off the power supply.
8, electric hoist should be to hand manipulation, the manipulator should fully grasp the rules of safe operation, no slanting pull cable crane.
9, it must be regularly by the specialized personnel to check the electric hoist, found that failure to take timely measures, and carefully recorded.
10, adjust the electric hoist brake decline, should ensure that the rated load, brake slide S ≤ V/100 (V load is stable in the next minute lifting distance).
Scrap, steel wire rope standard 11: Test of rope and scrapped according to standard of CB/T5972-1986 "crane wire rope inspection and rejection of practical norms" execution.
12, electric hoist use must keep enough oil, and keep the oil clean, should not contain impurities and dirt.
Should use a stiff brush or wood piece 13, wire rope oiling, prohibited by hand directly to the working rope oil.
14, electric hoist does not work, do not allow heavy objects hanging in the air, to prevent the parts from the permanent deformation.
15, in the use process, if found fault, should be immediately cut off the main power supply.
Special attention should be paid to the vulnerability of the situation, the use of 16.
17, 10~20 tons of gourd run continuously in long time, automatic power-off phenomenon may occur, which belongs to the motor overheating protection function, which can be decreased, over a period of time, to be the motor cooling down can continue to work.
18, use and management according to JB9009-1999 "electric wire rope hoist safety regulations" in the fourth executive.
19, examination and repair according to JB9009-1999 "electric wire rope hoist safety regulations" in the fifth executive.