How to maintain the double rail electric hoist
1 new installation or after dismantling after installation of the double rail electric hoist, should first be empty test run several times. But not installed, avoid electric test.
2 normal use should be conducted before 125% at rated load, lift from the ground about 100 mm, static load tests for 10 minutes, 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.
The 4 is in use, the absolute prohibition in no circumstances, and exceeds the rated load and rated closing times per hour (120) cases.
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 not allowed while pressing the two double rail electric hoist in the opposite direction movement of the hand switch button.
7 after the power gate opened, cut off the power supply.
8.double rail electric hoist should be to hand manipulation, the manipulator should fully grasp the rules of safe operation, no slanting pull cable crane.
9 in use must be regularly by the specialized personnel of double rail electric hoist check, found that failure to take timely measures, and carefully recorded.
Adjust the double rail electric hoist 10 brake decline, should ensure that the rated load, brake slide S ≤ V/100 (V load is stable in the next minute lifting distance).
Standard 11: scrap wire rope inspection of wire rope and scrapped according to standard of CB/T5972-1986 "crane wire rope inspection and rejection of practical norms" execution.
12.double rail 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 rope oiling, prohibited by hand directly to the working rope oil.
14.double rail 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 16 in use.
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.