The electric hoist maintenance eighteen principles
Good maintenance of electric hoist, life will be greatly enhanced, the bad electric hoist maintenance easily damaged, resulting in unnecessary losses.
DeMarco lifting electric hoist manufacturing service provider as a professional, summarizes a the eighteen principle of maintenance of electric hoist products:
1, new installation or installed after dismantling the electric hoist, should first be empty commissioning several times. But not before the installation is complete, avoid power-commissioning.
2, prior to normal use, should be carried out to 125% of the rated load, lifting from the ground is about 100 mm, 10 minute of static load test, the check is normal.
Dynamic load test is based on the rated load weight for repeatedly lift and move around test after test to check the mechanical transmission parts, electrical parts and connected parts is normal.
4, in use, the absolute prohibition of in disallowed environment, and more than the rated load and hourly Rated closing times (120 times) case.
5, 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 pressing the two so that the the electric hoist movement in the opposite direction of the flashlight door button.
7, after the work must be the power of the total gate opened, cut off the power supply.
8, electric hoist by hand manipulation, the manipulator should fully grasp the safety procedures, non hanging crooked pull oblique.
9, must be in use by specialized personnel on a regular basis on the 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 the rated load, the amount of brake decline the S ≤ V/100 (V liter from the stable load in the next minute distance).
11 wire ropes scrapped standards: wire rope inspection and end-of-life standards CB/T5972-1986 "lifting machinery wire rope inspection and end-of-life practical specification implementation.
12, the use of electric hoist must keep enough oil and lubricants clean, and should not contain impurities and dirt.
13, wire rope oiled, should use a stiff brush or small wooden tablets, 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, in the use of the process, if we find fault, should immediately cut off the main power supply.
16, should pay special attention to the use of consumable parts.
17, 10 to 20 tons gourd in continuous operation for a long time, the automatic power-off phenomenon, belonging to the motor overheating protection function, which may be reduced at this time, over a period of time, you can continue to work until the motor has cooled down.
18, this is the most important principle to buy the electric hoist to use as a product of their own home, be diligent maintenance, should be the law, we must learn professional knowledge, so professional maintenance!