Electric wire rope hoist safety procedures
Electric wire rope hoist safety regulations - national industry safety norms procedures Standards Ordinance system
I. General
1.1 In order to regulate the day-to-day use of electric hoist and maintenance, to ensure the safety of electric hoist run, stable, must strictly implement the relevant requirements of the safety procedures.
1.2 This procedure applies to Demarco Lifting Machinery Co., Ltd. production system configuration model electric hoist.
1.3 Statutes reference standard: JB9009-1999 "wire rope electric hoist safety procedures
The use of wire rope electric hoist debugging / checking
2.1 new installation or after dismantling the electric hoist, first empty commissioning should be carried out several times. Not installed, non-power operation.
2.2 installation or commissioning, must strictly check limit device is flexible and reliable, when the the hook rise to the upper limit position, the hook shell to roll shell distance must be> 50mm (10t, 16t, 20t must be greater than 120 mm). When the hook down to the lower limit position, roll wire rope safety circle should ensure effective security circle must be more turns.
2.3 before use should be lifted off the ground about 100mm, 10 minutes from the static load test, 125% of the rated load, and check whether it is normal.
2.4 before use to confirm brake reliability condition; adjust the upper and lower limit stop module.
2.5 pre-use check to confirm the wedges are securely installed, and reliable.
2.6 before use check wire rope is normal, such as bending, deformation, corrosion or wear serious degree of fracture than required, non-operation.
Third, the use of electric wire rope hoist Note
3.1 electric hoist manipulated by hand, the manipulator should fully grasp the safety procedures.
3.2 electric hoist in use by the hand check, pay particular attention to the situation of wearing parts, found fault should be immediately cut off the main power, to take timely measures, and carefully recorded.
3.3 electric gourd use absolute prohibition in disallowed environment, and exceed the rated load and hourly rated closing times (120 times).
3.4 electric hoist in use, you must maintain a sufficient lubricating oil, and guarantee clean lubricants should not contain impurities and dirt.
3.5 electric hoist is prohibited by people, non-stand at the bottom of the lifting objects, non-lifting in the swing state of non lifting objects connected to the ground.
Fourth, the maintenance of electric wire rope hoist
4.1 electric hoist does not work, does not allow the weight hanging in the air, to prevent parts from permanent deformation.
4.2 electric hoist maintenance work must be carried out in a no-load condition.
Decline in the amount of 4.3 to adjust the electric hoist brake, should ensure that the rated load, braking the decline in the amount of S ≤ V/100 (V load in the next minute stability liter from the distance).
4.4 rope oiled, you should use a stiff brush or wooden small piece of non-oil hand directly to the working rope.
4.5 rope scrapped standards: wire rope inspection and scrap reference GB/T5972-1986 "lifting machinery wire rope inspection and end-of-life practical norms implementation.