2013年7月17日星期三

Lifting measures to prevent tipping


     1 lever hoist traveling on the road must be flat, solid, reliable, parking place must be flat.
(2) shall not be parked on the ramp lane lift hoist work, not covered with or outrigger lift hoist two parts of one high and one low residence or a hard and soft soil.
3 lifting components, the sling should remain vertical, shall not exceed the radius of gyration lift hoist drag diagonally to avoid overload and wire rope slippage, or pull off the ropes leaving the lift hoist instability. Lifting heavy component should be set pull rope.
4 operation of a Chain Block, arm lifting, lowering, turning to a smooth, not in the air, shake, and to try to avoid emergency braking or impact vibration phenomenon. Failing to take technical measures and without the approval of the relevant technical departments, non overload hoisting lift hoists to avoid accelerated wear of mechanical parts and causing the lift hoist tipping.
5 lift hoists running at full capacity should be avoided; at full load or near full load, is strictly prohibited simultaneously upgrading and turning (turning or lifting and horizontal lifting and walking) two actions, so as to avoid uneven roads or other reasons inertial force causing the lift hoist overload and lead to a rollover accident.
6 When two simultaneous operation of hoisting machinery, the two machines hook should be maintained between the suspension means more than 5m safe distance to avoid a collision.
7 double lift lift hoist components, according to the lift hoist lifting capacity for a reasonable load distribution (quality hoists shall not exceed two lift hoists from the weight of the sum of the allowed 75% of each lift hoist load should not exceed its security load of 80%). Operation, must be under the unified command, motor coordination, while lifting and moving, and make two lift hoist hooks, pulley block should basically remain vertical. Two lift hoists driving staff to closely cooperate with each other to prevent a lift hoist weightlessness, leaving another load chain overload.
8 when lifting, should be specifically responsible unified command, commanding officers should be located in the operator's visual capacity and location, and can clearly see the lifting of the entire process. lift hoist drivers must be familiar with the signal, press the commanding officers of the various signals to operate; unified command signal should be specified in advance, the signals should be clear and accurate.
9 is equal to or greater than six of the wind, the prohibition in the open air lift hoist moving and lifting operations.
10 lift hoist stops working, and travel agencies should be stopped turning, lock the cab door. Not on the hook suspension components, and should be raised to a height to avoid wounding and causing lift hoist swing instability.

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