Safety Precautions

1, jib crane lifting weights, hook wire rope should be kept vertical, oblique tow was hanging objects are not allowed. 2, the heavy lifting should identify the center of gravity and securely tied. The application has an acute angle skid pad.
3, not the heavy lifting off the ground in front of the crane shall make rotary motion.
4, lifting or lowering heavy loads, the speed should be uniform steady speed to avoid drastic changes, causing heavy swing in the air, dangerous. Falling weights, speed not too fast, so as not to break when landing weight.
5,  hoist crane  case, try to avoid landing arm. Must be ups and downs in the case of lifting arm when lifting weight must not exceed 50% by weight.
6,  hoist crane  the case is reversed, should pay close attention to whether there are obstacles around, if it should try to avoid obstacles or clear.
7, crane boom shall not have staff to stay, and try to avoid people pass.
8, two cranes operating on the same track, the distance between the two planes should be greater than 3m.
9, two cranes lifting an object together, from the weight of not more than two from the weight of 75% of the total, two cranes walk the line, dipping action to be consistent.
10, hoisting, luffing rope must be checked weekly, and make records, according to the specific requirements of the relevant provisions of lifting cables.
11, empty rows or turning away when the hook to more than 2m from the ground.
12, the wind more than six, they should immediately stop working. TMK arm should go off downwind and appropriately low, hang the hook firmly. Gantry crane shall lay the iron wedge (for rail), and rose to ceiling hook. Meanwhile shut doors and windows, turn off the power, pull a good wind cable wire. After the usual work should also do the same.
13, non-stacking crane platform miscellaneous objects even prevent fall injuries in the operation, frequently used tools should be placed in the operating room dedicated toolbox.
14, the operation is not permitted sudden shift or turn the clock back, so as not to cause heavy swing in the air, are not allowed to operate simultaneously two or more (including auxiliary hook) of the operating mechanism.
15, while driving, the operator shall not leave the controller's hand, a sudden failure of the operation, measures should be taken to a safe landing weight, then cut off the power to carry out repairs. In operation, repair and maintenance is strictly prohibited.
16, one of the crane under the following circumstances shall not lift
1, the weight exceeds the rated lifting capacity crane.
2, heavy weight is unknown.
3, the signal is unknown.
4, heavy strapping is not strong.
5, open operation in case of six (beam five) or more wind and heavy rain, fog and other inclement weather.
6, night work lighting is not good.
7, stayed.
8, badly worn rope off shares and someone appeared on the crane or room for maintenance.