A, gantry crane before work 1, of the crane brake, hook, rope and safety device parts inspection, according to the requirement of the check card of abnormal phenomenon, should be ruled out. 2, the operator must be confirm there is no person, walk or orbit can be closed the main power supply.Lock on when the power supply circuit breaker or a billboard, should by the relevant people get rid of rear can close the main power supply. Second, the gantry crane work 1, lifting heavy objects for the first time (or load reaches maximum weight), should be after hanging from the ground 0.5 meters high, restore the weight down, check the brake performance, after confirmation and reliable, and then to normal operation. 2, the operator during the crane operations, should be in accordance with the provisions of the following assignments ring the police.(1) the lifting and landing weight;When to start the big, the car driving;(2) the crane in the line of sight not clear through the continuous ring alarm;(3) crane traveling close to cross inside another crane.(4) when lifting heavy objects close to the staff. 3, in the operation of the operation should be according to the unified regulation of command signal. 4, work suddenly loses power, should put all of the crane controller handles at "zero", should check whether the crane operation is normal before back to work. 5, large crane, the car in normal operation, it is strictly prohibited to open the car parking brake.Transformation, the car movement direction, handle must be placed in the "zero", make the agency after completely shut down, can reverse driving. 6, there are two hook of the crane, the main and deputy clasps in time and two highly similar, main, secondary hook must separate operation, to avoid a collision of two hooks. 7, two crane hook is allowed to hook hanging two items at the same time;Don't work to adjust the lifting mechanism under the condition of the brake. 8, are not allowed to use limit position limiter, parking is prohibited in cases with load lifting mechanism brake adjustment. 9, crane shall strictly implement the system of "ten don't hanging" : (1) command signal is unknown or disorderly command not mourn; (2) more than rated lifting weight when not mourn; (3) sling used unreasonable or objects bound to hang not firm not hanging; (4) hanging on someone or have other floating put items not mourn; (5) the brake or other braking safety device failure not mourn; (6) driving hanging heavy objects directly processed without hanging; (7) cant hang on don't mourn; (8) explosive objects don't mourn; (9) buried objects don't pull out hanging; (10) with edges and corners of mouth hanging objects, not mat. 10, if discovery is unusual, immediately stop and check the reason and ruled out in time. Three, gantry crane work 1, the crane hook up to a certain height, cart, the car parked in the designated position, the controller handles placed in the "zero";Down protection case switch handle, cut off power supply. 2, for the daily maintenance of crane. 3, to do a good job of succession.