gantry crane rules

1. Gantry crane respond brakes, hooks, ropes and safety devices and other components required check card check and found abnormal, magnet crane should be thoroughly excluded. The operator must confirm the walkway or on unmanned orbit, we can close the main power supply. When there are signs on the lock or power circuit breaker, the person shall be closed original main power removed. 2. Gantry crane working class for the first time when lifting heavy objects (or the maximum load weight), should be lifting height of 0.5 meters from the ground after the heavy down again, check the brake performance, reliable after confirmation then normal operation. Operator in the job, should be required for the following operations to ring the alarm. ① lifting, landing weight; great start when the car driving. ② traveling gantry crane is unclear when the line of sight through to continuous-ringing alarm; ③ traveling crane when the crane near the cross in another. ④ lifting heavy objects near the staff. Operation running under a unified command signal should be. Work in a power outage, the controller should handle all placed in the "zero" position, re-work should be checked before the crane movements are normal. Large cranes, trolley during normal operation, parking brake open anti prohibited; transform large trolley direction of movement, the handle must be placed in the "zero" position,  crane spare partso that after a complete stop functioning institutions in order to reverse to drive. There are two hooks of the crane, when the main and auxiliary hook switch to time and two hooks highly similar, the main and auxiliary hook must work alone, in order. to avoid a collision of two hooks. 3 gantry crane hook after work should be raised to a certain height, carts, trolley stops at the specified location, the controller handles placed in the "zero" position; pull down the protective box switch handle, cut off the power. Routine maintenance. Do shift work.