Procedures outlined details of gantry crane

Introduced in front of  gantry crane  safety procedures, and today we have to introduce its rules, though a small word, but the content is completely different, crane operating procedures including the work before work and after work these three part, as follows.
First, before work
1 brakes for cranes, hook, wire rope and safety devices and other components according to the requirements of the check card, it was discovered anomalies, should be excluded.
(2) The operator must take the stage or in the confirmation on track when no one can close the main power supply. When the power supply circuit breaker locking or signs, the persons concerned should be removed only after the original closing the main power supply.
Second, the work
1 class first lifting weights (or the load reaches the maximum weight) should be suspended height of 0.5 meters from the ground after the heavy down again, check the brake performance, reliable after confirmation, then normal operation.
(2) the operator of the  eot crane  operation, should be required for the following operations-ringing alarm:
(A) lifting, landing weight; starting big car when driving.
(2) clear line of sight through traveling crane, to continuously-ringing alarm.
(3) Cranes with close cross inside another crane.
(4) when lifting heavy objects close to the people.
(5) operation running under a unified command signals should be.
(3) Operating a power outage, should handle all of the crane controller placed in the "zero" position should be checked prior to re-work the crane movement is normal.
4 large crane, trolley during normal operation, the parking brake open anti prohibited; transform large trolley movement direction, the handle must be placed in the "zero" position, the agency completely stopped, can the reverse drive.
5 There are two hooks of the crane, in the main, auxiliary hook for hook height with time and the two are similar, the main and auxiliary hook must work alone, so two hooks collision.
6 two allowed two hook crane hook lifting two objects simultaneously; does not work in the case adjust the brake lifting mechanism.
7 are not allowed to use extreme position limiter parking is prohibited in the case of a load lifting mechanism to adjust the brake.
Third, work
1 would be elevated to a certain height crane hooks,overhead gantry crane carts, trolley stops at the specified location, the controller handle in the "zero" position; Pull off the protective box switch handle, cut off the power.
(2) carry out routine maintenance of cranes.
3 do shift work.