Gantry / semi-gantry crane rules

3.1 Operating ago

a. Operator of check cards at the request of the brake, hook, wire rope and safety devices and other components for inspection, abnormal, should be excluded.

 b. Loosen the rail clamp.

3.2 Work

a. First class lifting weights (or the load reaches the maximum weight) should be hanging height of 0.5 meters from the ground, re-place heavy objects down to check the brake performance, reliable after confirmation, then normal operation.

b. Operator in the job, should be required for the following operations-ringing alarm. ① lifting, landing weight; starting big car when traveling.

② clear line of sight, the  bridge crane  exercise, through to continuous-ringing alarm; ③ crane with close cross inside another crane; ④ when lifting heavy objects close to the people.

c. Operation should be run under a unified command signals.

d. Work in a power outage, should all of the control handle to the "zero" position should be checked prior to re-work the crane movement is normal.

e.  gantry crane  , crane lifting the car in the normal course of prohibited anti-vehicle parking brake open; transform large trolley movement direction, the handle must be placed in the "zero" position, so that institutions completely stopped, can the reverse drive.

f. 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. g. Two allowed two hook crane hook lifting two objects simultaneously; hook does not work close to the limit to be raised to the height position of the hook are not allowed to hang on rope.

h. Are not allowed to use extreme position limiter parking is prohibited in the case of a load lifting mechanism to adjust the brake. i. Strictly enforce the "do not hang ten" system:

① command signal is unknown or arbitrary command does not hang; ② does not exceed the rated lifting weight lifting; ③ spreaders unreasonable or not the object is not strong tie to hang suspended;

④ hanging objects floating on someone or put other items are not hanging; ⑤ hanging heavy traffic processed directly without hanging; ⑥ pull Xiegua not hanging crooked; ⑦ explosive objects are not hanging; ⑧ buried object does not pull hanging ; ⑨ angular blocks mouth objects, not pad it really hanging; ⑩ cadres illegal command is not hanging;

j. The operator should closely monitor the direction of its unmanned or obstacles nearby.

k. Open-air operations  bridge gantry crane  , which should end when the work machine anchors horde. When the wind is greater than level 6, the general should stop working, and which machine rail clamp locking pliers.

3.3 work

a. The hook rises to a certain height, carts parked in the specified location, the controller handle in the "zero" position; Pull off the protective box knife switch handle, cut off the power supply, or one of the clamping rail clamp machine wind anchor locks.

 b. Routine maintenance.

c. Do shift work