1 gantry lift hoist before work
a. On the brakes, hook, wire rope and safety devices and other components according to the requirements of the check card, it was discovered anomalies, should be excluded.
b. Operator must confirm to go Taiwan or 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.
2 gantry lift hoist work process
a. First class when lifting heavy objects should be hanging height of 0.5 meters from the ground after the heavy down again, 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 gantry lift hoist with clear line of sight through, to continuously-ringing alarm;
③ gantry lift hoist with close cross inside another lift hoist.
④ when lifting heavy objects close to the staff.
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 lift hoist movement is normal.
hoist and trolley during normal operation, is strictly prohibited to open anti-vehicle parking brake; transform large trolley movement direction, the handle must be placed in the "zero" position, the agency completely stopped, can the reverse drive.
f. There are two hooks of the lift hoist, 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 lift hoist hook lifting two objects simultaneously; does not work in the case adjust the brake lifting mechanism.
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 brake failure or other safety device brake not hanging;
⑥ hanging heavy traffic processed directly without hanging;
h. If abnormal, immediately shut down, check the reason and immediately removed.
3 gantry lift hoist work
a. The hook rises to a certain height,
Hoist and trolley stops at the specified location, the controller handle in the "zero" position; Pull off the protective box switch handle, cut off the power.
b. Routine maintenance.
c. Do shift work.