Operating procedures of the hottest bridge crane

2022-08-13
  • Detail

Bridge crane operating procedures

1 before work

a. check the brake, hook, wire rope, safety device and other components according to the requirements of the spot check card. If abnormal phenomena are found, they should be eliminated

b. the operator can turn on the main power supply only after confirming that there is no one on the platform or track. When the power circuit breaker is locked or has a notice board, the original relevant person should remove it before closing the main power supply

2 during work

a. when the heavy object is lifted for the first time in each shift (or when the load reaches the maximum weight), the heavy object should be lowered again after being lifted 0.5m above the ground, the brake performance should be checked, and the normal operation can be carried out after it is confirmed to be reliable

b. during operation, the operator shall ring the bell for the following operations as required

① lifting and lowering heavy objects; When driving large and small cars

② when the crane passes through with unclear sight, it should ring the bell continuously to give an alarm

③ when the crane approaches another crane in the span

④ when lifting heavy objects close to personnel

c. the operation shall be carried out according to the unified command signal

d. in case of sudden power failure during operation, all controller handles should be set to zero position, and the crane action should be checked before re operation

c. it is strictly forbidden to turn on the reverse brake to stop the crane and trolley during normal operation; When changing the moving direction of the crane and trolley, the handle must be set to the zero position to make the mechanism stop completely before reverse driving

d. for cranes with two hooks, when the main and auxiliary hooks are replaced and the height of the two hooks is similar, the main and auxiliary hooks must be operated separately to prevent the two hooks from colliding

e. cranes with two hooks are not allowed to lift two objects at the same time; Adjust the hoist brake when it is not working

f. do not use the limit position limiter to stop, and do not adjust the brake of the lifting mechanism under load

g. strictly implement the system of "ten no lifting":

① do not lift if the command signal is unclear or disorderly

② do not lift when the rated lifting capacity is exceeded

③ do not lift if the use of lifting appliances is unreasonable or the objects are not tied firmly

④ do not lift when there are people or other floating objects on the lifting object

⑤ do not lift if the holding brake or other braking safety devices fail

⑥ do not lift when the crane suspends the heavy object for direct processing

⑦ pull askew and hang askew without lifting

⑧ do not lift explosive objects

⑨ objects buried underground shall not be lifted

⑩ don't lift objects with edges and corners without padding

h. in case of any abnormality, stop the machine immediately, check the cause and eliminate it in time

3 after work

a. raise the hook to a certain height, stop the cart and trolley at the specified position, and place the controller handle at the zero digital display electronic universal testing machine, which is suitable for the user position that only asks for force value, tensile strength, compressive strength and other relevant data; Pull down the switch handle of the protection box and cut off the power supply

b. carry out daily maintenance

c. do a good job of shift handover

single beam 1 General PVC plastic layer adopts quench crane target=_ Blank bridge crane

1 before work

a. single beam crane with cab target=_ Before the bridge crane and the driver take over the shift and start up, the hook, steel wire rope, safety device and other components should be checked according to the requirements of the spot check card. If any abnormality is found, it should be eliminated

Vigorously develop graphene industry

b. ground operated single beam crane under specified conditions=_ Blank bridge crane, each shift should have a special person responsible for checking according to the requirements of the spot check card, and any abnormal conditions should be eliminated

c. the operator can turn on the main power supply only after confirming that there is no one on the platform or track. When the power circuit breaker is locked or has a notice board, the original relevant person should remove it before closing the main power supply

2 during work

a. when the heavy object is lifted for the first time in each shift (or when the load reaches the maximum weight), the heavy object should be lowered again after being lifted 0.5m above the ground, the brake performance should be checked, and the normal operation can be carried out after it is confirmed to be reliable

b. strictly implement the system of "ten no lifting":

① do not lift if the command signal is unclear or disorderly

② do not lift when the rated lifting capacity is exceeded

③ do not lift if the use of lifting appliances is unreasonable or the objects are not tied firmly

④ do not lift when there are people or other floating objects on the lifting object

⑤ do not lift if the holding brake or other braking safety devices fail

⑥ do not lift when the crane suspends the heavy object for direct processing

⑦ pull askew and hang askew without lifting

⑧ do not lift explosive objects

⑨ objects buried underground shall not be lifted

⑩ don't lift objects with edges and corners without padding

c. in case of any abnormality, stop the machine immediately, cut off the power supply, check the cause and eliminate it in time

3 after work

a. raise the hook to a certain height, stop the crane at the specified position, and set the controller handle to zero; Pull down the knife switch and cut off the power supply

b. carry out daily maintenance

c. do a good job of shift handover

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