Safety technical disclosure of truck crane

1. Truck crane drivers must undergo professional training and pass the examination of relevant departments before operating the crane. It is strictly forbidden to operate after drinking or when the body has no indications. It is forbidden for unlicensed personnel to use truck cranes.

2. The truck crane driver should maintain and inspect the crane in time according to the regulations of the crane manufacturer to ensure that the vehicle is always in good condition.

3. The operation must be carried out according to the lifting weight and working radius specified in the lifting characteristics table, and it is forbidden to overload. When lifting objects, the wind speed specified by the manufacturer shall not be exceeded.

4. The ground where the truck crane is parked should be flat and solid, and keep a safe distance from ditches and foundation pits.

5. Before driving, you must take back your arms, hooks and legs. Keep the middle speed while driving to avoid emergency braking. You must slow down when crossing railway crossings and uneven roads. It is forbidden to slide in neutral when going downhill, and someone must be supervised when reversing. Anti-skid measures should be taken when truck cranes walk in winter.

6. Before operation, the outriggers of the truck crane should be fully extended. For soft ground or ground with insufficient bearing capacity, sleepers must be placed under the legs. Adjust the legs to keep the machine level.

7. The operation of adjusting the leg must be carried out when there is no load. Retract the outstretched arm and turn it forward or backward. During operation, it is forbidden to move the leg to control the valve.

8. Before the truck crane works, it is necessary to check whether all parts of the crane are complete and in good condition, in line with safety regulations. After the crane is started, it should run with no load, and check whether all operating devices, brakes, hydraulic devices and safety devices are normal, sensitive and reliable. It is forbidden to run machine parts with illness. Before operation, pay attention to whether there are obstacles in the rotating range of the crane.

9. When the ground is soft at the site, a trial hoisting must be carried out (the lifting weight is not more than 30CM from the ground), and check whether each leg of the crane is loose or sunken, and then continue lifting after it is confirmed to be normal.

10. When lifting heavy objects, first lift the heavy objects about 10CM from the ground, check the stability of the crane and whether the brakes are flexible and effective, and then continue lifting after confirming that they are normal.

1 1. When the crane is hoisted at or near full load, it is forbidden to carry out two or more operations at the same time. The left-right rotation angle of the boom shall not exceed 45, and it is forbidden to tilt, push and pull, and take off and land quickly. It is forbidden to extend your arm under heavy load.

12. When using the crane at night, the workplace should have sufficient lighting equipment and smooth lifting passages, and keep a safe distance from nearby equipment and buildings to prevent collisions during operation.

13. The normal operation of the crane needs to be carried out slowly at a constant speed. Only under special circumstances can emergency operations be carried out.

14. When two cranes lift a heavy object at the same time, there must be a special person under unified command; The vertical speed of the two cars should be equal, and the weight of the object should not exceed 75% of the sum of the allowable lifting weights of the two cars; Pay attention to the load distribution when binding slings, and the load shared by each vehicle shall not exceed 80% of the maximum allowable lifting weight.

15. When the crane is working, the hoisted objects should try to avoid passing above the cab. No one is allowed to stand, work or pass under the work area, jib, hook and hoisted object. Drivers are not allowed to leave the cab when the goods are in the air.

16. When the crane works near the live line, it should keep a safe distance from the live line. Within the maximum radius of gyration, the allowable shortest distance from the transmission line is shown in the following table. When working in foggy days, the safety distance should be appropriately increased.

17. When the crane is working, keep a certain distance between the hook and the pulley to prevent the wire rope from breaking or the boom from overturning when the lifting weight exceeds the limit. The wire rope on the crane drum can't be completely paid out during work, and the wire rope on the hoisting drum should be kept for at least three turns.

18. Maintenance and adjustment of parts are not allowed when the crane is working. Irrelevant personnel are strictly prohibited from entering the cab.

19. The driver and the rigger must cooperate closely and obey the signal command of the commander. You must honk the horn before operation. If the command gesture is unclear or wrong, the driver has the right to refuse to carry it out. At work, the driver must stop immediately when he sends an emergency stop signal to anyone, and can not continue to work until the unsafe factors are eliminated.

20. It is forbidden for the staff to take up and down the hanging objects, and it is forbidden to touch the wire rope and pulley with their hands at work.

2 1. No matter when stopping work or resting, the hanging objects should not be hung in the air, and there should be enough lighting for work at night.

22. If the legs sink and the crane tilts during the operation, the crane must immediately put down the lifting objects and adjust and eliminate the unsafe factors before continuing the operation.

23. After the operation, the boom of the telescopic crane should be completely retracted, put away and hung with a hook. The brakes of all mechanisms must be firmly braked, and the operation room and hangar should be closed and locked.

24. Strictly abide by the "ten don't lift" safety regulations for lifting operation. Don't hang up if the command signal is unknown; Objects with overload or unknown weight are not lifted; Cable-stayed heavy objects are not hoisted; Insufficient light, can't see the weight clearly, don't hang up; People who stand under heavy objects do not hang; Buried heavy objects are not hoisted; The weight is not fastened, and the rope is knotted and uneven. Do not hang edge objects without buffer measures; The heavier the weight, the less it hangs; If the safety device fails, do not hang it.

25. For the hoisting operation that is difficult to operate, the relevant personnel must first make a good construction plan and send someone to observe the crane safety during the operation.

Extended data:

We must strictly implement the "ten no-hanging system";

1, do not lift when the rated load is exceeded;

2, the command signal is unknown, the weight is unknown, and the light is dark;

3. The slings and accessories are not firmly bound and do not meet the safety requirements.

4, hanging and hanging;

5. Buried objects are not hoisted without taking measures;

6. Objects with corner blocks shall not be lifted without pads;

7. There is someone standing on the hanging object or there is a moving object on the hanging object or the hanging object is directly processed without hanging;

8, safety devices and mechanical equipment have abnormal sound or fault not hanging;

9, oxygen, acetylene bottles and other pressure vessels without safety measures not hanging;

10, don't hang up in severe weather such as strong winds above level 6, heavy rain and fog.

References:

Xiamen People's Insurance Bureau formulates training for Jinhua University-Technical disclosure of truck crane safety