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Precautions for the use of truck cranes

October 17,2022

1. The site where the crane travels and works should be flat and solid to ensure that it does not sink during work.
Do not drive and operate on sloping ground, depending on the soil quality and the working position of the crane

There should be a necessary safety distance from ditches and foundation pits:

2. Strictly implement routine maintenance. Before starting, the main clutch should be separated, and each lever should be placed
in the neutral position. Before the operation, the engine transmission part, the operation brake part, the instrument should be checked first.
Whether the watch, wire rope, hydraulic transmission and other parts are normal, only after confirming that there is no problem can the

Do not work under the influence of alcohol;

3. All the outriggers are extended (when placing the outriggers, the rear outriggers should be placed first, and then the front outriggers should be placed;
When installing the outriggers, the front outriggers should be retracted first, and the rear outriggers should be retracted later). Place square wood under the footboard, adjust the machine
body, so that the inclination between the slewing bearing surface and the ground is not more than 1/1000 when there is no load, and the outriggers
body, so that the inclination between the slewing bearing surface and the ground is not more than 1/1000 when there is no load, and the outriggers

If there is a positioning pin, it must be inserted;

4. The driver must cooperate closely with the commander (lifter) and strictly follow the commander’s instructions.
The signal (flag or gesture) issued by the operator to operate: the horn (bell or horn) must be sounded before the operation
Indication: If you find that the command signal is unclear or wrong, you have the right to refuse execution and take measures to prevent
Accident: When operating, the driver should also take measures to stop the danger signal issued by other personnel
measures to avoid accidents.
5. During construction, if there is heavy rain, heavy snow, heavy fog and winds above Grade 6, the construction will be affected.
When it is safe, the lifting work should be stopped and the boom should be lowered to a safe position.
6. During the hoisting process of the crane , the on-site safety officer must be responsible for the on-site safety management.
7. Newly arrived, repaired and newly installed lifting equipment shall comply with the “Construction Machinery Technology
According to the relevant provisions in the “Technical Test Regulations”, the test and trial lifting are carried out, and the competent maintenance personnel,The operator and the security department of the project department jointly inspect and use it only after passing the test.
8. Do not drive with load or lift without putting down outriggers. Before working on uneven ground,
The site should be leveled first, the extension of the outrigger should be completed before the boom is lifted, and the income of the outrigger should be
Do it after keeping your arms steady. A hardwood block should be placed under the outrigger. In the case of uneven fulcrum, the
Thickened skids are lowered to keep the body level. Before operation, check the range of 50cm from the tail turning
No obstacles inside.
9 When the jib crane is lifting, the maximum elevation angle of the boom shall not exceed the original
When there is no information to check, the maximum temperature should not exceed 78 degrees;
Safety measures are formulated and approved by the technical director of the project department before lifting.
10. Lifting machinery and equipment of different models and specifications shall be installed according to their specific factory regulations.
Safety protection such as height limiter, amplitude limiter, amplitude limiter, steering limiter, etc.
The devices should be complete and reliable.
11. Overloading of crane machinery and equipment is strictly prohibited.
12. It is strictly forbidden to use all kinds of hoisting machinery for oblique lifting and pulling; it is strictly forbidden to lift the buried underground
Objects and other objects of unknown weight to avoid excessive mechanical load and cause accidents.
13. It is strictly forbidden to lift personnel with various cranes or lift the hook by hand, in order to prevent the lifting system
Accident occurs due to sudden failure.
14. In the process of lifting and dropping, it is forbidden for people to stay or pass under the hanging piece to avoid
Accidents caused by falling objects.
15. The lifting components should be tied firmly, and it is forbidden to stack or hang scattered objects on the components
Components, such as hoisting sporadic objects, must be tied firmly with hanging cages or wire ropes; components are hoisted and then turned
Its bottom should be higher than 0.5 meters above all obstacles.
16. The crane’s luffing should be stable, and it is strictly forbidden to raise and drop the boom;
17. When abnormal phenomena such as tilting of the crane and deformation of the outriggers are found during the operation, the crane should be
Immediately put down the heavy objects, and then proceed to work only after the no-load adjustment is normal:
18. When lifting the component, the center of the hook should pass through the center of gravity of the component, and the component should be lifted off the ground.
20~50cm must stop for inspection:
(1) The stability of the crane;
(2) The reliability of the brake: