NEWS & EVENTS
The Basic Operation Method of Truck Crane
The basic operation method of truck crane: choosing the lifting location
Choosing a correct and suitable lifting location for automobile lifting is very important, and there are certain requirements and specifications. When choosing the lifting location, you should consider the following: 1. The ground is solid and will not sink; 2. The lifting radius of the crane should cover the entire working range as much as possible; 3. No wires or other things may cause safety hazards to the project within the lifting range; 4. The light should be bright and the field of vision should be wide.
The basic operation method of truck crane: turning on the power take-off
After selecting the lifting location, you should set the crane to the ready lifting state. The operation method is to put the corresponding car gear on and turn on the power take-off. The lifting gear of ZOOMLION QY25V is 4 gears. The lifting gears of automobile cranes of different models and brands are different here, and they should be determined according to the specific situation. Then turn on the power take-off button and you can outrigger.
The basic operation method of truck crane outriggers
ZOOMLION QY25V has a total of 5 outriggers, 4 outriggers on the body, in an H shape, and a front outrigger to increase the stability of the crane working in the front direction of the vehicle.
The order of outriggers is generally to support the four outriggers of the body first, and then the front outrigger. The four outriggers of the body can be supported together, or two outriggers on both sides can be supported separately. The speed of supporting four outriggers at the same time is slower. The operation method of the ZOOMLION QY25V outrigger is: first push the two or four outrigger joysticks of the body to the upper gear, then bend the telescopic joystick to the lower gear, and the outriggers extend horizontally; when the horizontal hydraulic cylinder is extended, push the telescopic joystick back to neutral (middle gear), push the two or four outrigger joysticks to the lower gear, and then push the telescopic joystick to the lower gear, and the vertical hydraulic cylinder of the outrigger extends downward. The operation method of extending the front outrigger is the same. (The operation method of retracting the leg is the opposite)
There is also an important component in the outrigger system, called a level, through which you can see whether the outrigger is horizontal. Each outrigger can be adjusted individually through the above operation until it is level.
In addition, when the truck crane is outriggering, it is necessary to place a wooden block at the outrigger position to increase the force area and improve stability.
The basic operation method of truck crane: rotation
After the outrigger is completed, the lifting, rotation, amplitude change, and boom extension and retraction of the truck crane are all carried out in the operator's cab on the vehicle. The rotation operation of the ZOOMLION QY25V is completed through the rotation joystick in the operator's cab. The operation method is that when the rotation joystick is pushed to the lower gear, it rotates counterclockwise, and when it is pushed to the upper gear, it rotates clockwise.
The basic operation method of truck crane: boom extension and retraction
When the boom extension and retraction joystick of the ZOOMLION QY25V is pushed to the upper gear, the boom extends, and when it is pushed to the lower gear, the boom retracts. The boom of the ZOOMLION QY25V has four sections, which are synchronously extended and retracted. The boom of a truck crane is generally 4-5 sections, and sometimes there are seven sections. There are many ways to extend and retract the boom, including synchronous telescopic, independent telescopic, and combined telescopic. Different brands and models can be different, and the operation methods are also different.
The basic operation method of truck crane: luffing
When the luffing lever of the ZOOMLION QY25V is pushed to the lower gear, the luffing hydraulic cylinder extends, and the luffing increases; when it is pushed to the upper gear, the luffing hydraulic cylinder contracts and the luffing decreases. The display screen in the operating room can see the angle of the luffing, and there is also an indicator on the right side of the boom showing the luffing angle, but it is not so accurate.
The basic operation method of truck crane: lifting and lowering
In the other two joysticks in the ZOOMLION QY25V operating room, one controls the lifting and lowering of the main boom hook, and the other controls the lifting and lowering of the telescopic boom or jib hook. Their operation methods are the same. When the joystick is pushed to the lower gear, the hook rises, and when it is pushed to the upper gear, the hook falls.
The basic operation method of Basic operation methods of truck cranes: luffing crane: jib
The jib of ZOOMLION QY25V is a single-section truss type, eight meters long. When the boom extension cannot meet the height requirements, the jib can be overlapped. The jib of ZOOMLION QY25V needs to be overlapped manually, and the wire rope of the pulley at the top of the original last section of the boom is connected to the pulley at the end of the jib. After the jib is connected, the length and height of the lifting are increased, but the lifting capacity is also greatly reduced. After the jib of ZOOMLION QY25V is connected, the lifting capacity of the jib is only about 1 ton.
The basic operation method of truck cranes: luffing crane: forced stop
There is a forced stop button in the operation room of ZOOMLION QY25V. When an emergency occurs during work, press this button and the crane will stop all work, which can avoid serious consequences caused by lifting accidents.
The above is the content of the operation method of Basic operation methods of truck cranes: luffing cranes, taking ZOOMLION QY25V as an example. The operation room of an automobile crane can have different designs and technologies, such as automatic handle operation technology, but the operation methods are basically the same, and the operation content is also basically the same.
