Generally, large-scale truck cranes are equipped with multi-way valves or two-way valves, which greatly improves the efficiency of truck-mounted cranes. At the same time, in order to make it easier for people to work on multi-way valves, their functions are constantly improving. The cranes are equipped with the most advanced multi-way valve in China. This multi-way valve can not only perform two-way operation, but also change the mature work, and can also complete different tasks. In order to assist the smooth completion of lifting operations, many multi-valve valves are currently installed. There are 2 multi-way valves in the crane.

In order to maintain the good effect of the truck crane , we must pay attention to the maintenance and even the adjustment of the multi-way valve of the truck crane in daily life. How can the multi-way valve of the truck crane be maintained and adjusted in time?

The multi-way valve is a very important part of the truck crane. The high-pressure oil pumped out can only be distributed to different working systems through the multi-way valve, for example, the extension of the outrigger cylinder and the outrigger cylinder of the truck crane. Lifting arm cylinder expansion and contraction, boom extension and retraction of the push-pull cylinder, left and right rotation, lifting of heavy objects, etc., while the multi-way valve with the crane to provide stability for the crane, which can make the crane In the process of use, it is more safe, and the adjustment screw is installed on the right and rear of the multi-way valve, which is mainly used to adjust the pressure of the multi-way valve.

Adjusting the pressure in the multiway valve size, we can see the multiway valve has two right rear two nuts, which nuts are outside the outer regulating nut is a nut, the nut clockwise regulator is adjusted by the outer Pressure, counterclockwise adjustment of the external pressure regulator nut is decompression. After we adjust the nuts according to our own needs, we must adjust the lock cap to lock the nuts so that the nuts are not easily loosened. Under normal circumstances, it is best not to adjust the nut. During adjustment of the nut, the normal adjustment pressure is 14 MPA.

When it is found that the multi-way valve of the truck crane is faulty, it must be repaired in a timely manner, and at the same time, the operation cannot be continued during the fault so as to avoid danger.

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