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What's the reason why the car can't lift up?

Update Date: 2015/12/30 comes from: jyrcpr.cn Author: clicks:

The largest in the country Xugong truck crane It is specialized for large and small brands of truck mounted cranes. As many as 1000 kinds of cars are available, please consult the factory department with the price and parameters of the car.

??? Xugong truck crane When the hydraulic system is under pressure or no pressure, there will be slow operation or heavy lifting. The operator will immediately stop the operation and resume operation after troubleshooting.
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To see if the hydraulic pump can output hydraulic oil. If there is no hydraulic oil output, it may be: the pump is not right; the parts are worn seriously or damaged; the resistance of the suction pipe is too large (the oil filter is blocked, the oil viscosity is too large, etc.) or the air leakage is two.
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Some pipelines or hydraulic cylinders (hydraulic motors) have no pressure, or they may be caused by blockage of components such as pipes, throttle valves, reversing valves, etc.: by checking the pressure and passing through oil and gas through sections, find out the causes and eliminate three. To see whether the relief valve is working normally. If not, it may be that a valve in the pressure oil way is contaminated or other reasons and is placed in the oil return position. Causes the pressure oil way to connect with the overflow circuit, may also be the oil pipe joint loosens, or is in the pressure oil way certain valve leaks serious, or the hydraulic cylinder, the hydraulic motor's seal piece is damaged, causes the serious leakage.
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Troubleshooting: disassemble the valve for cleaning, check the sealing clearance size and all kinds of sealing devices. If the sealing device is damaged, it should be replaced.

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