(1) when the valve control lever is neutral, the oil pressure at port P is equal to that at port R. When the oil pressure of port P increases, the pressure area of plunger, the pressure of port P, the elasticity of tension spring and the pressure of chamber G are balanced, so the valve starts to operate. When the piston moves, the pressure of chamber g changes, so the safety pressure is affected by the tension spring and piston. Because the piston moves, the safety pressure increases from P1 to

We should all have seen excavators, so do you know how to prevent the scale of excavator accessories? Today, we specially invited modern excavator accessories manufacturers to tell us the methods of modern excavator accessories anti scaling. Let's follow Xiaobian to have a look! (1) magnetize the water quality. Some small magnets are placed in the engine structure system. The magnetic field generated by these magnets magnetizes the cooling water. The magnetized water can reduce the scale composi

The rotary table of excavator accessories plays an important role in the daily work, because the bad working environment or improper operation of the excavator will cause a series of failures of the rotary table, such as wear aggravation, abnormal noise, oil seal replacement and so on. When encountering these problems, first of all, open the cover plate around the boom mounting base, and investigate the amount of grease in the big gear ring and the wear condition of the gear ring. Because of the

Oil change time: after the oil change cycle is reached, the new gear oil must be replaced. After the excavator stops working for half an hour, the gear oil is at the bottom of the reducer, and the oil temperature is not too high or too low. The old oil can be drained as much as possible. After the old oil is drained, tighten the oil drain screw, and then add new gear oil from the gear oil filling port. Pay attention to the adjustment at this moment Check the travel scale to avoid too little or t