1, HaiQin Top Machinery have professional parts warehouse and work team, can provide customers with fast service.
HaiQin Top Machinery can supply every kinds of Chinese wheel loader spare parts. Like engine, torque conventer, gearbox, starter, generator, pilot valve, double pump, shaft, oil pipe, valve, clutch, etc.
Pilot valve function: The pilot valve (operating handle) is a proportional pressure control valve installed under each operating handle in the driver's cab. It can output corresponding control oil pressure according to the stroke size of the driver's operating handle, allowing the main control valve core to have corresponding movement, thereby controlling the working speed of the working device. Working principle of pilot valve: There is a pressure reducing valve installed inside the pilot valve. When the pilot handle is pushed, the push rod and spring are pressed down, changing the secondary pressure and spring pressure. The pilot valve housing has an inlet port P for primary pilot pressure and an oil port T for return oil. The secondary pilot pressure changes with the operating angle of the handle, and acts as pilot pressure on the valve stem of the main control valve through the pressure reducing valve
2, We have long term cooperation agreement with DHL and FEDEX. All the parts can reach to the customer in 3-6 days!
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