The suction truck is one of the necessary sanitation tools and an indispensable part. The vacuum pump oil of the suction truck needs to be supplemented and replaced regularly. Generally, every 200-250 times of suction and discharge shall be renewed. Waste oil shall be discharged from the oil outlet of the oil gas separator, and new oil shall be added from the oil filler. The principle and maintenance method of the suction truck shall be described from the following contents.
Connect the pipe dredge nozzle with high-pressure rubber pipe, and place the nozzle directly at the pipe mouth to be dredged. The high-pressure pump of the suction truck works. The reaction force generated by the high-pressure water sprayed from the rear of the nozzle of the suction truck pushes the nozzle forward at the speed of information, and cleans the pipe quickly by using the high-pressure water jet produced by the front and rear spray holes of the nozzle. When the receiver moves the nozzle back At the same time of pulling, the high-pressure water flow will discharge the washed dirt in the tube bundle out of the tube.
Maintenance of suction truck
The filter screen shall be cleaned regularly according to the water quality, preferably once a day.
高压泵内润滑油，初次使用 30~50 个小时更换一次，以后每 200 小时更换一次。
The lubricating oil in the high-pressure pump shall be replaced once every 30-50 hours of initial use and every 200 hours thereafter.
Frequently check the connection of the moving parts and fasteners of the manure suction truck. If any looseness is found, tighten it in time. Before starting the machine every day, focus on checking whether the anti loose screw on the end face of the slider is loose, and tighten it in time. Check the axial clearance of the plunger regularly, and adjust the compression screw sleeve in time if it is increased.
Adjustment of plunger seal: 1-5 drops of water are allowed at the plunger seal every minute, which is normal. In case of more water leakage, stop the machine for adjustment. First, loosen the lock round nut, use a special wrench to screw the steel sleeve screw plug into the appropriate tightness, and then use the lock circle to lock it. If more water leakage is found and the steel sleeve plug can no longer be tightened, the plunger seal at this place needs to be replaced.
气温零下时，使用完毕后将设备内高压水排空，机器可空转 3~5 秒将高压泵内残留水排净。
When the temperature is below zero, drain the high-pressure water in the equipment after use, and the machine can idle for 3-5 seconds to drain the residual water in the high-pressure pump.