About the sewage suction truck, vacuum suction sewage truck working principle and instructions Vacuum sewage truck working principle and instructions one,  Overview The vehicle carries out sludge and sewage inhalation operations under high vacuum conditions, paying particular attention to its operation. Second, the operation method 1 , matters needing attention ( 1 ) Maintain the appropriate number of revolutions of the vacuum pump: Vacuum pump speed is too high, transfer to the heat increased; speed is too low, it will cause engine knock, the parts cited additional shocks, affect the life, the appropriate working speed, pre-adjusted hand throttle maximum adjustment position. Pump type 50QZXDG-45 type Appropriate rotation 500-600 rev / min ( 2 ) Turning the pot on a flat ground Failure to turn the tank over a sloping road can result in distortion of the parts and cause failures, and may cause a roll-over accident. ( 3 ) Open the rear door and window when turning the tank Before turning the tank, the rear fan should be opened. Do not close the door and turn the tank. The danger of overturning due to the shifting of the center of gravity. ( 4 ) When the clutch oil pump power take-off box and the vacuum pump power take-off box are engaged, the engine idles, and the clutch pedal is fully depressed, and the clutch pedal is slowly raised when the clutch is engaged. ( 5 ) Pay special attention when driving the car: Take the lever control lever in the middle position. ( 6 ) Do not use this vehicle to inhale and transport waste oil and dangerous materials. ( 7 ) When entering the tank bottom or overhauling when the sludge tank is raised, support bars and safety stops must be used. ( 8 ) When transporting sewage, it is necessary to use a hand-door door clamping device. Since there is no anti-wave plate in the tank and the center of gravity is high, the vehicle must be driven at a moderate speed and a slow speed, and no heavy-duty change or sudden braking is required. 2. Inhalation method: ( 1 ) Preparation before inhalation A. Close the back door. B. Observe whether the vacuum oil separator oil is correct. ( 2 ) Operation sequence A. Depress the clutch pedal and push the power lever control lever ( 2 ) to operate the vacuum pump ( 3 ) and slowly release the clutch pedal. B , open the alarm switch (in the cab) C, the hand throttle lever is pulled to the maximum position, observation tachometer, to make 500-600 rev / min (it has been adjusted at the factory). D , the four-way valve ( 5 ) conversion handle bar placed in the suction position, and check the trachea exhaust air is correct, the air pump operation noise, the vacuum gauge is normal and so on. E. Remove the suction hose from the car and put it into the sinkhole. In order to make the suction hose straight or free-bend, the parking position should be fully considered. ( 3 ) Job Notes: A , debris larger than 50mm , cotton yarn, leaves and other impurities will clog straws, so  Do not inhale and should always be removed. B. Observe the vacuum gauge reading to 65-80 kPa. Completely open the suction ball valve. The half-open condition will damage the valve core. C. When inhaling the sludge, you should always move the suction tube. When inhaling the high-viscosity sludge, inhale air and water occasionally to increase the pollution efficiency. 3 , sewage discharge method: After the separation of mud and water, open the drain ball valve ( 10 ) and repeat the suction after draining the sewage. The pressure can also be quickly drained. The operation method is as follows: ( 1 )  Place the four-way valve ( 5 ) shift lever in the "neutral" position and then place the drain ball valve in the "on" position to reliably drain gravity. ( 2 )  When the four-way valve is switched to the discharge position and the vacuum pump continues to work, the compressed air discharged into the tank will be rapidly discharged. ( 3 )  When the pressure is drained, the discharge ball valve should be opened before the plate-actuated four-way valve ( 5 ) can be placed in the discharge position, so that the pressure in the tank is too high, and accidents and the impact on the tank door seal are caused. 5,  Sludge discharge method: ( 1 )  Depress the clutch, dial the pneumatic reversing valve ( 1 ) to the "open" position (liberate) or push the power-lift lever to operate the longitudinal rod ( 2 ) (east wind) to operate the oil pump. ( 2 )  Open the ball valve ( 11 ), discharge part of the sewage, and reduce the pressure inside the tank to open to the atmosphere. ( 3 )  Loosen the tank door lock ( 12 ), loosen the handle and safely remove the screw. , ( 4 )  Open the open/close lever of the manual valve ( 4 ) and open it. Before opening, make sure that the pressure in the tank is equal to atmospheric pressure. If the tank door is opened under negative pressure, it will damage the seal of the tank door and Cylinder. ( 5 )  Set the manual change valve's tipping valve stem to the "up" position. ( 6 )  Sludge recovery after draining the sludge: Place the cylinder-cylinder operating lever in the “down†position. Check the following for safe descent: A ,  Check the tank door flanges and seals for dirt and brush them with a brush. B ,  Place the tank door open/close lever “closed†and safely close the door leaf. C ,  Insert the clamping device screw into the pot side screw hole and turn the handle until the door leaf is tight. For more information, please call the service number: 0722-7607722 for professional advice! BEST RECOVERY STRAP WITH 7% MAX STRETCH, NO OTHER STRAP COMPARES - Winnerlifting strap will make your off-road journey a breeze. 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