Use of sewage suction vehicle
The use process of the sewage suction vehicle is mainly divided into the following steps: before and after sewage suction, sewage discharge and recovery. Driver friends can operate according to the specific instructions of each step.
Steps/methods
1. Preparation steps before suction:
1. Close the water tank cover, drain valve cover and pressure reducing valve to prevent air leakage.
2. Insert the boom pipette into the liquid level. 3. Turn the handle of the four-way valve to the pumping position.
4. Start the engine at idle speed.
2. Mud suction operation method of the mud suction car;
1. Make preparations for car suction operation before inhaling, close the back door of the car suction tank, and observe whether the lubricating oil of the vacuum air pump oil-gas separator is normal.
2. Operation sequence:
3. Step on the clutch pedal, push the power take-off lever to idle the vacuum pump, and then slowly release the clutch pedal.
4. Turn on the alarm switch in the cab.
5. Pull the manual throttle handle to the maximum position, and observe the tachometer to 500-600 rpm (it has been adjusted at the factory).
6. Put the switch handle of the four-way valve in the suction position, and check whether the gas discharged from the trachea is correct, whether the vacuum pump is running with or without sound, and whether the vacuum gauge is normal.
7. Remove the suction hose from the suction car and put it into the open caisson. In order to make the vacuum hose in a straight line or free bending state, the parking position should be fully considered.
3. Sewage suction vehicle sewer:
After the mud and water are separated, open the drain ball valve, repeatedly suck the mud after discharging the sewage, or quickly pressurize and drain. The operation method is as follows.
1. Put the four-way valve changeover lever in neutral position, and then put it in the drain ball valve. Open position, reliable gravity discharge of sewage.
2. Switch the four-way valve to the discharge position. If the vacuum pump continues to work, the compressed air and sewage flowing into the tank will be discharged quickly.
3. When relieving pressure, first open the pressure relief ball valve, and then pull the four-way ball valve to the pressure relief position, so as to avoid accidents caused by excessive pressure in the tank and affect the sealing of the tank door.
4. Dredging method of the suction truck:
1. Step on the clutch, turn the pneumatic reversing valve to the open position, or push the power take-off lever to make the oil pump run.
2. Open the ball valve of the tank door to discharge some sewage, reduce the pressure in the tank and make it communicate with the atmosphere.
3. Loosen the locking device of the fuel tank cover, loosen the handle and completely pull out the screw.
4. Make sure that the pressure in the oil tank is equal to the atmospheric pressure before setting the switch lever of the door of the manual reversing valve to open. If the tank cover is opened under negative pressure, the sealing ring and oil cylinder of the tank cover will be damaged.
5. Set the hydraulic lifting valve stem of the manual reversing valve to rise. Location.
5. For the recovery operation after sludge discharge, set the operating lever of the hydraulic cylinder to the rejection position, and check the following contents after safe descent: 1. Check whether there is dirt attached to the flange and sealing ring of the door and clean it with a brush.
2. Set the switch lever of the fuel tank door to safely close the door leaf.
3. Insert the screw of the clamping device into the screw hole on the side of the fuel tank and turn the handle until the rear fuel tank door is pressed down.
Matters needing attention
Matters needing attention in sewage suction operation of sewage suction vehicle:
1. Impurities larger than 50 mm, such as stones, cotton yarn, leaves, etc., will block the straw. Therefore, do not inhale and always remove it.
2. When the reading of the vacuum gauge reaches 65-80 kPa, fully open the ball valve of the sewage suction vehicle, and the valve core is easy to be damaged in the half-open state. When pumping sludge, the straw should be moved frequently. When inhaling high-viscosity sludge, air occasionally inhales gas and water, which can improve pollution efficiency.
The coach of Xicheng driving school began to receive continuous education rotation training this month.
The reporter learned from the transportation department that starting from this month, Wuxi Transportation Management Department will organize 2,272 motor vehicle driving coaches in the city to conduct rotation training in traffic safety, professional ethics, fashion discipline, intelligent timing management and training. Those who have poor professional ethics, low level of coaches, illegal records and are not suitable for coaching will be dealt with according to law, and those with bad records will be included in the "blacklist".
According to the management department of driving and training industry in Wuxi, Wuxi began to carry out rectification of driving school morals in May last year and ended at 1 1. For more than half a year, many coaches who have been reported have been eating and getting cards. Will be severely punished. The coach must apologize to the complainant in addition to returning the requested money and things. Through rectification, the phenomenon that coaches openly demand benefits has been effectively curbed. However, there are still some coaches who secretly ask students for benefits. The person in charge said that according to the requirements of the Provincial Transportation Management Bureau for the continuing education of motor vehicle driving training coaches, the Municipal Transportation Management Office will organize relevant departments to train 2,272 motor vehicle driving training coaches in rotation in traffic safety, professional ethics, fashion discipline and intelligent timing management of driving training on June 5438+ 10, 2009. At the same time, continue to do a good job in the credit evaluation of coaches, establish a list of coaches' teaching quality, and announce it to the public regularly. Those with poor professional ethics, low level of coaches, records of violation of laws and regulations and unsuitability as coaches will be dealt with according to law, and those with bad records will be blacklisted. At the same time, by introducing the competition mechanism, we can solve the information asymmetry contradiction in the driving and training consumer market, create an honest and trustworthy driving and training market environment, and promote the establishment of the credit mechanism in the driving and training industry.
How to use the sewage suction truck @20 19