Pressure Water Truck and other mechanical equipment are the same, they need regular maintenance and maintenance, if this work can not be done or ignored, it is likely to cause bad damage to the Pressure Water Truck accessories, resulting in the normal operation of the equipment. The following will give you a detailed introduction to the maintenance and maintenance of the Pressure Water Truck, so that you know what to do.

We can start with the maintenance of Pressure Water Truck from the following aspects:

1, the engine must be filled with 92# above the label of clean gasoline;

2, the first use of engine oil 8 hours to replace the oil, after the normal use of every 60-80 hours to replace;

3. The engine air filter element is cleaned every 50 hours and replaced every 200 hours.

4. When the engine starts, please open the water outlet switch to avoid damage to the engine due to pressure holding. When stopping, please lower the engine throttle first before stopping, and open the valve for pressure relief;

5. When the high pressure pump is used for the first time, the tap water is connected to the inlet of the cleaning machine, and the water is pre-injected into the pump until there is water overflow at the outlet to prevent the dry grinding of the high pressure plunger (consequences: dry grinding for more than 20 seconds can lead to the scrap of the sealing ring of the high pressure pump);

6, the high pressure pump is used for the first 50 hours, the high pressure pump oil (ordinary 15W-40 (summer) or 10W-30 (winter) four stroke motorcycle oil), the first grinding and oil contains a large number of metal cutting particles, will produce serious secondary wear on the high pressure pump transmission bearing, seriously shorten the service life of the high pressure pump, Later can be replaced every 300-500 hours; (See "High Pressure Pump User Manual" for detailed instructions on high pressure pump)

7. It is strictly prohibited to idling the machine for more than three minutes when the gun is closed. When idling, the high pressure pump plunger still compresses the pump memory water at high speed (about 20 ml), so that the water temperature rises sharply, and the rubber seals such as the plunger water seal and oil seal are rapidly denatured and aging, affecting their service life (Solution: When it is inconvenient to shut down/start frequently during operation, the gun handle can be fired every two minutes between gun stops to discharge the hot water in the pump and let the new cold water be injected into the pump body)

We can start with the maintenance of Pressure Water Truck from the following aspects:

1, the engine must be filled with 92# above the label of clean gasoline;

2, the first use of engine oil 8 hours to replace the oil, after the normal use of every 60-80 hours to replace;

3. The engine air filter element is cleaned every 50 hours and replaced every 200 hours.

4. When the engine starts, please open the water outlet switch to avoid damage to the engine due to pressure holding. When stopping, please lower the engine throttle first before stopping, and open the valve for pressure relief;

5. When the high pressure pump is used for the first time, the tap water is connected to the inlet of the cleaning machine, and the water is pre-injected into the pump until there is water overflow at the outlet to prevent the dry grinding of the high pressure plunger (consequences: dry grinding for more than 20 seconds can lead to the scrap of the sealing ring of the high pressure pump);

6, the high pressure pump is used for the first 50 hours, the high pressure pump oil (ordinary 15W-40 (summer) or 10W-30 (winter) four stroke motorcycle oil), the first grinding and oil contains a large number of metal cutting particles, will produce serious secondary wear on the high pressure pump transmission bearing, seriously shorten the service life of the high pressure pump, Later can be replaced every 300-500 hours; (See "High Pressure Pump User Manual" for detailed instructions on high pressure pump)

7. It is strictly prohibited to idling the machine for more than three minutes when the gun is closed. When idling, the high pressure pump plunger still compresses the pump memory water at high speed (about 20 ml), so that the water temperature rises sharply, and the rubber seals such as the plunger water seal and oil seal are rapidly denatured and aging, affecting their service life (Solution: When it is inconvenient to shut down/start frequently during operation, the gun handle can be fired every two minutes between gun stops to discharge the hot water in the pump and let the new cold water be injected into the pump body)

8. The pressure in the gun must be released after the shutdown. The high pressure in the gun is that the pump body and the external gun and pipe system are in a continuous high pressure state, which affects the service life of the high pressure seals;

9. Check the inlet filter regularly (every week) to prevent the blockage of insects, leaves, paper, hair and other foreign bodies as well as the air tightness of the inlet pipe to prevent the air from entering (any link of the inlet pipe from the water tank to the pump body appears weak air tightness (no dripping leakage), which will lead to gas inhalation under the self-imbibition negative pressure of the pump body). These two conditions are the most likely to cause the reduction of jet pressure;

10, winter maintenance:

(1) The use of low temperature antifreeze oil in winter cleaning machine (10W-30);

(2) The cleaning machine is disconnected from the water before storage, run for 2 seconds, discharge the water in the pump (do not have to exhaust), prevent water icing expansion, damage the pump body and plunger seals;

11, the filter must be checked before each shift to see if there are too many impurities, and clean up;

12, the water tank must be checked regularly and keep clean, at the bottom of the impurities need to open the sewage outlet to eliminate it;

13. When walking in non-working state, the electric lifting device shall be lifted, and the switch shall be pulled to the "stop" state after lifting to avoid collision;