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Precautions for Using Gasoline Pressure Washers

Precautions for Using Gasoline Pressure Washers

Place the warning sign, open the high-pressure pipe and power cord, connect the high-pressure water pipe and the high-pressure gun, press the handle of the high-pressure gun to empty the air, turn on the machine switch after the air in the machine is emptied, hold the gun with both hands, and the nozzle is 10 cm away from the ground. Cleaning and descaling operations;


1. The voltage must be stable, the ground wire must be well connected, and the three-phase motor must not be out of phase (three fires and one ground). According to the size of the motor, the corresponding regular national standard wire. 32A and above.

2. For 22V 3KW, the national standard wire of more than 4 square meters should be used, and the plug and socket should be more than 16A, otherwise, the high temperature and pressure will soon be insufficient.

3. For the new machine, please replace the original pump body sealing oil plug cover, and use the breathable cover in the accessories bag, otherwise the high temperature will not fall off and the oil seal will be burned;

4. After the first use of 50 hours, all the oil should be replaced, the oil mirror should be observed every day in the later period, and the oil should be added when the oil is insufficient. Change the oil every 300 hours or a year, which is generally determined according to the stability of the weather and temperature. SAE 15W-40 is used most of the time in the south; pressure regulating valve precautions

5. It is strictly forbidden to modify the structure of the cleaning machine without permission. Pressure regulation of cleaning machine: clockwise is to increase, counterclockwise to decrease, generally adjust from small to large, and can not exceed the maximum pressure regulation value of the machine. When the maximum is reached, it cannot be connected to the lower level. It is strictly forbidden to use the machine without water injection or to use it with dirty water;

6. Do not aim the spray gun at people, animals, power sources, etc. when cleaning, and remove the pressure of the spray gun when cleaning is completed;

7. The filter screen of the water inlet should be cleaned regularly to avoid impurities such as impurities in the water from clogging the machine. The cleaning water must be clean, otherwise, the check valve, plunger, seal, and pressure regulating valve core will be easily worn;

daily maintenance rules

1. Check the pump and power connection devices and screws every 50 hours of work, and check the oil position every day;

2. Before maintenance work, remove all pressure from the whole system and cut off all power to drive the pump;

3. Do not use an air pump to blow off the water inside for a long time to prevent scale formation;

4. 220V one square national standard line drives 0.75KW power; 380V one square national standard line drives 2.5KW power;

5. The gasoline or diesel engine must be filled with oil in advance (two-thirds of the oil dipstick), restart the machine, and the trigger must be buckled when starting the machine;

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