How to install the rubber ring of the water pump when it falls off?

Tools/raw materials: after being left for a period of time, there is no compressed gas in the push pump. Methods/steps:

1. First, open the big round nut at the position shown in the figure. Generally, it can be removed by rotating clockwise.

2. Then pull out the handle. At this time, you can see that the handle comes out together with the piston rod and piston.

3. Check whether the cylinder of the pump is in good condition, and then check the piston. The two rings are not broken, and the rubber ring in the middle is also intact.

4. Touch the inner wall of the cylinder again. It is dry and electrostatic, and there is no oil on the piston! It turned out that there was no lubricating oil in the air pump, which led to air leakage between the piston and the cylinder.

5. Drop a few drops of engine oil on the piston and reinstall it. Push the handle piston, and the gas will be discharged from the outlet.

6. This is the maintenance of the pump. When in use, as shown in the figure, first insert the connector on the valve, and then pull down the pressure rod as shown in the figure to push the piston to inflate. This is how to use it.

Matters needing attention in using pump

The traditional vertical pedal pump is the most common pump. It has the effect of rapid inflation, and it is easier and more labor-saving when inflating. Almost all the previous 28 strokes were used on this pump.

Vertical pressure gauge pedal pump is a pressure gauge added to the traditional vertical pump. This not only has the advantages of traditional vertical pump system, that is, it is simple and labor-saving, but also can display tire pressure in real time.