一、高压喷淋清洗机在启动后出现压力不稳定或时有时无。

1、 The pressure of high-pressure spray cleaning machine is unstable or sometimes not stable after starting.

（1）高压水泵或进水管路内吸入了空气，这时我们拧开水泵排气阀，调低高压清洗机工作压力并运转一会，直到产生稳定的压力为止。

(1) When the air is sucked into the high-pressure water pump or the water inlet pipe, we turn on the exhaust valve of the water pump, lower the working pressure of the high-pressure cleaning machine and run it for a while until a stable pressure is generated.

（2）供水不足，这时要检查水源的压力是否足够，有的高压清洗机并不具备自吸功能，这时添置一个增压泵即可解决问题

(2) When the water supply is insufficient, check whether the pressure of the water source is enough. Some high-pressure cleaning machines do not have the self-priming function. At this time, the problem can be solved by adding a booster pump

（3）供水过滤器堵塞，这时只要清洗供水过滤器即可

(3) If the water supply filter is blocked, just clean the water supply filter

二、高压清洗机达不到设备的额定压力。

2、 The high pressure cleaning machine can not reach the rated pressure of the equipment.

（1）高压清洗机运转时有一定的工作压力达不到设备的额定压力或者说压力只停留在一定范围内而不能上升,在这种情况下，首先应先检查高压喷嘴的孔径是否匹配，如不匹配更换高压喷嘴即可。

(1) When the high-pressure cleaning machine is running, there is a certain working pressure that can not reach the rated pressure of the equipment, or the pressure only stays in a certain range and cannot rise. In this case, first check whether the aperture of the high-pressure nozzle matches, if not, replace the high-pressure nozzle.

（2）检查调压阀是否调到正确的位置。

(2) Check whether the pressure regulating valve is adjusted to the correct position.

（3）如果在排除这两种情况下压力仍然上不去，后检查高压泵内密封组件（O型圈、水封）是否完好，活塞是否损坏。

(3) If the pressure still can't go up after eliminating these two conditions, finally check whether the sealing components (O-ring and water seal) in the high-pressure pump are in good condition and whether the piston is damaged.

三、高压喷淋清洗设备在正常运转一定时间后压力降低 。

3、 After a certain period of normal operation, the pressure of high pressure spray cleaning equipment decreases.

（1）检查高压喷嘴是否严重磨损，如磨损比较严重更换高压喷嘴即可。小压力设备的高压喷嘴基本不会出现磨损现象，因为我们所配高压喷嘴基本都进行过热处理的，但对于大压力设备的高压喷嘴就难以保证了

(1) Check whether the high pressure nozzle is seriously worn. If the wear is serious, replace the high pressure nozzle. The high-pressure nozzle of small pressure equipment will not wear, because the high-pressure nozzle we are equipped with is basically superheated, but it is difficult to guarantee the high-pressure nozzle of large pressure equipment

（2）检查进水过滤器是否堵塞，如进水滤网堵塞了，将滤网取下用水清洗就可以了。如果是不清洁的水源造成过滤网经常堵塞，可增大外置过滤器，或更换洁净水源

(2) Check whether the inlet filter is blocked. If the inlet filter is blocked, remove the filter and clean it with water. If the filter screen is often blocked due to unclean water source, the external filter can be increased or the clean water source can be replaced

（3）分别检查高压喷淋清洗机的调压阀、溢流阀和高压水泵内部的密封组件，如：调压阀和溢流阀的O型圈是否磨损、弹簧与座面是否有磨损、泵内部的O型圈是否磨损、水封是否有损坏、单向阀是否磨损或被异物垫起

(3) Respectively check the pressure regulating valve, overflow valve and sealing components inside the high-pressure water pump of the high-pressure spray cleaning machine, such as whether the O-ring of the pressure regulating valve and overflow valve is worn, whether the spring and seat surface are worn, whether the O-ring inside the pump is worn, whether the water seal is damaged, and whether the check valve is worn or padded by foreign matters