Adjustments are made with the pressure washer running and the trigger gun closed. Loosen the lock nut and start the adjustment procedure with the adjustment bolt fully turned towards the inside of the unloader body. It should be noted that this is the opposite procedure to that followed for a pressure type unloader. The pressure output of a flow-actuated unloader increases as the bolt is screwed onto the body of the unloader.
Turn the bolt one full turn at a time, then open the trigger and wait five seconds before measuring the pressure. Continue adjusting one lap at a time and check the results after each lap until you get the desired pressure. A pressure washer converts water from the garden hose into a high-pressure sprayer that is useful for cleaning siding, concrete walkways, decks and more. The models range from lightweight electric models to industrial-quality gas-powered models that develop high pressures.
You might be wondering Can you adjust the pressure in a pressure washer?. Some machines, but not all, have a pressure regulation control and you can adjust the width of the fan on all models. However, the most important adjustment is the distance between the tip and the surface you are going to clean. When selecting a pressure washer, it's important to know which nozzle is used for different tasks and surfaces.
Pressure washers usually come with interchangeable, color-coded nozzles or an all-in-one adjustable nozzle. Both types of nozzles allow you to change the angle of water spraying depending on the task. The adjustable nozzles are practical because you just need to turn to change the width or pattern of the sprayer. Most pressure washers come with four universal nozzles and a soap nozzle.
The compensation relief valve is a pressure-type relief valve with a compensation function that makes the characteristic pressure increase that occurs when the trigger gun is opened less intense. The tip controls the width of the spray pattern, and a narrow pattern is potentially destructive, especially if pressure is increased. Some pressure washers come with a feature that allows you to insert detergent into the spray, and when you use this feature, you may have to adjust the pressure to its lowest level. Many pressure washers now have detergent tanks that make it easy to add soap to the pressure washer container or siphon hose.
Pressure washers use water at ground temperature, while pressure washers use a heating element to heat the water before spraying it. An adjustment knob or bolt allows you to adjust the tension of the springs on the ball, either by compressing the spring downwards to create more resistance or by expanding the spring, which causes it to exert less pressure on the ball.