PRESSURE WASHER TERMINOLOGY (continued)

Bypass Mode: Allows water to re-circulate within pump when the gun trigger is not pulled.

Allowing the unit to run for more than

two minutes without the gun trigger pulled could cause overheating and damage to the pump.

Thermal Relief Valve:

Thermal

When the temperature

Relief

inside the pump rises

Valve

 

too high the valve will

 

open and release a

 

gush of water in an

 

effort to lower the

 

temperature inside the

 

 

pump. The valve will then close.

Chemical Injection System: Mixes cleaners or cleaning solvents with the water to improve cleaning effectiveness.

Water Supply: All pressure washers must have a source of water. The minimum requirements for a water supply are 20 PSI and 5 gallons per minute.

PRESSURE WASHER OPERATING FEATURES

PRESSURE ADJUSTMENTS

The pressure setting is preset at the factory to achieve optimum pressure and cleaning. If you need to lower the pressure, it can be accomplished by these methods.

1.Back away from the surface to be cleaned. The further away you are, the less the pressure will be on the surface to be cleaned.

2.Change to the 40º nozzle - (white) this nozzle delivers a less powerful stream of water and a wider spray pattern.

DO NOT attempt to increase pump

pressure. A higher pressure setting than the factory set pressure may damage pump.

3.Adjust the pres-

sure regulator

Pressure

Adjustment

on the pump.

Knob

Turn the pressure regulator knob counterclockwise to lower pressure. Refer to the

illustrations to identify your pres- sure regulator. Once you have fin- ished using your pressure washer, return the pressure regulator to its original position by turning it clockwise.

DO NOT try to turn pressure regulator

knob past the built-in stop or damage to pump will result.

A00543

8- ENG

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Delta A00543, DTH3635 instruction manual Pressure Washer Terminology, Pressure Adjustments