DeVillbiss Air Power Company A08989, S2600 Pressure Washer Terminology, Pressure Adjustments

PRESSURE WASHER

TERMINOLOGY

PSI: Pounds per Square Inch. The unit of measure for water pressure. Also used for air pressure, hydraulic pressure, etc.

GPM: Gallons Per Minute. The unit of measure for the flow rate of water.

CU: Cleaning Units. GPM multiplied by PSI. GPM x PSI = CU

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.

Detergent injection system: Mixes cleaning solution 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 amount of pressure will be applied to the surface to be cleaned.

2.Rotate the nozzle at the end of the multi-adjustable spray wand to widen the fan spray.

The wider fan spray will minimize the pressure on the surface to be cleaned.

DO NOT attempt to increase pump pressure. A higher pressure setting

than the factory set pressure may damage pump.

HOW TO USE SPRAY WAND

Your pressure washer is equipped with a multi-adjustable spray wand with both high and low pressure settings. The high pressure setting is for cleaning and rinsing, the low pressure setting is for applying detergent/cleaning solutions or cleaning solutions to surfaces.

When using the high pressure

setting, DO NOT allow the jet-like spray to come in contact with unprotected skin, eyes, or with any pets or animals. Serious injury can occur.

Risk of injection or injury to person.

DO NOT direct discharge stream toward persons.

For high pressure operation, pull back the nozzle of the multi-adjustable spray wand as shown in Fig. 9.

Fig. 9

High

Pressure

The nozzle at the end of the multi- adjustable spray wand can be rotated to change the high pressure spray pattern from a 0º pencil stream to a 40º fan spray, as shown in Fig. 10 a and 10b. Markings have been placed on the nozzle to help you select the spray pattern.

Fig. 10a	Fig. 10b
40º fan spray	0º pencil stream

For low pressure operation, extend the nozzle of the multi-adjustable spray wand as shown in Fig. 11.

Fig. 11

Low

Pressure

9- ENG A08989