OPERATION Pressure Adjustments, English

DeWalt DP3900, GX390, A20832 OPERATION Pressure Adjustments, Spray Wand Nozzles Fig, English

English

6. Place the nozzle holder (G) onto the panel assembly (F) and push each noz- zle holder into place.

7.Remove the five colored quick-connect nozzles from the plastic bag and insert them into correct grommet on the nozzle holder. Nozzles are color coded to match colored nozzles on panel assembly.

8. Using a 7/8" wrench, remove
shipping plug from pump by
turning it counterclock-wise.
Discard shipping plug.	H
NOTE: The high-pressure pump
was filled with oil at the factory.
Always check oil level before using (refer to Maintenance for
more information).

9.Remove dipstick/oil plug (H) from plastic bag and install into pump, tighten securely.

NOTE: The shipping plug must be removed and replaced with the dipstick/oil plug before operating pressure washer.

WARNING: Risk of bursting. Use a tire pressure gauge to check the tires pressure before each use and while inflating tires; see the tire sidewall for the correct tire pressure.

NOTE: Air tanks, compressors and similar equipment used to inflate tires can fill small tires similar to these very rapidly. Adjust pressure regulator on air supply to no more than the rating of the tire pressure. Add air in small increments and frequently use the tire gauge to prevent over inflation.

OPERATION

Pressure Adjustments

The pressure setting is preset at the factory to achieve optimum pres- sure and cleaning. To lower the pressure, follow these instructions.

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 40˚ nozzle (white). This nozzle delivers a less powerful stream of water and a wider spray pattern. Refer to Spray Wand Nozzles.

3.Adjust the pressure regulator on the

pump. Turn the pressure regulator knob (S)	S
counterclockwise to lower pressure. Once
you have finished using your pressure wash-
er, return the pressure regulator to its origi-
nal position by turning it clockwise.
CAUTION: Do not try to turn pressure regula-
tor knob past the built-in stop or damage to the
pump will result.

Spray Wand Nozzles (Fig. 1)

The nozzles for the spray wand are stored in the nozzle holder (G) on the panel assembly (F). Colors on the panel identify nozzle location and spray pattern. Refer to the following chart to choose the correct nozzle for the job to be performed.

Nozzle Color		Spray Pattern	Uses	Surfaces*

	0˚		powerful	metal or
Red			pinpoint for	concrete;
Red			very intense	DO NOT use
			very intense	DO NOT use
			cleaning	on wood