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Low pressure operation, Operating procedures (cont'd) – DeVillbiss Air Power Company D21684 User Manual

Page 13

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13 — ENG

Low Pressure Operation:

(to siphon chemicals/soaps)

NOTE: Use only soaps and chemicals designed for
pressure washer use. Do not use bleach.

1.

Connect chemical hose to the pump by one of the
following methods:

a.

Press the chemical hose onto the barb fitting
located near the high pressure hose connec-
tion- see illustration A.

b.

Place chemical hose with fitting into
chemicalinjector (black elbow)-see illustration B.

2.

Place chemical hose filter into desired chemical.
Place the wand/lance into low pressure by one of
the following methods.

Multi-Reg — Push nozzle forward for low pressure—
Figure 12.

Hi-Low — Turn knob counter clockwise until it
stops—Figure 13.

Dual Lance — Turn black handle grip counter clock-
wise until it stops—Figure 14.

Quick Connect – Change to the soap nozzle for low
pressure.The soap nozzle can be identified as having
the larger hole in the nozzle. The soap nozzle is to be
used for drawing all chemicals and soaps-Figure 15.

3.

After use of chemical, siphon clean water through
chemical hose. Chemicals which remain in the
pump can damage and/or clog the pressure
valves and chemical injector assembly. Damage to
the pump due to this will not be covered under
warranty.

Multi-Reg (Low Pressure Setting)

Figure 13

Hi-Low

Figure 14

Dual Lance

Figure 12

Figure 15

Quick Connect with Soap Nozzle for

Low Pressure

Larger Hole

OPERATING PROCEDURES (cont'd)

Illustration A

Illustration B