DeVillbiss Air Power Company A08989 Pressure Washer User Manual


 
9- ENG
A08989
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.
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.
For low pressure operation, extend
the nozzle of the multi-adjustable
spray wand as shown in Fig. 11.
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.
Low
Pressure
High
Pressure
40º fan spray
0º pencil stream
Fig. 9
Fig. 10a Fig. 10b
Fig. 11