DeVillbiss Air Power Company Excell A20118 - Manual (Page 11)

11 - ENG A20118
DO NOT attempt
to increase pump
pressure. A higher pressure setting
than the factory set pressure may
damage pump.
TO USE GATLING™ SPRAY
WAND
The nozzles for the spray wand are
stored in the gatling spray wand. See
chart to choose the correct nozzle for
the job to be performed.
CHANGING NOZZLES ON SPRAY
WAND
Risk of fl uid
injection. Do not
direct discharge stream toward
persons, unprotected skin, eyes or
any pets or animals. Serious injury
will occur.
Risk of fl uid
injection. Do Not
attempt to change nozzles while
pressure washer is running. Turn
engine off before changing nozzles.
1. Press turret release button to
release turret.
2. Rotate turret to chosen nozzle.
3. Push turret onto nozzle and lock
into place.
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.
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.
Thermal Relief Valve:
Thermal Relief
Valve
When the temperature
inside the pump rises
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.
PRESSURE WASHER
OPERATING FEATURES
PRESSURE ADJUSTMENTS
The pressure setting is preset at the
factory to achieve op ti mum pres sure
and cleaning. If you need to lower the
pres sure, it can be accomplished by
these meth ods.
1. Back away from the sur face 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 - this
nozzle delivers a less powerful
stream of water and a wider spray
pattern.