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Use this procedure whenever starting the pressure
washer to help insure that the unit is ready to operate
and starting is done safely.
1. Check the oil level.
Pump: Add SAE 20 or 30 weight non-detergent oil
as necessary.
2. Turn on the water supply.
Never run the unit dry. Costly damage to the pump
c
WIII result. Always be sure the water supply IS
completely turned on before operating.
3.
4.
5.
6.
7
Trigger the gun until water sprays from the tip
indicating that the air is purged from the system.
Plug the electrical cord into a proper, grounded,
GFCI-protected outlet.
ALWAYS engage the gun’s trigger safety latch
whenever you stop spraying, even for a moment to
reduce the risk of fluid injection or splashing in the
eyes or on the skin if the gun is bumped or triggered
accidentally.
Most pressure washer spraying is done at full
pressure. On this pressure washer, there is an
adjustable unloader valve that permits operation at
less than maximum pressure. To reduce pressure,
for special cleaning applications, turn the pressure
control knob on the unloader counterclockwise, as
needed.
ALWAYS observe the following CAUTIONS to avoid
costly damage to the pressure washer.
CAUTION
DO NOTallow the pressure washer to idle for more
than 10 minutes. Doing so may cause the
recirculating water to overheat and seriously
damage the pump. Turn off the pressure washer if it
will not be spraying or cleaning at least every 10
minutes. If heated inlet water is used, reduce this
time further.
DO
NOT
run the pump dry, which will quickly
damage the pump. Be sure the water supply is
fully turned on before starting the pump.
DO
NOT
operate the pressure washer with the inlet
water screen removed. This screen helps keep
abrasive sediment out of the pump, which could
clog or scratch the pump. Keep this screen clean.
DO
NOT
pump caustic materials; such materials
may corrode the pump components.
Chemical Injector
BE
SURE
that all chemicals used in the chemical
injector are compatible with the wetted parts of the
hose, gun, wand and tip, as given in the Technical Data
(inside back cover). Always read the chemical
manufacturer’s literature before using any chemical in
this pressure washer.
pEptlz%LzTq
precautrons regardtng use of goggles, protective
A downstream chemical injector is provided with the
pressure washer. There is a three position selector valve
for no chemical (off), chemical 1 or chemical 2.
Chemical 1 and chemical 2 cannot be applied
simultaneously. There are also metering valves to
control the flowrate of each chemical. The chemical
adjustment knob on the injector under the hood should
be a full two turns counterclockwise from the closed
(clockwise) position. Insert each cherr cal filter
(attached with clear tubing to the chemica. metering
valves) into a container of chemical. Turnthe control ring
on the adjustable nozzle clockwise. This causes a drop
in pressure that actuates the chemical injector. Closing
the adjustable nozzle deactivates the chemical injector
and produces high pressure for rinsing.
WARNING
DO
NOT
attempt to open or close the adjustable
nozzle when the spray gun is in use. Be sure that
the trigger safety latch on the gun is in the “ON”
position before adjusting to avoid serious bodily
injury or fluid injection.
Check the distance that you will need to hold the spray
nozzle from the surface by test spraying on a scrap of
similar material. For soft surfaces, such as wood, hold
the nozzle about 3 ft (1 m) from the surface and gradually
bring it closer, checkingto see if the high pressure spray
is damaging the surface.
Mist wet the surface with cleaning solution. Let it soak
briefly, then use the high pressure rinse to “chisel” off
the soil. Keep the nozzle at an angle to the surface and
at a distance determined to be best for the surface. If
some soil remains, repeat the procedure, letting the
chemical soak a little longer. Stubborn soil can be
cleaned off better with a stronger, heated cleaning
solution.
Protect surfaces that might be damaged by the cleaning
solution or the high pressure spray. Rinse the solution
before it dries.
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