DeVillbiss PWH3635, A12495 User Manual
Pressure Washer
Operation Manual
for model PWH3635
Do Not return this product to the
retailer! Questions? 1-800-888-2468
Learn more about your pressure
washer, get answers to frequently
asked questions, and register on
line at www.devap.com
Table of Contents
Safety Guidelines/Definitions .................
Consumer Saftey Information ................
Important Safety Instructions ..............2-5
Carton Contents ......................................
Assembly Instructions .............................
Operating Instructions ...................... 7-11
Maintenance .................................... 12-13
Storage ..................................................14
Trouble Shooting Guide .................. 15-16
Warranty ................................................18
Español ............................................19-36
Français ........................................... 37-56
IMPORTANT
Please make certain that the
2
person who is to use this
2
equipment carefully reads and
understands these instructions
6
before operating.
6
Record All Information and attach sales
receipt here for future reference:
Purchase Date:_______________________
Serial #: _____________________________
Part No. A12495 Rev. 1 7/07/05
SAFETY GUIDELINES - DEFINITIONS
This manual contains information that is important for you to know and understand.
This information relates to protecting YOUR SAFETY and PREVENTING EQUIPMENT
PROBLEMS. To help you recognize this information, we use the symbols below. Please
read the manual and pay attention to these symbols.
Indicates an imminently
hazardous situation
which, if not avoided, will result in death
or serious injury.
Indicates a potentially
hazardous situation
which, if not avoided, could result in death
or serious injury.
which, if not avoided, may result in minor
or moderate injury.
potentially hazardous situation which, if not
avoided, may result in property damage.
Indicates a potentially
hazardous situation
Used without the safety
alert symbol indicates a
CONSUMER SAFETY INFORMATION
This product may not be equipped with a spark arresting muffler.
If the product is not equipped and will be used around flammable
materials, or on land covered with materials such as agricultural crops, forest, brush,
grass, or other similar items, then an approved spark arrester must be installed and
is legally required in the state of California. It is a violation of California statutes
section 130050 and/or sections 4442 and 4443 of the California Public Resources
Code, unless the engine is equipped with a spark arrester, as defined in section 4442,
and maintained in effective working order. Spark arresters are also required on some
U.S. Forest Service land and may also be legally required under other statutes and
ordinances.
Engine exhaust contains chemicals known, in certain quantities, to
cause cancer, birth defects or other reproductive harm.
IMPORTANT SAFETY INSTRUCTIONS
Do not operate this unit until you have read and understand this
Operation, and Maintenance Instructions.
Operators Manual and the Engine Owners Manual for Safety,
READ AND SAVE THESE INSTRUCTIONS
HAZARD
RISK OF EXPLOSION OR FIRE
WHAT CAN HAPPEN
• Spilled gasoline and it’s vapors can
become ignited from cigarette sparks,
electrical arcing, exhaust gases, and hot
engine components such as the muffler.
• Heat will expand fuel in the tank which
could result in spillage and possible fire
explosion.
• Operating the pressure washer in an explosive environment could result in a fire.
A12495
TO PREVENT IT
HOW
• Shut off engine and allow it to cool before
adding fuel to the tank.
• Use care in filling tank to avoid spilling fuel.
Move pressure washer away from fueling
area before starting engine.
• Keep maximum fuel level ½" below top of
tank to allow for expansion.
• Operate and fuel equipment in well ventilated areas free from obstructions. Equip
areas with fire extinguisher suitable for
gasoline fires.
2- ENG
HAZARD
RISK OF EXPLOSION OR FIRE (continued)
WHAT CAN HAPPEN
• Materials placed against or near the
pressure washer can interfere with its proper
ventilation features causing overheating and
possible ignition of the materials.
• Muffler exhaust heat can damage painted
surfaces, melt any material sensitive to
heat (such as siding, plastic, rubber, or
vinyl), and damage live plants.
• Improperly stored fuel could lead to
accidental ignition. Fuel improperly
secured could get into the hands of
children or other unqualified persons.
• Use of acids, toxic or corrosive chemicals,
poisons, insecticides, or any kind of
flammable solvent with this product could
result in serious injury or death.
HAZARD
RISK TO BREATHING
WHAT CAN HAPPEN
• Breathing exhaust fumes will cause
serious injury or death! Engine exhaust
contains carbon monoxide, an odorless
and deadly gas.
• Some cleaning fluids contain substances
which could cause injury to skin, eyes, or
lungs.
TO PREVENT IT
HOW
• Never operate pressure washer in an area
containing dry brush or weeds.
• Always keep pressure washer a minimum of
four feet away from surfaces (such as houses,
automobiles, or live plants) that could be
damaged from muffler exhaust heat.
• Store fuel in an OSHA approved container,
in a secure location away from work area.
• Do not spray flammable liquids.
TO PREVENT IT
HOW
• Operate pressure washer in a well
ventilated area. Avoid enclosed areas such
as garages, basements, etc.
• Never operate unit in a location occupied
by humans or animals.
• Use only cleaning fluids specifically recommended for high pressure washers. Follow
manufacturers recommendations. Do not
use chlorine bleach or any other corrosive
compound.
HAZARD
RISK TO FLUID INJECTION
WHAT CAN HAPPEN
• Your washer operates at fluid pressures
and velocities high enough to penetrate
human and animal flesh, which could
result in amputation or other serious injury.
Leaks caused by loose fittings or worn
or damaged hoses can result in injection
injuries. DO NOT TREAT FLUID INJECTION
AS A SIMPLE CUT! See a physician
immediately!
• Injuries can result if system pressure is not
reduced before attempting maintenance or
disassembly.
TO PREVENT IT
HOW
• Never place hands in front of nozzle.
• Direct spray away from self and others.
• Make sure hose and fittings are tightened
and in good condition. Never hold onto the
hose or fittings during operation.
• Do not allow hose to contact muffler.
• Never attach or remove wand or hose
fittings while system is pressurized.
• To relieve system pressure, shut off
engine, turn off water supply, and pull gun
trigger until water stops flowing.
• Use only hoses and accessories rated
for pressure higher than your pressure
washer's PSI.
3- ENG
A12495
HAZARD
RISK OF
WHAT CAN HAPPEN
• Use of acids, toxic or corrosive chemicals,
poisons, insecticides, or any kind of
flammable solvent with this product could
result in serious injury or death.
RISK OF
WHAT CAN HAPPEN
• Spray directed at electrical outlets or
switches, or objects connected to an
electrical circuit, could result in a fatal
electrical shock.
RISK OF
ELECTRICAL SHOCK
WHAT CAN HAPPEN
• Contact with hot surfaces, such as
engines exhaust components, could
result in serious burn.
CHEMICAL
BURN
ELECTRICAL SHOCK
HAZARD
ELECTRICAL SHOCK
RISK OF HOT
HOW TO PREVENT IT
• Do not use acids, gasoline, kerosene,
or any other flammable materials in this
product. Use only household detergents,
cleaners and degreasers recommended
for use in pressure washers.
• Wear protective clothing to protect eyes
and skin from contact with sprayed
materials.
HAZARD
TO PREVENT IT
HOW
• Unplug any electrically operated product
before attempting to clean it. Direct spray
away from electric outlets and switches.
RISK OF
SURFACES
TO PREVENT IT
HOW
• During operation, touch only the control
surfaces of the pressure washer. Keep
children away from the pressure washer
at all times. They may not be able to
recognize the hazards of this product.
RISK OF INJURY OR PROPERTY DAMAGE
WHEN TRANSPORTING OR STORING
WHAT CAN HAPPEN
• Fuel or oil can leak or spill and could
result in fire or breathing hazard, serious
injury or death can result. Fuel or oil
leaks will damage carpet, paint or other
surfaces in vehicles or trailers.
A12495
HAZARD
TO PREVENT IT
HOW
• If pressure washer is equipped with a
fuel shut-off valve, turn the valve to the
off position before transporting to avoid
fuel leaks. If pressure washer is not
equipped with a fuel shut-off valve, drain
the fuel from tank before transporting.
Only transport fuel in an OSHA approved
container. Always place pressure washer
on a protective mat when transporting to
protect against damage to vehicle from
leaks. Remove pressure washer from
vehicle immediately upon arrival at your
destination.
4- ENG
RISK OF UNSAFE OPERATION
WHAT CAN HAPPEN
• Unsafe operation of your pressure washer
could lead to serious injury or death to
you or others.
• If proper starting procedure is not
followed, engine can kickback causing
serious hand and arm injury.
• The spray gun/wand is a powerful cleaning tool that could look like a toy to a
child.
• Reactive force of spray will cause gun/
wand to kickback, and could cause the operator to slip or fall, or misdirect the spray.
Improper control of gun/wand can result in
injuries to self and others.
HAZARD
TO PREVENT IT
HOW
• Do not use chlorine bleach or any other
corrosive compound.
• Become familiar with the operation and
controls of the pressure washer.
• Keep operating area clear of all persons,
pets, and obstacles.
• Do not operate the product when
fatigued or under the influence of alcohol
or drugs. Stay alert at all times.
• Never defeat the safety features of this
product.
• Do not operate machine with missing,
broken, or unauthorized parts.
• Never leave wand unattended while unit
is running.
• If engine does not start after two pulls,
squeeze trigger of gun to relieve pump
pressure. Pull starter cord slowly until
resistance is felt. Then pull cord rapidly
to avoid kickback and prevent hand or
arm injury.
• Keep children away from the pressure
washer at all times.
• Do not overreach or stand on an unstable
support.
• Do not use pressure washer while
standing on a ladder.
• Grip gun/wand firmly with both hands.
Expect the gun to kickback when
triggered.
RISK OF INJURY FROM SPRAY
WHAT CAN HAPPEN
• High velocity fluid spray can cause
objects to break, propelling particles at
high speed.
• Light or unsecured objects can become
hazardous projectiles.
HAZARD
HOW
TO PREVENT IT
• Always wear ANSI approved Z87 safety
glasses.Wear protective clothing to protect
against accidental spraying.
• Never point wand at, or spray people or
animals.
• Always secure trigger lock when wand
is not in service to prevent accidental
operation.
• Never permanently secure trigger in pull
back (open) position.
5- ENG
A12495
Engine Frame and
Wheel Assembly
CARTON CONTENTS
English/
Spanish
Operation
Manual
Engine
Manual
Spray Gun
Chemical
Hose
Registration
card
Nozzle
Cleaning
Tool
Bagged Parts
Nozzle
Holder
Quick
Connect
Nozzles
High Pressure
Hose
Quick Connect Spray Wand
ASSEMBLY INSTRUCTIONS
1. Place handle assembly onto frame,
depress the snap buttons, and slide
the handle assembly onto the frame
until snap buttons snap into place.
2. Attach high
pressure hose
to gun. Tighten
securely.
3. Connect wand to gun. Tighten
securely.
4. Place the nozzle holder onto
the panel (located on the handle
assembly) and push each nozzle
holder into place.
Handle
Engine
Oil
5. Remove five colored quick
connect nozzles from plastic
bag and insert them into correct
grommet on the nozzle holder.
NOTE: Nozzles are color coded to
match colored nozzles on panel.
NOTE: The high pressure pump was
filled with oil at the factory. There is no
need to add oil at this time, see the
Maintenance section of this manual
for Maintenance information.
6. Add engine oil (supplied) to engine.
Refer to Engine Owners Manual
supplied by engine manufacturer
for correct procedure.
NOTE: There will be a slight amount of
oil in the engine from factory testing.
The shipping plug
must be removed
and replaced with the dipstick/oil
plug before operating pressure
washer.
7. Using a 11/16"
wrench, remove
shipping plug from
pump by turning it
counterclockwise.
Discard plug.
8. Remove dipstick/oil plug from
plastic bag and install into pump,
tighten securely.
A12495
6- ENG
OPERATING INSTRUCTIONS
Compare the illustrations with your unit to familiarize yourself with the location
of various controls and adjustments. Save this manual for future reference.
Spray
Engine
Quick
Connect
Spray Wand
High Pressure Pump
Gun
High
Pressure
Hose
BASIC ELEMENTS OF A
PRESSURE WASHER
High Pressure Pump: Increases the
pressure of the water supply.
Engine: Drives the high pressure
pump.
High Pressure Hose:
pressurized water from the pump to
the gun and spray wand.
Spray Gun: Connects with spray
wand to control water flow rate,
direction, and pressure.
Quick Connect Spray Wand: Allows
the user to quickly change out highpressure nozzles. See How To Use
Spray Wand instructions in this section.
Chemical Hose (not shown): Feeds
cleaning agents into the pump to
mix with the water. See How To
Apply Chemicals/Cleaning Solvents
instructions in this section.
Carries the
BASIC ELEMENTS OF AN
ENGINE
Refer to the engine manual for
location and operation of engine
controls.
Choke Control:
carburetor choke valve.
Starter Grip: Pulling starter grip
operates recoil starter to crank
engine.
Fuel Valve Lever:
connection between fuel tank and
carburetor.
Engine Switch: Enables and disables
ignition system.
7- ENG
Opens and closes
Opens/closes
A12495
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.
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.
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
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 the pressure will
be on the surface to be cleaned.
2. Change to the 40º nozzle (white) this nozzle delivers a less
powerful stream of water and a
wider spray pattern.
DO NOT attempt
pressure. A higher pressure setting
than the factory set pressure may
damage pump.
3. Adjust the
pressure regulator on the
pump. Turn
the pressure
regulator knob
counterclockwise to lower
pressure. Refer
to the illustrations to identify your
pressure regulator. Once you
have finished using your pressure
washer, return the pressure regulator to its original position by
turning it clockwise.
knob past the built-in stop or
damage to pump will result.
to increase pump
Pressure
Regulator
Knob
DO NOT try to turn
pressure regulator
A12495
8- ENG
READ AND UNDERSTAND ALL WARNINGS BEFORE STARTING UNIT
When using the high pressure setting, DO NOT allow the high
or with any pets or animals. Serious injury can occur.
Your washer operates at fluid pressures and velocities high enough to penetrate
human and animal flesh, which could result in amputation or other serious injury.
Leaks caused by loose fittings or worn or damaged hoses can result in injection
injuries. DO NOT TREAT FLUID INJECTION AS A SIMPLE CUT! See a physician
immediately!
NEVER fill fuel tank completely. Fill tank to 1/2" below bottom of filler neck
to provide space for fuel expansion. Wipe any fuel spillage from engine and
equipment before starting engine.
NEVER run engine indoors or in enclosed, poorly ventilated areas. Engine exhaust
contains carbon monoxide, an odorless and deadly gas.
DO NOT let hoses come in contact with very hot engine muffler during or
immediately after use of your pressure washer. Damage to hoses from contact with
hot engine surfaces will NOT be covered by warranty.
DO NOT use hot water, use cold water only.
NEVER turn water supply off while pressure washer engine is running or damage to
pump will result.
DO NOT stop spraying water for more than two minutes at a time. Pump operates
in bypass mode when spray gun trigger is not pressed. If pump is left in bypass
mode for more than two minutes internal components of the pump can be
damaged.
If you do not understand these precautions, please call
speak to a service representative for further instructions.
pressure spray to come in contact with unprotected skin, eyes,
NEVER fill fuel tank when engine is running or hot. Do not
smoke when filling fuel tank.
NEVER pull water supply hose to move pressure washer. This
could damage hose and/or pump inlet.
1-800-888-2468 to
TO USE SPRAY WAND
The nozzles for the spray wand are stored in nozzle holder on the panel
assembly. Colors on the panel identify nozzle location and spray pattern. See
chart to choose the correct nozzle for the job to be performed.
Nozzle Color Red Yellow Green White Black
Spray
Pattern
Uses
Surfaces *
*
0º
powerful
pinpoint for
very intense
cleaning
Metal or
concrete
DO NOT use
on wood
The high pressure spray from your pressure washer is
capable of causing damage to surfaces such as wood,
15º
intense
cleaning of
small areas
metal,
concrete, or
wood
glass, automobile paint, auto striping and trim, and delicate objects such as
flowers and shrubs. Before spraying, check the item to be cleaned to assure
yourself that it is strong enough to resist damage from the force of the spray.
9- ENG
25º 40º low pressure
intense
cleaning of
larger areas
metal,
concrete, or
wood
covers wide
areas of
cleaning
metal,
concrete,
wood, or vinyl
applies
cleaning
solutions
metal,
concrete,
wood, or
vinyl
A12495
CHANGING NOZZLES ON SPRAY
WAND
Risk of Flying
Object could
cause risk of serious injury. DO
NOT attempt to change nozzles
while pressure washer is running.
Turn engine off before changing
nozzles.
1. Pull quick
connect coupler
back and insert
nozzle.
2. Release quick
connect coupler
and twist nozzle to make sure it
is secure in coupler.
Risk of Flying
Object could
cause risk of serious injury. Ensure
nozzle is completely inserted in
QC socket, and QC snap ring is
fully engaged (forward) before
squeezing gun trigger.
Risk of injection or
injury to person.
Do not direct discharge stream
toward persons, unprotected
skin, eyes, or any pets or animals.
Serious injury can occur.
HOW TO APPLY CHEMICALS
AND CLEANING SOLVENTS
Applying chemicals or cleaning
solvents is a low pressure operation.
NOTE: Use only soaps and chemicals
designed for pressure washer use.
not use bleach.
To Apply chemicals:
1. Press
chemical hose
onto barbed
fitting located
near high
pressure hose
connection
of pump as
shown.
2. Place other end
of chemical
hose with filter on it into container
holding chemical/cleaning
solution. NOTE: For every 7
gallons of water pumped 1 gallon
of chemical/cleaning solution will
be used.
3. Install low pressure (black)
nozzle into quick connect fitting
of spray wand, see How To Use
Spray Wand paragraph in this
section.
4. After use of chemicals,
chemical hose into container
of clean water and draw
clean water through chemical
injection system to rinse
system thoroughly. If chemicals
remain in the pump it could be
damaged. Pumps damaged due
to chemicals will not be covered
under warranty.
NOTE: Chemicals and soaps will not
siphon when spray wand is in the high
pressure setting.
Do
Barbed
Fitting
place
A12495
10- ENG
STARTING
Prior to starting, refer to your
engine manual for proper starting
procedure.
1. In a well ventilated outdoor area
add fresh, high quality, unleaded
gasoline with a pump octane
rating of 86 or higher. Do not
overfill. Wipe up spilled fuel before
starting the engine. Refer to
Engine Owners Manual for correct
procedure.
2. Check engine oil level.
Engine Owners Manual for correct
procedure. NOTE: There will
be a slight amount of oil in the
engine from factory testing.
3. Verify the filter
screen
is in
water inlet of
pump. NOTE:
Cone side
faces out.
4. Connect water source to pump
inlet. NOTE: Water source must
provide a minimum of 5 gallons per
minute at 20 PSI.
5. Connect high pressure hose to
pump outlet.
High Pressure Hose
Water Source
6. If applying a chemical or
cleaning solution, see How
To Apply Chemicals/Cleaning
Solvents instructions in this
section.
7. Turn water source on.
NOTE: Failure to do so could
cause damage to the pump.
See
Filter Screen
8. Start engine. See Engine
Owners Manual for correct
procedure.
NOTE: When engine
rope is pulled, pressure starts
building in the gun. If the engine
does not start after two pulls,
pull the gun trigger to relieve this
pressure.
9. Depress trigger on gun to
start water flow.
NOTE: Stand
on a stable surface and grip
gun/spray wand firmly with both
hands. Expect the gun to kick
when triggered.
10. Release trigger to stop water
flow.
11. Adjust spray for the task
being
performed by changing quick
connect nozzle. See How To Use
Spray Wand instructions in this
section.
SHUTTING DOWN
1. After each use, if you have
applied chemicals, place chemical
hose into container of clean water
and draw clean water through
chemical injection system to rinse
system thoroughly.
to do so could cause damage to
the pump.
2. Turn engine off.
Owner’s Manual.
turn the water off with the engine
running.
3. Turn water source off.
4. Pull trigger on spray gun
relieve any water pressure in
hose or spray gun.
5. See Storage section
manual for proper storage
procedures.
NOTE: Failure
See Engine
NOTE: NEVER
to
in this
11- ENG
A12495
MAINTENANCE
When performing
maintenance, you
may be exposed to hot surfaces,
water pressure, or moving parts
that can cause serious injury or
death!
Before performing any maintenance
or repair, disconnect spark plug
wire, let engine cool and release
all water pressure. The engine
contains flammable fuel. DO NOT
smoke or work near open flames
while performing maintenance.
To ensure efficient operation and
longer life of your pressure washer,
a routine maintenance schedule
should be prepared and followed.
If the pressure washer is used in
unusual conditions, such as hightemperatures or dusty conditions,
more frequent maintenance checks
will be required.
ENGINE
Consult the Engine Owners
Manual for the manufacturer's
recommendations for any and all
maintenance. Consult the Engine
Owners Manual for the manufacturer's recommendations for any and
all maintenance. NOTE: The frame is
equipped with an oil drain hole to help
make changing the engine oil easier.
PUMP
NOTE: The pump was filled with oil at
the factory.
1. Change pump oil after the first ten
(10) hours of operation and every
fifty (50) hours thereafter.
To Check Oil:
1. Remove
dipstick/oil
plug from
pump and
wipe clean.
2. Insert
dipstick/oil
plug fully
into pump,
then
remove it.
3. Oil level is correct when oil covers
the lower 1/2 inch of end of
dipstick/oil plug.
How To Change Pump Oil
1. Loosen dipstick/oil plug.
2. Place a container under the oil
drain plug.
3. Remove oil drain plug.
4. After oil is drained replace oil
drain plug. Tighten securely.
5. Remove dipstick/oil plug and fill
with 18.54 oz (548.3 ml) of 30W
non detergent oil.
6. Replace dipstick/oil plug and
tighten securely.
Dipstick/oil plug
Oil Drain Plug
A12495
12- ENG
NOZZLE CLEANING
If the nozzle becomes clogged
with foreign materials, such as dirt,
excessive pressure may develop. If
the nozzle becomes partially clogged
or restricted, the pump pressure will
pulsate. Clean the nozzle immediately
using the nozzle kit supplied and the
following instructions:
1. Shut off the pressure washer and
turn off the water supply.
2. Pull trigger on gun handle to
relieve any water pressure.
3. Disconnect the spray wand from
the gun.
4. Remove the high-pressure nozzle
from the spray wand. Remove
any obstructions with the nozzle
cleaning tool provided and
backflush with clean water.
5. Direct water supply into spray
wand to backflush loosened
particles for 30 seconds.
6. Reassemble the nozzle to the
wand.
7. Reconnect spray wand to gun
and turn on water supply.
8. Start pressure washer and place
spray wand into high pressure
setting to test.
HOW TO CLEAN THE WATER
INLET FILTER
This screen filter should be checked
periodically and cleaned if necessary.
1. Remove filter
by grasping
end and
removing it
from water inlet
of pump as
shown.
2. Clean filter by flushing it with
water on both sides.
3. Re-insert filter
of pump. NOTE: Cone side faces
out.
NOTE: Do not operate pressure
washer without filter properly installed.
into water inlet
Filter Screen
HOW TO REMOVE THE
WHEELS
1. Using a 1/8" hex
head wrench
loosen set screw
in hub collar.
2. Slide hub collar
from axle and
remove the tire.
13- ENG
A12495
STORAGE
ENGINE
Consult the Engine Owners Manual for
the manufacturer's recommendations
for storage.
PUMP
The manufacturer recommends using
a pump protector/winterizer when
storing the unit for more than 30 days
and/or when freezing temperatures
are expected. If a pump protector/
winterizer is not available, *RV
antifreeze needs to be run through the
pump as outlined in the steps below.
NOTE: Using a pump protector/
winterizer or *RV antifreeze is to
provide proper lubrication to the
internal seals of the pump regardless
of temperature or environment.
1. Obtain a funnel, six ounces
of *RV antifreeze, and 16 - 36
inches of garden hose with a
male hose connector attached to
one end.
Use only RV
antifreeze. Any
other antifreeze is corrosive and
can damage pump.
2. Disconnect spark plug wire.
3. Connect length of garden hose to
water inlet of pump.
4. Add *RV antifreeze to hose as
shown.
5. Pull engine starter rope slowly
several times until antifreeze
comes out of high pressure hose
connection of pump.
6. Remove garden hose from water
inlet of pump.
7. Reconnect spark plug wire.
*Windshield washer fluid may also be
used
PRESSURE WASHER
1. Drain all water from high
pressure hose, coil it, and store
it in cradle of the pressure
washer handle.
2. Drain all water from spray gun
and wand by holding spray
gun in a vertical position with
nozzle end pointing down and
squeezing trigger. Store in gun
holder.
3. Store chemical hose so it is
protected from damage.
4. If space is needed, remove
handles and replace as shown.
A12495
14- ENG
PROBLEM
Engine will
not start (see
Engine Manual
for further
engine
troubleshooting)
No or low
pressure
(initial use)
TROUBLE SHOOTING GUIDE
CAUSE
No fuel.
Low oil
Pressure builds up after two pulls
on the recoil starter or after initial
use.
Choke lever in the "No Choke"
position.
Spark plug wire not attached. Attach spark plug wire.
Engine ON/OFF switch in OFF
position.
Choke lever in the "Choke"
position on a "hot" engine or an
engine that has been exposed to
thermal heat for a long period of
time.
Fuel valve closed
Spray wand not in high pressure. See How to Use Spray Wand
Low water supply.
Leak at high pressure hose fitting.
Nozzle obstructed.
Water filter screen clogged. Remove and clean filter.
Air in hose.
Choke lever in the "Choke" position. Move choke to the "No Choke"
High pressure hose is too long.
CORRECTION
Add Fuel.
Add required amount of oil.
Squeeze gun trigger to relieve
pressure.
Move choke to the "Choke"
position.
Place engine ON/OFF switch in
ON position.
Move choke to the "No Choke"
position.
Move the fuel valve lever to the
"Open" position.
instructions in the Operation
Section.
Water supply must be at least 5
GPM @ 20 PSI.
Repair leak. Apply sealant tape
if necessary.
See Nozzle Cleaning instructions
in the Maintenance section.
Turn off the engine, then the
water source. Disconnect the
water source from the pump inlet
and turn the water source on
to remove all air from the hose.
When there is a steady stream
of water present, turn water
source off. Re-connect water
source to pump inlet and turn on
water source. Squeeze trigger to
remove remaining air
position.
Use high pressure hose under
100 feet.
15- ENG
A12495
PROBLEM
Will not draw
chemicals
CAUSE
Spray wand not in low pressure.
Chemical filter clogged.
Chemical screen not in cleaning
solution.
CORRECTION
See How to Use Spray Wand
paragraph in the Operation
Section.
Clean filter.
Make sure end of chemical hose
is fully submerged into cleaning
solution.
No or low
pressure
(after period
of normal
use)
Water leaking
at gun/
spray wand
connection
Water
leaking at
pump
Oil leaking
at pump
Pump
Pulsates
Chemical too thick.
Pressure hose is too long
Chemical build up in chemical
injector.
Worn seal or packing
Worn or obstructed valves.
Worn unloader piston.
Worn or broken o-ring.
Loose hose connection.
Loose connections.
Piston packings worn.
Worn or broken o-rings.
Pump head or tubes damaged
from freezing.
Oil seals worn. Have replaced by AWSC
Loose drain plug.
Worn drain plug o-ring
Worn fill plug o-ring.
Pump overfilled.
Incorrect oil used.
Vent plug is clogged.
Nozzle obstructed.
Dilute chemical. Chemical should
be the same consistency as water.
Lengthen water supply hose
instead of high pressure hose.
Have parts cleaned or replaced
by AWSC.
Have replaced by AWSC.
Have replaced by AWSC.
Have replaced by AWSC.
Check and replace.
Tighten.
Tighten.
Have replaced by AWSC.
Have replaced by AWSC.
Have replaced by AWSC.
Tighten.
Check and replace.
Check and replace.
Check for correct amount.
Drain and fill with correct amount
and type of oil.
Clean vent plug; blow air through
it to remove any blockage. If problem persists, replace plug.
See Nozzle Cleaning paragraph in
the Maintenance section for the
correct procedure.
A12495
16- ENG
NOTES
17- ENG
A12495
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