DeVillbiss Air Power Company Devap A16091, Devap DVH3000 Operation Manual
Part No. A16091 Rev. 0 2/23/06
IMPORTANT
Please make certain that the person who is to use this equipment carefully
reads and understands these instructions before operating.
Operation Manual
for Pressure Washer
Model DVH3000
Table of Contents
Safety Guidelines/Definitions..................2
Consumer Saftey Information ................2
Important Safety Instructions ..............2-7
Specifications .......................................... 7
Carton Contents ...................................... 8
Assembly Instructions ..........................8-9
Operating Instructions .................... 10-14
Maintenance .......................................... 15
Storage ..................................................16
Trouble Shooting Guide .................. 17-18
Accessories ........................................... 19
Repairs ...................................................19
Warranty ........................................... 20
Français .......................................21-40
Español ........................................41-60
Record All Information and attach sales
receipt here for future reference:
Purchase Date:__________________________
Serial #: ________________________________
Questions? 1-800-888-2468
Learn more about your pressure
washer, get answers to frequently asked
questions, and register on line at www.
excellpressurewasher.com
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A16091
This product may not be equipped with a spark arresting muffl er.
If the product is not equipped and will be used around fl am ma ble
ma teri als, or on land covered with materials such as agricultural crops, forest, brush,
grass, or other similar items, then an ap proved 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 sec tions 4442 and 4443 of the California Public Re sourc es
Code, unless the engine is equipped with a spark arrester, as defi ned in section 4442,
and maintained in ef fec tive work ing order. Spark arresters are also required on some
U.S. For est Service land and may also be legally required under other statutes and
or di nanc es.
This product contains chemicals, including lead, known to the State
of California to cause cancer, and birth defects or other reproductive
harm. Wash hands after handling.
CONSUMER SAFETY INFORMATION
SAFETY GUIDELINES - DEFINITIONS
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.
Indicates a potentially
hazardous situation
which, if not avoided, may result in minor
or moderate injury.
Used without the safety
alert symbol indicates a
potentially hazardous situation which, if not
avoided, may result in property damage.
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.
IMPORTANT SAFETY INSTRUCTIONS
Do not operate this unit until you have read and understand this
Operators Manual and the Engine Owners Manual for Safety,
Operation, and Maintenance Instructions.
READ AND SAVE THESE INSTRUCTIONS
RISK OF EXPLOSION OR FIRE
WHAT CAN HAPPEN HOW TO PREVENT IT
• Spilled gas o line and it's vapors
can be come ignited from cigarette
sparks, electrical arcing, exhaust
gases and hot engine components
such as the muffler.
• Shut off en gine and allow it to cool
before adding fuel to the tank.
• Use care in fill ing tank to avoid
spilling fuel. Move pressure washer
away from fueling area before
starting en gine.
• Heat will ex pand fuel in the tank
which could result in spillage and
pos si ble fire explosion.
• Fill tank to 1/2" (12.7 mm) below
bottom of fi ller neck to provide space
for fuel expansion.
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A16091
RISK OF EXPLOSION OR FIRE (CONTINUED)
WHAT CAN HAPPEN HOW TO PREVENT IT
• Operating the pressure washer in an
ex plo sive en viron ment could re sult
in a fire.
• Operate and fuel equipment in
well-ven ti lat ed areas free from
ob struc tions. Equip areas with fire
extinguisher suit able for gas o line
fires.
• Materials placed against or near the
pressure washer can in ter fere with
its proper ventilation fea tures causing overheating and possible
ig ni tion of the materials.
• Never op er ate pressure wash er in an
area containing dry brush or weeds.
• Muffler exhaust heat can damage
paint ed sur fac es, melt any material
sen si tive to heat (such as siding,
plas tic, rub ber, vinyl or the pressure
hose, itself), and dam age live plants.
• Always keep pressure washer a min imum of 4' (1.2m) away from sur fac es
(such as houses, au to mo biles or live
plants) that could be
damaged from muffler exhaust heat.
• Improperly stored fuel could lead to
acciden tal ignition. Fuel im prop er ly
secured could get into the hands
of children or oth er un qual i fied
persons.
• Store fuel in an OSHA-ap proved
contain er, in a se cure location away
from work area.
• Use of acids, toxic or cor ro sive
chemicals, poisons, in sec ti cides, or
any kind of flam ma ble solvent with
this product could re sult in se ri ous
injury or death.
• Do not spray flammable liquids.
RISK TO BREATHING (ASPHYXIATION)
WHAT CAN HAPPEN HOW TO PREVENT IT
• Breathing ex haust fumes will cause
se ri ous injury or death! En gine
exhaust con tains carbon mon ox ide,
an odorless and deadly gas.
• Operate pressure washer in a wellventilated area. Avoid en closed
areas such as ga rag es, base ments,
etc.
• Never op er ate unit in a lo ca tion
occupied by humans or animals.
• Some clean ing fluids con tain substanc es which could cause injury to
skin, eyes or lungs.
• Use only clean ing fluids spe cif i cal ly
rec om mend ed for high-pressure
washers. Fol low manufacturers
recommendations. Do not use
chlorine bleach or any other
corrosive compound.
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A16091
RISK OF FLUID INJECTION AND LACERATION
WHAT CAN HAPPEN HOW TO PREVENT IT
• Your pressure 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!
• Inspect the high-pressure hose
regularly. Replace the hose
immediately if it is damaged,
worn, has melted from contacting
the engine, or shows any signs
of cracks, bubbles, pinholes, or
other leakage. Never grasp a highpressure hose that is leaking or
damaged.
• Never touch, grasp or attempt to
cover a pinhole or similar water
leak on the high-pressure hose.
The stream of water IS under high
pressure and WILL penetrate skin.
• Never place hands in front of noz zle.
• Direct spray away from self and
others.
• Make sure hose and fit tings are
tightened and in good condition.
Never hold onto the hose or fittings
during op er a tion.
• Do not allow hose to contact muf fler.
• Never attach or remove wand
or hose fittings while sys tem is
pressurized.
• Injuries can result if system pressure
is not reduced before attempting
maintenance or disassembly.
• To relieve sys tem pres sure, shut off
engine, turn off water sup ply and
pull gun trigger until water stops
flowing.
• Use only hoses and accessories
rated for pressure higher than your
pressure washer's PSI.
RISK OF INJURY FROM SPRAY
WHAT CAN HAPPEN HOW TO PREVENT IT
• High-velocity fluid spray can cause
objects to break, propelling particles
at high speed.
• Light or unsecured objects can
become hazardous projectiles.
• Always wear ANSI-approved Z87.1
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.
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RISK OF UNSAFE OPERATION
WHAT CAN HAPPEN HOW TO PREVENT IT
• Unsafe op er a tion of your pressure
wash er could lead to se ri ous in ju ry
or death to you or others.
• Do not use chlorine bleach or any
other corrosive compound.
• Be come fa mil iar with the op er a tion
and con trols 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 fea tures of
this prod uct.
• Do not op er ate machine with
missing, broken or un au tho rized
parts.
• Never leave wand unattended while
unit is running.
• If proper starting procedure is not
followed, engine can kickback
causing serious hand and arm injury.
• 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.
• The spray gun/wand is a powerful
clean ing tool that could look like a
toy to a child.
• Keep chil dren away from the
pressure washer at all times.
• Reactive force of spray will cause
gun/wand to kickback, and could
cause the op er a tor to slip or fall
or misdirect the spray. Im prop er
control of gun/wand can re sult in
in ju ries to self and others.
• Do not over reach 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.
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RISK OF INJURY OR PROP ER TY DAMAGE WHEN
TRANSPORTING OR STORING
WHAT CAN HAPPEN HOW TO PREVENT IT
• Fuel or oil can leak or spill and could
result in fire or breathing hazard. Se rious in ju ry or death can re sult. Fuel or
oil leaks will dam age carpet, paint or
oth er surfaces in ve hi cles or trailers.
• 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 pres sure wash er
is not equipped with a fuel shut-off
valve, drain the fuel from tank before
trans port ing. Only trans port fuel in an
OSHA-approved container. Al ways
place pressure washer on a protective
mat when transporting to protect
against dam age to vehicle from
leaks. Re move pres sure washer from
vehicle immediately upon arrival at
your destination.
RISK OF BURSTING
WHAT CAN HAPPEN HOW TO PREVENT IT
• Over inflation of tires could result in
serious injury and property damage.
• Use a tire pressure gauge to check
the tires pressure before each use
and while inflating tires; see the tire
sidewall for the correct tire pressure.
NOTE: Air tanks, compressors and
similar equipment used to inflate tires
can fill small tires similar to these very
rapidly. Adjust pressure regulator on
air supply to no more than the rating
of the tire pressure. Add air in small
increments and frequently use the tire
gauge to prevent over inflation.
RISK OF HOT SURFACES
WHAT CAN HAPPEN HOW TO PREVENT IT
• Con tact with hot sur fac es, such as
engines exhaust com po nents, could
result in se ri ous burn.
• During op er a tion, touch only the
control surfaces of the pres sure
washer. Keep children away from
the pres sure washer at all times.
They may not be able to recognize
the haz ards of this product.
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A16091
RISK OF CHEMICAL BURN
WHAT CAN HAPPEN HOW TO PREVENT IT
• Use of acids, toxic or cor ro sive
chemicals, poisons, in sec ti cides, or
any kind of flam ma ble solvent with
this product could re sult in se ri ous
injury or death.
• Do not use ac ids, gasoline, kero sene, or any other flammable
materials in this product. Use only
household de ter gents, cleaners and
degreasers recommended for use in
pres sure washers.
• Wear pro tec tive clothing to protect
eyes and skin from con tact with
sprayed materials.
RISK OF
ELEC TRI CAL SHOCK
WHAT CAN HAPPEN HOW TO PREVENT IT
• Spray di rect ed at elec tri cal outlets or
switch es, or ob jects con nect ed to
an elec tri cal circuit, could re sult in a
fatal electrical shock.
• Unplug any elec tri cal ly op er at ed
product before attempting to clean
it. Direct spray away from electric
out lets and switches.
RISK OF
INJURY FROM LIFTING
WHAT CAN HAPPEN HOW TO PREVENT IT
• Serious injury can result from
attempting to lift too heavy an
object.
• The pressure washer is too heavy
to be lifted by one person. Obtain
assistance from others before lifting.
READ AND SAVE THESE INSTRUCTIONS
SPECIFICATIONS
Model DVH3000
PSI Max* 3000 (20684 kPa)
Operating PSI 2700 (18616 kPa)
GPM Max* 2.25
Operating GPM 2.0
* Water flow and maximum pressure ratings determined in accordance with PWMA
standard PW101.
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A16091
1. Locate and remove all loose
parts from the carton.
2. Cut four corners of the carton from
top to bottom and lay the panels
flat.
3. Place handle onto frame, depress
the snap buttons, and slide the
handle assembly onto the frame
until snap buttons snap into place.
Risk of personal
injury. Avoid
placing hands between handle and
frame when assembling to prevent
pinching.
4. Connect wand to gun. Tighten
securely.
5. Attach high
pressure hose
to gun. Tighten
se cure ly.
6. Remove five
colored quick
connect nozzles from plastic
bag and insert them into correct
grommet on the nozzle holder.
ASSEMBLY INSTRUCTIONS
CARTON CONTENTS
Engine Frame and
Wheel Assembly
High Pressure
Hose
Spray Gun
Quick Connect Spray Wand
Handle
Chemical
Hose
Bagged Parts
Nozzle
Cleaning
Tool
Engine
Manual
Quick
Connect
Nozzles
Nozzle
Holder
Operation
Manual
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A16091
NOTE: Nozzles are color coded to
match colored nozzles on panel.
7. Place the nozzle holder onto
the panel (located on the handle
assembly) and push each nozzle
holder into place.
NOTE: The high pressure pump was
filled with oil at the factory. The oil in
the high pressure pump was designed
to last the life of the pump. If there is
a problem with the pump contact an
Authorized Service Center.
The shipping plug
must be removed
and replaced with the dipstick/oil
plug before operating pressure
washer.
8. Using an 11/16"
wrench, remove
shipping plug
from pump
by turning it
counterclockwise. Discard plug.
9. Remove dipstick/oil plug from
plastic bag and install into pump,
tighten securely.
Risk of bursting.
Use a tire pressure
gauge to check the tires pressure
before each use and while inflating
tires; see the tire sidewall for the
correct tire pressure.
NOTE: Air tanks, compressors and similar
equipment used to inflate tires can fill
small tires similar to these very rapidly.
Adjust pressure regulator on air supply
to no more than the rating of the tire
pressure. Add air in small increments
and frequently use the tire gauge to
prevent over inflation.
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OPERATING INSTRUCTIONS
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: Carries the
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.
Compare the illustrations with your unit to familiarize yourself with the location of
various controls and adjustments. Save this manual for future reference.
High
Pressure
Hose
Spray
Gun
High Pressure Pump
Engine
Quick-Connect Spray Wand: Allows
the user to quickly change out highpressure nozzles. Refer to Spray Wand
Nozzles.
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.
Quick-Connect
Spray Wand
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A16091
BASIC ELEMENTS OF AN
ENGINE
Refer to the engine manual for location
and operation of engine controls.
Choke Control: Opens and closes
carburetor choke valve.
Starter Grip: Pulling starter grip
operates recoil starter to crank engine.
Engine Switch: Enables and disables
ignition system.
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.
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 (white) this nozzle delivers a less
powerful stream of water and a
wider spray pattern.
3. Adjust the
pres sure
reg u la tor
on the
pump.
Turn the
pressure
reg u la tor
knob counter clock wise to lower pressure.
Re fer to the illustrations to iden ti fy
your pres sure reg u la tor. Once you
have fin ished using your pres sure
wash er, re turn the pres sure reg u lator to its original position by turning
it clock wise.
DO NOT try to turn
pressure regulator
knob past the built-in stop or
damage to pump will result.
SPRAY WAND NOZZLES
The nozzles for the spray wand are
stored in the nozzle holder on the panel
assembly. Colors on the panel identify
nozzle location and spray pattern.
Refer to the following chart to choose
the correct nozzle for the job to be
performed.
CHANGING NOZZLES ON SPRAY
WAND
Risk of fluid
injection. Do not
direct discharge stream toward
persons, unprotected skin, eyes or
any pets or animals. Serious injury will
occur.
Thermal
Relief
Valve
Pressure
Regulator
Knob
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A16091
*
The high pressure spray from your pressure washer is
capable of causing damage to surfaces such as wood,
glass, automobile paint, auto striping and trim, and delicate objects such as
fl owers 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.
Nozzle Color Red Yellow Green White Black
Spray
Pattern
0º
15º
25º 40º low pressure
Uses
powerful
pinpoint for
very intense
cleaning
intense
cleaning of
small areas
intense
cleaning of
larger areas
covers wide
areas of
cleaning
applies
cleaning
solutions
Surfaces *
Metal or
concrete
DO NOT use
on wood
metal,
concrete, or
wood
metal,
concrete, or
wood
metal,
concrete,
wood, or vinyl
metal,
concrete,
wood, or
vinyl
HOW TO APPLY CHEMICALS/
CLEANING SOLVENTS
Applying chemicals or cleaning
solvents is a low pressure operation.
NOTE: Use only soaps and chemicals
designed for pressure washer use. Do
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, place
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.
Flying objects
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.
Flying object could
cause risk of serious
injury. Ensure nozzle is completely
inserted in quick-connect socket
and quick-connect snap ring is fully
engaged (forward) before squeezing
gun trigger.
Barb
Fitting
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A16091
3. Connect the water hose to the
water source. Turn the water
source on to remove all air from
the hose. When a steady stream
of water is present, turn the water
source off.
4. Verify the filter
screen is in
water inlet of
pump. NOTE:
Cone side faces
out.
5. Connect water source to pump
inlet. NOTE: Water source must
provide a minimum of 5 gallons
(18.9 liters) per minute at 20 PSI
(137.9 kPa).
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. See
Engine Owners Manual for correct
procedure.
To reduce the risk of injury, read the pressure washer
instruction manual and the engine instruction manual
before starting pressure washer.
Risk of fluid injection and laceration. When using the high-
pressure setting, DO NOT allow the high-pressure spray to
come in contact with unprotected skin, eyes, or with any pets or animals.
Serious injury will 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!
Risk of Fire, Asphyxiation and Burn. NEVER fill fuel tank
when engine is running or hot. Do not smoke when filling
fuel tank.
• 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 in doors or in en closed, poorly ven ti lat ed areas. En gine exhaust
con tains carbon mon ox ide, 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.
Risk of property damage. NEVER pull water supply hose
to move pres sure washer. This could damage hose and/or
pump inlet.
• 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 1-800-888-2468 to speak to a
service representative for further instructions.
Filter Screen
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A16091
12. Release trigger to stop water
flow.
Risk of injury from
spray. Always
engage the trigger lock when gun
is not in use. Failure to do so could
cause accidental spraying.
13. Adjust nozzle spray for the task
being performed. See How To Use
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.
Risk of property
damage. Failure to
do so could cause damage to the
pump.
2. Turn engine off. See Engine
Owner's Manual.
Risk of property
damage. NEVER
turn the water off with the engine
running.
3. Turn water source off.
4. Pull trigger on spray gun to
relieve any water pressure in hose
or spray gun.
5. See Storage section in this
manual for proper storage
procedures.
To reduce the
possibility of
contamination always protect against
backflow when connected to a potable
water system.
6. Connect high pressure hose to
pump outlet.
7. If applying a chemical or
cleaning solution, see How
To Apply Chemicals/Cleaning
Solvents instructions in this
section.
8. Turn water source on.
Risk of property
damage. Failure to
do so could cause damage to the
pump.
9. Remove all air from the pump
and high pressure hose by
depressing trigger until a steady
stream of water is present.
10. Start engine. See Engine Owners
Manual for correct procedure.
Risk of unsafe
operation. 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.
11. Depress trigger on gun to start
water flow.
Risk of unsafe
operation. Stand on
a stable surface and grip gun/spray
wand fi rmly with both hands. Expect
the gun to kick when triggered.
Trigger Lock Engaged
Water
Source
High Pressure Hose
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A16091
MAINTENANCE
Risk of burn hazard.
When performing
maintenance, you may be exposed
to hot surfaces, water pressure or
moving parts that can cause serious
injury or death.
Risk of fire hazard.
Always disconnect,
spark plug wire, let the engine
cool and release all water pressure
before performing any maintenance
or repair. 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 high-temperatures
or dusty conditions, more fre quent
maintenance checks will be required.
ENGINE
Consult the Engine Owners Manual for
the man u fac tur er's recommendations
for any and all maintenance. NOTE:
The engine drain plug is located at the
rear of the unit.
PUMP
The oil in the high pressure pump was
designed to last the life of the pump.
If there is a problem with the pump
contact an Authorized Service Center.
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 into water inlet of
pump. NOTE: Cone side faces
out.
NOTE: Do not operate pressure washer
without filter properly installed.
Filter Screen
16- ENG
A16091
ENGINE
Consult the Engine Owners Manual for
the manufacturer's recommendations
for storage.
PUMP
The manufacturer recommends using
a pump protector/winterizer, such as
DP80, 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 or windshield washer
fluid needs to be run through the
pump as outlined in the steps below.
NOTE: Using a pump protector/
winterizer, RV antifreeze or windshield
washer fluid is to provide proper
lubrication to the internal seals of the
pump regardless of temperature or
environment.
1. Obtain a funnel, 6 oz. of RV
antifreeze or windshield washer
fluid, and 16–36" of garden hose
with a male hose connector
attached to one end.
Risk of property
damage. Use only
RV antifreeze. Any other an ti freeze 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 or windshield
washer fluid to hose as shown.
5. Pull engine starter rope slowly
several times until antifreeze/
washer fluid comes out of highpressure hose con nec tion of
pump.
6. Remove garden hose from water
inlet of pump.
7. Reconnect spark plug wire.
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 dam age.
4. If space is needed, remove
handles and replace as shown.
STORAGE
17 - ENG
A16091
Air in hose.
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- con nect water
source to pump inlet and turn on
wa ter source. Squeeze trigger to
re move re main ing air
TROUBLE SHOOTING GUIDE
PROBLEM
Engine will
not start (see
Engine Manual
for further
engine
troubleshooting)
CAUSE
CORRECTION
No fuel.
Add Fuel.
Pressure builds up after two pulls
on the recoil starter or after initial
use.
Squeeze gun trigger to relieve
pres sure.
Spark plug wire not attached. Attach spark plug wire.
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.
Move choke to the "No Choke"
po si tion.
Choke lever in the "No Choke"
position.
Move choke to the "Choke"
po si tion.
Engine ON/OFF switch in OFF
po si tion.
Place engine ON/OFF switch in
ON position.
Fuel valve closed
Move the fuel valve lever to the
“Open” position.
No or low
pressure
(initial use)
Spray wand not in high pressure. See How to Use Spray Wand
instructions in the Operation
Section.
Low water supply.
Water supply must be at least
5 GPM @ 20 PSI (137.9 kPa).
Leak at high pressure hose fitting.
Repair leak. Apply sealant tape
if necessary.
Nozzle obstructed.
See Nozzle Cleaning instructions
in the Maintenance section.
Water filter screen clogged. Remove and clean filter.
High pressure hose is too long.
Use high pressure hose under
100 feet.
Choke lever in the “Choke” position.
Move choke to the “No Choke”
po si tion.
AWSC = Authorized Warranty Service Center
18- ENG
A16091
Water
leaking at
pump
Water leaking
at gun/
spray wand
connection
No or low
pressure
(after period
of normal
use)
PROBLEM
CAUSE
CORRECTION
Spray wand not in low pressure.
See How to Use Spray Wand
paragraph in the Operation
Section.
Chemical screen not in cleaning
solution.
Clean filter.
Chemical too thick.
Dilute chemical. Chemical should
be the same consistency as water.
Pressure hose is too long
Lengthen water supply hose
instead of high pressure hose.
Chemical build up in chemical
injector.
Have parts cleaned or replaced
by AWSC.
Worn seal or packing
Have replaced by AWSC.
Worn or obstructed valves.
Have replaced by AWSC.
Worn unloader piston.
Have replaced by AWSC.
Check and replace.
Loose hose connection.
Loose connections.
Tighten.
Piston packings worn.
Have replaced by AWSC.
Worn or broken o-rings.
Have replaced by AWSC.
Pump head or tubes damaged
from freezing.
Have replaced by AWSC.
Will not draw
chemicals
Make sure end of chemical hose
is fully submerged into cleaning
solution.
Chemical filter clogged.
Worn or broken o-ring.
Tighten.
Nozzle obstructed.
See Nozzle Cleaning paragraph in
the Maintenance section for the
correct procedure.
Pump
Pulsates
AWSC = Authorized Warranty Service Center
Oil leaking at
pump
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.
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 prob lem
per sists, replace plug.
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