Devilbiss EXH2425 Owner’s Manual
Pressure Washers
OPERATOR'S MANUAL
SAFETY "ASSEMBLY "OPERATION "MAINTENANCE "STORAGE"
TROUBLESHOOTING "QUICK FACTS
Read Operator's Manual. Do not operate equipment until you have read this Operator's Manual
for Safety, Assembly, _, and Maintenance instructions.
D22322 Rev. 0 11129/00
Register your product on line at
www.devap.com
SAFETY GUIDELINES - DEFINITIONS ........... 2
IMPORTANT SAFETY INSTRUCTIONS ........ 3-4
FREQUENTLY ASKED QUESTIONS ............ 5
OWNER'S RESPONSIBILITIES ................ 6
PRESSURE WASHER SERVICE POLICY ......... 6
BOX CONTENTS .......................... 7
ASSEMBLY .............................. 8
OPERATION ........................... 9-13
Basic Elements of a Pressure Washer ........ 9
Basic Elements of Engine ................. 9
Pressure Washer Terminology .............. 9
Pressure Washer Operating Features ...... 9-10
Bypass Mode ...................... 9
Chemical Flow Adjustment ............. 9
Thermal Relief Valve ................. 10
Pressure Adjustment ................ 10
How to Use Wand ..................... 10
Multi- Reg ........................ 10
Quick Connect .................... 11
How to Siphon Chemicals/Cleaning Solvents..12
Starting ............................. 12
Shutting Down Your Pressure Washer ....... 13
MAINTENANCE ....................... 13-15
Engine .............................. 13
Pump .............................. 13
Pump Maintenance Chart ................ 14
Nozzle Cleaning ....................... 14
Water Inlet Screen Cleaning .............. 15
To Change Oil in Pump ................. 15
DAPC Axial Cam ................... 15
Annovi Reverberi ................... 15
CAT ............................ 15
STORAGE .............................. 16
TROUBLESHOOTING GUIDE ............. 17-18
WARRANTY STATEMENT .................. 19
QUICK FACTS .................... Back Cover
Read Operator's Manual. Do not operate equipment until you have read Operator's Manual for
_, Assembly, _, and Maintenance instructions.
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 agri-
cultural 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 attester, 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 reproduc-
tive harm.
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 sections.
indicates an imminently hazardous
situation which, if not avoided, will
result in death or serious injury.
indicates a potentially hazardous sit-
uation which, if not avoided, could
result in death or serious iniur¥.
_ ndicates a potentially hazardous situ-
in minor or moderate iniury.
_used without the safety alert symbol
__ indicates a potentially hazardous situ-
ation which, if not avoided, _ result in .p_gperty damaq_.
ation which, if not avoided, _ result
2 -- ENG
10/2/97
TIONS BEFORE USING.
HAZARD WHAT CAN HAPPEN HOW TO PREVENT iT
RiSK OF EXPLOSION
RiSK TO BREATHING
RiSK OF UNSAFE
OPERATION
iMPROPER OPERATION OR MAINTENANCE OF THIS PRODUCT COULD RESULT iN SERIOUS iNJURY
AND PROPERTY DAMAGE. READ AND UNDERSTAND ALL WARNINGS AND OPERATING INSTRUC-
o
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.
• Materials placed against or near the pressure
washer can interfere with its proper ventilation
features causing overheating and possible igni-
tion of the materials.
o Muffler exhaust heat can damage painted sur-
faces, 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 unquali-
fied persons.
,, Use of acids, toxic or corrosive chemicals, poi-
sons, insecticides, or any kind of flammable
solvent with this product could result in serious
injury or death.
o Breathing exhaust fumes will cause serious
injury or death.
o Some cleaning fluids contain substances which
could cause injury to skin, eyes, or lungs.
,, Unsafe operation of your pressure washer ,,
could lead to serious injury or death to you or
others. ,,
• If proper starting procedure is net fol-
lowed, engine can kickback causing seri-
ous hand and arm injury.
,, The spray gun/wand is a powerful cleaning
tool that could look like a toy to a child.
o Reactive force of spray will cause gun/wand
to move, 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.
o Shut off engine and allow it to cool before
adding fuel to the tank.
o Use care in filling tank to avoid spilling fuel.
Move pressure washer away from fueling
area before starting engine.
• Keep maximum fuel level 1/_,,below top of
tank to allow for expansion.
• Operate and fuel equipment in well ventilated
areas free from obstructions. Equip areas
with fire extinguishers suitable for gasoline
fires.
o 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 hous-
es, 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
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 recom-
mended for high pressure washers. Follow
manufacturers recommendations.Do not use
chlorine bleach or any other corrosive com-
pound
Become familiar with the operation and con-
trols of the pressure washer.
Keep operating area clear of all persons,
pets, and obstacles.
o 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 prod-
uct.
,, Do not operate machine with missing, bro-
ken, or unauthorized parts.
o 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 wash-
er at all times.
• Do not overreach or stand on an unstable
support. Grip gun/wand firmly with both
hands. Expect the gun to kick when trig-
gered.
3 -- ENG
HAZARD WHAT CAN HAPPEN HOW TO PREVENT iT
RiSK OF
ELECTRICAL
SHOCK
• Spray directed at electrical outlets or
switches, or objects connected to an elec-
trical circuit, could result in a fatal electri-
cal shock.
Unplug any electrically operated product
before attempting to clean it. Direct spray
away from electric outlets and switches.
RiSK TO FLUID
iNJECTiON
RiSK OF CHEMICAL BURN
RiSK OF HOT SURFACES
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 in-
jection injuries. DO NOT TREAT FLUID IN-
JECTION AS A SIMPLE CUT! See a phy-
sician immediately!
Relieve system pressure before attempting
maintenance or disassembly of equip-
ment.
Use of acids, toxic or corrosive chemicals,
poisons, insecticides, or any kind of flam-
mable solvent with this product could re-
sult in serious injury or death.
Contact with hot surfaces, such as engines
exhaust components, could result in seri-
ous burn.
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.
Use only hose and high pressure accessories
rated for pressure higher than your pressure
washer's p.s.i.
To relieve system pressure, shut off engine,
turn off water supply, and pull gun trigger until
water stops flowing.
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.
Do not use chlorine bleach or any other cor-
rosive compound.
During operation, touch only the control sur-
faces of the pressure washer. Keep children
away from the pressure washer at all times.
They may not be able to recognize the haz-
ards of this product.
Fuel or oil can leak or spill and could
result in fire or breathing hazard, serious
RiSK OF iNJURY AND
PROPERTY DAMAGE
WHEN TRANSPORTING OR
STORING
_The powerful 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 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. Avoid the use of the concentrated spray stream except for very strong surfaces like concrete and
steel.
Operating without flow of water will result in equipment damage. Operating the pressure washer with water supply
shutoff will void your warranty. You should never run this pressure washer for more than 2 minutes without pulling the
trigger to allow cool water to enter the pump and the heated (recirculated) water to exit.
injury or death can result. Fuel or oil leaks
will damage carpet, paint or other sur-
faces in vehicles or trailers.
4 -- ENG
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 washer is not equipped with a fuel shut-
off valve, drain the fuel from tank before trans-
porting. 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.
What kind of oil do i use?
• Engine: Refer to Engine manual for oil recommendations.
Pump: See page 12 and 13.
My Pressure Washer won't start..(See Engine manual for starting instructions)
Has gasoline been added to the engine?
Is engine on/off switch in "on" position? (If applicable)
Has engine been primed or choked?
Adequate amount of oil in engine? (Some models are equipped with a "Low Oil Shut Down" switch)
Is fuel valve in the "Open" position. (if applicable)
Pull trigger on spray gun to release pressure.
How do I apply chemicals?
Wand must be in the low pressure setting. See page 10 and 11.
Chemical hose must be attached to pump and fully submerged in chemical/soap-See page 11.
Chemical adjustment knob (if equipped) must be in open position. See page 9.
How do I adjust the pressure?
(only on models equipped with an adjustable pressure regulator)
The pressure unloader is factory pre-set at the maximum pressure and should not be increased. The pressure
can be lowered by following the instructions on page 10. Do not attempt to increase the engine speed to
achieve a higher pressure. Excessive pressure will damage the pump.
I don't have enough pressure...
Do you have an adequate water supply (5 gallons per minute at 20 p.s.i.)?
All hoses free of kinks and leaks?
Is wand in high pressure setting? See page 10 and 11.
Is spray nozzle blocked or partially obstructed? If so, clear and replace. See page 14.
Do not use a high pressure hose longer than 100 feet?
Has unit ran for a long period of time without pulling the spray gun trigger? If so see an Authorized Warranty
Service Center
What type of chemicals/soaps can I use?
Use only chemicals/soap designed for use in pressure washers.
Do not use chlorine bleach or any other corrosive compound; this will cause damage to the pump.
Who can I call if I have questions or any problems?
Call us at 1-800-888-2468, Extension 2, Monday through Saturday, 8:00 a.m. to 6:00 p.m., C.S.T.
How do I drain the oil?
• Engine: Refer to the Engine manual for this information.
Pump: See page 13.
Where can ! purchase parts and/or accessories?
Service parts can be obtained through our many Authorized Warranty Service Centers. For the location of the
nearest Authorized Warranty Service Center call 1-800-888-2468, Ext. 2, 24 hours a day, 7 days a week or visit
our web site @devap.com.
Accessories can be purchased at an Authorized Warranty Service Center or at one of the many local retailers.
5 -- ENG
DO NOT RETURN THIS PRODUCT TO THE
RETAILER! Call 1=800=888=2468, Ext. 2.
o
Read and understand all safety warnings.
o
Read this Owner's Manual.
o
Do not operate this unit until you have read this
Owners Manual for Safety, Operation, and
• Check for visible shipping damage. Shipping
damage will cause problems in operation of this
unit.
If you experience any problems and need assis-
tance, please call us at our toll free number 1-
800-888-2468, Ext 2, 8:00 a.m. to 8:00 p.m.
C.S.T.
Maintenance Instructions.
If you need warranty repair or service part pur-
• Read the Engine Owner's Manual supplied with
this unit.
Do not operate this unit until you have read the
chase, you can locate an Authorized Warranty
Service Center nearest you by calling us at 1-800-
888-2468, Ext 2,1, 24 hours a day, 7 days a week.
Engine Owners Manual for Safety, Operation, and
Maintenance Instructions.
® Congratulations! You have purchased a high quality product from America's leading manufacturer of pressure
washers. This pressure washer, when properly used and maintained, will provide trouble free service. Please
read and follow these instructions for proper use and maintenance.
• All sales of pressure washers are final. Do not return this product to the retailer.
• If you experience any problems and need assistance, please call us at our toll free number 1=800=888=2468,
Ext 2. Monday through Saturday, 8:00 a.m. To 6:00 p.m.C.S.T.
• If repair or service part purchase is required, our many Authorized Warranty Service Centers are conveniently
located and equipped to handle all in-warranty and out-of-warranty service.
• For the location of the nearest Authorized Warranty Service Center call 1-800-888-2468, Ext. 2, 24 hours a day,
7 days a week or visit our web site @devap.com.
® All pressure washers carry a manufacturer's one year warranty from date of purchase for consumer use and a
90 day warranty for commercial use.
• Retain sales receipt as proof of purchase for warranty service.
6 -- ENG
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