Devilbiss EXH2425 User Manual PRESSURE WASHER Manuals And Guides L0607441

DEVILBISS Power Washer, Gas Manual L0607441 DEVILBISS Power Washer, Gas Owner's Manual, DEVILBISS Power Washer, Gas installation guides

User Manual: Devilbiss EXH2425 EXH2425 DEVILBISS PRESSURE WASHER - Manuals and Guides View the owners manual for your DEVILBISS PRESSURE WASHER #EXH2425. Home:Lawn & Garden Parts:Devilbiss Parts:Devilbiss PRESSURE WASHER Manual

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Pressure

OPERATOR'S

Washers

MANUAL

SAFETY "ASSEMBLY "OPERATION "MAINTENANCE
TROUBLESHOOTING "QUICK FACTS

"STORAGE"

on line at

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

SAFETY GUIDELINES - DEFINITIONS ...........
IMPORTANT SAFETY INSTRUCTIONS

........

Quick Connect

3-4

....................

How to Siphon Chemicals/Cleaning Solvents..12

FREQUENTLY ASKED QUESTIONS ............

Starting .............................

OWNER'S RESPONSIBILITIES ................

Shutting Down Your Pressure Washer .......

PRESSURE WASHER SERVICE POLICY .........

BOX CONTENTS ..........................

Engine ..............................

ASSEMBLY ..............................

Pump

OPERATION ...........................

MAINTENANCE

9-13

.......................

13-15

..............................

Pump Maintenance Chart ................

Basic Elements of a Pressure Washer ........

Nozzle Cleaning .......................

Basic Elements of Engine .................

Water Inlet Screen Cleaning ..............

Pressure Washer Terminology ..............

To Change Oil in Pump

Pressure Washer Operating Features ......
Bypass Mode

......................

Chemical Flow Adjustment .............

.................

9-10

DAPC Axial Cam ...................

Annovi Reverberi ...................

CAT

............................

Thermal Relief Valve .................

STORAGE ..............................

Pressure Adjustment

TROUBLESHOOTING GUIDE

WARRANTY STATEMENT

QUICK FACTS ....................

................

How to Use Wand .....................
Multi- Reg ........................

16
.............

17-18

..................

19
Back Cover

Read Operator's Manual. Do not operate equipment until you have read Operator's
_,
Assembly, _,
and Maintenance instructions.

Manual for

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 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 reproductive 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 situation which, if not avoided, could
result in death or serious iniur¥.

_used
without
the safetyhazardous
alert symbol
__
indicates
a potentially
situation which, if not avoided, _
result in .p_gperty damaq_.

ndicates
a potentially
hazardous
situation
which,
if not avoided,
_
result
in minor or moderate iniury.

10/2/97

2 -- ENG

iMPROPER OPERATION OR MAINTENANCE OF THIS PRODUCT COULD RESULT iN SERIOUS iNJURY
AND PROPERTY DAMAGE. READ AND UNDERSTAND ALL WARNINGS AND OPERATING INSTRUCTIONS

BEFORE

USING.

HAZARD

WHAT CAN HAPPEN
o

RiSK OF EXPLOSION

Spilled gasoline and it's vapors can become
ignited from cigarette sparks, electrical arcing,
exhaust gases, and hot engine components
such as the muffler.

HOW TO PREVENT iT
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.

• Heat will expand fuel in the tank which could
result in spillage and possible fire explosion.

• Keep maximum fuel level 1/_,,below top of
tank to allow for expansion.

,, Operating the pressure washer in an explosive
environment could result in a fire.

• Operate and fuel equipment in well ventilated
areas free from obstructions.
Equip areas
with fire extinguishers suitable for gasoline
fires.

• Materials placed against or near the pressure
washer can interfere with its proper ventilation
features causing overheating and possible ignition of the materials.

o Never operate pressure washer in an area
containing dry brush or weeds.

o Muffler exhaust heat can damage painted surfaces, melt any material sensitive to heat (such
as siding, plastic, rubber, or vinyl), and damage
live plants.

• 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.

,, Improperly stored fuel could lead to accidental
ignition. Fuel improperly secured could
get into the hands of children or other unqualified persons.

• Store fuel in an OSHA approved container, in
a secure location away from work area.

Do not spray flammable

liquids

,, 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.
o Breathing exhaust fumes will cause serious
injury or death.
RiSK

TO BREATHING

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.

o Some cleaning fluids contain substances which
could cause injury to skin, eyes, or lungs.

RiSK OF UNSAFE

,, Unsafe operation of your pressure washer
could lead to serious injury or death to you or
others.

OPERATION

Use only cleaning fluids specifically recommended for high pressure washers. Follow
manufacturers recommendations.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.
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 product.
,, Do not operate machine with missing, broken, or unauthorized parts.
o Never leave wand unattended while unit is
running.

• If proper starting procedure is net 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.
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.
3 -- ENG

• 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. Grip gun/wand firmly with both
hands. Expect the gun to kick when triggered.

HAZARD

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

RiSK TO FLUID
iNJECTiON

RiSK OF CHEMICAL

BURN

RiSK OF HOT SURFACES

RiSK OF iNJURY AND
PROPERTY DAMAGE
WHEN TRANSPORTING
OR
STORING

HOW TO PREVENT iT
Unplug any electrically operated product
before attempting to clean it. Direct spray
away from electric outlets and switches.

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 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.

Relieve system pressure before attempting
maintenance or disassembly of equipment.

To relieve system pressure, shut off engine,
turn off water supply, and pull gun trigger until
water stops flowing.

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.

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 corrosive compound.

Contact with hot surfaces, such as engines
exhaust components, could result in serious burn.

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.

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.

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 shutoff 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.

_The

powerful spray from your pressure washer is capable
wood, glass, automobile paint, auto striping and trim, and
shrubs. Before spraying, check the item to be cleaned to assure yourself that
the force of the spray. Avoid the use of the concentrated
spray stream except
steel.

of causing damage to surfaces such as
delicate objects such as flowers and
it is strong enough to resist damage from
for very strong surfaces like concrete and

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.

4 -- ENG

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
(only on models

the pressure?
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?
Service Center

What type of chemicals/soaps
Use only chemicals/soap

If so see an Authorized Warranty

can I use?

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
Call us at 1-800-888-2468,

How do I drain
•

or any problems?

Extension 2, Monday through Saturday, 8:00 a.m. to 6:00 p.m., C.S.T.

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.

Read this Owner's Manual.

Do not operate this unit until you have read this
Owners Manual for Safety, Operation, and
Maintenance Instructions.

•

Read the Engine Owner's Manual supplied with
this unit.

•

Check for visible shipping damage. Shipping
damage will cause problems in operation of this
unit.
If you experience any problems and need assistance, please call us at our toll free number 1800-888-2468, Ext 2, 8:00 a.m. to 8:00 p.m.
C.S.T.

Do not operate this unit until you have read the
Engine Owners Manual for Safety, Operation, and
Maintenance Instructions.

If you need warranty repair or service part purchase, you can locate an Authorized Warranty
Service Center nearest you by calling us at 1-800888-2468, Ext 2,1, 24 hours a day, 7 days a week.

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,
7 days a week or visit our web site @devap.com.

All pressure washers carry a manufacturer's
90 day warranty for commercial use.

•

Retain sales receipt as proof of purchase for warranty service.

Ext. 2, 24 hours a day,

one year warranty from date of purchase for consumer use and a

6 -- ENG

Handle
Quick Connect
Nozzle - only on units
equipped with the
quick connect lance

Bagged

Engine Frame and Wheel
Assembly

High Pressure Hose

Handle

English/
Spanish
Operator's
Manual

Knobs w/hardware

k____

Chemical

Nozzle Cleaning

Bagged

Hose

Engine Oil

Kit

Parts

.-"

Quick

Connect

Multi-Reg

Spray Gun

Accessories Panel
with hardware
(if equipped)

7 -- ENG

Wand

Connect handle to frame.

TO ASSEMBLE

ACCESSORIES

PANEL

(if equipped)

Remove top screws on handle assembly.

Loosen bottom screws on handle assembly.

Place grooves in accessories panel assembly
onto screws and slide panel assembly into place.

Place screws (removed earlier) into the top holes
and secure accessories panel assembly to handles. Do not overtighten.

Connect wand to gun. Tighten securely.

Attach high pressure hose to gun. NOTE: The
point of attachment for the high pressure hose will
differ depending on the model purchased. Tighten
securely.

Screws

--i _

---._..

Add engine oil (supplied) to engine. Refer
to engine manual supplied by engine manufacturer for procedure. Do not overfill.
Use of a funnel is recommended.
NOTE: There will be a slight amount of oil
in the engine from factory testing.
NOTE: The 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 to perform maintenance on this
pump.

8 -- ENG

Accessories

BASIC ELEMENTS
WASHER

OF A PRESSURE

Bypass Mode: In Bypass Mode, the pump is recirculating water because the trigger of the spray gun is
not pulled.

High Pressure Pump: Increases the pressure of the
water supply.
Engine: Drives the high pressure pump.

Chemical Injection:
Feeds cleaning agents into the
pump to mix with the pressurized water and help in
cleaning.
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.

High Pressure Hose: Carries the pressurized water
from the pump to the gun and wand.
Spray Gun: Connects with wand to control water
flow rate, direction, and pressure.

Any supply pressure or
delivery rate less than
this will not allow the pressure washer to
operate at its full potential and may cause
damage to the pump.

Wand:
Multi-Reg wand: Has a spray nozzle which adjust
from a pencil stream (0°) to a wide angle fan spray
(60°). The spray can be adjusted by twisting the
nozzle clockwise and/or counterclockwise. Also,
the high and low pressure settings can be controlled by moving the nozzle in and out. See
Operation section.

Bypass

Quick Connect: This type of lance is equipped
with a female quick connect coupler on the end.
This allows the user to quickly change out highpressure nozzles for different spray patterns and
change to the soap nozzle for low pressure and
chemical/soap applications. See Operation section.
Chemical Hose: Allows cleaners or cleaning solvents
to be mixed with the pressurized water stream. See
How To Siphon Chemicals/Cleaning Solvents in
Operation section of this manual.

BASIC ELEMENTS

OF ENGINE

Choke Control (if equipped):
choke valve in carburetor.

Opens and closes the

Primer Button (if equipped):
fuel.

Primes carburetor with

Throttle

Control

Lever:

Controls engine speed.

Starter Grip: Pulling starter grip operates recoil
starter to crank engine.
Fuel Valve Lever (if equipped): Opens and closes
connection between fuel tank and carburetor.
Engine Switch (if equipped): 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.

PRESSURE
FEATURES

WASHER

OPERATING

Mode

During normal operation the water supply is turned
on, engine is running, spray gun trigger is depressed,
and the cold water supply circulates inside the pressure washer pump allowing pump to maintain a safe
operating temperature. When you release spray gun
trigger and engine is still running, you are in bypass
mode.
When unit is in bypass mode, water circulating inside
the pump begins to heat up. If unit is left in bypass
mode for more than two (2) minutes, the water temperature will rise to a dangerous level and damage
internal components of the pump.
If pressure washer is operated without an adequate
water supply or operated for more than two (2) minutes without depressing the spray gun trigger, the
pump will overheat and be seriously damaged. Any
damage to pump due to these causes will not be covered under warranty.

Chemical

Flow Adjustment

Some pumps are equipped with
an adjustable chemical injector
as shown here. Turn the chemical adjustment knob counterclockwise to increase the
amount of chemical used and
clockwise to decrease the
amount of chemical used. If the knob is turned clockwise until it stops, the chemical injector will close and
will not draw any chemicals/soaps.

The unit of measure for

the flow rate of water through the pressure washer.
CU: Cleaning Units. GPM multiplied by PSI.

9 -- ENG

Thermal

Relief VaJve

HOW TO USE WAND

In an effort to prevent damage,
pumps are equipped with a
thermal relief valve. This valve
will open when the temperature
inside the pump rises too high.
This valve will then release a
gush of water in an effort to
lower the temperature inside the
pump. Immediately after this
occurs, the valve will close.

See the Box Contents to determine if your unit is
equipped with a multi-reg or quick connect wand.

For Multi=Reg

Your pressure washer is equipped with a multi-reg
wand with both high and low pressure settings. The
high pressure setting is for cleaning and rinsing, the
low pressure setting is for applying chemicals or
cleaning solutions to surfaces.
RISK OF INJECTION OR
INJURY TO PERSON.
DO NOT DIRECT DISCHARGE STREAM
TOWARD PERSONS.

DO
NOT
allow your unit to operate
in bypass mode for more than two minutes
at any time. Overheating of pump will
cause damage to pump.

Pressure

WHEN USING THE HIGH
PRESSURE SETTING,
DO NOT ALLOW THE JET=LIKE SPRAY TO
COME IN CONTACT WITH UNPROTECTED

Adjustment

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 sudace to be cleaned. The
further away you are, the less the pressure will be
on the surface to be cleaned.

Reduce the speed of the gasoline engine (RPM).
Slow the engine down and the water pressure will
go down with it.

Step 3 is only for models without an automatic pressure regulator.
3.

Wands:

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.

SKIN, EYES, OR WITH ANY PETS OR ANk
MALS. SERIOUS INJURY CAN OCCUR.
For high pressure operation, pull back the nozzle of
the multi-reg wand as shown.

The nozzle at the end of the multi-reg wand can be
rotated to change the high pressure spray pattern
from a narrow jet to a 40 ° fan shape, as shown.
Markings have been placed on the nozzle to help you
select the spray pattern.

Once you have finished using your pressure washer, return the pressure regulator to its original position by turning it clockwise.

40 ° fan spray

stream(..

DO NOT attempt to
increase pump pres=
sure. A higher pressure setting than the
factory set pressure may damage pump.

For low pressure operation, extend the nozzle of the
multi-reg wand as shown.

DO NOT try to turn
pressure regulator knob
past the built=in stop or damage to pump
will result.

10 -- ENG

For Quick-Connect

Wands:

Chemical

nozzle - Black.

This nozzle is used to

apply chemicals or cleaning solutions.
powerful stream.

Spray Nozzles
Your pressure washer is equipped with up to five
spray nozzles. Each nozzle is color coded and delivers a specific spray pattern for a particular cleaning
purpose. The size of the nozzle determines the size
of the fan spray and the pressure out of the nozzle.
The 0°, 15° , 25 °, and 40 ° nozzles are high pressure
nozzles. The chemical nozzle is a low pressure nozzle.
The nozzles are housed in

Changing

Nozzles

DO NOT attempt to
change nozzles while
pressure washer is running. Turn engine
off before changing nozzles.
1.
2_

receptacles on the panel of
the pressure washer handle.
Color squares on the panel
identify nozzle location and
spray pattern.

Pull quick connect coupler
back and insert nozzle.
Release quick connect
coupler and twist nozzle to
make sure it is secure in
coupler.

HOW TO SIPHON
CHEMICALS/CLEANING
_WHEN

USING THE HIGH
PRESSURE NOZZLES,
DO NOT ALLOW THE JET=LIKE SPRAY TO
COME IN CONTACT WiTH UNPROTECTED
SKIN, EYES, OR WITH ANY PETS OR ANk
MALS. SERIOUS INJURY CAN OCCUR.

NOTE: Use only soaps and chemicals designed for
pressure washer use. Do not use bleach.
To siphon chemicals:
1.

Press chemical hose onto

barbed fitting located near
high pressure hose connection of pump as shown.
Place other end of chemical

15° nozzle - Yellow. This

hose
with
filter
onitinto
container holding chemical/cleaning solution.

On quick connect

wand:

Install low pressure (black)
nozzle into quick connect
fitting of wand, see How To
Use Wand paragraph in this
section.
4.

After use of chemical,
siphon clean water through
chemical hose to rinse it
and pump clean. Chemicals
which remain in pump can
damage it. Damage to pump due to chemicals will
not be covered under warranty.

This noz-

zle delivers a 40 degree spray
pattern and a less powerful
stream of water. It covers a
wide area of cleaning. This
nozzle should be used for
most general cleaning jobs.

On multi-reg:
Set multi-reg nozzle to low
pressure setting, see How
To Use Wand paragraph in
this section.

nozzle delivers a powerful 15
degree spray pattern for
intense cleaning of small
areas. This nozzle should only
be used on areas that can
withstand the high pressure
from this nozzle.

40 ° nozzle - White.

SOLVENTS

Siphoning chemicals or cleaning solvents is a low
pressure operation.

0 ° nozzle - Red. This nozzle delivers a pinpoint
stream and is extremely powerful. It covers a very small
area of cleaning. This nozzle
should only be used on surfaces that can withstand this
high pressure such as metal or
concrete. Do not use on
wood.

25 ° nozzle - Green. This
nozzle delivers a 25 degree
spray pattern for intense
cleaning of larger areas. This
nozzle should only be used on
areas that can withstand the
pressure from this nozzle.

It has the least

NOTE: Chemicals and soap will not siphon when
using high pressure nozzles.

11 -- ENG

STARTING
1.

Never turn water supply
off while pressure washer engine is running or damage to pump
will result.

Add fresh high quality unleaded
gasoline.
Never fill fuel
tank indoors.

Never fill fuel tank when engine is
running or hot. Do not smoke
when filling fuel tank.

SOME UNITS ARE NOT
EQUIPPED WiTH AN EZ START VALVE. ON THESE UNITS PRES=
SURE WiLL BUILD iN THE HOSE iF THE
ENGINE DOES NOT START AFTER TWO
PULLS. iF THE ENGINE DOES NOT START
AFTER TWO PULLS, PULL THE TRIGGER
TO RELIEVE THE PRESSURE. FAILURE TO
DO SO MAY CAUSE DAMAGE TO THE
STRAIN RECOIL MECHANISM.

Never fill fuel tank corn=
pletely. 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.
2.

Check engine oil level. See Engine Operator's
Manual for correct procedure.

NEVER RUN ENGINE iN=
DOORS
OR
IN EN=
CLOSED, POORLY VENTILATED AREAS.
ENGINE EXHAUST CONTAINS CARBON
MONOXIDE, AN ODORLESS AND DEADLY
GAS.

NOTE: Some engines are equipped with a low oil
sensor and the correct amount of oil must be added
or the engine will not start.
3.

4.
5.

Verify the filter screen is in water inlet of pump, as
shown.

Check pump oil level (if applicable-See
nance Section.)

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 COV=
ERED BY WARRANTY.

Mainte-

10. Depress trigger on gun to start water flow. Release
trigger to stop water flow.

Connect high pressure hose to pump outlet.

STAND ON A STABLE
SURFACE
AND
GRiP
GUN/WAND FIRMLY WITH BOTH HANDS.
EXPECT THE GUN TO KiCK WHEN TRIG=
GERED.

Never pull water supply
hose to move pressure
washer. This could damage hose and/or
pump inlet.
6.

Connect water source to pump inlet.

NOTE: Water source must provide a minimum
gallons per minute at 20 p.s.i.
Pressure

Hose

of 5

11. Adjust nozzle spray for the task being performed.
See How To Use Wand instructions in this section.

High
_ressure

Hose

If you are applying a chemical or cleaning solution,
See How To Siphon Chemicals/Cleaning
Solvents in Operation section of this manual.

Turn water source on.

NOTE:
Make sure water
turned on.

Start engine, see Engine Operator's Manual for
correct procedure.

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.
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
CAN OCCUR.

supply is

DO NOT use
water, use
cold water only.
12 -- ENG

SHUTTING
1.

DOWN

If you have siphoned chemicals, siphon a bucket
of clean water through the chemical hose. NOTE:
Failure to do so will cause damage to the pump.

Turn water source off.

Pull trigger on spray gun to relieve any water
pressure in hose or spray gun.

See Storage section in this manual for proper storage procedures.

Turn engine off. See Engine Owner's Manual.

NOTE: NEVER turn the water off with the engine
running.
Never turn water supply
off while pressure wash=
er engine is running or damage to pump
will result.

WHEN PERFORMING MAINTENANCE, YOU MAY BE EXPOSED TO HOT SURFACES,
WATER PRESSURE, MOVING PARTS, OR FIRE RESULTING IN DEATH. BEFORE PER=
FORMING 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 high-temperatures or dusty
conditions, more frequent maintenance checks will be required.

ENGINE
1.

PUMP

Consult the Engine Owners Manual for the manufacturer's recommendations for any and all maintenance.

DAPC Axial Cam

Pump oil (checking and changing). Refer to the following illustrations to identify which pump is on
your pressure washer. Refer to the chart for oil
type, oil capacity, and maintenance schedule (if
applicable).
DAPC Radial

Annovi Reverberi

Cat

13 -- ENG

PUMP MAINTENANCE
PUMP

TYPE

CHART
OiL TYPE

OiL CAPACITY

CHANGE

First t0 hours

Annovi

OiL

after every 50
hours

Reverberi

(XMV)

30W non detergent

13.5 oz.

Annovi Reverberi

(XRV)

30W non detergent

t8.54 oz.

Annovi

Reverberi

(XTV)

30W non detergent

9.92 oz,

Annovi

Reverberi

(RKV)

30W non detergent

t8.54 oz.

8 oz,

n/a

bottom of sight
glass

DAPC (axial cam)

* R&O 150

DAPC (radial)

** none

Cat

30W non detergent

* if unable to find use 30 W non detergent
** This pump requires no oil, it is an oilfree pump

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:

Reassemble the nozzle to the wand. Tighten
securely to prevent leaks.

Reconnect wand to gun and turn on water supply.

10. Start pressure washer and place wand into high
pressure setting to test.

Quick

Connect:

Shut off the pressure washer and turn off the
water supply.

Disconnect spark plug wire.

Pull trigger on gun handle to relieve any water
pressure.

Disconnect the wand from the gun.

Remove the nozzle from the end of the wand with
the 2mm allen wrench provided as shown.

Remove the high-pressure nozzle from the wand.
Remove any obstructions with the nozzle cleaning
tool provided and backflush with clean water.

Clean the nozzle using the nozzle cleaner provided
or a straightened paper clip. Insert into the nozzle
end and work back and forth until obstruction is
removed.

Direct water supply into nozzle end to backflush
loosened particles for 30 seconds.

Reassemble the nozzle to the wand.

Reconnect wand to gun and turn on water supply.

Start pressure washer and place wand into high
pressure setting to test.

Multi=Reg:
1.

Direct water supply into nozzle end to backflush
loosened particles for 30 seconds.

14 -- ENG

DAPC Axial

HOW TO CLEAN THE WATER iNLET
FILTER

Cam
Oil Fill Plug

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.

Clean filter by flushing it with water on both sides.

Install filter into water inlet of pump
Oil Drain
Annovi

Reverberi

Oil Fill Plug

HOW TO CHANGE

PUMP OIL

Loosen oil fill cap.

Place a container under the oil drain plug.

Remove oil drain plug.

After oil is drained replace oil drain plug. Tighten
securely.

Sig

Oil Drain Plug

CAT

Remove oil fill cap and fill with recommended oil.
See the Pump Maintenance Chart for the correct
amount and type of oil.

Oil Fill Plug

Replace oil fill cap and tighten securely.
Sig

Oil Drain Pluc

15 -- ENG

It is recommended that you follow these steps to protect the internal seals of the pressure washer when
storing the unit for an extended period and WHEN
FREEZING TEMPERATURES ARE EXPECTED.

Add RV antifreeze to hose as shown.

Pull engine starter rope slowly several times until
antifreeze comes out of high pressure hose connection of pump.

Remove short hose from water inlet of pump.

Install spark plug into spark plug hole and tighten
securely, then reconnect spark plug wire.

Drain all water from high pressure hose, coil it, and
store it in cradle of the pressure washer handle.

ENGINE
1.

Consult the Engine Owners Manual for the manufacturer's recommendations for storage.

PUMP
NOTE: If storing the unit for more than 30 days RV
antifreeze needs to be run through the pump. This
helps prevent damage within the pump head. RV
antifreeze is not only added for winterizing, but for
proper lubrication regardless of temperature or environment. Storing the pump less than 30 days does
not require the RV antifreeze.
1. Obtain a funnel, six ounces of RV antifreeze, and
approximately 12 inches of garden hose with a
male hose connector attached to one end.

corrosive

Use only RV antifreeze.
Any other antifreeze is
and can damage pump.

Disconnect spark plug wire.

Disconnect high pressure hose from pump and
from spray gun.

Connect 12 inch length of hose to water inlet of
pump.

10. 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/hose holder.
11. Store chemical hose, high pressure hose, spray
gun, and wand so they are protected from damage, such as being run over.

16 -- ENG

PROBLEM

CAUSE

CORRECTION

Engine will not start
(see Engine Manual for
further engine trouble-

1.
2.

No fuel.
Low oil
(if equipped with low oil shutdown),

Add Fuel.

Add required amount of oil.

shooting)

Pressure builds up after two pulls
on the recoil starter or after initial

Squeeze gun trigger to relieve pressure.

4.
5.

Push primer bulb 3 times or choke engine.
Attach spark plug wire.

use.

No or low pressure
(initial use)

Will not draw chemicals

Not primed or choked.

Spark plug wire not attached.

Engine ON/OFF switch in OFF position (If equipped.)

Place engine ON/OFF switch in ON 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.

Move choke to the "No Choke" position.

Fuel valve closed (if equipped)

Move the fuel valve lever to the "Open" position.

Wand not in high pressure.

See How to Use Wand paragraph in the
Operation Section.

Low water supply.

Water supply must be at least 5 GPM @ 20 PSI.

Leak at high pressure hose.

Repair leak. Apply Teflon tape if necessary.

Nozzle obstructed.

Water filter screen clogged.

Defective E-Z start valve.
(If applicable)

Clean nozzle with paper clip or nozzle cleaning
tool, pour water into nozzle end to flush out obstruction.
5.

Remove and clean filter.

Check with Authorized Warranty Service Center
(AWSC.)

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. Reconnect
water source to pump inlet and turn on water
source. Squeeze trigger to remove remaining air.

Choke lever in the "Choke" position.

Move choke to the "No Choke" position.

Throttle control lever is not in the
"Fast" position.

Move throttle control lever to the "Fast" position.

10. High pressure hose is too long.

10. Use high pressure hose under 100 feet.

Wand not in low pressure.

See How to Use Wand paragraph in the
Operation Section.

Chemical filter clogged.

Clean filter.

Chemical screen not in chemical

Insure end of chemical hose is fully submerged
into chemical.

4.
5.

Chemical adjustment knob closed.
Chemical too thick

Turn knob fully counterclockwise

Dilute chemical. Chemical should be the same
consistency as water.

Pressure hose is too long

Lengthen water supply hose instead of pressure
hose.

Chemical build up in chemical
injector.

Have parts cleaned or replaced by AWSC.

17 -- ENG

to open.

PROBLEM

CAUSE

CORRECTION

No or low pressure (after
period of normal use.)

1.
2.

Worn seal or packing.
Worn or obstructed valves.

1.
2.

Have replaced byAWSC.

Worn unloader piston.

Have replaced by AWSC.

Worn E-Z start valve.

Have replaced by AWSC.

Worn or broken o-ring.

Check and replace.

Loose hose connection.

Tighten.

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 AVVSC.

Oil leaking at pump

Oil seals worn.

Have replaced by AWSC.

(if applicable)

Loose drain plug.

Tighten.

Worn drain plug, o-ring
(if applicable).

Check and replace.

Worn fill plug o-ring.

Check and replace.

Pump overfilled.

Check for correct amount.

Incorrect oil used.

Drain and fill with correct amount and type of
oil.

Vent plug is clogged.

Clean vent plug; blow air through it to
remove any blockage. If problem persists,
replace plug.

Cable is loose from idle down
assembly.

Reattach cable.

Piston is separated from stem in
piston/stem assembly.

Have replaced by AWSC.

Piston Stem is bent.

Have replaced by AWSC.

Lack of water supply.

Water supply must be at least
PSI

O-rings damaged in idle body
assembly.

Have replaced by AWSC.

Damaged stem.

Have replaced by AWSC.

Water leaking
connection

at gun/wand

Water leaking at pump

Engine will not idle down
(if equipped
with Idle down
assembly)

Water leaking from stem on
idle down assembly (if
equipped)

18 -- ENG

Have replaced byAWSC.

5 GPM @ 20

DeVilbiss Air Power Company warrants to the original purchaser that each new pressure washer, service part,
and accessory is free from defects in material and workmanship, and agrees to repair or replace under this warranty any defective product or part as follows from the original date of purchase.
1 Year - Consumer applications

(i.e. personal residential household usage only).

90 Day - Commercial applications

(income producing).

Engine warranties are the responsibility of the engine manufacturer.

WARRANTY

SERVICE is available by delivering or shipping the defective product or part to any DeVilbiss Air
Power authorized warranty service location. To determine the nearest authorized warranty service location, call
the toll free number, 1-800-888-2468, Ext 2, 24 hours a day, 7 days a week or visit our web-site at
www.devap.com.
Specific instructions regarding servicing arrangements and scheduling may vary depending on
the type and size of the product and the availability of repair parts.
o

DO NOT return the defective product to the retailer.

Retain the original cash register receipt as proof of purchase for warranty work.

•

Purchasers should contact DeVilbiss Air Power Company directly if they do not receive satisfactory
from the authorized warranty service center.

THIS WARRANTY

IS NOT TRANSFERABLE

results

AND DOES NOT COVER

Products sold damaged or incomplete, sold "as is", sold reconditioned,

or used as rental equipment.

•

Delivery, installation, or normal adjustments

Damage or liability caused by shipping, improper handling, improper installation, improper maintenance,
improper modification, or the use of accessories and/or attachments not specifically recommended by
DeVilbiss Air Power Company for the product.

Repairs necessary because of operator abuse or negligence, or the failure to install, operate, maintain, and
store the product according to the instructions in the owner's manual.

Damage caused by cold, heat, rain, excessive humidity, corrosive environments and materials, or other contaminants.

•

Cosmetic defects that do not interfere with product functionality.

Freight costs from customer to DeVilbiss Air Power Company.

•

Repair and transportation

ANY INCIDENTAL, INDIRECT OR CONSEQUENTIAL LOSS, DAMAGE, OR EXPENSE THAT MAY RESULT
FROM ANY DEFECT, FAILURE OR MALFUNCTION OF THIS PRODUCT. Some states do not allow the
exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not
apply to you.

IMPLIED WARRANTIES, INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE, ARE LIMITED TO ONE YEAR FROM DATE OF ORIGINAL PURCHASE. Some states do not
allow limitations on how long an implied warranty lasts, so the above limitations may not apply to you.

explained in the owner's manual.

costs of products or parts determined not to be defective.

DeVI£BISS

AiR

PO £R

COMPANY

DeVilbiss Air Power Company
213 Industrial Drive * Jackson, TN 38301-9615
Telephone: 1-800-888-2468
Fax: 1-800-888-9036
www.devap.com

19 -- ENG

CALL 1=800=888=2468 EXT. 2
TO FiND A LOCAL AUTHORIZED
SERVICE CENTER NEAR YOU
FOR REPAIRS AND SERVICE PART PURCHASES.
GAS

OIL

Use fresh high quality gas.
Add stabilizer to fuel tank and run engine for 5 minutes before storage.
Pump oil: Refer to owners manual supplied with this unit.
Engine oil: Refer to engine manual supplied with this unit.
Some units are equipped with a low oil sensor and adequate oil must be added or the unit
will not start.
Some units do not require oil.

WATER

PRESSURE
ADJUSTMENT

PUMP

BY-PASS MODE

THERMAL
RELIEF VALVE
HOSE

ENGINE

SOAP CHEMICALS

NOZZLE
MAINTENANCE
SCHEDULE

STORAGE OR WINTER STORAGE

i
I

Use only cold water.
Don't operate unit with clogged or missing water filter/screen.
Don't operate unit without adequate water supply to pump. Adequate water supply is a
minimum of 20 psi and 5 gpm.
The pressure setting is preset at the factory to achieve optimum cleaning. If you need to
lower the pressure setting, refer to the owners manual for proper procedure.
Pull gun trigger every 2 minutes while engine is running.
Don't allow water to freeze in pump.
Siphon RV antifreeze into pump for cold weather storage or long term storage.
Never leave unit running for more than 2 minutes without pulling gun trigger; doing so will
destroy pump and void warranty.
Pump is equipped with a thermal relief valve. If the water overheats, this valve will open
and allow a gush of water to escape. Once the water is released, the valve closes allowing the pump to operate normally.
Don't allow hoses to contact the HOT engine muffler during or after use.
Never pull the hose to move the unit.
Do not adjust or attempt maintenance without consulting engine manual or an authorized
engine service center.
Add stabilizer to fuel tank and run engine for 5 minutes before storage.
Always turn on the water before starting the engine.
Use only soaps and chemicals designed for pressure washer use.
Keep nozzle unclogged. Refer to manual for cleaning procedures.
Chemical/soap cannot be siphoned in high pressure setting. Only in low setting.
Follow recommended

maintenance

schedule for engine & pump.

Refer to manuals.

Draw clean water through chemical inlet.
Add stabilizer to fuel tank and run engine for 5 minutes before storage.
Don't allow water to freeze in pump, gun, wand or hoses.
Siphon RV antifreeze into pump for cold weather storage or long term storage.

ALWAYS REFER TO THE MANUALS

SUPPLIED

WITH THIS UNIT

i
J

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Devilbiss EXH2425 User Manual PRESSURE WASHER Manuals And Guides L0607441

DEVILBISS Power Washer, Gas Manual L0607441 DEVILBISS Power Washer, Gas Owner's Manual, DEVILBISS Power Washer, Gas installation guides

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