CH PW340200 User manual

Professional Pressure Washer
Operating Instructions
Models: PW340200 and PW420400
IN472100AV 01/17
© 2016 Campbell Hausfeld
A Marmon/Berkshire Hathaway Company
EN
If your pressure washer is not working properly or if there are parts missing or broken,
please DO NOT RETURN IT TO THE PLACE OF PURCHASE. Contact our Customer Service
Department at 1-855-504-5678 or www.campbellhausfeld.com

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READ AND FOLLOW ALL INSTRUCTIONS • SAVE THESE INSTRUCTIONS • DO NOT DISCARD
Please read and save these instructions. Read carefully before attempting to
assemble, install, operate or maintain the product described.
Protect yourself and others by observing all safety information. Failure to comply
with instructions could result in personal injury and/or property damage! Retain
instructions for future reference.
REMINDER: Keep your dated proof of purchase for warranty purposes. Attach it to
this manual or file it for safekeeping.
Model #: __________________________
Serial #: ___________________________
Purchase Date: _____________________
For parts, product & service information
visit www.campbellhausfeld.com
Campbell Hausfeld
100 Production Drive
Harrison, Ohio 45030

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BEFORE YOU BEGIN
Description
Pressure Washer units are designed to provide high pressure water for cleaning applications. The pumps
and engines used in these applications are oil lubricated and should be checked for appropriate oil levels
between each use. The pressure washer units are to be used and maintained per the instructions in this
manual. Any other use of the pressure washer unit will void the warranty and the manufacturer will not be
responsible for problems or damages resulting from such misuse.
UNPACKING
After unpacking the unit, inspect carefully for any damage that may have occurred during transit. Check for
loose, missing or damaged parts. Check to be sure all supplied accessories are enclosed with the unit. In case
of questions, damaged or missing parts, please visit www.campbellhausfeld.com for customer assistance.
Do not operate unit if damaged during shipping, handling or use. Damage may result in
bursting and cause injury or property damage.
Required Items - Not Included
• Gasoline
• Water supply hose
• Water source
GENERAL SAFETY INSTRUCTIONS
Safety Guidelines
This manual contains information that is very important to know and understand. This information is
provided for SAFETY and to PREVENT EQUIPMENT PROBLEMS. To help recognize this information, observe
the following symbols.
Danger indicates an imminently hazardous situation which, if not avoided, WILL result in death
or serious injury.
Warning indicates a potentially hazardous situation which, if not avoided, COULD result in
death or serious injury.
Caution indicates a potentially hazardous situation which, if not avoided, MAY result in minor or
moderate injury.
Notice indicates important information, that if not followed, may cause damage to equipment.
IMPORTANT or NOTE: Information that requires special attention.
Safety Symbols
The following Safety Symbols appear throughout this manual to alert you to important safety hazards and
precautions.
Risk of
Explosion
Risk of Fire Risk of
Personal Injury
Wear Eye
Protection
Risk of ShockRisk of
Spillage
Risk of Hot
Parts
Risk of Falling Risk of
Chemical Burn
Risk of Injury
from Lifting
Risk of
Chemical Burn
MANUAL
Read
Manual
First
RIsk of Funes

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GENERAL SAFETY INSTRUCTIONS (CONTINUED)
California Proposition 65
This product and its exhaust contain chemicals known to the State of California to cause cancer,
birth defects or other reproductive harm. In addition, some cleaning products and dust contain
chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Wash hands after
handling.
Important Safety Information
Please read and save these instructions. Read carefully before attempting to assemble, install, operate or maintain the
product described. Protect yourself and others by observing all safety information. Failure to comply with instructions
could result in personal injury and/or property damage! Retain instructions for future reference.
This manual contains important safety, operational and maintenance information. If you have any
questions, please visit www.campbellhausfeld.com for customer assistance.
RISK TO BREATHING (ASPHYXIATION):
• Carbon Monoxide. Using an engine indoors can kill you in minutes. Engine exhaust contains high levels of carbon
monoxide (CO), a poisonous gas you cannot see or smell. You may be breathing CO even if you do not smell engine
exhaust.
• NEVER use an engine inside homes, garages, crawlspaces or other partly enclosed areas. Deadly levels of carbon
monoxide can build up in these areas. Using a fan or opening windows and doors does NOT supply enough fresh
air.
• ONLY use outdoors and far away from open windows, doors and vents. These openings can pull in engine exhaust.
• Even when the engine is used correctly, CO may leak into your home. ALWAYS use a battery-powered or battery
backup CO alarm in your house. Read and follow all directions for CO alarm before using. If you feel sick, dizzy or
weak at anytime, move to fresh air immediately. See a doctor. You could have carbon monoxide poisoning.
• Breathing exhaust fumes will cause serious injury or death! Engine exhaust contains carbon monoxide, an odorless
and deadly gas. Operate pressure washer in a well-ventilated area. Avoid enclosed areas such as garages, base-
ments, etc. Never operate unit in or near a location occupied by humans or animals.
• Some cleaning fluids contain substances which could cause injury to skin, eyes or lungs. Use only cleaning fluids
specifically recommended for high pressure washers. Follow manufacturers recommendations. Do not use chlorine
bleach or any other corrosive compound.
Do not operate this unit until you read this instruction manual and the engine instruction
manual for safety, operation and maintenance instructions. If you have any questions regarding
the product, please visit www.campbellhausfeld.com.
General Safety
RISK OF EXPLOSION OR FIRE:
• Spilled gasoline and it’s vapors can become ignited from cigarette sparks, electrical arcing, exhaust gases and hot
engine components such as the muffler. Shut off engine and allow it to cool before adding fuel to the tank. Use care in
filling tank to avoid spilling fuel. Move pressure washer away from fueling area before starting engine.
• Heat will expand fuel in the tank which could result in spillage and possible fire explosion. Keep maximum fuel
level 1/2” (12.7mm) below bottom of filler neck 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 extinguisher 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. Never operate pressure washer in an area containing dry brush
or weeds.
• Muffler exhaust heat can damage painted surfaces, melt any material sensitive to heat (such as siding, plastic, rub-
ber, vinyl or the pressure hose, itself), and damage live plants. Always keep pressure washer a minimum of 4’ (1.2m)
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.
• 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 spray flammable liquids.
MANUAL

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This product may not be equipped with a spark-arresting muffler. If the product is not equipped
and will be used around flammable materials or on land covered with materials such as
agricultural crops, forest, brush, grass or other similar items, then an approved spark arrester must be installed and is
legally required in the state of California. It is a violation of California statutes section 130050 and/or sections 4442 and
4443 of the California Public Resources Code, unless the engine is equipped with a spark arrester, as defined in section
4442, and maintained in effective working order. Spark arresters are also required on some U.S. Forest Service land and
may also be legally required under other statutes and ordinances.
RISK OF FLUID INJECTION AND LACERATION:
• 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 high
pressure 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 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.
-When using replacement lances or guns with this pressure washer, DO NOT use a lance and/or lance/gun
combination that is shorter in length than what was provided with this pressure washer as measured from the
nozzle end of the lance to the gun trigger.
• Injuries can result if system pressure is not reduced before attempting maintenance or disassembly. To relieve
system pressure, shut off engine, turn off water supply and pull gun trigger until water stops flowing. Use only
accessories rated equal to or higher than the rating of the pressure washer.
RISK OF INJURY FROM SPRAY:
• High-velocity fluid spray can cause objects to break, projecting particles at high speed. 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.
• Light or unsecured objects can become hazardous projectiles. 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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GENERAL SAFETY INSTRUCTIONS (CONTINUED)
RISK OF UNSAFE OPERATION:
• Unsafe operation of your pressure washer could lead to serious injury or death to you or others.
- Do not use chlorine bleach or any other corrosive compound.
- Become familiar with the operation and controls of the pressure washer.
- Keep operating area clear of all persons, pets and obstacles.
- Do not operate the product when fatigued or under the influence of alcohol or drugs. Stay alert at all times.
- Never compromise the safety features of this product.
- Do not operate machine with missing, broken or unauthorized parts.
- Never leave wand unattended while unit is running.
• If 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 cleaning tool that could look like a toy to a child. Keep children away from the
pressure washer at all times.
• Reactive force of spray will cause gun/wand to kickback, and could cause the operator to slip or fall or misdirect the
spray. Improper control of gun/wand can result in injuries to self and
others.
- Do not overreach or stand on an unstable support.
- Do not use pressure washer while standing on a ladder.
- Grip gun/wand firmly with both hands. Expect the gun to kickback when triggered.
RISK OF INJURY OR PROPERTY DAMAGE WHEN TRANSPORTING OR STORING:
• 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 shut-off valve, drain the fuel from tank before
transporting. Only transport fuel in an OSHA-approved container.
- Always place pressure washer on a protective mat when transporting to protect against damage to vehicle from
leaks.
• Oil could fill the cylinder and damage the engine if the unit is not stored or transported in an upright position.
Always transport and store unit in an upright position. Remove pressure washer from vehicle immediately upon
arrival at your destination.
RISK OF ELECTRICAL SHOCK:
• Spray directed at electrical outlets or switches, or objects connected to an electrical circuit, could result in a fatal
electrical shock. Unplug any electrically operated product before attempting to clean it. Direct spray away from
electric outlets and switches.
RISK OF CHEMICAL BURN:
• 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 spray acids, gasoline, kerosene, or any other flammable materials with this product. Use only household
detergents, cleaners and degreasers recommended for use with pressure washers.
- Wear protective clothing to protect eyes and skin from contact with sprayed materials.

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RISK OF BURSTING:
• High-velocity fluid spray directed at pneumatic tire sidewalls (such as found on automobiles, trailers and the like)
could damage the sidewall resulting in serious injury. On pressure washers rated above 1600PSI (11032kPa) use
the widest fan spray (40º nozzle) and keep the spray a minimum of 8” (20 cm) from the pneumatic tire sidewall. Do
not aim spray directly at the joint between the tire and rim.
RISK OF HOT SURFACES:
• Contact with hot surfaces, such as engine 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.
RISK OF INJURY FROM LIFTING:
• 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.
The DANGER, WARNING, CAUTION, and NOTICE notifications and instructions in this manual cannot
cover all possible conditions and situations that may occur. It must be understood by the operator that
caution is a factor which cannot be built into this product, but must be supplied by the operator.
SAVE THESE INSTRUCTIONS
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SPECIFICATIONS
PW340200 PW420400
Maximum PSI * 3400 PSI 4200 PSI
Maximum GPM * 2.5 GPM 4.0 GPM
High Pressure Hose 25 ft (7.6 m) 50 ft. (15.2 m)
Pressure of Inlet Water 20 PSI to 100 PSI 20 PSI to 100 PSI
Inlet Water Cold Tap (100° F max.) Cold Tap (100° F max.)
Soap Consumption Rate 10% max. 10% max.
Unit Weight 90 lbs. 129 lbs.
* Rated Pressure and Rated Water Flow is within manufacturing tolerance of (+/- 10%).
In a continued commitment to improve quality, the manufacturer reserves the right to make component changes, design
changes, or specification changes when necessary and without notice.
DIMENSIONS
PW340200 PW420400
Length 21 in. 37 in.
Width 22 in. 23 in.
Height 34 in. 28 in.

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GETTING TO KNOW YOUR UNIT
NOTE: Photographs and line drawings used in this manual are for reference only and do not represent a specific model.
Compare the illustrations with your unit to familiarize yourself with the location of various controls and adjustments.
Save this manual for future reference.
NOT SHOWN:
Detergent Siphon Hose: Feeds cleaning agents into the pump to mix with the water. See How To Apply Chemicals/Cleaning Solvents
instructions in Operation section.
High Pressure Hose: Carries the pressurized water from the pump to the gun and spray wand.
Quick-Connect Spray Wand: Allows the user to quickly change out high pressure nozzles. See How To Use Spray Wand instructions in
Operation section.
Spray Gun: Connects with spray wand to control water flow rate, direction and pressure.
BASIC ELEMENTS OF AN ENGINE
Refer to the Engine Owner’s 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.
Figure 1
High Pressure Pump: Increases
the pressure of the water supply.
Engine: Drives the high pressure pump. Refer to the
Engine Owner’s Manual for location and operation of
engine controls.
Handle
Frame
Pump Outlet
Pump Inlet
Quick Connect Nozzles
Nozzle Holder
Hose Holder
Spray Gun Holder

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QUICK SETUP GUIDE
To reduce the risk of injury, read the pressure washer instruction manual and the engine
instruction manual before operating pressure washer.
Install the Handle
Slide the handle assembly onto the frame and secure with saddle bolts and knobs.
Add/Check Oil
The engine is shipped without oil. Before starting engine, add the oil provided.
Check oil level prior to each use. Refer to Engine Owner’s Manual for complete
procedure.
Add Gasoline
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 Owner’s Manual for complete procedure.
IMPORTANT: Ethanol ShieldTM (sold separately) is a fuel stabilizer that helps
eliminate and prevent ethanol related problems in power equipment. Follow the
instructions on the container and add to the gasoline.
QUICK START GUIDE
• Never run engine indoors or in enclosed, poorly ventilated areas. Engine exhaust contains carbon monoxide, an
odorless and deadly gas.
• 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.
Connect Garden Hose to Pump
Thread the garden hose to the pump inlet.
Connect High Pressure Hose to Pump
Connect the high pressure hose to the pump outlet.
Connect High Pressure Hose to Spray Gun
Thread the other end of the high pressure hose to the spray gun.
Figure 2 - Install handle
Figure 3 - Add/check oil
Figure 4 - Add gasoline
Figure 5
Figure 6
Figure 7

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Connect Spray Wand to Spray Gun
Thread the spray wand into the end of the spray gun.
Connect QC Nozzles to Spray Wand
Pull quick connect coupler back and insert nozzle. Release quick connect coupler and twist
nozzle to make sure it is secure in coupler.
\
Turn Water Faucet Completely On
Do not run the unit without water supply connected and turned on. Use Cold Water Only.
Release Air from System
Release all air from pump and high pressure hose by depressing trigger until a steady stream
of water is present. Approximately 30 seconds.
Verify the Fuel Switch is in the ON Position
Move the Choke to the CLOSED Position
Pull the Recoil Starter Grip
Pull the recoil starter grip to start the engine.
Move the Choke to the OPEN Position
Gradually move the Choke to the OPEN Position after engine starts.
This Guide is not a substitute for reading the operator’s manual. User must read
and understand operator’s manual before using this product.
30 S
Figure 8
Figure 9
Figure 10
Figure 11
Figure 13
Figure 14
Figure 15
Figure 12

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ASSEMBLY INSTRUCTIONS (FIGURES 16 AND 17)
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.
Slide the handle assembly (G) onto the frame (H) and secure
with saddle bolts and knobs.
Risk of personal injury. Avoid placing hands
between handle and frame when assembling
to prevent pinching.
4. Remove the colored quick-connect nozzles (K)
from the plastic bag and insert them into correct
grommet on the nozzle holder (L). Nozzles are color
coded to match colored nozzles on label.
5. Connect wand (E) to gun (D). Tighten securely.
6. Attach high pressure hose (C) to gun (D). Tighten
securely.
The engine is shipped without oil. Before starting engine, add the oil provided. Damage to the
engine will occur if the engine is run without oil, this damage will not be covered under
warranty.
The high-pressure pump was filled with oil at the factory. Always check oil level before using
(refer to Maintenance for more information).
OPERATING INSTRUCTIONS
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 equals CU.
Bypass Mode: Allows water to re-circulate within the pump when the gun trigger is not pulled. This feature
allows the operator to release the trigger gun and reposition themselves without having to turn the engine
off in between cleaning actions.
Do not allow the unit to run for more than two minutes without the gun trigger being pulled.
This could cause overheating and damage to the pump. When the temperature inside the pump
rises too high, the thermal relief valve will open and release a spray of water from the pump to lower the internal
temperature. The valve will then close.
Thermal Relief Valve (Figure 18): When the temperature inside the pump rises too high, this
valve will open and release a gush of water in an effort to lower the temperature inside the
pump. The valve will then close.
Detergent 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. If your water source is a well, the
garden hose length can only be 30ft. (9m) max.
To reduce the possibility of contamination always protect against backflow when connected to
a potable water system.
E
D
CD
K
L
G
H
P
Figure 16
Figure 17
Figure 18

Pressure Washer Operating Features
PRESSURE ADJUSTMENTS (FIG. 19)
The pressure setting is preset at the factory to achieve
optimum pressure and cleaning. If you need to lower the
pressure, it can be accomplished by these methods.
1. Back away from the surface to be cleaned. The
further away you are, the less the pressure will be on
the surface to be cleaned.
2. Change to the 40˚ nozzle (white). This nozzle
delivers a less powerful stream of water and a wider spray pattern. Refer to How To Use Spray Wand.
3. This pressure washer’s high pressure pump is equipped with an additional feature that allows the
pressure setting to be adjusted.
To lower the pressure, turn the pressure control knob on the pump counterclockwise to the desired
pressure.
To return the pump pressure to the factory setting, turn the pressure control knob on the pump
clockwise until it stops.
DO NOT overtighten the pressure control knob, if overtightened the knob COULD break and
result in immediate loss of water pressure and costly repairs to the unit.
How To Use Spray Wand
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.
NOZZLE
COLOR
SPRAY
PATTERN USES SURFACES*
Red
0˚ powerful pinpoint
for spot cleaning
of hard, unpainted
surfaces or for high
reach areas
unpainted metal or
concrete;
DO NOT use on wood
Yellow
15˚ intense cleaning
of unpainted hard
surfaces
grills, driveways, concrete
or brick walkways,
unpainted brick or stucco
Green
25˚ intense cleaning of
larger areas
metal, concrete or wood
White
40˚ cleaning of painted
or delicate surfaces
Auto/RV, marine, wood,
painted brick and stucco,
vinyl, painted siding
Black
low pressure applies cleaning
solutions
Low pressure spray is safe
on all surfaces. Always
verify compatibility of
cleaning solution prior to
use.
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 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.
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-
+
Figure 19

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OPERATING INSTRUCTIONS (CONTINUED)
Changing Nozzles on Spray Wand (Fig. 20)
Risk of fluid injection. Do not direct discharge stream toward persons,
unprotected skin, eyes or any pets or animals. Serious injury will occur.
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 (E) back and insert nozzle (K).
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 collar is fully engaged (forward) before squeezing gun trigger.
How To Apply Chemicals/Cleaning Solvents (Fig. 21)
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. Ensure detergent siphon hose (Figure 21) is attached to barbed fitting location
near high pressure hose connection of pump as shown.
2. Place other end of detergent siphon 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 detergent siphon 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 chemical residue will not be covered under warranty.
NOTE: Chemicals and soaps will not siphon if the soap nozzle is not selected on the spray wand.
Starting (Fig. 22)
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!
Carbon Monoxide. Using an engine indoors can kill you in minutes. Engine exhaust contains
high levels of carbon monoxide (CO), a poisonous gas you cannot see or smell. You may be
breathing CO even if you do not smell engine exhaust.
• Breathing exhaust fumes will cause serious injury or death! Engine exhaust contains carbon monoxide,
an odorless and deadly gas.
• Operate pressure washer in a well-ventilated area. Avoid enclosed areas such as garages, basements,
etc.
• Never operate unit in or near a location occupied by humans or animals.
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” (12.7mm) below bottom of filler neck to provide space
for fuel expansion. Wipe any fuel spillage from engine and equipment before starting engine.
• 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.
KE
F
Figure 20
Figure 21

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Risk of property damage. Never pull water supply hose to move pressure 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 visit www.campbellhausfeld.com
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
Owner’s Manual for correct procedure.
IMPORTANT: Ethanol ShieldTM (sold separately) is a fuel stabilizer that helps eliminate and prevent ethanol
related problems in power equipment. Follow the instructions on the container and add to the gasoline.
Use of fuels with greater than 10% ethanol are not approved for
use in this product per EPA regulations and will damage the unit
and void the warranty.
2. Check engine oil level. Refer to Engine Owner’s Manual for correct procedure.
3. Check pump oil level. The oil level should come to the dot in the middle of the sight glass. Refer to the
Pump paragraph under Maintenance.
4. 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.
5. Verify the filter screen (M) is in water inlet of pump. NOTE: Convex side faces out.
6. Connect water source (N) to pump inlet (J). NOTE: Water source must provide a minimum of 5 gallons
per minute at 20 PSI.
7. Connect high pressure hose (C) to pump outlet (I).
To reduce the possibility of contamination always protect against backflow when connected to
a potable water system.
8. Choose the correct nozzle for the job to be performed. See How To Use spray Wand instructions in this
section. NOTE: If applying a chemical or cleaning solution, see How To Apply Chemicals/Cleaning
Solvents instructions in this section.
9. Turn water source on.
Risk of property damage. Failure to do so could cause damage to the pump.
10. Remove all air from the pump and high pressure hose by depressing trigger until a steady stream of
water is present.
11. Start engine. See Engine Owner’s 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.
NOTE: If the oil level in the engine is low, the engine will not start. If the engine does not start, check the oil
level and add oil as needed.
12. Depress trigger on gun to start water flow.
Do not allow the unit to run for more than two minutes without the gun trigger being pulled.
This could cause overheating and damage to the pump. When the temperature inside the pump
rises too high, the thermal relief valve will open and release a spray of water from the pump to lower the internal
temperature. The valve will then close.
I
C
N
J
M
Figure 22

MAINTENANCE / REPAIR TROUBLESHOOTING OPERATION
ASSEMBLY /
INSTALLATION
SAFETY /
SPECIFICATIONS GETTING STARTED
14
OPERATING INSTRUCTIONS (CONTINUED)
Risk of unsafe operation. Stand on a stable surface and grip gun/spray wand firmly with both
hands. Expect the gun to kick when triggered.
13. Release trigger to stop water flow.
Risk of injury from spray. Always engage the trigger lock (O) when gun is
not in use. Failure to do so could cause accidental spraying.
Shutting Down
1. After each use, if you have applied chemicals, place detergent siphon 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.
NOTE: Failure to release system pressure will prevent removal of high pressure hose from spray gun or
pump connection.
5. See Storage section in this manual for proper storage procedures.
O
Figure 23

TROUBLESHOOTING GUIDE
SYMPTOM POSSIBLE CAUSE(S) CORRECTIVE ACTION
Engine will not start (see
Engine Owner's Manual for
further engine
troubleshooting)
1. No fuel 1. Add fresh fuel
2. Pressure builds up after two pulls on
the recoil starter or after initial use
2. Squeeze gun trigger to relieve pressure
3. Choke lever in the "No Choke" position 3. Move choke to the "Choke" position
4. Spark plug wire not attached 4. Attach spark plug wire
5. Engine switch in OFF position. 5. Place engine switch in ON position.
6. 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.
6. Move choke to the "No Choke" position.
No or low pressure (initial use) 1. Spray wand not in high pressure 1. See How to Use Spray Wand instructions in the
Operation Section
2. Low water supply 2. Water supply must be at least 5 gpm @ 20 PSI
3. Leak at high pressure hose fitting 3. Repair leak. Apply sealant tape if necessary
4. Nozzle obstructed 4. See Nozzle Cleaning instructions in the Maintenance
section
5. Water filter screen clogged 5. Remove and clean filter. See Cleaning Water Inlet
Filter paragraph in the Maintenance section for the
correct procedure
6. Air in hose 6. Turn off the engine, then the water source.
Disconnect the water source from the pump inlet and
turn the water source on to remove all air from the
hose. When there is a steady stream of water present,
turn water source off. Re-connect water source to
pump inlet and turn on water source. Squeeze trigger
to remove remaining air
7. Choke in the “Choke” position 7. Move choke to the “No Choke” position
8. High pressure hose is too long 8. Use high pressure hose under 100 feet (30m)
Will not draw chemicals 1. Spray wand not in low pressure 1. See How to Use Spray Wand paragraph in the
Operation Section
2. Chemical filter clogged 2. Clean filter
3. Chemical screen not in cleaning
solution
3. Make sure end of detergent siphon hose is fully
submerged into cleaning solution
4. Chemical too thick 4. Dilute chemical. Chemical should be the same
consistency as water
5. Pressure hose is too long 5. Lengthen water supply hose instead of high pressure
hose
6. Chemical build up in chemical injector 6. Please contact our customer service department at
1-855-504-5678 or www.campbellhausfeld.com
No or low pressure
(after period of normal use)
1. Worn seal or packing 1. Please contact our customer service department at
1-855-504-5678 or www.campbellhausfeld.com
2. Worn or obstructed valves 2. Please contact our customer service department at
1-855-504-5678 or www.campbellhausfeld.com
3. Worn unloader piston 3. Please contact our customer service department at
1-855-504-5678 or www.campbellhausfeld.com
Water leaking at gun/spray
wand connection
1. Worn or torn o-ring 1. Check and replace
2. Loose hose connection 2. Tighten
Water leaking at pump 1. Loose connections 1. Tighten
2. Piston packings worn 2. Please contact our customer service department at
1-855-504-5678 or www.campbellhausfeld.com
3. Worn or torn o-ring 3. Please contact our customer service department at
1-855-504-5678 or www.campbellhausfeld.com
4. Pump head or tubes damaged from
freezing
4. Please contact our customer service department at
1-855-504-5678 or www.campbellhausfeld.com
Pump pulsates Nozzle obstructed See Nozzle Cleaning paragraph in the Maintenance
section for the correct procedure
MAINTENANCE / REPAIR
TROUBLESHOOTINGOPERATION
ASSEMBLY /
INSTALLATION
SAFETY /
SPECIFICATIONS
GETTING STARTED
15

MAINTENANCE AND INSPECTION INSTRUCTIONS
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 frequent maintenance checks will be required.
Engine
Consult the Engine Owner’s Manual for the manufacturer’s recommendations for any and all maintenance.
NOTE: The engine drain plug is located at the rear of the unit.
Pump (Fig. 24)
NOTE: The Pump was filled with oil at the factory. Use SAE 15W-40 oil.
Change the pump oil after the first 50hours of operation and every 100
hours thereafter, or every 3months.
TO CHECK OIL
The oil level should come to the dot in the middle of the sight glass (AA).
HOW TO CHANGE PUMP OIL
1. Loosen pump oil fill plug (BB).
2. Place a container under the pump oil drain plug (CC).
3. Remove pump oil drain plug.
4. After oil is drained, replace pump oil drain plug. Tighten securely.
5. Refill pump using SAE 15W-40 oil
6. Replace pump oil fill plug and tighten securely.
If there is a problem with the pump contact us at 1-855-504-5678 or www.campbellhausfeld.com
Connections
Connections on pressure washer hoses, gun and spray wand should be cleaned regularly and lubricated with
light oil or lithium grease to prevent leakage and damage to the o-rings.
Nozzle Cleaning (Fig. 25)
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 (K) from the spray wand. Remove any obstructions
with the nozzle cleaning tool provided and backflush with clean water.
5. Direct water supply (N) into nozzle 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.
MAINTENANCE / REPAIR TROUBLESHOOTING OPERATION
ASSEMBLY /
INSTALLATION
SAFETY /
SPECIFICATIONS GETTING STARTED
16
N
CC
AA
BB
Figure 24
Figure 25

MAINTENANCE / REPAIR
TROUBLESHOOTINGOPERATION
ASSEMBLY /
INSTALLATION
SAFETY /
SPECIFICATIONS
GETTING STARTED
17
Clean The Water Inlet Filter (Fig. 22)
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.
2. Clean filter by flushing it with water on both sides.
3. Re-insert filter into water inlet of pump. NOTE: Convex side faces out.
NOTE: Do not operate the pressure washer without filter properly installed.
STORAGE
Engine
Consult the Engine Owner’s Manual for manufacturer’s recommendations for storage.
TO PREVENT FUEL-RELATED PROBLEMS
1. Add Ethanol ShieldTM fuel stabilizer following the manufacturer’s instructions. When adding a gasoline
stabilizer, fill the fuel tank with fresh gasoline. If only partially filled, air in the tank will promote fuel
deterioration during storage. If you keep a container of gasoline for refueling, be sure that it contains
only fresh gasoline.
2. After adding a gasoline stabilizer, run the engine outdoors for 10 minutes to be sure that treated
gasoline has replaced the untreated gasoline in the carburetor.
3. Turn the fuel valve to the OFF position.
4. Continue to run the engine until it stops from the lack of fuel in the carburetor fuel bowl. Running
time should be less than 3 minutes.
Pump
The manufacturer recommends using pressure washer winterizing fluid when storing the unit for more than
30 days and/or when freezing temperatures are expected.
NOTE: Using pump guard helps provide proper lubrication to the internal seals of the pump regardless of
temperature or environment.
Risk of property damage. Use pressure washer winterizing fluid found at major retailers.
Other products could be corrosive and/or contain alcohol which may cause pump damage.
1. Turn off pressure washer and disconnect hoses from pump.
2. Unscrew bottle valve from Pump Guard bottle and remove seal.
3. Screw bottle valve back onto bottle.
4. Attach bottle to water inlet of pump.
5. Squeeze bottle to inject contents into pump.
6. With ignition switch off, simultaneously pull starter rope and squeeze bottle. Repeat until protector
fluid exits pump outlet. NOTE: This step may require two people.
ACCESSORIES
Risk of fluid injection. When using replacement spray wands or guns with this pressure washer,
DO NOT use a spray wand and/or spray gun/wand combination that is shorter in length than
what was provided with this pressure washer as measured from the nozzle end of the wand to the gun trigger.
The use of any other accessory not recommended for use with this tool could be hazardous. Use
only accessories rated equal to or greater than the rating of the pressure washer.
SERVICE INFORMATION
Do not return this product to your retailer. Please contact our customer service department at
1-855-504-5678 or www.campbellhausfeld.com

18
Reminder: Keep your dated proof of purchase for warranty purposes! Attach it to this manual or file it for safekeeping.
LIMITED WARRANTY
1. DURATION: From the date of purchase by the original purchaser as follows:
ENGINE AND EMISSIONS CONTROL SYSTEM: Covered by engine manufacturer warranty. See engine manual.
HIGH PRESSURE PUMP (DEFECTS IN MATERIAL AND WORKMANSHIP): Five (5) years from date of purchase.
FRAME (DEFECTS IN MATERIAL AND WORKMANSHIP): One (1) year from date of purchase.
ACCESSORIES (DEFECTS IN MATERIAL AND WORKMANSHIP): Ninety (90) days from date of purchase. Includes
nozzles, hoses, spray guns, wands, tires, feet.
2. WHO GIVES THIS WARRANTY (WARRANTOR): Campbell Hausfeld a Marmon/Berkshire Hathaway Company, 100
Production Drive, Harrison, Ohio, 45030. Visit www.campbellhausfeld.com
3. WHO RECEIVES THIS WARRANTY (PURCHASER): The original purchaser (other than for purposes of resale) of the
Campbell Hausfeld pressure washer.
4. WHAT PRODUCTS ARE COVERED UNDER THIS WARRANTY: This Campbell Hausfeld Pressure Washer.
5. WHAT IS COVERED UNDER THIS WARRANTY: Substantial defects on material and workmanship which occur within
the duration of the warranty period with the exceptions noted below.
6. WHAT IS NOT COVERED UNDER THIS WARRANTY:
A. Implied warranties, including those of merchantability and FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED
FROM THE DATE OF ORIGINAL PURCHASE AS STATED IN THE DURATION. Some states do not allow limitation on
how long an implied warranty lasts, so the above limitations may not apply to you.
B. ANY INCIDENTAL, INDIRECT, OR CONSEQUENTIAL LOSS, DAMAGE, OR EXPENSE THAT MAY RESULT FROM ANY
DEFECT, FAILURE, OR MALFUNCTION OF THE CAMPBELL HAUSFELD pressure washer. 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.
C. Any failure that results from shipping damage, accident, purchaser’s abuse, neglect or failure to install and
operate pressure washer in accordance with instructions provided in the owner’s manual(s) supplied with
product.
D. Pre-delivery service, i.e. assembly, oil or lubricants and adjustment.
E. Items or service normally required to maintain the pressure washer.
F. Additional items not covered under the warranty:
1. Normal wear items such as high pressure hoses, water and oil seals, o-rings, valves, lances and spray nozzles.
2. Cosmetic defects that do not interfere with functionality.
3. Rusted components.
4. Pump wear or valve damage caused by using improper oil, oil contamination or by failure to follow proper
oil maintenance guidelines.
G. Gasoline engine and components are expressly excluded from coverage under this limited warranty. Such
components should be returned by the purchaser to the original manufacturer or to its authorized repair
stations for service.
7. RESPONSIBILITIES OF WARRANTOR UNDER THIS WARRANTY: Repair or replace, at Warrantor’s option, pressure
washer or component which is defective, has malfunctioned and/or failed to conform within duration of the
warranty period.
8. RESPONSIBILITIES OF PURCHASER UNDER THIS WARRANTY:
A. Provide dated proof of purchase and maintenance records.
B. Deliver or ship the Campbell Hausfeld pressure washer or component to nearest Campbell Hausfeld Authorized
Service Center. Freight costs, if any, must be borne by the purchaser.
C. Use reasonable care in the operation and maintenance of the pressure washer as described in the owner’s
manual(s).
9. WHEN WARRANTOR WILL PERFORM REPAIR OR REPLACEMENT UNDER THIS WARRANTY: Repair or replacement
will be scheduled and serviced according to the normal work flow at the servicing location, and depending on the
availability of replacement parts.
This Limited Warranty applies in the U.S., Canada and Mexico only and gives you specific legal rights. You may also have
other rights which vary from state to state or country to country.