Campbell Hausfeld PW2120 User manual

BUILT TO LAST
Gasoline Powered
Horizontal Pressure
Washers
Product Manual PW2120, PW2420, PW2458, PW2705
Carefully read and understand these instructions before
operating your pressure washer.
© 2003 Campbell Hausfeld/Scott Fetzer IN462400AV 8/03
Frequently Asked Questions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Safety and Warning Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Assembly and Pre-Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 5
Startup, Operation, Shutdown, and Storage . . . . . . . . . . . . . . . . . . . . . . . . 6 - 10
Maintenance and Technical Information . . . . . . . . . . . . . . . . . . . . . . . . . . 10 - 11
Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 13
Service Record and Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Contents Page
For parts, product & service information
visit www.chpower.com
Please record Model No. and Serial No. for use when contacting
the manufacturer:
Model No. ______________ Purchase date ____________________
Serial No. ______________ Purchase place ____________________
For Information About This Product, call 1-800-330-0712
REMINDER: Keep your dated proof of purchase for warranty purposes! Attach it to this manual or file it for safekeeping.
See Warranty on page 14 for important information about commercial use of this product.

Pressure Washers
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Frequently Asked Questions
How do I start my pressure washer?
1. Make sure you have gas and oil in the engine.
2. Turn the water on, then trigger the gun to make sure the water will flow smoothly out of the nozzle or tip.
3. Put the engine throttle control in the “Fast/Start” position. Set the fuel shut off switch to “ON.” Set the on/off switch to “ON” (if
applicable).
4. Set the choke to “ON.”
5. Pull the trigger (to relieve any back pressure in the pump) while pulling the starter cord.
6. If the engine does not start after three tries, repeat Step 5 (See Page 6) or see Troubleshooting Section (Pages 12-13).
What type of oil do I use?
The pump on the horizontal pressure washer comes filled with the correct amount of oil and should not need filling. See Page 11 for
pump oil types and quantities. THE ENGINE DOES NOT COME FILLED WITH OIL. See Page 11 for engine oil types and quantities. Refer
to Pages 10 and 11 of this manual and also refer to the included engine owner’s manual for oil changing instructions.
Why don’t I have any water pressure?
• Is the water hose attached to the pressure washer?
•Is the water turned on?
•Check for any kinks, leaks, or blockage in the hoses, fittings, or the nozzle.
•Is the adjustable nozzle in the low psi position? If so, move it into the high psi position (See Page 8).
•Is the inlet filter screen free of debris? Check and remove debris if needed.
•Is the quick connect tip in place? (See Page 5.)
How do I get high pressure?
•For high pressure, move the nozzle into the high psi position (See Page 8).
•For units with quick connect tips: use any color tip with the exception of black. Black tip is used for low pressure detergent application.
How do I get the soap suction to work?
1. Connect the clear plastic chemical suction tube to the plastic hose barb on detergent tank (See Page 4).
2. Fill the detergent tank with detergent forumlated for use with pressure washers.
3. Move the nozzle into the low psi position (See Page 8).
4. For quick connect lance, use black detergent tip (See Page 8).
Why doesn’t the pressure washer apply detergents with high pressure?
The reason you don’t apply detergents with high pressure is because the detergents “bounce” off the cleaning surface as fast as you
apply them. Detergent is only effective when you allow it time to work on the surface of whatever you are cleaning. You can only
apply detergent at low pressure, wait 1-3 minutes to allow it to work, and rinse the surface with high pressure.
What maintenance do I need to perform on my pressure washer?
1. After turning off the pressure washer and the water, depressurize the hose by triggering the gun.
2. Remove the garden hose and high pressure hose from the pump.
3. Pull the start rope slowly five times to purge water from the pump. This will help protect the pump from damage.
4. Do not store your pressure washer in an area where the temperature will drop below 32˚ F unless pressure washer is properly win-
terized (see Page 9).
What do I do if I’m missing a part?
Call Campbell Hausfeld at 1-800-330-0712 and we will promptly replace your missing parts. DO NOT RETURN THE PRESSURE WASH-
ER TO THE RETAILER!
Where can I buy accessories for my pressure washer?
•If you can’t find accessories at the store where you purchased your pressure washer, call Campbell Hausfeld at 1-800-330-0712 or
visit our website at www.chpower.com.
Who do I call if I have questions or problems?
Call Campbell Hausfeld at 1-800-330-0712 (U.S.A.)
2

ble support. Keep good footing and
balance at all times.
10. Follow the maintenance instructions
specified in the manual.
Risk of injection
or severe injury.
Keep clear of nozzle. Do not discharge
streams at persons. This product is to
be used only by trained operators.
Always remove lance from gun before
cleaning debris from tip.
•Keep clear of nozzle. NEVER direct
high pressure spray at a person, ani-
mal, or yourself.
•Always wear safety glasses or gog-
gles and protective equipment
(hearing protection, gloves, rubber
boots, protective clothing) when
operating or performing mainte-
nance.
•Never put hand or fingers over the
spray tip while operating the unit.
•Never try to stop or deflect leaks
with any body part.
•Always engage the trigger safety
latch in the safe position when
spraying is stopped even if only for
a few moments.
•Always follow detergent manufac-
turer’s label recommendations for
proper use of detergents. Always
protect eyes, skin, and respiratory
system from detergent use.
Do not use pres-
sure that exceeds
the operating pressure of any of the
parts (hoses, fittings, etc.) in the pres-
surized system. Ensure all equipment
and accessories are rated to withstand
the maximum working pressure of the
unit.
Explosion
hazard.
•NEVER spray flammable liquids or
use pressure washer in areas con-
taining combustible dust, liquids, or
vapors.
•NEVER operate this machine in a
closed building or in or near an
explosive environment.
•Do not remove fuel tank cap or fill
fuel tank while engine is hot or run-
ning (allow engine to cool two min-
utes before refueling). Always fill
the tank slowly.
•Never disconnect the high pressure
discharge hose from the machine
while the system is pressurized. To
depressurize machine, turn power
!
WARNING
!
WARNING
!
WARNING
and water supply off, then press
the gun trigger 2-3 times.
•Never permanently engage the trig-
ger mechanism on the gun.
•Never operate the machine without
all components properly connected
to the machine (handle, gun/wand
assembly, nozzle, etc.).
Equipment
damage.
•ALWAYS turn water supply “ON”
before turning pressure washer
“ON.” Running pump dry causes
serious damage.
•Do not operate the pressure washer
with the inlet water screen
removed. Keep screen clear of
debris and sediment.
•NEVER operate pressure washer
with broken or missing parts. Check
equipment regularly and repair or
replace worn or damaged parts
immediately.
•Use only the nozzle supplied with
this machine.
•Never leave the wand unattended
while the machine is running.
•Never tamper with the engine gov-
ernor or attempt to alter factory
settings. Altering factory settings
could damage the unit and will
void the warranty.
•Always hold gun and wand firmly
when starting and operating the
machine.
•NEVER allow the unit to run with
the trigger released (off) for more
than one minute. Resulting heat
buildup will damage the pump.
•NEVER store the pressure washer
outdoors or where it could freeze.
Freezing temperatures can seriously
damage the pump.
•Release the trigger when changing
from high to low pressure modes.
Failure to do so could result in dam-
age to the nozzle.
Keep hose away
from sharp objects.
Bursting hoses may cause injury.
Examine hoses regularly and replace if
damaged. Do not attempt to mend a
damaged hose.
!
CAUTION
NOTICE
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Safety Guidelines
This manual contains information that
is very important to know and under-
stand. This information is provided for
SAFETY and to PREVENT EQUIPMENT
PROBLEMS. To help recognize this infor-
mation, observe the following symbols.
Danger indicates an
imminently haz-
ardous situation which, if not avoided,
WILL result in death or serious injury.
Warning indicates a
potentially haz-
ardous situation which, if not avoided,
COULD result in death or serious injury.
Caution indicates a
potentially haz-
ardous situation which, if not avoided,
MAY result in minor or moderate injury.
Notice indicates
important informa-
tion, that if not followed, may cause dam-
age to equipment.
NOTE: Information that requires special
attention.
Important Safety Instructions
SAVE THESE INSTRUCTIONS
When using this product, basic precau-
tions should always be followed, includ-
ing the following:
1. Read all instructions before using the
product.
2. To reduce the risk of injury, close
supervision is necessary when the
product is used near children.
3. Follow all safety codes as well as the
Occupational Safety and Health Act
(OSHA).
4. Ensure safety devices are operating
properly before each use. DO NOT
remove or modify any part of the
gun or unit.
5. Know how to stop this product and
bleed pressure quickly. Be thoroughly
familiar with the controls.
6. Stay alert – watch what you are
doing.
7. Do not operate the product when
fatigued or under the influence of
alcohol or drugs.
8. Keep operation area clear of all per-
sons.
9. Do not overreach or stand on unsta-
!
WARNING
NOTICE
!
CAUTION
!
WARNING
!
DANGER
Safety and Warning Information

Pressure Washers
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Pre-Operation
UNPACKING
Remove the equipment and all parts
from the carton. The carton should
contain the following.
•One pressure washer (pump,
engine, cart base).
•One cart handle assembly.
•One basket (not included with all
models).
•One front guard tube (not included
with all models)
•One detergent tank.
•One spray gun.
•One lance with nozzle.
•Spray tips (not included with all
models).
•One high pressure hose.
•One pack of nuts, bolts, and
manuals.
•One bottle of engine oil.
If any parts are missing, DO NOT
RETURN THE UNIT TO THE RETAILER.
Know the unit’s model number (locat-
ed on the serial number tag on the
pressure washer frame) and call 1-800-
330-0712 for replacement parts.
After unpacking the product, inspect it
carefully for any damage that may
have occurred during transit. Make
sure to tighten fittings and bolts
before using the pressure washer.
Do not operate the
unit if it’s damaged
during shipping, handling, or use.
Damage could result in bursting and
cause injury or property damage.
ASSEMBLY
You will need 7/16” and 3/8” wrenches,
and pliers, to assemble.
1. Slide the handle assembly over the
lower legs of the cart base. Use the
standard nut and bolt to secure the
right rear leg. See Figure 1.
!
WARNING
2. An eyelet bolt is included with some
models to secure the engine pull
cord. Use this bolt and nut to secure
the rear leg. Be sure to pull the
starter cord through before tighten-
ing the bolt. See Figure 2.
3. Attach detergent tank to handle with
the 4 hex bolts and 4 nuts provided.
4. Slide clear plastic hose attached to leg
onto black plastic hose barb of deter-
gent tank (See Figure 3).
5. If applicable: attach front guard
tube to base plate with the 4 bolts,
4 washers and 4 nuts provided (See
Figure 4).
Figure 1 - Assemble Handle
Figure 2 -Secure engine pull cord
6. If applicable: attach wire basket to
front guard by pressing the hooks
of the basket over the tube. Then
align front eyelets of basket with
front holes of front guard tube.
Fasten with the 2 bolts, 4 washers,
and 2 nuts provided (See Figure 5).
7. Secure garden hose (not included)
to the inlet connection on pump.
(See Figure 6.)
8. Connect the high pressure hose to the
pump outlet (See Figures 7 and 8).
Figure 6 - Secure garden hose
Figure 3 - Attach suction tube to barb
fitting
Figure 7 - Connect high pressure hose
to pump
Figure 4 - Attach front guard tube (if
applicable)
Figure 5 - Attach basket (if applicable)
Fasten to baseplate
Snap down over tube
Fasten with bolts

TRIGGER SAFETY LATCH
In the engaged position, the trigger safety latch prevents
the gun from being triggered accidentally. Push the latch
fully down to engage it (See Figure 11). Always engage
the trigger safety latch when the unit is not in use.
ACCESSORY STORAGE
Additional accessories can be stored in the back of the
unit. Extra quick connect tips can be stored on the front
upper area of the tank (See Figure 12).
5
Pre-Operation (Continued)
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9. Attach the lance with nozzle to the
gun (See Figure 9).
10. Install quick connect tip, if applicable
(See Figure 10).
Figure 9 - Attach lance to gun
Figure 12 - Accessory storage
Accessory storage
Gun storage
Figure 10 - Quick Connect Tip
Figure 8 - Axial pump hookup
Oil drain
plug
Thermal relief valve
Inlet
Garden hose
High
pressure
hose
Outlet
Pressure
adjustment
knob
Oil vent cap
Chemical injection hose
Figure 11 - Trigger lock
Trigger lock
(not engaged)
Trigger lock
(engaged)

Pressure Washers
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When pulling the
starter rope, make
sure to keep your hand and arm clear
of the engine and cart components.
Never let the starter
rope return by itself.
Doing so could jam the recoil system.
8. If the engine does not start after two
or three pulls or if the rope is hard to
pull, squeeze the gun trigger to
release the pressure that has built up
in the high pressure hose. Repeat
Steps 7 and 8 until the engine starts.
After the engine starts, trigger the gun
3 to 5 times to get any trapped air out
of the system. After the spray becomes
constant, you may need to adjust the
pressure or the spray fan angle for the
optimal cleaning performance needed
(see pages 7, 8 and 9 for cleaning tech-
niques).
PRESSURE ADJUSTMENT
Some units have a pressure adjustment
knob located on the pump (see Figure
13). Turn the knob clockwise to
increase the pressure. Turn the knob
counter clockwise to decrease the pres-
sure. Do not try and force the knob to
turn. The knob may already be at
either the lowest or highest setting.
If there is not a plastic adjustment
knob located on the pump (See Figure
13), then the pressure cannot be
adjusted. The only way to adjust the
pressure is to move closer or further
away from the cleaning surface and
adjust the spray fan angle as shown in
the next section.
NOTICE
!
CAUTION
a. If inlet water pressure is over 100
psi, install a regulating water valve
at the garden hose connection.
b. Do not exceed 100˚ F (38˚ C) inlet
water temperature.
NOTE: The inlet water supply must have a
minimum flow rate of 5 gpm (19 lpm).
4. Turn the water supply ON.
Never run the unit
dry. Be sure the
water supply is completely turned on
before operating the unit.
5. Trigger the gun until water sprays
from the tip indicating that all air is
purged from the system. Set the trig-
ger safety latch.
6. a. Honda Engines:Open the fuel
shutoff valve by turning the knob
counterclockwise until it stops.
Close the choke (if engine is cold)
by moving the choke lever fully
to the right. Move the throttle, if
equipped, fully to the right to
the Run or Rabbit position.
b. Briggs and Stratton Engines:
Push the primer bulb three or four
times (if equipped). Close the choke
(if engine is cold) by moving the
choke lever fully to the left. Move
the throttle fully to the left to the
Run or Rabbit position.
c. Robin Engines: Open the fuel
shutoff valve by turning the lever
to the downward position. Close
the choke (if the engine is cold) by
moving the choke lever fully to the
left. Move the throttle fully to the
left to the Run or Rabbit position.
7. Start the engine.
If the engine is cold, completely close
the engine choke.
If the engine is warm, leave the
choke open or just partially closed.
Unlock the trigger safety latch on the
gun. Grasp the starter rope and brace
one foot on the chassis. While
squeezing the trigger on the gun,
pull the starter rope rapidly and firm-
ly. Continue holding the rope as it
returns. Repeat these steps until the
engine starts. In cool weather, the
choke may have to be kept closed for
10 to 30 seconds to keep the engine
running. Otherwise, open the choke
as soon as the engine starts.
NOTICE
6
The following cleaning procedure will
help you organize your cleaning task and
ensures that you will achieve the best
results in the shortest amount of time.
Remember to use the spraying / cleaning
techniques mentioned in the following
section.
Before starting a pressure washer clean-
ing job, prepare the surface you intend to
clean. Clear furniture from the area and
make sure that all windows and doors
are closed tightly. Also, protect all plants
and trees near the cleaning area with a
drop cloth. A covering ensures that your
plants won’t be sprayed by the deter-
gents.
ALWAYS use this start up procedure to
ensure that the unit is started safely and
properly.
If water has frozen
in the pressure
washer, thaw the pressure washer in a
warm room before starting. DO NOT
pour hot water on or into the pump;
internal parts will be damaged.
1. Check engine oil levels. Add oil as nec-
essary.
NOTE: Some units are equipped with a
low oil sensor that shuts the engine off if
the oil level falls below a certain level. If
the unit stops unexpectedly, check both
the oil and fuel levels. Check the oil level
each time you refuel the unit.
2. Check fuel level.
DO NOT refuel a
hot engine.
Refueling a hot engine could cause a
fire. Use only fresh, clean regular or
unleaded gasoline. Close the fuel shut-
off valve during refueling.
3. Attach a garden hose to the inlet side
of the pump and connect it to the
water supply. Use a hose with an I.D.
of 5/8” and a length of 50 ft. (15 m)
or less.
Some local plumb-
ing codes require
backflow prevention when connecting
to a fresh water supply. Install a back-
flow preventer upstream from the
pump if necessary.
NOTICE
!
WARNING
NOTICE
Operation
1. Surface Preparation
2. Start Up
3. Initial High Pressure Rinse
Figure 13 - Axial pump pressure adjust-
ment

ADJUSTING THE SPRAY FAN ANGLE
Your unit is either equipped with a
adjustable fan nozzle or quick connect
tips that have a range of spray fan
angles.
If equipped with the adjustable fan
nozzle, the spray end of the lance can
be rotated to have a 0onarrow high
impact stream to a 60owide fan spray
(See Figure 14).
If equipped with the quick connect tips,
the tips can be switched out from a 0o
narrow high impact stream to a 65o
wide fan spray.
The color of the tip shows what spray
angle it is:
Red – 0o– Maximum Duty
Yellow – 15o– Heavy Duty
Green – 25o– General Duty
White – 40o– Light Duty
Black – 65o– Low Pressure
Detergent
Figure 15 - Installing Quick Connect Tip
7www.chpower.com
A narrow stream has high impact force
on the cleaning surface and results in
maximum deep cleaning in a concen-
trated area. However, this narrow high
impact spray can damage some sur-
faces, so use it cautiously.
A wide fan pattern will distribute the
impact of the water over a larger area
resulting in excellent cleaning action
with reduced risk of surface damage.
Clean large surface areas quickly using
a wide fan pattern.
ANGLE TO THE CLEANING SURFACE
When spraying water against a surface,
you can generate maximum impact by
striking the surface head on. However,
this type of impact can cause dirt parti-
cles to embed in the surface and can
prevent the desired cleaning action.
The optimum angle for spraying water
against a cleaning surface is 45 degrees.
Spray water against a surface at a 45
degree angle to achieve the most benefi-
cial impact force and to efficiently
remove debris.
DISTANCE FROM CLEANING SURFACE
The distance between the spray nozzle
and the cleaning surface is another fac-
tor that affects the impact force of the
water. The impact force of the water
increases as the nozzle is moved closer to
the surface.
HOW TO AVOID DAMAGING SURFACES
Damage to cleaning surfaces occurs
because the impact force of the water
exceeds the durability of the surface. You
can vary the impact force by controlling
the nozzle’s fan pattern, the nozzle’s
angle to the cleaning surface, and the
nozzle’s distance from the cleaning sur-
face. Never use a narrow high impact
stream or a Turbo/rotary nozzle on a sur-
face that is susceptible to damage. Avoid
spraying windows with a narrow high
impact stream or turbo nozzle. Doing so
may break the window. The most sure
way to avoid damaging surfaces is to fol-
low these steps:
1. Before triggering the gun, adjust the
nozzle or quick connect tip to a wide
fan pattern.
2. Place the nozzle approximately 4-5
feet away from the cleaning surface.
Then hold the nozzle at a 45 degree
angle to the cleaning surface. Trigger
the gun.
3. Vary the fan pattern spray angle and
the distance to the cleaning surface
until optimum cleaning efficiency is
achieved without damaging the sur-
face.
Operation (Continued)
Figure 14 - Adjusting nozzle for fan
pattern
Nozzle
Figure 16 - Narrow high impact stream
Figure 17 - Wide fan pattern
Figure 18 - Optimum angle to cleaning
surface
Quick connect tip
Pull back collar
Quick connect tip

Pressure Washers
TURBO NOZZLE (NOT INCLUDED WITH
ALL MODELS)
A turbo nozzle, sometimes referred to as
a rotary nozzle, can significantly reduce
cleaning time. The turbo nozzle combines
the power of a narrow high impact
stream with the efficiency of a 25 degree
fan pattern. The turbo nozzle swirls a nar-
row high impact stream into a cone
shape to clean a larger area.
Since a turbo nozzle
uses a narrow high
impact stream, only use a turbo lance in
applications where the cleaning surface
cannot be damaged by narrow high
impact spray. The turbo nozzle is NOT
adjustable and cannot be used to apply
detergent.
USE THE INSTRUCTIONS APPROPRIATE
FOR MODEL PURCHASED
NOTE: Use only detergents formulated
for pressure washers.
NOTE: Test detergent in an inconspicuous
area before use.
Never slide the
nozzle from low to
high pressure or from high to low pres-
sure when the gun is triggered.
Never replace quick
connect tip when gun
is triggered.
DETERGENTS
The use of detergents can dramatically
reduce cleaning time and assist in the
removal of difficult stains. Many deter-
gents are customized for pressure washer
use on specific cleaning tasks. Pressure
washer detergents are as thick as water.
Using thicker detergents – like dish soap –
will clog the chemical injection system
and prevent the application of the deter-
gent.
Once applied to a cleaning surface, deter-
gents take time to break down dirt and
grime. Detergents work best when
applied at low pressure.
You can effectively clean surfaces by com-
bining the chemical action of detergents
with high pressure rinses. On vertical sur-
faces, apply the detergent starting at the
bottom and work your way upward. This
method prevents the detergent from slid-
ing down and causing streaks. Begin high
pressure rinsing at the bottom and work
your way upward. On particularly tough
!
WARNING
NOTICE
NOTICE
stains, use a brush in combination with
detergents and high pressure rinsing.
A. MODELS WITH DETERGENT TANKS
Some gasoline powered units are
equipped with detergent tanks.
If your unit has a detergent tank:
1. Follow manufacturer’s label direc-
tions for mixing correct concentra-
tions of soap/detergents. The soap
detergent to water ratio through
the pump is approximately 10% (1
to 10).
2. Pour detergent into the detergent
tank. The tank capacity is 1.5 gal-
lons.
3a. Place hand around the 3.5” spraying
end section of the lance (the section
that turns from left to right). Pull
firmly and quickly away from you.
(NOTE: Do not adjust lance while
spraying.) The lance will extend 1/2”
and be in low pressure (see Figure
20). Soap can only be drawn in low
pressure.
3b. For units with quick connect tips:
use the black 65o quick connect
spray tip (See Figure 19).
8
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Operation (Continued)
B. MODELS WITHOUT DETERGENT
TANKS
Some gasoline powered units are not
equipped with detergent tanks.
If your unit does not have a detergent
tank:
1. Follow manufacturer’s label direc-
tions for mixing correct concentra-
tions of soap/detergents. The soap
detergent to water ratio through
the pump is approximately 10% (1
to 10).
2. Insert the filter end of the clear
plastic detergent tube into the
detergent container.
3a. Place hand around the 3.5” spray-
ing end section of the lance (the
section that turns from left to
right). Pull firmly and quickly away
from you. (NOTE: Do not adjust
lance while spraying.) The lance will
extend 1/2” and be in low pressure
(See Figure 20). Soap can only be
drawn in low pressure.
3b. For units with quick connect tips:
use the black 65o quick connect
spray tip (see Figure 19).
GENERAL CLEANING TIPS
1. Apply the detergent so that it thor-
oughly covers the cleaning surface.
Apply the detergent from bottom to
top to prevent the detergent from
sliding down and streaking. Wait a
couple of minutes for the detergent
to break down the dirt and grime.
Use a brush to lightly scrub heavily
4. Detergent Application
Low Pressure
High Pressure
Figure 20 - Adjusting nozzle for pressure
Nozzle
Figure 19 - Quick Connect Tip

9
Operation (Continued)
soiled areas. Never allow the deter-
gent to dry on the cleaning surface.
2a. To rinse or to return the nozzle to
high pressure, release the trigger and
slide the nozzle to the high pressure
setting.
2b.For units with quick connect tips:
replace black 65o tip with another
color tip.
Never make the
nozzle pressure
adjustment when the gun is triggered.
Adjusting the high-low nozzle when the
gun is triggered can result in damage to
the seals in the nozzle.
Never replace quick
connect tip when
gun is triggered.
3. After using detergents, flush the suc-
tion system by placing the detergent
suction tube into a bucket of clean
water or rinse out tank.
You can control the cleaning power of
your pressure washer in two ways:
1. Adjust the spray pattern at the noz-
zle. Choose the widest pattern possi-
ble for spraying when starting the
job and adjust the pattern to a nar-
rower angle until you find a suitable
pattern.
2. The easiest way to regulate the
cleaning power of your pressure
washer is by changing the distance
from the surface you are cleaning.
Begin spraying with a wide fan pat-
tern while standing several feet from
the surface. Slowly move closer to the
object you are cleaning, adjusting the
spray pattern as necessary, until you
find the most effective cleaning tech-
nique.
NOTE: Some units also may have a reg-
ulator knob on the pump that can
adjust the pressure (if so equipped).
The final rinse should start at the bottom
and work upward. Make sure that you
thoroughly rinse the surface and that you
remove all detergent.
!
WARNING
NOTICE
5. Cleaning Power
1. Be sure all detergent is flushed from
system.
2. Turn the engine OFF.
3Turn the water supply OFF.
4. After the engine and water supply are
turned off, trigger the gun to depres-
surize the system.
NEVER turn the
water supply off
before turning the engine/motor off.
Serious damage could occur to the pump
and/or engine/motor.
NEVER disconnect
the high pressure
discharge hose from the machine while
the system is pressurized. To depressurize,
turn engine/motor off, turn water supply
off and squeeze gun trigger 2-3 times.
5. After each use, wipe all surfaces of the
pressure washer with a clean, damp
cloth.
•Do not store the pressure washer out-
doors.
•Do not store the pressure washer
where it might freeze unless it has
been properly winterized (see page 9,
third column).
LONG TERM STORAGE INSTRUCTIONS
(MORE THAN 30 DAYS IN STORAGE)
1. Remove fuel from the tank and run the
pressure washer in a normal operating
mode until the engine stops from a
lack of fuel. Normal operating mode
means actually spraying water from the
gun while the engine is running.
Alternate method –Add fuel stabiliz-
er to gas in the tank and run in nor-
mal operating mode for at least five
minutes.
2. Stop the engine, turn off the water
supply, and trigger the gun to release
pressure in the high-pressure hose.
3. Disconnect the water supply and high
pressure hose from the pump.
4. Allow the engine to cool.
5. Disconnect the spark plug wire and
remove the spark plug.
6. Pour 1/2 oz. of engine oil into the
spark plug hole.
!
CAUTION
NOTICE
Never pull the
starter rope on the
engine when the spark plug is removed
unless the spark plug hole is covered. Fuel
vapor from the hole can ignite by a spark.
7. Place a rag over the spark plug hole
and slowly pull the starter rope several
times to distribute the oil.
WINTERIZING INSTRUCTIONS
1. Follow and complete the Long Term
Storage Instructions on Page 9.
2. Disconnect the spark plug wire.
3. Disconnect the high pressure hose
from the pump.
4. Insert a 12” to 14” piece of garden
hose into the pump inlet.
5. Place a funnel in the other end of the
garden hose.
Read the
manufacturer’s
instructions for safe handling and dis-
posal of RV antifreeze.
6. Pour approximately 6 oz. of RV
antifreeze into the funnel.
NOTICE
!
WARNING
8. Storage
6. Final Rinse
7. Shutdown
PRESSURE RELIEF
PROCEDURE
To reduce the risk of bodily
injury or property damage,
always follow this procedure
whenever spraying is stopped,
when work is completed, and
before checking or repairing any
part of the system.
1. Engage the trigger safety latch.
2. Turn the unit off.
3. Remove the ignition cable from
the spark plug.
4. Shut off the water supply.
5. Disengage the trigger safety
latch and trigger the gun to
relieve pressure.
6. Re-engage the trigger safety
latch.
7. Before overnight storage, long
term storage, or transporting
unit, disconnect the water supply
and turn off the fuel supply
valve.
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Pressure Washers
10
Maintenance
Observe regular maintenance intervals
to ensure maximum performance and
life from the pressure washer. Refer to
the schedule for recommended mainte-
nance. If you operate the pressure
washer in dusty conditions, perform
maintenance checks more often.
ENGINE OIL CHANGING INSTRUCTIONS
Before tipping the
engine or equipment
to drain oil, drain fuel from the fuel tank.
NOTE: Change oil while the engine is
cool.
1. Disconnect the spark plug wire from
the spark plug.
2. Locate and remove the engine oil
drain plug (see Figure 21).
3. Drain old oil.
4. Replace the drain plug and set the
unit upright.
5. Refill the unit with new oil of a rec-
ommended type and quantity. Fill
the unit to the proper level shown
on the dipstick (if provided).
Otherwise, fill the unit to the top of
the oil filler neck.
!
CAUTION
Figure 21 - Oil Drain Locations (also see Figure 22)
Plug on either side of
engine base
7. Pull the starter rope several times until
the RV antifreeze comes out of the
pump outlet.
8. Disconnect the high pressure hose
from the gun and drain the hose. Hold
the gun and lance in a vertical position
and squeeze the trigger to drain the
water out.
TIPS FOR EXTENDING THE LIFE OF
YOUR PRESSURE WASHER
1. Never operate the unit without water.
2. Your pressure washer is not meant to
pump hot water. Never connect your
pressure washer to a hot water supply
as it will significantly reduce the life of
the pump.
Operation (Continued)
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3. Running the unit for more than one
minute without spraying water causes
heat to build up in the pump. Running
the unit without spraying water can
damage pump components.
4. Release the trigger prior to switching
the lance between high and low pres-
sure. Failure to do so may reduce the
life of the o-rings in the lance.
Figure 22 - Oil drain and fill locations
Oil drain Oil fill

Engine Oil Type SAE 10W-30
SAE 30W (Above 60˚ F)
Engine Oil Capacity
Briggs and Stratton engines 20 fl. oz.
Honda engines 18 fl. oz.
Robin engines 20 fl. oz.
Engine Fuel Capacity
Briggs and Stratton engines 0.75 gal
Honda engines 0.46 gal
Robin engines 0.95 gal
Pump Oil Type
Horizontal axial pumps Special. See Parts List.
Pump Oil Capacity
Horizontal axial pumps 4.5 fl. oz.
Pump Detergent Suction
Water to detergent ratio 10 to 1 (10% detergent)
Water Supply Requirements
Minimum inlet pressure 20 psi
Maximum inlet pressure 100 psi
Maximum inlet temperature 100˚ F
Minimum inlet flow rate 5 gpm
Inlet garden hose size 5/8” I.D.
Maximum inlet garden
hose length 50 ft
11
Daily
After first 5 hours of
operation
Every 25 hours of
operation
Every 50 hours of
operation
Each 100 hours of
operation or every 3
months
• Check water inlet screen and filter.
• Check engine oil levels. Fill as necessary.
• Check gasoline level. Fill as necessary.
• Change engine break-in oil. Use SAE30 or 10W-
30 detergent oil.
• Change oil if operating under heavy load or
high ambient temperature.
• Remove and clean foam pre-cleaner or foam air
filter (if applicable). Wash with water and mild
detergent. Dry thoroughly. Rub with oil and
squeeze to distribute oil.
• Change oil.
• Replace spark plug.
• Clean or replace paper air cleaner cartridge. Tap
gently to remove dirt.
• Change engine oil.
Maintenance Schedule Action needed
Maintenance Schedule
Horizontal Oriented Pressure Washers
Technical and Consumer Information
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CHECKING PUMP OIL AND PUMP OIL
CHANGING
NOTE: The oil in the pump is a special
synthetic type and must only be
replaced by the exact same type. See
the pump parts lists for the type of oil
to order.
Some pumps have an oil sight glass to
check the pump oil level. The oil level
should be at about the middle of the
sight glass. It may be difficult to see the
oil, so tilting the unit some may help to
find the level line of the oil.
If the pump does not have a sight glass,
then the oil level cannot be checked.
Normally, it is not necessary to change
the oil in the pump.
If there is a noticeable amount of oil
that is leaking from the pump, then the
oil seals may be worn or damaged and
the unit should be taken to an autho-
rized Campbell Hausfeld Service Center
for repair.
Maintenance (Continued)

Pressure Washers
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Troubleshooting Chart - Gasoline Powered Pressure Washers Only
Symptom Possible Cause(s) Corrective Action(s)
Engine will not start or is hard
to start
Engine misses or lacks power
Low pressure and/or pump
runs rough
Water leakage from under
pump manifold
Water in pump crankcase
(milky oil)
Frequent or premature failure
of the pump water seals
Strong surging at the inlet
and low pressure
Oil leakage between the
engine and the pump
Fluctuating pressure
Pressure drops after period of
normal use
Pump noisy / pump runs
rough
1. No gasoline in fuel tank or carburetor
2. Low oil
3. Start/Stop switch in stop position
4. Water in gasoline or old fuel
5. Dirty air cleaner filter
6. Spark plug dirty, wrong gap or wrong type
7. Spray gun closed
8. Other causes
1. Partially plugged air cleaner filter
2. Spark plug dirty, wrong gap or wrong type
1. Worn or wrong size tip
2. Inlet filter on pump clogged
3. Worn water seals, abrasives in water, or natural wear
4. Fouled or dirty inlet or discharge valves
5. Restricted inlet
6. Worn inlet or discharge valves
7. Leaking high pressure hose
8. Pump drawing in air
9. Unloader valve seat faulty or worn
Worn water seals
1. Humid air condensing inside crankcase
2. Oil seals leaking
3. Water seals leaking
1. Scored damaged or worn plungers
2. Abrasive material in the fluid
3. Inlet water temperature too high
4. Overpressurizing pump
5. Excessive pressure due to partially plugged or
damaged tip
6. Pump running too long without spraying
7. Pump running dry
Foreign particles in the inlet or discharge valve or worn
inlet and/or discharge valves
Worn oil seals and/or o-ring
1. Low engine oil
2. Valve worn, dirty or stuck
3. Pump drawing in air
4. Tip clogged
1. Worn pump water seals
2. Nozzle worn
3. Valve worn, dirty or stuck
4. Unloader valve seat worn or dirty
5. Nozzle in low PSI position
1. Pump drawing in air/low water supply
2. Valves dirty or worn
3. Worn bearings
4. Water too hot
1. Fill the tank with gasoline,open fuel shut off valve.
Check fuel line and carburetor
2. Check oil level. Fill if necessary
3. Move switch to start position
4. Drain fuel tank and carburetor. Use new fuel and dry
spark plug
5. Remove and clean or replace
6. Clean, adjust the gap, or replace
7. Trigger spray gun
8. See engine owner’s manual
1. Remove and clean or replace
2. Clean, adjust the gap, or replace
1. Replace with tip of proper size
2. Clean. Check more frequently
3. Check filter. Replace water seals. See service center
4. Clean inlet and discharge valve assemblies. Check filter
5. Check garden hose, may be collapsed or kinked. Check
inlet water flow
6. Replace worn valves
7. Replace high pressure hose
8. Ensure hoses and fittings are tight
9. Check and replace
Install new water seals. See service center
1. Change oil as specified in maintenance schedule
2. Install new oil seals. See service center
3. Install new water seals. See service center
1. Install new plungers. See service center
2. Install proper filtration on pump inlet plumbing
3. Check water temperature; may not exceed 100oF.
4. Do not modify any factory set adjustments.
5. Clean or replace tip.
6. Never run pump more than 2 minutes without spraying
7. Do not run pump without water
Clean or replace valves. See service center
Replace oil seals and/or o-ring. See service center
1. Add oil.
2. Check and replace
3. Ensure hoses and fittings are tight. Purge air from gar-
den hose
4. Check or replace
1. Check and replace
2. Check and replace
3. Check, clean or replace
4. Check, clean or replace
5. Pull back nozzle to high pressure position
1. Ensure fittings are tight. Increase water pressure
2. Check, clean or replace
3. Check and replace
4. Reduce temperature below 100oF
12
CONTINUED ON NEXT PAGE

13
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Service Record
Date Maintenance performed Replacement components required
Notes
Pressure washer will not spray
detergent 1. Nozzle not pushed up far enough
2. Clog, kink, or hole in detergent suction hose
3. Hose length too long
4. Lance not functioning properly
5. Not using quick connect detergent tip
1. Push nozzle forward as far as it will go.
2. If clean, unkink or replace hose.
3. Use only hose length provided with initial purchase of
pressure washer. Detergent suction will not function if
more than once section of hose is attached to unit.
4. Remove lance from gun. If detergent is dispensed
through gun, the lance must be replaced. If not deter-
gent is dispensed through gun, remove 1” tapered
detergent barb from pump. Clean the barb, and make
sure that ball and spring are properly aligned with
tapered portion of the spring facing the ball. The ball
should be on top of the spring.
5. Use black quick connect detergent tip.
Troubleshooting Chart - Gasoline Powered Pressure Washers Only
Symptom Possible Cause(s) Corrective Action(s)

Pressure Washers
14
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Limited Warranty
1. DURATION: From the date of purchase by the original purchaser as follows: Standard Duty - One Year, Serious Duty - Two
Years, Extreme Duty - Three Years, Maxus Brand Serious Duty - Three Years, Maxus Brand Extreme Duty - Five Years.
2. WHO GIVES THIS WARRANTY (WARRANTOR): Campbell Hausfeld / Scott Fetzer Company, 100 Production Drive, Harrison,
Ohio, 45030, Telephone: [phone]
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: Any Campbell Hausfeld Pressure Washer supplied or manufac-
tured by the Warrantor.
5. WHAT IS COVERED UNDER THIS WARRANTY: Substantial defects on material and workmanship which occur within the dura-
tion 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. If this pressure washer is used for commercial, industrial or
rental purposes, the warranty will apply for ninety (90) days from the date of purchase. Some States do not allow limita-
tion 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 pres-
sure 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. 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.
G. 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 tips.
2. Motor brushes (Electric models only).
3. Cosmetic defects that do not interfere with functionality.
4. Rusted components.
5. Pump wear or valve damage caused by using improper oil, oil contamination or by failure to follow proper oil mainte-
nance guidelines.
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.