Campbell Hausfeld PW2120, PW2420, PW2705, PW2458 Product Manual

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.

BUILT TO LAST

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 win­terized (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 WASH­ER 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, ani­mal, or yourself.

• Always wear safety glasses or gog-

gles and protective equipment
(hearing protection, gloves, rubber
boots, protective clothing) when
operating or performing mainte­nance.

• 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 pres­surized 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 con­taining 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 run­ning (allow engine to cool two min­utes 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

and water supply off, then press
the gun trigger 2-3 times.

• Never permanently engage the trig­ger 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 gov­ernor 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 dam­age 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.

3

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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.

NOTE: Information that requires special
attention.

Important Safety Instructions

SA

VE THESE INSTRUCTIONS

When using this product, basic precau­tions should always be followed, includ­ing 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-

Safety and Warning Information

!

DANGER

!

WARNING

!

CAUTION

NOTICE

!

WARNING

!

WARNING

!

WARNING

!

WARNING

NOTICE

!

CAUTION

Pressure Washers

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4

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 (locat­ed on the serial number tag on the
pressure washer frame) and call 1-800­330-0712 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.

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 tighten­ing 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 deter­gent 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

!

WARNING

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)