Campbell Hausfeld PW3270, PW2770, PW4070 User Manual

Gasoline Powered
Pressure Washers

Product Manual PW2770, PW3270 and PW4070

Carefully read and understand these instructions

before operating your pressure washer.

© 2008 Campbell Hausfeld/ Scott Fetzer

IN469600AV 9/08

Frequently Asked Questions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Getting to Know Your Pressure Washer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Safety and Warning Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Assembly and Pre-Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 6

Startup, Operation, Shutdown, and Storage . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 9

Maintenance and Technical Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 10

Service Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Replacement Parts Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - 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.

Model PW2770

Model PW3270

Model PW4070

Operating Instructions and Parts Manual

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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. The engine does not come with oil.

2. Turn the water on, then squeeze the trigger on the gun to make sure the water will flow smoothly out of the tip.

3. Put the engine throttle control fully to the left, in the “Fast/Start” position. Set the shut off switch to “ON.”

4. Set the choke fully to the left. Set the fuel valve lever fully to the right in the “ON” position.

5. Pull the trigger (to relieve any back pressure in the pump) while pulling the starter cord.

What type of oil do I use?

Engine: The engine DOES NOT COME FILLED WITH

OIL. See Page 10 for engine oil types and quantities.

Pump: The pump comes filled with the correct amount of oil and should not need changing or filling. Refer to Pages 9 and 10 of

this manual for oil changing instructions, oil types and quantities.

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 quick connect tip in place? (See Page 5 and 6).

• Is the inlet filter screen free of debris? Check and remove debris if needed.

How do I get high pressure?

• Use any color tip except black. The black tip is only 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 pump, insert the other end into your detergent.

2. Install the black spray tip to apply low pressure detergent.

Why doesn’t the pressure washer apply detergents with high pressure?

Detergents “bounce” off cleaning surfaces as fast as they are applied. The pressure washer’s features allow for a detergent to be
drawn while in low pressure mode only. By applying detergent at low pressure, the effect of “bouncing” is reduced. Also, detergents
are only effective when time is allowed for them to work on the surface of whatever is being cleaned. After applying the detergent,
wait 1-3 minutes while it works, and then proceed to 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.

5. Follow proper storage and winterizing instructions found on pages 8 and 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 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 1-800-330-0712 (U.S.A.)

2

3

Getting to Know Your Pressure Washer

1 Fuel Tank
2 Tip Holder with Spray Tips
3 Gun with Trigger
4 Engine switch - On/Off
5 Engine Oil Fill
6 Serial Number/Product Decal
7 Lance
8 Pressure Adjusting Knob

9 Injection Tube
10 Connection for High Pressure Hose
11 Inlet Connection for Garden Hose
12 Fuel Valve - On/Off
13 Muffler
14 Throttle Control
15 Choke

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PW2770, PW3270, and PW4070

9

14

8

10

11

13

12

15

6

2

3

4

7

5

1

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
persons.

9. Do not overreach or stand on
unstable 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

goggles 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

manufacturer’s label
recommendations for proper use of
detergents. Always protect eyes,
skin, and respiratory system from
detergent use.

Do not use pressure

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.

4

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

SAVE THESE INSTRUCTIONS

CALIFORNIA PROPOSITION 65

This product or its

power cord may
contain chemicals known to the State
of California to cause cancer and birth
defects or other reproductive harm.
Wash hands after handling.

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.

Safety and Warning Information

Operating Instructions and Parts Manual

www.chpower.com

5

Pre-Operation

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.

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 spray gun and quick connect

lance

• Five spray tips

• One high pressure hose

• One pack of nuts, bolts, and

manuals

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 1­800-330-0712 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

Use 1/2 in. wrench to assemble the
pressure washer.

1. Slide the handle assembly over the

lower legs of the cart base. Use the
(supplied) standard nuts and bolts
to secure the handle to the legs
(See Figure 1).

2. Slide clear plastic detergent hose

onto brass hose barb (See Figure 2).

3. Insert quick connect spray tips into
rubber holders on front of the placard.
(See Figure 3).

4. Secure garden hose (not included) to
the inlet connection on pump (See
Figure 4).

Figure 1 – Assemble Handle

Figure 2 – Attach suction tube to barb
fitting

5. Connect the high pressure hose to the
pump outlet (See Figures 4 and 5).

6. Attach the lance to the gun
(See Figure 6).

Figure 3 - Insert spray tips into the
holder

Figure 4 - Pump hook up

Detergent hose/

Chemical tube

Pump
outlet

High
pressure
hose

Garden hose

Pump inlet

Thermal
relief valve

Hose barb

Pressure adjustment knob

Figure 5 - Connect High pressure hose
to pump

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PW2770, PW3270, and PW4070

Figure 6– Attach lance to gun