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.

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

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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.)

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

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.

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

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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

Figure 9 - Trigger unlocked

Engaged

Disengaged

Pre-Operation (Continued)

7. Install quick connect tip (See Figure 7).

Operation

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 trigger safety latch.

6. Open the fuel shutoff valve by

turning the lever to the right/“ON” 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. Turn the ON/OFF swirch to the “ON” position.

1. Check engine oil levels. Add oil as necessary.

2. Check fuel level. Add unleaded gasoline (rated 86 octane or higher) as required.

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 shutoff 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 internal diameter (I.D.) of 5/8 in. (1.58 cm) and a length of 50 ft. (15 m) or less.

Some local

plumbing codes require backflow prevention when connecting to a fresh water supply. Install a backflow preventer upstream from the pump if necessary.

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.

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 cleaning 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 detergents.

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. Surface Preparation

2. Start Up

Operating Instructions and Parts Manual

Figure 10 - Throttle

Figure 8 - Trigger locked

Figure 7 - Quick Connect Tip

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TRIGGER SAFETY LATCH

In the engaged position, the trigger safety latch prevents the gun from being triggered accidentally. Push the latch fully

up to engage it (See Figure 8 and 9). Always engage the trigger safety latch

when the unit is not in use.

7. Start the engine: 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 firmly. Continue holding the rope as it returns. Repeat these steps until the engine starts.

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.

Spray the cleaning surface with water to clear off any dirt or grime that may have collected on the surface. Doing so allows the detergent to attack the deep down dirt that has worked its way into the cleaning surface. 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.

PRESSURE ADJUSTMENT

Please refer to your CAT pump manual for specific pressure adjustment details.

ADJUSTING THE SPRAY FAN ANGLE

Five quick connect tips are included with this pressure washer. The tips have a range of spray fan angles, ranging from 0°, narrow high impact, to a 65° wide fan spray.

Pressure can also be adjusted by moving closer or further away from the cleaning surface and by adjusting the spray fan angle as shown.

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 particles 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 beneficial impact force and to efficiently remove debris.

DISTANCE FROM CLEANING SURFACE

The distance between the spray tip and the cleaning surface is another factor that affects the impact force of the water. The impact force of the water increases as the tip 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 spray tip angle to the cleaning surface and the distance from the cleaning surface and by changing the spray tip. NEVER use a narrow high impact stream on a surface that is susceptible to damage. Avoid spraying windows with a narrow high impact stream. Doing so may break the window. The most sure way to avoid damaging surfaces is to follow these steps:

1. Before triggering the gun, make sure the quick connect tip you are using is appropriate for the application.

2. Place the spray tip approximately 45 feet (1,22-1,52 m) away from the cleaning surface. Then hold the lance and spray tip 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 surface.

Operation (Continued)

3. Initial High Pressure Rinse

Figure 12 - Narrow high impact stream

Figure 13 - Wide fan pattern

Figure 14 - Optimum angle to cleaning surface

Figure 11 - Camshaft pump pressure adjustment

Counterclockwise: Lower pressure

Clockwise: Higher pressure

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PW2770, PW3270, and PW4070

Operating Instructions and Parts Manual

NOTE: Use only detergents formulated

for pressure washers.Test detergent in an inconspicuous area before use.

DETERGENTS

The use of detergents can dramatically reduce cleaning time and assist in the removal of difficult stains. Many detergents 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 detergent.

Once applied to a cleaning surface, detergents take time to break down dirt and grime. Detergents work best when applied at low pressure.

You can effectively clean surfaces by combining the chemical action of detergents with high pressure rinses. On vertical surfaces, apply the detergent starting at the bottom and work your way upward. This method prevents the detergent from sliding down and causing streaks. Begin high pressure rinsing at the bottom and work your way upward. On particularly tough stains, use a brush in combination with detergents and high pressure rinsing.

1. Follow manufacturer’s label directions for mixing correct concentrations of soap/detergents. The soap detergent to water ration through the pump is approximately 10% (1 to 10).

2. Insert the filter end of the clear plastic detergent tube into the detergent container.

3. Use the BLACK 65° quick connect spray tip.

4. Adjust the detergent injection flow by turning the collar of the injector. Turning collar clockwise increases detergent flow.

GENERAL CLEANING TIPS

1. Apply the detergent so that it thoroughly 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 soiled areas. NEVER allow the detergent to dry on the cleaning surface.

2. To rinse: replace black 65° spray tip with another color tip.

Never replace quick

connect tip when gun is triggered. Always engage trigger lock on gun before removing or installing quick connect tips.

3. After using detergents, flush the

suction system by placing the detergent suction tube into a bucket of clean water and spraying with the black spray tip.

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 pattern 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 technique.

NOTE: The unit also has a pressure adjustment knob on the pump that can adjust the pressure.

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.

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. Shut off the water supply.

4. Disengage the trigger safety latch and

trigger the gun to relieve pressure.

5. Re-engage the trigger safety latch.

6. When checking or repairing unit,

remove the ignition cable from the spark plug.

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Operation (Continued)

7. Before overnight storage, long term storage, or transporting unit, disconnect the water supply and turn off the fuel supply valve.

1. Be sure all detergent is flushed from system.

2. Turn the engine OFF.

3 Turn the water supply OFF.

4. After the engine and water supply are turned off, trigger the gun to depressurize 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

outdoors.

• Do not store the pressure washer

where it might freeze unless it has been properly winterized.

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 stabilizer to gas in the tank and run in normal 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.

4. Detergent Application

5. Cleaning Power

6. Final Rinse

7. Pressure Relief Procedure

8. Shutdown

9. Storage

Operation (Continued)

5. Disconnect the spark plug wire and remove the spark plug.

6. Pour 1/2 oz. of engine oil into the spark plug hole.

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 above.

2. Disconnect the spark plug wire.

3. Disconnect the high pressure hose

from the pump.

4. Insert a 12 in. to 14 in. 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 disposal of RV antifreeze.

6. Pour approximately 6 oz. of RV

antifreeze into the funnel.

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.

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.

Maintenance

Observe regular maintenance intervals to ensure maximum performance and life from the pressure washer. Refer to the schedule for recommended maintenance. 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 15).

3. Drain old oil.

4. Replace the drain plug and set the unit upright.

5. Refill the unit with new oil of a recommended type and quantity. Fill the unit to the bottom edge of the oil fill neck.

PUMP OIL CHECKING/ CHANGING INSTRUCTIONS

Please refer to provided CAT Pump Speification page provided with your Pressure Washer for details.

Figure 15 - Oil drain and fill locations

Oil Drain

Oil Fill

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PW2770, PW3270, and PW4070

+ 19 hidden pages

Campbell Hausfeld PW3270, PW2770, PW4070 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual