DEWALT DXPW3123 3100 PSI Honda Cold Water Gas Pressure Washer Instruction Manual

June 4, 2024
Dewalt

DEWALT LOGO DXPW3123 3100 PSI Honda Cold
Water Gas Pressure Washer
Instruction Manual
WWW.DEWALT.COM

NOTE: Photographs and line drawings used in this manual are for reference only and do not represent a specific model.

If you have questions or comments, contact us.
1-877-362-4271

NOTE: Photographs and line drawings used in this manual are for reference only and do not represent a specific model.DEWALT DXPW3123 3100 PSI Honda
Cold Water Gas Pressure Washer

Components

1 High-Pressure Pump
2 Engine
3 High-Pressure Hose
4 Spray Gun
5 Quick-Connect Spray Wand
6 Detergent Siphon Hose (Fig. H)| 7 Handle
8 Frame
9 Pump Outlet
10 Pump Inlet
11 Quick Connect Nozzles
12 Detergent Siphon Hose OR Detergent Tank:
---|---

DEWALT DXPW3123 3100 PSI Honda Cold Water Gas Pressure Washer -
FIG1 WARNING: To reduce the risk of injury, read the pressure washer instruction manual and the engine instruction manual before operating the pressure washer.

A  install the handle
Slide the handle assembly onto the frame, align holes, insert saddle bolts, and secure it in place with knobs. Tighten until snug. B Add/Check Oil
The engine is shipped without oil. Before starting the engine, add the oil provided.
Check the oil level prior to each use. Refer to Engine Owner’s Manual for the complete procedure. C Add gasoline
In a well-ventilated outdoor area add fresh, high-quality, unleaded gasoline with a pump octane rating of 86 or higher. Do not overfill. Wipe up spilled fuel before starting the engine. Refer to Engine Owners Manual for the complete procedure.

IMPORTANT: Ethanol Shield™ (sold separately) is a fuel stabilizer that helps eliminate and prevent ethanol-related problems in power equipment. Follow the instructions on the container and add to the gasoline.

DANGER:

  • Never run the engine indoors or in enclosed, poorly ventilated areas. Engine exhaust contains carbon monoxide, an odorless and deadly gas.
  • Risk of fluid injection and laceration. When using the high-pressure setting, DO NOT allow the high-pressure spray to come in contact with unprotected skin, eyes, or with any pets or animals. A serious injury will occur.

WARNING: Do not allow the unit to run for more than two minutes without the gun trigger being pulled. This could cause overheating and damage to the pump. When the temperature inside the pump rises too high, the thermal relief valve will open and release a spray of water from the pump to lower the internal temperature.
The valve will then close.

  1. Connect a garden hose to the Pump Thread the garden hose to the pump inlet.

  2. Connect a high-Pressure hose to the Pump Connect the high-pressure hose to the pump outlet.

  3. Connect the high-Pressure hose to the spray gun  Connect the other end of the high-pressure hose to the spray gun.DEWALT DXPW3123 3100 PSI Honda Cold Water Gas Pressure Washer - spray gun

  4. Connect the spray Wand to the spray gun Thread the spray wand into the end of the spray gun.DEWALT DXPW3123 3100 PSI Honda Cold Water Gas Pressure Washer - spray gun2

  5. Connect QC Nozzles to spray Wand
    Pull the quick-connect coupler back and insert a nozzle. Release the quick connect coupler and twist the nozzle to make sure it is secure in the coupler.DEWALT DXPW3123 3100 PSI Honda Cold Water Gas Pressure Washer -
spray gun3

  6. Turn Water Faucet Completely On
    Do not run the unit without the water supply connected and turned on. Use Cold Water Only.DEWALT DXPW3123 3100 PSI Honda Cold Water Gas Pressure Washer -
spray gun4

  7. Release Air from the system
    Release all air from the pump and high-pressure hose by depressing the trigger until a steady stream of water is present. Approximately 30 seconds.DEWALT
DXPW3123 3100 PSI Honda Cold Water Gas Pressure Washer - spray
gun5

  8. Start engine. See Engine Owner’s Manual for the correct procedure.

WARNING: This Guide is not a substitute for reading the operator’s manual. Users must read and understand the operator’s manual before using this product.
DO NOT USE FUEL CONTAINING GREATER THAN 10% ETHANOL!

WARNING : Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire, and/or serious injury.
WARNING : Never modify the product or any part of it. Damage or personal injury could result.
WARNING : To reduce the risk of injury, read the instruction manual.

Definitions: Safety Alert Symbols and Words

This instruction manual uses the following safety alert symbols and words to alert you to hazardous situations and your risk of personal injury or property damage.
DANGER : Indicates an imminently hazardous situation that, if not avoided, will result in death or serious injury.
WARNING : Indicates a potentially hazardous situation that, 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.
** (Used without a word) Indicates a safety-related message.
NOTICE:** Indicates a practice not related to personal injury which, if not avoided, may result in property damage.

IMPORTANT SAFETY INSTRUCTIONS

DANGER : Carbon Monoxide. Using an engine indoors can kill you in minutes. Engine exhaust contains high levels of carbon monoxide (CO), a poisonous gas you cannot see or smell. You may be breathing CO even if you do not smell engine exhaust.

  • NEVER use an engine inside homes, garages, crawlspaces,s or other partly enclosed areas. Deadly levels of carbon monoxide can build up in these areas. Using a fan or opening windows and doors does NOT supply enough fresh air.
  • ONLY use outdoors and far away from open windows, doors, and vents. These openings can pull in engine exhaust.
  • Even when the engine is used correctly, CO may leak into your home. ALWAYS use a battery-powered or battery backup CO alarm in your house. Read and follow all directions for the CO alarm before using it. If you feel sick, dizzy, or weak at anytime, move to fresh air immediately.
    See a doctor. You could have carbon monoxide poisoning.

WARNING : Do not operate this unit until you read this instruction manual and the engine instruction manual for safety, operation, and maintenance instructions. If you have any questions regarding the product, please contact our customer service department at www.craftsman.com.
** DANGER** : Risk of injection or severe injury. Keep clear of the nozzle. Do not direct discharge stream at persons or live animals. This product is to be used only by trained operators.

WARNING : This product and its exhaust can expose you to chemicals including lead and lead compounds, and carbon monoxide, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
WARNING : Always wear appropriate personal hearing and other protection during use. Under some conditions and duration of use, noise from this product may contribute to hearing loss.
WARNING : This product may not be equipped with a spark-arresting muffler. If the product is not equipped, one may be purchased separately. It is a violation of California Public Resources Codes 4442 and 4443 to use or operate an internal combustion engine on any forest-covered, brush-covered, or grass-covered land unless the engine is equipped with a spark arrester, as defined in Section 4442, maintained in effective working order or the engine is constructed, equipped, and maintained for the prevention of fire pursuant to Section 4443. If an internal combustion engine is incorporated into equipment to be sold in California, the equipment may be subject to the labeling requirements of section 4442.6.

SAVE THESE INSTRUCTIONS

DANGER: RISK OF EXPLOSION OR FIRE

What CAN HAPPEN

  • Spilled gasoline and its vapors can become ignited from cigarette sparks, electrical arcing, exhaust gases, and hot engine components such as the muffler.
  • Heat will expand fuel in the tank which could result in spillage and possible fire explosion.
  • Operating the pressure washer in an explosive environment could result in a fire.

HOW TO PREVENT IT

  • Shut off the engine and allow it to cool before adding fuel to the tank.

  • Use care in filling the tank to avoid spilling fuel. Move the pressure washer away from the fueling area before starting the engine.

  • Keep the maximum fuel level 1/2″ (12.7 mm) below the bottom of the filler neck to allow for expansion.

  • Operate and fuel equipment in well-ventilated areas free from obstructions.
    Equip areas with fire extinguishers suitable for gasoline fires.

  • Materials placed against or near the pressure washer can interfere with its proper ventilation features causing overheating and possible ignition of the materials.

  • Muffler exhaust heat can damage painted surfaces, melt any material sensitive to heat (such as siding, plastic, rubber, vinyl or the pressure hose, itself ), and damage live plants.

  • Improperly stored fuel could lead to accidental ignition. Fuel improperly secured could get into the hands of children or other unqualified persons.

  • Use of acids, toxic or corrosive chemicals, poisons, insecticides, or any kind of flammable solvent with this product could result in serious injury or death.

  • Never operate the pressure washer in an area containing a dry brush or weeds.

  • Always keep pressure washers a minimum of 4′ (1.2 m) away from surfaces (such as houses, automobiles, or live plants) that could be damaged from muffler exhaust heat.

  • Store fuel in an OSHA-approved container, in a secure location away from the work area.

  • Do not spray flammable liquids.

DANGER: RISK TO BREATHING (ASPHYXIATION

What CAN HAPPEN

  • Breathing exhaust fumes will cause serious injury or death! Engine exhaust contains carbon monoxide, an odorless and deadly gas.
  • Some cleaning fluids contain substances hich could cause injury to the skin, eyes, or lungs.

HOW TO PREVENT IT

  • Operate pressure washers in a well-ventilated area. Avoid enclosed areas such as garages, basements, etc.
  • Never operate the unit in or near a location occupied by humans or animals.
  • Use only cleaning fluids specifically recommended for high-pressure washers.
    Follow the manufacturer’s recommendations. Do not use chlorine bleach or any other corrosive compound.

DANGER: RISK OF FLUID INJECTION AND LACERATION

WHAT CAN HAPPEN

  • Your pressure washer operates at fluid pressures and velocities high enough to penetrate human and animal flesh which could result in amputation or another serious injury. Leaks caused by loose fittings or worn or damaged hoses can result in injection injuries.
    DO NOT TREAT FLUID INJECTION AS A SIMPLE CUT!
    See a physician immediately!

  • Injuries can result if system pressure is not reduced before attempting maintenance or disassembly.

HOW TO PREVENT IT

  • Inspect the high-pressure hose regularly. Replace the hose immediately if it is damaged, worn, has melted from contacting the engine, or shows any signs of cracks, bubbles, pinholes, or another leakage. Never grasp a high-pressure hose that is leaking or damaged.
  • Never touch, grasp or attempt to cover a pinhole or similar water leak on the high-pressure hose. The stream of water IS under high pressure and WILL penetrate skin.
  • Never place hands in front of the nozzle.
  • Direct spray away from self and others.
  • Make sure the hose and fittings are tightened and in good condition. Never hold onto the hose or fittings during operation.
  • Do not allow the hose to contact the muffler.
  • Never attach or remove wand or hose fittings while system is pressurized.
  • When using replacement lances or guns with this pressure washer, do not use a lance and/or lance/gun combination that is shorter in length than what was provided with this pressure washer as measured from the nozzle end of the lance to the gun trigger.
  • To relieve the system pressure, shut off the engine, turn off the water supply and pull the gun trigger until the water stops flowing.
  • Use only accessories rated equal to or higher than the rating of the pressure washer.

**DANGER: RISK OF INJURY FROM SPRAY**

WHAT CAN HAPPEN

  • High-velocity fluid spray can cause objects to break, projecting particles at high speed.
  • Light or unsecured objects can become hazardous projectiles.

HOW TO PREVENT IT

  • Always wear ANSI-approved Z87.1 safety glasses.  Wear protective clothing to protect against accidental spraying.
  • Never point the wand at or spray people or animals.
  • Always secure the trigger lock when the wand is not in service to prevent accidental operation.
  • Never permanently secure the trigger in the pull-back (open) position.

DANGER: RISK OF UNSAFE OPERATION

What CAN HAPPEN

  • Unsafe operation of your pressure washer could lead to serious injury or death to you or others.
  • If proper starting procedure is not followed, the engine can kick back causing serious hand and arm injuries.

HOW TO PREVENT IT

  • Do not use chlorine bleach or any other corrosive compound.
  • Become familiar with the operation and controls of the pressure washer.
  • Keep the operating area clear of all persons, pets, and obstacles.
  • Do not operate the product when fatigued or under the influence of alcohol or drugs. Stay alert at all times.
  • Never compromise the safety features of this product.
  • Do not operate machine with missing, broken, or unauthorized parts.
  • Never leave the wand unattended while the unit is running.
  • If the engine does not start after two pulls, squeeze the trigger of the gun to relieve pump pressure. Pull the starter cord slowly until resistance is felt. Then pull the cord rapidly to avoid kickback and prevent hand or arm injury.
  • The spray gun/wand is a powerful cleaning tool that could look like a toy to a child.
  • The reactive force of the spray will cause the gun/wand to kick back and could cause the operator to slip or fall or misdirect the spray. Improper control of guns/wands can result in injuries to self and others.
  • Keep children away from the pressure washer at all times.
  • Do not overreach or stand on unstable support.
  • Do not use a pressure washer while standing on a ladder.
  • Grip gun/wand firmly with both hands. Expect the gun to kick back when triggered.

DEWALT DXPW3123 3100 PSI Honda Cold Water Gas Pressure Washer - DANGER
4
DANGER: RISK OF INJURY OR PROPERTY DAMAGE WHEN TRANSPORTING OR STORING

What CAN HAPPEN

  • Fuel or oil can leak or spill and could result in fire or breathing hazards. Serious injury or death can result. Fuel or oil leaks will damage carpet, paint or other surfaces in vehicles or trailers.
  • Oil could fill the cylinder and damage the engine if the unit is not stored or transported in an upright position.

HOW TO PREVENT IT

  • If a pressure washer is equipped with a fuel shut-off valve, turn the valve to the off position before transporting to avoid fuel leaks. If a pressure washer is not equipped with a fuel shut-off valve, drain the fuel from the tank before transporting. Only transport fuel in an OSHA-approved container.
    Always place a pressure washer on a protective mat when transporting to protect against damage to vehicles from leaks. Always transport and storage the unit in an upright position. Remove the pressure washer from the vehicle immediately upon arrival at your destination.

DEWALT DXPW3123 3100 PSI Honda Cold Water Gas Pressure Washer -
DANGER6
DANGER: RISK OF ELECTRICAL SHOCK

What CAN HAPPEN

  • Spray directed at electrical outlets or switches, or objects connected to an electrical circuit, could result in a fatal electrical shock.

HOW TO PREVENT IT

  • Unplug any electrically operated product before attempting to clean it. Direct spray away from electric outlets and switches.

DANGER: RISK OF CHEMICAL BURN
WhAT CAN HAPPEN

  • Use of acids, toxic or corrosive chemicals, poisons, insecticides, or any kind of flammable solvent with this product could result in serious injury or death.

HOW TO PREVENT IT

  • Do not spray acids, gasoline, kerosene, or any other flammable materials with this product. Use only household detergents, cleaners and degreasers recommended for use with pressure washers.
  • Wear protective clothing to protect eyes and skin from contact with sprayed materials.

WARNING: RISK OF BURSTING

WHAT CAN HAPPEN

  • Overinflation of tires could result in serious injury and property damage.
  • High-velocity fluid spray directed at pneumatic tire sidewalls (such as found on automobiles, trailers, and the like) could damage the sidewall resulting in serious injury.

HOW TO PREVENT IT

  • Use a tire pressure gauge to check the tire pressure before each use and while inflating tires; see the tire sidewall for the correct tire pressure.
    NOTE: Air tanks, compressors and similar equipment used to inflate tires can fill small tires similar to these very rapidly.
    Adjust the pressure regulator on the air supply to no more than the rating of the tire pressure. Add air in small increments and frequently use the tire gauge to prevent overinflation.

  • On pressure washers rated above 1600 psi (11032 kPa) use the widest fan spray (40º nozzle) and keep the spray a minimum of 8″ (200 mm) from the pneumatic tire sidewall. Do not aim spray directly at the joint between the tire and rim.

WARNING: RISK OF HOT SURFACES

WHAT CAN HAPPEN

  • Contact with hot surfaces, such as engine exhaust components, could result in serious burns.

HOW TO PREVENT IT

  • During operation, touch only the control surfaces of the pressure washer. Keep children away from the pressure washer at all times.
    They may not be able to recognize the hazards of this product.

WARNING: RISK OF INJURY FROM LIFTING

WHAT CAN HAPPEN

  • Serious injury can result from attempting to lift too heavy an object.

HOW TO PREVENT IT

  • The pressure washer is too heavy to be lifted by one person. Obtain assistance from others before lifting.

SAVE THESE INSTRUCTIONS FOR FUTURE USE

Get to Know the Pressure Washer
NOTE: Photographs and line drawings used in this manual are for reference only and do not represent a specific model.
Compare the illustrations with your unit to familiarize yourself with the location of various controls and adjustments. Save this manual for future reference.

Basic Elements of a Pressure Washer (Fig. A, G)

  1. high-Pressure Pump: Increases the pressure of the water supply.
  2. Engine: Drives the high-pressure pump. Refer to the Engine Owner’s Manual for the location and operation of engine controls.
  3. high-Pressure hose: Carries the pressurized water from the pump to the gun and spray wand.
  4. spray gun: Connects with spray wand to control water flow rate, direction, and pressure.
  5. Quick-Connect spray Wand: Allows the user to quickly change out high-pressure nozzles. See how To Use spray Wand instructions in the Operation section.
  6. Detergent siphon hose (Fig. h)): Feeds cleaning agents into the pump to mix with the water. See how To Apply Chemicals/Cleaning solvents instructions in the Operation section.
  7. handle
  8. Frame
  9. Pump Outlet
  10. Pump inlet
  11. Quick Connect Nozzles
  12. Detergent Tank

Basic Elements of an Engine

Refer to the Engine Owner’s Manual for the location and operation of engine controls.
NOTE: The power rating of the engine is the net power output tested on the production engine for the engine model and measured in accordance with SAE J1349 at the rated speed indicated above. Mass production engines may vary from this value. Actual power output for the engine installed in the final machine will vary depending on numerous factors, including the operating speed of the engine in applications, environmental conditions, maintenance, and other variables.
Choke Control: Opens and closes carburetor choke valve.
starter grip: Pulling starter grip operates the recoil starter to crank the engine.
Engine switch: Enables and disables ignition system.

ASSEMBLY INSTRUCTIONS (FIG. B–E)

  1. Locate and remove all loose parts from the carton.

  2. Cut four corners of the carton from top to bottom and lay the panels flat.

  3. Slide the handle assembly  7  onto frame  8, align holes, insert saddle bolts, and secure in place with knobsTighten until snug.
    NOTICE: Risk of personal injury. Avoid placing hands between the handle and frame when assembling to prevent pinching.

  4. Remove the colored quick-connect nozzles  11  from the plastic bag and insert them into the correct grommet on the nozzle holder. Nozzles are color coded to match the color nozzles on label  17.

  5. Connect wand  5  to gun  4 . Tighten securely.

  6. Attach high-pressure hose  3  to gun  4 . Tighten securely
    NOTE: The pump on this unit is maintenance-free and requires no oil. If there is a problem with the pump, visit our website at www.dewalt.com for a list of service centers, or call DeWALT at 1-877-362-4271.
    NOTICE: The engine is shipped without oil. Before starting the engine, add the oil provided. Damage to the engine will occur if the engine is run without oil, this damage will not be covered under warranty.

OPERATION

Pressure Washer Terminology
Psi: Pounds per Square Inch. The unit of measure for water pressure. Also used for air pressure, hydraulic pressure, etc.
gPM
: Gallons per Minute. The unit of measure for the flow rate of water.

  • Complies with CETA Performance Standard CPC-100.

Bypass Mode: Allows water to re-circulate within the pump when the gun trigger is not pulled. This feature allows the operator to release the trigger gun and reposition
themselves without having to turn the engine off in between cleaning actions.

WARNING: Do not allow the unit to run for more than two minutes without the gun trigger being pulled. This could cause overheating and damage to the pump. When the temperature inside the pump rises too high, the thermal relief valve will open and release a spray of water from the pump to lower the internal temperature. The valve will then close.

Thermal Relief Valve (Fig. F): When the temperature inside the pump rises too high, this valve will open and release a gush of water in an effort to lower the temperature inside
the pump. The valve will then close. NOTE: Thermal relief valve  16  location will vary depending on the pump type. Detergent injection system: Mixes cleaners or cleaning solvents with the water to improve cleaning effectiveness.
Water supply: All pressure washers must have a source of water. The minimum requirements for a water supply are 20 psi and 5 Gallons Per Minute. If your water source is a well, the garden hose length can only be 30  ft. (9 m) max.
WARNING: To reduce the possibility of contamination always protect against backflow when connected to a potable water system.

Pressure Washer Operating Features

Pressure Adjustments
The pressure setting is preset at the factory to achieve op time pressure and cleaning.
If you need to lower the pressure, it can be accomplished by these methods.

  1. Back away from the surface to be cleaned. The further away you are, the less pressure will be on the surface to be cleaned.
  2. Change to the 40˚ nozzle (white). This nozzle delivers a less powerful stream of water and a wider spray pattern. Refer to how To Use spray Wand.
    NOTICE: DO NOT attempt to increase pump pressure.
    A higher pressure setting than the factory set pressure may damage the pump.

Pressure Adjustments
The pressure setting is preset at the factory to achieve op time pressure and cleaning.
If you need to lower the pressure, it can be accomplished by these methods.

  1. Back away from the surface to be cleaned. The further away you are, the less pressure will be on the surface to be cleaned.
  2. Change to the 40˚ nozzle (white). This nozzle delivers a less powerful stream of water and a wider spray pattern. Refer to how To Use spray Wand.
    NOTICE: DO NOT attempt to increase pump pressure.
    A higher pressure setting than the factory set pressure may damage the pump.

How To Use Spray Wand

The nozzles for the spray wand are stored in the nozzle holder on the panel assembly. Colors on the panel identify nozzle location and spray pattern. Refer to the following chart to choose the correct nozzle for the job to be performed.
NOTE: Some models may not include all of the nozzles shown in the chart.

Changing Nozzles on Spray Wand (Fig. G)
DANGER: Risk of fluid injection. Do not direct discharge stream toward persons, unprotected skin, eyes, or any pets or animals. A serious injury will occur.

WARNING: Flying objects could cause a risk of serious injury. Do not attempt to change nozzles while the pressure washer is running. Turn the engine off before changing the nozzles.

  1. Pull quick-connect coupler  5  back and insert nozzle  11.
  2. Release the quick-connect coupler and twist the nozzle to make sure it is secure in the coupler.

WARNING: Flying objects could cause a risk of serious injury. Ensure the nozzle is completely inserted in the quick-connect socket and the quick- connect collar is fully engaged (forward) before squeezing the gun trigger.

Nozzle Color Spray Pattern Uses Surfaces”
Red (if equipped) powerful pinpoint for

spat cleaning of hard, unpainted surfaces or
for high-reach areas| unpainted
metal or concrete;
DO NOT use on wood
Yellow(if equipped)| | intense
(learning of unpainted
hard surfaces| grills,
driveways, concrete
or brick walkways, unpainted brick or stucco
White(if equipped)| | cleaning
of painted or delicate surfaces| auto/RV,
marine, wood, painted brick and stucco,
vinyl, painted siding
13! ackfif equipped)| | applies
cleaning solutions| The low-pressure spray is safe on all surfaces. Always verify the compatibility of the cleaning solution prior to 10 use.
Blue(if equipped)| Second-story rinse nozzle| For second-story cleaning| metal, concrete, or wood
“NOTICE: The high p essure spray from your pressure washer is capable of causing damage to surfaces such as wood, gloss, automobile paint, auto striping and trim, and delicate objects such as flowers and shrubs. Before spraying, check the item to be cleaned to assure yourself that it is strong enough to resist damage from the force of the spray.

How to Apply Chemicals/Cleaning Solvents (Fig. A, H)
Applying chemicals or cleaning solvents is a low-pressure operation. NOTE: Use only soaps and chemicals designed for pressure washer use. Do not use bleach.
To Apply Chemicals (siphon hose, if equipped) (Fig. h)

  1. Ensure detergent siphon hose  6  is attached to the barbed fitting location near the high-pressure hose connection of the pump as shown.

  2. Place the other end of the detergent siphon hose with a filter on it into a container holding the chemical/cleaning solution.
    NOTE: For every 7 gallons of water pumped 1 gallon of chemical/cleaning solution will be used.

  3. Install the black low-pressure nozzle into the quick-connect fitting of the spray wand. See how To Use spray Wand paragraph in this section.
    NOTE: After squeezing the trigger it will take approximately 5 seconds for the detergent to appear.

  4. After the use of chemicals, place the detergent siphon hose into the container of clean water and draw clean water through the chemical injection system to rinse the system thoroughly.
    If chemicals remain in the pump it could be damaged.
    Pumps damaged due to chemical residue will not be covered under warranty.

NOTE: Chemicals and soaps will not siphon if the black soap nozzle is not installed on the spray wand.
To Apply Chemicals (Detergent Tank, if equipped) (Fig. A):

  1. Remove the cap from the detergent tank  12  and fill the detergent tank with cleaning solvent. Replace the cap on the deteregent tank. NOTE: For every 7 gallons of water
    pumped 1 gallon of chemical/cleaning solution will be used.

  2. Install the black low-pressure nozzle into the quick-connect fitting of the spray wand. See how To Use spray Wand paragraph in this section.
    NOTE: After squeezing the trigger it will take approximately 5 seconds for the detergent to appear.

  3. After the use of chemicals, fill the detergent tank with clean water and draw clean water through the chemical injection system to rinse the system thoroughly. If chemicals remain in the pump it could be damaged. Pumps damaged due to chemical residue will not be covered under warranty.
    NOTE: Chemicals and soaps will not siphon if the black soap nozzle is not installed on the spray wand.

Starting (Fig. I–L)

WARNING: To reduce the risk of injury, read the pressure washer instruction manual and the engine instruction manual before starting the pressure washer.
DANGER: Risk of fluid injection and laceration.
When using the high-pressure setting, DO NOT allow the high-pressure spray to come in contact with unprotected skin, eyes, or with any pets or animals. A serious injury will occur.

  • Your washer operates at fluid pressures and velocities high enough to penetrate human and animal flesh, which could result in amputation or another serious injury. Leaks caused by loose fittings or worn or damaged hoses can result in injection injuries. DO NOT TREAT FLUID INJECTION AS A SIMPLE CUT! See a physician immediately!

**** DANGER: Carbon Monoxide. Using an engine indoors can kill you in minutes. Engine exhaust contains high levels of carbon monoxide (CO), a poisonous gas you cannot see or smell. You may be breathing CO even if you do not smell engine exhaust.

  • Breathing exhaust fumes will cause serious injury or death! Engine exhaust contains carbon monoxide, an odorless and deadly gas.
  • Operate pressure washers in a well-ventilated area. Avoid enclosed areas such as garages, basements, etc.
  • Never op er ate unit in or near a lo ca tion occupied by humans or animals.

WARNING : Risk of Fire, Asphyxiation, and Burn.
Never fill the fuel tank when the engine is running or hot.
Do not smoke when filling the fuel tank.

  • Never fill the fuel tank completely. Fill the tank to 1/2″ (12.7 mm) below the bottom of the filler neck to provide space for fuel expansion. Wipe any fuel spillage from the engine and equipment before starting the engine.

  • DO NOT let hoses come in contact with a very hot engine muffler during or immediately after the use of your pressure washer. Damage to hoses from contact with hot engine surfaces will NOT be covered by warranty.
    NOTICE: Risk of property damage. Never pull the water supply hose to move the pressure washer. This could damage the hose and/or pump inlet.

  • DO NOT use hot water, use cold water only.

  • Never turn the water supply off while the pressure washer engine is running or damage to pump will result.

  • DO NOT stop spraying water for more than two minutes at a time. The pump operates in bypass mode when the spray gun trigger is not pressed. If the pump is left in bypass mode for more than two minutes internal components of the pump can be damaged.

If you do not understand these precautions, visit our website at www.dewalt.com for a list of service centers, or call DeWALT at 1-877-362-4271.
Prior to starting, refer to your engine manual for the proper starting procedure.

  1.  In a well-ventilated outdoor area add fresh, high-quality, unleaded gasoline with a pump octane rating of 86 or higher. Do not overfill. Wipe up spilled fuel before starting the engine. Refer to Engine Owner’s Manual for the correct procedure.
    IMPORTANT: Ethanol Shield™ (sold separately) is a fuel stabilizer that helps eliminate and prevent ethanol-related problems in power equipment. Follow the instructions on the container and add to the gasoline.DEWALT
DXPW3123 3100 PSI Honda Cold Water Gas Pressure Washer - ETHLAO
COMPROJAL NOTICE: The use of fuels with greater than 10% ethanol is not approved for use in this product per EPA regulations and will damage the unit and void the warranty.

  2. Check engine oil level. See Engine Owner’s Manual for the correct procedure.

  3. Connect the water hose to the water source. Turn the water source on to remove all air from the hose. When a steady stream of water is present, turn the water source off.

  4. Verify that filter screen  13  is in the water inlet of the pump.
    NOTE: Convex side faces out.

  5. Connect water source  14  to pump inlet  10.
    NOTE: Water source must provide a minimum of 5 gallons per minute at 20 psi.

  6. Connect high-pressure hose  3  to pump outlet  9.
    WARNING: To reduce the possibility of contamination always protect against backflow when connected to a potable water system.

  7. Choose the correct nozzle for the job to be performed. See how To Use spray Wand instructions in this section.
    NOTE: If applying a chemical or cleaning solution, see How To Apply Chemicals/Cleaning solvents instructions in this section.

  8. Turn the water source on.
    NOTICE: Risk of property damage. Failure to do so could cause damage to the pump.

  9. Remove all air from the pump and high-pressure hose by depressing the trigger until a steady stream of water is present.

  10. Start the engine. See Engine Owner’s Manual for the correct procedure.
    WARNING: Risk of unsafe operation. If the engine does not start after two pulls, squeeze the trigger of the gun to relieve pump pressure. Pull the starter cord slowly until resistance is felt. Then pull the cord rapidly to avoid kickback and prevent hand or arm injury.

  11. Depress the trigger on the gun to start the water flow.
    WARNING: Risk of unsafe operation. Stand on a stable surface and grip the gun/spray wand firmly with both hands. Expect the gun to kick when triggered.

  12. Release trigger to stop the water flow.
    WARNING : Do not allow the unit to run for more than two minutes without the gun trigger being pulled. This could cause overheating and damage to the pump. When the temperature inside the pump rises too high, the thermal relief valve will open and release a spray of water from the pump to lower the internal temperature. The valve will then close.
    WARNING: Risk of injury from the spray. Always engage the trigger lock 15  when the gun is not in use. Failure to do so could cause accidental spraying.

Shutting Down

  1. After each use, if you have applied chemicals, place the detergent siphon hose into a container of clean water and draw clean water through the chemical injection system to rinse the system thoroughly.
    NOTICE: Risk of property damage. Failure to do so could cause damage to the pump.

  2. Turn the engine off. See Engine Owner’s Manual.
    NOTICE: Risk of property damage. NEVER turn the water off with the engine running.

  3. Turn the water source off.

  4. Pull the trigger on the spray gun to relieve any water pressure in the hose or spray gun.
    NOTE: Failure to release system pressure will prevent the removal of the high- pressure hose from a spray gun or pump connection.

  5. See the Storage section in this manual for proper storage procedures.

MAINTENANCE

WARNING : Risk of a burn hazard. When performing maintenance, you may be exposed to hot surfaces, water pressure, or moving parts that can cause serious injury or death.
WARNING : Risk of fire hazard. Always disconnect, the spark plug wire, let the engine cool and release all water pressure before performing any maintenance or repair. The engine contains flammable fuel. Do not smoke or work near open flames while performing maintenance.
To ensure efficient operation and longer life of your pressure washer, a routine maintenance schedule should be prepared and followed. If the pressure washer is used in unusual
conditions, such as high temperatures or dusty conditions, more frequent maintenance checks will be required.
Engine
Consult the Engine Owner’s Manual for the manufacturer’s recommendations for any and all maintenance.
NOTE: The engine drain plug is located at the rear of the unit.

Pump
The pump was filled with oil at the factory. The pump on this unit is maintenance-free and requires no oil to be added or changed. If there is a problem with the pump, visit our
website at www.dewalt.com for a list of service centers, or call DeWALT at 1-877-362-4271.
Connections
Connections on pressure washer hoses, guns, and spray wands should be cleaned regularly and lubricated with light oil or lithium grease to prevent leakage and damage to the O-rings.

Nozzle Cleaning (Fig. M)
If the nozzle becomes clogged with foreign materials, such as dirt, excessive pressure may develop. If the nozzle becomes partially clogged or restricted, the pump pressure will
pulsate. Clean the nozzle immediately using the nozzle kit supplied and the following instructions:

  1.  Shut off the pressure washer and turn off the water supply.
  2. Pull the trigger on the gun handle to relieve any water pressure.
  3. Disconnect the spray wand from the gun.
  4. Remove the high-pressure nozzle  11  from the spray wand. Remove any obstructions with the nozzle cleaning tool provided and backflush with clean water.
  5. Direct water supply  14  into the nozzle to backflush loosened particles for 30 seconds.
  6. Reassemble the nozzle to the wand.
  7. Reconnect the spray wand to the gun and turn on the water supply.
  8. Start the pressure washer and place the spray wand into high pressure setting to test.

Clean the Water Inlet Filter (Fig. I)
This screen filter should be checked periodically and cleaned if necessary.

  1. Remove filter  13  by grasping the end and removing it from the water inlet of the pump.
  2. Clean the filter by flushing it with water on both sides.
  3. Re-insert the filter into the water inlet of the pump. NOTE: Cone side faces out.
    NOTE: Do not operate the pressure washer without the filter properly installed. storage

STORAGE
Engine
Consult the Engine Owner’s Manual for the manufacturer’s recommendations for storage.
To Prevent Fuel-Related Problems

  1. Add an Ethanol ShieldTM fuel stabilizer following the manufacturer’s instructions. When adding a gasoline stabilizer, fill the fuel tank with fresh gasoline. If only partially filled, the air in the tank will promote fuel deterioration during storage. If you keep a container of gasoline for refueling, be sure that it contains only fresh gasoline.
  2. After adding a gasoline stabilizer, run the engine outdoors for 10 minutes to be sure that treated gasoline has replaced the untreated gasoline in the carburetor.
  3. Turn the fuel valve to the OFF position.
  4. Continue to run the engine until it stops from the lack of fuel in the carburetor fuel bowl. Running time should be less than 3 minutes.

Pump
The manufacturer recommends using DeWALT Pump Guard or equivalent when storing the unit for more than 30 days and/or when freezing temperatures are expected. DeWALT Pump Guard is environmentally friendly.
NOTE : Using a pump guard helps provide proper lubrication to the internal seals of the pump regardless of temperature or environment.
NOTICE : Risk of property damage. Use only DeWALT Pump Guard or equivalent. Other products could be corrosive and/or contain alcohol which may cause pump damage.

  1. Turn off the pressure washer and disconnect the hoses from the pump.
  2. Unscrew the bottle valve from the Pump Guard bottle and remove the seal.
  3. Screw the bottle valve back onto the bottle.
  4. Attach the bottle to the water inlet of the pump.
  5. Squeeze the bottle to inject contents into the pump.
  6. With the ignition switch off, simultaneously pull the starter rope and squeeze the bottle. Repeat until the protector fluid exits the pump outlet. NOTE: This step may require two people.

Pressure Washer

  1. Drain all water from the high-pressure hose and wrap it in the hose wrap.
  2. Drain all water from the spray gun and wand by holding the spray gun in a vertical position with the nozzle end pointing down and squeezing the trigger. Store in the gun holder.
  3. Wrap up and secure the detergent siphon hose so it is protected from damage.
    Accessories

DANGER : Risk of fluid injection. When using replacement spray wands or guns with this pressure washer, DO NOT use a spray wand and/or spray gun/ wand combination that is shorter in length than what was provided with this pressure washer as measured from the nozzle end of the wand to the gun trigger.
WARNING : Since accessories, other than those offered by DeWALT, have not been tested with this product, the use of such accessories with this tool could be hazardous.
To reduce the risk of injury, only DeWALT-recommended accessories should be used with this product.
Recommended accessories for use with your tool are available at extra cost from your local dealer or authorized service center. If you need assistance in locating any accessory, please contact DeWALT, or call 1-877-362-4271.

Repairs
**WARNING : To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustment (including brush inspection and replacement, when applicable) should
be performed by a DeWALT factory service center or a DeWALT authorized service center. Always use identical replacement parts.
To find the nearest service center, please contact DeWALT, call 1-877-362-4271.
Cleaning
WARNING : Blow dirt and dust out of all air vents with clean, dry air at least once a week. To minimize the risk of eye injury, always wear ANSI Z87.1-approved eye
protection when performing this.
**
WARNING: Never use solvents or other harsh chemicals for cleaning the non-metallic parts of the tool. These chemicals may weaken the plastic materials used in these parts. Use a cloth dampened only with water and mild soap. Never let any liquid get inside the tool; never immerse any part of the tool in a liquid.
Register Online
Thank you for your purchase. Register your product now for:

  • WARRANTY sERViCE: Registering your product will help you obtain more efficient warranty service in case there is a problem with your product.
  • CONFiRMATiON OF OWNERshiP: In case of an insurance loss, such as fire, flood, or theft, your registration of ownership will serve as your proof of purchase.
  • FOR YOUR SAFETY: Registering your product will allow us to contact you in the unlikely event a safety notification is required under the Federal Consumer Safety Act.
    Register online at www.dewalt.com

LIMITED WARRANTY
90-DAY LIMITED WARRANTY ON PRODUCT COMPONENTS
The manufacturer warrants to the original purchaser that the wheels, gun, hose, wand, spray nozzle(s), and other components of the pressure washer covered under this warranty are free from defects in material and workmanship for 90 days from the date of purchase.
TWO-YEAR LIMITED WARRANTY ON PUMP
The manufacturer warrants to the original purchaser that the pump of the pressure washer covered under this warranty is free from manufacturer’s defects in material and workmanship for two years from the date of purchase. The two-year limited warranty applies to the pump only.
FIVE-YEAR LIMITED WARRANTY ON FRAME
The manufacturer warrants to the original purchaser that the frame of the pressure washer covered under this warranty is free from manufacturer’s defects in material and
workmanship for five years from the date of purchase. The five-year limited warranty applies to the frame only.
The manufacturer will repair or replace, at the manufacturer’s option, products or components which have failed within the above warranty periods. Service will be scheduled according to the normal workflow and business hours at the service center location, and the availability of replacement parts.
All decisions of the manufacturer with regard to this limited warranty shall be final.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
ENGINE WARRANTY
The engine, emission control system, and related components are covered under the terms and conditions outlined by the engine manufacturer’s warranty and are the sole responsibility of the engine manufacturer. A copy of the engine manufacturer’s warranty has been provided to you with your pressure washer. Please consult the engine manufacturer’s warranty to process a claim or obtain service to the engine, emission control system, or related components.

RESPONSIBILITY OF ORIGINAL PURCHASER (Initial User):

  • To process a warranty claim on your pressure washer, report the concern to or for authorization and direction to the nearest authorized service center in your area.
  • Retain original cash register sales receipt as proof of purchase for warranty work.
  • Use reasonable care in the operation and maintenance of the product as described in the Owners Manual(s).

THIS WARRANTY DOES NOT COVER:

  • Merchandise sold as reconditioned, used as rental equipment, used for commercial purposes or commercial applications, or floor or display models.
  • Merchandise that has become damaged or inoperative because of ordinary wear, misuse, cold, heat, rain, excessive humidity, water quality, freeze damage, use of improper chemicals, negligence, accident, failure to operate the product in accordance with the instructions provided in the Owners Manual(s) supplied with the product, improper maintenance, the use of accessories or attachments not recommended by the manufacturer, or unauthorized repair or alterations.
  • Repair and transportation costs of merchandise determined not to be defective.
  • Damage due to chemical deterioration, scale build-up, rust, corrosion, or thermal expansion
  • Costs associated with assembly, required oil, adjustments, or other installation and start-up costs.
  • Expendable parts or accessories supplied with the product which is expected to become inoperative or unusable after a reasonable period of use, including but not limited to springs, nozzles, o-rings, washers, and similar accessories.
  • Merchandise sold by the manufacturer which has been manufactured by and identified as the product of another company, such as gasoline engines. The product manufacturer’s warranty, if any, will apply.
  • ANY INCIDENTAL, INDIRECT, OR CONSEQUENTIAL LOSS, DAMAGE, OR EXPENSE THAT MAY RESULT FROM ANY DEFECT, FAILURE, OR MALFUNCTION OF THE PRODUCT IS NOT COVERED BY THIS WARRANTY. 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.
  • IMPLIED WARRANTIES, INCLUDING THOSE OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED TO ONE YEAR FROM THE DATE OF ORIGINAL PURCHASE. Some states do not allow limitations on how long an implied warranty lasts, so the above limitations may not apply to you.

TROUBLESHOOTING GUIDE

BE SURE TO FOLLOW SAFETY RULES AND INSTRUCTIONS For assistance with your product, visit our website at www.dewalt.com for a list of service centers, or call DEWALT at 1-877-362-4271.

Operational Issue Possible Cause SOLUTION

Engine wi.:1 does not start (see
Engine Owner’s Manual for further engine troubleshooting)| No fuel.| Add fresh fuel.
Pressure builds up after two pulls on the recoil starter or after initial use| Squeeze the gun trigger to relieve pressure
Choke lever in the No Choke position| Move choke to the “Choke” position
The spark plug wire is not attached.| Attach spark plug wire.
Engine switch in OFF position| Place the engine switch in the ON position
Choke lever in the “Choke position on a “hot engine or an engine that has been exposed to thermal heat for a long period of time| Move choke to the No Choke” position
No or low pressure (initial use)| Spray wand not in high pressure| See Now to Use Spray Wand instructions in the Operation Section
Low water supply| Water supply must be at least S QPM @ 20 psi
Leak at the high-pressure hose fitting| Repair leak. Apply sealant tape if necessary
Nozzle obstructed| See Nozzle (learning instructions in the Maintenance section
The water filter screen clogged| Remove and clean the filter. See the Cleaning Water Inlet Filter paragraph in the Maintenance section for the correct procedure
Air in hose| Turn off the engine, then the water source. Disconnect the water source from the pump inlet and turn the water source on to remove all air from the hose. When there is a steady stream of water present, turn the water source off. Re-con-
next water source to pump inlet and turn on the water source. Squeeze trigger to remove remaining air
Choke in the ‘Choke position| Move the choke to the “No Choke position
The high-pressure hose is too long| Use a high-pressure hose under100 feet (30 m)
Will not dray/chemicals| Spray wand not in low pressure| See the How to Use Spray Wand paragraph in the Operation Section
Chemical filter dogged| Clean filter
Chemical screen not in cleaning solution| Make sure the end of the detergent siphon hose is fully submerged in the cleaning solution
Chemical too thick| Dilute chemical. Chemicals should be the same consistency as water
The pressure hose is too long| Lengthen water supply hose instead of high- pressure hose
The chemical build-up in the chemical injector| Please contact the service center.
No or low pressure (after a period of normal use)| Worn seal or packing| Please contact the service center.
Worn or obstructed valves| Please contact the service center.
Worn unloader piston| Please contact the service center.
Water leaking at gun/spray wand connection| Worn or broken o-ring| Check and replace
Loose hose connection| Tighten
Water leaking at the pump| Loose connections| Tighten
Piston packings worn| Please contact the service center.
Worn or broken o-rings| Please contact the service center.
Pump heads or tubes damaged from freezing| Please contact the service center.
Pump pulsates| Nozzle obstructed| See Nozzle (leaning paragraph in the Maintenance section for the correct procedure

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