SIMPSON ALH3228 Cleaning Powered 3400 PSI Gas Pressure Washer Instruction Manual

June 4, 2024
Simpson

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SIMPSON ALH3228 Cleaning Powered 3400 PSI Gas Pressure Washer

If your pressure washer is not working properly or if there are parts missing or broken, please DO NOT RETURN IT TO THE PLACE OF PURCHASE. Contact our Customer Service Department at 1-877-362-4271 or www.simpsoncleaning.com

IMPORTANT: Please make certain that the person who is to use this equipment carefully reads and understands these instructions before operating.

SAFETY GUIDELINES – DEFINITIONS

This manual contains information that is important for you to know and understand. This information relates to protecting YOUR SAFETY and PREVENTING EQUIPMENT PROBLEMS. To help you recognize this information, we use the symbols below. Please read the manual and pay attention to these 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 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 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 CO alarm before using. If you feel sick, dizzy or weak at any time, 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.simpsoncleaning.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 contain chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. In addition, some cleaning products and dust contain chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Wash hands after handling.

  • WARNING: This product may not be equipped with a spark-arresting muffler. If the product is not equipped and will be used around flam ma be ma terials or on land covered with materials such as agricultural crops, forest, brush, grass or other similar items, then an approved spark arrester must be installed and is legally required in the state of California. It is a violation of California statutes section 130050 and/or sections 4442 and 4443 of the California Public Re sourc es Code, unless the engine is equipped with a spark arrester, as defined in section 4442, and maintained in ef fec tive working order. Spark arresters are also required on some U.S. For est Service land and may also be legally required under other statutes and or di nancy es.

SAVE THESE INSTRUCTIONS

DANGER: RISK OF EXPLOSION OR FIRE

WHAT CAN HAPPEN HOW TO PREVENT IT

•      Spilled gasoline and it’s vapors can

become ignited from cigarette sparks, electrical arcing, exhaust gases and hot engine components such as the muffler.

| •     Shut off engine and allow it to cool before

adding fuel to the tank.

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

•      Heat will expand fuel in the tank which

could result in spillage and possible fire explosion.

| •      Keep maximum fuel level 1/2″ (12.7 mm)

below bottom of filler neck to allow for expansion.

•      Operating the pressure washer in an

explosive environment could result in a fire.

| •     Operate and fuel equipment in well-

ventilated areas free from obstructions. Equip areas with fire extinguisher 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.

| •      Never operate pressure washer in an area

containing dry brush or weeds.

•      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.

| •      Always keep pressure washer 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.

•      Improperly stored fuel could lead to accidental ignition. Fuel improperly secured could get into the hands of children or other unqualified persons.| •     Store fuel in an OSHA approved contain- er, in a secure location away from work area.
•     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.

| •      Do not spray flammable liquids.

DANGER: RISK TO BREATHING (ASPHYXIATION

WHAT CAN HAPPEN HOW TO PREVENT IT

•      Breathing exhaust fumes will cause

serious injury or death! Engine exhaust contains carbon monoxide, an odorless and deadly gas.

| •      Operate pressure washer in a well-

ventilated area. Avoid enclosed areas such as garages, basements, etc.

•     Never operate unit in or near a location occupied by humans or animals.

•      Some cleaning    fluids   contain

substances which could cause injury to skin, eyes or lungs.

| •      Use only cleaning fluids specifically rec-

ommended for high pressure washers. Follow manufacturers recommendations. Do not use chlorine bleach or any other corrosive compound.

DANGER: RISK OF FLUID INJECTION AND LACERATION

WHAT CAN HAPPEN HOW TO PREVENT IT

•     Your pressure washer operates at fluid pressures and velocities high enough to penetrate human and animal flesh which could result in amputation or other 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!| •     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 other 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 nozzle.

•     Direct spray away from self and others.

•     Make sure hose and fittings are tightened and in good condition. Never hold onto the hose or fittings during operation.

•     Do not allow hose to contact 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.

•     Injuries can result if system pressure is not reduced before attempting maintenance or disassembly.| •     To relieve system pressure, shut off engine, turn off water supply and pull gun trigger until 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 HOW TO PREVENT IT

•      High-velocity fluid spray can cause

objects to break, projecting particles at high speed.

| •     Always wear ANSI-approved Z87.1

safety glasses. Wear protective clothing to protect against accidental spraying.

•     Never point wand at or spray people or animals.

•      Light or unsecured objects can

become hazardous projectiles.

| •      Always secure trigger lock when wand

is not in service to prevent accidental operation.

•     Never permanently secure trigger in pull- back (open) position.

DANGER: RISK OF UNSAFE OPERATION

WHAT CAN HAPPEN HOW TO PREVENT IT

•      Unsafe operation of your pressure

washer could lead to serious injury or death to you or others.

| •     Do not use chlorine bleach or any other

corrosive compound.

•     Become familiar with the operation and controls of the pressure washer.

•     Keep 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 wand unattended while unit is running.

•     If proper starting procedure is not

followed, engine can kickback causing serious hand and arm injury.

| •     If engine does not start after two pulls,

squeeze trigger of gun to relieve pump pressure. Pull starter cord slowly until resistance is felt. Then pull 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.

| •      Keep children away from the pressure

washer at all times.

•      Reactive force of spray will cause gun/

wand to kickback, and could cause the operator to slip or fall or misdirect the spray. Improper control of gun/ wand can result in injuries to self and others.

| •      Do not overreach or stand on an unstable

support.

•      Do not use pressure washer while standing on a ladder.

•      Grip gun/wand firmly with both hands. Expect the gun to kickback when triggered.

DANGER: RISK OF INJURY OR PROPERTY DAMAGE WHEN TRANSPORTING OR STORING

WHAT CAN HAPPEN HOW TO PREVENT IT

•     Fuel or oil can leak or spill and could result in fire or breathing hazard. 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.

| •     If pressure washer is equipped with a fuel

shut-off valve, turn the valve to the OFF position before transporting to avoid fuel leaks. If pressure washer is not equipped with a fuel shut-off valve, drain the fuel from tank before transporting. Only trans- port fuel in an OSHA-approved container. Always place pressure washer on a protective mat when transporting to protect against damage to vehicle from leaks.

Always transport and store unit in an upright position. Remove pressure washer from vehicle immediately upon arrival at your destination.

DANGER: RISK OF ELECTRICAL SHOCK

WHAT CAN HAPPEN HOW TO PREVENT IT

•      Spray directed at electrical outlets or

switches, or objects connected to an electrical circuit, could result in a fatal electrical shock.

| •      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 HOW TO PREVENT IT

•      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.

| •      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 HOW TO PREVENT IT

•      Over inflation of tires could result in

serious injury and property damage.

| •      Use a tire pressure gauge to check the

tires 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 pressure regulator on 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 over inflation.

•     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.| •     On pressure washers rated above 1600 PSI (11032 kPa) use the widest fan spray (40º nozzle) and keep the spray a minimum of 8″ (20 cm) 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 HOW TO PREVENT IT

•      Contact with hot surfaces, such as

engine exhaust components, could result in serious burn.

| •      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 HOW TO PREVENT IT

•      Serious injury can result from

attempting to lift too heavy an object.

| •      The pressure washer is too heavy to be

lifted by one person. Obtain assistance from others before lifting.

QUICK SETUP GUIDE

WARNING: To reduce the risk of injury, read the pressure washer instruction manual and the engine instruction manual before operating the pressure washer.

  • Install the Handle
    • A Slide the handle assembly onto the frame and secure with saddle bolts and knobs.
  • Add/Check Oil
    • The engine is shipped without oil. Before starting engine, add the oil provided. Check oil level prior to each use. Refer to Engine Owner’s Manual for complete procedure.
  • 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 Owner’s Manual for complete procedure.SIMPSON-ALH3228-Cleaning-Powered-3400-PSI-Gas-Pressure-Washer-
FIG-1

DANGER:

  • Never run engine indoors or in enclosed, poorly ventilated areas. Engine exhaust con-tains 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. Serious injury will occur.
    1. Connect Garden Hose to Pump
    • Thread the garden hose to the pump inlet. See label #1 on unit.
    1. Connect High-Pressure Hose to Pump
    • Connect the high-pressure hose to the pump outlet. See label #2 on unit.
    1. Connect High-Pressure Hose to Spray Gun
    • Connect the other end of the high-pressure hose to the spray gun.SIMPSON-ALH3228-Cleaning-Powered-3400-PSI-Gas-Pressure-Washer-FIG-2
    1. Connect Spray Wand to Spray Gun
    • Thread the spray wand into the end of the spray gun.
    1. Connect QC Nozzles to Spray Wand
    • Pull quick connect coupler back and insert nozzle. Release quick connect coupler and twist nozzle to make sure it is secure in coupler.
    1. Turn Water Faucet Completely On
    • Do not run the unit without water supply connected and turned on. Use Cold Water Only.SIMPSON-ALH3228-Cleaning-Powered-3400-PSI-Gas-Pressure-Washer-FIG-3
    1. Release Air from 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.
    1. Verify the Fuel Switch is in the ON Position
    • See label #8 on the unit.
    1. Verify the Engine Switch is turned to the ON Position
    • See label #9 on the unit.SIMPSON-ALH3228-Cleaning-Powered-3400-PSI-Gas-Pressure-Washer-FIG-4
    1. Move the Choke to the CLOSED Position
    • See label #10 on unit.
    1. Pull the Recoil Starter Grip
    • Pull the recoil starter grip to start the engine. See label #11 on unit.
    1. Move the Choke to the OPEN Position
    • Gradually move the Choke to the OPEN Position after engine starts. See label #12 on unit.SIMPSON-ALH3228-Cleaning-Powered-3400-PSI-Gas-Pressure-Washer-FIG-5

WARNING: This Guide is not a substitute for reading the operator’s manual. User must read and understand operator’s manual before using this product.

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.SIMPSON-ALH3228-Cleaning-
Powered-3400-PSI-Gas-Pressure-Washer-FIG-6

BASIC ELEMENTS OF A PRESSURE WASHER (FIG. 1)

  • High-Pressure Pump: Increases the pressure of the water supply.
  • Engine: Drives the high-pressure pump. Refer to the Engine Owner’s Manual for location and operation of engine controls.
  • High-Pressure Hose: Carries the pressurized water from the pump to the gun and spray wand.
  • Spray Gun: Connects with spray wand to control water flow rate, direction, and pressure.
  • Quick-Connect Spray Wand: This allows the user to quickly change out high-pressure nozzles. See How To Use Spray Wand instructions in the Operation section.
  • Detergent Siphon Hose (not shown): Feeds cleaning agents into the pump to mix with the water. See How To Apply Chemicals/Cleaning Solvents instructions in the Operation section.
  • Handle
  • Frame
  • Pump Outlet
  • Pump Inlet
  • Quick Connect Nozzles
  • Nozzle Holder

BASIC ELEMENTS OF AN ENGINE
Refer to the Engine Owner’s Manual for location and operation of engine controls. Choke Control: Opens and closes carburetor choke valve.

  • Starter Grip: Pulling starter grip operates recoil starter to crank engine.
  • Engine Switch: Enables and disables ignition system.

ASSEMBLY INSTRUCTIONS (FIG. 2–4)

  1. 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. Slide the handle assembly (G) onto

  3. 2A K the frame (H) and secure with saddle bolts and knobs. G
    NOTICE: Risk of personal injury. Avoid placing hands between handle and frame when assembling to prevent pinching.

  4. Remove colored quick connect nozzles (K) from plastic bag and insert them into the nozzle holder (L).
    NOTE: Nozzles are color coded to match colored nozzles on panel.

  5. Connect wand (E) to gun (D). Tighten securely.

  6. Attach high-pressure hose (C) to the gun (D). Tighten se curely.SIMPSON-ALH3228-Cleaning-Powered-3400-PSI-Gas-Pressure-Washer-FIG-8

NOTICE: The engine is shipped without oil. Before starting 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.

NOTICE: The high-pressure pump was filled with oil at the factory. Always check oil level before using (refer to Maintenance for more information).

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.
  • CU: Cleaning Units. GPM multiplied by PSI equals CU.
  • 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.
  • NOTICE: Allowing the unit to run for more than two minutes without the gun trigger being pulled could cause overheating and damage to the pump. Do not let the pressure washer run for more than two minutes in Bypass Mode. Turn off the engine and relieve the pressure in the gun during these extended situations.
  • Thermal Relief Valve (Q, Fig. 5): 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.
  • 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 Featured

PRESSURE ADJUSTMENTS

The pressure setting is preset at the factory to achieve op ti mum pres sure 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 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 spray pattern. Refer to the following chart to choose the correct nozzle for the job to be performed .SIMPSON-ALH3228-Cleaning-Powered-3400-PSI-Gas-Pressure-Washer-
FIG-10

CHANGING NOZZLES ON SPRAY WAND (FIG. 6)
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 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 (E) back and insert nozzle (K).
  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 gun trigger.

HOW TO APPLY CHEMICALS/CLEANING SOLVENTS (FIG. 7)
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:

  1. Ensure detergent siphon hose (F, Figure 9) is attached F 7 to a barbed fitting location near high-pressure hose connection of pump as shown.

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

  3. Install low pressure (black) nozzle into quick connect fitting of spray wand, see How To Use Spray Wand paragraph in this section.

  4. After the use of chemicals, place the detergent siphon hose into a container of clean water and draw clean water through a 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. 8–11)

  • 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 location 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 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 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 water supply off while the pressure washer engine is running or damage to the pump will result.
  • DO NOT stop spraying water for more than two minutes at a time. The pump operates in bypass mode when spray gun trigger is not pressed. If 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, please contact our customer service department at www.simpsoncleaning.com Prior to starting, refer to your engine manual for 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.
    NOTICE: 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. Refer to Engine Owner’s Manual for the correct procedure.

  3. heck pump oil level. The oil level should come to the dot in the middle of the sight glass. Refer to the Pump paragraph under Maintenance.

  4. 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.

  5. Verify the filter screen (O) is in water inlet of pump.
    NOTE: Convex side faces out.

  6. connect water source (N) to pump inlet (J).
    NOTE: The water source must provide a minimum of 5 gallons per minute at 20 PSI.

  7. Connect high-pressure hose (C) to pump outlet (I).SIMPSON-ALH3228-Cleaning-Powered-3400-PSI-Gas-Pressure-Washer-FIG-14
    WARNING: To reduce the possibility of contamination always protect against backflow when connected to a potable water system.

  8. 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.

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

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

  11. Start engine. See Engine Owner’s Manual for 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.
    Note: If the oil level in the engine is low, the engine will not start. If the engine does not start, check the oil level and add oil as needed.

  12. 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.

  13. Release trigger to stop the water flow.
    WARNING: Risk of injury from the spray. Always engage the trigger lock (P) 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 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 water source off.

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

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

MAINTENANCE

  • WARNING: Risk of 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 (FIG. 12)
NOTE: The Pump was filled with oil at the factory. The preferred oil is SIMPSON® Premium Pump Crankcase Oil. If this oil is not available, an SAE 15W-40 oil may be used. Change the pump oil after the first 50 hours of operation and every 100 hours thereafter, or every 3 months.

TO CHECK OIL
The oil level should come to the dot in the middle of the sight glass (AA).

HOW TO CHANGE PUMP OIL

  1. Loosen pump oil fill plug (BB).
  2. Place a container under the pump oil drain plug (CC).
  3. Remove the pump oil drain plug.
  4. After the oil is drained, replace the pump oil drain plug. Tighten securely.
  5. Refill pump using SIMPSON® Premium Pump Crankcase Oil. If this oil is not available, an SAE 15W-40 oil may be used.
  6. Replace the pump oil fill plug and tighten it securely. If there is a problem with the pump contact us at www.simpsoncleaning.com

CONNECTIONS
Connections on pressure washer hoses, gun and spray wand should be cleaned regularly and lubricated with light oil or lithium grease to prevent leakage and damage to the o-rings.

NOZZLE CLEANING (FIG. 13)
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 trigger on gun handle to relieve any water pressure.
  3. Disconnect the spray wand from the gun.
  4. Remove the high-pressure nozzle (K) from the spray 13 wands. Remove any obstructions with the nozzle cleaning tool provided and backflush with clean water.
  5. Direct water supply (N) into nozzle to backflush loosened particles for 30 seconds.
  6. Reassemble the nozzle to the wand.
  7. Reconnect spray wand to gun and turn on the water supply.
  8. Start pressure washer and place spray wand into high pressure setting to test.

CLEAN THE WATER INLET FILTER (FIG. 8)
This screen filter should be checked periodically and cleaned if necessary.

  1. Remove filter by grasping end and removing it from water inlet of pump.
  2. Clean filter by flushing it with water on both sides.
  3. Re-insert filter into water inlet of the pump. NOTE: Convex side faces out.

NOTE: Do not operate the pressure washer without the filter properly installed.

STORAGE

ENGINE
Consult the Engine Owner’s Manual for the manufacturer’s recommendations for storage.

PUMP
The manufacturer recommends using SIMPSON® / POWERWASHER® Pump Guard or equivalent when storing the unit for more than 30 days and/or when freezing temperatures are expected. SIMPSON® / POWERWASHER® Pump Guard is environmentally friendly.

NOTE: Using 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 SIMPSON® / POWERWASHER® Pump Guard or equivalent. Other products could be corrosive and/or contain alco-hol which may cause pump damage.

PRESSURE WASHER

  1. Drain all water from the high-pressure hose and wrap it onto 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.

NOTICE: The use of any other accessory not recommended for use with this tool could be hazardous. Use only accessories rated equal to or greater than the rating of the pressure washer.

SPECIFICATIONS

  • Model ALH3228
  • PSI Max* 3200 PSI
  • GPM Max* 2.8 gpm
  • High Pressure Hose 50 ft. (15.24 m)
  • Presure of Inlet Water 20–100 PSI
  • Inlet Water cold tap (100 °F max)
  • Soap Consumption Rate 10% max
    • Rated Pressure and Rated Water Flow is within manufacturing tolerance of (+/- 10%). In a continued commitment to improve quality, the manufacturer reserves the right to make component changes, design changes, or specification changes when necessary and without notice.

Service Information

Do not return this product to your retailer. Please contact our customer service department at www.simpsoncleaning.com

LIMITED WARRANTY

The manufacturer of this product agrees to repair or replace designated parts that prove defective within the warranty period listed below at the manufacturer’s sole discretion. Specific limitations/extensions and exclusions apply. This warranty covers defects in material and workmanship and not parts failure due to normal wear, depreciation, abuse, accidental damage, negligence, improper use, maintenance, water quality or storage. To make a claim under the terms of the warranty, all parts said to be defective must be retained and available for return upon request to a designated Warranty Service Center for warranty inspection. The judgments and decisions of the manufacturer concerning the validity of warranty claims are final. These warranties pass through to the end user and are non-transferable. As a factory-authorized and trained Warranty Service Center, the factory will honor the terms of all component warranties and satisfy claims of the appropriate warranty provisions. Normal wear items include, but are not limited to, valves and seals, which are not covered by this warranty.

This warranty replaces all other warranties, express or implied, including without limitation any warranties of merchantability or fitness for a particular purpose, and all such warranties are hereby disclaimed and excluded by the manufacturer. The manufacturer’s warranty obligation is limited to repair and replacement of defective products as provided herein and the manufacturer shall not be liable for any further loss, damages, or expenses – including damages from shipping, accident, abuse, acts of God, misuse, or neglect. Neither is damage from repairs using parts not purchased from the manufacturer or alterations performed by non-factory authorized personnel. Failure to install and operate equipment according to the guidelines put forth in the instruction manual shall void the warranty. This warranty does not cover the following: machines used for rental purposes, damage resulting from shipping (claims must be filed with freighter), accident, abuse, act of God, misuse, or neglect. Neither is damage from repairs or alterations performed by non-factory authorized personnel or failure to install and operate equipment according to the guidelines put forth in the instruction manual. The manufacturer will not be liable to any persons for consequential damage, for personal injury, or for commercial loss.

Warranty does not apply to failures due to :

  • Freight damage
  • Damage due to chemical deterioration, scale build up, rust, corrosion or thermal expansion
  • Freeze damage
  • Damage caused by parts or accessories not obtained from an authorized dealer or not approved by the manufacturer.
  • Normal wear of moving parts or components affected by moving parts.

engaging
Covered by engine manufacturer warranty. See engine manual.

High-Pressure Pump (defects in material and workmanship)
Two (2) years from date of purchase.

The frame (defects in material and workmanship)
Ten (10) year from date of purchase.

OTHER COMPONENTS (defects in material and workmanship)
Includes nozzles, hoses, spray guns, wands, tires, feet Ninety (90) days from the date of purchase.

troubleshooting guide

OPERATIONAL ISSUE POSSIBLE CAUSE SOLUTION

Engine will 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 gun trigger to relieve pressure
Choke lever in the “No Choke” position| Move choke to the “Choke” position
Spark plug wire not attached| Attach spark plug wire
Engine switch in OFF position.| Place engine switch in 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 how to Use Spray Wand instructions in the Operation Section
Low water supply| Water supply must be at least 5 gpm @ 20 PSI
Leak at high pressure hose fitting| Repair leak. Apply sealant tape if necessary
Nozzle obstructed| See Nozzle Cleaning instructions in the Maintenance section
Water filter screen clogged| Remove and clean filter. See Cleaning Water Inlet filter paragraph in the Maintenance section for the correct procedure
OPERATIONAL ISSUE| POSSIBLE CAUSE| SOLUTION
---|---|---
| 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 water source off. Re-connect water source to pump inlet and turn on water source. Squeeze trigger to remove remaining air

Choke in the “Choke” position| Move choke to the “No

Choke” position

High pressure hose is too long| Use high pressure hose under

100 feet (30 m)

Will not draw chemicals| Spray wand not in low pressure| See how to Use Spray Wand paragraph in the Operation Section
Chemical filter clogged| Clean filter
Chemical screen not in cleaning solution| Make sure end of detergent siphon hose is fully submerged into cleaning solution
Chemical too thick| Dilute chemical. Chemical should be the same consistency as water
Will not draw chemicals| Pressure hose is too long| Lengthen water supply hose instead of high pressure hose
Chemical build up in chemical injector| Please contact our customer service department at www.simpsoncleaning.com
No or low pressure

(after period of normal use)

| Worn seal or packing| Please contact our customer service department at www.simpsoncleaning.com
Worn or obstructed valves| Please contact our customer service department at

www.simpsoncleaning.com

Worn unloader piston| Please contact our customer

service department at www.simpsoncleaning.com

Water leaking at gun/spray wand

connection

| Worn or torn o-ring| Check and replace
Loose hose connection| Tighten
OPERATIONAL ISSUE| POSSIBLE CAUSE| SOLUTION
---|---|---
Water leaking at pump| Loose connections| Tighten
Piston packings worn| Please contact our customer service department at www.simpsoncleaning.com
Worn or torn o-ring| Please contact our customer service department at www.simpsoncleaning.com
Pump head or tubes damaged from freezing| Please contact our customer service department at www.simpsoncleaning.com
Pump pulsates| Nozzle obstructed| See Nozzle Cleaning paragraph in the Maintenance section for the correct procedure
Oil leaking at pump| Oil seals worn.| Please contact our customer service department at www.simpsoncleaning.com
Loose drain plug| Tighten
Worn drain plug o-ring| Check and replace
Worn fill plug o-ring| Check and replace
Pump overfilled| Check for correct amount
Incorrect oil used| Drain and fill with correct amount and type of oil
Vent plug is clogged| Clean vent plug; blow air through it to remove any blockage. If problem persists, replace plug
Air filter filled with oil| Clean and/or replace filter element. Refer to Engine Owner’s Manual for correct procedure.

Internet Address: www.simpsoncleaning.com  Warranty Registration via Internet Assembled in U.S.A with domestic and foreign components

References

Read User Manual Online (PDF format)

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