Simpson WS4050V-S - Pressure washer

WS4050V-S - Pressure washer Simpson - Free user manual and instructions

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Product Type High Pressure Washer
Brand Simpson
Model WS4050V-S
Fuel Unleaded gasoline (87 octane min, up to 10% ethanol)
Engine Type 4-stroke
Pump Type AAA™ or CAT Pumps® (varies by configuration)
Starting Electric (U1 battery required)
Working Pressure Up to 4050 PSI (estimate based on model)
Min. Water Flow 5 GPM at 20 PSI (supply)
Fuel Tank Capacity Portable tank (capacity not specified)
Recommended Engine Oil SAE 15W-40 or Simpson Premium
Recommended Pump Oil Simpson Premium pump sump oil or SAE 15W-40 (AAA pumps); non-detergent hydraulic oil ISO68 (CAT pumps)
Nozzles Included Red (0°), Yellow (15°), Green (25°), White (40°), Black (soap)
Safety Trigger lock, thermal safety valve, low oil level detector, automatic shut-off
Warranty Pump: 7 years, Frame: 10 years, Accessories: 90 days
Customer Service 1 877 362-4271 / cservice@fna-group.com
Pump Maintenance Oil change every 50h then 100h or 3 months
Freeze Protection Simpson pump protector (sold separately) recommended
High Altitude Use Requires specific carburetor kit above 5000 ft
Manual Available French, English (downloadable PDF)

Frequently Asked Questions - WS4050V-S Simpson

What type of gasoline to use?
Use clean, fresh unleaded gasoline with a minimum octane rating of 87. Do not use gasoline containing more than 10% ethanol (E15, E20, E85 prohibited).
How to drain the pump oil?
Loosen the pump oil fill cap, place a container under the drain plug, remove the drain plug, let the oil drain, then replace the plug. Fill with Simpson Premium pump sump oil or SAE 15W-40 for AAA pumps, or non-detergent hydraulic oil ISO68 for CAT pumps.
Engine won't start, what to do?
Check oil level (low level sensor may block), fuel, spark plug, engine switch to ON, and purge water pressure by pressing the trigger. Consult the engine guide for troubleshooting.
How to purge air from the pump?
After connecting all hoses, turn on cold water supply, point the gun in a safe direction and hold the trigger depressed for at least 30 seconds until water flows steadily.
What periodic maintenance is required?
Before each use, check for leaks, loose parts, and water inlet filter. Drain pump oil after 50h then every 100h or 3 months. For the engine, follow the engine guide. Clean nozzles regularly.
How to protect the pump from freezing?
Use the Simpson pump protector (sold separately). Screw the adapter into the pump inlet, press the button until fluid comes out of the high pressure outlet. This removes water and lubricates the pump.
What is the warranty on this pressure washer?
High pressure pump: 7 years (parts and labor), Frame: 10 years, Accessories (nozzles, hoses, gun): 90 days. The engine warranty is covered separately by the engine manufacturer.
Can chemical detergents be used?
Yes, but only approved detergents. Use the black nozzle (soap) and always rinse the system with clean water after use. Never use chlorine or flammable liquids.
How to store the unit for more than two months?
Drain all fuel, change engine oil, remove spark plug, pour 15 ml of new oil into the cylinder and turn slowly. Treat pump with freeze protection. Store in a clean, dry place.
How to contact customer service?
Call 1 877 362-4271 or email cservice@fna-group.com. Have your model and serial number ready.

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USER MANUAL WS4050V-S Simpson

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Simpson WS4050V-S - 1

LOOK BEFORE YOU PUMP!

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READ THIS MANUAL CAREFULLY BEFORE OPERATION

Failure to follow the instructions and safety precautions in this manual can result in property damage, serious injury and/or death.

If your pressure washer is not working or if there are parts missing or broken, please DO NOT RETURN IT TO THE PLACE OF PURCHASE. Contact our Customer Service Department by calling 1-877-362-4271 or emailing cservice@fna-group.com

SAVE THIS MANUAL FOR FUTURE REFERENCE

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

THIS PAGE WAS INTENTIONALLY LEFT BLANK

SAVE THIS MANUAL FOR FUTURE USE

Keep this manual for future reference. This manual should be considered a permanent part of the product and stay with it. This manual should be available to anyone operating the product(s) it covers. This manual should remain with the product(s) it covers if sold to a new owner. If the manual becomes damaged, lost, or otherwise unusable, you may download a new copy from the product pages at www.simpsoncleaning.com or contact customer support by calling 1-877-362-4271.

Write down the model number, serial number, and purchase date of this product in the spaces provided below then keep this manual with the purchase receipt(s) for future reference.

Model Number:

Serial Number:

Purchase Date:

TABLE OF CONTENTS

4SAFETY INSTRUCTIONS
Read this Manual Before Operating4
Additional Instructions4
Hazard Alert Symbols4
DISCLAIMERS 5
PERSONAL PROTECTIVE EQUIPMENT5
UNPACKING 6
ASSEMBLY 6
Assemble the Spray Gun6
Adding the Pump Breather Cap6
Place Nozzles in Holders7
BATTERY CONNECTIONS 7
COMPONENT LOCATIONS 8
CONNECTING HOSES 10
PURGING AIR FROM THE PUMP 11
NOZZLES 12
Nozzle Selection12
Nozzle Installation12
USING CHEMICALS13
OPERATING CHECKLIST14
Location14
High Altitude Operation15
Operating Conditions15
Checking the Engine Oil16
Checking Fuel18
STARTING THE ENGINE 20
SHUTTING OFF THE ENGINE 21

Terms

Preparation

Pressure Washing

Adjusting Pressure

22OPERATION TIPS

22

22

22

22

23TROUBLESHOOTING

25MAINTENANCE

25

25

25

26

26

27

28

28STORAGE AND TRANSI

28

29

29

Maintenance

Cleaning the Pressure Washer

Connections

Nozzle Cleaning

Water Inlet Filter

Pump Maintenance

Engine Maintenance

Storing for Two Months or Less

Storing for More Than Two Months

Transportation

® PUMP GUARD

30USING SIMPSON

31WARRANTY

Simpson WS4050V-S - 31WARRANTY - 1

READ THIS MANUAL BEFORE OPERATING

This manual contains important safety information and instructions. Do not operate this product until you have read, and completely understand all safety, operation, and maintenance instructions listed in this manual. Failure to follow the information contained in this manual will result in property damage, injury, and/or death.

NOTE: The warnings and precautions discussed in this manual cannot cover all conditions and situations that may occur. The operator must understand awareness and caution are factors which cannot be built into this product and so must be exercised by the operator.

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ADDITIONAL INSTRUCTIONS

Along with this manual, be sure to read any additional instructions provided both on and with the product, attached equipment, accessories, and the engine powering the product. Pay careful attention to all additional safety rules and instructions on proper startup, operation, and shutdown procedures. Always use any recommended protective apparel that may be needed to operate the equipment safely.

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HAZARD ALERT SYMBOLS

Be sure to understand the safety symbols and definitions listed below. Each symbol contains one of four words: DANGER, WARNING, CAUTION, NOTICE, indicating different levels of hazard severity. These symbols are used throughout this manual and are followed information about a specific hazard, the consequences of the hazard, and instructions on how to avoid the hazard. Failure to heed these symbols and follow the instructions provided with them will result in property damage, injury, and/or death.

Simpson WS4050V-S - HAZARD ALERT SYMBOLS - 1

Indicates an imminently dangerous situation, which if not avoided, will result in property damage, serious injury, and/or death.

Simpson WS4050V-S - HAZARD ALERT SYMBOLS - 2

Indicates a potentially hazardous situation, which if not avoided, could result in property damage, serious injury, and/or death.

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Indicates a hazardous situation, which if not avoided, could result in property damage and/or minor to moderate injury.

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Indicates information considered important, but not directly hazard related.

NOTICE

This appliance is not intended to be used by persons (including children) with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.

Children should be supervised to ensure that they do not play with the appliance.

Simpson WS4050V-S - NOTICE - 1

CALIFORNIA PROPOSITION 65 WARNING

This product and the engine exhaust can expose you to chemicals which are known to the state of California to cause cancer, birth defects, or other reproductive harm. For more information on California Proposition 65, go to www.P65Warnings.ca.gov.

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POLYCYCLIC AROMATIC HYDROCARBON WARNING

The air filter element and air box assembly may contain polycyclic aromatic hydrocarbons (PAHs). Some PAHs may cause cancer. To avoid exposure to PAHs, wear gloves when performing air filter maintenance.

DISCLAIMERS

  • All information in this publication was based on the latest product information available at the time of printing. The FNA Group reserves the right to update, change, and/or improve the product and this document at any time, without notice, and without incurring any obligation.
  • This manual may cover more than one machine. The pictures and figures in the manual should be used for reference only. There may be differences between your product and the pictures, drawings, and diagrams in this manual.

PERSONAL PROTECTIVE EQUIPMENT (PPE)

It is important to understand what personal protective equipment (PPE) should be utilized when using your pressure washer. Below is a list of PPE items that should be utilized at all times when using the pressure washer.

Hearing - Ear plugs or muffs to protect your hearing.

Vision - Safety glasses or goggles to protect your eyes.

Clothing - Long pants to protected your legs from flying debris.

Shoes - Shoes that fully cover your feet to protect against debris and over spray.

UNPACKING

Follow the steps outlined in this section to unpack and assemble your pressure washer. If you have any questions regarding the unpacking or assembly of your pressure washer, please have your model number and serial number ready, then contact customer support at 1-877-362-4271 or email cservice@fna-group.com.

  1. Place the shipping carton on a solid, flat surface.
  2. Carefully cut the top of the carton open.
  3. Carefully cut each corner of the carton from top to bottom.
  4. Lay each side of the carton flat on the ground.
  5. Remove the contents of the carton.

ASSEMBLY

Assemble the spray gun

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text_image the gun. Be careful Using an adjustable

Hand thread the lance clockwise into the gun. Be careful not to cross-thread the gun and lance. Using an adjustable wrench, tighten the lance by placing the wrench on the flats of the nozzle quick-connector.

WARNING! The threads on the lance and gun coupler can be easily cross threaded resulting in an improper assembly. An improper assembly of the gun and lance can result in personal injury. Do not use if the threads on the gun coupler and or lance are cross threaded.

Adding the pump breather cap (if applicable)

A RED shipping plug is in the pump that must be replaced with a BLACK breather cap. The plug is easy to replace with the following steps:

  1. Using a bladed screw driver, remove the RED shipping plug from the top of the pump.
  2. Hand thread the BLACK breather cap into the pump.
  3. Snug the cap with your fingers.

RED shipping plug

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BLACK breather cap

Place nozzles in holders

Place the nozzles into the nozzle holder located on the baseplate of the pressure washer.

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OPERATING CHECKLIST

Attempting to start the engine incorrectly or using the pressure washer incorrectly can result in engine and/or pressure washer damage, and may cause serious injury or death. To avoid these hazards, be sure to read, understand, and follow the steps outlined in the OPERATING CHECKLIST section of the owner's manual before starting the engine, and follow all the guidelines for proper use of the pressure washer.

BATTERY CONNECTIONS

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RISK OF ACID BURNS

The pressure washer does not come with a battery. You must install a U1 sized battery before using the pressure washer.

  1. Remove the cover from the battery box.
  2. Carefully place the battery into the battery box.
  3. Place the red, positive (+) battery cable onto the positive (+) battery post. Tighten.
  4. Place the black, negative (-) battery cable onto the negative (-) battery post. Tighten.
  5. Place the cover back onto the battery box.

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WARNING! Always remove the black, negative (-) battery cable first and always connect the black, negative (-) battery cable last.

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text_image 1 2 3 4
  1. Belt guard
  2. Oil filter
  3. Engine oil drain plug
  4. Spark plug
  5. Nozzle quick connector
  6. Engine choke
  7. Engine key start
  8. Engine oil dipstick
  9. Unloader control knob
  10. Spray gun
  11. Spray gun trigger
  12. Spray gun trigger lock

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text_image 18 19 20 4 21 22 23 24
  1. Engine fuel filter
  2. Battery box
  3. Thermal relief valve
  4. Fuel filler cap
  5. Outboard fuel tank
  6. High-pressure pump outlet
  7. Garden hose coupler & water inlet filter
  8. Oil filler cap
  9. Nozzle holder
  10. Fuel line quick connector
  11. Pump
  12. Wheel

CONNECTING HOSES

Before connecting a water supply hose, be sure the water supply is capable of providing an uninterrupted source of clean, cold water at a minimum rate of 5 gallons per minute (GPM) and 20 pounds per square inch (PSI) of pressure. Once a proper water supply is secured, follow the instructions below to connect both the water supply and high-pressure hoses to the pressure washer.

  1. Verify the inlet screen is free of any dirt or debris and is in place with the convex side facing out.

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  1. Turn on the water supply and run for 30 seconds to purge any debris from the supply hose. Then, turn off the water supply and thread the water supply hose into the pump inlet.

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natural_image Diagram of a connector with threaded ends and a hexagonal nut inserted (no text or symbols)
  1. While pulling back on the pump outlet collar, insert the high-pressure hose connector then release the collar. Gently tug on the hose to make sure it is locked.

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natural_image Diagram showing a pipe fitting before and after modification, with no text or symbols present.
  1. While pulling back on the high-pressure hose outlet collar, insert the spray gun connector then release the collar. Gently tug on the hose to make sure it is locked.

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NOTICE

PUMP PURGING

Running a pressure washer pump without water will severely damage the pump seals and other internal components. To avoid this hazard, make sure your water supply is uninterrupted and at least 5 GPM at 20 PSI, and always purge the air your pressure washer pump before starting the engine.

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WARNING:

INJECTION INJURY

The high pressures created by a pressure washer can cause fluid injection injuries, severe lacerations, amputations, and / or death. To avoid these hazards, always aim the spray gun and lance in a safe direction when using the pressure washer and never attempt to touch a leak in a high-pressure hose or fitting.

A pressure washer pump is designed to operate with water flowing through it. Water lubricates and cools the internal components of the pump. Running a pressure washer pump without water will severely damage the pump seals and other internal components. Damage caused by running a pressure washer pump without water is not covered under warranty. Be sure to follow the instructions below to correctly purge the air from your pressure washer pump before starting the engine.

  1. Connect all the hoses by following the steps outlined in the CONNECTING HOSES section of this manual then turn on the cold water source.
  2. Aim the spray gun in a safe direction then squeeze and hold the trigger for at least 30 seconds or until the water runs steady and all the air is purged from the pump and hoses.
  3. Check hoses and connections for leaks. If leaks are found, turn off the machine, aim the spray gun in a safe direction and squeeze the trigger to relive any built up pressure in the system. Never attempt to touch a leak in a high-pressure hose or fitting. Never attempt to repair a high-pressure hose.

Engage the trigger lock.4.

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Nozzle Selection

The nozzles supplied with the pressure washer have specific spray patterns designed to clean different surfaces. Using the incorrect nozzle can damage surfaces. Refer to the table below to select the correct nozzle before using the pressure washer. NOTE: The selection of nozzles included may vary with pressure washer models.

Color5-N-1(if equipped)Spray PatternSurfacesUses
RedSimpson WS4050V-S - Nozzle Selection - 1PRSpot cleaning hard, unpainted surfaces and high-reach areasUnpainted metal and concreteDO NOT use on wood.
YellowSimpson WS4050V-S - Nozzle Selection - 2PRI15°Intense cleaning of unpainted surfacesGrills, driveways, concrete and brick walkways, unpainted brick and stucco
GreenSimpson WS4050V-S - Nozzle Selection - 3PR25°Standard cleaning nozzle for most applicationsYard tools, sidewalks, lawn furniture, unpainted siding, stucco, gutters, eaves, concrete, and brick surfaces
WhiteSimpson WS4050V-S - Nozzle Selection - 4PRI40°Cleaning painted or delicate surfacesAuto, truck, RV, marine, wood, painted brick, painted stucco, vinyl, and painted siding
Black SoapSimpson WS4050V-S - Nozzle Selection - 5IApplies cleaning solutionsSafe on all surfaces. Always verify compatibility of cleaning solution(s) prior to use.

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NOTICE

SPRAY DAMAGE

High-pressure spray can damage plants and other surfaces. To avoid causing damage, cover plants before spraying near them, refer to the Nozzle Selection table in this manual for correct nozzle selection, and test surfaces before spraying to make sure they are strong enough to withstand high-pressure spray.

Nozzle Installation

If the engine is running, make sure the trigger lock is in the locked position before removing and installing nozzles.

To place a nozzle into the spray wand, pull the quick-connect coupler back, insert the nozzle, then release the coupler allowing it to snap back in place. Once installed, pull on the nozzle to make sure it secure.

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text_image NOTICE

VOLATILE LIQUIDS

Pressure washing with volatile, flammable, or corrosive liquids could cause pressure washer damage, fire, or explosion resulting in severe injury and/or death. To avoid these hazards, use only approved soaps and chemicals, do not attempt to pressure wash with volatile, flammable, or corrosive liquids, and NEVER use bleach.

  1. Ensure that the outboard soap injector is connected to the pump high-pressure output with the high-pressure hose connected to the soap injector.

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text_image High-pressure washer connector Siphon hose High-pressure hose connector Soap injector
  1. Place the filtered end of the soap hose into a container of soap.

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text_image SOAP
  1. If the engine is running, make sure the trigger lock is in the locked position before removing and installing nozzles.

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natural_image Illustration of two hands holding a small object with an arrow pointing to it (no text or symbols present)
  1. Insert the black nozzle into the spray wand per the Nozzle Installation section of this manual. NOTE: Soaps will not siphon if the black soap nozzle is not installed on the spray wand.

  2. After using soap, place the filtered end of the soap hose into a container of clean water and run pressure washer drawing clean water through the hose and pump until the system is thoroughly rinsed. If soap or other chemicals remain in the pump, the pump could be damaged. Pump damage from soap or chemical residue is not covered under warranty.

Location

Place the pressure washer on a level surface outside in a well-ventilated area before operating. Keep all flammable materials at least five feet away from all sides of the product.

  • Never use pressure washer inside a house, garage, or any other kind of enclosure even if doors and windows are open. Run engine outside at least 20 feet (6 meters) away from windows, doors, and vents. Carefully consider wind direction and air currents when using pressure washer outside to avoid breathing in engine exhaust.
  • Following the manufacturer's instructions and recommendations, install battery operated carbon monoxide alarms in any occupied buildings near the running engine.
  • If you experience headache, nausea, dizziness, sleepiness, or weakness while pressure washer is running, move to fresh air and seek medical attention immediately.

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TOXIC FUMES

Engine exhaust contains carbon monoxide, an odorless, colorless, poisonous gas. Running an engine indoors will kill you in minutes. Never use this product inside a house, garage, or any other kind of enclosure even if doors and windows are open. Run engine outside at least 20 feet (6 meters) away from windows, doors, and vents. Carefully consider wind direction and air currents when using this product outside to avoid breathing in engine exhaust. Always use a carbon monoxide detector in any occupied buildings near the running engine.

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High Altitude Operation

This engine will have proper engine performance and emission control when it is operated at or below an altitude of 5000 feet (1524 meters). This engine requires a high-altitude carburetor kit to ensure proper engine performance and emission control when operated at altitudes above 5000 feet (1524 meters). Operating the machine with the wrong engine configuration above 5000 feet (1524 meters) may increase its emissions, decrease fuel efficiency, and hurt performance. To obtain a high altitude carburetor kit, contact your nearest authorized service center.

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NOTICE

ALTITUDE

Operating the engine with a high-altitude carburetor jet kit at an altitude below 5000 feet (1524 meters) will cause the engine to run too hot. Overheating the engine could result in serious engine damage. To avoid this hazard, make sure the correct carburetor kit is installed and the air/fuel mixture is set correctly for your altitude.

Operating Conditions

Before each use, check for loose or damaged parts, leaks, and/or any other condition that may affect proper operation. Repair or replace all damaged and/or defective parts immediately. Always keep all safety guards in place and in proper working order. For safety reasons, the manufacturer recommends all maintenance and repairs be performed by an authorized service center.

Before starting engine, remove any excessive dirt and debris from cooling vents, exhaust, and starter recoil areas. Always operate the pressure washer on a level surface and never move or tip the pressure washer while operating. Use pressure washer only for its intended purpose. If you have questions about the proper use of your pressure washer, please contact customer support at 1-877-362-4271 or cservice@fna-group.com.

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WARNING:

UNTRAINED OPERATION

Untrained adults and children can be seriously injured or killed if allowed to incorrectly operate or play with running pressure washer. To avoid these hazards, be sure anyone operating the pressure washer receives proper instructions, understands safe operation, and has read the owner's manual before operating this product. Do not let children operate the pressure washer without parental supervision. Keep children and pets away from the pressure washer while it is running. Always turn off the pressure washer before leaving the area.

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WARNING:

Failure to inspect this product before use could create a hazardous situation resulting in product damage, serious injury, and/or death. To avoid these hazards, inspect the pressure washer before each use. Check for loose or damaged parts, signs of oil or fuel leaks, missing guards, plugged cooling vents, or any other condition that may affect proper operation. Repair or replace all damaged or defective parts and keep all safety guards in place and in proper working order before using the pressure washer.

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INJECTION INJURY

The high pressures created by a pressure washer can cause fluid injection injuries, severe lacerations, amputations, and / or death. To avoid these hazards, always aim the spray gun and lance in a safe direction when using the pressure washer and never attempt to touch a leak in a high-pressure hose or fitting.

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HOT SURFACES

A running engine produces heat. The surfaces of the engine, other related components, and engine exhaust gas get hot enough to cause mild moderate burns or ignite materials on contact. To avoid burns, do not touch engine surfaces or exhaust gases while operating and allow engine to cool completely before moving, touching, or performing any maintenance. To avoid a fire, keep all flammable materials at least five feet away from all sides of the product.

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MOVING PARTS

This product has many parts that move at high speeds. Moving parts can cause crushing injuries, broken bones, severe lacerations, and/or traumatic amputations. To prevent injury, never place fingers, hands, feet, or other body parts near running engine. Never operate product with covers, shrouds, or other guards removed. Do not wear loose-fitting clothing, dangling drawstrings, or any other hanging items that could become entangled in moving parts while operating. Tie up long hair and remove jewelry before operating.

Checking the Engine Oil

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HOT OIL

Hot oil can cause serious burns. To prevent getting burned when changing or checking the engine oil, wear appropriate gloves and change the oil when the engine is warm but not hot.

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LOW OIL SENSOR

The low oil sensor (if equipped) will automatically stop the engine when the oil level falls below the safe limit. To avoid an unexpected shutdown, check the oil level before each use, fill to the upper limit, and always operate engine on a level surface.

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NOTICE

FILL ENGINE OIL BEFORE USE

The engine is shipped from the factory without oil. Running the engine without oil will result in severe engine damage and void the warranty. To avoid causing engine damage and voiding the warranty, fill the engine with the recommended oil type before starting.

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NOTICE

USE CORRECT ENGINE OIL

Oil is a major factor in the performance and service life of any engine. Using the incorrect oil may damage the engine and void the warranty. To avoid causing engine damage and voiding the warranty, check and change oil as required using the correct engine oil.

  1. Check oil with the pressure washer on a level surface and the engine off.
  2. Remove the oil dipstick; wipe it clean with paper towel.
  3. Insert the clean dipstick into the spout fully.
  4. Remove the dipstick. The oil level should be at, but not above, the full or high mark.
  5. If the oil level is low, add the recommended oil to the crankcase until the level reaches the full or high mark on the dipstick. See the engine manual for the recommended oil.
  6. Place the dipstick back into the spout fully.

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text_image High "full" mark Low mark

Oil dipstick

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text_image DipstickOil filler ca Oil filter Oil drain plug

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Checking Fuel

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REFUELING

Gasoline is highly flammable and gasoline vapors are extremely explosive. Fire and explosions can cause severe burns and/or death. Keep gasoline away from flames, sparks, and other ignition sources. Refuel outdoors in a well-ventilated area with the engine stopped and cool. Wipe up any spilled gasoline and allow engine to dry before starting. Keep a fire extinguisher handy while refueling. Do not operate engine with leaks in the fuel system. Do not store gasoline near other flammable materials.

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NOTICE

OLD GASOLINE

Old gasoline can create deposits that clog fuel systems causing hard starting and poor performance. Damage caused by old fuel is not covered by warranty. To minimize deposits, avoid old fuel related performance issues, and prevent costly repair work, do not use gasoline that is older than 30 days.

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NOTICE

ALCOHOL BLENDS

Using gasoline with an alcohol blend greater than 10% (E10) will damage the engine. Damage caused by using an alcohol blend of 15% (E15), 85% (E85), or any other alcohol blend higher than 10% (E10) is not covered under warranty. To avoid engine damage caused by an alcohol blend that is too high, use gasoline with 10% (E10) alcohol or lower.

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NOTICE

GASOLINE ADDITIVES

The use of fuel system cleaning additives can damage the engine and fuel systems. Damage caused by the use of fuel system cleaning additives is not covered by warranty. To avoid engine and fuel system damage, do not use any fuel system cleaning additives.

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FUEL TANK PRESSURE

Gasoline vapor can build up inside the fuel tank creating pressure. This pressure may increase when the engine is hot from running. Opening the fuel tank under pressure can cause rapid escape of flammable vapors and possible fuel spills that may ignite from contact with hot engine surfaces resulting in burn hazard. To avoid these hazards, always allow the engine to cool for at least 2 minutes before removing fuel cap and loosen the fuel cap slowly to relieve any pressure in the tank.

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NOTICE

DO NOT OVERFILL FUEL TANK

Overfilling the fuel tank can result in carbon canister damage (if equipped), poor engine performance, and void the warranty. To avoid these hazards, do not fill the fuel tank above the maximum level.

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NOTICE

GASOLINE STORAGE

It is important to prevent gum deposits from forming in essential fuel system parts, such as the carburetor, fuel filter, fuel hose or tank during storage. Alcohol-blended fuels (also called gasohol, ethanol, or methanol) attract moisture, which leads to separation and formation of acids during storage. Acidic fuel and gum deposits can damage the engine's fuel system while in storage. Damage caused by the use of old, stale, or contaminated fuel are not covered under warranty.

Simpson WS4050V-S - GASOLINE STORAGE - 1

text_image Fuel hose connector Primer bulb Fuel filler cap Fuel gauge Portable fuel tank
  1. Place the portable fuel tank on the ground behind the pressure washer.
  2. Connect the fuel hose to the pressure washer by use of the quick connector.
  3. Remove the fuel filler cap then proceed to fill the tank until the gauge reaches the FULL mark. Do not use gasoline that is older than 30 days. Use only clean, fresh regular unleaded gasoline with a minimum octane rating of 87. Do not mix oil with gasoline. Do not use gasoline that contains more than 10% ethyl alcohol. E15, E20, and E85 are not approved fuels and should not be used. NEVER fill tank when it is on or in a vehicle; static electricity could cause an explosion.
  4. Place the filler cap back onto the spout, hand thread the cap until snug.
  5. Use the primer bulb to pump gasoline into the engine. Starting the engine without priming the fuel line will cause the engine not to start quickly leading to possible starter damage from excessive cranking.

NOTE: Using a fuel stabilizer (sold separately) when storing gasoline can help prevent problems related to storing ethanol alcohol blended gasoline. Always follow the instructions provided by the fuel stabilizer manufacturer to mix and use correctly.

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OPERATING CHECKLIST

Attempting to start the engine incorrectly or using the pressure washer incorrectly can result in engine and/or pressure washer damage, and may cause serious injury or death. To avoid these hazards, be sure to read, understand, and follow the steps outlined in the OPERATING CHECKLIST section of the owner's manual before starting the engine, and follow all the guidelines for proper use of the pressure washer.

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NOTICE

PUMP DAMAGE

Running the pressure washer for more than two minutes without the spray gun trigger pulled will overheat the pump and possibly cause damage. The thermal relief valve will open and spray water to help cool the pump as it overheats. To avoid overheating the pump, shut off the machine if not being used for longer than two minutes.

Starting the Engine

  1. Complete the steps in the OPERATING CHECKLIST section of this manual before starting the engine. Failure to do so could cause damage to the pump or engine. If needed, refer to your Engine Owner's Manual for specific starting instructions.
  2. Prime the fuel line as described under the CHECKING FUEL section of this manual.

  3. Slide the throttle to the RUN position (if equipped).

  4. Pull the choke out for starting a COLD engine. Push in for a warm engine.

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NOTE: The starting position of the choke will vary depending on the engine temperature. If starting a cold engine, move the choke lever towards the CHOKE position. If starting a warm engine, move the choke lever towards the RUN position.

  1. Turn the key past the ON position to the START position. Allow the engine to start. If the engine does not start after 5 seconds. Release the key and allow the starter to cool for one minute.

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STARTER DAMAGE

Do not try to continuously crank the engine for more than five seconds at one time. If the engine fails to start, allow the starter to cool for one minute before trying to restart the engine. Continuously trying to start the engine will damage the starter.

  1. Once the engine has started, allow the key to return to the ON position.

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text_image ON
  1. Slowly push the choke lever in as the engine warms. If the engine falters, pull the choke out until the engine has warmed up.

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  1. Allow engine to warm for 1-2 minutes before using the product.

SHUTTING OFF THE ENGINE

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NOTICE

PUMP DAMAGE

Turning off the water supply to your pump with the engine running will damage the pump. Damage caused by running the pump without water is not covered under warranty. To avoid this hazard always turn off the engine before shutting off the water supply.

  1. Set the trigger lock on the spray gun.
  2. Slide the throttle to the SLOW position (if equipped).
  3. Turn the engine switch to the OFF position.
  4. Turn off the water supply.
  5. Release the trigger lock then squeeze the spray gun trigger to relieve the pressure in the hose and pump.
  6. Allow the engine to cool completely before handling and storage.

Terms

  • PSI - Pounds per square inch (PSI) is the unit to measure the pressure of water. In relation to a pressure washer, the higher the PSI number, the greater the pressure and stripping power produced.
  • GPM - Gallons per minute (GPM) is the flow rate of water. In relation to a pressure washer, the greater the GPM, the greater the flow or rinsing power produced.
  • CU - Cleaning units express the efficiency of the pressure washer. Cleaning units are calculated by multiply the PSI by the GPM. The higher the CU, the more efficient the pressure washer.

Preparation

  • Read all warning and instructions in this and all manuals that came with the pressure washer.
  • Remove all toys, bikes, lawn furniture, etc. from the work area if they are not to be cleaned.
  • Sweep any loose dirt and debris from the surface you will be pressure washing.
  • Cover nearby plants to avoid damaging them with the pressure washer spray.
  • Use caution when spraying windows. Always use the white, 40^ nozzle and stay at least 4 feet away.
  • Lay tarps down to collect paint chips and other debris blown off by the spray. Exterior paints used before 1977 may contain lead and will produce chips that will need to be collected and disposed of at a hazardous waste facility.

Pressure Washing

  • A wider spray equals faster cleaning, while a tighter spray equals deeper cleaning.
  • Keep the nozzle about 4 feet away from siding to avoid damage.
  • Start washing siding at the bottom and work your way up, then rinse from the top down.
  • Avoid driving water up behind siding.
  • Use overlapping strokes for even cleaning.
    • Work in small areas to keep the soap from drying.
  • Do not aim the nozzle straight at the surface. Hold the wand at a 45^ angle to the surface at a distance that cleans well without causing damage.

Adjusting Pressure

The pressure setting is preset at the factory to achieve optimum pressure and cleaning. If you should need to lower the pressure, it can be accomplished by the following methods.

  • Back away from the surface to be cleaned. The further you position the nozzle from the surface to be cleaned, the lower the pressure to reach the surface.
  • Change to the white, 40^ nozzle. This nozzle produces a lower pressure, wider width spray.

Your unit may be equipped with an additional feature that allows you to adjust the pressure.

To lower the pressure, turn the knob counterclockwise to the desired pressure.

To return the pressure to the factory setting, turn the knob clockwise until it stops.

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NOTE: Do not overtighten the pressure control knob. If overtightened, the knob COULD break causing immediate loss of pressure and costly repairs not covered by the warranty.

ISSUE POSSIBLE CAUSE SOLUTION
Engine will not start.Refer to the Engine Owner's Manual for more engine troubleshooting information.The fuel tank is empty. Add fresh fuel.
Water pressure in the pump is preventing the engine from rotating.Aim the spray gun in a safe direction then pull the trigger to release water pressure in the pump.
Engine choke is in the wrong position.Refer to the STARTING ENGINE section of this manual for the correct choke position.
The spark plug lead is not attached to the plug.Connect spark plug lead.
Engine switch is in the OFF position.Turn the engine switch to the ON position.
Engine fuel valve is turned OFF.Turn fuel valve ON.
Engine oil is low. If the engine is equipped with a Low Oil Sensor, the engine will not start.Check engine oil level. Fill per engine manual.
The pressure washer creates low or no water pressure.There is air trapped in the pump and/or hoses.Refer to the PURGING THE PUMP section of this manual to remove air from the pump and hoses.
Water source is insufficient.Make sure the water source can supply at least 5 GPM at 20 PSI.
The nozzle is clogged.Clean nozzle per the MAINTENANCE section of this manual.
The water inlet screen is clogged.Clean the water inlet screen per the MAINTENANCE section of this manual.
The high-pressure hose is too long.The high-pressure hose should be less than 100 feet in length.
Engine choke is in the CHOKE position.Move engine choke to the NO CHOKE position.
ISSUE POSSIBLECAUSE SOLUTION
Will not draw in detergent.Spray wand not in low pressure.Insert black “soap” nozzle.
Detergent filter clogged.Clean the filter.
Detergent filter is not submerged in the detergent.Make sure the filter end of the detergent siphon hose is fully submerged in the detergent.
Detergent is too thick.Dilute detergent. The detergent should be the same consistency as water.
High-pressure hose is too long.Lengthen the water supply hose and shorten the high-pressure hose.
Detergent is dried inside of the detergent injector.Contact customer service at 1-877-362-4271 or at cservice@fna-group.com
Water leaking at pump.Loose connections.Tighten the connections.
Worn or torn O-ring.Check and replace.
Piston packing worn.Contact customer service at 1-877-362-4271 or at cservice@fna-group.com
Pump head or tubes damaged from freezing.Contact customer service at 1-877-362-4271 or at cservice@fna-group.com
Pump or nozzle pulsates.Nozzle obstructed.Clean nozzle per the MAINTENANCE section of this manual.
Oil leaking from pump.Loose drain plug.Tighten.
Worn drain plug O-ring.Check and replace.
Worn fill plug O-ring.Check and replace.
Pump oil overfilled.Check for correct amount.
Incorrect oil used.Drain and fill with correct type and amount of oil.
Vent plug is clogged.Clean vent plug; blow air through vent to remove blockage. If problem persists, replace the plug.
Oil seals worn.Contact customer service at 1-877-362-4271 or at cservice@fna-group.com

For safety reasons, the manufacturer recommends all pressure washer service and repairs be performed by an authorized service center. All warranty replacements or repairs must be performed by an authorized distribution or service center. To find an authorized service center near you, make a warranty claim, or get authorized warranty repair, call 1-877-362-4271 or email cservice@fna-group.com.

It is the responsibility of the owner and/or operator to have all scheduled maintenance completed before operating the pressure washer. Be sure to follow the inspection and maintenance recommendations as listed in all the manuals that came with this unit.

Maintenance

Before each use, check pressure washer for leaks, loose or damaged parts, and any other condition that may affect proper operation. Be sure all safety guards are in place and in proper working order. Inspect all air vents and cooling slots to ensure they are clean and unobstructed. Repair or replace all damaged or defective parts immediately. For safety reasons, the manufacturer recommends all pressure washer service and repairs be performed by an authorized service center. Never attempt to repair a high-pressure hose.

Cleaning the Pressure Washer

Always clean the pressure washer with the engine off and cool. To clean the pressure washer, first use an air compressor set at no more than 25 PSI to clear dirt and debris from the pressure washer surfaces, vents, and cooling slots. Then, wipe the exterior clean with a damp cloth.

Simpson WS4050V-S - Cleaning the Pressure Washer - 1

NOTICE

CLEANING

Water can damage the pressure washer engine components if allowed to enter through cooling slots or other holes. Damage caused by water intrusion is not covered under warranty. To avoid engine water damage, do not use a pressure washer, garden hose, or any other sources of running water to clean the pressure washer engine, and never submerge the pressure washer engine in any liquids.

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NOTICE

CHEMICAL CLEANERS

Using chemical cleaners and/or corrosive liquids can damage the pressure washer seals and internal components. Damage caused by chemical cleaners and corrosive liquids is not covered under warranty. To avoid these hazard, only used approved cleaning chemicals, never use bleach, and always run clean water through the pressure washer after using cleaning chemicals.

Connections

Hose, spray gun, and pump connections should be cleaned and lubricated with a thin film of lithium grease regularly to prevent o-ring damage and leaks.

Nozzle Cleaning

If a nozzle becomes clogged, the pump may pulsate and spray patterns could change. If the nozzle is not cleaned, excessive pressure may develop possibly damaging the pump, or other accessories. Inspect nozzles before using them and follow the instructions in this section for the proper nozzle cleaning procedure.

  1. Shut off the pressure washer.
  2. Turn off the water supply.
  3. Point the spray gun in a safe direction and squeeze the trigger to relieve water pressure.
  4. Set the trigger lock.
  5. Remove the nozzle from the lance quick connector.
  6. Clear any obstructions from the nozzle by inserting the nozzle cleaning tool provided.

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  1. Rinse any loose debris from the nozzle by directing a running garden hose into the output of the nozzle for at least 30 seconds.

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Water Inlet Filter

Before each use, check the inlet filter and clean by following the steps below. Never operate the pressure washer without the inlet filter properly installed.

  1. Remove the filter from the garden hose coupler.
  2. Use a water from a running garden hose to clean both sides of the filter.

  3. Insert the cleaned filter into the pump inlet with the convex side facing out.

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Pump Maintenance

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 oil after the first 50 hours of operation and every 100 hours thereafter or every 3 months.

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  1. Oil sight glass
  2. Oil fill plug / vent cap
  3. Oil drain plug (not shown)

How to change the pump oil

  1. Loosen the pump oil fill plug / vent cap.
  2. Place a container under the oil drain plug.
  3. Remove the oil drain plug.
  4. After the oil has drained, insert the oil drain plug; tighten securely.
  5. For AAA® pumps, refill with SIMPSON® Premium Pump Crankcase Oil. If this oil is not available, an SAE 15W-40 oil may be used.
    For CAT Pumps ^® ^*** , refill using a non-detergent hydraulic oil (ISO68).
  6. Make sure the oil level meets but does not exceed the dot in the center of the sightglass.
  7. Insert the oil fill plug; tighten securely.
    *** CAT Pumps® is a registered trademark of Diversified Dynamics Corporation.

Engine Maintenance

Before each use, check engine for loose or damaged parts, signs of oil or fuel leaks, and/or any other condition that may affect proper operation. Always keep all safety guards in place and in proper working order. Repair or replace all damaged or defective parts immediately.

For safety reasons, the manufacturer recommends all engine service and repairs (including emission control devices and systems) be performed by an authorized service center. All warranty replacements or repairs must be performed by an authorized distribution or service center. To find an authorized service center near you, obtain information about how to make a warranty claim, or to make arrangements for authorized warranty repairs, please call 1-877-362-4271 or email cservice@fna-group.com.

For all other information on engine maintenance, refer to the engine manual.

STORAGE AND TRANSPORTATION

Storing for Two Months or Less (or when freezing temperatures are expected).

  1. Fill fuel tank per the OPERATING CHECKLIST section of this manual then add a fuel stabilizer per the manufacturer's recommendations. NOTE: Using a fuel stabilizer (sold separately) when storing gasoline may help prevent problems related to alcohol blended fuels in outdoor power equipment engines. Always follow the instructions provided by the fuel stabilizer manufacturer to mix and use correctly.
  2. Complete the steps in the OPERATING CHECKLIST, CONNECTING HOSES, and PURGING AIR FROM THE PUMP sections of this manual.
  3. Start the engine per the STARTING section of this manual and run it for ten (10) minutes to allow the stabilized fuel to circulate through the entire fuel system. Be sure to squeeze the trigger to keep water flowing through the pump and spray gun to avoid overheating.
  4. Turn the engine switch to the OFF position.
  5. Shut off the water supply. Remove the water supply hose.
  6. Squeeze the spray gun trigger to relieve the pressure in the hose and pump then drain the high pressure hose. Disconnect the high-pressure hose from the pump and spray gun.
  7. Allow the engine to cool completely.
  8. Protect the pump by using SIMPSON® Pump Guard per the USING PUMP GUARD section of this manual.
  9. Store the pressure washer in a clean, dry area out of direct sunlight.

Storing for More Than Two Months

  1. Make sure the engine is completely cool.
  2. Remove all the fuel from fuel tank, fuel lines, and carburetor by loosening the drain screw at the bottom of the carburetor, and draining fuel into an appropriate container.
  3. Change the engine oil.
  4. Remove any dirt and debris from the area around the spark plug, then use a spark plug socket or wrench to remove the spark plug.
  5. Pour .5 ounces (15 ml) of new oil into the engine combustion chamber, then slowly crank the engine by pulling the recoil two (2) times to distribute oil and lubricate the cylinder.
  6. Install the spark plug.
  7. Drain the high-pressure hose.
  8. Using SIMPSON Pump Guard or an equivalent is recommended when storing the unit for more than 30 days and/or when freezing temperatures are expected.
  9. Store the pressure washer in a clean, dry area out of direct sunlight.

Transportation

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TRANSPORTATION

Leaving the pressure washer in an enclosed space where temperatures can rise on a transport vehicle may cause fuel to vaporize and possibly explode. Fire and explosions can cause severe burns and/or death. To avoid leaking or vaporizing fuel, secure the pressure washer in a well ventilated area out of direct sunlight and other heat sources and do not transport the pressure washer on rough roads unless the fuel has been drained beforehand.

  1. Turn the engine control switch to the OFF position.
  2. To prevent fuel spillage when transporting, keep the pressure washer upright on a level surface.
  3. When loaded onto a vehicle, secure pressure washer with straps or tie downs to prevent tip over and damage from sliding.

NOTE: Do not operate the pressure washer while it is on the transport vehicle.

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NOTICE

PUMP DAMAGE

Leaving water inside the pump during freezing weather will cause severe damage to the pump. To avoid costly damage, always treat the pump with SIMPSON® Pump Guard to remove the trapped water and to fill the pump with a lubricating, antifreeze solution.

SIMPSON® Pump Guard (purchase separately) is formulated to protect your pump during long-term storage and from freezing damage. Pump Guard should be used throughout the season to keep the seals pliable and well lubricated. Before storing the unit for winter or for when there is a chance of freezing weather, use pump guard to remove all traces of water from the internal cavities while filling them with an antifreeze solution. Pump Guard is insurance for your investment, use it.

Simply use Pump Guard by following these easy steps:

  1. Screw the Pump Guard adapter into the garden hose input on the pump.

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  1. Press and hold down on the button until all the water and the Pump Guard starts to come out of the high pressure port.

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  1. Unscrew the Pump Guard from the pump then prepare the pressure washer for storage as outlined in STORAGE AND TRANSPORTATION.

COMMERCIAL LIMITED WARRANTY

WARRANTY COVERAGE TERMS:

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.

This warranty replaces all other warranties, express or implied, including without limitation and 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 and 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 purchases 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 warranty.

THIS WARRANTY DOES NOT COVER:

Damage resulting from shipping (claims must be filed with freighter), accident, abuse, act of God, misuse, or neglect. This warranty also does not cover 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.

RESPONSIBILITY OF ORIGINAL PURCHASER (INITIAL USER):

To process a warranty claim on your SIMPSON® pressure washer, report the concern to 1-877-362-4271 or cservice@FNA-GROUP.COM 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 Operator's Manual(s).

WHAT THE WARRANTY DOES NOT COVER:

  • Freight damage
  • Damage due to chemical deterioration, salt water, rust or corrosion
  • 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
  • Consumable parts such as: Fuel filter, air filter, spark plug(s), recoil starter rope, oil and lubricant(s)
  • Normal periodic maintenance work such as carburetor cleaning and engine oil draining
  • Freeze damage

ENGINE AND EMISSIONS CONTROL SYSTEM:

Covered by the engine manufacturer warranty. See engine manual for further details.

HIGH-PRESSURE PUMP (DEFECTS IN MATERIAL AND WORKMANSHIP):

Seven (7) years from the date of purchase.

FRAME (DEFECTS IN MATERIAL AND WORKMANSHIP):

Ten (10) years from the date of purchase.

ACCESSORIES (DEFECTS IN MATERIAL AND WORKMANSHIP):

Including nozzles, hoses, spray guns, wands, tires, feet Ninety (90) days from the date of purchase.

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READ THIS MANUAL CAREFULLY BEFORE OPERATION

Failure to follow the instructions and safety precautions in this manual can result in property damage, serious injury and/or death.

SAVE THIS MANUAL FOR FUTURE REFERENCE

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LAVEUR SOUS PRESSION

GUIDE D'UTILISATION ET D'ENTRETIEN

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REGARDEZ AVANT DE POMPER!

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Bouchon de reniflard NOIR

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AVERTISSEMENT:

LISTE DE CONTRÔLE DE FONCTIONNEMENT

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AVISAVI

PURGE DE LA POMPE

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LIQUIDES VOLATILS

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Entretien de la pompe

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REGARDEZ AVANT DE POMPER!

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Simpson WS4050V-S - REGARDEZ AVANT DE POMPER! - 1

Bouchon de reniflard NOIR

natural_image Line drawing of four identical mechanical components mounted on a base plate (no text or symbols)

Simpson WS4050V-S - REGARDEZ AVANT DE POMPER! - 2

Simpson WS4050V-S - REGARDEZ AVANT DE POMPER! - 3

AVERTISSEMENT:

LISTE DE CONTRÔLE DE FONCTIONNEMENT

natural_image Simple line drawing of a device with two ports and two connectors, no text or symbols present
text_image Technical diagram of a mechanical device with numbered parts for identification

Simpson WS4050V-S - LISTE DE CONTRÔLE DE FONCTIONNEMENT - 1

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text_image Technical diagram of a tractor's internal components with numbered parts labeled for identification.
natural_image Technical illustration of a mechanical component with a meshed circular feature and an arrow indicating direction (no text or symbols)
natural_image Technical line drawing of a connector with threaded ends and a hexagonal nut (no text or symbols)
natural_image Technical line drawing showing a pipe fitting before and after assembly (no text or symbols)
natural_image Technical line drawing of a mechanical component with a separate schematic view showing a cable assembly (no text or symbols present)

Simpson WS4050V-S - LISTE DE CONTRÔLE DE FONCTIONNEMENT - 2

AVISAVI

PURGE DE LA POMPE

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natural_image Illustration of two hands holding small objects with a tool, no text or symbols present

Simpson WS4050V-S - PURGE DE LA POMPE - 1

Simpson WS4050V-S - PURGE DE LA POMPE - 2

text_image AVISAVI

LIQUIDES VOLATILS

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Simpson WS4050V-S - LIQUIDES VOLATILS - 1

natural_image Diagram showing two cars inside a house with a red X symbol overlay (no text or symbols on the car bodies)

Simpson WS4050V-S - LIQUIDES VOLATILS - 2

natural_image Simple line drawing of a house with a triangular roof, window, and chimney (no text or symbols)

Simpson WS4050V-S - LIQUIDES VOLATILS - 3

natural_image Green checkmark symbol pointing right with a gray arrow (no text or labels)

Simpson WS4050V-S - LIQUIDES VOLATILS - 4

text_image Diagram showing a directional indicator with a checkmark and a downward arrow, likely representing a physics or engineering concept.
text_image Diagram showing electrical circuit symbols including a current-controlled switch, a lamp, and an upward arrow
natural_image Two diagrams showing magnetic field lines around a positively charged object, one with positive charge and the other with negative charge (no text or symbols)
natural_image Diagram of a mechanical component with a circular end connected to a shaft, showing bidirectional arrow (no text or symbols)
natural_image Diagram showing a connector being inserted into a socket, with no text or symbols present.
natural_image Diagram of a mechanical component with a meshed circular base and an arrow pointing to a cylindrical feature (no text or symbols)

Entretien de la pompe

natural_image Technical line drawing of a mechanical device with a gas cylinder connected to a hose (no text or symbols present)
natural_image Diagram of a mechanical device with a spray can and a downward arrow indicating motion (no text or symbols)
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Product information

Brand : Simpson

Model : WS4050V-S

Category : Pressure washer