Wen PW3400 User manual
3400-PSI CARB COMPLIANT
PRESSURE WASHER
Instruction Manual
IMPORTANT: Your new tool has been engineered and manufactured to WEN’s highest standards for dependability,
ease of operation, and operator safety. When properly cared for, this product will supply you years of rugged,
trouble-free performance. Pay close attention to the rules for safe operation, warnings, and cautions. If you use
your tool properly and for its intended purpose, you will enjoy years of safe, reliable service.
NEED HELP? CONTACT US!
Have product questions? Need technical support? Please feel free to contact us:
For replacement parts and the most up-to-date instruction manuals, visit WENPRODUCTS.COM
MODEL PW3400
CONTENTS
WELCOME 3
Specifications................................................................................................... 3
Introduction ..................................................................................................... 4
SAFETY 5
General Safety Rules........................................................................................ 5
Pressure Washer Safety Warnings................................................................... 7
BEFORE OPERATING 9
Know Your Pressure Washer ........................................................................... 9
Unpacking & Packing List.............................................................................. 10
Assembly & Adjustments............................................................................... 11
OPERATION & MAINTENANCE 14
Operation ....................................................................................................... 14
Maintenance................................................................................................... 17
Transportation & Storage............................................................................... 21
Troubleshooting Guide................................................................................... 23
Exploded View & Parts List............................................................................ 24
Warranty Statement ....................................................................................... 28
To purchase accessories and replacement parts for your tool, visit WENPRODUCTS.COM
2
Universal Weatherproof Pressure Washer Cover (Model PW31C)
SPECIFICATIONS
PRESSURE WASHER
Model Number PW3400
Maximum Pressure 3400 PSI
Maximum Flow 2.7 GPM - 3400 PSI
Nozzles 0°, 15°, 25°, 40°, Soap Nozzle
Gun to Lance Connection M22 Thread, 14mm Connector
Gun to Hose Connection M22 Thread, 14mm Connector
Lance 21” Stainless Steel
Lance to Nozzle Connection Quick Change
Pump Axial Cam
Detergent Tank Capacity 0.25 Gallon
Hose Inner Diameter 5/16 Inch
Hose Length 30 Feet
Wheel Diameter 10 Inches
Product Weight 60 Pounds
ENGINE
Engine Type 4 Stroke, OHV, Single Cylinder with Forced Air Cooling System
Spark Plug Gap 0.7mm - 0.8mm (0.028 in. - 0.031 in.)
Spark Plug Torque 1/2 - 3/4 Turn After Gasket Contacts Base or 15 ft.lb
Displacement 212cc
Fuel Tank Capacity 0.9 Gallon 87 Octane Minimum
Oil Capacity 20.3 fl. oz (600 ml)
Lubrication System Splash Lubrication
Noise Rating 63 dB at 22 Feet
Spark Plug LG F7TC / NGK BP7ES
3
INTRODUCTION
Thanks for purchasing the WEN 3400 PSI Pressure Washer. Refer to the illustration below for the location of the
serial number on the specifications label. Record the pressure washer information in the spaces provided below. If
assistance for information or service is required, please contact customer service by calling 1-847-429-9263, M-F
8-5 CST; you will be asked to provide the following pressure washer information when calling.
Pressure Washer Model Number: PW3400
Date of Purchase: _______________________________________________
Purchased From:________________________________________________
Serial Number: _________________________________________________
SERVICE RECORD
Record the service dates of your pressure washer in the chart below. Please perform maintenance checks and op-
erations according to the “Maintenance” section of the manual.
Service Record Date Date Date Date Date Date
Change Oil
Change Spark Plug
Clean Fuel Tank
Clean Air Cleaner
Clean Spark Arrestor
Serial Number
4
GENERAL SAFETY RULES
WORK AREA SAFETY
1. Keep work area clean and well lit. Cluttered or dark
areas invite accidents.
2. Do not operate power tools in explosive atmo-
spheres, such as in the presence of flammable liquids,
gases or dust. Power tools create sparks which may ig-
nite the dust or fumes.
3. Keep children and bystanders away while operating
a power tool. Distractions can cause you to lose control.
ELECTRICAL SAFETY
1. Power tool plugs must match the outlet. Never mod-
ify the plug in any way. Do not use any adapter plugs
with earthed (grounded) power tools. Unmodified plugs
and matching outlets will reduce risk of electric shock.
2. Avoid body contact with earthed or grounded surfac-
es such as pipes, radiators, ranges and refrigerators.
There is an increased risk of electric shock if your body
is earthed or grounded.
3. Do not expose power tools to rain or wet conditions.
Water entering a power tool will increase the risk of elec-
tric shock.
4. Do not abuse the cord. Never use the cord for car-
rying, pulling or unplugging the power tool. Keep cord
away from heat, oil, sharp edges or moving parts.
Damaged or entangled cords increase the risk of electric
shock.
5. When operating a power tool outdoors, use an ex-
tension cord suitable for outdoor use. Use of a cord
suitable for outdoor use reduces the risk of electric
shock.
6. If operating a power tool in a damp location is un-
avoidable, use a ground fault circuit interrupter (GFCI)
protected supply. Use of a GFCI reduces the risk of elec-
tric shock.
PERSONAL SAFETY
1. Stay alert, watch what you are doing and use com-
mon sense when operating a power tool. Do not use a
power tool while you are tired or under the influence
of drugs, alcohol or medication. A moment of inatten-
tion while operating power tools may result in serious
personal injury.
2. Use personal protective equipment. Always wear
eye protection. Protective equipment such as a respira-
tory mask, non-skid safety shoes and hearing protection
used for appropriate conditions will reduce the risk of
personal injury.
3. Prevent unintentional starting. Ensure the switch is
in the off-position before connecting to power source
and/or battery pack, picking up or carrying the tool.
Carrying power tools with your finger on the switch or
energizing power tools that have the switch on invites
accidents.
4. Remove any adjusting key or wrench before turning
the power tool on. A wrench or a key left attached to a
rotating part of the power tool may result in personal
injury.
5. Do not overreach. Keep proper footing and balance
at all times. This enables better control of the power
tool in unexpected situations.
6. Dress properly. Do not wear loose clothing or jew-
elry. Keep your hair and clothing away from moving
parts. Loose clothes, jewelry or long hair can be caught
in moving parts.
Safety is a combination of common sense, staying alert and knowing how your item works. The term “power tool”
in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.
SAVE THESE SAFETY INSTRUCTIONS.
WARNING! Read all safety warnings and all instructions. Failure to follow the warnings and instructions may
result in electric shock, fire and/or serious injury.
5
GENERAL SAFETY RULES
7. If devices are provided for the connection of dust
extraction and collection facilities, ensure these are
connected and properly used. Use of dust collection
can reduce dust-related hazards.
POWER TOOL USE AND CARE
1. Do not force the power tool. Use the correct power
tool for your application. The correct power tool will
do the job better and safer at the rate for which it was
designed.
2. Do not use the power tool if the switch does not turn
it on and off. Any power tool that cannot be controlled
with the switch is dangerous and must be repaired.
3. Disconnect the plug from the power source and/or
the battery pack from the power tool before making
any adjustments, changing accessories, or storing
power tools. Such preventive safety measures reduce
the risk of starting the power tool accidentally.
4. Store idle power tools out of the reach of children
and do not allow persons unfamiliar with the power
tool or these instructions to operate the power tool.
Power tools are dangerous in the hands of untrained us-
ers.
5. Maintain power tools. Check for misalignment or
binding of moving parts, breakage of parts and any
other condition that may affect the power tool’s opera-
tion. If damaged, have the power tool repaired before
use. Many accidents are caused by poorly maintained
power tools.
6. Keep cutting tools sharp and clean. Properly main-
tained cutting tools with sharp cutting edges are less
likely to bind and are easier to control.
7. Use the power tool, accessories and tool bits, etc.
in accordance with these instructions, taking into ac-
count the working conditions and the work to be per-
formed. Use of the power tool for operations different
from those intended could result in a hazardous situa-
tion.
8. Use clamps to secure your workpiece to a stable
surface. Holding a workpiece by hand or using your
body to support it may lead to loss of control.
9. KEEP GUARDS IN PLACE and in working order.
SERVICE
1. Have your power tool serviced by a qualified repair
person using only identical replacement parts. This
will ensure that the safety of the power tool is main-
tained.
CALIFORNIA PROPOSITION 65 WARNING
Some dust created by power sanding, sawing, grinding,
drilling, and other construction activities may contain
chemicals, including lead, known to the State of Califor-
nia to cause cancer, birth defects, or other reproductive
harm. Wash hands after handling. Some examples of
these chemicals are:
• Lead from lead-based paints.
• Crystalline silica from bricks, cement, and other
masonry products.
• Arsenic and chromium from chemically treated
lumber.
Your risk from these exposures varies depending on
how often you do this type of work. To reduce your ex-
posure to these chemicals, work in a well-ventilated area
with approved safety equipment such as dust masks
specially designed to filter out microscopic particles.
Safety is a combination of common sense, staying alert and knowing how your item works. The term “power tool”
in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.
SAVE THESE SAFETY INSTRUCTIONS.
WARNING! Read all safety warnings and all instructions. Failure to follow the warnings and instructions may
result in electric shock, fire and/or serious injury.
6
7
PRESSURE WASHER SAFETY WARNINGS
DANGER! CARBON MONOXIDE
Using a pressure washer indoors CAN KILL YOU IN MINUTES. Pressure washer exhaust contains carbon
monoxide (CO). This is a poison gas you cannot see or smell. If you can smell the pressure washer exhaust, you
are breathing CO. But even if you cannot smell the exhaust, you could be breathing CO.
NEVER use a pressure washer inside homes, garages, crawl spaces, or other partially 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 a pressure washer outside and far away from windows, doors, and vents.
These openings can pull in pressure washer exhaust.
Even if you use a pressure washer correctly, CO may leak into the home. ALWAYS use a battery-powered or
battery-backup CO alarm in the home. If you start to feel sick, dizzy, or weak after the pressure washer has been
running, move to fresh air RIGHT AWAY. See a doctor. You may have carbon monoxide poisoning.
WARNING! RISK OF EXPLOSION. HIGHLY FLAMMABLE: This pressure washer may emit highly flammable
and explosive gasoline vapors, which can cause severe burns or even death, if ignited. A nearby open flame can
lead to explosion even if not directly in contact with gasoline.
• Do not operate near open flame, heat, or any other ignition source. Do not smoke near the pressure washer.
• Always operate on a firm, level surface.
• Always turn the pressure washer off before refueling. Allow the pressure washer to cool for at least 2 min-
utes before removing the fuel cap. Loosen the cap slowly to relieve pressure in the tank.
• Do not overfill the fuel tank. Gasoline may expand during operation. Do not fill to the top of the tank. Allow
for expansion. Always check for spilled fuel before operating.
• If fuel spills, move the pressure washer at least 30 feet away from the spill and wipe clean any spilled fuel
before starting the engine.
• Empty the fuel tank before storing or transporting the pressure washer.
CALIFORNIA PROPOSITION 65 WARNING: This product contains chemicals and produces exhaust known
to the State of California to cause cancer, birth defects and other reproductive harm. For more information, visit
www.P65Warnings.ca.gov
7
OPERATING ENVIRONMENT
1. Using the pressure washer indoors can kill you in
minutes. Only use the pressure washer outside and far
away from windows, doors and vents.
2. Do not smoke near the pressure washer.
3. Do not operate near open flame, heat, or flammable
materials. This pressure washer may emit highly flam-
mable and explosive gasoline vapors, which can cause
severe burns or even death if ignited. A nearby open
flame can lead to an explosion even if it isn’t directly in
contact with gasoline.
4. Always operate the pressure washer on a firm, level
surface.
5. The pressure washer should have at least 5 feet of
clearance from buildings or other equipment during
operation.
6. Do not allow children or non-qualified persons to
operate the pressure washer.
PRESSURE WASHER OPERATION
1. Do not touch hot surfaces. Pay attention to warning
labels on the pressure washer identifying hot parts on
the machine.
2. Allow the pressure washer to cool down after use
before touching the engine or areas of the pressure
washer that become hot during operation.
3. Turn the engine switch to the “OFF” position when
the engine is not running.
4. The high pressure stream of water can cut through
skin and cause serious injury. Do not aim the stream of
water at yourself or at any one else, including animals.
5. Hoses and tubes can become damaged from coming
in contact with a hot engine or muffler. Always double
check the hose for perforations before starting up the
machine and keep it clear of the engine and the muffler.
6. Kickback from operation can cause the user to fall
down. Always operate the pressure washer on a level
and non-elevated surface to prevent the risk of falling.
7. Always wear safety goggles to protect from possi-
ble mishaps with the stream or detergents. Always be
aware of the dangers associated with the detergents and
chemicals that you are working with. Attach all hoses
before starting the engine.
8. Pressure washers vibrate in normal use. During and
after the use of the pressure washer, inspect both the
pressure washer as well as extension and power supply
cords for damage resulting from vibration. Have dam-
aged items repaired or replaced as necessary. Do not
use plugs or cords that show signs of damage such as
broken or cracked insulation or damaged blades.
SAVE THESE INSTRUCTIONS – This manual contains
important instructions for the WEN® Pressure Washer
that should be followed during installation and mainte-
nance of the pressure washer.
WARNING! Do not let comfort or familiarity with the product replace strict adherence to product safety rules.
Failure to follow the safety instructions may result in serious personal injury.
PRESSURE WASHER SAFETY WARNINGS
8
KNOW YOUR PRESSURE WASHER
TOOL PURPOSE
Easily remove dirt and grime from your deck, siding, and driveway with your WEN Pressure Washer. Refer to the
following diagrams to become familiarized with all the parts and controls of your pressure washer. The components
will be referred to later in the manual for assembly and operation instructions.
30-Foot High Pressure Hose
Handle
Oil Fill & Dipstick
Fuel Tank & Cap
Choke Lever
Recoil Starter
Soap Tank Fill Cap Wheels
Spray Gun
Fuel Valve Lever
Locking Trigger
Engine Switch
Water Inlet
High Pressure Hose Outlet
9
• Pressure Washer
• Quick Start Guide
• Spray Gun
• Extension Lance with Quick-Connect Fitting
• High Pressure Hose
• Spray Gun Hook (upper)
• Spray Gun Hook (lower)
• Spray Nozzles (5) - 0°, 15°, 25°, 40° and Soap Nozzle
• Foot
• Nozzle Cleaner
• Hex Wrench, 4mm
• Spark Plug Wrench & Handle
• Double Open-End Wrench, 10mm / 13mm
UNPACKING & PACKING LIST
UNPACKING
With the help of a friend or trustworthy foe, such as one of your in-laws, carefully remove the pressure washer
from the packaging and place it on a sturdy, flat surface. Make sure to take out all contents and accessories. Do not
discard the packaging until everything is removed. Check the packing list below to make sure you have all of the
parts and accessories. If any part is missing or broken, please contact customer service at 1-847-429-9263 (M-F
Upper Gun Hook &
*M6 Screw & Lock Nut (2)
+
Lower Gun Hook &
M6 Screw & Lock Nut
+
5 Nozzles &
Nozzle Cleaning Tool
Spray Gun & Lance
*Hardware pre-installed on the unit.
WARNING! Do not attempt to assemble or operate this pressure washer until you have read and understood
this entire manual. If you have any problems assembling or operating this unit, please call 1-847-429-9263 M-F
8-5 CST for customer service.
WARNING! Do not operate this pressure washer if any of the parts are damaged or missing until the part
is replaced. Using this product with damaged or missing parts can cause damage to the machine or result in
serious injury or death.
High Pressure Hose
10
Foot & M8 Lock Nut
+
ATTACHING FOOT ASSEMBLY (FIG. 1)
1. Raise or tilt pressure washer so you can line up foot with the hole
located at the center of the frame.
2. Align the rubber foot (Fig. 1 - 1) with the hole in the frame. Attach
foot by inserting the bolt from the bottom up, then attach the locking
nut (Fig. 1 - 2). Tighten the nut with a wrech until there is a slight
crush on the frame tube. Do not over tighten.
INSTALL HANDLE (FIG. 2)
Install the upper frame (Fig. 2 - 1) onto the lower frame (Fig. 2 - 2)
by sliding the handle over the two upright tubes on the lower frame
and pressing down firmly until the handle is seated and the two
detent pins snap in place.
ATTACHING UPPER AND LOWER GUN HOOKS (FIG. 3)
1. Attach the upper gun hook (Fig. 3 - 1). Align the upper gun hook
with the holes. Attach using the included nuts and bolts.
2. Attach the lower gun hook (Fig. 3 - 2). Make sure that the gun
hook is straight and correctly aligned before tightening. Wrench
tighten until the nut is snug. Do not over tighten.
ATTACHING THE SPRAY GUN (FIG. 4 & 5)
1. Screw the spray wand (Fig. 4 - 1) and the trigger handle (Fig. 4 -
2) together until they are secure.
2. Insert the inlet coupler of the spray hose (Fig. 5 - 1) into the
threaded fitting on the high pressure spray gun (Fig. 5 - 2) and
thread the black nut on by turning clockwise until it is hand tight.
Fig. 1
1
Fig. 2
1
2
Fig. 3
1
2
Fig. 4 Fig. 5
2
1
2
1
ASSEMBLY & ADJUSTMENTS
11
2
10W30 OIL
ADD ENGINE OIL
The pressure washer is shipped without oil. User
must add the proper amount of oil before operat-
ing the pressure washer for the first time. The
oil capacity of the engine crankcase is 20.3 fl. oz.
(600 mL). For general use (above 40° F), we rec-
ommend 30W, 4-stroke engine oil.
ENGINE OIL RECOMMENDATIONS
Select good quality detergent oil bearing the American Petroleum Institute (API) service classifications SJ, SL, or
SM. (Synthetic oils may be used.) Use the SAE viscosity grade of oil from the above chart that matches the starting
temperature anticipated before the next oil change.
To add oil, follow these steps: (Fig. 6A & 6B)
1. Make sure the pressure washer is on a level surface. Tilting the
pressure washer to assist in filling will cause oil to flow into the
wrong areas of the engine and will cause damage. Keep pressure
washer level.
2. Remove the dipstick (Fig. 6A - 1) from the engine.
3. Add oil slowly to bring level to full. Make sure oil comes approxi-
mately halfway up the crankcase threads to ensure enough oil has
been added.
4. To check the oil level: Wipe the dipstick with a clean rag. Insert
the dipstick into the oil fill opening without screwing it in. Remove
the dipstick to check the oil mark. (Fig. 6B)
5. Slowly add more oil and repeat step 4 until the oil mark reaches
to the top of the dipstick. Do not over fill the crankcase.
6. Check for oil leaks. Tighten dipstick firmly.
-20 0 20 40 60 80 100
-20 -10-30 0 10 20 30 40
TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE
°F
°C
5W-30, 10W-30
SYNTHETIC 5W-20, 10W-30
30
**
*
ASSEMBLY & ADJUSTMENTS
Fig. 6A
1
Fig. 6B
Min Oil Level
Max Oil Level
12
Use fresh (within 30 days from purchase), lead-free gasoline with a
minimum of 87 octane rating. Do not mix oil with gasoline.
To add gasoline, follow these steps: (Fig. 7)
1. Make sure the pressure washer is on a level surface.
2. Unscrew fuel cap (Fig. 7 - 1) and set aside.
NOTE: The fuel cap may be tight and hard to unscrew.
3. Slowly add unleaded gasoline to the fuel tank (Fig. 7 - 2). Be care-
ful not to overfill. The capacity of the fuel tank is 0.9 gallons.
NOTE: Do not fill the fuel tank to the very top. Gasoline will expand
and spill over during use even with the fuel cap in place.
4. Reinstall fuel cap and wipe clean any spilled gasoline with a dry
cloth.
Unleaded
Gassoline
IMPORTANT:
• Never use an oil/gasoline mixture.
• Only use unleaded gasoline.
• Never use old gasoline.
• Avoid getting dirt or water into the fuel tank.
• Gasoline can age in the tank and make starting difficult. Never store pressure washer for extended periods of time
with fuel in the tank.
HIGH ALTITUDE OPERATION ABOVE 2000 FEET
The fuel system on this pressure washer may be affected by operation at high altitudes. Proper operation can be
ensured by installing an altitude kit at altitudes higher than 2000 feet above sea level. At elevations above 7000 feet,
the engine may experience a decrease in performance, even with the proper altitude kit. Operating this pressure
washer without said kit may increase the engine’s emissions and decrease both fuel economy and performance.
You can order the kit at wenproducts.com by searching part no. PW3400-HA27. This kit should be installed by a
qualified mechanic. Refer to the instructions included with your altitude kit for more information about installation.
ADDING GASOLINE
ASSEMBLY & ADJUSTMENTS
WARNING! This pressure washer may emit highly flammable and explosive gasoline vapors, which can
cause severe burns or even death if ignited. A nearby open flame can lead to explosion even if not directly in
contact with gasoline.
WARNING! To prevent serious injury from fire, follow the kit installation procedures in a well-ventilated area
away from ignition sources. If the engine is hot from use, shut the engine off and let it cool before proceeding.
Do not smoke near the pressure washer. Warranty will be void if adjustments are not made for high altitude use.
CAUTION! Operating engines at lower altitudes with the high-altitude kit installed could cause severe engine
damage and affect emissions compliance. Be sure to uninstall the high altitude kit when operating at altitudes
below 2000 feet.
Fig. 7
1
2
13
CONNECTING GARDEN HOSE TO PRESSURE WASHER
(FIG. 8)
1. Run water through the hose for a few seconds to flush any debris
from the hose.
2. Inspect water inlet screen and remove any debris.
3. Connect hose (Fig. 8 - 1) to water inlet (Fig. 8 - 2) and tighten
by hand. There must be a minimum of 10 feet of unrestricted hose
between pressure washer and faucet or shut off valve.
4. Turn on water.
5. Purge the system’s pump of air by releasing the safety and squeez-
ing the trigger of the spray gun.
CONNECT HIGH PRESSURE HOSE TO PUMP (FIG. 9)
1. Attach the end of high pressure hose (Fig. 9 - 1) to the high pres-
sure outlet (Fig. 9 - 2) on pump.
2. Follow the same procedure with opposite end to attach high pres-
sure hose to spray wand.
ASSEMBLY & ADJUSTMENTS
WARNING! The intake water temperature must not exceed 104°F (40°C). The water supply must not exceed
101 PSI (700 kPa).
Pressure washer exhaust contains carbon monoxide (CO). This is a poison gas you cannot see or smell. If you can
smell the pressure washer exhaust, you are breathing CO. Even if you cannot smell the exhaust, you may be breath-
ing CO.
NEVER use a pressure washer 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 a pressure washer outside and far away from windows, doors, and vents. These openings can pull in
pressure washer exhaust. Even if you use a pressure washer correctly, CO may leak into the home. ALWAYS use a
battery-powered or battery-backup CO alarm in the home.
If you start to feel sick, dizzy, or weak after the pressure washer has been running, move to fresh air RIGHT AWAY.
See a doctor. You may have carbon monoxide poisoning.
OPERATION
DANGER! CARBON MONOXIDE. Using a pressure washer indoors CAN KILL YOU IN MINUTES.
Fig. 8
1
2
Fig. 9
12
14
OFF
ON
STARTING PRESSURE WASHER (FIG. 10 & 11)
1. Place pressure washer on a level surface. Turn on water.
2. Purge the system’s pump of air by releasing the safety and squeez-
ing the trigger of the spray gun. Attach lance to spray gun.
3. Turn fuel valve (Fig. 10 - 2) to the ON position.
4. Slide the choke lever (Fig. 10 - 3) to the “Choke” position.
5. Turn the engine ON/OFF switch (Fig. 10 - 1) to the “ON” position.
6. Holding the machine with your hand, pull the recoil handle (Fig.
11 - 1) slowly until resistance is felt, then pull rapidly. Squeeze the
gun trigger and release the pressure after every failed attempt to
start the pressure washer in order to reduce back pressure.
7. Let the engine run for several seconds. Then gradually slide the
choke lever (Fig. 11 - 2) to the RUN position as the engine warms up
until the choke is fully slid to the RUN position.
OPERATION
WARNING! Pulling the pull cord of the recoil starter rapidly can pull your arm towards the engine faster than
you can let go, which could result in injury.
Always relieve pressure from spray gun before pulling starter cord, including every failed attempt to start engine.
To avoid recoil, pull starter cord slowly until resistance is felt, then pull rapidly.
Fig. 10
Fig. 11
1
2
3
1
2
15
ENGINE BREAK-IN PROCEDURE
The procedure below should be followed when you receive your pressure washer in order to prolong the engine’s
service life. This procedure helps to seat the piston rings properly in the cylinder, and will reduce overall wear on
the engine.
For the first 5 hours of operation, do not hold down the trigger for more than 1 minute at a time. After holding down
the trigger for 1 minute, release the trigger and let the pressure washer run for at least 30 seconds. Then you may
pull the trigger again. After the first 5 hours of operation, you may hold down the trigger for as long as needed.
After the first 8 hours of operation, change the oil, then change it again after the first 25 hours. Refer to the Recom-
mended Maintenance Schedule on page 17 for the full maintenance schedule.
OFF
ON
STOPPING PRESSURE WASHER (FIG. 12)
1. Turn the fuel valve to the OFF position. Let the engine run
until the fuel is used up.
2. Turn the ON/OFF switch (Fig. 12 - 1) to the OFF position.
NOTE: If for some reason you need to stop the pressure washer
quickly, simply flip the ON/OFF switch to OFF. However, doing
this will allow fuel to remain in the carburetor, and will lead to
problems if the carburetor is not drained after use.
3. Turn off water and squeeze the trigger handle to release all
water pressure.
PRESSURE RELIEF VALVE
If pressure or temperature within the pump exceeds preset
values, excess water will begin to spray out of the pressure
relief valve located next to the water inlet. This is perfectly nor-
mal and acts as a corrective measure to ensure that the right
amount of pressure is being used.
However, if water seems to always be leaking, its time for your
pressure relief valve to be replaced. Please call our customer
service phone line to order parts and learn about the replace-
ment process.
USING THE SPRAY GUN (FIG. 13)
Flip the lock tab (Fig. 13 - 1) behind the trigger up or down until
it clicks to apply or remove the safety. Pull back on the trigger
(Fig. 13 - 2) to begin operating pressure washer. To stop water
flow, release trigger.
APPLYING DETERGENT
1. Only use the black soap nozzle for detergent.
2. Rinse surfaces with cool water before applying cleaner.
3. Prepare detergent as required. For best results follow de-
tergent directions as supplied by detergent manufacturer. Re-
move cap from the detergent container and fill.
4. Spray detergent on surface. For best results use long, even,
and overlapping strokes. Allow detergent to set for about 3
minutes before rinsing, but do not allow the detergent to dry
on the surface or it may cause streaking or damage. Use good
judgment.
5. To clean equipment after use, flush water through the spray
nozzle for 1-2 min. then shut off the engine. Soak nozzle in a
bucket of clean water to remove detergent. To empty out soap
from the pressure washer, disconnect the hose found under-
neath the pressure washer and let remaining soap drain out.
OPERATION
WARNING! Only use detergents or soaps that are specifically designed to be used with pressure washers.
Chemicals which are caustic, such as acids or bleach, can result in serious injury, property damage, or death.
NEVER aim the flow of water at a person or an animal, especially when using detergent or cleaner.
Fig. 13
Fig. 14
1 2
12
16
Fig. 12
1
USING THE SPRAY NOZZLE (FIG. 14)
1. To connect or disconnect the spray tip (Fig. 14
- 1), pull back on the quick-connect collar (Fig.
14 - 2). Insert or remove spray tip then release
the collar.
2. When spray tip is connected, pull on the spray
tip to make sure it is secured.
3. For general cleaning use the 40° spray tip.
This option is for cement walkways.
4. For stripping, spot cleaning, blasting, and hard
to reach areas use the 15° spray tip. This op-
tion is for removing paint, rust, mildew, marine
growth on boats, or grease stains. This option
can be used for reaching second story surfac-
es, or for the removal of paint, rust, oil stains,
tar, gum, and other stubborn substances. Use
extreme caution when using this nozzle.
5. For applying pressure washer detergent, use
the black soap nozzle.
WARNING! Never perform maintenance operations while the pressure washer is running. Before maintain-
ing or servicing, turn OFF the pressure washer, disconnect all devices, and allow the machine to cool down.
RECOMMENDED MAINTENANCE SCHEDULE
Proper routine maintenance of the pressure washer will help prolong the life of the machine. Please perform main-
tenance checks and operations according to the maintenance schedule below. If there are any questions about the
maintenance procedures listed in this manual, please contact customer service at 1-847-429-9263 (M-F 8-5 CST),
Recommended
Maintenance Schedule
Every 8
Hours or
Daily
Every 25
Hours
Every 3
Months or
50 Hours
Every 6
Months or
100 Hours
Before
Storage
As
Necessary
Engine Oil Check Level X
Replace X** X** X* X
Air Filter Check X*
Clean X*
Spark Plug
Check/Clean/
Regap X
Change X X
Fuel Check Level X
Drain X X
Carburetor Drain X X
Spark
Arrestor Check/Clean X
* Clean/change more often under dusty conditions or operating under heavy load.
** Change the oil after the first 8 hours of operation, after the first 25 hours of operation, and every 50 hours after
that.
PRE-OPERATION STEPS
Before starting the engine, perform the following pre-operation steps:
1. Check the level of the engine oil and the fuel tank.
2. Make sure the air filter is clean.
3. Remove any debris that has collected on the pressure washer.
4. Check high pressure hose for damage.
5. Briefly run garden hose to flush out any debris or insects.
6. Inspect the work area for hazards.
7. Clean any debris that has collected around or behind the muffler, air cleaner and controls.
8. Use a damp cloth to wipe exterior surfaces. If dirt is caked on, use a soft bristle brush.
MAINTENANCE
17
AFTER EACH USE
Follow these procedures after each use:
1. Shut off engine and turn off water supply. Release water pressure
by pointing spray gun in a safe direction and squeezing the trigger.
2. Disconnect high pressure hose, spray gun, and nozzle. Drain wa-
ter from items and use a rag to wipe down the outside of the hose
and spray gun.
3. Empty the water from the pump by pulling the recoil starter 6
times.
MAINTENANCE
Fig. 15
Min Oil Level
Max Oil Level
4. Drain the carburetor (see below).
5. Store unit in a clean and dry area after it has had a chance to cool down.
6. Use of a pressure washer pump conditioner is recommended, particularly for winter storage. Follow the instruc-
tions provided by the manufacturer of the pump conditioner.
CHECKING THE OIL
Check the oil level of the pressure washer according to the Recommended Maintenance Schedule. The pressure
washer should be checked before each use for proper oil level. This is a critical step for proper engine starting.
To check the oil level:
1. Make sure the pressure washer is on a level surface.
2. Clean around oil fill. Remove dipstick and wipe the dipstick with a clean rag. Insert the dipstick into the oil fill
opening without screwing in. Remove the dipstick to check the oil mark. Add oil if the oil mark covers less than one
half of the dipstick. (Fig. 15)
3. Slowly add more oil and repeat step 2 until the oil mark reaches to the top of dipstick. Do not over fill the crank-
case.
4. Reinstall oil dipstick.
CLEANING THE SPARK ARRESTOR
Clean the spark arrestor with a wire brush every 50 hours or 3 months of use. The spark arrestor is the small screen
located on the muffler exhaust.
CAUTION! The muffler is very hot after use. Allow the muffler to cool down completely before cleaning the spark
arrestor.
18
DRAINING THE CARBURETOR
Drain the carburetor after each use to fight fuel deterioration. If you
do not drain the carburetor, gasoline will degrade inside the carbu-
retor and clog it, which will make it difficult or impossible to start
next time you use it.
1. Turn the fuel valve OFF.
2. Prepare an approved gasoline-storage container. Position it un-
derneath the carburetor drain screw (Fig. 16 - 1).
3. Use a screwdriver to loosen and remove the carburetor drain
screw. Allow fuel to flow into the container.
4. Once the carburetor has drained, replace the screw.
Fig. 16
1
CHANGING/ADDING OIL (FIG. 17)
Change the oil according to the Recommended Maintenance Sched-
ule on page 17. Change the oil when the engine is warm to allow for
complete drainage. Change oil more often if operating under heavy
load or high ambient temperatures. It is also necessary to drain the
oil from the crankcase if it has become contaminated with water
or dirt. The oil capacity of the pressure washer engine is 20.3 fl oz
(600mL). Add oil when the oil level is low. For proper type of oil
refer to the “add oil” portion of the “Preparation” section.
To change oil, follow the steps below:
1. Shut off engine. Clean the area around the oil fill cap/dipstick to keep out debris then remove oil dipstick.
2. Place an oil pan on the ground to catch oil. Remove oil plug then tilt pressure washer back and to the side to
empty out the oil from the crankcase.
3. Once oil is completely drained, return the pressure washer to a level position and install the oil drain plug. Refill
the engine with new oil as instructed earlier in this manual under Adding/Checking Oil.
AIR FILTER MAINTENANCE
Routine maintenance of the air filter helps maintain proper airflow to the carburetor. Occasionally check that the air
filter is free of excessive dirt. Refer to Recommended Maintenance Schedule.
1. Unscrew the cover bolt, then remove the air filter cover.
2. Remove the air filter element from the casing.
3. Check and clean the air filter element. Replace with a new one if the element is damaged. A good element can be
washed in soapy water and dried. Saturate the element with clean engine oil and squeeze off excess oil.
4. Re-install the element. Wipe off excess oil from the air filter housing. A small amount of oil in the element is
normal and necessary for the engine to work properly.
5. Reinstall the air filter element and cover.
CAUTION! Running the engine with a dirty, damaged, or missing air filter element will cause the engine to wear out
prematurely.
MAINTENANCE
Fig. 17
Oil Drain
Plug
19
DRAINING THE FUEL TANK
Clean fuel tank each year or before storing the pressure washer for extended periods of time. To drain the fuel tank
and carburetor:
1. Prepare an approved gasoline-storage container. Turn the fuel valve to the “OFF” position. Position the container
so it will catch fuel draining from the carburetor drain screw.
2. Loosen the drain screw until fuel begins to flow out of the carburetor, then turn the fuel valve to the “ON” position.
The gas tank will drain through the carburetor.
CAUTION! Store the emptied gasoline in a safe place. Do not store fuel for more than 3 months.
DRAINING THE SOAP (FIG. 18)
To drain the soap, unplug the hose (Fig. 18 - 1). Use a container to
hold the draining soap. Once the soap is done draining, reconnect
the hose.
SPARK PLUG MAINTENANCE
The spark plug is important for proper engine operation. A good
spark plug should be intact, free of deposits, and properly gapped.
Refer to Recommended Maintenance Schedule.
To inspect the spark plug (Fig. 19 & 20):
1. Remove spark plug boot (Fig. 19 - 1). Be careful not to tear insu-
lation or wiring.
2. Unscrew the spark plug from the engine using a spark plug
wrench. There is limited space for the wrench to turn. Use both
rows of holes in the spark plug wrench to gain leverage to loosen
the plug.
3. Visually inspect the spark plug for cracks or excessive electrode
wear. Replace as necessary.
4. Measure the plug gap with a wire gauge. The gap should be 0.7-
0.8 mm (0.028-0.031 in). (Fig. 20)
5. If re-using the spark plug, use a wire brush to clean any dirt from
around the spark plug base then re-gap the spark plug.
6. Screw the spark plug back into the spark plug hole using the
spark plug wrench. Do not over-tighten spark plug. Recommended
tightening of spark plug is ½ to ¾ of a turn after the spark plug
gasket contacts the spark plug hole, or 15 ft-lb. Reinstall the spark
plug boot.
0.7 - 0.8mm
MAINTENANCE
Fig. 18
Fig. 19
Fig. 20
1
1
20
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