2000PSI
The Reliable Ones
High Pressure Washer
Owner’s Manual
Problems?
Questions?
Before taking your unit
back to the store,
call the pressure washer
helpline at
1-800-270-1408
M-F 8-5 CST
This pressure
washer is
equipped with an
Automatic Cool
Down System.
See page 11 for
details
GENERAC
This symbol points out important safety instructions, which, if not followed, could endanger the personal safety and/or property of yourself and others. Read and follow all
instructions in the manual before attempting to operate this unit.
Model No. 10400 (2000 PSI High Pressure Washer) Manual No. B2062 Revision 1 (3/8/98)
2
High Pressure Washer
Generac 2000PSI High Pressure Washer
GENERAC
CAUTION: Always disconnect spark plug wire and place wire where it cannot contact spark
plug to prevent accidental starting when setting up, transporting, adjusting or making repairs
to your high pressure washer.
Engine exhaust gases contain DEADLY carbon
monoxide gas. This dangerous gas, if breathed in
sufficient concentrations, can cause unconsciousness or even death. Operate this equipment only in
the open air where adequate ventilation is available.
Gasoline is highly FLAMMABLE and its vapors are
EXPLOSIVE. Do not permit smoking, open flames,
sparks or heat in the vicinity while handling gasoline.
Avoid spilling gasoline on a hot engine. Allow unit to
cool for 2 minutes before refueling. Comply with all
laws regulating storage and handling of gasoline.
Locate this pressure washer in areas away from com-
bustible materials, combustible fumes or dust.
The high pressure equipment is designed to be used with Gen-
erac authorized parts only. If you use this equipment with parts
that do not comply with minimum specifications, the user
assumes all risks and liabilities.
Some chemicals or detergents may be harmful if
inhaled or ingested, causing severe nausea, fainting
or poisoning. The harmful elements may cause property damage or severe injury.
Do not allow CHILDREN to operate the Pressure
Washer at any time.
Operate engine only at governed speed. Running the
engine at excessive speeds increases the hazard of
personal injury. Do not tamper with parts which may
increase or decrease the governed speed.
Do not wear loose clothing, jewelry or anything that
may be caught in the starter or other rotating parts.
Before starting the Pressure Washer in cold weather,
check all parts of the equipment and be sure ice has
not formed there.
Units with broken or missing parts, or without protec-
tive housing or covers should NEVER be operated.
The muffler and air cleaner must be installed and in good con-
dition before operating the Pressure Washer. These
components act as spark arrestors if the engine backfires.
Check the fuel system for leaks or signs of deterio-
ration such as chafed or spongy hose, loose or missing
clamps or damaged tank or cap. Correct all defects
before operating the Pressure Washer.
Do not spray flammable liquids.
Never aim the gun at people, animals or plants.
High pressure spray can cause paint chips or other
particles to become airborne and fly at high speeds.
Never allow any part of the body to come in contact with the
fluid stream. DO NOT come in contact with a fluid stream created by a leak in the high pressure hose.
The high pressure stream of water that this equipment
produces can pierce skin and its underlying tissues,
leading to serious injury and possible amputation.
Always wear eye protection when you use this equip-
ment or when you are in the vicinity where the
equipment is in use.
Never move the machine by pulling on the high pressure hose.
Use the handle provided on the top of the unit.
Always be certain the spray gun, nozzles and acces-
sories are correctly attached.
Never use a spray gun which does not have a trigger
lock or trigger guard in place and in working order.
Use a respirator or mask whenever there is a chance
that vapors may be inhaled. Read all instructions with
mask so you are certain the mask will provide the necessary protection against inhaling harmful vapors.
High pressure spray may damage fragile items includ-
ing glass. Do not point spray gun at glass when in the
jet spray mode.
Keep the hose connected to machine or the spray gun
while the system is pressurized. Disconnecting the
hose while the unit is pressurized is dangerous.
Hold the spray gun firmly in your hand before you start
the unit. Failure to do so could result in an injury from
a whipping spray gun. Do not leave the spray gun unattended while the machine is running.
The cleaning area should have adequate slopes and drainage
to reduce the possibility of a fall due to slippery surfaces.
Keep water spray away from electric wiring or fatal
electric shock may result.
Do not secure trigger gun in the pull-back (open) position.
Do not by-pass any safety device on this machine.
The muffler and engine heat up during operation and
remain hot immediately after shutting it down. Avoid
contact with a hot muffler or engine or you could be
severely burned.
Operate and store this unit on a stable surface.
High pressure hose can develop leaks from wear, kinking,
abuse, etc. Water spraying from a leak is capable of inject-
ing material into skin. Inspect hose each time before using it.
Check all hoses for cuts, leaks, abrasions or bulging of cover,
or damage or movement of couplings. If any of these condi-
tions exist, replace hose immediately. Never repair high
pressure hose. Replace it with another hose that meets min-
imum pressure rating of your pressure washer.
The engine exhaust from this product
contains chemicals known to the State
of California to cause cancer, birth
defects, or other reproductive harm.
WWAARRNNIINNGG::
Generac 2000PSI High Pressure Washer
GENERAC
CONGRATULATIONS on your purchase of a
GENERAC high pressure washer. It has been
designed, engineered and manufactured to give you
the best possible dependability and performance.
Should you experience any problem you cannot
easily remedy, please contact your nearest GENERAC Authorized Service facility, or call the 1-800
number listed on the front of this manual. We have
competent, well-trained technicians and the proper
tools to service or repair this unit.
Please read and retain this manual. The instructions
will enable you to assemble and maintain your high
pressure washer properly.
CUSTOMER
RESPONSIBILITIES
Read and observe the safety rules.
Follow regular schedule in maintaining, caring for
and using your high pressure washer.
Follow the instructions under Customer Responsi-
bilities and Storage sections of this Owner's
Manual.
PRODUCT SPECIFICATIONS
Pressure Washer Specifications
Outlet Pressure . . . . 2000 psi
Flow Rate . . . . . . . . . 2.0 gallons per minute (gpm)
Detergent Mix . . . . . . Use undiluted detergent
approved for pressure
washers
Water Supply . . . . . . Not to Exceed 140°F
Temperature
Automatic Cool . . . . Will cycle when water
Down System reaches 140°-145°F
Engine Specifications
Engine Model . . . . . . Briggs & Stratton Quantum
Rated Horsepower . . 6.0
Displacement . . . . . . 190cc
Spark Plug
Type . . . . . . . . RJ19LM
Set Gap To: . . 0.030 inch (0.76mm)
Gasoline Capacity . . 1.6 U.S. quarts
Oil . . . . . . . . . . . . . . . SAE 30
In the State of California a spark arrestor is required
by law (Section 4442 of the California Public
Resources Code). Other states may have similar
laws. Federal laws apply on federal lands.
NOTE: If you equip the engine of your pressure
washer with a spark arrestor muffler, the spark
arrestor must be maintained in effective working order
by the owner/operator.
You can order a spark arrestor through your
authorized Generac service facility. See Engine Owners Manual for part number.
3
High Pressure Washer
Model Number 1040-0
Serial Number
Date of Purchase
The model and serial numbers will be found on a
decal attached to the pressure washer. You could
record both serial number and date of purchase
and keep in a safe place for future reference.
4
High Pressure Washer
KNOW YOUR PRESSURE WASHER
Read this owners manual and safety rules before operating your high pressure washer.
Compare the illustrations with your high pressure washer to familiarize yourself with the locations of various
controls and adjustments. Save this manual for future reference.
Generac 2000PSI High Pressure Washer
GENERAC
Pump Develops high pressure.
Recoil Starter Used for starting the engine man-
ually.
Spray Gun Controls the application of water onto
cleaning surface with trigger device. Includes safety
latch.
Adjustable Nozzle Extension You must attach
this to the spray gun to provide high pressure
stream. The adjustable nozzle allows you to adjust
the spray pattern which, in turn, adjusts the force of
spray.
Air Cleaner Dry type filter element limits the
amount of dirt and dust that gets in the engine.
High Pressure Outlet Connection for high pressure hose.
Water Inlet Connection for garden hose.
High Pressure Hose Connect one end to water
pump and the other end to spray wand.
Goggles Always use the enclosed goggles or
other eye protection when running your pressure
washer.
Automatic Cool Down System Cycles water
through pump when water reaches 140°-145°F.
Warm water will discharge from pump onto
ground. This system prevents internal pump
damage.
Spray Gun
Adjustable Nozzle
High Pressure Hose
Goggles
Air Cleaner
Gas Tank
Water Inlet
Pump equipped with
Automatic Cool Down System
Recoil Starter
High Pressure Outlet
Oil Fill Tube
High Pressure Washer
5
Read entire owners manual before you attempt to
assemble or operate your new pressure washer.
Your new pressure washer has been assembled at
the factory with the exception of those parts left
unassembled for shipping purposes.
REMOVE PRESSURE
WASHER FROM CARTON
Remove parts box included with pressure washer.
Slice two corners at guide handle end of carton
from top to bottom so the panel can be folded down
flat, then remove all packing material.
Roll pressure washer out of carton.
CARTON CONTENTS
Items in the carton include:
Main Unit
Parts Box (which includes the following):
Wireform
Goggles
Nozzle Cleaning Kit
Owners Manual
Engine Manual
Spray Gun
Nozzle Extension
High Pressure Hose
Handle
Parts Bag (which includes the following):
1 carriage bolt
1 carriage hook
2 knobs
If any of the above parts are missing or damaged, call
the pressure washer helpline at 18002701408.
PREPARING THE PRESSURE
WASHER FOR USE
If you have any problems with the assembly of your
pressure washer or if parts are missing or damaged,
call the Pressure Washer Helpline at 1-800-270-1408.
To prepare your pressure washer for operation you
will need to perform these tasks:
Attach the handle and attach the wire form that
holds high pressure hose and spray gun.
Connect high pressure hose to the spray gun and
the pump and connect water supply to the pump.
Add oil to engine crankcase.
Add fuel to fuel tank.
Attach the Handle
Place the top of the handle onto the bottom of the
handle already connected to the main unit making
sure the holes in the top align with the holes on the
bottom. (Figure 1)
Generac 2000PSI High Pressure Washer
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GENERAC
Figure 1 Attach the top of the handle to the
bottom of the handle.
Make sure the
holes on the
top of the
handle are
aligned with the
holes in the
bottom of the
handle
Generac 2000PSI High Pressure Washer
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GENERAC
6
High Pressure Washer
Insert the carriage bolt through the right hole (look-
ing at the front of the pressure washer) and attach a
plastic knob. Tighten the knob by hand (Figure 2).
Insert the carriage hook through the left hole (look-
ing at the front of the pressure washer). Pull the
recoil handle out slowly. Place the recoil string
through the hook and attach the plastic knob.
Tighten the knob by hand (Figure 2).
Insert the wire support with the longer arm positioned
on the left. From this view (from rear of unit) the hook
should resemble a J.
(Figure 3)
Add Engine Oil
IMPORTANT: Any attempt to crank or start the
engine before it has been properly serviced with the
recommended oil may result in an engine failure.
Note: When adding oil to the engine crankcase, use
only high quality detergent oil rated with API service
classification SF,SG, SH or SH/CD rated SAE 30
weight. Select the oils viscosity grade according to
your expected operating temperature. Do Not Use
SAE 10W40 Oil.
Although multi-viscosity oils (5W30, 10W30, etc.)
improve starting in cold weather, these multi-viscosity
oils will result in increased oil consumption when used
above 32°F. Check your engine oil level more
frequently to avoid possible damage from running
low on oil.
Place pressure washer on a level surface.
Clean area around oil fill and remove oil dipstick
(Figure 4)
Wipe dipstick clean. Pour oil into oil fill opening until
oil reaches FULL mark on the dipstick. Stop occasionally to check oil level. DO NOT OVERFILL.
Install oil dipstick, hand tighten securely.
Note: Check Oil Often During Engine Breakin.
Add Gasoline
DANGER! Never fill fuel tank indoors.
Never fill fuel tank when engine is running or hot. Do not smoke when filling
fuel tank.
WARNING! Never fill fuel tank completely
full. Fill tank to about 1/2" below the
bottom of the filler neck to provide space
for fuel expansion. Wipe away any fuel
spillage from engine and equipment
before starting.
Figure 3 Fit wire form on handle.
Figure 4 Add oil to engine crankcase. Do not
attempt to start engine without
adding oil.
Oil Fill Cap
Figure 2 Insert the carriage bolt and hook
and attach the knobs.
colder 32°F warmer
5W30 SAE 30
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High Pressure Washer
The manufacturer recommends fresh, clean unleaded
automotive gasoline.
Use clean fuel and store in approved, clean, cov-
ered containers. Use clean fill funnels. Never use
stale gasoline left over from last season or gasoline stored for long periods.
Clean area around fuel fill cap, remove cap.
(Figure 5).
Add UNLEADED regular gasoline, slowly, to fuel
tank. Use a funnel to prevent spillage.
Install fuel cap and wipe up any spilled gasoline.
Connect Hose and Water
Supply to Pump
IMPORTANT: You must assemble wand and attach
all hoses before you start engine. Starting engine
without all hoses connected and water supplied will
damage pump.
Uncoil high pressure hose and attach one end of
hose to the base of the spray gun (Figure 6).
Tighten by hand.
Attach other end of high pressure hose to the high
pressure outlet on the pump (Figure 7). Tighten by
hand.
Before you connect your garden hose to the water
inlet, inspect the Inlet Screen (see Figure 8). Clean
the screen if it contains debris or have it replaced if
damaged. DO NOT RUN THE PRESSURE
WASHER IF THE SCREEN IS DAMAGED.
Connect garden hose to water inlet. Tighten by
hand. (Figure 8)
Turn ON the water (open valve completely).
Squeeze trigger on gun to purge pump system of
air and impurities.
CAUTION: Before starting the pressure
washer, be sure you are wearing adequate eye protection.
Figure 7 Connect high pressure hose to
pump.
Figure 6 Connect high pressure hose
to spray gun.
Figure 8 Connect the garden hose to water
inlet and turn ON the water.
Figure 5 Add gasoline to fuel tank.
Gas Cap
Connect High Pressure
Hose Here
Check Screen for Damage
Generac 2000PSI High Pressure Washer
GENERAC
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High Pressure Washer
Attach nozzle extension to spray gun. Tighten by
hand (Figure 9).
CHECKLIST BEFORE
STARTING ENGINE
If you have reached this point, look back over the
assembly to see if you have performed all of the following.
Check for properly tightened hose connections
(high pressure and water supply) and for tight connections and that there are no kinks, cuts, or
damage to the high pressure hose.
Check that oil has been added to proper level in
engine crankcase before trying to start the pressure
washer.
Add proper gasoline to fuel tank.
Provide proper water supply (not to exceed 140°F).
Be sure to read Safety Rules and Operation sec-
tions before using the pressure washer.
Figure 9 Connect nozzle extension to spray
gun.
Generac 2000PSI High Pressure Washer
GENERAC
9
High Pressure Washer
HOW TO USE YOUR
PRESSURE WASHER
If you have any problems operating your pressure
washer, please call the pressure washer helpline at
1-800-270-1408.
You have assembled your high pressure washer and
have prepared the engine for starting. You are now
ready to clean your car, boat or the outside of a building or whatever you plan to clean.
How to Start Your Engine
The best way to start your engine-powered pressure
washer for the first time is to follow these instructions
step-by-step. This starting information also applies
whenever you start the engine after you have let the
pressure washer sit idle for at least a day.
This pressure washer requires a water source that
flows at least 2 gallons per minute. Do not attempt
to siphon water from a non-pressurized container. Place the pressure washer close enough to
an outside water source so that no more than 50' of
garden hose is needed.
Check that the high pressure hose is tightly con-
nected to the spray gun and to the pump. See
ASSEMBLY section for illustrations.
Connect the garden hose to water inlet on the pres-
sure washer pump and turn the water on all the
way.
IMPORTANT: Do not run pump without the water
supply connected and turned on. You must follow this
caution or the pump will be damaged.
Move the Throttle Control Lever to the Fast
position
Set Choke Lever to Choke position. Note: This is
a multi-position choke.
Note: For a warm engine, be sure the Throttle Control
Lever is in the Fast position and the Choke Lever is in
the Run position.
Squeeze the trigger on the spray gun to relieve air
pressure caused by turning ON the water. Water
will spew out the gun in a thin stream. Continue to
hold trigger until you have a steady stream of water
and no air remains.This will make it easier to pull
start the engine. Release the trigger.
Apply the safety latch to the spray gun trigger
(Figure 10).
Grasp rope handle and pull slowly until you feel
some resistance. Then pull cord rapidly to overcome compression, prevent kickback and start the
engine. Let rope return to starter slowly.
Note: Always keep the Throttle Control Lever in the
Fast position when operating the pressure washer.
When the engine starts, gradually move the Choke
Lever from one position to the next until it is in the
Run position.
If after 3 pulls the engine fails to start, disengage the
spray gun safety latch, squeeze the trigger to relive
water pressure, re-engage the spray gun safety latch,
move the Choke Lever to the Run position and pull the
recoil starter handle rapidly (Max. 3 pulls).
How to Stop Your Pressure
Washer
Move the Throttle Control Lever to the Slow position.
Wait for the engine to idle down.
Move the Throttle Lever Lever to the Stop position.
Simply shutting off the engine will not release pres-
sure in the system. Squeeze trigger on the spray
gun to relieve pressure in the hose.
Note: A small amount of water will squirt out when
you release the pressure.
Figure 10 Squeeze trigger to relieve water
pressure, release trigger and turn
the safety latch ON.
Safety Latch ON
Generac 2000PSI High Pressure Washer
GENERAC
10
High Pressure Washer
How to Use the Adjustable
Nozzle and Adjust Pressure
You now should know how to START your pressure
washer and how to STOP it. The information in this
section will tell you how to adjust the spray pattern
and apply detergent or any other cleaning chemicals.
DANGER! Never adjust spray pattern
when spraying. Never put hands in front
of nozzle to adjust spray pattern.
On the end of your spray gun is a nozzle that you can
slide forward and backward and that you can also
twist from side to side. With the adjustable nozzle you
can adjust the spray pattern to be either high pressure or low pressure. You can also adjust the spray
so it is concentrated in a stream pattern or expanded
into a fan pattern.
Slide the nozzle forward when you wish to adjust
the spray to low pressure mode (Figure 11). Slide
the nozzle backward to achieve high pressure.
Located on the side of the pump is a pressure con-
trol knob. You can increase and decrease the
pressure of the spray by turning the knob clockwise
or counterclockwise respectively (Figure 12).
Point the nozzle toward the ground and press the
trigger to test the pattern.
Twisting the nozzle adjusts the spray pattern from a
narrow pattern to a fan pattern.
For most effective cleaning, keep spray nozzle
between 8 to 24 inches away from cleaning sur-
face.
If you get spray nozzle too close, especially using
high pressure mode, you may damage the cleaning
surface.
Do not get closer than 6 inches when cleaning
automobile tires.
Figure 11 Using the adjustable nozzle.
Slide Nozzle Backward
for High Pressure
Mode
Slide Nozzle Forward
for low pressure
mode and detergent
application
Twist nozzle counterclockwise for fan
spray pattern
Twist nozzle clockwise for narrow
spray pattern
Figure 12 Pressure control knob.
Pressure Control Knob
Generac 2000PSI High Pressure Washer
GENERAC
11
High Pressure Washer
Applying Detergent with the
Adjustable Nozzle
IMPORTANT: Use soaps designed specifically for
pressure washers. Household detergents could
damage the pump.
IMPORTANT: You must attach all hoses before you
start the engine. Starting the engine without all the
hoses connected and without the water turned ON
will damage the pump.
To apply detergent follow these steps:
Review the use of adjustable nozzles on Page 10.
Prepare the detergent solution as required by the
job.
Hang the detergent solution on hook of the wire-
form on the handle as shown (Figure 13).
Place small filter end of the chemical injecting tube
into the detergent container.
Slide the adjustable nozzle forward to low pressure
mode. Detergent cannot be applied with nozzle in
high pressure position.
IMPORTANT: Detergent cannot be applied without
the water source turned on.
Make sure garden hose is connected to water inlet.
Check that high pressure hose is connected to
spray gun and pump (see ASSEMBLY), and start
engine.
Apply detergent to a dry surface, starting from the
bottom and working up to avoid streaking.
Allow the detergent to soak in for 3-5 minutes
before washing and rinsing.
For washing, start at lower portion of area to be
washed and work upward, using long, even, overlapping strokes.
CAUTION: Keep the plastic injector tube
from coming in contact with the hot muffler. This will damage the plastic tube.
When inserting the filter into a cleaning
agent bottle, route the tube so as to keep it
from inadvertently contacting the hot muffler.
Pressure Washer Rinsing
WARNING: Be extremely careful if you
must use the pressure washer from a
ladder, scaffolding or any other relatively
unstable location. Pressure in a running
washer builds as you climb. When you
press the trigger, the recoil from the initial
spray could force you to fall. The high pressure spray could also force you to fall if you
are too close to the cleaning surface.
For Rinsing:
Slide nozzle backward to high pressure and wait for
detergent to clear.
Keep the spray gun a safe distance from the area
you plan to spray.
Apply a high pressure spray to an small area and
then check the surface for damage. If no damage
is found, you can assume it is okay to continue
cleaning.
Start at top of area to be rinsed, working down with
same overlapping strokes as you used for cleaning.
Note: You can also stop detergent from flowing by
simply removing siphon from bottle.
Automatic Cool Down System
(also known as Thermal Relief)
If you run the engine on your pressure washer for 3-5
minutes without pressing the trigger on the spray gun,
circulating water in the pump can reach a temperature between 140145°F. When the water reaches
this temperature, the automatic cool down system
engages and cools the pump by discharging the
warm water onto the ground. This system prevents
internal damage to the pump.
Figure 13 Insert the small filter into container
of cleaning solution.
Generac 2000PSI High Pressure Washer
GENERAC
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High Pressure Washer
GENERAL MAINTENANCE
RECOMMENDATIONS
The warranty of the high pressure washer does not
cover items that have been subjected to operator
abuse or negligence. To receive full value from the
warranty, operator must maintain high pressure
washer as instructed in this manual.
Some adjustments will need to be made periodi-
cally to properly maintain your high pressure
washer.
All adjustments in the Service and Adjustments
section of the engine owners manual should be
made at least once each season.
Once a year you should clean or replace the spark
plug and clean or replace the air filter and check the
gun and wand assembly for wear. A new spark plug
and clean air filter assure proper fuel-air mixture
and help your engine run better and last longer.
BEFORE EACH USE
Check engine oil level.
Check water inlet screen for damage.
Check high pressure hose for leaks.
Check detergent inlet hose and filter for damage.
Check gun and wand assembly for leaks.
PRESSURE WASHER
MAINTENANCE
Check and Clean Inlet Screen
Examine screen on the water inlet. Clean if the
screen is clogged or replace if screen is damaged.
Check High Pressure Hose
High pressure hose can develop leaks from wear,
kinking, or abuse. Inspect hose each time before
using it. Check for cuts, leaks, abrasions or bulging of
cover, damage or movement of couplings. If any of
these conditions exist, replace hose immediately.
DANGER: Water spraying from a leak is
capable of injecting material into skin.
Inspect hose each time before using it.
Never repair a high pressure hose.
Replace it with another hose that meets
the maximum pressure rating of your
pressure washer.
Check Detergent Hose
Examine the filter on the detergent hose and clean if
clogged. Hose should fit tightly on barbed fitting.
Examine hose for leaks or tears. Replace the filter or
hose if either is damaged.
Check Gun and Wand
Examine hose connection to gun and make sure it is
secure. Test trigger by pressing it and making sure it
springs back into place when you release it. Put safety
latch in ON position and test trigger. You should not be
able to press trigger.
Purge Pump of Air and
Contaminants
To remove the air from the pump, follow these steps:
Set up the pressure washer as described in the
ASSEMBLY section and connect the water supply.
Remove the wand extension from the gun.
Squeeze the trigger on the gun and hold.
To remove any contaminants from the pump, follow
these steps:
Set up the pressure washer as described in the
ASSEMBLY section, and connect the water supply.
Remove the nozzle extension from the spray gun.
Start the engine according to instructions in OPER-
ATION section.
Squeeze the trigger on the spray gun and hold.
When the water supply is steady and constant,
engage the safety latch and refasten the nozzle
extension.
Cleaning Chemical Injector Hose
If you have used the chemical injector hose you must
flush it with clean water before stopping the engine.
Place the small filter end of the chemical injection
tube in a bucket of clean water.
Slide the adjustable nozzle forward.
Squeeze the spray gun trigger for five minutes to
flush the chemical injection tube.
Shut off the engine.
Important: Simply shutting OFF engine will not release
pressure in the system. When engine has shut down,
squeeze the trigger on the gun to relieve the pressure
in the hose.
Nozzle Maintenance
If the adjustable nozzle becomes restricted or
clogged with foreign materials, such as dirt, excessive
pump pressure may develop. If this nozzle becomes
partially clogged, it can cause a pulsing sensation
during use. This generally is not a pump related
problem, but rather a clogged or partially restricted
adjustable nozzle.
If the adjustable nozzle becomes clogged or partially
restricted, immediately clean the nozzle with the kit
included with your pressure washer by following
these instructions:
Shut off the engine and turn off the water supply.
Separate the nozzle extension from the gun.
Adjust the nozzle extension to the stream position.
Remove nozzle from the end of the wand extension
(Figure 17) using a 2mm or 5/64 allen wrench (like
the one included in the kit).
Use the wire included in the kit (Figure 17) or a
small paper clip to free the foreign materials clog-
ging or restricting the nozzle.
Figure 17 Removing and cleaning nozzle.
Remove additional debris by back flushing water
supply through wand extension (Figure 18). Back
flush between 30 to 60 seconds. Turn nozzle extension to stream spray and move nozzle forward and
backward while flushing.
Figure 18 Backflushing the nozzle.
Reinstall nozzle into the wand extension. DO NOT
overtighten.
Reconnect the nozzle extension to the spray gun.
Reconnect the water supply, turn on the water, and
start the engine.
Test the pressure washer by operating with nozzle
in the high and in the low position.
ENGINE MAINTENANCE
See the engine Owners Manual for instructions on
how to properly maintain the engine.
SERVICE AND
ADJUSTMENTS
See the engine Owners Manual for instructions on
how to properly service and adjust the engine
13
High Pressure Washer
Generac 2000PSI High Pressure Washer
GENERAC
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High Pressure Washer
PREPARING THE UNIT FOR
STORAGE
Water should not remain in the unit for long periods of
time. Sediments of minerals can deposit on pump
parts and freeze pump action. If you do not plan to
use the pressure washer for more than 30 days,
follow this procedure:
1.Flush chemical injection tube by placing the injector
filter into a pail of clean water while running pressure washer and squeezing the spray gun trigger
with the adjustable nozzle in low pressure mode.
Flush for five minutes.
2.Shut off the engine and let it cool, then remove all
hoses.
3.Place throttle lever in STOP position.
CAUTION: Be sure lever is in STOP
position before you continue. If you start
engine without proper water supply connected, you can damage pump.
4.Empty the pump of all pumped liquids by pulling
recoil handle about 6 times. This should remove
most of the liquid in the pump.
NOTE: To protect unit from freezing temperatures,
draw windshield washer fluid into pump by pouring
windshield washer fluid into a 3-foot section of garden
hose connected to inlet adapter and pulling recoil
handle twice.
5.Store in a clean, dry area.
STORING THE ENGINE
See the engine Owners manual for instructions on
how to properly store the engine.
GENERAC
Generac 2000PSI High Pressure Washer
NOTES
15
High Pressure Washer
GENERAC
Generac 2000PSI High Pressure Washer
TROUBLESHOOTING POINTS
Generac 2000PSI High Pressure Washer
GENERAC
16
High Pressure Washer
Problem Cause Correction
Pump has following problems: 1. Nozzle in low pressure mode. 1. Pull nozzle backward for high
failure to produce pressure, erratic pressure mode.
pressure, chattering, loss of pressure, 2. Water inlet is blocked. 2. Clear inlet
low water volume. 3. Inadequate water supply 3. Provide adequate water flow.
4. Inlet hose is kinked or leaking 4. Straighten inlet hose, patch leak.
5. Clogged inlet hose strainer. 5. Check and clean inlet hose
strainer.
6. Water supply is over 140°F. 6. Provide cooler water supply.
7. Outlet hose is blocked or leaks. 7. Clear blocks in outlet hose.
8. Gun leaks. 8. Replace gun.
9. Nozzle is obstructed. 9. Clear nozzle.
10. Pump is faulty. 10. Contact Generac service facility.
Detergent fails to mix with spray. 1. Detergent line is not submerged. 1. Insert chemical line into deter
gent.
2. Chemical filter is clogged. 2. Clean or replace filter/detergent
line.
3. Nozzle is in high pressure mode. 3. Push nozzle forward for
low pressure mode.
Engine runs good at no-load but bogs Engine speed is too slow. Move throttle control to FAST .
when load is added. position. If engine still bogs down
contact Generac service facility.
TROUBLESHOOTING POINTS
17
High Pressure Washer
GENERAC
Generac 2000PSI High Pressure Washer
PROBLEM CAUSE CORRECTION
Engine will not start; or starts 1. Low oil level 1. Fill crankcase to proper level.
and runs rough 2. Dirty air cleaner 2. Clean or replace air cleaner.
3. Out of gasoline. 3. Fill fuel tank.
4. Stale gasoline. 4. Drain gas tank; fill with fresh fuel.
5. Spark plug wire not connected 5. Connect wire to spark plug.
to spark plug
6. Bad spark plug. 6. Replace spark plug.
7. Water in gasoline. 7. Drain gas tank; fill with fresh fuel.
8. Overchoking. 8. Open choke fully and crank
engine.
9. Excessively rich fuel mixture. 9. Contact Generac service facility.
10. Intake valve stuck open or closed. 10. Contact Generac service facility.
11. Engine has lost compression. 11. Contact Generac service facility.
Engine shuts down during operation 1. Out of gasoline. 1. Fill fuel tank.
2. Low oil level. 2. Fill crankcase to proper level.
Engine lacks power. Dirty air filter. Replace air filter.
Engine hunts or falters. Choke is opened too soon. Move choke to halfway position
until engine runs smoothly.
GENERAC
EXPLODED VIEW PRESSURE WASHER
Drawing No. B2063
Generac 2000PSI High Pressure Washer
18
High Pressure Washer
18
REPAIR PARTS PRESSURE WASHER
Drawing No. B2063
GENERAC
19
High Pressure Washer
Generac 2000PSI High Pressure Washer
ITEM PART NO. DESCRIPTION. QTY.
1 B2058A BASE, VSPW 1
2 B1932 DECAL, Instructions 1
3 20566 DECAL, 1-800 Number 1
4 48031G CLAMP, Hose 3/16 1
5 B2192 DECAL, GENERAC 1
6 B1730 BOLT, Eye 1
7 50190 WASHER, M8 Flat 2
8 B2060 DECAL, Logo 2000 PSI 1
9 22145 WASHER, M8 Flat 3
11 30809 GROMMET, Chem Hose 1
13 B1631B BILLBOARD, Plastic 1
14 B1760 TIRE, 3.5 X 10 Black Mag 2
15 75402 PUSHNUT, 1/2 2
16 52858 NUT, M8 Locking Flange 5
17 A1408 CAP, Garden Hose Inlet 1
18 21424 CONNECTOR, Garden Hose 1
20 27007 MOUNT, Rubber Foot 2
21 B1214 HHCS, M8 X 1.25 X 45 Long 2
22 39414 HHCS, M8 x 35 2
23 52265 HHCS, M8 x 65 1
24 A1040B HOSE, Chemical 1
25 A1041 FILTER, Chemical Hose 1
26 B2216 ENGINE, Briggs & Stratton 6HP Quantum 1
27 A2097 SEAL, Engine Donut 1
30 A1803 PUMP, GPW-FH Assembly 1
31 97100 CAP, High Pressure 1
32 88056 DECAL, Data 1
33 79552 OVERLAMINATE 1
34 B1945A HANDLE, VS PW 1
35 97178 KNOB, PW Handle 2
38 31669 BOLT, 1/4-20 X 1.75 Carriage 1
39 B1969 HOSE, 1/4 X 25 1
40 97566 HANG TAG, Nozzle 1
41 B1867E WAND, Adjustable Nozzle 1
42 B1861 GUN, High Pressure 1
43 B1460 CAP, Vinyl Black 3
44 B1953 WIREFORM 1
GENERAC
Generac 2000PSI High Pressure Washer
Drawing No. B2274
EXPLODED VIEW XXXXXX...
20
High Pressure Washer
EXPLODED VIEW PUMP
GENERAC
REPAIR PARTS XXXXXX...
21
High Pressure Washer
Generac 2000PSI High Pressure Washer
REPAIR PARTS PUMP
21
Drawing No. B2274
ITEM PART NO. QTY DESCRIPTION ITEM PART NO. QTY DESCRIPTION
1 A2098 1 GASKET, Engine Adapter
2 96430A 1 ADAPTER, Engine
3965422BEARING, Eng. Adptr. Roller
Thrust 4 x 4
4 97675 1 C - RING, Cam Retainer
5 97570 1 WASHER, Thrust
6 95524 1 WASHER, Retainer
7 92479 4 LOCKWASHER, M8 Ribbed
8955314BOLT, SHC 5/16 - 24 x 3/4" Lg
9B11161ADAPTER, Engine Shaft 7/8"
10 97671V 1 CAM, Axial 6.0 Lift
12 93790 1 O RING, Crankcase 113.97 x 119.21 x
2.62
13 97568A 1 CRANKCASE, Pump
14 96400 3 SPRING, Piston Return
15 99427 3 ASSEMBLY, Ceramic Piston & Cap
16 94944 3 SHOE, Piston Pivot
17 99735 1 ASSEMBLY, Breather
18 93680 3 SEAL, OiI Piston
19 93668 3 SPACER, Pilot
20 93667 3 SEAL, U - Cup ELF
21 93652 1 SPRING, Thermal Relief Actuator
22 95416 1 PISTON, Thermal Relief Actuator
23 93876 1 O RING, Thermal Relief 2.9 x 6.5 x 1.78
24 A1320 1 SPACER, Inlet Plate
25 93873 6 LOCKWASHER, M6 Ribbed
26 40945 6 SCREW, SHC M6 x 1.0 x 20 mm Lg
27 A2069 1 GASKET, Head
28 A2062 3 SEAT, Check Valve Inlet
29 A2060 6 POPPET, Check Valve
30 97931 3 CAGE, Check Valve Inlet
31 B2640 6 O RING, Chk Valve 12.4 x 15.96 x 1.78
32 97929 6 SPRING, Check Valve Outlet
33 97843 1 O RING, 9.25 x 12.81 x 1.78
34 A2017 2 PAR -BACK, Backup Ring
35 A1719 1 PIN, 2.0 Dia. Spindle
36 A1711 1 SPINDLE, Pressure Regulator
37 93656 1 O RING, Spindle 1/4 x 3/8 x 1/16 cs
38 A3829 1 O RING, Retainer Nut 14 x 17.56 x 1.78
39 A1712 1 NUT, Retainer - Spindle
40 A1716 1 SPRING, Unloader
41 A2016 1 PAR-BACK, Backup Ring
42 A2039 1 HANDLE, Unloader
43 A2013 6 BOLT, Head M8 x 1.25 x 70mm Lg
44 97840 3 O RING, Chk Valve Cap15.6 x 19.16 x
1.78
45 97841 3 CAP, Outlet Port
46 20002 3 CAGE, Check Valve Outlet
47 A3805 1 O RING, Venturi 10.82 x 14.38 x
1.78
48 A2217 3 SEAT, Check Valve Outlet
49 A1318 1 CYLINDER, Head
50 B1758 1 PLUG, Button M8 x 1.25 x 8 mm
51 96053 3 SEAL, High Pressure
52 96015 3 RING, Bearing
53 A1717 1 MAGNET, Ball Deflector
54 B1757 4 PLUG, Button M6 x 1.0 x 8 mm
55 A1718 1 SET SCREW, M8 - 1.25 x 8 mm
56 93644 1 ACTUATOR, Thermal Relief
57 95380 1 SPRING, Chemical Injector
58 95379 1 BALL, 5.5 dia. Chemical Injector
59 A1575 1 BARB HOSE, Brass with Nylon Insert
60 97855 1 O RING, Ball Seat 6.5 x 10.5 x 2 cs
61 A1713 1 SEAT, Ball Unloader
62 A2015 1 BALL, Stainless Steel 9/32 Dia.
63 A2503 1 SEAT, Trapped Line Pressure
64 A2756 1 VALVE, Shuttle Piston
65 89138 1 SPRING, Check Valve
66 21123 1 O RING, 3.68 x 7.24 x 1.78 cs
67 A1714 1 VENTURI, Chemical
68 B2236 1 LOCKNUT, M6 x 1.0 Nylon
69 B2241 1 CAP, Plastic
70 A2097 1 O-RING, 1-5/8 x 3/16
73 B2665 6 WASHER
Generac 2000PSI High Pressure Washer
GENERAC
LIMITED PRESSURE WASHER WARRANTIES
(includes Master Contractor)
GENERAC warrants to the original retail purchaser, the pressure washer manufactured by GENERAC to be
free from defects in material and workmanship for the period(s) set forth below from the date of original purchase. This warranty is not transferable. The term original purchaser means the person for whom the
pressure washer is originally purchased.
Warranty Schedules
Electric Power Washer 1 year (does not apply to commercial or rental operations)
CONSUMER* COMMERCIAL*
Generac GN-Series Engine-driven Engine: 2 years 1 year
Power Washer (2nd year parts only)
Pump: 1 year 90 days
All Other Engine-driven Engine: Warranted solely by Warranted solely by
Power Washers Engine Manufacturer Engine Manufacturer
Pump: 1 year 90 days
* NOTE: For the purpose of this warranty consumer use means personal residential household use
by original purchaser. Commercial Use means all other uses, including rental, construction, commercial and income producing purposes. Once a pressure washer has experienced commercial use,
it shall thereafter be considered a commercial use pressure washer for the purposes of this warranty.
During said warranty period, GENERAC will, at its option, repair or replace any part which, upon examination
by GENERAC or GENERAC Authorized Dealers, is found to be defective under normal use and service**.
All transportation costs under warranty, including return to the factory if necessary, are to be borne by the purchaser and prepaid by the purchaser.
** NORMAL WEAR: As with all mechanical devices, the GN-Series engines need periodic parts service and replacement to perform well. This warranty will not cover repair when normal use has
exhausted the life of a part or an engine.
THIS WARRANTY DOES NOT INCLUDE: Used products and demonstration equipment. Parts such as
GUNS, HOSES, WANDS, NOZZLES or other wear items such as quick couplers, oil, gauges, belts, O-rings,
filters, pump packing, etc. Pumps which have been run without water supplied. Damage or malfunctions
resulting from: accidents, abuse, modifications, alterations, or improper servicing. Freezing or chemical deterioration. Normal maintenance such as adjustments, fuel system cleaning and obstruction (due to chemical,
dirt, carbon or lime, etc.).
THIS WARRANTY IS IN PLACE OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, SPECIFICALLY,
GENERAC MAKES NO OTHER WARRANTIES AS TO MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. The duration of any implied warranties which cannot be disclaimed is limited to the time
period as specified in the express warranty. LIABILITY FOR CONSEQUENTIAL, INCIDENTAL, OR SPECIAL
DAMAGES UNDER ANY AND ALL WARRANTIES IS EXCLUDED, EVEN IF SUCH DAMAGES ARE A
DIRECT RESULT OF GENERACs NEGLIGENCE. Some states do not allow limitations on how long an
implied warranty lasts, or the exclusion or limitation of incidental or consequential damages, so the above limitations or exclusions may not apply to you. This warranty gives you specific legal rights and you may also
have other rights, which vary from state to state.
For service, see your nearest GENERAC authorized warranty service facility or call 1-800-333-1322. Warranty service can be performed only by a GENERAC authorized service facility. This warranty will not apply
to service at any other facility. At the time of requesting warranty service, evidence of original purchase date
must be presented.
GENERAC CORPORATION
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