Page 1
This is the safety alert symbol. It is used to alert you to potential personal injury hazards.
Obey all safety messages that follow this symbol to avoid possible injury or death.
Model No. 1417-0 (2,500 PSI High Pressure Washer) Manual No. B5189 Revision 1 (4/3/2001)
2500PSI
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 CT
Visit our Generac website: www.generac-portables.com
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Generac Portable Products 2,500 PSI High Pressure Washer
22
EQUIPMENT
DESCRIPTION
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.
This manual contains information for an high pressure
washer that operates at 2,500 PSI at a flow rate of
3.0 gallons per minute. This high quality residential system
features large 10” wheels, a pump equipped with an
automatic cool down system, a chemical injection system,
quick connect nozzles, safety goggles, a heavy duty 50’
hose, and more.
Please read and retain this manual. The instructions will
enable you to assemble your unit, and maintain your high
pressure washer properly.
Every effort has been made to ensure that the information
in this manual is both accurate and current. However,
Generac reserves the right to change, alter or otherwise
improve the product and its documentation at any time
without prior notice.
Should you experience any problem you cannot easily fix,
call the pressure washer helpline at 1-800-270-1408.
CUSTOMER RESPONSIBILITIES
• Read and observe the safety rules.
• Follow regular schedule in maintaining, caring for and
using your high pressure washer.
• For off-season storage, review “Preparing The Unit For
Storage” on page 13.
SAFETY RULES
CAUTION! When setting up, transporting,
adjusting or making repairs to your high pressure
washer, always disconnect the spark plug wire from
the spark plug and place the wire where it cannot
contact spark plug.
DANGER! Engine exhaust 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.
WARNING! 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.
Read this manual carefully and become familiar
with your pressure washer. Know its applications,
its limitations, and any hazards involved.
• Locate this pressure washer in areas away from
combustible materials, combustible fumes or dust.
• The high pressure equipment is designed to be used with
Generac authorized parts ONLY. If you use this
equipment with parts that Do Not comply with
minimum specifications, the user assumes all risks and
liabilities.
• Do Not allow CHILDREN to operate the pressure
washer at any time.
• Always be certain the spray gun, nozzles and accessories
are correctly attached.
• Do Not wear loose clothing, jewelry or anything that
may be caught in the starter or other rotating parts.
The engine exhaust from this product contains
chemicals known to the State of California to
cause cancer, birth defects, or other
reproductive harm.
WARNING:
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Generac Portable Products 2,500 PSI High Pressure Washer
33
• Before starting the pressure washer in cold weather,
check all parts of the equipment and be sure ice has not
formed there.
• Never operate units with broken or missing parts, or
without protective housing or covers.
• 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.
• Always wear eye protection when you use this
equipment or when you are in the vicinity where the
equipment is in use.
• The cleaning area should have adequate slopes and
drainage to reduce the possibility of a fall due to slippery
surfaces.
• Do Not by–pass any safety device on this machine.
• Operate and store this unit on a stable surface.
• 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 spray flammable liquids.
• 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 leaks in high pressure hose.
• High pressure spray can cause paint chips or other
particles to become airborne.
• Do Not operate the pressure washer above the rated
pressure.
• High pressure spray may damage fragile items including
glass. Do Not point spray gun at glass when in the jet
spray mode.
• Keep water spray away from electric wiring or fatal
electric shock may result.
• Never use a spray gun which does not have a trigger
lock or trigger guard in place and in working order.
• Never aim the gun at people, animals or plants. The
high pressure stream of water that this equipment
produces can pierce skin and its underlying tissues,
leading to serious injury and possible amputation.
• 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.
• Do Not secure the spray gun in the (open) position.
• 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.
• Never move the machine by pulling on the high pressure
hose. Use the handle provided on the unit.
• High pressure hose can develop leaks from wear, kinking,
abuse, etc. Water spraying from a leak is capable of
injecting 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 conditions exist, replace hose
immediately. Never repair high pressure hose. Replace it
with another hose that exceeds maximum pressure
rating of your unit.
• Check the fuel system for leaks or signs of deterioration,
such as chafed or spongy hose, loose or missing clamps,
or damaged tank or cap. Correct all defects before
operating the pressure washer.
• 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.
• The muffler and engine heat up during operation and
remain hot immediately after shutting it down. Avoid
contact with a hot muffler or engine as you could be
severely burned.
• The muffler and air cleaner must be installed and in good
condition before operating the pressure washer. These
components act as spark arresters if the engine backfires.
In the State of California a spark arrester 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 muffler with a spark arrester, it
must be maintained in effective working order. You can
order a spark arrester through your authorized Honda
service dealer.
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Generac Portable Products 2,500 PSI High Pressure Washer
44
High
Pressure
Outlet
Pump equipped with Automatic
Cool Down System
Spray Gun
Quick Connect Nozzle Storage
Water Inlet
Oil Fill Cap
Pressure
Control
Knob
High Pressure Hose
Fuel Tank
View of
Pump
Throttle Lever
Choke Lever
Recoil Starter
(on front of engine)
Air Cleaner
Chemical Injection Tube
KNOW YOUR PRESSURE WASHER
Read this owner’s manual and safety rules before operating your high pressure washer.
Compare the illustrations with your high pressure washer to familiarize yourself with the location of the controls. Save this
manual for future reference.
Air Cleaner — Dry type filter element limits the amount
of dirt and dust that gets in the engine.
Automatic Cool Down System — Cycles water out of
pump when temperature reaches 140°-145°F.
Chemical Injection Tube—Used to siphon chemical
from the detergent container to the pump.
Choke Lever — Prepares a cold engine for starting.
Fuel Tank — Fill engine with regular unleaded gasoline
here.
High Pressure Hose — Connect one end to water
pump and the other end to spray gun. Store hose on hook
on the rear of the unit
High Pressure Outlet — Connection for high pressure
hose.
Oil Fill Cap —Fill engine with oil here. See engine
owner’s manual for oil requirements.
Pressure Control Knob — Varies the pressure of the
high pressure spray.
Pump — Develops high water pressure.
Quick Connect Nozzle Storage — Place all quick
connect nozzles here for ready access.
Recoil Starter — Used for starting the engine manually.
Spray Gun — Controls the application of water onto
cleaning surface with trigger. Includes safety latch.
Throttle Lever—Sets engine in starting mode for recoil
starter and stops a running engine.
Water Inlet — Connection for garden hose.
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Generac Portable Products 2,500 PSI High Pressure Washer
55
IMPORTANT: Read entire owner’s manual before you
attempt to assemble or operate your new pressure washer.
REMOVE PRESSURE
WASHER FROM
CARTON
• Remove the handle and parts box included with pressure
washer.
• Slice two corners at the 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
• High Pressure Hose
• Handle
• Parts Box containing:
- 20oz Oil Bottle
- Goggles
- Nozzle Cleaning Kit
- Bag containing 5 multi–colored nozzles
- O–Ring Maintenance Kit
- Owner’s Manual
- Engine Manual
- Warranty Card
- Engine Warranty
- Emissions Control Warranty
- Spray Gun
- Nozzle Extension with Quick–Connect Fitting
- Parts Bag containing:
4 Carriage Bolts
4 Flange Nuts
If any of the above parts are missing or damaged, call the
pressure washer helpline at 1–800–270–1408.
PREPARING 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:
• Fill out and send in your registration card for a valid
warranty.
• Attach the handle to the main unit.
• Add oil to the engine.
• Add fuel to the fuel tank.
• Connect the high pressure hose to the spray gun and the
pump.
• Connect the water supply to the pump.
• Connect nozzle extension to gun.
• Select and install desired nozzle.
Attach Handle to the Pressure
Washer
Use either a 13mm wrench or adjustable wrench to attach
the handle to the pressure washer.
To attach handle to the pressure washer:
• Slowly tip the pressure washer forward and let it gently
rest on the front bumper (Figure 1).
Figure 1 — Attach Handle to Pressure Washer
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Generac Portable Products 2,500 PSI High Pressure Washer
66
• Align the holes on the handle with the holes on the base.
• Insert the carriage bolts provided to hold the handle in
place.
• Secure handle to the pressure washer using the four
provided flange nuts.
• Slowly tip the pressure washer back in place and insert
the multi–colored nozzles in the spaces provided in the
handle.
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.
• Place pressure washer on a level surface.
• Refer to the engine owners manual to add recommended
oil to engine.
NOTE: Check oil often during engine break–in. Refer to
engine owner’s manual for recommendations.
NOTE: The pump is pre-lubricated and sealed, requiring
no additional lubrication for the life of the pump.
Add Gasoline
WARNING! Never fill fuel tank indoors. or
when engine is running or hot. Do Not smoke
when filling fuel tank.
WARNING! Never fill fuel tank completely full.
Fill tank to the bottom of the filler neck to provide
space for fuel expansion. Wipe away any fuel spillage
from engine and equipment before starting.
• Use clean fuel and store in approved, clean covered
containers. Use clean fill funnels. Never use “stale”
gasoline left over from last season or gasoline stored for
long periods.
• Clean the area around the fuel fill cap, remove the cap.
• Slowly add regular UNLEADED gasoline to fuel tank.
Use a funnel to prevent spillage (Figure 2).
• Install the fuel cap and wipe up any spilled gasoline.
Connect Hose and Water Supply to
Pump
IMPORTANT: You must assemble the nozzle extension
and attach all hoses before you start the engine. Starting
engine without all hoses connected and water supplied will
damage the pump.
• Uncoil high pressure hose and attach quick connect end
of hose to the base of the spray gun (Figure 3). Pull
down on the collar of the quick connect, slide onto the
gun and let go of collar. Tug on hose to be sure of a
tight connection.
Maximum Fuel Level
Figure 2 — Add Gasoline to Fuel Tank.
Connect high
pressure hose
here.
Figure 3 — Connect High Pressure Hose to Spray Gun
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Generac Portable Products 2,500 PSI High Pressure Washer
77
• Attach the other end of the high pressure hose to the
high pressure outlet on the pump (Figure 4). Pull down
on the collar of the quick connect, slide onto the pump
and let go of collar. Pull on hose to be sure of a tight
connection.
• Before you connect your garden hose to the water inlet,
inspect the inlet screen (Figure 5). Clean the screen if it
contains debris or have it replaced if damaged. DO NOT
RUN THE PRESSURE WASHER IF THE SCREEN IS
DAMAGED. NEVER SIPHON INLET WATER.
• Run water through your garden hose for 30 seconds to
clean out any debris.
• Connect the garden hose to the water inlet. Tighten by
hand (Figure 5).
CAUTION! There MUST be at least ten feet of
unrestricted garden hose between the pressure washer
inlet and any flow shut off device, such as a ‘Y’ shut-off
connector or other convenience-type water shut-off valve.
Damage to pressure washer resulting from disregarding this
warning will not be covered by the warranty.
• Turn ON the water.
• Squeeze the trigger on the gun until you have a steady
stream of water to purge the pump system of air and
impurities.
CAUTION! Before starting the pressure washer,
be sure you are wearing adequate eye protection.
CHECKLIST BEFORE
STARTING ENGINE
Review the assembly to ensure you have performed all of
the following.
• Check to make sure that there are no kinks, cuts, or
damage to the high pressure hose.
• Check that oil has been added to the proper level in the
engine crankcase.
• Add the proper gasoline to fuel tank.
• Provide a water supply of adequate flow (not to exceed
100°F).
• Be sure to read the “Safety Rules” and “Preparing
Pressure Washer For Use” sections before using the
pressure washer.
Figure 4 — Connections to Pump
Figure 5 — Connect Garden Hose to Water Inlet
Inspect inlet
screen, Do
Not use if
damaged, clean
if dirty.
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Generac Portable Products 2,500 PSI High Pressure Washer
88
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.
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.
• Place the pressure washer in an area close enough to an
outside water source that can flow at a rate of
3.3 gallons per minute or more.
• Make sure the unit is in a level position.
• Check that the high pressure hose is tightly connected to
the spray gun and to the pump. See “Preparing Pressure
Washer for Use” on page 5.
• Connect the garden hose to the water inlet on the
pressure washer pump and turn on the water.
CAUTION! Do Not run the pump without the water
supply connected and turned on. You must follow this
caution or the pump will be damaged.
• Squeeze the trigger on the spray gun to relieve the air
pressure caused by turning ON the water. Water will
discharge from the gun in a thin stream. Hold the trigger
until a steady stream of water appears. This will make it
easier to pull start the engine.
• Move the fuel valve to the “On” position (Figure 6).
• Move the throttle lever to the “Fast” position (Figure 7).
• To start a cold engine, move the choke lever to the
“Closed” position. To restart a warm engine, leave
the choke lever in the “Open” position (Figure 8).
• Set the engine switch to the “On” position (Figure 9).
• Grasp starter grip and pull slowly until you feel some
resistance. Then pull cord out with rapid full arm stroke.
Let rope return slowly. Do Not let rope “snap back”
against starter.
• If the choke lever has been moved to the “Closed”
position to start the engine, gradually move it to the
“Open” position as the engine warms up.
Figure 6 — Fuel Valve
On
Off
Figure 7 — Throttle Positions
Throttle Lever
Fast
Slow
Figure 8 — Choke Positions
Choke Lever
Closed
Open
Figure 9 — Engine Switch
Off
Engine Switch
On
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Generac Portable Products 2,500 PSI High Pressure Washer
99
• With the engine running, engage the safety latch to the
spray gun trigger (Figure 10).
• Attach the nozzle extension to the spray gun. Tighten by
hand (Figure 11).
How to Stop Your Pressure Washer
• Move the throttle lever to the “Slow” position.
• Wait for the engine to idle down.
• Move the engine switch to the “Off” position.
• Simply shutting off the engine will not release pressure 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
squeeze the trigger.
How to Use the Nozzles
If you have any problems operating your pressure washer,
please call the pressure washer helpline at
1-800-270-1408.
CAUTION! Never exchange nozzles without
locking the safety latch on the trigger.
The quick–connect on the nozzle extension allows you to
switch between five different nozzles. The nozzles vary the
spray pattern as shown below (Figure 12).
Follow these instructions to change nozzles:
• Engage the safety latch on the spray gun.
• Pull back the collar on the quick–connect and pull the
current nozzle off. Store the nozzle in the space provided
on the control panel.
NOTE: For a more gentle rinse, select the white 40° or
green 25° nozzle. To scour the surface, select the yellow
15° or red 0° nozzle. To apply chemical, select the black
nozzle.
• Pull back on the collar, insert the new nozzle and release
the collar. Tug on the nozzle to make sure it is securely
in place.
• For most effective cleaning, keep the spray nozzle
between 8 to 24 inches away from the cleaning surface. If
you get the spray nozzle too close, you may damage the
cleaning surface.
White
40°
Green
25°
Black
25°
Yellow
15°
Red
0°
Low Pressure
Use to apply
chemical
High Pressure
Figure 12 — Nozzles
Figure 11 — Connect Nozzle Extension to Spray Gun
Safety Latch
Figure 10 — Spray Gun with Safety Latch Engaged
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Generac Portable Products 2,500 PSI High Pressure Washer
1010
Cleaning and Applying Chemical
CAUTION! 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.
IMPORTANT: Use soaps designed specifically for
pressure washers. Household detergents could damage
the pump.
To apply detergent follow these steps:
• Review the use of the nozzles.
• Prepare the detergent solution as required by the
manufacturer.
• Place the small filter of the chemical injection tube tube
into the detergent container.
CAUTION! Keep the chemical injection tube from
coming in contact with the hot muffler.
• Make sure the black nozzle is installed.
NOTE: Detergent cannot be applied with the high
pressure nozzles (White, Green, Yellow, or Red).
• Make sure the garden hose is connected to the water
inlet. Check that the high pressure hose is connected to
the spray gun and the pump and start the engine.
• Apply the detergent to a dry surface, starting at lower
portion of area to be washed and work upward, using
long, even, overlapping strokes. Do Not allow the
detergent to dry on. This will prevent streaking.
• Allow the detergent to soak in between 3–5 minutes
before washing and rinsing. Reapply as needed to prevent
surface from drying.
Pressure Washer Rinsing
WARNING! Be extremely careful if you must use
the pressure washer from a ladder, scaffolding or
any other relatively unstable location. Hose water
pressure builds as you climb. When you press the
trigger, the recoil from the initial spray can be very
strong. The high pressure spray could cause you to
fall if you are too close to the cleaning surface.
After you have applied detergent, scour the surface
and rinse it clean as follows:
• Apply safety latch to spray gun.
• Remove the black chemical nozzle from the nozzle
extension.
• Select and install the desired high pressure nozzle
following the instructions “How to Use the Nozzles” on
page 9.
• Keep the spray gun a safe distance from the area you
plan to spray.
• Increase or decrease spray pressure by turning the
pressure control knob counterclockwise or clockwise
respectively (Figure 13). Use lower pressure to wash
items such a as a car or boat. Use higher pressure to
strip paint and degrease driveways.
• Apply a high pressure spray to a 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 the top of the area to be rinsed, working down
with same overlapping strokes as you used for cleaning.
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 140–145°F. When the water reaches this
temperature, the automatic cool down system engages and
cools the pump by discharging the warm water onto
the base and ground. This system prevents internal
damage to the pump.
Figure 13 — Pressure Control Knob
Pressure
Control
Knob
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Generac Portable Products 2,500 PSI High Pressure Washer
1111
SPECIFICATIONS
Rated Pressure . . . . . 2,500 PSI
Flow Rate . . . . . . . . . . 3.0 gallons per minute (gpm)
Detergent . . . . . . . . . . Use detergent approved for
pressure washers
Water Supply
Temperature . . . . . . . Not to Exceed 100°F
Automatic Cool . . . . Will cycle when water
Down System reaches 140°-145°F
Pump Oil . . . . . . . . . . . SAE 80W90, 9.6 oz (285mL)
GENERAL MAINTENANCE
RECOMMENDATIONS
The high pressure washer warranty does not cover items
that have been subjected to operator abuse or negligence.
To receive full value from the warranty, the operator must
maintain the high pressure washer as instructed in this
manual.
• Some adjustments will need to be made periodically to
properly maintain your high pressure washer.
• All adjustments in the Maintenance section of this 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
nozzle extension 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 chemical injection tube and filter for damage.
• Check gun and nozzle extension assembly for leaks.
• Rinse out garden hose to flush out debris.
PRESSURE WASHER
MAINTENANCE
Check and Clean Inlet Screen
Examine the screen on the water inlet. Clean it if the
screen is clogged or replace it if screen is damaged.
Check High Pressure Hose
The high pressure hose can develop leaks from wear,
kinking, or abuse. Inspect the 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 the hose immediately.
CAUTION! 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
exceeds the maximum pressure rating of your
pressure washer.
Check Gun and Nozzle Extension
Examine the hose connection to the gun and make sure it
is secure. Test the trigger by pressing it and making sure it
springs back into place when you release it. Put the safety
latch in the on position and test the trigger. You should not
be able to press the trigger.
Check In-Line Filter
Refer to Figure 14 and service the in-line filter if it
becomes clogged, as follows:
1. Detach spray gun and nozzle extension from high
pressure hose. Detach nozzle extension from spray
gun and remove o-ring and screen from nozzle
extension. Flush the screen, spray gun, and adjustable
nozzle extension with clean water to clear debris.
Figure 14 — Service In-Line Filter
Nozzle Extension
O-Ring
Filter Screen
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Generac Portable Products 2,500 PSI High Pressure Washer
1212
2. If the screen is damaged, the o-ring kit contains a
replacement in-line filter screen and an o-ring. If
undamaged, reuse screen.
3. Place the in-line filter screen into the threaded end of
the nozzle extension. Direction does not matter. Push
the screen in with the eraser end of a pencil until it
rests flat at the bottom of the opening. Take care to
not bend the screen.
4. Place the o-ring into the recess. Push the o-ring snugly
against the in-line filter screen.
5. Assemble the nozzle extension to the spray gun, as
described earlier in this manual.
Check Chemical Injection Tube
Examine the filter on the detergent hose and clean if
clogged. The tube should fit tightly on the barbed fitting.
Examine the tube for leaks or tears. Replace the filter or
tube if either is damaged.
Purge Pump of Air and
Contaminants
To remove air from the pump, follow these steps:
• Set up the pressure washer as described in “Preparing
Pressure Washer For Use”. Connect the water supply
and turn water on.
• Pull the trigger on the spray gun and hold.
• When the water supply is steady and constant, engage
the safety latch.
To remove contaminants from the pump, follow
these steps:
• Set up the pressure washer as described in “Preparing
Pressure Washer For Use”. Connect the water supply
and turn water on.
• Start the engine according to instructions in “To Start
Your Pressure Washer”.
• Remove nozzle extension from spray gun.
• Squeeze the trigger on the spray gun and hold.
• When the water supply is steady and constant, engage
the safety latch and reattach the nozzle extension.
Cleaning Chemical Injection Tube
If you have used the chemical injection tube you must flush
it with clean water before stopping the engine.
• Place the chemical injection tube in a bucket full of clean
water.
• Flush for 1–2 minutes.
• Shut off the engine.
IMPORTANT: Simply shutting OFF engine will not
release pressure in the system. When the engine has
stopped, squeeze the trigger on the gun to relieve the
pressure in the hose.
Nozzle Maintenance
A pulsing sensation felt while squeezing the spray gun
trigger may be caused by excessive pump pressure. The
principal cause of excessive pump pressure is a nozzle
clogged or restricted with foreign materials, such as dirt,
etc. To correct the problem, immediately clean the nozzle
using the tools included with your pressure washer and
follow these instructions:
1. Shut off the engine and turn off the water supply.
2. Remove the nozzle from the end of the nozzle
extension (Figure 15).
3. Remove the in-line filter from the other end of the
nozzle extension.
4. Use the wire included in the kit (or a small paper clip)
to free any foreign material clogging or restricting the
nozzle (Figure 15).
5. Using a garden hose, remove additional debris by back
flushing water through the nozzle extension
(Figure 16). Back flush between 30 to 60 seconds.
Use wire here
to remove
debris.
Figure 15 — Nozzle Maintenance
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Generac Portable Products 2,500 PSI High Pressure Washer
1313
6. Reinstall the nozzle and in-line filter into the nozzle
extension.
7. Reconnect the nozzle extension to the spray gun.
8. Reconnect the water supply, turn on the water, and
start the engine.
9. Test the pressure washer by operating with each of the
Quick Connect nozzles.
O-Ring Maintenance
Your pressure washer uses o-rings to keep hose and spray
gun connections tight and leak-free. Through the normal
operation of your unit, these o-rings may become worn or
damaged.
Provided with your pressure washer is an O–Ring
Maintenance Kit which includes replacement o-rings,
rubber washer and water inlet filter. Refer to the
instruction sheet provided in the kit to service your unit’s
o-rings. Note that not all of the parts in the kit will be used
on your unit.
To remove a worn or damaged o–ring:
• Use a small flathead screwdriver to get underneath the
o-ring and pry it off.
ENGINE MAINTENANCE
See the engine owner’s manual for instructions on how to
properly maintain the engine.
CAUTION! Avoid prolonged or repeated skin
contact with used motor oil. Used motor oil has
been shown to cause skin cancer in certain
laboratory animals. Thoroughly wash exposed areas
with soap and water.
KEEP OUT OF REACH OF CHILDREN. DON'T
POLLUTE. CONSERVE RESOURCES. RETURN
USED OIL TO COLLECTION CENTERS.
PREPARING 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 filter into a
pail of clean water while running pressure washer with
the black chemical nozzle. Flush for one to two
minutes.
2. Shut off the engine and let it cool, then remove all
hoses.
3. Move the throttle lever to the “SLOW” position.
4. Set engine switch to the “OFF” position.
CAUTION! Be sure switch is in “OFF” position before
you continue. If you start engine without proper water
supply connected, you can damage pump.
5. Empty the pump of all pumped liquids by pulling the
recoil handle about 6 times. This should remove most
of the liquid in the pump.
NOTE: To protect the unit from freezing temperatures,
draw RV antifreeze (no alcohol) into the pump by pouring
the antifreeze into a 3–foot section of garden hose
connected to inlet adapter and pulling recoil handle twice.
This process is also recommended to avoid lime/calcium
build-up in the pump during longer-term storage.
6. Store in a clean, dry area.
STORING THE ENGINE
See the engine owner’s manual for instructions on how to
properly store the engine.
Figure 16 — Backflushing the Nozzle Extension
Page 14
Generac Portable Products 2,500 PSI High Pressure Washer
1414
TROUBLESHOOTING
Problem Cause Correction
Pump has following
problems: Failure to produce
pressure, erratic pressure,
chattering, loss of pressure,
low water volume.
1. Low pressure nozzle installed.
2. Water inlet is blocked.
3. Inadequate water supply.
4. Inlet hose is kinked or leaking.
5. Clogged inlet hose strainer.
6. Water supply is over 140°F.
7. Outlet hose is blocked or leaks.
8. Gun leaks.
9. Nozzle is obstructed.
10. Pump is faulty.
1. Replace with high pressure nozzle.
2. Clear inlet.
3. Provide adequate water flow.
4. Straighten inlet hose, patch leak.
5. Check and clean inlet hose strainer.
6. Provide cooler water supply.
7. Clear blocks in outlet hose.
8. Replace gun.
9. Clean nozzle.
10. Contact Generac service facility.
Detergent fails to mix with
spray.
1. Chemical injection tube is not
submerged.
2. Chemical filter is clogged.
3. Dirty In-Line filter.
4. High pressure nozzle attached.
1. Insert chemical injection tube into
detergent.
2. Clean or replace filter/detergent
siphoning tube.
3. See “Check In-Line Filter” on page 11.
4. Use low pressure, black chemical
nozzle to apply detergent.
Engine runs good at no-load
but "bogs" when load is
added.
Engine speed is too slow. Move throttle control to “FAST” position.
If engine still "bogs down" contact
Generac service facility.
Engine will not start; or
starts and runs rough.
1. Low oil level.
2. Dirty air cleaner.
3. Out of gasoline.
4. Stale gasoline.
5. Spark plug wire not connected to
spark plug.
6. Bad spark plug.
7. Water in gasoline.
8. Overchoking.
9. Excessively rich fuel mixture.
10. Intake valve stuck open or closed.
11. Engine has lost compression.
1. Fill crankcase to proper level.
2. Clean or replace air cleaner.
3. Fill fuel tank.
4. Drain gas tank; fill with fresh fuel.
5. Connect wire to spark plug.
6. Replace spark plug.
7. Drain gas tank; fill with fresh fuel.
8. Open choke fully and crank engine.
9. Contact Honda service facility.
10. Contact Honda service facility.
11. Contact Honda service facility.
Engine shuts down during
operation.
1. Out of gasoline.
2. Low oil level.
1. Fill fuel tank.
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.
Page 15
Generac Portable Products 2,500 PSI High Pressure Washer
1515
NOTES
Page 16
Generac Portable Products 2,500 PSI High Pressure Washer
1616
EXPLODED VIEW – UNIT
Page 17
Generac Portable Products 2,500 PSI High Pressure Washer
1717
Item Part # Qty. Description
1 NSP 1 ENGINE
2 B2043 8 BOLT, 5/16" - 18 x 1-3/4" Carriage
3 BB2226 1 BASE
4 CB3861C 1 HANDLE
5 B4160 1 DECAL, Operating Instructions
6 99583 9 NUT, 5/16" - 18 Hex Flange
7 B2150 1 HOOK, 5/16" Square Neck Gun
8 B2516 2 CAP, Black Vinyl .280"
9 CB3866 1 BUMPER
10 30809 5 GROMMET, 1/8" - 11/16"
11 B4159 1 DECAL, 5 QD Nozzles
12 B5188 1 DECAL, Unit 1417
13 88521 2 ASSEMBLY, Wheel 10" Dia. x 4"
14 75402 2 PUSHNUT, .50"
15 48031G 1 CLAMP, Hose 7/16" Dia.
16 A1040A 1 HOSE, 54" Chemical Inject
17 A1041 1 FILTER, Chemical Hose
18 B4805 1 HOSE, 3/8" x 50'
19 87815 1 GOGGLES, Safety
20 B1436B 1 GUN, with Molded Grip
21 88681 1 CARD, Owners Registration
22 B4155 1 KIT, Nozzles QD
23 B5189 1 MANUAL, Owners 1417-0
24 B3858 1 ASSY., Wand Ext. with QD
25 B5214 1 MANUAL, Honda
26 BB3061B 2 OIL BOTTLE
27 188287 1 KIT, Nozzle Cleaning
28 B5830 1 KIT, O-Ring Maintenance
29 42909 2 HHCS, M8 - 1.25 x 30
30 50190 2 FLAT WASHER, 10GA - .34" x 1"
31 27007 2 VIB MOUNT, Donut Type
32 52858 2 NUT, Locking M8 - 1.25
33 21424 1 CONNECTOR, Garden Hose
34 21217 4 MOUNT, Rubber Shock
35 67989 8 NUT, M8 Flange Serrated
36 B1288 1 TAG, Breather Cap
37 B4224 1 SCREEN, Gun Inlet
38 97837 1 O-RING, Hi Pressure Trans.
39 NSP 1 PUMP, 2600PSI @ 3GPM (see pages 18-19)
40 185923 1 QUICK CONNECTOR, M22
41 B4196 1 KIT, Handle Hardware
PART LIST – UNIT
Page 18
Generac Portable Products 2,500 PSI High Pressure Washer
1818
EXPLODED VIEW–PUMP
Page 19
Generac Portable Products 2,500 PSI High Pressure Washer
1919
Item Part # Qty. Description
1 B2218 1 O-RING, Engine Adapter
2 B2260 1 ADAPTER, Housing, Cam
3 B2217 4 O-RING, Engine Adapter Bolt
4 B2261B 4 SCREW, Button Hd 5/16 - 24 x 3/4"
5 96400 3 SPRING, Piston Return
6 99735 1 ASSEMBLY, Oil Breather
7 93790 1 O-RING, Crankcase
8 40945 6 SHCS, M6 x 1.0 x 20mm
9 93652 1 SPRING, Thermal By-Pass
10 95416 1 PISTON, Thermal By-Pass
11 93876 1 O-RING, Thermal By-Pass
12 A2069 1 GASKET, Head
13 93644 1 ACTUATOR, Thermal By-Pass
14 96053 3 SEAL, High Pressure
15 96015 3 RING, Bearing
16 B2665 6 WASHER, Steel Special
17 A2013 6 BOLT, Head M8 x 1.25 x 70mm
18 97840 3 O-RING, Cap
19 97841 3 CAP, Outlet Port
20 A1320 1 SPACER PLATE, Inlet
21 93680 3 SEAL, Oil Piston
22 94944 3 SHOE, Piston Pivot
23 99427 3 ASSEMBLY, Ceramic Piston & Cap
24 185700 0 KIT, Crankcase
1 . . . . . . 1 O-RING, Engine Adapter
2 . . . . . . 1 ADAPTER, Housing, Cam
3 . . . . . . 4 O-RING, Engine Adapter Bolt
4 . . . . . . 4 SCREW, Button Hd 5/16 - 24 x 3/4"
5 . . . . . . 3 SPRING, Piston Return
6 . . . . . . 1 ASSEMBLY, Oil Breather
7 . . . . . . 1 O-RING, Crankcase
8 . . . . . . 6 SHCS, M6 x 1.0 x 20mm
12 . . . . . . 1 GASKET, Head
16 . . . . . . 6 WASHER, Steel Special
17 . . . . . . 6 BOLT, Head M8 x 1.25 x 70mm
21 . . . . . . 3 SEAL, Oil Piston
22 . . . . . . 3 SHOE, Piston Pivot
23 . . . . . . 3 ASSEMBLY, Ceramic Piston & Cap
25 . . . . . . 1 BEARING SET, Thrust 15.5
30 . . . . . . 3 SPACER, Pilot
31 . . . . . . 1 ASSEMBLY, Cam
26 . . . . . . 1 CAM, Axial 7.5 Lift
27 . . . . . . 1 WASHER, Thrust
28 . . . . . . 1 RETAINER, Push - On
29 . . . . . . 1 C-RING, Cam Retainer
33 . . . . . . 1 ADAPTER, Shaft Hex
32 . . . . . . 1 HOUSING, Piston
61 . . . . . . 1 BEARING SET, Cam
34 185752 0 KIT, Complete Head
12 . . . . . . 1 GASKET, Head
13 . . . . . . 1 ACTUATOR, Thermal By-Pass
14 . . . . . . 3 SEAL, High Pressure
15 . . . . . . 3 RING, Bearing
16 . . . . . . 6 WASHER, Steel Special
17 . . . . . . 6 BOLT, Head M8 x 1.25 x 70mm
18 . . . . . . 3 O-RING, Cap
19 . . . . . . 3 CAP, Outlet Port
36 . . . . . . 6 O-RING, Check Valve
37 . . . . . . 6 ASSEMBLY, Check Valve
39 . . . . . . 1 CAP, Plastic
40 . . . . . . 1 SET SCREW, M6 x 8
41 . . . . . . 1 HANDLE, Unloader
Item Part # Qty. Description
42 . . . . . 1 SPRING,Unloader
43 . . . . . . 1 ASSEMBLY, Spindle
45 . . . . . . 1 O-RING, Spindle
46 . . . . . . 1 SEAT, Ball Unloader
47 . . . . . . 1 BALL, Stainless Steel 9/32 Dia.
48 . . . . . . 1 SEAT, Trapped Line Pressure
49 . . . . . . 1 O-RING, Trapped Line Pressure
50 . . . . . . 1 VALVE, Shuttle Piston
51 . . . . . . 1 SPRING, Piston Trapped Pressure
52 . . . . . . 1 VENTURI, Chemical
53 . . . . . . 1 O-RING, Venturi
56 . . . . . . 1 ASSEMBLY, Head, Brass
60 . . . . . . 3 SPACER, High Pressure Seal
35 185933 0 KIT, Check Valve
16 . . . . . . 6 WASHER, Steel Special
17 . . . . . . 6 BOLT, Head M8 x 1.25 x 70mm
36 . . . . . . 6 O-RING, Check Valve
37 . . . . . . 6 ASSEMBLY, Check Valve
38 B3479 0 KIT, Unloader Spindle
39 . . . . . . 1 CAP, Plastic
40 . . . . . . 1 SET SCREW, M6 x 8
41 . . . . . . 1 HANDLE, Unloader
42 . . . . . . 1 SPRING,Unloader
43 . . . . . . 1 ASSEMBLY, Spindle
44 B3510 0 KIT, High Pressure Outlet
45 . . . . . . 1 O-RING, Spindle
46 . . . . . . 1 SEAT, Ball Unloader
47 . . . . . . 1 BALL, Stainless Steel 9/32 Dia.
48 . . . . . . 1 SEAT, Trapped Line Pressure
49 . . . . . . 1 O-RING, Trapped Line Pressure
50 . . . . . . 1 VALVE, Shuttle Piston
51 . . . . . . 1 SPRING, Piston Trapped Pressure
52 . . . . . . 1 VENTURI, Chemical
53 . . . . . . 1 O-RING, Venturi
54 185943 0 KIT, Chemical Injector
55 . . . . . . 1 BARB HOSE, Brass with Nylon Insert
57 . . . . . . 1 BALL, 5.5 dia. Chemical Injector
58 . . . . . . 1 SPRING, Chemical Injector
59 185926 0 KIT, O-Ring SeaIs
1 . . . . . . 1 O-RING, Engine Adapter
3 . . . . . . 4 O-RING, Engine Adapter Bolt
7 . . . . . . 1 O-RING, Crankcase
8 . . . . . . 6 SHCS, M6 x 1.0 x 20mm
9 . . . . . . 1 SPRING, Thermal By-Pass
10 . . . . . . 1 PISTON, Thermal By-Pass
11 . . . . . . 1 O-RING, Thermal By-Pass
12 . . . . . . 1 GASKET, Head
14 . . . . . . 3 SEAL, High Pressure
16 . . . . . . 6 WASHER, Steel Special
17 . . . . . . 6 BOLT, Head M8 x 1.25 x 70mm
18 . . . . . . 3 O-RING, Cap
21 . . . . . . 3 SEAL, Oil Piston
36 . . . . . . 6 O-RING, Check Valve
37 . . . . . . 6 ASSEMBLY, Check Valve
45 . . . . . . 1 O-RING, Spindle
49 . . . . . . 1 O-RING, Trapped Line Pressure
53 . . . . . . 1 O-RING, Venturi
60 . . . . . . 3 SPACER, High Pressure Seal
62 . . . . . . 3 SEAL, U-Cup
Item numbers 24, 34, 35, 38, 44, 54, and 59 are service kits and include all
parts shown within the box. Certain items may only be available as a part
of a kit.
PART LIST–PUMP
Page 20
LIMITED PRESSURE WASHER WARRANTY
GENERAC PORTABLE PRODUCTS (hereafter referred to as the COMPANY) warrants to the original retail purchaser, the
pressure washer manufactured by the COMPANY 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 applications)
CONSUMER* COMMERCIAL*
All Other Engine-driven Engine: Warranted solely by Warranted solely by
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, the COMPANY will, at its option, repair or replace any part which, upon examination by the
COMPANY or COMPANY-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, pressure washers need periodic parts service and
replacement to perform well. This warranty does not cover repair when normal use has exhausted the life
of a part or pressure washer pump.
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,
THE COMPANY 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 THE COMPANY'S NEGLIGENCE.
THE COMPANY ALSO DISCLAIMS ANY RESPONSIBILITY FOR INCIDENTAL OR CONSEQUENTIAL
DAMAGES SUCH AS THE LOSS OF TIME OR THE USE OF THE POWER EQUIPMENT, OR ANY
COMMERCIAL LOSS DUE TO THE FAILURE OF THE EQUIPMENT: AND ANY IMPLIED WARRANTIES
ARE LIMITED TO THE DURATION OF THIS WRITTEN
WARRANTY.
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 COMPANY-Authorized warranty service facility or call 1-877-544-0982. Warranty service
can be performed only by a COMPANY-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 Portable Products
Jefferson, Wisconsin U.S. A.
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