Generac Portable Products 2400PSI User manual

2400PSI
Pressure Washer Owner’s Manual
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.
Questions? Help is just a moment away!
Call: Generac Generator Helpline - 1-800-270-1408 M-F 8-5 CT
Web: www.generac-portables.com or www.briggsandstratton.com
Model No. 1675-0 (2,400 PSI Pressure Washer) Manual No. 190164GS Revision 0 (12/06/2001)

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Generac 2,400 PSI Pressure Washer
TABLE OF CONTENTS
Safety Rules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Know Your Pressure Washer . . . . . . . . . . . . . . . . . . . . . . 4
Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11
Product Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-14
Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Replacement Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . 16-19
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Last Page
EQUIPMENT
DESCRIPTION
Read this manual carefully and become familiar
with your pressure washer. Know its applications,
its limitations and any hazards involved.
Every effort has been made to ensure that information in
this manual is accurate and current. However, Generac
reserves the right to change, alter or otherwise improve the
product and this document at any time without prior notice.
SAFETY RULES
The safety alert symbol ( ) is used with a signal word
(DANGER, CAUTION, WARNING), a pictorial and/or a
safety message to alert you to hazards. DANGER
indicates a hazard which, if not avoided, will result in death
or serious injury. WARNING indicates a hazard which, if
not avoided, could result in death or serious injury.
CAUTION indicates a hazard which, if not avoided, might
result in minor or moderate injury. CAUTION, when
used without the alert symbol, indicates a situation that
could result in equipment damage. Follow safety messages
to avoid or reduce the risk of injury or death.
WHEN ADDING FUEL
• Turn pressure washer OFF and let it cool at least 2 minutes
before removing gas cap.
• Fill fuel tank outdoors.
• Do not overfill tank. Allow space for fuel expansion.
• Keep gasoline away from sparks, open flames, pilot lights, heat,
and other ignition sources.
• Do not light a cigarette or smoke.
WHEN OPERATING EQUIPMENT
• Do not tip engine or equipment at angle which causes
gasoline to spill.
• Do not spray flammable liquids.
WHEN TRANSPORTING OR REPAIRING EQUIPMENT
• Transport/repair with fuel tank EMPTY or with fuel shutoff
valve OFF.
WHEN STORING GASOLINE OR EQUIPMENT WITH
FUEL IN TANK
• Store away from furnaces, stoves, water heaters, clothes
dryers or other appliances that have pilot light or other
ignition source because they can ignite gasoline vapors.
Gasoline and its vapors are extremely
flammable and explosive.
Fire or explosion can cause severe burns or
death.
WARNING
• Never aim the spray gun at people, animals or plants.
• Do not allow CHILDREN to operate the pressure washer.
• Never repair high pressure hose. Replace it.
The high pressure stream of water that this
equipment produces can pierce skin and its
underlying tissues, leading to serious injury and
possible amputation.
WARNING
• Keep water spray away from electric wiring or fatal electric
shock may result.
Spray contact with electrical wiring can result in
electrocution.
WARNING
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. If you equip the muffler with a spark arrester,
it must be maintained in effective working order.
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 2,400 PSI Pressure Washer
• Operate pressure washer ONLY outdoors.
• 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.
Running engine gives off carbon monoxide, an
odorless, colorless, poison gas.
Some chemicals or detergents may be harmful if
inhaled or ingested, causing severe nausea,
fainting or poisoning.
Breathing carbon monoxide will cause nausea,
fainting or death.
DANGER
• Keep spray nozzle between 8 to 24 inches away from cleaning
surface.
• Be extremely careful if you must use the pressure washer from
a ladder, scaffolding or any other relatively unstable location.
• The cleaning area should have adequate slopes and drainage to
reduce the possibility of a fall due to slippery surfaces.
• Operate this unit on a stable surface.
The high pressure spray could also cause you to
fall if you are too close to the cleaning surface.
Pressure in a running washer builds as you
climb. When you press the trigger, the recoil
from the initial spray could cause you to fall.
Use of pressure washer can create puddles and
slippery surfaces.
WARNING
• Do not touch hot surfaces.
• Allow equipment to cool before touching.
Running engines produce heat. Temperature of
muffler and nearby areas can reach or exceed
150°F (65°C).
Severe burns can occur on contact.
WARNING
• Do not tamper with governed speed.
• Do not operate the pressure washer above the rated pressure.
Excessively high or low operating speeds increase risk
of injury and damage to pressure washer.
CAUTION
• Do not wear loose clothing, jewelry or anything that may be
caught in the starter or other rotating parts.
• Tie up long hair and remove jewelry.
Starter and other rotating parts can entangle
hands, hair, clothing, or accessories.
WARNING
WHEN ADJUSTING OR MAKING REPAIRS TO YOUR
HIGH PRESSURE WASHER
• Disconnect the spark plug wire from the spark plug and place
the wire where it cannot contact spark plug.
Unintentional sparking can result in fire or
electric shock.
WARNING
• Always wear eye protection when you use this equipment or
when you are in the vicinity where the equipment is in use.
High pressure spray can cause paint chips or
other particles to become airborne.
WARNING
• Do not point spray gun at glass when in the jet spray mode.
• Never aim the spray gun at plants.
High pressure spray may damage fragile items including
glass.
CAUTION

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Generac 2,400 PSI Pressure Washer
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 locations of various controls and
adjustments. Save this manual for future reference.
Chemical Injection Siphon/Filter
Spray Gun Nozzle Extension
with Quick
Connect
Throttle Lever
Choke Rod
Recoil Starter
(on front of engine)
Air Filter
Fuel Tank
Pump equipped with
Automatic Cool Down System
Water Inlet
Oil Fill Cap
Spray Nozzles
High Pressure Outlet
Accessory Tray — Provides convenient storage for
standard and optional accessories, such as brushes, turbo
wands, ect.
Air Filter — Protects engine by filtering dust and debris out
of intake air.
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.
Chemical Injection Siphon/Filter — Use to siphon
detergent or other pressure washer chemicals into the low
pressure stream.
Choke Rod — Prepares a cold engine for starting.
Fuel Tank — Fill tank with regular unleaded gasoline. Always
leave room for fuel expansion.
High Pressure Hose (not shown) — Connect one end to
the water pump and the other end to the spray gun.
High Pressure Outlet — To connect high pressure hose.
Nozzle Extension with Quick Connect — Allows you to
switch between four different spray nozzles.
Oil Fill Cap — Fill engine with oil here.
Pump — Develops high pressure.
Recoil Starter — Use for starting the engine manually.
Safety Goggles (not shown) — Always use the enclosed
goggles or other eye protection when running your
pressure washer.
Spray Gun — Controls the application of water onto
cleaning surface with trigger device. Includes safety latch.
Spray Nozzles — Chemical injection, 0°, 15°, 25°, and 40°:
for various high pressure cleaning applications.
Throttle Lever—Sets engine in starting mode for recoil
starter and stops a running engine.
Water Inlet — Connect garden hose here.
Accessory Tray

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Generac 2,400 PSI Pressure Washer
IMPORTANT: Read entire owner’s manual before you
attempt to assemble or operate your new pressure washer.
REMOVE PRESSURE
WASHER FROM
CARTON
• Remove the parts bag packed 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
• Safety Goggles
• Handle
• Plastic Accessory Tray
• High Pressure Hose
• Spray Gun
• Nozzle Extension with Quick Connect Fitting
• Oil Bottle
• Parts Bag (which includes the following):
• Nozzle Cleaning Kit
• Owner’s Manual
• Engine Manual
• Engine Warranty Card
• Emissions Control Warranty Card
• Owner’s Registration Card
• Bag containing 5 multi–colored Quick Connect Nozzles
• O-Ring Maintenance Kit
• Handle Fastening Hardware Kit (which includes):
• Carriage Bolt
“L” Bolt
• Plastic Knobs (2)
• “J” Hook
• Chemical Hose Clip
• Self Tapping Screws (5)
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 registration card.
• Attach accessory tray to handle, then attach handle to
main unit.
• Add oil to engine crankcase.
• Add fuel to fuel tank.
• Connect high pressure hose to spray gun and pump.
• Connect water supply to pump.
• Attach nozzle extension to spray gun.
• Select/attach quick connect nozzle to nozzle extension.
Attach Handle and Accessory Tray
NOTE: All assembly operations given in this section will
be described from the perspective of assembling the
pressure washer from the rear.
• Slide the plastic accessory tray onto the handle and align
the holes in the accessory tray with the holes on the
handle (Figure 1).
Figure 1 — Attach Accessory Tray

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Generac 2,400 PSI Pressure Washer
• Secure tray to handle with self tapping screws using a
#2 phillips screwdriver. Ensure screws are tight but not
crushing the plastic accessory tray.
• Place the handle assembly onto the handle supports
connected to the main unit. Make sure the holes in the
handle align with the holes on the handle supports
(Figure 2).
NOTE: It may be necessary to move the handle supports
from side to side in order to align the handle so it will slide
over the handle supports.
• Insert the “L” bolt through the hole on the right side of
the handle (viewing from rear of unit) and attach the
plastic knob. Tighten the knob by hand (Figure 3).
• Insert the carriage bolt through the left side hole from
the outside of the unit and attach a plastic knob from the
inside of the unit (viewing unit from the rear). Tighten by
hand (Figure 3).
• Insert the “J” hook into the second from the left slot in
the accessory tray (Figure 4).
• Pinch the chemical hose and slide it into the metal clip as
shown in Figure 5.
• Tilt the unit up by the handle and attach the metal clip to
the rib on the center underside of the accessory tray
(Figure 6). Slide the chemical hose through the metal clip
so that it is tight but not kinked.
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.
Add Gasoline
WARNING! Never fill fuel tank indoors. Never
fill fuel tank when engine is running or hot. Do Not
smoke when filling fuel tank.
Figure 3 — Secure Handle
Figure 4 — Install “J” Hook on Accessory Tray
Figure 5 — Slide Chemical Hose into Metal Clip
Figure 6 — Slide Metal Clip onto Accessory Tray Flange
Align Holes
Handle
Handle
Supports
Figure 2 — Attach Handle to Base

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Generac 2,400 PSI Pressure Washer
WARNING! Never fill fuel tank completely full.
Provide space for fuel expansion. Wipe away any fuel
spillage from engine and equipment before starting.
•Use fresh, clean unleaded automotive gasoline 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 area around fuel fill cap, remove cap.
• Slowly add gasoline to fuel tank. Use a funnel to prevent
spillage. Fill tank to “Fuel Level Mark”, as shown in
Figure 7.
• Install 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.
NOTE: Your pressure washer comes with a quick connect
that you can use to attach the high pressure hose to either
the pump or spray gun.
• Uncoil the high pressure hose and attach the female quick
connect to one end of the hose. Attach the male quick
connect to the high pressure fitting on the pump (Figure 8).
• Attach the high pressure hose to the high pressure outlet
on the pump (Figure 9). Pull down on the collar of the
quick connect, slide fitting into the pump and let go of
collar. Pull on hose to be sure of a tight connection.
NOTE: The quick connect is shown connecting the high
pressure hose to the pump. If you choose to use the quick
connect for the gun to hose connection, follow the same
directions to attach quick connect from gun to hose.
• Attach the other end of the hose to the base of the
spray gun (Figure 10). Tighten by hand.
• Before you connect your garden hose to the water inlet,
inspect the inlet screen (Figure 11). Clean the screen if it
contains debris, replace it if it is damaged. DO NOT
RUN THE PRESSURE WASHER IF THE SCREEN IS
DAMAGED. NEVER SIPHON INLET WATER.
• Run water through the garden hose for 30 seconds to
clean out any debris. Turn off water.
• Connect the garden hose to the water inlet. Tighten by
hand (Figure 11).
Connect high
pressure hose
here
Figure 10 — Connect High Pressure Hose to Spray Gun
Figure 9 — Connect High Pressure Hose to Pump
Figure 11 — Connect Garden Hose to Water Inlet
Inspect inlet
screen, Do
Not use if
damaged, clean
if dirty.
Figure 7 — Add Gasoline to Fuel Tank
Figure 8 — Attach Quick Connect

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Generac 2,400 PSI Pressure Washer
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
caution will not be covered by the warranty.
• Turn ON the water and squeeze the trigger on the spray
gun 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 unit’s assembly to confirm you have performed
all of the following:
• Make sure the handle is in place and secure.
• Check that oil has been added to the proper level in the
engine crankcase.
• Add the proper gasoline to fuel tank.
• Check for properly attached hose connections.
• Check to make sure that there are no kinks, cuts, or
damage to the high pressure hose.
• Provide a proper water supply at an adequate flow.
• Be sure to read “Safety Rules” and “How To Use Your
Pressure Washer” before using the 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.
To Start Your Pressure Washer
To start your pressure washer for the first time, follow
these instructions step-by-step. This starting information
also applies if 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 capable of supplying water at a flow
rate greater than 2.8 gallons per minute.
• Check that the high pressure hose is connected to the
spray gun and to the pump. See “Preparing Pressure
Washer for Use” for illustrations.
• Make sure unit is in a level position.
• Connect the garden hose to the water inlet on the
pressure washer pump. 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 gun until you have a steady
stream of water. This purges the pump of air and
impurities.
• Attach the nozzle extension to the spray gun (Figure 12).
Tighten by hand.
• Choose the nozzle you want to use and insert it into the
nozzle extension. See “How to Use the Nozzles” on
page 10.
• Engage the safety latch to the spray gun trigger
(Figure 13).
• Pull the Choke rod to the CLOSED position (all the way
out, Figure 14).
NOTE: For a warm engine, be sure the choke is in the
OPEN position (no choke).
• Move the Throttle Control lever to the “On” position
(Figure 15).
Safety Latch
Figure 13 — Spray Gun with Safety Latch Engaged
Figure 12 — Connect Nozzle Extension to Spray Gun
Choke Rod
Open
Closed
Figure 14 — Choke Positions

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Generac 2,400 PSI Pressure Washer
• 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 engine fails to start repeat above steps or refer to
the engine owner’s manual.
• If the choke was pulled to the CLOSED position to start
the engine, slowly push it to the OPEN position as the
engine runs smoother.
NOTE: If the recoil starter is hard to pull, it may be
necessary to squeeze the gun trigger to relieve internal
pump pressure.
How to Stop Pressure Washer
• Move Throttle Control lever to the ‘Stop’ 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 Accessory Tray
The unit is equipped with an accessory tray with places to
store your nozzle extension and quick connect nozzles, and
slots to hold the cleaning solution bottle and the detergent
siphoning filter. There are also two hooks at the ends of
the handle to hold your spray gun and high pressure hose.
NOTE: The extra holes in the tray are for storing a brush
and a turbo wand. The brush and turbo wand are NOT
included with your pressure washer. You can buy these
items as optional accessories.
• Place the nozzle extension through the hole on the
accessory tray, as shown in Figure 16.
• Hang your chemical solution bottle on the “J” hook and
place the detergent siphoning filter in the last slot on the
left (Figure 16).
• Place the spray gun on the hook attached to the
accessory tray on the right side of the unit (Figure 16).
• Hang the high pressure hose on the hook attached to
the accessory tray on the left side of the unit as shown
on page 4.
Figure 16 — Accessory Tray
Throttle Lever
On
Stop
Figure 15 — Throttle Lever Positions

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Generac 2,400 PSI Pressure Washer
How to Use the Nozzles
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 17).
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 handles storage 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.
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.
• Hang the detergent solution on the “J” hook attached to
the accessory tray, as shown in Figure 18.
Figure 18 — Insert Filter into Container
White
40°
Green
25°
Black Yellow
15°
Red
0°
Low Pressure
Use to
apply
chemical
High Pressure
Figure 17 — Nozzles

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Generac 2,400 PSI Pressure Washer
• Place the small filter end of the detergent siphoning 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.
• Allow the detergent to soak in between 3–5 minutes
before washing and rinsing. Reapply as needed to prevent
surface from drying. Do Not allow the detergent to dry
on (prevents streaking).
IMPORTANT: You must flush the chemical injection
system after each use by placing the filter into a bucket of
clean water, then run the pressure washer in low pressure
for 1-2 minutes.
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 10.
• Keep the spray gun a safe distance from the area you
plan to spray.
• 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 rinsing.
• 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
(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. At this temperature, the system
engages and cools the pump by discharging the warm
water onto the ground. This system prevents internal
damage to the pump.
SPECIFICATIONS
Rated Pressure . . . . . 2,400 psi
Flow Rate . . . . . . . . . . 2.5 gallons per minute (gpm)
Detergent . . . . . . . . . . Use detergent approved for
pressure washers
Water Supply Temp . Not to Exceed 100°F
Automatic Cool . . . . Will cycle when water
Down System . . . . . . . reaches 140°-145°F
Shipping Weight . . . . 83 lbs.

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Generac 2,400 PSI Pressure Washer
GENERAL MAINTENANCE
RECOMMENDATIONS
The 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. Check the
spray gun and adjustable nozzle extension assembly for wear.
• All maintenance in this manual and the engine owner’s
manual should be made at least once each season.
• Once a year you should clean or replace the spark plug,
clean or replace the air filter. A new spark plug and clean
air filter assure proper fuel-air mixture and help your
engine run better and last longer. Please refer to your
engine owner’s manual for more details.
BEFORE EACH USE
• Check engine oil level.
• Check water inlet screen for damage.
• Check in-line filter for damage.
• Check high pressure hose for leaks.
• Check detergent siphoning tube and filter for damage.
• Check spray gun and nozzle extension assembly for leaks.
• Rinse out garden hose to flush out debris before
connecting to pressure washer.
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 Detergent Siphoning Tube
Examine the filter on the detergent tube 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.
Cleaning Detergent Siphoning Tube
If you used the detergent siphoning tube, you must flush it
with clean water before stopping the engine.
• Place the chemical injection siphon/filter in a bucket full
of clean water.
• Attach the black low pressure nozzle.
• 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
shut down, squeeze the trigger on the spray gun to
relieve the pressure in the hose.
Check Gun and Nozzle Extension
Examine the hose connection to the spray 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 19 and service the in-line filter if it
becomes clogged, as follows:
Nozzle Extension
Filter Screen
O-ring
Figure 19 — Clean In-Line Filter

13
Generac 2,400 PSI Pressure Washer
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.
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.
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.
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 20).
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 20).
5. Using a garden hose, remove additional debris by back
flushing water through the nozzle extension
(Figure 21). Back flush between 30 to 60 seconds.
6. Reinstall the nozzle and in-line filter into the nozzle
extension. Do Not overtighten the nozzle with the
allen wrench.
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.
Use wire here
to remove
debris.
Figure 20 — Nozzle Maintenance
Figure 21 — Backflushing the Nozzle Extension

14
Generac 2,400 PSI Pressure Washer
O–Ring Maintenance
Through the normal operation of your pressure washer,
o–rings, which keep the connections of the hoses and spray
gun tight and leak–free, 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 THE UNIT
FOR STORAGE
Water should not remain in the unit for long periods of
time. Sediments or 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 detergent siphoning tube by placing the filter into
a pail of clean water while running pressure washer in
low pressure mode. Flush for one to two minutes.
2. Shut off the engine and let it cool, then remove high
pressure and garden hoses. Disconnect spark plug wire
from spark plug.
3. Empty the pump of liquids by pulling the engine recoil
handle about 6 times. This should remove most of the
liquid in the pump.
4. Use Generac brand pump saver to prevent corrosion
build up and freezing of pump.
5. Store unit in a clean, dry area.
Protecting the Pump
To protect the pump from damage caused by mineral
deposits or freezing, use the Generac PumpSaver to treat
pump. This prevents freeze damage and lubricates pistons
and seals.
NOTE: Generac PumpSaver, model number 01559, is
available as an optional accessory. It is not included with the
pressure washer.
CAUTION! You must protect your unit from freezing
temperatures. Failure to do so will permanently damage
your pump and render your unit inoperable. Freeze damage
is not covered under warranty.
CAUTION! Read and follow all cautions and
warnings on the PumpSaver can label. Always wear
eye protection when using PumpSaver.
To use PumpSaver, make sure the pressure washer is
turned off and disconnected from supply water. Read and
follow all instructions and warnings given on the PumpSaver
container.
NOTE: PumpSaver will drip from pump after treatment
and will stain wood and concrete.
NOTE: If PumpSaver is not available, draw RV antifreeze
(non-alcohol) into the pump by pouring the solution into a
3-foot section of garden hose connected to inlet adapter
and pulling recoil handle twice.
STORING THE ENGINE
See the engine owner’s manual for instructions on how to
properly prepare the engine for storage.

15
Generac 2,400 PSI Pressure Washer
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 100°F.
7. High pressure hose is blocked or
leaks.
8. Gun leaks.
9. Nozzle is obstructed.
10. Pump is faulty.
1. Replace nozzle 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. Detergent siphoning tube is not
submerged.
2. Chemical filter is clogged.
3. Dirty in-line filter.
4. Low pressure nozzle installed.
1. Insert detergent siphoning tube into
detergent.
2. Clean or replace filter/detergent
siphoning tube.
3. See “Check In-Line Filter” on page 12.
4. Replace nozzle with high pressure
nozzle.
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 Honda
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.

16
Generac 2,400 PSI Pressure Washer
EXPLODED VIEW — UNIT

17
Generac 2,400 PSI Pressure Washer
PARTS LIST — UNIT
Item Part # Qty. Description
1 190153GS 1 DECALS/BILLBOARD, 1675-0
2 A187602GS 1 HANDLE, Powder Coat Red
3 A190156GS 1 BASE
4 30809GS 5 GROMMET, Rubber
5 27007GS 2 MOUNT, Donut Type Vibration
6 71693GS 2 WASHER, Flat
7 188194GS 2 BLIND RIVET
8 B4966GS 2 ASSEMBLY, 10" Tire & Wheel
9 190147GS 2 PUSHNUT, 5/8" Dia
10 190668GS 1 KIT, Handle Fasteners
11 187918GS 1 DECAL, Quick Reference
12 187916GS 1 DECAL, Start Instructions
13 190537GS 1 CAP, Black Vinyl
14 187915GS 1 DECAL, Warning/Danger
15 190151GS 1 ASSEMBLY, Complete Pump
16 187952GS 1 DECAL, Cool Down
17 186301GS 1 KIT, Nozzle
18 23139DGS 1 KEY, 3/16" sq. x 1.50
19 92479GS 4 LOCKWASHER, M8, Ribbed
20 23707GS 4 SHCS, 5/16"-24 x 1"
21 67989GS 8 NUT, M8 Flange Serrated
22 21217GS 4 MOUNT, Rubber Shock
23 95518GS 1 QUICK CONNECT, Wand/Acc
24 95519GS 1 QUICK CONNECT, Wand End
25 190249GS 1 HOSE, 25' x 1/4"
26 21783GS 1 VALVE, Thermal Relief
27 B5830GS 1 KIT, O-Ring Maintenance
28 87815GS 1 GOGGLES, Safety
29 188287GS 1 KIT, Nozzle Cleaning
30 97837GS 1 O-RING, Hi Pressure
31 B4224GS 1 SCREEN, Gun Inlet
32 B3858GS 1 EXTENTION, M22
33 190049GS 1 GUN, High Pressure
34 BB3061BGS 1 OIL
35 190164GS 1 MANUAL, Owners
36 B3294GS 1 MANUAL, Engine
900 NSP 1 ENGINE

18
Generac 2,400 PSI Pressure Washer
EXPLODED VIEW — PUMP

19
Generac 2,400 PSI Pressure Washer
PARTS LIST — PUMP
Item Part # Qty. Description
1 190568GS 1 SEAL, 40 x 52 x 7
3 190569GS 1 RETAINER RING
9 190671GS 1 ENGINE ADAPTER &
BEARING
16 190572GS 1 O-RING, 80.60 x 2.62
19 190571GS 1 CAP, Oil
23 190573GS 1 PISTON HOUSING
28 190673GS 1 MANIFOLD
29 190575GS 1 O-RING, 4x2
30 190576GS 1 SCREW, Venturi
34 190577GS 1 CONNECTION, Chemical
Inlet
45 190578GS 1 PIN
46 190579GS 1 VALVE, Seat Plate Brass
47 190580GS 1 VALVE, Seat Stainless
62 190581GS 1 CAP, 1/8
68 190582GS 1 BALL, 7mm Stainless Steal
69 190584GS 1 O-RING, 9.25 x 1.78
76 21783GS 1 THERMAL RELIEF
77 190585GS 1 OIL BOTTLE
A 190672GS 0 KIT, WOBBLE PLATE
BEARING
10 . . . . . . 2 FLAT BEARING DISC, 45 x 65 - 1
11 . . . . . . 3 FLAT BEARING DISC, 40 x 60-1
12 . . . . . . 1 ROLLER BEARING, 40 x 60
13 . . . . . . 1 WOBBLE PLATE, 3/4" x 9.0
14 . . . . . . 1 CAP
15 . . . . . . 1 BEARING DISC, 60 x 30
16 . . . . . . 1 O-RING, 80.60 x 2.62
17 . . . . . . 1 ROLLER BEARING, 45 x 65
70 . . . . . . 3 SCREW, M6 x 30
77 . . . . . . 1 OIL BOTTLE
B 190670GS 0 KIT, WATER INLET
8 . . . . . . 1 WASHER, 17.5 x 23 x 1,5
20 . . . . . . 1 GARDEN HOSE w/ FINGER GRIP
21 . . . . . . 1 NIPPLE, Garden Hose
22 . . . . . . 1 WASHER w/ FILTER 24 x 15 x 3.5
D 190590GS 0 KIT, PISTON
16 . . . . . . 1 O-RING, 80.60 x 2.62
70 . . . . . . 3 SCREW, M6 x 30
71 . . . . . . 3 SPRING
72 . . . . . . 3 PISTON, 14 x 63, Stainless Steel
73 . . . . . . 3 SPRING PLATE
77 . . . . . . 1 OIL BOTTLE
E 190591GS 0 KIT, CHECK VALVES
24 . . . . . . 3 O-RING, 12 x 2
25 . . . . . . 3 O-RING, 12.42 x 1.78
26 . . . . . . 6 ASSY., Check Valve
27 . . . . . . 3 O-RING, 15 x 2
44 . . . . . . 4 SCREW, M5 x 30
74 . . . . . . 5 SCREW, M6 x 35
Item Part # Qty. Description
F 190592GS 0 KIT, INLET CHECK
37 . . . . . . 1 VALVE, Non-Return
38 . . . . . . 1 SPRING, 9,2 x 10 x 0,8
39 . . . . . . 1 INJECTION NOZZLE, M6 Flat
40 . . . . . . 1 O-RING, 8 x 2
41 . . . . . . 1 O-RING, 9.25 x 1.78
42 . . . . . . 1 INJECTION NIPPLE
43 . . . . . . 1 O-RING, 5 x 2
G 190593GS 0 KIT, CHEMICAL INJECTION
31 . . . . . . 1 SPRING, 3.5
32 . . . . . . 1 BALL, 3/16"
33 . . . . . . 1 O-RING, 3.69 x 1.78
34 . . . . . . 1 CONNECTION, Chemical Inlet
35 . . . . . . 1 O-RING, 7.66 x 1.78
36 . . . . . . 1 FIXING SCREW
H 190594GS 0 KIT, UNLOADER
48 . . . . . . 1 BACK RING, 9 x 12 x 1.5
49 . . . . . . 1 O-RING, 14 x 1.78
50 . . . . . . 1 VALVE, By Pass, Brass
51 . . . . . . 1 PISTON
52 . . . . . . 1 SPRING, Easy Start
53 . . . . . . 1 PISTON, Body
54 . . . . . . 1 RING, Back, 6 x 9
55 . . . . . . 1 SPACER
56 . . . . . . 1 SPRING, Regulation Press
57 . . . . . . 1 NUT, Regulation Press
58 . . . . . . 1 NUT
59 . . . . . . 1 O-RING, 12.42 x 1.78
60 . . . . . . 1 O-RING, 6.07 x 1.78
61 . . . . . . 1 O-RING, 8.73 x 1.78
J 189971GS 0 KIT, CHEMICAL HOSE
78 . . . . . . 1 O-RING, 6.75 x 1.78
79 . . . . . . 1 TUBE, Inlet Support
80 . . . . . . 1 TUBE, Chemical
81 . . . . . . 1 FILTER
K 190595GS 0 KIT, SEAL SET
18 . . . . . . 3 O-RING, 11.11 x 1.78
63 . . . . . . 3 RING, 14 x 22 x 5
64 . . . . . . 3 SEAL
65 . . . . . . 3 O-RING, 23.52 x 1.78
66 . . . . . . 3 WASHER, 19 x 13 x 1.5
67 . . . . . . 3 SEAL, H.P
61 . . . . . . 1 O-RING, 8.73 x 1.78
L 190596GS 0 KIT, HEAD BRASS
74 . . . . . . 5 SCREW, M6 x 35
75 . . . . . . 1 HEAD, Pump
M 190669GS 0 KIT, BREATHER TUBE
76 . . . . . . 1 VENT VALVE, Oil Cap
77 . . . . . . 1 EXTENSION, Oil
78 . . . . . . 1 WASHER, 19 x 13 x 1.5
NOTE: Item letters A - M are service kits and include all
parts shown within the box.

Lavadora de Presión 2,400 PSI de Generac
20
TABLA DE CONTENIDOS
Reglas De Seguridad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-21
Conozca Su Generador . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Ensamblaje. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-26
Funcionamiento . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-29
Especificaciones Del Producto . . . . . . . . . . . . . . . . . . . . . . . . . 29
Mantenimiento. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-32
Almacenamiento. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Notas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Diagnosticos De Averías. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Piezas De Recambio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-19
Garantia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
DESCRIPCIÓN DEL EQUIPO
Lea este manual de manera cuidadosa y familiarícese con
su generador. Conozca sus usos, sus limitaciones y
cualquier peligro relacionado con el mismo.
Se ha hecho cada esfuerzo posible para asegurarse que la
información que aparece en este manual es exacta y se encuentra
actualizada. Sin embargo, Snapper se reserva el derecho a cambiar,
alterar o de otra manera mejorar, el producto y este documento
en cualquier momento, sin previo aviso.
INSTRUCCIONES DE SEGURIDAD
El símbolo de alerta de seguridad ( ) es usado con una palabra
(PELIGRO, ADVERTENCIA, PRECAUCIÓN), un mensaje por
escrito o una ilustración, para alertarlo acerca de cualquier
situación de peligro que pueda existir. PELIGRO indica un riesgo
el cual, si no se evita, causará la muerte o una herida grave.
ADVERTENCIA indica un riesgo el cual, si no se evita, puede
causar la muerte o una herida grave. PRECAUCIÓN indica un
riesgo, el cual, si no se evita, puede causar heridas menores o
moderadas. PRECAUCIÓN, cuando se usa sin el símbolo de
alerta, indica una situación que podría resultar en el daño del
equipo. Siga los mensajes de seguridad para evitar o reducir los
riesgos de heridas e inclusive la muerte.
El escape del motor de este producto contiene
elementos químicos reconocidos en el Estado de
California por producir cáncer, defectos de nacimiento u
otros daños de tipo reproductivo.
ADVERTENCIA
En el estado de California es obligatorio, según la ley, el uso de
apagachispas (Sección 4442 del Código de Recursos Públicos de
California). Otros estados pueden tener leyes similares. Las leyes
federales se aplican en tierras federales. Si equipa el silenciador
con un apagachispas, este deberá ser mantenido en buenas
condiciones de trabajo.
CUANDO AÑADA COMBUSTIBLE
• Apague el generador (posición OFF) y déjelo enfriar al menos por
2 minutos antes de remover la tapa de la gasolina.
• Llene el tanque al aire libre.
• No llene demasiado el tanque. Permita al menos espacio para la
expansión del combustible.
• Mantenga la gasolina alejada de chispas, llamas abiertas, pilotos, calor
y otras fuentes de ignición.
• No encienda un cigarrillo o fume.
CUANDO OPERE EL EQUIPO
• No incline el motor o el equipo, de tal manera que la gasolina se
pueda derramar.
• No rocíe líquidos inflamables.
CUANDO TRANSPORTE O REPARE EL EQUIPO
• Transporte o repare el equipo con el tanque de combustible vacío, o
con la válvula para apagar el combustible, apagada (posición OFF).
CUANDO ALMACENE O GUARDE EL EQUIPO CON
COMBUSTIBLE EN EL TANQUE
• Almacene alejado de calderas, estufas, calentadores de agua,
secadoras de ropa u otros aparatos electrodomésticos que posean
pilotos u otras fuentes de ignición, porque ellos pueden encender los
vapores de la gasolina.
La gasolina y sus vapores son extremadamente
inflamables y explosivos.
El fuego o una explosión pueden causar quemaduras
severas e inclusive la muerte.
ADVERTENCIA
• Mantenga el chorro del agua alejado de alambrados eléctricos, de lo
contrario podrían ocurrir descargas eléctricas fatales.
El contacto del rocío con alambrado eléctrico puede
tener como resultado electrocution.
ADVERTENCIA
• Nunca apunte la pistola a la gente, animales o plantas.
• No permita en ningún momento que NIÑOS operen la máquina
lavadora a presión.
• Nunca repare la manguera de alta presión. Remplacela.
La corriente de agua de alta presión que produce
este equipo pueden perforar la piel y sus tejidos
profundos, ocasionando lesiones serias y posible
amputación.
ADVERTENCIA