Generac Portable Products 1674-0 User manual

Pressure Washer Owner’s Manual
Questions? Help is just a moment away!
Call: Generac Pressure Washer Helpline - 1-800-270-1408 M-F 8-5 CT
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Model No. 1674-0 (2,300 PSI Pressure Washer) Manual No. 190134GS Revision 1 (01/07/2002)
2300PSI

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Generac 2,300 PSI Pressure Washer
TABLE OF CONTENTS
Safety Rules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Know Your Pressure Washer . . . . . . . . . . . . . . . . . . . . . . 4
Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
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.
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
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

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Generac 2,300 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
ordorless, 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
• 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 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
• 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 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

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Generac 2,300 PSI Pressure Washer
KNOWYOUR PRESSURE WASHER
Read this owner’s manual and safety rules before operating your pressure washer.
Compare the illustrations with your pressure washer to familiarize yourself with the locations of various controls and
adjustments. Save this manual for future reference.
Accessory Tray — Provides convienant storage for
standard and optional accessories, such as brushes, turbo
wands, ect.
Adjustable Nozzle — Always attached to nozzle
extension.Adjustable nozzle allows you to adjust spray
pressure and spray pattern.
Air Filter — Dry type filter element limits the amount of
dirt and dust that gets in the engine.
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 Lever — Prepares a cold engine for starting.
High Pressure Hose — Connect one end to water
pump and the other end to spray gun.
High Pressure Outlet — Connection for high pressure
hose.
Oil Fill/Dipstick — Check and fill with oil here.
Pump — Develops high pressure.
Recoil Starter — Used for starting the engine manually.
Spray Gun — Controls the application of water onto
cleaning surface with trigger device. Includes safety latch.
Throttle Control Lever — Sets engine in starting mode
for recoil starter and stops a running engine.
Water Inlet — Connection for garden hose.
High Pressure Hose
Adjustable Nozzle
Throttle Control Lever
High Pressure Outlet
Pump equipped with Automatic
Cool Down System
Spray Gun
Water Inlet
Oil Fill/Dipstick
Recoil Starter
Choke Lever
Air Filter
Chemical Injection
Siphon/Filter
Accessory Tray

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Generac 2,300 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, accessories, and insert 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
• Goggles
• Handle
• Plastic Accessory Tray
• High Pressure Hose
• Spray Gun
• Nozzle Extension
• Oil Bottle
• Parts Bag (which includes the following):
• Nozzle Cleaning Kit
• Owner’s Manual
• Engine Manual
• Owner’s Registration Card
• O-Ring Maintenance Kit
• Handle Fastening Hardware Kit (which includes):
• Carriage Bolts (2)
• 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 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).
• Secure tray to handle with self tapping screws using a
#2 phillips screwdriver. Ensure screws are tight but not
crushing the plastic accessory tray.
Figure 1 — Attach Accessory Tray

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Generac 2,300 PSI Pressure Washer
• Place the handle onto the handle supports already
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 carriage bolt through the holes from the
outside of the unit and attach a plastic knob from the
inside of the unit.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 that comes out of a hole in the
unit’s base 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 left 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.
WARNING! Never fill fuel tank completely full.
Provide space for fuel expansion.Wipe away any fuel
spillage from engine and equipment before starting.
Figure 3 — Secure Handle
Figure 4 — Place “J” Hook on Accessory Tray
Figure 5 — Slide Chemical Hose into Metal Clip
Figure 6 — Slide Metal Clip onto Accessory Tray
Align Holes
Handle
Handle
Supports
Figure 2 — Attach Handle to Base

7
Generac 2,300 PSI High Pressure Washer
•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 “UNLEADED” regular gasoline to fuel tank.
Use a funnel to prevent spillage. Slowly fill tank to about
1/2” below the bottom of the filler neck (Figure 7).
• Install fuel cap and wipe up any spilled gasoline.
Connect Hose and Water Supply to
Pump
IMPORTANT: You must attach all hoses before you start
the engine. Starting engine without all hoses connected and
water supplied will damage the pump.
• Attach one end of the high pressure hose to the high
pressure outlet on the pump (Figure 8).Tighten by hand.
• Attach the other end of the hose to the base of the
spray gun (Figure 9).Tighten by hand.
• Before you connect your garden hose to the water inlet,
inspect the inlet screen (Figure 10). Clean the screen if it
contains debris, replace it if it is damaged. DO NOT RUN
THE PRESSURE WASHER IF THE SCREEN IS DAMAGED.
• Run water through the garden hose for 30 seconds to
clean out any debris.Turn off water.
IMPORTANT: Do Not siphon standing water for the
water supply. Use ONLY cold water (less than 100°F).
• Connect the garden hose to the water inlet.Tighten by
hand (Figure 10).
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 tightened 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.
Connect High
Pressure Hose
Here
Figure 7 — Add Gasoline to Fuel Tank
Figure 9 — Connect High Pressure Hose to Spray Gun
Figure 8 — Connect High Pressure Hose to Water Outlet
Inspect inlet
screen. Do Not
use if damaged;
clean if dirty.
Figure 10 — Connect Garden Hose to Water Inlet
1/2” Air
Space
Tank
Fuel

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Generac 2,300 PSI Pressure Washer
HOW TO USEYOUR
PRESSURE WASHER
If you have any problems operating your pressure washer,
please call the pressure washer helpline at
1-800-270-1408.
To StartYour 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 2.2 gallons per minute.
• Check that the high pressure hose is tightly 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 trigger on gun until you have a steady stream of
water.This purges the pump of air and impurities.
• Attach nozzle extension to spray gun (Figure 11).Tighten
by hand.
• Position the nozzle in the low pressure mode (slide
nozzle forward) and squeeze the trigger on the spray gun
to relieve pressure caused by turning ON the water.
Water will flow out of the gun in a thin stream. Continue
to hold trigger until there is a steady stream of water
and no air remains in the system. Release the trigger.
• Engage the safety latch to the spray gun trigger
(Figure 12).
• Move the throttle lever to “Fast” position, shown here
as a rabbit (Figure 13).
• Move the choke lever to the “Choke” position
(Figure 13).
NOTE: For a warm engine, be sure the choke lever is in
the “Run” position.
• Place your left foot on the lower frame and grasp the
handle as shown (Figure 14).Your unit may appear slightly
different from that shown here.
• Pull the starter grip handle lightly with your right hand
until you feel some resistance, then pull briskly.
Throttle Lever Choke Lever
Figure 13 — Throttle and Choke Controls
Figure 11 — Connect Nozzle Extension to Spray Gun
Figure 14 — Recommended Engine Starting Posture
Figure 12 — Spray Gun with Safety Latch Engaged
Safety Latch

• Return the starter grip handle slowly. Do Not let rope
“snap back” against starter.
• When engine starts, slowly move choke lever to the
“Run” position. If engine falters, move choke lever to the
“Choke” position, then to the “Run” position.
• If engine fails to start after six pulls, move choke lever to
the “Run” position. If engine fires, but does not continue
to run, move choke lever to the “Choke” position, then
to the “Run” position.
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 StopYour Pressure Washer
• Move throttle lever on engine to “Stop” position.
•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.
How to Use Accessory Tray
The unit is equipped with an accessory tray with places to
store your nozzle extension, and slots to hold the cleaning
solution bottle and the detergent siphoning filter.There are
also two hooks at the ends of the accessory tray 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 15.
• Hang your chemical solution bottle on the “J” hook and
place the detergent siphoning filter in the last slot on the
left (Figure 15).
• Hang the high pressure hose on the hook on the right
side of the accessory tray (Figure 15).
• Place the spray gun on the hook on the left side of the
accessory tray as shown on page 4.
How to Use the Adjustable Nozzle
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 other cleaning chemicals.
CAUTION! Never adjust spray pattern when
spraying. Never put hands in front of nozzle to
adjust spray pattern.
The adjustable nozzle affixed to the nozzle extension
permits you to adjust the spray pattern and the spray
pressure, as follows:
9
Generac 2,300 PSI Pressure Washer
Figure 15 — Accessory Tray

10
Generac 2,300 PSI Pressure Washer
• Slide the nozzle forward to adjust the spray to low
pressure mode (Figure 16). Slide the nozzle backward to
achieve high pressure.
• Point the nozzle down towards a firm surface and press
the trigger to test the pattern (Figure 17).
• Twisting the nozzle adjusts the spray pattern from a
narrow pattern to a fan pattern (Figure 18).
• For most effective cleaning, keep the spray nozzle
between 8 to 24 inches away from cleaning surface.
• If you get the spray nozzle too close, especially using high
pressure mode, you may damage the surface being
cleaned.
•Do Not get closer than 8 inches when cleaning tires.
Applying Detergent with the
Adjustable Nozzle
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 adjustable nozzles.
• Prepare detergent solution as required by the
manufacturer.
• Hang the detergent solution on the “J” hook attached to
the accessory tray, as shown in Figure 19.
• Place the small filter end of the detergent siphoning tube
into the detergent container.
CAUTION! Keep the detergent siphoning tube from
coming in contact with the hot muffler.
• Slide the adjustable nozzle forward to low pressure
mode. Detergent cannot be applied with the nozzle in
high pressure position.
Figure 19 — Insert Filter into Container
Twist nozzle
counterclockwise for fan
spray pattern.
Twist nozzle clockwise
for narrow spray
pattern.
Figure 18 - Adjusting Spray Pattern
Figure 17 — Test the Spray Pattern
Slide nozzle backward
for high pressure mode. Slide nozzle forward for
low pressure mode and
detergent application.
Figure 16 - Adjusting Spray Pressure

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Generac 2,300 PSI Pressure Washer
• 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. 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” for 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. 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.The high pressure spray
could also cause you to fall if you are too close to
the cleaning surface.
For Rinsing:
• Slide the nozzle backward to high pressure and press the
trigger. It will take a few seconds for the detergent to
clear.
NOTE: You can also stop detergent from flowing by simply
removing detergent siphon tube from bottle.
• Keep the spray gun a safe distance from the area you
plan to spray.
• Apply a high pressure spray to a small area, then check
the surface for damage. If no damage is found, 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.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.
SPECIFICATIONS
Rated Pressure . . . . . 2,300 psi
Flow Rate . . . . . . . . . . 2.0 gallons per minute (gpm)
Detergent . . . . . . . . . . Use detergent approved for
pressure washers
Water SupplyTemp . Not to exceed 100°F
Automatic Cool . . . . Will cycle when water
Down System . . . . . . . reaches 140°-145°F
Shipping Weight . . . . 77 lbs.

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Generac 2,300 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
pressure washer as instructed in this manual.
• Some adjustments will need to be made periodically to
properly maintain your 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 adjustable 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 SiphoningTube
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 SiphoningTube
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.
• Slide the adjustable nozzle extension forward to the low
pressure mode.
• 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 Adjustable 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 20 and service the in-line filter if it
becomes clogged, as follows:
Nozzle Extension
Filter Screen
O-ring
Figure 20 — Clean In-Line Filter

13
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 attach 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. Detach the nozzle extension from the spray gun.Twist
the nozzle clockwise to the stream position. Using the
supplied 2mm (5/64) allen wrench, remove the nozzle
from the end of the nozzle extension (Figure 21).
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 21).
5. Using a garden hose, remove additional debris by back
flushing water through the nozzle extension
(Figure 22). Back flush between 30 to 60 seconds.Turn
the adjustable nozzle extension to stream spray and
move the nozzle from low to high while flushing.
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.
Generac 2,300 PSI Pressure Washer
Nozzle
Figure 21 — Removing and Cleaning Nozzle
Figure 22 — Backflushing the Nozzle

14
Generac 2,300 PSI Pressure Washer
9. Test the pressure washer by operating with nozzle in
the high and in the low positions.
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 (adjustable nozzle in the forward
position). 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 all pumped liquids by pulling the
recoil handle about 6 times.This should remove most
of the liquid in the pump.
4. Use Generac brand PumpSaver 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 2,300 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. Nozzle in low pressure mode.
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. Pull nozzle backward for high pressure
mode.
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. Nozzle is in high pressure mode.
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. Push nozzle forward for low pressure
mode.
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 Briggs
service facility.
Engine will not start; or
starts and runs rough.
1. Dirty air cleaner.
2. Out of gasoline.
3. Stale gasoline.
4. Spark plug wire not connected to
spark plug.
5. Bad spark plug.
6. Water in gasoline.
7. Overchoking.
8. Excessively rich fuel mixture.
9. Intake valve stuck open or closed.
10. Engine has lost compression.
1. Clean or replace air cleaner.
2. Fill fuel tank.
3. Drain gas tank; fill with fresh fuel.
4. Connect wire to spark plug.
5. Replace spark plug.
6. Drain gas tank; fill with fresh fuel.
7. Open choke fully and crank engine.
8. Contact Briggs service facility.
9. Contact Briggs service facility.
10. Contact Briggs service facility.
Engine shuts down during
operation.
Out of gasoline.
Fill fuel tank.
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 2,300 PSI Pressure Washer
EXPLODED VIEW — UNIT

17
Generac 2,300 PSI Pressure Washer
PARTS LIST — UNIT
Item Part # Qty. Description
1 NSP 1 ENGINE
2 187878GS 1 HANDLE, Lift
3 187915GS 1 DECAL,Warning/Decal
4 187916GS 1 DECAL, Start Instructions
5 23139GS 1 KEY
6 190143GS 1 DECALS/BILLBOARD
7 B2516GS 1 CAP,Vinyl, Black
8 187952GS 1 DECAL, Cool Down
9 30809GS 1 GROMMET, Chem Hose
10 49808GS 2 WASHER, M12 Flat
11 B2142GS 2 TIRE, 2" X 9" Black Mag
12 190146GS 2 PUSHNUT, 1/2"
13 A187619GS 1 BASE,VSPW
14 A187602GS 1 HANDLE, PW
15 187918GS 1 DECAL, Quick Reference
16 27007GS 2 MOUNT, Rubber Foot
17 71693GS 2 WASHER, Flat
18 188194GS 2 RIVET, Blind
19 190132GS 1 GUN, High Pressure
20 87815GS 1 GOGGLES, Safety
21 BB3061BGS 1 OIL, 20oz
22 187623GS 1 KIT, Handle Hardware
23 190134GS 1 MANUAL, Owners
24 B3356GS 1 MANUAL, B & S Engine
25 188287GS 1 KIT, Nozzle Cleaning
26 B4224GS 1 SCREEN, Inlet
27 97837GS 1 O-RING, Hi - Pressure
28 B5830GS 1 KIT, O-Ring Maintenance
29 B3335GGS 1 WAND,Adjustable Nozzle
30 97566GS 1 HANG TAG, Nozzle
31 190605GS 1 NOZZLE, .95 Replcmnt
32 B5642GS 1 HOSE, 1/4" X 25'
33 21783GS 1 VALVE,Thermal Relief
34 48750GS 2 SHCS, M8 x 50mm
35 A2013GS 1 SHCS, M8 x 70mm
36 189970GS 1 PUMP,Assembly (see pages 18-19)
37 52858GS 3 NUT, M8 - 1.25 Lock

18
Generac 2,300 PSI Pressure Washer
EXPLODED VIEW — PUMP

19
Generac 2,300 PSI Pressure Washer
PARTS LIST — PUMP
Item Part # Qty. Description
1 190623GS 1 SEAL, 35 x 50 x 7
2 190624GS 1 SNAP RING, 35 x 1.5
3 190569GS 1 RETAINING RING
9 190625GS 1 ENGINE ADAPTER &
BEARING
16 190572GS 1 O-RING, 80.60 x 2.62
19 190571GS 1 CAP, Oil
23 190626GS 1 CARTER
28 190627GS 1 MANIFOLD
29 190575GS 1 O-RING, 4 X 2
30 190576GS 1 SCREW
34 190577GS 1 CONNECTION, Chemical Inlet
45 190578GS 1 PIN
46 190629GS 1 VALVE, Seat Plate, Plastic
47 190769GS 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 THERMO RELIEF
77 190586GS 1 OIL BOTTLE
A 190709GS 0 KIT,WOBBLE PLATE
BEARING
7 ...... 1 SPACER, Plastic
11 ...... 1 FLATBEARING DISC, 40 x 60-1
12 ...... 1 ROLLER BEARING, 40 x 60
13 ...... 1 WOBBLE PLATE, 7/8 x 8.0
14 ...... 1 CAP
15 ...... 1 FLATBEARING DISC, 60 x 30
16 ...... 1 O-RING, 80.60 x 2.62
70 ...... 3 SCREW, M6 x 30
77 ...... 1 OIL BOTTLE
78 ...... 2 FLATBEARING DISC, 45 x 65 x 1
79 ...... 1 ROLLER BEARING, 45 x 65
B 190632GS 0 KIT,WATER INLET,ALUM
4 ...... 1 O-RING, 14 x 2
8 ...... 1 WASHER, 18 x 22 x 1.5
20 ...... 1 GARDEN HOSE w/ FINGER GRIP
21 ...... 1 EXTENSION, INLET
22 ...... 1 WASHER w/ FILTER 24 x 15 x 3.5
C 190634GS 0 KIT, OUTLET,ALUM
5 ...... 1 OUTLET EXTENTION, M22-G3/8
6 ...... 1 O-RING, 13 x 2
D 190710GS 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 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.,Valve Group
Item Part # Qty. Description
27 . . . . . . 4 O-RING, 15 x 2
44 . . . . . . 4 SCREW, M5 x 30
74 . . . . . . 5 SCREW, M6 x 35
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 SCREW, Fitting
H 190594GS 0 KIT, UNLOADER STEM
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 190711GS 0 KIT, SEAL SET
18 . . . . . . 3 O-RING, 11.11 x 1.78
61 . . . . . . 1 O-RING, 8.73 x 1.78
63 . . . . . . 3 SEAL, 14 x 22 x 5
64 . . . . . . 3 BRASS BOUCHING
65 . . . . . . 3 O-RING, 23.52 x 1.78
66 . . . . . . 3 SEAL, 14 x 22 x 1.5
67 . . . . . . 3 SEAL, H.P.
74 . . . . . . 5 SCREW, M6 x 35
L 190596GS 0 KIT, HEAD BRASS
74 . . . . . . 5 SCREW, M6 x 35
75 . . . . . . 1 HEAD, Pump
NOTE: Item letters A - L are service kits and include all
parts shown within the box.

Lavadora de Presión 2,300 PSI de Generac
20
TABLA DE CONTENIDOS
Reglas De Seguridad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-21
Conozca Su Maquina Lavadora De Presion. . . . . . . . . . . . . . . . 22
Ensamblaje. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-25
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, Generac 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
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 ELTANQUE
• 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
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.
• 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