Generac Portable Products 1900PSI User manual

Owner’s Manual / Manual del Propietario / Manuel de l'Utilisateur
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Model No. 1694-1,2 (1900 PSI Pressure Washer) Manual No. 192464GS Revision 4 (12/18/2003)
1900PSI
BRIGGS & STRATTON POWER PRODUCTS GROUP, LLC
JEFFERSON,WISCONSIN, U.S.A.

Generac Portable Products 1900 PSI Pressure Washer
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TABLE OF CONTENTS
Safety Rules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Know Your Pressure Washer. . . . . . . . . . . . . . . . . . . . . . . . 5
Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10
Product Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-13
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-17
Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
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, we reserve
the right to change, alter or otherwise improve the product
and this document at any time without prior notice.
SAFETY RULES
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.
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.
Hazard Symbols and Meanings
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
Fire Explosion
Toxic Fumes
Hot Surface
Moving Parts
Electrical Shock
Slippery Surface Fall
Kickback
Flying Objects
Fluid Injection

Generac Portable Products 1900 PSI Pressure Washer
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• Keep water spray away from electric wiring or fatal electric
shock may result.
Spray contact with electrical wiring can result in
electrocution.
WARNING
• 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.
• Operate this unit on a stable surface.
• The cleaning area should have adequate slopes and drainage to
reduce the possibility of a fall due to slippery surfaces.
• Be extremely careful if you must use the pressure washer from
a ladder, scaffolding or any other relatively unstable location.
• Firmly grasp spray gun with both hands when using high
pressure spray to avoid injury if gun kicks back.
Use of pressure washer can create puddles and
slippery surfaces.
High pressure spray could cause you to fall if
you are too close to the cleaning surface.
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 fuel 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 fuel
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 FUEL 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 fuel vapors.
Fuel and its vapors are extremely flammable and
explosive.
Fire or explosion can cause severe burns or
death.
WARNING
• NEVER aim spray gun at people, animals or plants.
• DO NOT allow CHILDREN to operate pressure washer.
• NEVER repair high pressure hose. Replace it.
• Keep high pressure hose connected to pump and spray gun
while system is pressurized.
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

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• DO NOT tamper with governed speed.
• DO NOT operate pressure washer above rated pressure.
Excessively high or low operating speeds increase risk
of injury and damage to pressure washer.
CAUTION
WHEN ADJUSTING OR MAKING REPAIRS TOYOUR
PRESSURE WASHER
• Disconnect spark plug wire from spark plug and place wire
where it cannot contact spark plug.
Unintentional sparking can result in fire or
electric shock.
WARNING
• DO NOT point spray gun at glass when in jet spray mode.
• NEVER aim spray gun at plants.
High pressure spray may damage fragile items including
glass.
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
• Always wear eye protection when using this equipment or in
vicinity of where equipment is in use.
High pressure spray can cause paint chips or
other particles to become airborne.
WARNING
• DO NOT secure spray gun in open position.
• DO NOT leave spray gun unattended while machine is
running.
• NEVER use a spray gun which does not have a trigger lock or
trigger guard in place and in working order.
• Always be certain spray gun, nozzles and accessories are
correctly attached.
A pressure washer produces a high pressure spray
which increases risk of injury and damage to unit.
CAUTION
• If you have questions about intended use, ask dealer or
contact Briggs & Stratton Power Products.
• NEVER operate units with broken or missing parts, or
without protective housing or covers.
• DO NOT by–pass any safety device on this machine.
• Before starting pressure washer in cold weather, check all
parts of the equipment to be sure ice has not formed there.
• NEVER move machine by pulling on high pressure hose. Use
handle provided on unit.
• Check 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 pressure
washer.
• This equipment is designed to be used with Briggs & Stratton
Power Products authorized parts ONLY. If equipment is used
with parts that DO NOT comply with minimum specifications,
user assumes all risks and liabilities.
Improper treatment of pressure washer can damage it
and shorten its life.
CAUTION
• DO NOT touch hot surfaces.
• Stay clear of exhaust gases.
• Allow equipment to cool before touching.
Running engines produce heat and hot exhaust
gases.Temperature of muffler and nearby areas
can reach or exceed 150°F (65°C).
Fire or severe burns can occur.
WARNING

Generac Portable Products 1900 PSI Pressure Washer
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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.
Air Cleaner — 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 125°-155°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.
FuelTank — Fill tank with regular unleaded gasoline.
High Pressure Outlet — Connection for high pressure
hose.
Primer Bulb — Prepares a cold engine for starting.
Pump — Develops high water pressure.
Recoil Starter — Used for starting the engine manually.
Water Inlet — Connection for garden hose.
Air Cleaner
Primer Bulb
Fuel Tank
Water Inlet
Pump equipped with
Automatic Cool Down
System
Recoil Starter
High Pressure Outlet
Chemical Injection
Siphon/Filter

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ASSEMBLY
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 inserts included
with pressure washer.
• Slice two corners at the end of carton from top to
bottom so the panel can be folded down flat.
• Remove pressure washer from carton.
Carton Contents
Items in the carton include:
• Main Unit
• Goggles
• High Pressure Hose
• Spray Gun
• Nozzle Extension
• Oil Bottle
• Parts Bag (which includes the following):
• Maintenance Kit
• Owner’s Manual
• Engine Manual
• Owner’s Registration Card
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
To prepare your pressure washer for operation, you
will need to perform these tasks:
1. Fill out and send in registration card.
2. Add oil to engine crankcase.
3. Add fuel to fuel tank.
4. Connect high pressure hose to spray gun and pump.
5. Connect water supply to pump.
6. Attach nozzle extension to spray gun.
Add Engine Oil and Fuel
• Place pressure washer on a level surface.
• Refer to engine owner’s manual and follow oil and fuel
recommendations and instructions.
NOTE: Check oil often during engine break–in. Refer to
engine owner’s manual for recommendations.
CAUTION
• Refer to engine manual for oil and fuel fill information.
• Damage to equipment resulting from failure to follow this
instruction will void warranty.
Any attempt to crank or start the engine before it has
been properly filled with the recommended oil will result
in equipment failure.

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Connect Hose and Water Supply to
Pump
IMPORTANT: To avoid pump damage, you must assemble
the nozzle extension to the spray gun and attach all hoses
before you start the engine.
1. Uncoil high pressure hose and attach one end of hose to
base of spray gun (Figure 1).Tighten by hand.
2. Attach other end of high pressure hose to high pressure
outlet on pump (Figure 2).Tighten by hand.
3. Before connecting garden hose to water inlet, inspect
inlet screen (Figure 3). Clean screen if it contains debris
or replace if damaged. DO NOT RUN PRESSURE
WASHER IF SCREEN IS DAMAGED.
4. Run water through garden hose for 30 seconds to clean
out any debris.
IMPORTANT: DO NOT siphon standing water for water
supply. Use ONLY cold water (less than 100°F).
5. Connect garden hose (not to exceed 50 feet in length)
to water inlet.Tighten by hand (Figure 3).
6. Turn ON water and squeeze trigger on gun to purge
pump system of air and impurities.
Checklist Before Starting Engine
Review the unit’s assembly to ensure you have performed
all of the following.
1. Check that oil has been added to proper level in
engine crankcase.
2. Add proper gasoline to fuel tank.
3. Check for properly tightened hose connections (high
pressure and water supply) and there are no kinks,
cuts, or damage to e high pressure hose.
4. Provide a proper water supply at an adequate flow.
5. Be sure to read "Safety Rules" and "How To Use
Pressure Washer" before using pressure washer.
Connect high
pressure hose here
Figure 1 — Connect High Pressure Hose to Spray Gun
Figure 2 — Connect High Pressure Hose to Pump
Inspect inlet
screen, DO NOT
use if damaged;
clean if dirty.
Figure 3 — Connect the Garden Hose to Water Inlet
• Always wear eye protection when using this equipment or in
vicinity of where equipment is in use.
• Before starting the pressure washer, be sure you are wearing
adequate eye protection.
High pressure spray can cause paint chips or
other particles to become airborne.
WARNING
CAUTION
• Damage to equipment resulting from failure to follow this
instruction will void warranty.
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.

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HOW TO USE 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 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.
1. Place pressure washer near an outside water source
capable of supplying water at a flow rate greater than
3.0 gallons per minute and no less than 20 PSI at
pressure washer end of garden hose.
2. Check that high pressure hose is tightly connected to
spray gun and to pump. See “Preparing Pressure
Washer for Use” for illustrations.
3. Make sure unit is in level position.
4. Connect garden hose to water inlet on pressure
washer pump. Turn ON the water.
5. Attach adjustable nozzle extension to spray gun
(Figure 4).Tighten by hand.
6. Position nozzle in low pressure mode (see “How To
Use Adjustable Nozzle”) and squeeze trigger on spray
gun to relieve air pressure caused by turning ON
water.Water will flow out of spray gun in thin stream.
Continue to hold trigger until steady stream of water
occurs and no air remains in system.This will make it
easier to pull start the engine. Release trigger.
7. Engage safety latch to spray gun trigger (Figure 5).
8. Start engine according to instructions given in engine
owner’s manual.
NOTE: Always keep the throttle lever in the “Fast”
position when operating the pressure washer.
How To Stop Pressure Washer
• Turn engine off according to instructions given in the
engine owner’s manual.
•Squeeze trigger on the spray gun to relieve
pressure in the hose.
NOTE: A small amount of water will squirt out when
pressure is released.
Figure 4 — Connect Nozzle Extension to Spray Gun
Safety Latch
Figure 5 — Spray Gun with Safety Latch Engaged
CAUTION
• Always use handle to lift equipment.
• NEVER pull on hoses to move equipment.
Avoid fire from equipment tip over.
CAUTION
• Squeeze trigger on spray gun each time recoil starter is
pulled and engine fails to start.
Avoid injury from kickback.
CAUTION
• Damage to equipment resulting from failure to follow this
instruction will void warranty.
DO NOT run the pump without the water supply
connected and turned on.

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How To Use 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 to
apply detergent or other cleaning chemicals.
1. Slide nozzle forward to adjust spray to low pressure
mode (Figure 6). Slide nozzle backward to achieve high
pressure.
2. Point nozzle towards a firm surface and press trigger
to test spray pattern (Figure 7).
3. Twisting nozzle adjusts spray pattern from a narrow
pattern to a fan pattern (Figure 8).
4. For most effective cleaning, keep spray nozzle between
8 to 24 inches away from cleaning surface.
5. If spray nozzle is held too close to surface, especially
using high pressure mode, damage to surface may
occur.
6. DO NOT get closer than 6 inches when cleaning tires.
Applying Detergent With Adjustable
Nozzle
IMPORTANT: Use soaps designed specifically for
pressure washers. Household detergents could damage
the pump.
To apply detergent, follow these steps:
1. Review adjustable nozzle use.
2. Prepare detergent solution as required by job.
3. Place filter end of chemical injection hose into detergent
container.
Slide nozzle backward
for High Pressure
Mode
Slide nozzle forward for low
pressure mode and
detergent application
Figure 6 — Adjusting Nozzle for Pressure
Figure 7 — Testing the Spray Pattern
Figure 8 — Adjusting the Nozzle for Spray Pattern
Rotate nozzle
counterclockwise for fan
spray pattern
Rotate nozzle clockwise
for narrow spray pattern
CAUTION
• Starting the engine without all the hoses connected and
without the water turned ON will damage the pump.
• Damage to equipment resulting from failure to follow this
instruction will void warranty.
You must attach all hoses before you start the engine.
• NEVER adjust spray pattern when spraying.
• NEVER put hands in front of nozzle to adjust spray pattern.
A pressure washer produces a high pressure spray
which increases risk of injury and damage to unit.
CAUTION

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4. Slide adjustable nozzle forward to low pressure mode.
Detergent cannot be applied with nozzle in high pressure
position.
5. Make sure garden hose is connected to water inlet.
Check that high pressure hose is connected to spray gun
and pump; start engine.
6. Apply detergent to a dry surface, starting at lower
portion of area to be washed and work upward, using
long, even, overlapping strokes.
7. Allow detergent to "soak in" for 3-5 minutes before
washing and rinsing. Reapply as needed to prevent
surface from drying. DO NOT allow 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
For Rinsing:
1. Slide nozzle backward to high pressure, press trigger and
wait for detergent to clear.
NOTE: You can also stop detergent from flowing by simply
removing chemical injection hose from bottle.
2. Keep spray gun a safe distance from surface.
3. Apply high pressure spray to a small area, then check
surface for damage. If no damage is found, it is okay to
continue cleaning.
4. Start at top of area to be rinsed, working down with
same overlapping strokes as used for washing and
applying detergent.
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 temperatures
above 125°F.The system engages to cool the pump by
discharging the warm water onto the ground.
• Keep spray nozzle between 8 to 24 inches away from cleaning
surface.
• Operate this unit on a stable surface.
• Be extremely careful if you must use the pressure washer from
a ladder, scaffolding or any other relatively unstable location.
• Firmly grasp spray gun with both hands when using high
pressure spray to avoid injury if gun kicks back.
High pressure spray could cause you to fall if
you are too close to the cleaning surface.
WARNING
CAUTION
• When inserting the filter into a detergent solution bottle,
route the tube so as to keep it from inadvertently contacting
the hot muffler.
Keep the chemical injection tube from coming in contact
with the hot muffler.