Simplicity 01037-1 Operator's Manual

GENERAC
The Reliable Ones
1650PSI
Pressure Washer Owner’s Manual
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Model No. 1037–1 (1650 PSI High Pressure Washer) Manual No. B4254 Revision 3 (4/19/1999)
This symbol points out important safety instructions, which, if not followed, could endanger the
personal safety and/or property of yourself and others. Read and follow all instructions in the
manual before attempting to operate this unit.
Generac Portable Products 1650PSI Pressure Washer
IMPORTANT - SAFETY RULES - IMPORTANT
Save for future reference
• Operate engine only at governed speed. Running
the engine at excessive speeds increases the
hazard of personal injury. Do not tamper with parts
which may increase or decrease the governed
speed.
WARNING:
The engine exhaust from this product contains
chemicals known to the State of California to
cause cancer, birth defects, or other
reproductive harm.
• Do not wear loose clothing, jewelry or anything that
may be caught in the starter or other rotating parts.
SAFETY RULES
• Before starting the Pressure Washer in cold
weather, check all parts of the equipment to assure
ice has not formed there.
CAUTION! Always disconnect spark plug
wire and place wire where it cannot contact
spark plug to prevent accidental starting when
setting up, transporting, adjusting or making
repairs to your high pressure washer.
• Units with broken or missing parts, or without
protective housing or covers should NEVER be
operated.
• The muffler and air cleaner must be installed and in
good condition before operating the Pressure
Washer. These components act as spark arrestors
if the engine backfires.
• Gasoline is highly FLAMMABLE and its vapors are
EXPLOSIVE. Do not permit smoking, open flames,
sparks or heat in the vicinity while handling
gasoline. Avoid spilling gasoline on a hot engine.
Allow unit to cool for 2 minutes before refueling.
Comply with all laws regulating storage and
handling of gasoline.
• Check the fuel system for leaks or signs of
deterioration such as chafed or spongy hose, loose
or missing clamps or damaged tank or cap. Correct
all defects before operating the Pressure Washer.
• Locate this pressure washer in areas away from
combustible materials, combustible fumes or dust.
• Do not spray flammable liquids.
• Never aim the gun at people, animals or plants.
• The high pressure equipment is designed to be
used with Generac authorized parts only. If you use
this equipment with parts that do not comply with
minimum specifications, the user assumes all risks
and liabilities.
• High pressure spray can cause paint chips or other
particles to become airborne and fly at high speeds.
• Never allow any part of the body to come in contact
with the fluid stream. DO NOT come in contact with
a fluid stream created by a leak in the high pressure
hose.
• Some chemicals or detergents may be harmful if
inhaled or ingested, causing severe nausea,
fainting or poisoning. The harmful elements may
cause property damage or severe injury.
• The high pressure stream of water that this
equipment produces can pierce skin and its
underlying tissues, leading to serious injury and
possible amputation.
• Do not allow CHILDREN to operate the Pressure
Washer at any time.
2
Generac Portable Products 1650PSI Pressure Washer
IMPORTANT - SAFETY RULES - IMPORTANT
Save for future reference
• Always wear eye protection when you use this
equipment or when you are in the vicinity where the
equipment is in use.
• Keep water spray away from electric wiring or fatal
electric shock may result.
• Do not secure trigger gun in the pull-back (open)
position.
• Operate the pressure at no more than the PSI fluid
pressure rated for your pressure washer.
• Do not by-pass any safety device on this machine.
• Never move the machine by pulling on the high
pressure hose. Use the handle provided on the top
of the unit.
• The muffler and engine heat up during operation
and remain hot immediately after shutting it down.
Avoid contact with a hot muffler or engine or you
could be severely burned.
• Always be certain the spray gun, nozzles and
accessories are correctly attached.
• Operate and store this unit on a stable surface.
• Never use a spray gun which does not have a
trigger lock or trigger guard in place and in working
order.
• High pressure hoses can develop leaks from wear,
kinking, abuse, etc. Water spraying from a leak is
capable of injecting material into skin. Inspect the
hose each time before using it. Check all hoses for
cuts, leaks, abrasions or bulging of cover, or
damage or movement of couplings. If any of these
conditions exist, replace hose immediately. Never
repair the high pressure hose. Replace it with
another hose that meets minimum pressure rating
of your pressure washer.
• Use a respirator or mask whenever there is a
chance that vapors may be inhaled. Read all the
instructions included with the mask so you are
certain the mask will provide the necessary
protection against inhaling harmful vapors.
• High pressure spray may damage fragile items
including glass. Do not point spray gun at glass
when in the jet spray mode.
In the State of California a spark arrestor is required
by law (Section 4442 of the California Public
Resources Code). Other states may have similar
laws. Federal laws apply on federal lands.
• Keep the hose connected to machine or the spray
gun while the system is pressurized. Disconnecting
the hose while the unit is pressurized is dangerous.
NOTE: If you equip the engine of your pressure
washer with a spark arrestor muffler, the spark
arrestor must be maintained in effective working order
by the owner/operator.
• Hold the spray gun firmly in your hand before you
start the unit. Failure to do so could result in an
injury from a whipping spray gun. Do not leave the
spray gun unattended while the machine is running.
See Engine Owner’s Manual for part number and
ordering instructions.
• The cleaning area should have adequate slopes
and drainage to reduce the possibility of a fall due
to slippery surfaces.
3
Generac Portable Products 1650PSI Pressure Washer
CONGRATULATIONS on your purchase of a
Generac Portable Products pressure washer. It has
been designed, engineered and manufactured to give
you the best possible dependability and performance.
PRODUCT
SPECIFICATIONS
Should you experience any problem you cannot
easily remedy, please contact your nearest Generac
Portable Products Authorized Service facility, or call
1–800–270–1408. We have competent, well-trained
technicians and the proper tools to service or repair
this unit.
Pressure Washer Specifications
Outlet Pressure . . . . 1650 psi
Flow Rate . . . . . . . . . 2.0 gallons per minute (gpm)
Detergent Mix . . . . . . Use undiluted detergent
approved for pressure
washers
Please read and retain this manual. The instructions
will enable you to assemble and maintain your high
pressure washer properly.
Water Supply . . . . . . Not to Exceed 140°F
Temperature
CUSTOMER
RESPONSIBILITIES
Automatic Cool . . . . Will cycle when water
Down System
reaches 140°-145°F
• Read and observe the safety rules.
Engine Model . . . . . . Briggs & Stratton Sprint
• Follow regular schedule in maintaining, caring for
and using your high pressure washer.
Rated Horsepower . . 4.0
• Follow the instructions under “Customer
Responsibilities” and “Storage” sections of this
Owner's Manual.
Spark Plug
Type . . . . . . . . RJ–19LM
Set Gap To: . . 0.030 inch (0.76mm)
Engine Specifications
Displacement . . . . . . 158cc
Gasoline Capacity . . 1.0 U.S. quarts
Oil . . . . . . . . . . . . . . . SAE 30
4
Generac Portable Products 1650PSI 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.
Spray Gun
Goggles
Recoil Starter
Oil Fill Tube
High Pressure Outlet
Adjustable Nozzle
High Pressure Hose
Air Cleaner
Primer Bulb
Gas Tank
Pump equipped with
Automatic Cool Down
System
Water Inlet
Adjustable Nozzle Extension — You must attach
this to the spray gun to provide high pressure stream.
Adjustable nozzle allows you to adjust force of spray
and spray pattern.
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 140°-145°F.
Warm water will discharge from pump onto
ground. This system prevents internal pump
damage.
Gas Tank — Fill tank with regular unleaded gasoline.
Goggles — Always use the enclosed goggles or
other eye protection when running your pressure
washer.
High Pressure Hose — Connect one end to water
pump and the other end to spray wand.
High Pressure Outlet — Connection for high
pressure hose.
Oil Fill Tube — See page 7 for oil recommendations.
Primer Bulb — Prepares a cold engine for starting.
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.
Water Inlet — Connection for garden hose.
5
Generac Portable Products 1650PSI Pressure Washer
PREPARING PRESSURE
WASHER FOR USE
Read entire Owner’s manual before you attempt to
assemble or operate your new pressure washer. Your
new pressure washer has been assembled at the
factory with exception of those parts left unassembled
for shipping purposes.
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.
REMOVE PRESSURE
WASHER FROM CARTON
To prepare your pressure washer for operation you
will need to perform these tasks:
• Attach the handle and attach the wire form that
holds high pressure hose and spray gun.
• Remove parts box included with pressure washer.
• Slice two corners at guide handle end of carton
from top to bottom so the panel can be folded down
flat, then remove all packing material.
• Connect high pressure hose to the spray gun and
the pump and connect water supply to the pump.
• Add oil to engine crankcase.
• Roll pressure washer out of carton.
• Add fuel to fuel tank.
CARTON CONTENTS
Attach the Handle
Items in the carton include:
• Main Unit
• Parts Box (which includes the following):
• Wireform
• Goggles
• Nozzle Cleaning Kit
• Owner’s Manual
• Engine Manual
• Spray Gun
• Nozzle Extension
• High Pressure Hose
• Handle
• O–Ring Maintenance Kit
• Warranty Card
• Parts Bag (which includes the following):
• 2 carriage bolts
• 2 knobs
If any of the above parts are missing or damaged, call
the pressure washer helpline at 1–800–270–1408.
• Place the top of the handle onto the bottom of the
handle already connected to the main unit making
sure the holes in the top align with the holes on the
bottom. (Figure 1)
Figure 1 — Attach the handle to the handle supports on
the unit base.
Make sure the
holes on the
top of the
handle are
aligned with the
holes in the
bottom of the
handle
6
Generac Portable Products 1650PSI Pressure Washer
• Insert the carriage bolts through the holes and
attach the plastic knobs. Tighten the knobs by
hand. (Figure 2)
Do Not Use SAE 10W40 Oil.
Although multi-viscosity oils (5W30, 10W30, etc.)
improve starting in cold weather, these multi-viscosity
oils will result in increased oil consumption when used
above 32°F. Check your engine oil level more
frequently to avoid possible damage from running low
on oil.
Figure 2 — Attach carriage bolts and knobs.
• Place pressure washer on a level surface.
• Clean area around oil fill and remove oil dipstick.
(Figure 4)
Figure 4 — Add oil to engine crankcase.
Add oil here.
• Insert the wire support with the longer arm
positioned on the left. From this view the hook
should resemble a “J”. (Figure 3)
Figure 3 — Attach wireform to handle.
• Wipe dipstick clean. Pour oil into oil fill opening until
oil reaches “Full” mark on the dipstick. Stop
occasionally to check oil level. Do Not Overfill!
• Install oil dipstick, hand tighten securely.
Note: Check Oil Often During Engine Break–in.
Add Gasoline
Add Engine Oil
DANGER! Never fill fuel tank indoors. Never
fill fuel tank when engine is running or hot. Do
not smoke when filling fuel tank.
WARNING! Any attempt to crank or start the
engine without adding the recommended oil
may result in an engine failure.
WARNING! Never fill fuel tank completely
full. Fill tank to about 1/2" below the bottom of
the filler neck to provide space for fuel
expansion. Wipe away any fuel spillage from
engine and equipment before starting.
Note: When adding oil to the engine crankcase, use
only high quality detergent oil rated with API service
classification SF,SG, SH or SH/CD rated SAE 30
weight.
The manufacturer recommends fresh, clean unleaded
regular automotive gasoline.
Select the oil’s viscosity grade according to your
expected operating temperature:
colder
32°F
5W30
• Use clean fuel and store in approved, clean
covered containers. Use clean fill funnels. Never
use “stale” gasoline left over from last season or
gasoline stored for long periods.
warmer
SAE 30
7
Generac Portable Products 1650PSI Pressure Washer
• Clean area around fuel fill cap, remove cap
(Figure 5).
Figure 7 — Connect high pressure hose to pump.
Figure 5 — Add gasoline to fuel tank.
Gas Cap
• Before you connect your garden hose to the water
inlet, inspect the Inlet Screen (Figure 8). Clean the
screen if it contains debris or have it replaced if
damaged. DO NOT RUN THE PRESSURE
WASHER IF THE SCREEN IS DAMAGED.
• Add “UNLEADED” regular gasoline, slowly, to fuel
tank. Use a funnel to prevent spillage.
• Install fuel cap and wipe up any spilled gasoline.
Figure 8 — Connect the garden hose to water inlet and
turn ON the water.
Connect Hose and Water Supply to
Pump
IMPORTANT: You must assemble wand and attach
all hoses before you start engine. Starting engine
without all hoses connected and water supplied will
damage pump.
• Uncoil high pressure hose and attach one end of
hose to the base of the spray gun (Figure 6).
Tighten by hand.
Inspect Inlet
Screen
Figure 6 — Connect high pressure hose to spray gun.
• Purge garden hose of debris by running water
through it for 30 seconds.
• Connect garden hose to water inlet. Tighten by
hand (Figure 8)
• Turn ON the water.
• Squeeze trigger on gun to purge pump system of
air and impurities.
CAUTION! Before starting the pressure
washer, be sure you are wearing adequate
eye protection.
• Attach other end of high pressure hose to the high
pressure fitting on the pump (Figure 7). Tighten by
hand.
8
Generac Portable Products 1650PSI Pressure Washer
HOW TO USE THE
PRESSURE WASHER
• Attach nozzle extension to spray gun. Tighten By
Hand (Figure 9).
Figure 9 — Connect nozzle extension to spray gun.
If you have any problems operating your pressure
washer, please call the pressure washer helpline at
1-800-270-1408.
You have assembled your high pressure washer and
have prepared the engine for starting. You are now
ready to clean your car, boat or the outside of a
building or whatever you plan to clean.
How to Start Engine
CHECKLIST BEFORE
STARTING ENGINE
The best way to start your engine-powered pressure
washer for the first time is to follow these instructions
step-by-step. This starting information also applies
whenever you start the engine after you have let the
pressure washer sit idle for at least a day.
Review the assembly to see if you have performed all
of the following.
• Place the pressure washer in an area close enough
to an outside water source that can flow at a rate of
2.5 gallons per minute.
• Check for properly tightened hose connections
(high pressure and water supply) and for tight
connections and that there are no kinks, cuts, or
damage to the high pressure hose.
• Check that the high pressure hose is tightly
connected to the spray gun and to the pump. See
ASSEMBLY section for illustrations.
• Check that oil has been added to proper level in
engine crankcase before trying to start the pressure
washer.
• Connect the garden hose to water inlet on the
pressure washer pump and turn on the water.
• Add proper gasoline to fuel tank.
IMPORTANT: Do not run pump without the water
supply connected and turned on. You must follow this
caution or the pump will be damaged.
• Provide proper water supply (not to exceed 140°F).
• Be sure to read “Safety Rules” and “Operation
sections before using the pressure washer.
• Move the Throttle Control Lever to the ‘Fast’
position
Note: For a warm engine, be sure the Throttle Control
Lever is in the ‘Fast’ position.
• Squeeze the trigger on the spray gun to relieve the
air pressure caused by turning ON the water. Water
will spew out the gun in a thin stream. This will
make it easier to pull start the engine. Release the
trigger.
9
Generac Portable Products 1650PSI Pressure Washer
How to Stop Pressure Washer
• Apply the safety latch to the spray gun trigger
(Figure 10).
• Move the Throttle Control Lever to the ‘Slow’
position.
Figure 10 — Safety Latch
• Wait for the engine to idle down.
• Move the Throttle Control Lever to the ‘Stop’
position.
Safety Latch ON
• 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 release the pressure.
How to Use the Adjustable Nozzle
To start the engine for the first time:
• Make sure the engine throttle lever is in the “Fast”
position.
You now should know how to START your pressure
washer and how to STOP it. The information in this
section will tell you how to adjust the spray pattern
and apply detergent or any other cleaning chemicals.
• Push primer bulb firmly 5 times waiting 2 seconds
between each push.
• Grasp rope handle and pull slowly until you feel
some resistance. Then pull cord rapidly to
overcome compression, prevent kickback and start
the engine. Let rope return to starter slowly.
DANGER! Never adjust spray pattern when
spraying. Never put hands in front of nozzle to
adjust spray pattern.
On the end of your spray gun is a nozzle that you can
slide forward and backward and that you can also
twist from side to side. With the adjustable nozzle you
can adjust the spray pattern to be either high
pressure or low pressure. You can also adjust the
spray so it is concentrated in a stream pattern or
expanded into a fan pattern.
Note: Always keep the Throttle Control Lever in the
‘Fast’ position when operating the pressure washer.
To start engine thereafter:
• Make sure the engine throttle control is in the “Fast”
position.
• Press the primer bulb 3 times. For a warm engine,
do not prime.
• Slide the nozzle forward when you wish to adjust
the spray to low pressure mode. See Figure 11 at
the bottom of the next page. Slide the nozzle
backward to achieve high pressure.
• Grasp rope handle and pull slowly until you feel
some resistance. Then pull cord rapidly to
overcome compression, prevent kickback and start
the engine. Let rope return to starter slowly.
• If engine fails to start repeat steps.
10
Generac Portable Products 1650PSI Pressure Washer
• Point the nozzle toward the ground and press the
trigger to test the pattern (Figure 12).
• If you get the spray nozzle too close, especially
using high pressure mode, you may damage the
cleaning surface.
Figure 12 — Testing the spray pattern.
• Do not get closer than 6 inches when cleaning
automobile tires.
Applying Detergent with the
Adjustable Nozzle
IMPORTANT: Use soaps designed specifically for
pressure washers. Household detergents could
damage the pump.
IMPORTANT: You must attach all hoses before you
start the engine. Starting the engine without all the
hoses connected and without the water turned ON
will damage the pump.
To apply detergent follow these steps:
• Review the use of adjustable nozzles on Page 11.
• Prepare the detergent solution as required by the
job.
• Twisting the nozzle adjusts the spray pattern from a
narrow pattern to a fan pattern.
• Hang the detergent solution on hook of the
wireform on the handle (Figure 13).
• For most effective cleaning, keep spray nozzle
between 8 to 24 inches away from cleaning
surface.
Figure 11 — Using the adjustable nozzle.
Slide Nozzle Backward
for High Pressure
Mode
Slide Nozzle Forward
for low pressure
mode and detergent
application
Twist nozzle
counterclockwise for
fan spray pattern
11
Twist nozzle
clockwise for narrow
spray pattern
Generac Portable Products 1650PSI Pressure Washer
Pressure Washer Rinsing
Figure 13 — Insert the small filter into container of
cleaning solution.
WARNING: Be extremely careful if you must
use the pressure washer from a ladder,
scaffolding or any other relatively unstable
location. Pressure in a running washer builds
as you climb. When you press the trigger, the
recoil from the initial spray could force you to
fall. The high pressure spray could also force
you to fall if you are too close to the cleaning
surface.
• Place small filter of the clear, detergent siphoning
tube into the detergent container.
For Rinsing:
• Slide nozzle backward to high pressure and wait for
detergent to clear.
CAUTION! Keep the plastic injector tube
• Keep the spray gun a safe distance from the area
you plan to spray.
from coming in contact with the hot muffler.
This will damage the plastic tube. When
inserting the filter into a cleaning agent bottle,
route the tube so as to keep it from
inadvertently contacting the hot muffler.
• Apply a high pressure spray to an small area and
then check the surface for damage. If no damage is
found, you can assume it is okay to continue
cleaning.
• Slide the adjustable nozzle forward to low pressure
mode. Detergent cannot be applied with nozzle in
high pressure position.
• Start at top of area to be rinsed, working down with
same overlapping strokes as you used for cleaning.
Note: You can also stop detergent from flowing by
simply removing siphon from bottle.
IMPORTANT: Detergent cannot be applied without
the water source turned on.
• Make sure garden hose is connected to water inlet.
Check that high pressure hose is connected to
spray gun and pump (see ASSEMBLY), and start
engine.
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.
• Apply detergent to a dry surface, starting from the
bottom and working up.
• Allow the detergent to soak in between 3-5 minutes
before washing and rinsing.
• For washing, start at lower portion of area to be
washed and work upward, using long, even
overlapping strokes.
12
Generac Portable Products 1650PSI Pressure Washer
GENERAL MAINTENANCE
RECOMMENDATIONS
DANGER! Water spraying from a leak is
capable of injecting material into skin. Inspect
hose each time before using it. Never repair a
high pressure hose. Replace it with another
hose that meets the maximum pressure rating
of your pressure washer.
The warranty of the high pressure washer does not
cover items that have been subjected to operator
abuse or negligence. To receive full value from the
warranty, operator must maintain high pressure
washer as instructed in this manual.
Check Detergent Hose
Examine the filter on the detergent hose and clean if
clogged. Hose should fit tightly on barbed fitting.
Examine hose for leaks or tears. Replace the filter or
hose if either is damaged.
• Some adjustments will need to be made
periodically to properly maintain your high pressure
washer.
• All adjustments in the Service and Adjustments
section of this manual should be made at least
once each season.
Check In-Line Filter
Refer to Figure 14 and service the in-line filter if it
becomes clogged, as follows:
• Once a year you should clean or replace the spark
plug and clean or replace the air filter and check the
gun and wand assembly for wear. A new spark plug
and clean air filter assure proper fuel-air mixture
and help your engine run better and last longer.
Figure 14 — Check In-Line Filter.
Filter Screen
Before Each Use
• Check engine oil level.
Lance
• Check water inlet screen for damage.
O-ring
• Check high pressure hose for leaks.
• Check detergent inlet hose and filter for damage.
1. Detach gun and lance from high pressure hose.
Detach lance from gun and remove o-ring and
screen from lance. Flush the screen, gun, and
lance with clean water to clear debris.
• Check gun and wand assembly for leaks.
PRESSURE WASHER
MAINTENANCE
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.
Check and Clean Inlet Screen
3. Place the in-line filter screen into the threaded
end of the lance. 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.
Examine screen on the water inlet. Clean if the
screen is clogged or replace if screen is damaged.
Check High Pressure Hose
4
A 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 hose immediately.
Place the o-ring into the recess. Push the o-ring
snugly against the in-line filter screen.
5. Assemble the lance to the spray gun, as
described earlier in this manual.
13
Generac Portable Products 1650PSI Pressure Washer
Check Gun and Wand
Nozzle Maintenance
Examine hose connection to gun and make sure it is
secure. Test trigger by pressing it and making sure it
springs back into place when you release it. Put
safety latch in ON position and test trigger. You
should not be able to press trigger.
If the adjustable nozzle becomes restricted or
clogged with foreign materials, such as dirt, excessive
pump pressure may develop. If this nozzle becomes
partially clogged, it can cause a pulsing sensation
during use. This generally is not a pump related
problem, but rather a clogged or partially restricted
adjustable nozzle.
Purge Pump of Air and
Contaminants
If the adjustable nozzle becomes clogged or partially
restricted, immediately clean the nozzle with the kit
included with your pressure washer by following
these instructions:
To remove the air from the pump, follow these steps:
• Set up the pressure washer as described in the
ASSEMBLY section and connect the water supply.
• Shut off the engine and turn off the water supply.
• Remove the wand extension from the gun.
• Separate the wand extension from the gun.
• Pull the trigger on the gun and hold.
• Adjust the wand extension to the stream position.
To remove the contaminants from the pump, follow
these steps:
• Remove nozzle from the end of the wand extension
(Figure 14) using a 2mm or 5/64 allen wrench (like
the one included in the kit).
• Set up the pressure washer as described in the
ASSEMBLY section, and connect the water supply.
• Use the wire included in the kit (Figure 14) or a
small paper clip to free the foreign materials
clogging or restricting the nozzle.
• Remove the nozzle attachment from the gun.
• Start the engine according to instructions in
OPERATION section.
Figure 14 — Remove and clean nozzle.
• Squeeze the trigger on the gun and hold.
• When the water supply is steady and constant,
engage the safety latch and refasten the nozzle
attachment.
Cleaning Chemical Injector Hose.
If you have used the chemical injector hose you must
flush it with clean water before stopping the engine.
• Place Chemical Injector Hose in a bucket full of
clean water.
• Flush for five minutes.
• Shut off the engine.
IMPORTANT: Simply shutting OFF engine will not
release pressure in the system. When engine has
shut down, squeeze the trigger on the gun to relieve
the pressure in the hose.
14
Generac Portable Products 1650PSI Pressure Washer
PREPARING THE UNIT FOR
STORAGE
• Remove additional debris by back flushing water
supply through wand extension (Figure 15). Back
flush between 30 to 60 seconds. Turn wand
extension to stream spray and move nozzle from
low to high while flushing.
Water should not remain in the unit for long periods of
time. Sediments of minerals can deposit on pump
parts and “freeze” pump action. If you do not plan to
use the pressure washer for more than 30 days,
follow this procedure:
Figure 15 — Backflush the nozzle.
1. Flush detergent hose by placing the injector filter
into a pail of clean water while running pressure
washer with nozzle in low pressure mode. Flush
for five minutes.
2. Shut off the engine and let it cool, then remove all
hoses.
• Reinstall nozzle into the wand extension. DO NOT
over tighten.
3. Place throttle lever in STOP position.
• Reconnect the wand extension to the gun.
CAUTION! Be sure lever is in “STOP”
• Reconnect the water supply, turn on the water, and
start the engine.
position before you continue. If you start
engine without proper water supply connected,
you can damage pump.
• Test the pressure washer by operating with nozzle
in the high and in the low position.
4. Empty the pump of all pumped liquids by pulling
recoil handle about 6 times. This should remove
most of the liquid in the pump.
ENGINE MAINTENANCE
See the engine owner’s manual for instructions on
how to properly maintain the engine.
NOTE: To protect unit from freezing temperatures,
draw windshield washer fluid into pump by pouring
windshield washer fluid into a 3-foot section of garden
hose connected to inlet adapter and pulling recoil
handle twice.
5. Store in a clean, dry area.
STORING THE ENGINE
See the engine Owner’s manual for instructions on
how to properly store the engine.
15
Generac Portable Products 1650PSI 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
1. Pull nozzle backward for high
pressure mode.
2. Clear inlet
3. Provide adequate water flow.
4. Inlet hose is kinked or leaking
4. Straighten inlet hose, patch leak.
5. Clogged inlet hose strainer.
5. Check and clean inlet hose
strainer.
6. Water supply is over 140°F.
6. Provide cooler water supply.
7. Outlet hose is blocked or leaks.
7. Clear blocks in outlet hose.
8. Gun leaks.
8. Replace gun.
9. Nozzle is obstructed.
9. Clear nozzle.
10. Pump is faulty.
10. Contact Generac service facility.
1. Detergent line is not submerged.
1. Insert chemical line into deter
gent.
2. Chemical filter is clogged.
2. Clean or replace filter/detergent
line.
3. Nozzle is in high pressure mode.
3. Push nozzle forward for
low pressure mode.
Engine speed is too slow.
Move throttle control to FAST .
position. If engine still “bogs down”
contact Generac service facility.
Detergent fails to mix with spray.
Engine runs good at no-load but “bogs”
when load is added.
16
Generac Portable Products 1650PSI Pressure Washer
TROUBLESHOOTING
Problem
Cause
Correction
Engine will not start; or starts
and runs rough
1. Low oil level
2. Dirty air cleaner
1. Fill crankcase to proper level.
2. Clean or replace air cleaner.
3. Out of gasoline.
3. Fill fuel tank.
4. Stale gasoline.
4. Drain gas tank; fill with fresh fuel.
5. Spark plug wire not connected
to spark plug
5. Connect wire to spark plug.
6. Bad spark plug.
6. Replace spark plug.
7. Water in gasoline.
7. Drain gas tank; fill with fresh fuel.
8. Overchoking.
8. Open choke fully and crank
engine.
9. Excessively rich fuel mixture.
9. Contact Briggs & Stratton service
facility.
10. Intake valve stuck open or closed.
10. Contact Briggs & Stratton service
facility.
11. Engine has lost compression.
11. Contact Briggs & Stratton service
facility.
1. Out of gasoline.
1. Fill fuel tank.
2. Low oil level.
2. Fill crankcase to proper level.
Engine shuts down during operation
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.
17
Generac Portable Products 1650PSI Pressure Washer
EXPLODED VIEW — PRESSURE WASHER
18
Generac Portable Products 1650PSI Pressure Washer
PARTS LIST — PRESSURE WASHER
Item
1
2
3
4
5
6
7
8
10
11
12
13
14
15
16
17
18
19
20
21
22
23
Part #
B2192
B1460
AB1939
20566
30809
B4256
B1631B
B1932
49808
B2142
75402
AB1945
97178
31669
NSP
BB3061B
B3607
87815
B1953
88681
B3263
97566
Qty
1
3
1
1
1
1
1
1
2
2
2
1
2
2
1
1
1
1
1
1
1
1
Description
DECAL, "Generac"
CAP, Vinyl Black
BASE, VSPW
DECAL, 1-800 Number
GROMMET, Chemical Hose
DECAL, Logo 1650 PSI
BILLBOARD, Plastic
DECAL, Instructions
WASHER, M12 Flat
TIRE, 2" X 9" Black Mag
PUSHNUT, 1/2"
HANDLE, VS PW
KNOB, PW Handle
BOLT, 1/4"-20 X 1.75"
Carriage
ENGINE, 4HP
OIL, 20oz
HOSE, 1/4" X 25'
GOGGLES, Safety
WIREFORM
CARD, Owners Registration
GUN, High Pressure
HANG TAG, Nozzle
Item
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
19
Part #
B3335A
B2203
B3386
B4254
B2163
B3057
A1041
B1210A
A1040B
97100
52858
27007
50190
B1214
B1735
B1880
21424
A1408
B3468A
98300
48031G
94804
Qty
1
1
1
1
1
1
1
1
1
1
2
2
2
2
3
3
1
1
1
1
1
1
Description
WAND, Adjustable Nozzle
KIT, Handle Fastening
MANUAL, Engine
MANUAL, Pressure Washer
KIT, Nozzle Cleaning
KIT, O-Ring Maintenance
FILTER, Chemical Hose
CARD, Starting Instructions
HOSE, Chemical
CAP, High Pressure
NUT, M8 Locking Flange
MOUNT, Rubber Foot
WASHER, M8 Flat
HHCS, M8 X 1.25 X 45 Long
STUD, Double Ended
NUT, With Washer
CONNECTOR, Garden Hose
CAP, Garden Hose Inlet
PUMP, GPW-EG Assembly
SEAL, Engine Donut
CLAMP, Hose 3/16"
NOZZLE, Replacement
Generac Portable Products 1650PSI Pressure Washer
EXPLODED VIEW — PUMP
20
Generac Portable Products 1650PSI Pressure Washer
PARTS LIST — PUMP
Item
1
2
3
4
5
6
7
8
9
10
11
12
Part #
98300
97962
96795
21429
97835
21783
93680
97831
B2702
98227
B2310
......
Qty
1
3
3
6
1
1
3
3
1
1
0
1
13
14
15
16
17
18
19
20
21
22
23
24
25
......
......
......
......
B3829
......
......
......
......
......
B3828
......
......
1
1
1
1
0
1
1
1
1
1
0
1
1
Description
SEAL, Engine Donut
SHCS, M6 - 1 x 25
SLEEVE, Grommet Spacer
BUSHING, Rubber Mount
O-RING, Housing Seal
THERMAL RELIEF, GPW-EG
SEAL, Oil Piston 15 TC4
SPACER, Pilot
HOUSING, Piston
ADAPTER, Engine
KIT, AXIAL CAM SERV
WASHER, Brg. 36 x 65 x 6
Thk
ASSY., Brg. Cage 45 x 65
WASHER, Brg. 45 x 65 x 1
CAM, Axial 5.6 VS
BALL BEARING, 35 x 72 x 17
KIT, CHEM INJECT
FITTING, Chem Inject
BALL, Chem Inject
SPRING, Chem Inject
O-RING, Venturi
VENTURI, Chem Inject
KIT, UNLOADER
CAP, Unloader
O-RING, Unloader Cap
Item
26
27
28
29
30
31
32
33
34
Part #
......
......
......
......
B3513
......
......
B3286
97837
Qty
1
1
1
1
0
6
6
3
1
35
36
37
38
39
40
41
42
43
44
45
1
5
7
21
25
97841
97840
40946
B4186
......
......
B2312
......
......
......
B1933
......
......
......
......
......
3
3
4
0
1
1
0
3
3
3
0
1
1
3
1
1
Description
SPRING, 2000 Unloader
PISTON, Unloader
O-RING, .364 ID x .070
SEAT, 2000 Unloader
KIT, CHECK VALVES
O-RING, Check Valve
ASSY., Check Valve
SEAL, Double-Lip
O-RING, Hi-Pressure
Transfer
CAP, Outlet Check Valve
O-RING, Outlet CV Cap
SHCS, M6-1.0 x 35
KIT, HEAD CASTING SFG
HEAD, Pump
PLUG, 1/8-28 W/VIBR
KIT, PISTON & SPRING
RETAINER, Piston Spring
PISTON, Dia. 15 x 65 Lg
SPRING, Piston Return
KIT, O-RING/SEAL SERV
SEAL, Engine Donut
O-RING, Housing Seal
SEAL, Oil Piston 15 TC4
O-RING, Venturi
O-RING, Unloader Cap
Item numbers 11, 17, 23, 30, 38, 41, and 45 are service kits and include all parts shown within the box. Items
previously described are not listed under the service kit number.
21
Generac Portable Products 1650PSI Pressure Washer
NOTES
22
Generac Portable Products 1650PSI Pressure Washer
NOTES
23
LIMITED PRESSURE WASHER WARRANTY
Generac Portable Products LLC (hereafter referred to as GENERAC LLC) warrants to the original retail purchaser,
the pressure washer manufactured by GENERAC LLC to be free from defects in material and workmanship for
the period(s) set forth below from the date of original purchase. This warranty is not transferable. The term
“original purchaser” means the person for whom the pressure washer is originally purchased.
Warranty Schedules
Electric Power Washer
All Other Engine-driven
1 year (does not apply to commercial or rental applications)
Engine:
CONSUMER*
Warranted solely by
Engine Manufacturer
COMMERCIAL*
Warranted solely by
Engine Manufacturer
Pump:
1 year
90 days
* NOTE: For the purpose of this warranty “consumer use” means personal residential household use by
original purchaser. “Commercial Use” means all other uses, including rental, construction, commercial
and income producing purposes. Once a pressure washer has experienced commercial use, it shall
thereafter be considered a commercial use pressure washer for the purposes of this warranty.
During said warranty period, GENERAC LLC will, at its option, repair or replace any part which, upon examination
by GENERAC LLC or GENERAC LLC Authorized Dealers, is found to be defective under normal use and
service**. All transportation costs under warranty, including return to the factory if necessary, are to be borne by
the purchaser and prepaid by the purchaser.
** NORMAL WEAR: As with all mechanical devices, pressure washers need periodic parts service and
replacement to perform well. This warranty does not cover repair when normal use has exhausted the life
of a part or pressure washer pump.
This warranty does not include: Used products and demonstration equipment. Parts, such as GUNS, HOSES,
WANDS, NOZZLES or other wear items such as quick couplers, oil, gauges, belts, o-rings, filters, pump packing,
etc. Pumps which have been run without water supplied. Damage or malfunctions resulting from: accidents,
abuse, modifications, alterations, or improper servicing. Freezing or chemical deterioration. Normal maintenance
such as adjustments, fuel system cleaning and obstruction (due to chemical, dirt, carbon or lime, etc.).
THIS WARRANTY IS IN PLACE OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED,
SPECIFICALLY, GENERAC LLC MAKES NO OTHER WARRANTIES AS TO MERCHANTABILITY
OR FITNESS FOR A PARTICULAR PURPOSE. THE DURATION OF ANY IMPLIED WARRANTIES
WHICH CANNOT BE DISCLAIMED IS LIMITED TO THE TIME PERIOD AS SPECIFIED IN THE
EXPRESS WARRANTY. LIABILITY FOR CONSEQUENTIAL, INCIDENTAL, OR SPECIAL
DAMAGES UNDER ANY AND ALL WARRANTIES IS EXCLUDED, EVEN IF SUCH DAMAGES ARE
A DIRECT RESULT OF GENERAC LLC'S NEGLIGENCE. GENERAC LLC ALSO DISCLAIMS ANY
RESPONSIBILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES SUCH AS THE LOSS OF
TIME OR THE USE OF THE POWER EQUIPMENT, OR ANY COMMERCIAL LOSS DUE TO THE
FAILURE OF THE EQUIPMENT: AND ANY IMPLIED WARRANTIES ARE LIMITED TO THE
DURATION OF THIS WRITTEN WARRANTY.
Some states do not allow limitations on how long an implied warranty lasts, or the exclusion or limitation of
incidental or consequential damages, so the above limitations or exclusions may not apply to you. This warranty
gives you specific legal rights and you may also have other rights, which vary from state to state.
For service, see your nearest GENERAC LLC authorized warranty service facility or call 1-877-544-0982.
Warranty service can be performed only by a GENERAC LLC authorized service facility. This warranty will not
apply to service at any other facility. At the time of requesting warranty service, evidence of original purchase date
must be presented.
Generac Portable Products LLC
Jefferson, Wisconsin U.S. A.

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