Generac Portable Products Small Pro Power Washer User manual

MODEL:________________________
SERIAL:________________________
DATE PURCHASED:______________
Register your Generac product at:
WWW.GENERAC.COM
1-888-GENERAC
(1-888-436-3722)
SAVE THIS MANUAL FOR FUTURE REFERENCE
Small Pro Power Washer
Owner’s Manual
MODEL:________________________
SERIAL:________________________
DATE PURCHASED:______________
Register your Generac product at:
WWW.GENERAC.COM
1-888-GENERAC

Table of Contents
Section 1 Introduction and Safety
Introduction ......................................1
Safety Rules ....................................1
Safety Symbols and Meanings ........2
Section 2 General Information and
Setup
Know Your Power Washer ..............3
Emissions Information .....................3
Remove Contents from Carton ........3
Assembly .........................................3
Add Engine Oil .................................4
Check Pump Oil (Triplex Units) .......4
Fuel ..................................................4
Water Supply ...................................5
Connect Water Supply .....................5
Connect High-Pressure Hose and
Lance ...............................................5
Spray Gun .......................................6
Nozzles ............................................6
Section 3 Operation
Operation and Use Questions .........7
Before Starting Engine ....................7
Prepare Power Washer for Use .......7
Power Washer Placement for Use ......7
Transporting/Tipping of the Unit ..........7
Power Washer Start-Up ...................7
Power Washer Shut Down ..............8
Apply Detergent ...............................8
Rinsing .............................................9
Clean Detergent Siphoning Tube ....9
After Each Use ................................9
Automatic Cool Down System
(Thermal Relief) ...............................9
Adjustable Pressure Setting
(if equipped) .....................................9
Section 4 Maintenance and
Troubleshooting
Maintenance Recommendations ... 10
Maintenance Schedule .................. 10
Pump Oil (Triplex Units) ................ 10
Pump Oil
(Maintenance Free Pumps) ........... 10
Preventive Maintenance ................ 10
Inspect and Clean Inlet Screen .........10
Inspect High-Pressure Hoses ...........11
Inspect Detergent Siphoning Tube ...11
Inspect Spray Gun ............................11
Nozzle Maintenance .........................11
Engine Maintenance ..................... 11
Engine Oil Recommendations ..........11
Inspect Engine Oil Level ...................11
Change Engine Oil ............................12
Air Filter ......................................... 12
Service Spark Plug ........................ 12
Inspect Engine Spark ........................13
Inspect Muffler And Spark Arrestor ...13
Inspect Spark Arrestor Screen
(if equipped) ......................................13
Storage .......................................... 13
General .............................................13
Prepare Fuel System for Storage .. 14
Prepare Engine for Storage ..............14
Change Oil ........................................14
Prepare Pump for Storage ................14
Troubleshooting ............................ 15
(000004)
WARNING
California Proposition 65. Engine exhaust and some
of its constituents are known to the state of California
to cause cancer, birth defects, and other reproductive
harm.
(000005)
WARNING
California Proposition 65. This product contains or
emits chemicals known to the state of California to
cause cancer, birth defects, and other reproductive
harm.

Owner’s Manual for Power Washer 1
Introduction and Safety
Section 1 Introduction and Safety
Introduction
Thank you for purchasing a Generac Power
Systems Inc. product. This unit has been
designed to provide high performance,
efficient operation, and years of use when
maintained properly.
Read this manual thoroughly and understand
all of the instructions, cautions, and warnings
before using this equipment. If any section of
the manual is not understood, contact your
nearest independent authorized service
dealer or contact Generac Customer Service
at 1-888-GENERAC (1-888-436-3722), or
www.generac.com with any questions or
concerns.
The owner is responsible for proper
maintenance and safe use of the equipment.
Before operating, servicing or storing this
power washer:
• Study all warnings in this manual and on
the product carefully.
• Become familiar with this manual and the
unit before use.
• Refer to the Assembly section of the
manual for instructions on final assembly
procedures. Follow the instructions
completely.
Save these instructions for future reference.
ALWAYS supply this manual to any individual
that will use this machine.
THE INFORMATION CONTAINED HEREIN
WAS BASED ON MACHINES IN
PRODUCTION AT THE TIME OF
PUBLICATION. GENERAC RESERVES THE
RIGHT TO MODIFY THIS MANUAL AT ANY
TIME.
Safety Rules
The manufacturer cannot anticipate every
possible circumstance that might involve a
hazard. The warnings in this manual, and on
tags and decals affixed to the unit are,
therefore, not all inclusive. If using a
procedure, work method or operating
technique that the manufacturer does not
specifically recommend, verify that it is safe
for others. Also make sure the procedure,
work method or operating technique utilized
does not render the equipment unsafe.
Throughout this publication, and on tags and
decals affixed to the power washer, DANGER,
WARNING, CAUTION and NOTE blocks are
used to alert personnel to special instructions
about a particular operation that may be
hazardous if performed incorrectly or
carelessly. Observe them carefully. Their
definitions are as follows:
NOTE:
Notes contain additional information important
to a procedure and will be found within the
regular text of this manual.
These safety warnings cannot eliminate the
hazards that they indicate. Common sense
and strict compliance with the special
instructions while performing the action or
service are essential to preventing accidents.
(000100a)
WARNING
Consult Manual. Read and understand manual
completely before using product. Failure to
completely understand manual and product
could result in death or serious injury.
(000001)
DANGER
Indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
(000002)
WARNING
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
(000003)
CAUTION
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.

2 Owner’s Manual for Power Washer
Introduction and Safety
Safety Symbols and Meanings
Asphyxiation. Running engines produce
carbon monoxide, a colorless, odorless,
poisonous gas. Carbon monoxide, if not
avoided, will result in death or serious injury.
(000103)
DANGER
(000104)
DANGER
Electrocution. Water contact with a power
source, if not avoided, will result in death
or serious injury.
(000106)
DANGER
Fluid Injection. This machine produces
high-pressure fluid streams that can pierce
skin. Fluid injection will result in death or
serious injury.
(000105)
DANGER
Explosion and Fire. Fuel and vapors are
extremely flammable and explosive. Add fuel
in a well ventilated area. Keep fire and spark
away. Failure to do so will result in death
or serious injury.
(000110)
WARNING
Risk of Fire. Hot surfaces could ignite
combustibles, resulting in fire. Fire could
result in death or serious injury.
(000101)
WARNING
Vision Loss. Eye goggles are required to be
worn when using this machine. Failure to wear
eye goggles could result in permanent
vision loss.
(000107)
WARNING
Hearing Loss. Hearing protection is
recommended when using this machine.
Failure to wear hearing protection could
result in permanant hearing loss.
(000108)
WARNING
Hot Surfaces. When operating machine, do not
touch hot surfaces. Keep machine away from
combustibles during use. Hot surfaces
could result in severe burns or fire.
(000109)
WARNING
Risk of Fire. Verify machine has properly
cooled before installing cover and storing
machine. Hot surfaces could result in fire.
(000111)
WARNING
Moving Parts. Keep clothing, hair, and
appendages away from moving parts. Failure
to do so could result in death or serious injury.
(000112)
WARNING
Risk of Falling. Use of machine creates wet
areas and trip hazards. Be aware of work area
conditions. A fall could result in death
or serious injury.
(000114)
WARNING
Risk of Falling. Do not use this machine or
any components on elevated surfaces.
Doing so can result in a fall, serious injury,
or death.
(000113)
WARNING
Recoil Hazard. Recoil could retract unexpectedl
y
if water pressure is not properly relieved from
pump, creating kickback. Kickback could result
in death or serious injury.
(000100a)
WARNING
Consult Manual. Read and understand manual
completely before using product. Failure to
completely understand manual and product
could result in death or serious injury.
(000115)
WARNING
Moving Parts. Do not wear jewelry when
starting or operating this product. Wearing
jewelry while starting or operating this product
could result in death or serious injury.
(000117)
WARNING
Do not aim spray gun at people, animals,
electrical devices,or fragile items.
Keep out of reach of children.
Death or serious injury could result.
WARNING
Environmental Hazard. Always recycle batteries at an
official recycling center in accordance with all local
laws and regulations. Failure to do so could result in
environmental damage, death or serious injury.
(000228)
(000244)
WARNING
Personal Injury / Equipment Damage. Place wand in
holster and verify that handle is locked into place
before moving. Failure to do so could result in death,
serious injury, or equipment damage.

General Information and Setup
Owner’s Manual for Power Washer 3
Section 2 General Information and Setup
Know Your Power Washer
Read this manual thoroughly before
assembling and operating this unit. Save this
manual for future and immediate reference.
Replacement owner’s manuals are available
at www.generac.com.
Emissions Information
The United States Environmental Protection
Agency (US EPA) (and California Air
Resources Board (CARB), for engines/
equipment certified to California standards)
requires that this engine/equipment complies
with exhaust and evaporative emissions
standards. Locate the emissions compliance
decal on the engine to determine applicable
standards. For emissions warranty
information, please reference the included
emissions warranty. It is important to follow
the maintenance specifications in the manual
to ensure that the engine complies with the
applicable emissions standards for the
duration of the product’s life.
Remove Contents from Carton
1. Open carton completely by cutting each
corner from top to bottom.
2. Remove and verify carton contents prior to
assembly. Carton contents should contain
one each of the following:
•MainUnit
• Handle Assembly
• High-pressure Hose
• Siphon Tube & Filter
• Spray Gun
•Lance
•Oil
• Parts Bag (includes):
– Gun and Hose Hook Wireforms with
Screws, Nuts, and Allen Wrench
– Owner’s Manual
– Owner’s Registration Card
– Bag of Colored Nozzles
– Filter Screen* (*Factory installed on
axial cam pumps)
3. Call Generac Customer Service at 1-888-
GENERAC (1-888-436-3722) with the unit
model and serial number for any missing
carton contents.
4. Record model, serial number, and date of
purchase on front cover of this manual.
Assembly
Call Generac Customer Service at 1-888-
GENERAC (1-888-436-3722) for any
assembly issues or concerns. Please have
model and serial number available.
1. See Figure 2-1. Place handle (A) onto
handle supports (B). Push in latch buttons
(C) and allow handle to slide into position.
Button will lock handle into place.
Figure 2-1. Insert Handle
2. See Figure 2-2. Install gun and hose hooks
with provided fasteners. Tighten securely.
Figure 2-2. Install Gun and Hose Hooks
3. See Figure 2-3. Insert and snap nozzles
into spaces provided in handle.
Figure 2-3. Insert Nozzles
(000100a)
WARNING
Consult Manual. Read and understand manual
completely before using product. Failure to
completely understand manual and product
could result in death or serious injury.
(000100a)
WARNING
Consult Manual. Read and understand manual
completely before using product. Failure to
completely understand manual and product
could result in death or serious injury.
001528
A
C
B
001683
001531

General Information and Setup
4 Owner’s Manual for Power Washer
4. See Figure 2-4. Attach siphon tube to
siphon tube outlet (A).
Figure 2-4. Attach Siphon Tube
Add Engine Oil
Unit is shipped with no oil in the
crankcase. Add engine oil before starting.
See Engine Oil Recommendations.
1. Place power washer on a level surface.
2. Verify oil fill area is clean.
3. Remove oil fill cap and wipe dipstick clean.
Figure 2-5. Remove Dipstick
4. Add recommended engine oil.
NOTE: Some units have more than one oil fill
location. It is only necessary to use one oil fill
point.
5. Thread dipstick into oil filler neck. Oil level
is checked with dipstick fully inserted.
6. See Figure 2-6. Remove dipstick and verify
oil level is within safe operating range.
Figure 2-6. Safe Operating Range
7. Install oil fill cap/dipstick and hand-tighten.
Check Pump Oil (Triplex Units)
NOTE: The axial cam and Cat pumps are
maintenance free and do not require checking
oil.
1. Place power washer on a flat, level
surface.
2. See Figure 2-7. Clean area around oil fill
and remove vented cap/dipstick (A).
Figure 2-7. Check Pump Oil
3. See Figure 2-8. Check to confirm oil level
is between the “L” and “H” on the dipstick.
If oil is required, see Pump Oil (Triplex
Units). DO NOT OVERFILL.
4. Install oil dipstick until finger tight.
5. Clean up any spilled oil.
Figure 2-8. Pump Oil Dipstick
Fuel
Fuel requirements are as follows:
• Clean, fresh, unleaded gasoline.
• Minimum rating of 87 octane/87 AKI (91
RON).
• Up to 10% ethanol (gasohol) is acceptable.
• DO NOT use E85.
• DO NOT use a gas oil mix.
• DO NOT modify engine to run on alternate
fuels.
• Add a fuel stabilizer prior to storing.
1. Verify unit is OFF and cooled for a
minimum of two minutes prior to fueling.
2. Place unit on level ground in a well
ventilated area.
3. See Figure 2-9. Clean area around fuel
cap and remove cap slowly.
4. Slowly add recommended fuel. Do not
overfill
.
Figure 2-9. Add Recommended Fuel
001537
AA
A
000115
000116
001539
A
000268
HL
(000105)
DANGER
Explosion and Fire. Fuel and vapors are
extremely flammable and explosive. Add fuel
in a well ventilated area. Keep fire and spark
away. Failure to do so will result in death
or serious injury.
000117

General Information and Setup
Owner’s Manual for Power Washer 5
5. Install fuel cap.
NOTE: Allow spilled fuel to evaporate before
starting unit.
Water Supply
NOTE: DO NOT run unit without sufficient
water supply. Failure to follow water supply
requirements will void unit warranty.
Water supply must meet the following
requirements:
• DO NOT siphon standing water for the
water supply.
• Water temperature must be less than
100°F (38ºC).
• Water supply hose length must not exceed
50 ft (15.2 m).
• Water must be greater than 3.8 gallons per
minute (17.3 liters per minute) and no less
than 30 psi (206.8 kPa).
• DO NOT use a one-way valve, vacuum
breaker, or check valve in any part of the
water supply.
Connect Water Supply
1. Remove and discard shipping cap from
the pump water inlet.
2. Run water supply for 30 seconds prior to
connection to eliminate debris.
3. See Figure 2-10. Inspect inlet screen for
debris. Clean screen or replace as
necessary. DO NOT run power washer if
inlet screen is damaged or missing.
Figure 2-10. Inspect Inlet Screen
4. See Figure 2-11. Connect water supply
hose to pump water inlet and hand-
tighten.
.
Figure 2-11. Connect Water Supply Hose
Connect High-Pressure Hose
and Lance
1. See Figure 2-12. Connect lance to spray
gun and hand-tighten.
Figure 2-12. Connect Lance
2. Place spray gun and nozzle extension into
spray gun holder.
3. See Figure 2-13. Connect high-pressure
hose to pump. Hand tighten for threaded
connection.
Figure 2-13. Connect High-Pressure Hose
to Triplex Pump
Figure 2-14. Connect High-Pressure Hose
to Axial Pump (Hand Tight)
4. See Figure 2-15 and Figure 2-16. Connect
high-pressure hose to base of spray gun.
Hand-tighten for threaded connection.
Figure 2-15. Connect High-Pressure Hose
to Spray Gun - Quick Connect
001540
001541
000120
001542
000121
000269

General Information and Setup
6 Owner’s Manual for Power Washer
Figure 2-16. Connect High-Pressure Hose
to Spray Gun - Threaded Connection
Spray Gun
Become familiar with spray gun trigger and
locking system prior to use.
1. See Figure 2-17. With unit OFF, hold spray
gun and squeeze trigger to learn how
trigger mechanism and locking system can
be activated and deactivated.
Figure 2-17. Spray Gun (typical)
2. Turn ON the water, and squeeze the
trigger to purge the pump system of air.
3. Verify spray gun is OFF with lock engaged
before starting power washer.
Nozzles
1. See nozzle selection guide and select
correct nozzle for task.
2. See Figure 2-18. Pull back quick–connect
collar and install nozzle.
Figure 2-18. Insert Nozzle
3. Release quick-connect collar to secure
nozzle.
4. Verify nozzle is locked in place.
Blast Pressure Nozzle (Red)
MAXIMUM - Higher pressure and lower flow
for stubborn or hard to reach surface such as
second story surfaces, paint removal, oil
stains, rust removal or other stubborn
substances (tar, gum, grease, wax, etc.).
Strip Pressure Nozzle (Yellow)
MEDIUM - Higher pressure and medium flow
for removing stains on hard porous surfaces
such as concrete driveways, garage floors
and brick patios.
Clean Pressure Nozzle (Green)
GENERAL - Medium pressure and medium
flow for most all purpose cleaning such as
home siding, brick patios, wood decks,
driveways and sidewalks, garage floors, etc.
Wash Pressure Nozzle (White)
DELICATE - Lower pressure and higher flow
for gentle cleaning of cars/trucks, boats, RV’s,
patio furniture, lawn equipment, etc.
Detergent Nozzle (Black)
DETERGENT ONLY (BLACK), Only use
power washer safe detergents/soaps to help
break down stubborn dirt and grime on a
variety of surfaces.
000122
000123
000125
001396
001397
001398
001399
001400

Operation
Owner’s Manual for Power Washer 7
Section 3 Operation
Operation and Use Questions
Call Generac Customer Service at 1-888-
GENERAC (1-888-436-3722) with questions
or concerns about unit operation and
maintenance.
Before Starting Engine
Unit is shipped with no oil in the
crankcase. Add engine oil before starting.
See Engine Oil Recommendations.
1. Verify engine oil level is correct.
2. Verify fresh fuel level is correct.
3. Verify all fittings and couplers are properly
secured.
4. Verify sufficient water supply is properly
connected.
5. Verify thermal relief valve is rotated and
open to ground.
6. Verify unit is secure on level ground, with
proper clearance and is in a well ventilated
area.
Prepare Power Washer for Use
1. Place unit on level ground, within the
specified clearance required.
2. Connect appropriate water supply.
Power Washer Placement for Use
It is a violation of California Public Resource
Code, Section 4442, to use or operate the
engine on any forest-covered, brush-covered,
or grass-covered land unless the exhaust
system is equipped with a spark arrestor, as
defined in Section 4442, maintained in
effective working order. Other states or federal
jurisdictions may have similar laws.
Only operate power washer outdoors in a well
ventilated area. Never operate power washer
indoors, or in a confined space. Be aware of
building openings and ventilation systems
where exhaust may enter during use.
• Verify power washer is placed on level
ground to avoid tipping during operation.
• Only use the unit outdoors. Verify exhaust
gas does not enter a confined area through
windows, doors, ventilation intakes.
•SeeFigure 3-1. Keep at least 5 ft (1.5 m) of
clearance on all sides of power washer
including overhead from dwellings and
combustibles, when in use.
Figure 3-1. Five Feet of Minimum
Clearance
Transporting/Tipping of the Unit
Do not operate, store or transport the unit at
an angle greater than 15 degrees.
Power Washer Start-Up
NOTE: DO NOT run power washer without a
sufficient water supply turned ON. Damage to
equipment resulting from failure to follow this
instruction will void warranty.
1. Connect a sufficient water supply.
2. See Figure 3-2. Move fuel valve lever (A)
to ON position.
3. Move choke lever (B) to CLOSED position.
NOTE: For warm engine, verify choke lever is
in OPEN position.
Figure 3-2. Fuel Valve and Choke
4. See Figure 3-2. Move the throttle lever (C -
if equipped) to the FULL (rabbit) position.
Asphyxiation. Running engines produce
carbon monoxide, a colorless, odorless,
poisonous gas. Carbon monoxide, if not
avoided, will result in death or serious injury.
(000103)
DANGER
(000110)
WARNING
Risk of Fire. Hot surfaces could ignite
combustibles, resulting in fire. Fire could
result in death or serious injury.
(000108)
WARNING
Hot Surfaces. When operating machine, do not
touch hot surfaces. Keep machine away from
combustibles during use. Hot surfaces
could result in severe burns or fire.
001554
(000244)
WARNING
Personal Injury / Equipment Damage. Place wand in
holster and verify that handle is locked into place
before moving. Failure to do so could result in death,
serious injury, or equipment damage.
001555
A
B
C

Operation
8 Owner’s Manual for Power Washer
5. See Figure 3-3. Turn engine switch ON.
Figure 3-3. Engine Switch
6. Relieve spray gun pressure.
7. Place foot on unit to secure unit from
movement when pulling recoil.
8. See Figure 3-4. Firmly grasp the recoil
handle. Pull slowly until resistance is felt.
Then pull rapidly to start engine.
After engine-start attempt, if engine fails to
run, point spray gun in safe direction, and
squeeze spray gun trigger to release high
pressure.
Figure 3-4. Engine Recoil
9. Return recoil handle slowly. DO NOT let
recoil snap back against recoil housing.
10. See Figure 3-2. When engine starts, slowly
move choke lever (B) to OPEN position as
engine warms. If engine falters, move
choke lever to CLOSE position, then to
OPEN position.
11. Move the throttle lever (C - if equipped)
toward the High position to adjust engine
speed.
• If engine fails to start after six pulls, move
choke lever (B) to OPEN position, and
repeat steps 6 through 9.
Power Washer Shut Down
IMPORTANT: Spray gun traps high-pressure
water, even when engine is stopped and water
is disconnected. Always point spray gun in
safe direction, and squeeze spray gun trigger
to release high-pressure. Engage trigger lock
when not in use.
1. Release spray gun trigger.
2. Turn engine switch OFF.
3. Turn water supply OFF.
4. Squeeze spray gun trigger and release
high-pressure water.
5. Engage trigger lock.
Apply Detergent
NOTE: DO NOT use caustic liquid with power
washer. Use ONLY power washer safe
detergents. Follow all manufacturer's
instructions on the detergent label.
Apply detergent as follows:
1. Verify Black detergent nozzle is installed.
NOTE: Detergent cannot be applied with high-
pressure nozzle (Yellow, White, Green or
Red). Only use black nozzle with detergent.
OFF
ON
000128
(000101)
WARNING
Vision Loss. Eye goggles are required to be
worn when using this machine. Failure to wear
eye goggles could result in permanent
vision loss.
(000113)
WARNING
Recoil Hazard. Recoil could retract unexpectedly
if water pressure is not properly relieved from
pump, creating kickback. Kickback could result
in death or serious injury.
(000117)
WARNING
Do not aim spray gun at people, animals,
electrical devices,or fragile items.
Keep out of reach of children.
Death or serious injury could result.
000129
(000106)
DANGER
Fluid Injection. This machine produces
high-pressure fluid streams that can pierce
skin. Fluid injection will result in death or
serious injury.
(000110)
WARNING
Risk of Fire. Hot surfaces could ignite
combustibles, resulting in fire. Fire could
result in death or serious injury.
(000108)
WARNING
Hot Surfaces. When operating machine, do not
touch hot surfaces. Keep machine away from
combustibles during use. Hot surfaces
could result in severe burns or fire.
(000106)
DANGER
Fluid Injection. This machine produces
high-pressure fluid streams that can pierce
skin. Fluid injection will result in death or
serious injury.
(000106)
DANGER
Fluid Injection. This machine produces
high-pressure fluid streams that can pierce
skin. Fluid injection will result in death or
serious injury.
(000117)
WARNING
Do not aim spray gun at people, animals,
electrical devices,or fragile items.
Keep out of reach of children.
Death or serious injury could result.