Pacific hydrostar PACIFIC HYDROSTRAR 97005 Installation manual

GASOLINE PRESSURE WASHER
13 HP - 4,000 PSI
Model 97005
SET UP, OPERATING, AND SERVICING INSTRUCTIONS
Using an engine indoors CAN KILL YOU IN
MINUTES.
Engine exhaust contains carbon monoxide.
This is a poison you cannot see or smell.
NEVER use inside
a home or garage,
EVEN IF doors and
windows are open.
Only use OUTSIDE
and far away from
windows, doors, and
vents.
Visit our website at: http://www.harborfreight.com
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
Copyright©2007 by Harbor Freight Tools®. All rights reserved. No portion of this manual or any artwork
contained herein may be reproduced in any shape or form without the express written consent of
Harbor Freight Tools. Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described herein. Tools required for
assembly and service may not be included.
For technical questions or replacement parts, please call 1-800-444-3353.
Manual Revised 11h

Page 2SKU 97005 For technical questions, please call 1-800-444-3353.
TABLE OF CONTENTS
Important Safety Information.....................................................................3
Set-Up Precautions.....................................................................................4
Operating Precautions................................................................................4
Basic Specications...................................................................................6
Unpacking....................................................................................................7
Set-Up Instructions.....................................................................................7
Operating Instructions................................................................................8
Starting The Engine....................................................................................9
Operating Tips...........................................................................................11
Technical Specications...........................................................................14
Servicing....................................................................................................14
Troubleshooting...................................................................................17-18
Pump Parts List.........................................................................................19
Pump Assembly Diagram.........................................................................20
Engine Parts List.................................................................................21-22
Engine Assembly Diagram.......................................................................23
Frame, Lance, Hose, Wheel Parts List & Assembly Diagram...............24
Warranty Information..........................................................................25-26

Page 3SKU 97005 For technical questions, please call 1-800-444-3353.
SAVE THIS MANUAL
Keep this manual for the safety
warnings and precautions, assembly,
operating, inspection, maintenance and
cleaning procedures. Write the product’s
serial number in the back of the manual
near the assembly diagram (or month
and year of purchase if product has no
number). Keep this manual and the
receipt in a safe and dry place for future
reference.
IMPORTANT SAFETY
INFORMATION
In this manual, on the labeling,
and all other information
provided with this product:
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.
DANGER indicates
a hazardous
situation which, if not
avoided, will result in death or
serious injury.
WARNING
indicates a
hazardous situation which, if
not avoided, could result in
death or serious injury.
CAUTION, used
with the safety
alert symbol, indicates a
hazardous situation which, if
not avoided, could result in
minor or moderate injury.
NOTICE is used to
address practices
not related to personal injury.
CAUTION, without
the safety alert
symbol, is used to address
practices not related to
personal injury.
WARNING! Read all instructions.
Failure to follow all instructions
listed below may result in re,
serious injury and/or DEATH.
The warnings and precautions
discussed in this manual cannot
cover all possible conditions and
situations that may occur. It must
be understood by the operator that
common sense and caution are
factors which cannot be built into
this product, but must be supplied
by the operator.
SAVE THESE INSTRUCTIONS
Safety warnings continue on next page.
DANGER
WARNING
CAUTION
NOTICE
CAUTION

Page 4SKU 97005 For technical questions, please call 1-800-444-3353.
SET UP PRECAUTIONS
Gasoline fuel and fumes are1.
ammable, and potentially explosive.
Use proper fuel storage and handling
procedures. Do not store fuel or
other ammable materials nearby.
Have multiple ABC class re 2.
extinguishers nearby.
This equipment may not have a3.
spark arresting mufer included. A
spark arresting mufer is required
by law in California, on some US
Forest Service land, and possibly in
other areas or situations. Install an
approved spark arrestor before use
if legally required or if engine is to
be used near grass, brush, forests,
crops, or any other ammable
materials.
Set up and use only on a at, level, 4.
well-ventilated surface.
Wear ANSI-approved safety goggles,5.
heavy-duty work gloves, and dust
mask/respirator during set up.
Use only oil and fuel recommended6.
in the “Specications” section of this
manual.
OPERATING PRECAUTIONS
1. CARBON MONOXIDE
HAZARD
Using an engine indoors
CAN KILL YOU IN
MINUTES.
Engine exhaust contains carbon
monoxide. This is a poison you
cannot see or smell.
NEVER use inside a home or garage,
EVEN IF doors and windows are
open.
Only use OUTSIDE and far away
from windows, doors, and vents.
Keep children away from the2.
equipment, especially while it is
operating.
Do not leave the equipment3.
unattended when it is running. Turn
off the equipment (and remove safety
keys, if available) before leaving the
work area.
Wear ANSI-approved safety goggles4.
and hearing protection during use.
People with pacemakers should5.
consult their physician(s) before
use. Electromagnetic elds in close
proximity to a heart pacemaker could
cause pacemaker interference
or pacemaker failure. Caution is

Page 5SKU 97005 For technical questions, please call 1-800-444-3353.
necessary when near the engine’s
magneto or recoil starter.
Use only accessories that are6.
recommended by Harbor Freight
Tools for your model. Accessories
that may be suitable for one piece of
equipment may become hazardous
when used on another piece of
equipment.
Do not operate in explosive7.
atmospheres, such as in the
presence of ammable liquids, gases,
or dust. Gasoline-powered engines
may ignite the dust or fumes.
Stay alert, watch what you are8.
doing and use common sense when
operating a piece of equipment. Do
not use a piece of equipment while
tired or under the inuence of drugs,
alcohol or medication.
Do not overreach. Keep proper9.
footing and balance at all times.
This enables better control of the
equipment in unexpected situations.
Use this equipment with both hands10.
only. Using equipment with only
one hand can easily result in loss of
control.
Dress properly. Do not wear loose11.
clothing or jewelry. Keep hair,
clothing and gloves away from
moving parts. Loose clothes, jewelry
or long hair can be caught in moving
parts.
Parts, especially exhaust system12.
components, get very hot during use.
Stay clear of hot parts.
Do not cover the engine or equipment13.
during operation.
Keep the equipment, its engine, and14.
surrounding area clean at all times.
Use the equipment, accessories, etc.,15.
in accordance with these instructions
and in the manner intended for the
particular type of equipment, taking
into account the working conditions
and the work to be performed. Use
of the equipment for operations
different from those intended could
result in a hazardous situation.
Do not operate the equipment with16.
known leaks in the engine’s fuel
system.
This product contains or, when17.
used, produces a chemical known
to the State of California to cause
cancer and birth defects or other
reproductive harm. (California Health
& Safety Code § 25249.5, et seq.)
When spills of fuel or oil occur, they18.
must be cleaned up immediately.
Dispose of uids and cleaning
materials as per any local, state,
or federal codes and regulations.
Store oil rags in a bottom-ventilated,
covered, metal container.
Keep hands and feet away from19.
moving parts.
Before use, check for misalignment20.
or binding of moving parts, breakage
of parts, and any other condition
that may affect the equipment’s
operation. If damaged, have the
equipment serviced before using.
Many accidents are caused by poorly
maintained equipment.
Use the correct equipment for the21.
application. Do not modify the
equipment and do not use the

Page 6SKU 97005 For technical questions, please call 1-800-444-3353.
equipment for a purpose for which it
is not intended.
Never operate the Pressure Washer22.
using a pulsing action. Pulsing is
the repeated and rapid ON and
OFF operation of the Trigger. This
action could result in the failure of
components and connections that are
under pressure.
This is a clean, cold water Pressure23.
Washer. The working temperature
range must be between 41°
Fahrenheit and 104° Fahrenheit.
The water supply pressure must not
exceed 58 PSI and must be clean
and free of any abrasive particles or
corrosive contaminates.
Do not direct the water jet at live24.
electrical equipment or the Pressure
Washer itself.
Do not direct the water jet at25.
yourself, others or pets.
Do not use the Pressure Washer to26.
pump gasoline, kerosene, or any
other ammable or corrosive liquids.
Do not leave the Pressure Washer27.
unattended while the machine is
running.
Never allow the Pressure Washer to28.
run for more than two minutes with
the Spray Gun in its closed position.
Do not allow the Pressure Washer29.
to run dry, as this will cause serious
damage to the Seals and Pump.
WARNING:30. The brass components
of this product contain lead, a
chemical know to the State of
California to cause birth defects (or
other reproductive harm). California
Health & Safety Code 25249.5, et
seq.
Always ensure all water pressure is31.
released and the Pressure Washer
is turned off before attempting to
disconnect any Hoses or Connectors.
This Pressure Washer is rated for32.
domestic use only and should not be
used for professional or commercial
purposes.
Use caution when cleaning a vehicle33.
to prevent damaging the nish with a
high pressure water stream.
SERVICE PRECAUTIONS
Before service, maintenance, or1.
cleaning:
Turn the engine switch to itsa.
“OFF” position.
Allow the engine to completelyb.
cool.
Then, remove the spark plugc.
wire(s) from the spark plug(s).
Keep all safety guards in place and in2.
proper working order. Safety guards
include mufer, air cleaner, mechani-
cal guards, and heat shields, among
other guards.
Do not alter or adjust any part of3.
the equipment or its engine that is
sealed by the manufacturer or dis-
tributor. Only a qualied service
technician may adjust parts that
may increase or decrease gov-
erned engine speed.
Wear ANSI-approved safety goggles,4.
heavy-duty work gloves, and dust
mask/respirator during service.

Page 7SKU 97005 For technical questions, please call 1-800-444-3353.
Maintain labels and nameplates on5.
the equipment. These carry impor-
tant information. If unreadable or
missing, contact Harbor Freight Tools
for a replacement.
Have the equipment serviced by a6.
qualied repair person using only
identical replacement parts. This will
ensure that the safety of the equip-
ment is maintained. Do not attempt
any service or maintenance proce-
dures not explained in this manual
or any procedures that you are un-
certain about your ability to perform
safely or correctly.
Store equipment out of the reach of7.
children.
Follow scheduled engine and equip-8.
ment maintenance.
Refueling:
Do not smoke, or allow sparks,1.
ames, or other sources of ignition
around the equipment, especially
when refuelling.
Do not rell the fuel tank while the 2.
engine is running or hot.
Do not ll fuel tank to the top. Leave 3.
a little room for the fuel to expand as
needed.
Refuel in a well-ventilated area only.4.
SAVE THESE
INSTRUCTIONS.
BASIC SPECIFICATIONS
Fuel
Type 89+ octane unleaded gasoline
Capacity 1.7 Gallons
Engine
Oil
Type SAE 25W (above 32° F)
SAE 15W-40 (at 32° F or below)
Capacity 37.2 Ounces (1.1L)
Pump Oil
Type SAE 25W (above 32° F)
SAE 15W-40 (at 32° F or below)
Capacity 15.2 Ounces (0.45L)
Note: Additional specications found in the
TECHNICAL ENGINE SPECIFICATIONS
chart in this manual.
The emission control system for this
engine is warranted for standards set by
the U.S. Environmental Protection Agency
and by the California Air Resources Board
(also known as CARB-Phase II). For
warranty information, refer to the last
pages of this manual.
At high altitudes, the engine’s
carburetor, governor, and any other parts
that control the fuel-air ratio will need to be
adjusted by a qualied mechanic to allow
efcient high-altitude use and to prevent
damage to the engine and any other
devices used with this product.
REV 09b

Page 8SKU 97005 For technical questions, please call 1-800-444-3353.
UNPACKING
When unpacking, check to make sure
that the item is intact and undamaged. If
any parts are missing or broken, please
call Harbor Freight Tools at
1-800-444-3353 as soon as possible.
SET UP INSTRUCTIONS
Read the ENTIRE IMPORTANT
SAFETY INFORMATION
section at the beginning of this
manual including all text under
subheadings therein before set
up or use of this product.
Risk of accidental
starting; resulting
in serious personal injury.
Turn the Power Switch of the
equipment to its “OFF”
position, wait for the engine to
cool, and unplug the spark
plug wire(s) before
assembling or making any
adjustments to the equipment.
Note: For additional information regarding
the parts listed in the following pages,
refer to the Assembly Diagram near
the end of this manual.
Assembly
This equipment may not have a1.
spark arresting mufer included. A
spark arresting mufer is required
by law in California, on some US
Forest Service land, and possibly in
other areas or situations. Install an
approved spark arrestor before use
if legally required or if engine is to
be used near grass, brush, forests,
crops, or any other ammable
materials.
HANDLE (10)
FRAME (2)
BOLTS/NUTS
(11, 12)
FIGURE A
2. To attach the Handle (10) to the
Frame (2), insert the lower portion
of the Handle into the Frame. Then
secure the Handle to the Frame,
using two Bolts and two Nuts.
(See Figure A.)
WHEEL (1)
LOCK NUT (13)
FIGURE B
3. To attach the Wheels (1), slide a
Wheel onto each end of the Axle
located at the front of the Frame (2).
Make sure air valve on wheel faces
outward. Then secure the Wheels to
the Axle, using one Lock Nut (13) for
each Wheel. (See Figure B.)
WARNING

Page 9SKU 97005 For technical questions, please call 1-800-444-3353.
OUTLET CONNECTOR
(55)
DETERGENT HOSE
HOSE (8)
INLET CONNECTOR
(59)
HOSE (8)
SPRAY GUN (6)
NOZZLE (9)
FIGURE C
4. Attach the Hose (8) to the Spray Gun
(6). Connect the other end of the
Hose to the Outlet Connector (55).
Connect a garden hose to the Inlet
Connector (59). Insert the Detergent
Hose into an approved container of
detergent. Then attach the desired
Nozzle (9) to the Spray Gun.
(See Figure C.)
OPERATING INSTRUCTIONS
Engine Controls
ENGINE
SWITCH
(3)
FIGURE D
CHOKE (41)
FUEL
VALVE
(104)
FIGURE E
THROTTLE
(96)
FIGURE F
STARTER HANDLE (1)
FIGURE G

Page 10SKU 97005 For technical questions, please call 1-800-444-3353.
Starting the Engine
Inspect engine and equipment
looking for damaged, loose, and
missing parts before set up and
starting. If any problems are
found, do not use equipment until
xed properly.
Checking Engine Oil Level
CAUTION! Your Warranty is VOID if the
engine’s Crankcase (13) is not properly
lled with oil before each use. Before
each use, check the oil level. Do not
run the engine with low or no engine
oil. Running the engine with no or low
engine oil WILL permanently damage the
engine.
FIGURE H
DIPSTICK (89)
1. Remove the dipstick and wipe it off with
a clean rag. (See Figure H.)
Reinsert the dipstick completely and2.
remove it to check the oil level. The oil
level should be between the high and
low marks on the dipstick.
(See Figure H.)
If the oil level is below the low mark add3.
the appropriate type of oil until the oil
level is between the high and the low
marks. (See Figure H.)
Oil type:
32° F or above = SAE 25W
Below 32° F = SAE 15W-40
Replace the Oil Dipstick.4.
(See Figure H.)
CAUTION! Do not run the engine with too
little or too much oil. The engine will be
permanently damaged.
Checking Fuel Level
WARNING! To prevent re,
shut the engine off and wait for
it to cool before adding fuel. Do
not smoke. Avoid refueling if
other equipment (which may
create sparks) is operating in the
immediate vicinity.
To ll the Fuel Tank (101), unscrew and 1.
remove the Fuel Tank Cap (109). (See
Figure I.)
FUEL TANK (101)
FUEL TANK CAP (109) FUEL TANK FILTER (108)
FIGURE I
2. Check to make sure the Fuel Tank
Filter (108) is free of dirt and debris.
If necessary, remove and clean the
Filter. Then replace the Filter.
(See Figure I.)
REV 09b, 09i

Page 11SKU 97005 For technical questions, please call 1-800-444-3353.
Mix fuel stabilizer (not included) with3.
89 octane (or better) unleaded gaso-
line according to fuel stabilizer direc-
tions.
Fill the Fuel Tank (101) to about 14.
inch under the lip of the gasoline tank
with the stabilized unleaded gasoline
mixture. (See Figure I.)
Then replace the Fuel Tank Cap5.
(109). (See Figure I.)
Checking Pump Oil Level
CAUTION! Your Warranty is VOID if the
Pump’s Housing (13) is not properly
lled with oil before each use. Before
each use, check the oil level. Do not
run the Pump with low or no oil. Run-
ning the Pump with no or low oil WILL
permanently damage the Pump.
PUMP OIL GAUGE (26)
OIL LEVEL WINDOW (28)
(PROPER OIL LEVEL) OIL DRAIN PLUG (3)
FIGURE J
1. Remove the Oil Gauge (26) and wipe
it off with a clean rag.
(See Figure J.)
Reinsert the Oil Gauge (26) com-2.
pletely and remove it to check the
oil level. The oil level should be
between the high and low marks on
the Gauge. Also, the proper oil level
can be visually observed through the
oil Level Window (28). The proper
oil level should appear midway in the
Window. (See Figure J.)
If the oil level is below the low mark
add the appropriate type of oil until
the oil level is between the high and
the low marks. Do not overll.
(See Figure J.)
Oil type:
32° F or above = SAE 25W
Below 32° F = SAE 15W-40
Replace the Oil Gauge.3.
(See Figure J.)
CAUTION! Do not run the Pump with too
little or too much oil. The Pump will
be permanently damaged.
Start Procedure
Before starting the engine:
Follow the Set Upa.
Instructions to prepare the
equipment.
Inspect the equipment andb.
engine.
Fill the engine with thec.
proper amount and type of
both fuel and oil.
Note: This engine includes an automatic
low oil shutdown sensor that disables
the engine if the oil level is too low.
Read the Equipmentd.
Operation section that
follows.
Turn the engine Fuel Valve (104) to1.
its “OPEN” position. (See Figure E.)
Turn the Engine Switch (3) to its ON2.
or RUN position. (See Figure D.)
REV 09b; 09i

Page 12SKU 97005 For technical questions, please call 1-800-444-3353.
Then, turn the engine Choke (41) to3.
its “CHOKE” position. Set the Choke
in the “RUN” position when starting a
warm engine. (See Figure E.)
Grasp the Starter Handle (1), and pull4.
slowly until resistance is felt. While
holding the Handle, allow the Starter
Rope to rewind slowly. Then, pull the
Starter Handle with a rapid, full arm
stroke. Once again, while holding
the Handle, allow the Rope to rewind
slowly. Repeat as necessary, until
the engine starts. (See Figure G.)
After the engine starts, and once it5.
starts to warm up, slowly move the
Choke (41) to its “RUN” position.
(See Figure E.)
Pressure Washer Operation
IMPORTANT! NEVER allow the1.
Pressure Washer to sit idle with
the Engine running for longer than
two minutes. The unit will build up
heat when it is on standby mode.
Turn on the water supply, press in on2.
the Safety on the Spray Gun (6) and
squeeze its Trigger until water ows
out of the Gun without sputtering.
This removes air from the system and
allows the unit to properly perform.
Failure to follow this procedure
can damage the Pump.
Hold the Spray Gun (6) rmly with 3.
both hands. Point the Nozzle (9) in
a safe direction. Then, disengage
the Safety and squeeze the Trigger.
Make sure to turn off the Engine
whenever the Spray Gun is not in
use. Clean the area, following the
tips contained in the “Operating
Tips” section.
When nished spraying, press in to 4.
fully engage the Safety on the Spray
Gun (6). Turn off the Engine, and
turn off the water supply. WARNING!
Do not disconnect the High Pres-
sure Hose (8) or water inlet hose
until all pressure is discharged
safely.
IMPORTANT!5. When turning off
the unit after use, high pressure
will remain inside the unit’s High
Pressure Hose (8), and the water
inlet hose. Point the Spray Gun (6) in
a safe direction and hold the Trigger
down for several seconds or until
water stops owing from the Spray
Gun. The High Pressure Hose and
water inlet hose can be disconnected
after the pressure is released.
Store the Pressure Washer and all6.
accessories in accordance with the
directions in the “Storage” section of
this manual.
IF ANY UNEXPECTED PROBLEMS
ARISE, PLEASE REFER TO THE “TROU-
BLESHOOTING” SECTION AT THE END
OF THIS MANUAL.
OPERATING TIPS
Adjusting The Spray Pattern
You have a choice of four different1.
color-coded Nozzles (9) giving you
different spray patterns.
0° Nozzle (colored red):2. This Noz-
zle delivers a pinpoint stream and is
extremely powerful. It covers a very
small area of cleaning. This Nozzle
should only be used on a surface that
can withstand this high pressure such
as metal or concrete. Do not use on
wood. Do not use to clean vehicles.

Page 13SKU 97005 For technical questions, please call 1-800-444-3353.
15° Nozzle (colored yellow):3. This
Nozzle delivers a powerful 15 degree
spray pattern for intense cleaning of
small areas. This Nozzle should only
be used on areas that can withstand
the high pressure from this Nozzle.
Do not use to clean vehicles.
40° Nozzle (colored white):4. This
Nozzle delivers a 40 degree spray
pattern and a less powerful stream
of water. It covers a wide area of
cleaning. This Nozzle should be
used for most general cleaning jobs
and for cleaning vehicles.
Low Pressure Nozzle (colored5.
black): This Nozzle is used to apply
chemicals or cleaning solutions. It
has the least power stream. Do not
use to clean vehicles.
NOTE:6. Before using the Pressure
Washer to clean patio paving slabs, it
is advisable to test a small area rst.
Some paving slabs are manufactured
from inferior materials and the use of
a Pressure Washer could damage the
surface.
Using the Detergent Hose
Fill a suitable container with pressure1.
washer detergent. Always follow
instructions as outlined in the
detergent manufacturer’s manual.
Most automobile detergents are a2.
combination of a detergent and a
wax solution. These tend to be a
thick viscous liquid. The viscosity
(thickness) of the detergent will
increase in cold weather. It is
recommended that this type of
detergent is diluted with warm water
before lling the container. As a
general guide, a recommended
dilution rate is 50/50. However, a trial
and error process would determine
the ideal dilution rate for a particular
detergent.
A thick, viscous detergent will not ow 3.
freely from the detergent container
and the residue will cause blockage
in the detergent ow system.
After using a detergent the entire4.
Pressure Washer system should be
thoroughly ushed out with ample
amounts of water.
If at any time the ow rate decreases, 5.
sputters, or is inconsistent, release
the Trigger of the Spray Gun (6)
and turn off the Engine. Squeeze
the Trigger to release any pressure.
Then check the Nozzle (9) of the
Spray Gun for any blockage. If
blockage is suspected, clean the
Nozzle thoroughly. If the problem still
exists, check and clean the Filter on
the Detergent Hose.
Cleaning Recommendations
Clean an inconspicuous test area1.
to help avoid damaging the surface.
Always begin with the fan spray at
a distance of about 3-5 feet from
the surface being cleaned to avoid
damaging the surface of the object.
Make sure the test area is clear of
people and water-prone delicate
objects. If a pressure washer
detergent is to be used, apply the
detergent to this area as well. After
cleaning this area, turn off the Engine
and inspect the area carefully for
any damage or discoloration. If any
damage is noted from the Nozzle
used, use a less powerful Nozzle
when cleaning the rest of the area.

Page 14SKU 97005 For technical questions, please call 1-800-444-3353.
If damage or discoloration is noted
from the detergent, do not use the
detergent when cleaning.
First, pass over the area with a light2.
cleaning. Then clean the area more
thoroughly.
For a vertical or sloped surface:3.
Wash from the top down.•
If possible, direct the stream of•
water in the same direction as the
slope towards a drainage area.
This will enable better drainage
and, therefore, better cleaning.
For a at surface:4.
If a thin layer of water accumu-•
lates on the surface, periodically
use a stream of water to direct the
water toward the drainage.
After the major cleaning is done,•
sweep the surface with the stream
of water to help direct loose debris
toward the drainage.
If detergent is to be applied, use only5.
pressure washing detergent. Other
detergents may clog or damage the
Pressure Washer. Apply the deter-
gent at low pressure. Allow the deter-
gent several minutes to sit and soak
into the work surface. This will im-
prove cleaning efciency. Make sure
to rinse off all detergent completely.
Hold the Spray Gun (6) at about a6.
45° angle and steadily sweep the
water stream back and forth. If a
severe, head-on angle is used, dirt
may imbed in the surface being
cleaned. Follow a steady, consistent
pace during cleaning. This will help
prevent stripes or discoloration
afterwards. If streaking or uneven
cleaning is noted at the end of a
project, go over the edges of the
streaks with a wide fan pattern to
help blend these lighter areas in.
If several different surfaces are to be7.
cleaned, make sure not to damage
any of the less solid surfaces while
attempting to clean the harder ones.
This is especially a concern when
cleaning tile and grout, bricks and
mortar, or stones and mortar.
If wood is being cleaned, make8.
sure not to damage it. Pressure
washed wood will usually require
resurfacing (sanding) and re-coating
with a surface protectant (wood,
stain, varnish) after it has dried. Try
to avoid leaving water on a wooden
surface, as doing so can harm the
surface.

Page 15SKU 97005 For technical questions, please call 1-800-444-3353.
TECHNICAL
SPECIFICATIONS
Engine Type
13 HP / OHV
Recoil Start
Air Cooled
3600 RPM
Displacement 390cc
Rotation viewed from PTO
(power takeoff - the output
shaft)
Counterclockwise
(Facing the Shaft)
Fuel Type 89+ octane unleaded gasoline
Capacity 1.7 Gallons
Engine
Oil
Type SAE 25W (above 32° F)
SAE 15W-40 (at 32° F or below)
Capacity 37.2 Ounces (1.1L)
Spark Plug Types LG F7RTC
Gap 0.027” to 0.031”
Engine
Approvals
California Emissions
U.S. EPA Phase II
Pump RPM 3400 RPM
Water Flow 4.0 Gal. Per Minute
Pressure
Rating 4,000 PSI
Pump Inlet
Pressure
30 PSI/4 Gal. Per Minute (Minimum)
80 PSI (Maximum)
Hose
Required 5/16” I.D.
Pump Oil Type SAE 25W (above 32° F)
SAE 15W-40 (at 32° F or below)
Capacity 15.2 Ounces (0.45L)
Water Temperature Up to 104° F / 40°C
Nozzles Included
0° (Red)
15° (Yellow)
40° (white)
Chemical (Black)
Spray Gun Type Safety Lock-Off Triggered
Handle
Hose Length 32 Ft.
Hose Fittings Quick Connect
Hose Pressure 6000 PSI Maximum
Wheel Size & Ination 4.10/3.50 Pneumatic
30 PSI (Cold)
SERVICING
Risk of serious
personal injury
from accidental starting. Turn
the Power Switch of the
equipment to its “OFF”
position, wait for the engine to
cool, and unplug the spark
plug wire(s) before performing
any inspection, maintenance,
or cleaning procedures.
Damaged equipment can fail,
causing serious personal
injury. Do not use damaged
equipment. If abnormal noise,
vibration, or excess smoking
occurs, have the problem
corrected before further use.
Maintenance Procedures
Many maintenance procedures,
including any not detailed
in this manual, will need to
be performed by a qualied
technician for safety. If you
have any doubts about your
ability to safely service the
equipment or engine, have a
qualied technician service the
equipment instead.
Engine Oil Change
CAUTION! Oil is very hot during
operation and can cause burns. Wait
for engine to cool before changing oil.
Place a drain pan (not included)1.
underneath the Crankcase’s Drain
Plug (14). (See Figure K, next
page.)
WARNING
REV 09b

Page 16SKU 97005 For technical questions, please call 1-800-444-3353.
FIGURE K
DRAIN PLUG (14)
2. Remove the Drain Plug (14) and, if
possible, tilt the Crankcase slightly to
help drain the oil out. Recycle used
oil.
Replace the Drain Plug (14) and3.
tighten it.
Rell the oil to the proper level follow-4.
ing the instructions under the “Start-
ing the Engine” section.
Air Filter Element Maintenance
FIGURE L
WING NUT (47)
AIR CLEANER COVER (51)
1. The Air Cleaner Cover (51) is held in
place by a Wing Nut (47). Remove it.
(See Figure L.)
Remove a second Wing Nut (47) and2.
its Washer (48). Then remove the Air
Filter Element (49).
For lter elements: 3.
To prevent injury from dust and
debris, wear ANSI-approved safety
goggles, NIOSH-approved dust
mask/respirator, and heavy-duty work
gloves. In a well-ventilated area
away from bystanders, stand down
wind, and use pressurized air to blow
dust out of the Air Filter Element
(49). If this does not get the Filter
reasonably clean, replace it.
Install the new lter or the cleaned 4.
lter. Secure the Air Cleaner Cover
before use.
Spark Plug Maintenance
Disconnect spark plug wire from1.
end of plug. Clean out debris from
around spark plug.
SPARK PLUG (60)
SPARK PLUG WIRE
FIGURE N
2. Using a spark plug wrench, remove
the spark plug. (See Figure N.)
Inspect the spark plug: 3.
If the electrode is oily, clean it us-
ing a clean, dry rag. If the electrode
has deposits on it, polish it using

Page 17SKU 97005 For technical questions, please call 1-800-444-3353.
emery paper. If the white insulator is
cracked or chipped, the spark plug
needs to be replaced.
When installing a new spark plug, ad-4.
just the plug’s gap to the specication
on the Technical specication chart.
Do not pry against the electrode, the
spark plug can be damaged.
Install the new spark plug or the5.
cleaned spark plug into the engine.
Then re-attach the Spark Plug Wire.

Page 18SKU 97005 For technical questions, please call 1-800-444-3353.
TROUBLESHOOTING
Problem Possible Causes Probable Solutions
Engine will not start FUEL RELATED:
No fuel in tank or fuel valve closed.1.
Choke not in start position,2.
especially with cold engine.
Low quality or deteriorated, old3.
gasoline.
Carburetor not primed.4.
Dirty fuel passageways blocking5.
fuel ow.
Carburetor needle stuck. Fuel can6.
be smelled in the air.
Too much fuel in chamber. This can7.
be caused by the carburetor needle
sticking.
FUEL RELATED:
Fill fuel tank and open fuel valve.1.
Move choke to start position if2.
engine is cold.
Use only fresh 89+ octane3.
unleaded gasoline.
Prime carburetor by pressing4.
priming bulb approximately three
times.
Clean out passageways using5.
fuel additive. Heavy deposits may
require further cleaning.
Gently6. tap side of carburetor oat
chamber with screwdriver handle.
Turn choke to run position.7.
Remove spark plug and pull the
start handle several times to air out
the chamber. Reinstall spark plug
and set choke to start position.
IGNITION (SPARK) RELATED:
Spark plug wire not connected1.
securely.
Spark plug electrode wet or dirty.2.
Incorrect spark plug gap.3.
Spark plug wire broken.4.
Incorrect spark timing or faulty5.
ignition system.
IGNITION (SPARK) RELATED:
Connect spark plug wire properly.1.
Clean spark plug.2.
Correct spark plug gap.3.
Replace spark plug wire.4.
Have qualied technician diagnose/5.
repair ignition system.
COMPRESSION RELATED:
Cylinder not lubricated. Problem1.
after long storage periods.
Loose or broken spark plug.2.
(Hissing noise will occur when
trying to start.)
Loose cylinder head or damaged3.
head gasket. (Hissing noise will
occur when trying to start.)
Engine valves or tappets4.
misadjusted or stuck.
COMPRESSION RELATED:
Pour tablespoon of oil into spark1.
plug hole. Crank engine a few
times and try to start again.
Tighten spark plug. If that does2.
not work, replace spark plug. If
problem persists, may have head
gasket problem, see #3.
Tighten head. If that does not3.
remedy problem, replace head
gasket.
Adjust valve clearance. If that does4.
not work, clean or replace valves/
tappets.
Follow all safety precautions whenever diagnosing or servicing the
equipment or engine.

Page 19SKU 97005 For technical questions, please call 1-800-444-3353.
TROUBLESHOOTING
Problem Possible Causes Probable Solutions
Engine misres Spark plug wire loose.1.
Incorrect spark plug gap or2.
damaged spark plug.
Defective spark plug wire.3.
Old or low quality gasoline.4.
Incorrect compression.5.
Check wire connections.1.
Re-gap or replace spark plug.2.
Replace spark plug wire.3.
Use only fresh 89+ octane4.
unleaded gasoline.
Diagnose and repair compression.5.
(Use Engine will not start:
COMPRESSION RELATED
section.)
Engine stops
suddenly
Low oil shutdown.1.
Fuel tank empty or full of impure or2.
low quality gasoline.
Defective fuel tank cap creating3.
vacuum, preventing proper fuel
ow.
Faulty magneto.4.
Fill engine oil to proper level.1.
Check engine oil before EVERY
use.
Fill fuel tank with fresh 89+ octane2.
unleaded gasoline.
Test/replace fuel tank cap.3.
Have qualied technician service 4.
magneto.
Engine knocks Old or low quality gasoline.1.
Engine overloaded.2.
Incorrect spark timing, deposit3.
buildup, worn engine, or other
mechanical problems.
Fill fuel tank with fresh 89+ octane1.
unleaded gasoline.
Do not exceed equipment’s load2.
rating.
Have qualied technician diagnose 3.
and service engine.
Engine backres Impure or low quality gasoline.1.
Engine too cold.2.
Intake valve stuck or overheated3.
engine.
Fill fuel tank with fresh 89+ octane1.
unleaded gasoline.
Use cold weather fuel and oil2.
additives to prevent backring.
Have qualied technician diagnose 3.
and service engine.
Follow all safety precautions whenever diagnosing or servicing the
equipment or engine.

Page 20SKU 97005 For technical questions, please call 1-800-444-3353.
PLEASE READ THE FOLLOWING
CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR
HAS PROVIDED THE PARTS LISTANDASSEMBLY
DIAGRAM IN THIS MANUAL AS A REFERENCE
TOOL ONLY. NEITHER THE MANUFACTURER OR
DISTRIBUTOR MAKES ANY REPRESENTATION
OR WARRANTY OF ANY KIND TO THE BUYER
THAT HE OR SHE IS QUALIFIED TO MAKE ANY
REPAIRS TO THE PRODUCT, OR THAT HE OR
SHE IS QUALIFIED TO REPLACE ANY PARTS OF
THE PRODUCT. IN FACT, THE MANUFACTURER
AND/OR DISTRIBUTOR EXPRESSLY STATES
THATALL REPAIRS AND PARTS REPLACEMENTS
SHOULD BE UNDERTAKEN BY CERTIFIED AND
LICENSED TECHNICIANS, AND NOT BY THE
BUYER. THE BUYER ASSUMES ALL RISK AND
LIABILITYARISING OUT OF HIS OR HER REPAIRS
TO THE ORIGINAL PRODUCT OR REPLACEMENT
PARTS THERETO, OR ARISING OUT OF HIS OR
HER INSTALLATION OF REPLACEMENT PARTS
THERETO.
PUMP PARTS LIST
Part Description Q’ty
1 Screw (M6 x 16) 10
2 Spring Washer (#6) 24
3 Oil Drain Plug 2
4 O-Ring (13.2 x 2.65) 3
5 Back Cover 1
6 Seal 1
7 Cover 1
8 O-Ring (47.5 x 1.8) 1
9 Bolt (M8 x 16) 1
10 Spring Washer (#8) 5
11 Gasket (#8) 1
12 Bearing (304) 1
13 Housing 1
14 Pin 3
15 Plunger 3
16 Oil Seal 3
17 Water Block Ring 3
18 Connecting Rod 3
19 Crank Shaft 1
20 Bearing (NK140/20) 1
21 Retaining Ring (#40) 1
22 Seal Ring (38 x 58 x 8) 1
Part Description Q’ty
23 O-Ring (50 x 2.65) 1
24 Connecting Flange 1
25 Screw (M8 x 25) 4
26 Oil Gauge 1
27 Plastic Washer (20 x 15.8 x 1) 1
28 Oil Level Window 1
29 Screw (M6 x 55) 8
30 O-Ring (11.8 x 1.8) 6
31 Valve Seat 6
32 Valve Plate 6
33 Valve Spring 6
34 Valve Jacket 6
35 Bulkhead 4
36 O-Ring (15 x 1.8) 3
37 Valve Seat 1
38 O-Ring (11.2 x 1.8) 1
39 Unload Valve 1
40 Detergent Injection Connector 1
41 O-Ring (4.5 x 1.8) 1
42 Steel Ball (5.5) 1
43 Spring 1
44 O-Ring (24 x 1.8) 3
45 Subsidiary Seal Ring Seat 3
46 Subsidiary Seal Ring 3
47 Main Seal Ring Seat 3
48 V-Seal Ring 3
49 V-Compaction Ring 3
50 Pump Body 1
51 O-Ring (4 x 2.65) 1
52 Check Valve Core 1
53 Check Valve Spring 1
54 O-Ring (12.5 x 1.8) 1
55 Outlet Connector 1
56 Screw Jacket 1
57 Nut 1
58 Filter 1
59 Inlet Connector 1
60 Plastic Gasket 1
61 Thermal Protection 1
62 Plunger 2
IMPORTANT:
When ordering Pump parts,
make sure to specify
“PUMP”
and the part number.
(i.e., “PUMP” Part #1, Screw)