Pacific hydrostar 95618 Installation manual

6 HP Gas Pressure Washer
Model 95618
SET UP AND OPERATING INSTRUCTIONS
Diagrams within this manual may not be drawn proportionally.
Due to continuing improvements, actual product may differ slightly from the product described herein.
Distributed exclusively by Harbor Freight Tools®.
3491 Mission Oaks Blvd., Camarillo, CA 93011
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.
For technical questions or replacement parts, please call 1-800-444-3353.

SKU 95618 For technical questions please call 1-800-444-3353 Page 2
Specications
Gas Engine 6HP OHV Mitsubishi Engine, 3600 RPM, Recoil Start, Uses Unleaded Fuel,
20 Oz. Engine Oil Capacity, 8.3 Gal. Fuel Capacity (3.8L).
Environmental Approved by EPA (Environmental Protection Agency)
Approved by CARB (California Air Resources Board)
Pressure Washer 2800 PSI Rated, Cast Iron Cylinder Sleeve, Brass Axial Pump
Pump Dimensions 23-5/8”L x 19-½”W x 36-¾”T
Washer Gun Safety Trigger Activated; for cold water use only.
Water Output 2.5 Gallons per Minute
High Pressure Hose 27 Foot Long High Pressure Hose
Cart and Wheels Built in Cart with 8”D x 2” Wheels
Features Standard Garden Hose Connector for Water Supply
Thermal Overload Protection and Unloader Valve on Pressure Washer
Save This Manual
You will need the manual for the safety warnings and precautions, assembly in-
structions, operating and maintenance procedures, parts list and diagram. Keep
your invoice with this manual. Write the invoice number on the inside of the front
cover. Keep the manual and invoice in a safe and dry place for future reference.
Safety Warnings and Precautions
WARNING: When using tool, basic safety precautions should always be fol-
lowed to reduce the risk of personal injury and damage to equipment. Read
and adhere to all warnings and safety precautions before use.
Read all instructions before using this tool!
1. Carbon Monoxide Hazard. Operate pressure washer in well
ventilated area only. Carbon Monoxide is created when engine is
running and is a DEADLY gas when inhaled. Carbon Monoxide is a
colorless, odorless gas. Early signs of Carbon Monoxide poisoning
resemble Flu symptoms such as headache, dizziness or nausea. If you
notice these signs, turn off engine and immediately move to a well ventilated
area.
2. Fire Hazard. Do not ll gas tank when engine is running or hot. Do
not operate engine near spilled gasoline. Clean spilled gasoline
before starting engine. Do not store or handle gasoline near pilot
light, electrical equipment or open ame. Do not smoke near
gasoline. Gasoline fuel and fumes are ammable and potentially
explosive. Use proper fuel handling procedures. Always have multiple ABC
class re extinguishers in the area when handling fuel.
REV 07c

SKU 95618 For technical questions please call 1-800-444-3353 Page 3
3. Injection Hazard. The high pressure water jet produced by this tool
can cut skin or cause injury to hands or eyes. Do not allow spray to
strike you and do not spray toward people or animals. Do not spray
the tool itself or any electrical source.
4. Burn Hazard. The engine and high pressure pump become hot
during operation. Do not touch the engine or pump until they have
cooled down after use.
Keep work area clean5. . Cluttered areas invite injuries.
Observe work area conditions6. . Do not use machines or power tools in
unsafe locations. Don’t expose to rain. Keep work area well lit.
Keep children away7. . Children must never be allowed in the work area. Do
not let them handle machines, tools, gasoline or oil.
Store idle equipment8. . When not in use, tools must be stored in a dry loca-
tion to inhibit rust. Always lock up tools and keep out of reach of children.
Use the right tool for the job9. . Do not attempt to force a small tool or attach-
ment to do the work of a larger industrial tool. There are certain applications
for which this tool was designed. It will do the job better and more safely at
the rate for which it was intended. Do not modify this tool and do not use this
tool for a purpose for which it was not intended.
Dress properly10. . Do not wear loose clothing or jewelry as they can be
caught in moving parts. Protective, electrically non-conductive clothes and
non-skid footwear are recommended when working. Wear restrictive hair
covering to contain long hair.
Use eye and ear protection11. . Always wear ANSI approved impact safety
goggles, heavy rubber boots, work gloves and hearing protection during use.
During pressure washing debris can y back in your face, or into other prop-
erty, people or animals. Use extreme caution to prevent unintended spray
injury.
Do not overreach12. . Keep proper footing and balance at all times. Do not
reach over or across running machines.
Maintain tools with care13. . Keep tools maintained and clean for better and
safer performance. Follow instructions for lubricating and changing accesso-
ries. Inspect tool hoses periodically and, if damaged, have them repaired by
an qualied technician. The handles must be kept clean, dry, and free from
oil and grease at all times.
Turn OFF power14. . Turn OFF engine and water supply when not in use.

SKU 95618 For technical questions please call 1-800-444-3353 Page 4
Remove adjusting keys and wrenches15. . Check that keys and adjusting
wrenches are removed from the tool or machine work surface before turning
engine on.
Avoid unintentional starting16. . Be sure the water supply is in the Off posi-
tion when not in use. Do not carry the spray handle with your nger on the
trigger, whether or not engine is operating.
Stay alert17. . Watch what you are doing, use common sense. Do not operate
any tool when you are tired.
Take caution as some woods contain preservatives such as copper18.
chromium arsenate (CCA) which can be toxic. When high pressure
spraying extra care should be taken to avoid inhalation and minimize skin
contact.
Check for damaged parts19. . Before using any tool, any part that appears
damaged should be carefully checked to determine that it will operate prop-
erly and perform its intended function. Check for alignment and binding of
moving parts; any broken parts or mounting xtures; and any other condition
that may affect proper operation. Any part that is damaged should be prop-
erly repaired or replaced by a qualied technician. Do not use the tool if any
switch does not turn On and Off properly.
Guard against electric shock20. . Prevent water spray into any electrical
source such as a power outlet or extension cord.
Replacement parts and accessories21. . When servicing, use only identical
replacement parts. Use of any other parts will void the warranty. Only use
accessories intended for use with this tool. Approved accessories are avail-
able from Harbor Freight Tools.
Do not operate tool if under the inuence of alcohol or drugs22. . Read
warning labels on prescriptions to determine if your judgment or reexes are
impaired while taking drugs. If there is any doubt, do not operate the tool.
Maintenance23. . For your safety, service and maintenance should be per-
formed regularly by a qualied technician.
Use only Cold Water and/or pressure washer detergent as the active24.
propellant in this tool. Do not use detergents not designed for pressure
washers, caustic materials, solvents or any ammable materials in this
machine. Use of any such material can cause injury, or damage this tool or
personal property.
During use, do not allow the high pressure hose to come in contact25.
with any hot part of the engine or pump. Damage to the hose may occur
possibly causing the hose to burst or leak under high pressure.

SKU 95618 For technical questions please call 1-800-444-3353 Page 5
In case of emergency during use, immediately release the trigger on26.
the spray handle, then turn the engine off. Do not set the spray handle
down without turning off the engine. Then shut off gas supply to engine. (Re-
fer to engine manufacturer’s manual for fuel shut off procedures.)
Avoid tipping over the pressure washer.27. Only use on a level solid and
stable surface.
Never leave the engine running for more than 3 minutes without spraying.28.
Do not leave the pressure washer unattended while the engine is running.
Use tools with both hands when required.29. This tool requires the use of two
hands to maintain tool stability and keeps hands away from operating parts
of the tool.
People with pacemakers should consult their physician(s) before use.30.
Electromagnetic elds in close proximity to heart pacemaker could cause
pacemaker interference or pacemaker failure. Caution is necessary when
near engine’s magneto or recoil starter.
Never touch the water jet.31. Never touch the water jet or point it at people or
animals. Injury may result.
Clean up fuel spills immediately.32. Dispose of uids and cleaning materi-
als in accordance with local, state or federal regulations. Store oily rags in a
metal container. Store gasoline in a well ventilated, secure locker.
Do not smoke and do not allow re ame or electrical ignition sources 33.
near the pressure washer or any fuel or ammable materials.
Keep grounded electrically conductive tools and appliances away from34.
any source of ammable materials. Electrical items can cause ignition of
ammable fumes and materials.
Do not rell the fuel tank on the pressure washer while the engine is 35.
running or hot. Do not operate the pressure washer if there are any leaks in
the fuel system.
Use only the types and grades of fuel, oil and other lubricants recom-36.
mended by the engine manufacturer.
WARNING:37. The brass components of this product contain lead, a chemical
known to the State of California to cause birth defects or other reproductive
harm. (California Health and Safety Code § 25249.5, et. seq.)
The warnings, cautions, and instructions discussed in this instruction manual38.
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.

SKU 95618 For technical questions please call 1-800-444-3353 Page 6
Unpacking
When unpacking, check to make sure the parts shown in the photo below and in
the diagrams on pages 13 and 14 are included.
If any parts are missing or broken, please call Harbor Freight Tools at the number
on the cover of this manual.
REV 07d, 08a

SKU 95618 For technical questions please call 1-800-444-3353 Page 7
Checking Pump’s Oil Level
The Oil pump is lled with 80 ml of SAE 75W/90 oil at the factory. Under 1.
normal conditions there is no reason to add any oil or change the oil. It is
however recommended that the customer verify the pump’s oil level before
the initial use.
Remove the temporary white plastic Oil Plug by turning it counterclockwise.2.
Use a measuring device, like a thin wooden stick (not included), as a
dipstick. Place the stick all the way in until it touches the bottom of the
Pump’s Oil reservoir. See Figure A below.
Remove the stick and measure the amount of oil at the end of the stick.3.
There should be about one inch of oil covering the end of the stick as shown
in Figure B. Add SAE 75W/90 oil if needed.
Do not put the same oil plug into the High Pressure Pump (24). There4.
is a yellow plastic oil plug (included) that has a small breather hole in it.
That breather plug must be used whenever the Pressure Washer is used.
The white plastic plug (without the breather hole) should be used when
transporting only.
1 Inch
Figure B
Figure A
High Pressure
Pump (24)
REV 08a
measuring stick

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Assembly
Note: Please refer to the photo above and the table and diagram on pages 13
and 14 when reading this section and assembling your pressure washer.
1. Attach the Cart Handle (16) to the Cart Frame (5) as shown in the photo
below. Secure in place using the Handle Locking Knobs (23) with Flat
Washers (21) and Spring Washers (22). Tighten Securely.
2. Attach the Wheels (4) to the Cart Frame (5) using the Lock Nuts (2) and Flat
Washers (3). Press Wheel Covers (1) in place to cover axle ends.
3. Connect the High Pressure Hose (44) to the High Pressure Pump (24) by
screwing in place clockwise. Secure tightly.
4. Attach High Pressure Hose (44) to Spray Gun Handle (43) by screwing
clockwise. Tighten securely.
5. Coil the High Pressure Hose (44) and hang it on the Hose Bracket (8). Hang
the Spray Gun on the Gun Bracket (14).
6. Connect a garden hose water supply to the garden hose connector.
07d

SKU 95618 For technical questions please call 1-800-444-3353 Page 9
Using Detergent
CAUTION! To avoid injury, ONLY run pressure washer detergent through the
Detergent Suction Hose (46).
Figure A
1. Press the supplied Detergent Suction Hose (46) onto the tting on top of the
pump. Place the other end of the hose into the detergent container or bottle.
See Figure C.
High pressure Low pressure
Figure D
2. Do not dilute the detergent. The detergent sprays out at low pressure only.
Slide the Spray Nozzle out for low pressure. The pressure washer will draw
the detergent up through the Detergent Suction Hose (46) and mix the water
and detergent automatically, at about a 6% detergent 94% water ratio.
See Figure D.
07d
Figure C

SKU 95618 For technical questions please call 1-800-444-3353
Page 10
Important Guidelines for Water Supply
1. Do not leave engine running without spraying water. If engine is left
running for more than three (3) minutes without discharging water, excess
pressure can cause damage to the pump seals and / or high pressure hose.
2. The water supply provided through the garden hose must be at least
3 gallons per minute for this pressure washer to operate at maximum
level. Use only a standard 3/4” diameter garden hose for water supply,
smaller hoses may not provide enough water ow. Test your water supply
before operation by measuring the time required to ll a gallon bucket.
3. Only use clean water supply. Dirty or recycled “grey” water may contain
impurities which can damage the pump or seals. Never use corrosive or
ammable uids.
Engine Setup
Refer to the engine manufacturer’s manual for complete directions on proper
engine setup, operation and maintenance.
Before starting the engine check the engine oil level. Unscrew the Oil Cap,1.
and read the oil level on the dipstick (which is attached to the underside of
the Oil Cap). If the level is low, ll to the proper level before starting. Use
only clean, high quality engine oil meeting the engine manufacturer’s speci-
cations.
Gas Cap
Fuel Tank
Oil Cap
2. Remove Gas Cap and ll the Fuel Tank with unleaded gasoline. Do not over-
ll. Be careful not to spill gasoline. Clean any spills before starting engine.

SKU 95618 For technical questions please call 1-800-444-3353
Page 11
Operation
Pick up the Spray Gun (43) and point it in a safe direction. Squeeze the1.
Spray Gun Trigger until all internal air is released, and a steady ow of water
comes out. Then release the Spray Trigger.
Turn the Fuel Valve (D) to the open position (see engine photo below).2.
Turn the Speed Control Lever (C) all the way to the left, or fast position (see3.
photo below).
4. Move the Choke Lever (B) all the way to the left, or closed position (see photo
above).
Pull the Starting Handle (A) (shown above in photo) lightly until you feel5.
resistance. Then, pull it completely out. The engine should start up. If the en-
gine does not start after a few tries, refer to Engine Manufacturer’s Trouble-
shooting Tips. Slowly release the Starting Handle.
Adjust the Speed Control Lever (C) for the desired speed and subsequent6.
output water pressure. Open the Choke Lever (B) to the right.
Hold the Spray Gun (43) with both hands and begin spraying. Do not allow7.
the engine to run for more than three minutes without spraying.
Turning Off the Pressure Washer
Turn the Speed Control Lever (C) to the right, or stop position. The engine will1.
stop.
Turn the Fuel Valve (D) up to the left, or closed position (see photo page 9).2.
07d

SKU 95618 For technical questions please call 1-800-444-3353
Page 10
Page 12
Turn off the water supply faucet.3.
Point the nozzle in a safe direction, then press the Spray Gun Trigger Handle4.
to release water and pressure.
Disconnect the water supply hose from the Water Inlet Connector. (See5.
photo page 9).
Cleaning Recommendations
Clean an inconspicuous test area rst to 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 that
the test area is clear of people and water prone/delicate objects. If a pres-
sure washing detergent is to be used, apply the detergent to this area as
well. After cleaning this area, switch off the pressure washer and inspect the
area carefully for any damage or discoloration. If any damage is noted from
the pressure setting, use a lighter setting when cleaning the rest of the area.
If damage or discoloration is noted from the detergent, do not use it when
cleaning.
First, pass over the area with a light cleaning, and then more thoroughly clean
it.
For a vertical or sloped surface:
Wash from the top down.a.
If possible, direct the stream in the same direction as the slope towardsb.
a draining area. This will enable better drainage and therefore better
cleaning.
For a at surface:
If a thin layer of water accumulates on the surface, periodically use thea.
stream to direct this water towards the drainage.
After the major cleaning is done, sweep the surface with the stream tob.
help direct loose debris toward the drainage.
Hold the Spray Gun (43) at about a 45° angle and steadily sweep the stream
back and forth. Do not point the spray directly at the surface to be cleaned.
If a head-on angle is used, dirt may be embedded 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 be cleaned, be careful not to damage any
of the less solid surfaces while trying to clean the harder ones. This is espe-
Operation (Continued)

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Page 13
cially a concern when cleaning tile and grout, bricks and mortar, or stones
and mortar.
If wood is being cleaned, be careful not to damage it. Wood will usually
require resurfacing (sanding) and re-coat with a surface protectant (wood,
stain, varnish) after it has dried again. Try to avoid leaving water on a
wooden surface; doing so can harm the surface.
Maintenance
After each use, wipe down the entire unit with a clean cloth. Do not use solvents.1.
Store the pressure washer in a clean and dry location, away from anything2.
ammable.
If water is leaking from any connections during operation, shut down the3.
Pressure Washer and retighten all connections.
Maintain the engine regularly according to the maintenance instruc-4.
tions provided in the engine’s manual.
Check the High Pressure Pump’s oil level whenever it is serviced. If needed,5.
add SAE 75W/90 oil (80ml when full). See page 7 for instructions.
PUMP MAINTENANCE CHART*
Maintenance Type Before
Use After Use
Hours of operation
Weekly /
10 hr. 150 hr. 200 hr.
Inspect tool for damage X
Wipe off with clean, moist cloth
Check for Pump Oil and Water Leaks X X
Clean Filters X
Pump Oil Change X
Seal change and regulator/unloader/relief valve
maintenance X
Valve Change X
*Note: This maintenance Chart is intended solely as a general guide. If perfor-
mance decreases, check systems immediately. The maintenance needs of
each pump will differ depending on factors such as duty cycle, temperature,
cleanness of pumped liquid, and inlet feed conditions.
Many maintenance procedures will need to be performed by a qualied
technician.
REV 07d, 08a

SKU 95618 For technical questions please call 1-800-444-3353
Page 14
Troubleshooting
Symptom Possible Cause Solution
Engine will not
start
Gas tank empty1.
Low oil level2.
Choke is not in correct position3.
Engine throttle set too low4.
Pressure build up in pump5.
Fill gas tank1.
Add oil2.
Close choke3.
Increase throttle setting4.
Squeeze trigger to release pressure5.
Does not
produce high
pressure
Diameter of water supply hose too1.
small
Water supply is restricted2.
Not enough water supply3.
Replace garden hose with a ¾ inch hose1.
Check water supply hose for kinks, leaks,2.
or blockage
Open water faucet all the way3.
Output
pressure varies
Not enough water supply1.
Water inlet screen is clogged2.
Nozzle is clogged3.
Nozzle has mineral build up4.
Check water supply hose for kinks, leaks,1.
or blockage. Open faucet all the way
Remove inlet screen and rinse out2.
Remove nozzle and clean3.
Remove nozzle and clean with vinegar4.

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Page 14
Note: Some parts are listed and shown for illustration purposes only and are not
available individually as replacement parts.
Assembly Drawing

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Page 14
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM IN THIS
MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER NOR 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 LIABILITY ARISING 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.
Part Description QTY.
1 Wheel Cover 2
2 Locknut 2
3 Flat Washer 2
4 Wheel 2
5 Cart Frame 1
6 Spring Washer 4
7 Screw 4
8 Hose Bracket 1
9 Nut 2
10 Spring Washer 2
11 Flat Washer 2
12 Label 1
13 Screw 4
14 Gun Bracket 1
15 Screw 2
16 Cart Handle 1
17 Upper Bumper 1
18 Nut 4
19 Spring Washer 4
20 Flat Washer 4
21 Flat Washer 2
22 Spring Washer 2
23 Handle Locking Knobs 2
Part Description QTY.
24 High Pressure Pump 1
25 6HP Engine 1
26 Lock Nut 4
27 Motor Mount Plate 1
28 Lower Bumper 1
29 Left Cart Side Plate 1
30 Screw 4
31 Flat Washer 4
32 Lock Nut 2
33 Flat Washer 2
34 Foot Pad 2
35 Flat Washer 2
36 Screw 2
37 Nut 6
38 Spring Washer 6
39 Flat Washer 6
40 Right Cart Side Plate 1
41 Screw 6
42 Plug 2
43 Spray Gun 1
44 High Pressure Hose 1
45 Pin 1
46 Detergent Suction Hose 1
Parts List
07d

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Page 15
LIMITED 1 YEAR WARRANTY
Harbor Freight Tools Co. makes every effort to assure that its products
meet high quality and durability standards, and warrants to the original purchaser
that this product is free from defects in materials and workmanship for the period
of one year from the date of purchase (90 days if used by a professional contrac-
tor or if used as rental equipment). See engine manufacturer’s warranty which
covers engine. This warranty does not apply to damage due directly or indirectly,
to misuse, abuse, negligence or accidents, repairs or alterations outside our
facilities, normal wear and tear, or to lack of maintenance. We shall in no event be
liable for death, injuries to persons or property, or for incidental, contingent, spe-
cial or consequential damages arising from the use of our product. Some states
do not allow the exclusion or limitation of incidental or consequential damages,
so the above limitation of exclusion may not apply to you. THIS WARRANTY IS
EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.
To take advantage of this warranty, the product or part must be returned to
us with transportation charges prepaid. Proof of purchase date and an explana-
tion of the complaint must accompany the merchandise. If our inspection veries
the defect, we will either repair or replace the product at our election or we may
elect to refund the purchase price if we cannot readily and quickly provide you
with a replacement. We will return repaired products at our expense, but if we
determine there is no defect, or that the defect resulted from causes not within the
scope of our warranty, then you must bear the cost of returning the product.
This warranty gives you specic legal rights and you may also have other
rights which vary from state to state.
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • [phone]