Pacific hydrostar 90107 User manual

WATERFALL PUMP
3/4 HP
Model 90107
ASSEMBLY 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©2003 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.

PRODUCT SPECIFICATIONS
SAVE THIS MANUAL
You will need this manual for the safety warnings and precautions, assembly, op-
erating, inspection, maintenance and cleaning procedures, parts list and assem-
bly diagram. Keep your invoice with this manual. Write the invoice number on the
inside of the front cover. Keep this manual and invoice in a safe and dry place for
future reference.
GENERAL SAFETY RULES
WARNING!
READ AND UNDERSTAND ALL INSTRUCTIONS
Failure to follow all instructions listed below may result in
electric shock, fire, and/or serious injury.
SAVE THESE INSTRUCTIONS
WORK AREA
1. Keep your work area clean and well lit. Cluttered benches and dark areas
invite accidents.
2. Do not operate power tools in explosive atmospheres, such as in the
presence of flammable liquids, gases, or dust. Power tools create sparks
which may ignite the dust or fumes.
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ITEM DESCRIPTION
Electrical Requirements 115 VAC / 60 Hz / 3/4 HP / 3400 RPM
Maximum Flow 57.5 Gal. / 218 Liters Per Minute
Maximum Lift 32 Feet / 9.7 Meters
Dimensions 11-1/2” @ Highest Point / 5-14” Diameter
Construction Polypropylene Filter Cover / Stainless Steel Hardware
Weight 10.40 pounds

3. Keep bystanders, children, and visitors away while operating a power tool.
Distractions can cause you to lose control. Protect others in the work area from
debris such as chips and sparks. Provide barriers or shields as needed.
ELECTRICAL SAFETY
4. Grounded tools must be plugged into an outlet properly installed and
grounded in accordance with all codes and ordinances. Never remove the
grounding prong or modify the plug in any way. Do not use any adapter
plugs. Check with a qualified electrician if you are in doubt as to whether
the outlet is properly grounded. If the tools should electrically malfunction or
break down, grounding provides a low resistance path to carry electricity away
from the user.
5. Double insulated tools are equipped with a polarized plug (one blade is
wider than the other). This plug will fit in a polarized outlet only one way. If
the plug does not fit fully in the outlet, reverse the plug. If it still does not
fit, contact a qualified electrician to install a polarized outlet. Do not
change the plug in any way. Double insulation eliminates the need for the
three wire grounded power cord and grounded power supply system.
6. Avoid body contact with grounded surfaces such as pipes, radiators,
ranges, and refrigerators. There is an increased risk of electric shock if your
body is grounded.
7. Do not expose power tools to rain or wet conditions. Water entering a power
tool will increase the risk of electric shock.
8. Do not abuse the Power Cord. Never use the Power Cord to carry the tools
or pull the Plug from an outlet. Keep the Power Cord away from heat, oil,
sharp edges, or moving parts. Replace damaged Power Cords immediately.
Damaged Power Cords increase the risk of electric shock.
9. When operating a power tool outside, use an outdoor extension cord
marked “W-A” or “W”. These extension cords are rated for outdoor use, and
reduce the risk of electric shock.
PERSONAL SAFETY
10. Stay alert. Watch what you are doing, and use common sense when
operating a power tool. Do not use a power tool while tired or under the
influence of drugs, alcohol, or medication. A moment of inattention while
operating power tools may result in serious personal injury.
SKU 90107 PAGE 3

11. Dress properly. Do not wear loose clothing or jewelry. Contain long hair.
Keep your hair, clothing, and gloves away from moving parts. Loose
clothes, jewelry, or long hair can be caught in moving parts.
12. Avoid accidental starting. Be sure the Power Switch is off before plugging
in. Carrying power tools with your finger on the Power Switch, or plugging in
power tools with the Power Switch on, invites accidents.
13. Remove adjusting keys or wrenches before turning the power tool on. A
wrench or a key that is left attached to a rotating part of the power tool may result
in personal injury.
14. Do not overreach. Keep proper footing and balance at all times. Proper
footing and balance enables better control of the power tool in unexpected
situations.
15. Use safety equipment. Always wear eye protection. Dust mask, non-skid
safety shoes, hard hat, or hearing protection must be used for appropriate
conditions.
TOOL USE AND CARE
16. Use clamps (not included) or other practical ways to secure and support
the workpiece to a stable platform. Holding the work by hand or against your
body is unstable and may lead to loss of control.
17. Do not force the tool. Use the correct tool for your application. The correct
tool will do the job better and safer at the rate for which it is designed.
18. Do not use the power tool if the Power Switch does not turn it on or off.
Any tool that cannot be controlled with the Power Switch is dangerous and must
be replaced.
19. Disconnect the Power Cord Plug from the power source before making any
adjustments, changing accessories, or storing the tool. Such preventive
safety measures reduce the risk of starting the tool accidentally.
20. Store idle tools out of reach of children and other untrained persons. Tools
are dangerous in the hands of untrained users.
21. Maintain tools with care. Keep cutting tools sharp and clean. Properly
maintained tools with a sharp cutting edge are less likely to bind and are easier
to control. Do not use a damaged tool. Tag damaged tools “Do not use” until
repaired.
SKU 90107 PAGE 4

22. Check for misalignment or binding of moving parts, breakage of parts, and
any other condition that may affect the tool’s operation. If damaged, have
the tool serviced before using. Many accidents are caused by poorly main-
tained tools.
23. Use only accessories that are recommended by the manufacturer for your
model. Accessories that may be suitable for one tool may become hazardous
when used on another tool.
SERVICE
24. Tool service must be performed only by qualified repair personnel. Service
or maintenance performed by unqualified personnel could result in a risk of injury.
25. When servicing a tool, use only identical replacement parts. Follow
instructions in the “Inspection, Maintenance, And Cleaning” section of this
manual. Use of unauthorized parts or failure to follow maintenance instructions
may create a risk of electric shock or injury.
GROUNDING
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WARNING!
Improperly connecting the grounding wire can result in the risk of electric
shock. Check with a qualfified electrician if you are in doubt as to whether the
outlet is properly grounded. Do not modify the power cord plug provided with
the tool. Never remove the grounding prong from the plug. Do not use the
tool if the power cord or plug is damaged. If damaged, have it repaired by
a service facility before use. If the plug will not fit the outlet, have a proper
outlet installed by a qualified electrician.
GROUNDED TOOLS: TOOLS WITH THREE PRONG PLUGS
1. Tools marked with “Grounding Required” have a three wire cord and three prong
grounding plug. The plug must be connected to a properly grounded outlet. If
the tool should electrically malfunction or break down, grounding provides a low
resistance path to carry electricity away from the user, reducing the risk of elec-
tric shock. (See Figure A, next page.)
2. The grounding prong in the plug is connected through the green wire inside the
cord to the grounding system in the tool. The green wire in the cord must be the
only wire connected to the tool’s grounding system and must never be attached
to an electrically “live” terminal. (See Figure A.)

3. Your tool must be plugged into an appropriate outlet, properly installed and
grounded in accordance with all codes and ordinances. The plug and outlet
should look like those in the following illustration. (See Figure A.)
FIGURE A
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DOUBLE INSULATED TOOLS: TOOLS WITH TWO PRONG PLUGS
4. Tools marked “Double Insulated” do not require grounding. They have a special
double insulation system which satisfies OSHA requirements and complies with
the applicable standards of Underwriters Laboratories, Inc., the Canadian
Standard Association, and the National Electrical Code. (See Figure B.)
5. Double insulated tools may be used in either of the 120 volt outlets shown in the
following illustration. (See Figure B.)
FIGURE B

SKU 90107 PAGE 7
EXTENSION CORDS
1. Grounded tools require a three wire extension cord. Double Insulated tools
can use either a two or three wire extension cord.
2. As the distance from the supply outlet increases, you must use a heavier gauge
extension cord. Using extension cords with inadequately sized wire causes a
serious drop in voltage, resulting in loss of power and possible tool damage.
(See Figure C, below.)
3. The smaller the gauge number of the wire, the greater the capacity of the cord.
For example, a 14 gauge cord can carry a higher current than a 16 gauge cord.
(See Figure C.)
4. If using more than one extension cord to make up the total length, make sure
each cord contains at least the minimum wire size required. (See Figure C.)
5. If you are using one extension cord for more than one tool, add the nameplate
amperes and use the sum to determine the required minimum cord size.
(See Figure C.)
6. If you are using an extension cord outdoors, make sure it is marked with the suf-
fix “W-A” (“W” in Canada) to indicate it is acceptable for outdoor use.
7. Make sure your extension cord is properly wired and in good electrical condition.
Always replace a damaged extension cord or have it repaired by a qualified elec-
trician before using it.
8. Protect your extension cords from sharp objects, excessive heat, and damp or
wet areas.
FIGURE C

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SYMBOLOGY
Double Insulated
Canadian Standards
Association
Underwriters
Laboratories, Inc.
Volts Alternating Current
Amperes
No Load Revolutions
per Minute (RPM)
noxxxx/min.
A
V ~
SPECIFIC SAFETY RULES
1. Maintain a safe working environment. Keep the work area well lit. Make sure
there is adequate surrounding workspace. Always keep the work area free of
obstructions, grease, oil, trash, and other debris. Do not use the Waterfall Pump
in areas near flammable chemicals, dusts, and vapors.
2. Maintain labels and nameplates on the Waterfall Pump. These carry
important information. If unreadable or missing, contact Harbor Freight Tools for
a replacement.
3. Ground this product. To comply with the National Electric Code, and to provide
additional protection from the risk of electrical shock, this product should only be
connected to a 115 volt electrical outlet that is protected by a Ground Fault
Circuit Interrupter (GFCI).
4. Do not pump flammable, explosive, or corrosive liquids such as gasoline,
fuel oil, kerosene, etc.
5. Never plug the Power Cord of this product into an electrical outlet while
standing on a wet or damp surface.
6. To avoid electrical shock, do not pull or carry the Waterfall Pump by its
Power Cord or pull the Power Cord around sharp corners or edges.
7. Do not unplug the Waterfall Pump by pulling on the Power Cord. Keep the
Power Cord away from heated surfaces.

8. Use eye protection. Always wear ANSI approved safety impact eye goggles
when working with this product.
9. Secure the discharge hose (not included) before starting the Waterfall
Pump. An unsecured discharge hose may whip, causing personal injury and/or
property damage.
10. Always check the discharge hose for weak or worn conditions before each
use. Also, check to make sure all connections are tight and secure.
11. Never run the Waterfall Pump dry. Doing so will increase wear to the unit and
possibly cause seal damage.
12. Always turn off the Waterfall Pump and unplug the unit from its electrical
outlet before performing any inspection, maintenance, or cleaning proce-
dures.
13. Do not allow children to handle or play with this product.
14. Store idle equipment. When not in use, tools and equipment should be stored
in a dry location to inhibit rust. Always lock up tools and equipment, and keep out
of reach of children.
15. Do not use this product if under the influence of alcohol or drugs. Read
warning labels on prescriptions to determine if your judgement or reflexes are im-
paired while taking drugs. If there is any doubt, do not attempt to use this prod-
uct.
16. Industrial applications must follow OSHA requirements.
17. Maintain this product with care. Keep this product clean for better and safer
performance.
18. Maintenance: For your safety, service and maintenance should be performed
regularly by a qualified technician.
19. Check for damaged parts. Before using this product, carefully check that it will
operate properly and perform its intended function. Check for damaged parts
and any other conditions that may affect the operation of this product. Replace
or repair damaged or worn parts immediately.
SKU 90107 PAGE 9

20. Replacement parts and accessories: When servicing, use only identical re-
placement parts. Only use accessories intended for use with this product.
21. Use the right tool or attachment for the right job. Do not attempt to force a
small tool or attachment to do the work of a larger industrial tool or attachment.
There are certain applications for which this product was designed. It will do the
job better and more safely at the rate for which it was intended. Do not modify
this product, and do not use this product for a purpose for which it was not in-
tended.
22. WARNING! People with pacemakers should consult their physician(s) be-
fore using this product. Operation of electrical equipment in close proximity to a
heart pacemaker could cause interference or failure of the pacemaker.
23. WARNING! The warnings, precautions, and instructions discussed in this
manual cannot cover all possible conditions and situations that may occur. The
operator must understand that common sense and caution are factors which can-
not be built into this product, but must be supplied by the operator.
UNPACKING
When unpacking, check to make sure all the parts shown on the Parts List on page 13
are included. If any parts are missing or broken, please call Harbor Freight Tools at the
number shown on the cover of this manual as soon as possible.
ASSEMBLY INSTRUCTIONS
NOTE: For additional information regarding the parts mentioned in the following pages,
refer to the Assembly Diagram on page 13.
1. NOTE: Volume of Pump performance is rated in gallons per hour and may vary
with actual use due to discharge hose diameter, length of discharge hose,
types of hose connections, etc. If possible, for this particular Waterfall Pump use
a1-1/2” to 2” diameter discharge hose (not included). The 2” diameter
discharge hose will yield the greatest flow.
2. To connect a discharge hose to the Waterfall Pump, apply a generous amount of
pipe joint sealant (not included) to the Elbow (part #26) to ensure air-tight opera-
tion. Attach the discharge hose to the Elbow, and secure the discharge hose to
the Elbow with a hose clamp (not included). See Figure D, next page.)
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SKU 90107 PAGE 11
ELBOW
(#26)
APPLY PIPE
JOINT SEALANT
(NOT INCLUDED)
HOSE CLAMP
(NOT INCLUDED)
DISCHARGE HOSE
(NOT INCLUDED)
1-1/2”TO 2” DIA.
FIGURE D
OPERATING INSTRUCTIONS
1. Make sure the Waterfall Pump is unplugged. Then, lower the Waterfall Pump
into the water on a solid, level surface. Do not lower the Waterfall Pump by
means of the Power Cord (part #1) or discharge hose. Do not place the Waterfall
Pump directly on clay earth or sand surfaces. A minimum of two inches of water
is recommended to properly prime the Waterfall Pump.
2. IMPORTANT: Do not run the Waterfall Pump unless it is submerged in at least
two inches of water. Doing so will damage the Pump.
3. Route the Power Cord (part #1) to its electrical outlet safely to avoid tripping over
the Power Cord or damage to the Power Cord. Do not allow the Power Cord’s
Plug to become wet. Always use an electrical outlet that is in a dry location and
as far away as possible from wherre the Waterfall Pump is located.
4. Plug the Power Cord’s Plug (part #1) into the electrical outlet. The Waterfall
Pump will then begin to operate.
5. IMPORTANT: If during operation the water stops flowing from the discharge
hose, immediately unplug the Waterfall Pump from its electrical outlet to avoid
NOTE: For additional information regarding the parts mentioned in the following pages,
refer to the Assembly Diagram on page 13.

SKU 90107 PAGE 12
damage to the Pump. This indicates the water level is probably too low causing
the Pump to lose its suction seal or that the Base Plate (part #24) is clogged with
debris.
6. When finished using the Waterfall Pump, unplug the Power Cord (part #1) from
its electrical outlet. If necessary, remove the Waterfall Pump from the water, and
store the Pump in a clean, dry, location.
INSPECTION, MAINTENANCE, AND CLEANING
1. WARNING! Always unplug the Waterfall Pump from its electrical outlet
before performing any inspection, maintenance, or cleaning.
2. BEFORE EACH USE, inspect the general condition of the Waterfall Pump.
Check for misalignment or binding of moving parts, cracked or broken parts,
damaged wiring, and any other condition that may affect its safe operation. If
abnormal noise or vibration occurs, have the problem corrected before further
use. Do not use damaged equipment.
3. TO CLEAN THE INTAKE AREA: First, remove the Suction Filter (part #24)
by completely unscrewing the four Screws (part #25) located on the underside of
the Suction Filter. Remove all dirt, leaves, and debris from inside the Suction
Filter. Then snap the Suction Filter back into place, and secure the Suction Filter
to the Main Body (part #22) with the four Screws. (See Assembly Diagram.)
4. IF THE WATERFALL PUMP FAILS TO OPERATE, CHECK THE FOLLOWING:
Check the circuit breaker, and try another electrical outlet to ensure the Waterfall
Pump is getting electrical power. Check the Waterfall Pump discharge hose and
tubing for kinks and obstructions. Algae build up can be flushed out using a
garden hose. Check the Suction Filter (part #24) to ensure it is not clogged
with debris.
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY 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 MANUFACTUER AND/OR DISTRIBUTOR
EXPRESSLY STATES THAT ALL 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 REPLACE-
MENT PARTS THERETO.

SKU 90107 PAGE 13
NOTE: Some parts are listed and shown for illustration purposes only, and are not available individually
as replacement parts.
PARTS LIST
Part # Description Qty. Part # Description Qty.
1 Power Cord 1 14 Washer (M6) 1
2 Screw (5 x 20) 4 15 Ground Wire 1
3 Pump Housing 1 16 Motor Protection Disc 1
4 Fairlead 1 17 Motor 1
5 Cable Press 1 18 Washer (15 x 8 x 1) 1
6 Capacitor Bracket 1 19 Impeller 1
7 Screw (4 x 20) 2 20 Nut (M8) 1
8 Screw (3.5 x 13) 1 21 O-Ring 1
9 Cable Stop 1 22 Main Body 1
10 Capacitor 1 23 Diffuser Disc 1
11 Condenser Bracket 1 24 Suction Filter 1
12 Screw (3.5 x 10) 1 25 Screw (4 x 16) 4
13 Washer (M4) 1 26 Elbow 1
ASSEMBLY DIAGRAM
1
2
3
4
5
67
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

SKU 90107 PAGE 14
LIMITED 1 YEAR / 90 DAY 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 for a period
of ninety days from date of purchase that the engine/motor, the belts (if so equipped),
and the blades (if so equipped) are free of defects in materials and workmanship. Harbor
Freight Tools also warrants to the original purchaser, for a period of one year from date of
purchase, that all other parts and components of the product are free from defects in ma-
terials and workmanship (90 days if used by a professional contractor or if used as rental
equipment). 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, special 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 explanation of the com-
plaint must accompany the merchandise. If our inspection verifies 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 specific 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]