Harbor Freight Tools 92103, 92104, 92105 User Manual

MOTOR - 1/4 HPMOTOR - 1/4 HP

MOTOR - 1/4 HP

MOTOR - 1/4 HPMOTOR - 1/4 HP

MOTOR - 1/3 HPMOTOR - 1/3 HP

MOTOR - 1/3 HP

MOTOR - 1/3 HPMOTOR - 1/3 HP

92103

MOTOR - 1/2 HPMOTOR - 1/2 HP

MOTOR - 1/2 HP

MOTOR - 1/2 HPMOTOR - 1/2 HP

92104

92105

ASSEMBLY AND OPERATING INSTRUCTIONS

3491 MISSION OAKS BLVD., CAMARILLO, CA 93011

VISIT OUR WEB SITE AT HTTP://WWW.HARBORFREIGHT.COM

Copyright © 2004 by Harbor Freight Tools®. All r ights 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 and replacement parts, please call 1-800-444-3353

SPECIFICATIONS

Item Description

Power Requirement 115 VAC, 60 Hz, single phase
Current Draw
Output Power 92103: ¼ HP; 92104: 1/3 H P; 9210 5 : ½ H P

Shaft Diameter 92103: 9/16”; 92104: 9/16”; 92105: 5/8”
Rotatio n Facing S haft: Co untercloc k wise (rev ersible);

Frame Type 92103: NEMA 4 4; 92103: N EMA 44;
Features Four poles; Fan cooled; Centrifugal switch;
Overall Dimensions 92103/104: 11.5 (L) x 8.2 (W) x 8.2 (H) inches

92103: 4.37 amps (no load), 12.18 amps (peak)
92104: 5.17 amps (no load), 14 amps (peak)
92105: 5 amps (no load), 7.54 amps (peak)

1725 RPM (max.)
92105: NEMA 4 8
90105: Capacitor start
92105: 12.5 (L) x 8.2 (W) x 8.2 (H) inches

SAVE THIS MANUAL

You will need the manual for the safety warnings and precautions, assembly instructions,
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.

GENERAL SAFETY RULES

WARNING!

READ AND UNDERST AND ALL INSTRUCTIONS. Failure to follow all instructions
listed below may result in electric shoc k, 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. P ow er tools create sparks which may ignite the
dust or fumes.

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.

SKU 92103/104/105 For technical questions, please call 1-800-444-3353

Page 2

Electrical Safety

4. Av oid bod y contact with gr ounded surfaces suc h as pipes, radiator s, ranges,
and refrigerators. There is an increased risk of electric shock if your body is

grounded.

5. Do not expose power tools to rain or wet conditions. W ater entering a pow er tool
will increase the risk of electric shock.

6. 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 wa y. Do not use an y 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.

7. 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 wa y . 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

cord and grounded power supply system.

8. Do not abuse the P ower Cord. Never use the Power Cord to carry the tools or

pull the Plug from an outlet. Keep the Power Cord awa y from heat, oil, sharp
edges, or mo ving parts. Replace damaged P o wer Cords immediatel y. 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.

eliminates the need for the three wire grounded pow er

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.

11. Dress properly. Do not wear loose clothing or je welry. Contain long hair. K eep
your hair, clothing, and glo ves a wa y from mo ving parts. Loose clothes, jew elry, or
long hair can be caught in moving parts.

12. Av oid accidental starting. Be sure the Po wer Switch is off before plug ging 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.

SKU 92103/104/105 For technical questions, please call 1-800-444-3353

Page 3

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, nonskid 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 y our 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 . An y tool
that cannot be controlled with the Power Switch is dangerous and must be replaced.

19. Disconnect the Power Cor d 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.

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, ha ve the tool
serviced before using. Many accidents are caused by poorly maintained 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. Motor 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

unauthorized parts or failure to follow maintenance instructions may create a risk of
electric shock or injury .

“Inspection, Maintenance, And Cleaning”

section of this manual. Use of

SPECIFIC SAFETY RULES FOR THIS PRODUCT

1. Maintain labels and nameplates on the Motor . These carry important information. If
unreadable or missing, contact Harbor F reight Tools for a replacement.

SKU 92103/104/105 For technical questions, please call 1-800-444-3353

Page 4

2. Always wear ANSI approved safety impact eye goggles and heavy work gloves
when setting up and using the Motor . Using personal safety devices reduce the risk
for injury. Safety impact eye goggles and heavy work gloves are available from Harbor
Freight Tools.

3. Maintain a safe working en vir onment. K eep 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 install the motor in areas near
flammable chemicals, dusts, and vapors. Do not use this product in a damp or wet
location.

4. Av oid unintentional starting. Mak e sure y ou are prepared to begin work before
turning on the Motor.

5. Do not force the Motor. This tool will do the work better and safer at the speed and
capacity for which it was designed.

6. Always unplug the Motor from its electrical outlet (or turn off the circuit breaker

and tag) before performing any inspection, maintenance, or cleaning
procedures.

7. When installing motor , observe all national and local codes. Mak e sure to install,
protect, and fuse according to the latest issue of the National Electric Code, NEMA
Standard Publication No . MG2, and local codes. Ground frames in accordance with
NEC Article 430. For general grounding information, refer to NEC Article 250.

8. Install guards when appropriate. Make sure all mo ving parts, including the shaft
and any attached accessories, are permanently guarded to prevent clothing and body
parts from being caught.

9. Disconnect power before working on motor driven equipment.

10. Before each use, check all nuts, bolts, and screws for tightness. Vibration during
operation may cause these to loosen.

11. Keep extension cord off the ground and away from w ater.

12. Alwa ys connect the Line Cord to a Ground F ault Circuit Interrupter (GFCI) protected
electrical outlet.

13. Do not allow children to play with, or touch this product.

(1)

14. Keep the motor dry; ne ver submerge in w ater. K eep the motor a saf e distance from all
flammable objects.

WARNING! P eople with pacemakers should consult their ph ysician(s) before using

this product. Operation of electrical equipment in close proximity to a heart pacemaker
could cause interference or failure of the pacemaker .

SKU 92103/104/105 For technical questions, please call 1-800-444-3353

Page 5

GROUNDING

WARNING!

Improperly connecting the grounding wire can result in the risk of electric shock.
Check with a qualified 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 or
product. 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” ha ve 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 electric shock. (See
Figure A.)

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

Figure B

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.)

SKU 92103/104/105 For technical questions, please call 1-800-444-3353

Page 6

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 Table A.)

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 Table
A.)

4. When 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 Table A.)

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 Table A.)

6. If y ou are using an e xtension cord outdoors , mak e sure it is marked with the suffix “W­A” (“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
electrician before using it.

8. Protect your extension cords from sharp objects, excessive heat, and damp or wet
areas.

Table A

RECOMMENDED MINIMUM WIRE GAUG E FOR EXTENSION CORDS*

(120 VOLT)

NAMEPLATE

AMPERES

(At Full Load)

25

Feet

0 – 2.0 18 18 18 18 16

2.1 – 3.4 18 18 18 16 14

3.5 – 5.0 18 18 16 14 12

5.1 – 7.0 18 16 14 12 12

7.1 – 12.0 16 14 12 10 -

12.1 – 16.0 14 12 10 - -

16.1 – 20.0 12 10 - - ­* Based on limiting the line voltage drop to five volts at 150% of the rated amperes.

EXTENSION CORD LENGTH

50

Feet

75

Feet

100

Feet

150

Feet

SKU 92103/104/105 For technical questions, please call 1-800-444-3353

Page 7

SYMBOLOGY

Table B

UNPACKING

When unpacking, check to mak e sure that all the parts are included. If any parts are miss­ing or broken, please call Harbor F reight Tools at the number on the cover of this manual as
soon as possible.

INSTALLATION

WARNING: Electrical shoc k hazard. The wiring of the motor to the facility power circuit
must be done by a qualified electrician.

General

1. The ambient air temper ature where the motor is to be installed cannot e xceed 104° F.
If it does, cooling must be provided to ensure the temperature stays below the limit.

2. Do not block motor air vents.

3. This motor should be installed indoors in a clean, dry, and noncorrosive environment
where no flammable liquids or gases are present.

4. When mounting the motor for use, make sure all mounting hardware is securely
fastened. Make sure all hardware (not supplied) is securely fastened.

5. When mounting a pulley (not included) to the drive shaft, make sure it is properly
aligned or motor life will be significantly shortened.

6. Never operate motor without installing a safety guard (not supplied), with at least a two
inch clearance, around all pulleys and belts driven by this motor.

SKU 92103/104/105 For technical questions, please call 1-800-444-3353

Page 8

Motor Wire Connections

The table below, and the photo on the next page, indicate the proper wiring connections for
the motor internal wires and the external power connections (neutral power wire is usually
white; hot po w er wire is usually black, ground wire (green) is for earth ground).

1. Remove Connection Cover to expose the terminal strip (see photo below).

2. Verify that there is no power to the circuit to be connected. Chec k fuse bo x and turn off
circuit breaker .

3. Using approved National Electrical Code electrical standards, make the connections
as described in the table below for 115 VAC operation only.

Reverse the blue and black leads for clockwise rotation. Note: As there are tap

connections under the electrical block, do not reverse the line conductors. The facility
power circuit, and connecting wires, must be rated at least 20 amps of current. Use
wire lugs (not included) to connect the wires to the Motor terminal strip. The motor can
be connected by an appropriate size line cord (not included) or hard wired through
conduit.

4. Replace motor Connection Cover.

Caution: Always connect the green grounding wire to the green motor chassis screw.
Failure to connect this wire properly can create a severe safety hazard.

Counterclockwise Clockwise

Wired from factory
for counterclockwise
rotation

Line In (Hot)
Line In (Neutral)

(1)

Connection
Cover

SKU 92103/104/105 For technical questions, please call 1-800-444-3353

Ground Wire (green)

Page 9

OPERATING INSTRUCTIONS

Before initial operation, verify that:

1. The Motor is dry.

2. The voltage and frequency stamped on motor and control nameplates correspond with
that of the input power line.

3. All connections to the motor are correct.

4. The rotor turns freely when disconnected from the load.

5. The motor is detached from the load f or the initial start. Operate the motor without a
load for about one hour to test for any localized heating in bearings and windings.

6. The voltage is correct and balanced at the motor terminals, and no-load current draw
(in amps) is correct.

7. The motor comes up to its operational speed and is not being overloaded.

INSPECTION, MAINTENANCE, AND CLEANING

WARNING! Make sure the Po wer Switch of the Motor is in its “OFF” position and that

the tool is unplugged or disconnected from its electrical outlet before performing any
inspection, maintenance, or cleaning procedures.

1. Before each use, inspect the general condition of the Motor . Check f or loose scre ws,
misalignment or binding of moving parts, cracked or broken parts, damaged electrical
wiring, and any other condition that may affect its safe operation. If abnormal noise or
vibration occurs, hav e the problem corrected before further use. Do not use damaged

equipment.

2. Maintenance and repairs should only be done by a qualified technician.

3. Periodically recheck all nuts, bolts, and screws for tightness.

4. Store in a clean and dry location.

Lubrication

Note: If lubrication instructions are shown on motor, they will supersede this general
instruction. Lubrication should be completed by a qualified technician.

1. The Motor is properly lubricated at the time of manufacture. It is not necessary to
lubricate at time of installation unless the motor has been in storage for a period of 12
months or longer .

2. Re-oil sleeve bearings with drops of 5W20 viscosity motor oil every 2000 hours of
normal service. Direct drive operation (no pulleys) requires lubrication every 3000
hours of normal service.

3. Sealed ball bearings require no attention during the life of the bearing.

SKU 92103/104/105 For technical questions, please call 1-800-444-3353

Page 10

WIRING DIAGRAMS

92103/92104

92105

SKU 92103/104/105 For technical questions, please call 1-800-444-3353

REV 03/05

Page 11