Harbor Freight Tools 94186 User Manual
5 INCH BENCH GRINDER
94186
ASSEMBLY AND OPERATING INSTRUCTIONS
Due to continuing improvements, actual product may differ slightly from the product described herein.
3491 MISSION OAKS BLVD., CAMARILLO, CA 93011
VISIT OUR WEB SITE AT HTTP://WWW.HARBORFREIGHT.COM
Copyright © 2006 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 and replacement parts, please call 1-800-444-3353
SPECIFICATIONS
Motor
Line Cord 3-prong grounded plug, 5.5 feet long, 18 AWG x 3C
Spindle
Wheel Size 5” Dia.
Switch Lighted, rocker type
Grinding Wheels Once 35 grit and one 60 grit aluminum oxide
Overall Dimensions 5-3/4” L x 10-1/2” W x 7” H
Rest Dimensions
Weight 9.1 lb.
Item Description
1/3 HP (maximum); 120VAC, 60 Hz; 3450 RPM;
Sealed radial armature bearings
1/2” x 12 TPI threads; Right side: forward threads;
Left side: reverse threads
1” L x 2” W x 2-1/2” H; Brackets: 2-1/2” H x 3-1/2”;
Eye shields: 3-3/4” W x 1/8” Thick
233988
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 UNDERSTAND ALL INSTRUCTIONS. Failure to follow all instructions
listed below may result in electric shock, fire, and/or serious injury.
SAVE THESE INSTRUCTION
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.
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 94186 For technical questions, please call 1-800-444-3353
REV 06f; 09a
Page 2
Electrical Safety
4. 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.
5. Do not expose power tools to rain or wet conditions. Water entering a power 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 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.
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 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.
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.
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.
SKU 94186 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, non-skid safety
shoes, hard hat, or hearing protection must be used for appropriate conditions.
Tool Use and Care
16. 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.
17. 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.
18. 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.
19. Store idle tools out of reach of children and other untrained persons. Tools are
dangerous in the hands of untrained users.
20. 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.
21. 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 maintained tools.
22. 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
23. Tool service must be performed only by qualified repair personnel. Service or
maintenance performed by unqualified personnel could result in a risk of injury.
24. 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.
Note: Performance of this tool may vary depending on variations in local line voltage. Extension cord usage may also affect tool performance.
SAFETY INSTRUCTIONS FOR BENCH GRINDER
1. Maintain labels and nameplates on the Bench Grinder. These carry important
information. If unreadable or missing, contact Harbor Freight Tools for a replacement.
SKU 94186 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 using the Bench Grinder. 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 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 a power tool in areas near flammable
chemicals, dusts, and vapors. Do not use this product in a damp or wet location.
4. Avoid unintentional starting. Make sure you are prepared to begin work before
turning on the Bench Grinder.
5. Do not force the Bench Grinder. This tool will do the work better and safer at the
speed and capacity for which it was designed.
6. Always unplug the Bench Grinder from its electrical outlet before performing
any inspection, maintenance, or cleaning procedures.
7. Never leave the Bench Grinder unattended while running. Turn power off if you
have to leave the Bench Grinder.
8. Before each use, check all nuts, bolts, and screws for tightness. Vibration during
mixing may cause these to loosen.
9. Keep extension cord off the ground and away from water.
10. Always connect the Line Cord to a Ground Fault Circuit Interrupter (GFCI)
protected electrical outlet.
11. Install this product on a proper surface. Locate on a flat, level, and solid surface
that is capable of supporting the weight of the Bench Grinder.
12. Use a full face mask when grinding any metals. The grinder can produce sparks
which may land on your clothing, or hit your face. Also ensure that you are not
operating the grinder around flammable materials or liquids. Always make sure the
safety shields and wheel guards are in place at all times.
13. Make sure the grinding wheels are of the proper speed (3450 RPM or greater)
rating.
14. Frequently quench the workpiece in water to prevent overheating.
15. Use the tool rest to steady the work piece. If the tool rest is not used, the torque of
the spinning grinding wheel may pull the workpiece from your hands.
16. Do not use aluminum oxide wheels when grinding nonferrous metals such as
aluminum and brass. Use silicon carbide wheels for nonferrous metals.
17. When buffing material, always hold the material on the lower side of the buffing
wheel.
SKU 94186 For technical questions, please call 1-800-444-3353
Page 5
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