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Table of Contents
Safety ......................................................... 2
Specifications ............................................. 5
Setup .......................................................... 5
SAFETY OPERATION MAINTENANCESETUP
Operation .................................................... 6
Maintenance ............................................... 8
Parts List and Diagram .............................. 10
Warranty .................................................... 12
WARNING SYMBOLS AND DEFINITIONS
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.
Indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
Addresses practices not related to personal injury.
IMPORTANT SAFETY INFORMATION
General Tool Safety Warnings
Read all safety warnings and instructions.
Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.
Save all warnings and instructions for future reference.
1. KEEP GUARDS IN PLACE and in working order.
2. REMOVE ADJUSTING KEYS AND
WRENCHES. Form habit of checking to
see that keys and adjusting wrenches are
removed from tool before turning it on.
3. KEEP WORK AREA CLEAN.
Cluttered areas and benches invite accidents.
4. DON’T USE IN DANGEROUS ENVIRONMENT.
Don’t use power tools in damp or wet locations,
or expose them to rain. Keep work area well lighted.
5. KEEP CHILDREN AWAY. All visitors should
be kept safe distance from work area.
6. MAKE WORKSHOP KID PROOF with padlocks,
master switches, or by removing starter keys.
7. DON’T FORCE TOOL. It will do the job better
and safer at the rate for which it was designed.
8. USE RIGHT TOOL. Don’t force tool or attachment
to do a job for which it was not designed.
Page 2 For technical questions, please call 1-888-866-5797. Item 61778
Page 3
Table A: RECOMMENDED MINIMUM WIRE GAUGE
FOR EXTENSION CORDS
(120 VOLT)
NAMEPLATE
AMPERES
(at full load)
0 – 6 18 16 16 14
6.1 – 10 18 16 14 12
10.1 – 12 16 16 14 12
12.1 – 16 14 12 Do not use.
9. USE PROPER EXTENSION CORD. Make sure your
extension cord is in good condition. When using
an extension cord, be sure to use one heavy
enough to carry the current your product will draw.
An undersized cord will cause a drop in line voltage
resulting in loss of power and overheating.
Table A shows the correct size to use depending
on cord length and nameplate ampere rating.
If in doubt, use the next heavier gauge.
The smaller the gauge number, the heavier the cord.
10. WEAR PROPER APPAREL. Do not wear
loose clothing, neckties, rings, bracelets, or
other jewelry which may get caught in moving
parts. Nonslip footwear is recommended.
Wear protective hair covering to contain long hair.
11. ALWAYS USE SAFETY GLASSES. Also use
face or dust mask if cutting operation is dusty.
Everyday eyeglasses only have impact resistant
lenses, they are NOT safety glasses.
EXTENSION CORD
LENGTH
25′ 50′ 100′ 150′
12. DON’T OVERREACH.
Keep proper footing and balance at all times.
13. MAINTAIN TOOLS WITH CARE. Keep
tools sharp and clean for best and safest
performance. Follow instructions for
lubricating and changing accessories.
14. DISCONNECT TOOLS before servicing;
when changing accessories, such as
blades, bits, cutters, and the like.
SAFETYOPERATIONMAINTENANCE SETUP
15. REDUCE THE RISK OF UNINTENTIONAL
STARTING. Make sure switch is in
off position before plugging in.
16. USE RECOMMENDED ACCESSORIES.
Consult the owner’s manual for recommended
accessories. The use of improper accessories
may cause risk of injury to persons.
17. CHECK DAMAGED PARTS. Before further use
of the tool, a guard or other part that is damaged
should be carefully checked to determine that
it will operate properly and perform its intended
function – check for alignment of moving parts,
binding of moving parts, breakage of parts,
mounting, and any other conditions that may
affect its operation. A guard or other part that is
damaged should be properly repaired or replaced.
18. NEVER LEAVE TOOL RUNNING
UNATTENDED. TURN POWER OFF.
Grounding Instructions
TO PREVENT ELECTRIC SHOCK AND DEATH FROM INCORRECT
GROUNDING WIRE CONNECTION READ AND FOLLOW THESE INSTRUCTIONS:
110-120 VAC Double Insulated Tools: Tools with Two Prong Plugs
1. To reduce the risk of electric shock, double
insulated equipment has 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
the proper outlet. Do not change the plug in any way.
2. Double insulated tools may be used in either of the
120 volt outlets shown in the preceding illustration.
Outlets for 2-Prong Plug
(See Outlets for 2-Prong Plug.)
Page 3For technical questions, please call 1-888-866-5797.Item 61778
Page 4
Grinder Safety Warnings
For Your Own Safety Read Instruction
Manual Before Operating Grinder
1. Wear eye protection.
SAFETY OPERATION MAINTENANCESETUP
2. Use grinding wheel suitable for speed of grinder.
3. Replace cracked wheel immediately.
4. Always use guards. Only plug in
sharpener when fully assembled.
5. Be careful of bits when sharpening.
Bits will become hot. Handle with care;
allow tips to cool before storing.
6. Housing may become hot while using.
This is a normal result of operation.
7. Maintain labels and nameplates on the tool.
These carry important safety information. If
unreadable or missing, contact Harbor
Freight Tools for a replacement.
8. DO NOT OPERATE WITH ANY GUARD
DISABLED, DAMAGED, OR REMOVED.
9. The use of accessories or attachments not
recommended by the manufacturer may
result in a risk of injury to persons.
10. When servicing use only identical replacement parts.
11. Only use safety equipment that has been approved
by an appropriate standards agency. Unapproved
safety equipment may not provide adequate
protection. Eye protection must be ANSI-approved
and breathing protection must be NIOSH-approved
for the specific hazards in the work area.
12. Stay alert, watch what you are doing and use
common sense when operating a power tool.
Do not use a power tool while you are tired or
under the influence of drugs, alcohol or medication.
A moment of inattention while operating power
tools may result in serious personal injury.
13. Industrial applications must follow OSHA guidelines.
14. Avoid unintentional starting.
Prepare to begin work before turning on the tool.
15. People with pacemakers should consult their
physician(s) before use. Electromagnetic fields in
close proximity to heart pacemaker could cause
pacemaker interference or pacemaker failure.
16. WARNING: Some dust created by power
sanding, sawing, grinding, drilling, and other
construction activities, contains chemicals
known [to the State of California] to cause
cancer, birth defects or other reproductive harm.
Some examples of these chemicals are:
• Lead from lead-based paints
• Crystalline silica from bricks and cement or other
masonry products
• Arsenic and chromium from
chemically treated lumber
Your risk from these exposures varies,
depending on how often you do this type of work.
To reduce your exposure to these chemicals:
work in a well ventilated area, and
work with approved safety equipment, such
as those dust masks that are specially
designed to filter out microscopic particles.
(California Health & Safety Code § 25249.5, et seq.)
17. WARNING: Handling the cord on this product will
expose you to lead, a chemical known to the State
of California to cause cancer, and birth defects or
other reproductive harm. Wash hands after handling.
(California Health & Safety Code § 25249.5, et seq.)
18. The warnings, precautions, and instructions
discussed in this instruction 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.
Vibration Safety
This tool vibrates during use. Repeated or
long-term exposure to vibration may cause
temporary or permanent physical injury,
particularly to the hands, arms and shoulders.
To reduce the risk of vibration-related injury:
1. Anyone using vibrating tools regularly or for an
extended period should first be examined by a
doctor and then have regular medical check-ups
to ensure medical problems are not being caused
or worsened from use. Pregnant women or
people who have impaired blood circulation to
the hand, past hand injuries, nervous system
Page 4 For technical questions, please call 1-888-866-5797. Item 61778
disorders, diabetes, or Raynaud’s Disease should
not use this tool. If you feel any medical or
physical symptoms related to vibration (such as
tingling, numbness, and white or blue fingers),
seek medical advice as soon as possible.
2. Do not smoke during use. Nicotine reduces
the blood supply to the hands and fingers,
increasing the risk of vibration-related injury.
3. Use tools with the lowest vibration when there
is a choice between different processes.
4. Include vibration-free periods each day of work.
Page 5
5. Grip workpiece as lightly as possible (while still
keeping safe control of it). Let the tool do the work.
SAVE THESE INSTRUCTIONS.
Specifications
6. To reduce vibration, maintain the tool as
explained in this manual. If any abnormal
vibration occurs, stop use immediately.
Electrical Rating 120VAC / 60Hz / 0.35A
Motor No Load Speed 1700 RPM
Working Capacity 9/64" to 25/64" (3mm - 10mm)
Setup - Before Use:
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.
Note: For additional information regarding the parts listed in the following pages,
refer to the Assembly Diagram near the end of this manual.
Adjusting the Grinding Wheel
1. Turn the Adjustment Knob to the right
to raise the wheel. This will give you an
aggressive cutting action. This is also useful
when you are working with short bits.
2. Lower the wheel by turning the Knob to
the left. This is desirable when you wish
a finer ground edge, though it will take
longer and require more repetitions.
Functions
SAFETYOPERATIONMAINTENANCE SETUP
Power Switch
Adjusting Knob
Drill Index
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Page 6
Operating 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.
SAFETY OPERATION MAINTENANCESETUP
TO PREVENT SERIOUS INJURY:
DO NOT OPERATE WITH ANY GUARD DISABLED, DAMAGED, OR REMOVED.
Workpiece and Work Area Set Up
1. Designate a work area that is clean and well-lit.
The work area must not allow access by children
or pets to prevent distraction and injury.
2. Route the power cord along a safe route to reach
the work area without creating a tripping hazard or
exposing the power cord to possible damage. The
power cord must reach the work area with enough
extra length to allow free movement while working.
General Operating Instructions
1. Make sure that the Switch is in the off-position,
then plug in the tool.
2. Select a clean bit to be sharpened and match
its size with one of the holes in the head.
3. Put the bit into the appropriate hole and twist
until it locks into place. See Figure A.
Twist until
locked
in place
Figure A: Putting Bits into the Sharpener
4. Lean the bit towards the number on the
outside of the hole. See Figure B.
Tilt out
slightly
3. There must not be objects, such as utility lines,
nearby that will present a hazard while working.
4. Clean bits to be sharpened thoroughly.
5. Place sharpener on a flat, sturdy surface.
5. Turn the unit on while exerting a slight
downward pressure onto the bit.
6. Turn unit off after about 5-10 seconds.
7. Examine bit according to the “Sharpening
Troubleshooting” section, below.
8. Sharpening Tips:
a. If the tip of the bit is turning blue, it is
overheating. Reduce the amount of pressure
and sharpening time. Cool bit in water and
allow it to dry between sharpening.
b. If one edge is longer than the other, and the
point is not centered, sharpen the shorter
side for a little less time. To prevent this from
happening, sharpen both sides the same amount
of time, using the same amount of pressure.
c. If sharpening a broken (rather than a
dull bit) and the time required to get a
sufficient edge is too long, rough the bit
into shape first using a bench grinder.
9. CAUTION! Do not touch the end of the bit after
it is sharpened. The bit will become hot!
10. Repeat the above steps to the other side of the
bit. Sharpen both sides the same amount of
time, using the same amount of pressure.
11. Repeat the above steps as necessary to sharpen bit.
12. To prevent accidents, turn off the tool and unplug
the tool from its electrical outlet after use. Clean,
then store the tool indoors out of children’s reach.
Figure B: Tilt the Bit
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Page 7
Properly Sharpened Bits
Center Point Cutting Edge
Trailing Edge
Figure C: Parts of the Bit
Bit is properly sharpened when it has
the following characteristics.
1. A sharp point in the center of the bit.
2. Two sharp and equal cutting edges.
3. Two trailing edges that are slightly
lower than the cutting edges.
SAFETYOPERATIONMAINTENANCE SETUP
Page 7For technical questions, please call 1-888-866-5797.Item 61778
Page 8
Maintenance and Servicing
Procedures not specifically explained in this manual must
be performed only by a qualified technician.
SAFETY OPERATION MAINTENANCESETUP
TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION:
Turn the Power Switch of the tool off and unplug the tool from its electrical outlet
before performing any procedure in this section.
TO PREVENT SERIOUS INJURY FROM TOOL FAILURE:
Do not use damaged equipment. If abnormal noise or vibration
occurs, have the problem corrected before further use.
Cleaning, Maintenance, and Lubrication
1. BEFORE EACH USE, inspect the general
condition of the tool. Check for:
• loose hardware,
• misalignment or binding of moving parts,
• cracked or broken parts,
• damaged electrical wiring, and
• any other condition that may
affect its safe operation.
Wheel Storage and Handling
1. Handle wheels carefully to prevent
dropping or bumping. Do not use wheels
that have been dropped or bumped.
Changing the Wheel
1. Change the Grinding Wheel (7) if grooves or
ridges mar the evenness of the grinding surface.
2. Remove the two Screws (12). See Figure D.
2. AFTER USE, wipe external surfaces
of the tool with clean cloth.
3. Periodically, wear ANSI-approved
safety goggles and NIOSH-approved
breathing protection and blow dust and grit out
of the motor vents using dry compressed air.
4.
2. Store wheels in shelves, racks, boxes, or drawers.
3. Remove the Index Head Assembly (1, 2, & 8).
4. Remove the Wheel Assembly. Make sure the Spring
WARNING! If the supply cord of this
power tool is damaged, it must be replaced
only by a qualified service technician.
Keep storage area dry and above freezing. Any
grinding or cut-off wheels exposed to humidity
or freezing temperatures must not be used.
(5) stays in place. Refer to the Parts Diagram.
Adjusting Knob (1)
Screw (12)
Figure D: Removing the Screws
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Screw (12)
5. Unscrew the Adjustment Cylinder (4) from
the Wheel Base (8) by turning clockwise.
6. Pry out the Washer (6).
7. Pop out the Wheel Base (8).
8. Press new Wheel (7) onto Wheel Base (8), replace
Washer (6), and screw the Cylinder (4) back in.
9. Replace Wheel Assembly onto unit. Make sure
that the inner flats of the Adjustment Cylinder (4)
match the outer flats of the Drive Spindle (11).
10. Replace the Drill Index and Screws (12).
Page 9
Troubleshooting
Problem Possible Causes Likely Solutions
Tool will not start. 1. Cord not connected.
2. No power at outlet.
3. Tool’s thermal reset breaker
tripped (if equipped).
4. Internal damage or wear. (Carbon
brushes or switch, for example.)
Tool operates
slowly.
Performance
decreases
over time.
Excessive noise
or rattling.
Overheating. 1. Forcing machine to work too fast.
Motor turns
on, but wheel
does not spin
Extension cord too long or
wire size too small.
1. Accessory dull or damaged.
2. Carbon brushes worn or damaged.
Internal damage or wear. (Carbon
brushes or bearings, for example.)
2. Accessory dull or damaged.
3. Blocked motor housing vents.
4. Motor being strained by long or
small diameter extension cord.
Adjustment Cylinder′s inner
flats are not even with the outer
flats of the Drive Spindle
1. Check that cord is plugged in.
2. Check power at outlet. If outlet is unpowered,
turn off tool and check circuit breaker.
If breaker is tripped, make sure circuit is right
capacity for tool and circuit has no other loads.
3. Turn off tool and allow to cool.
Press reset button on tool.
4. Have technician service tool.
Eliminate use of extension cord. If an extension cord
is needed, use one with the proper diameter for its
length and load. See Table A on page 3.
1. Keep cutting accessories sharp.
Replace as needed.
2. Have qualified technician replace brushes.
Have technician service tool.
1. Allow machine to work at its own rate.
2. Keep cutting accessories sharp.
Replace as needed.
3. Wear ANSI-approved safety goggles and
NIOSH-approved dust mask/respirator while
blowing dust out of motor using compressed air.
4. Eliminate use of extension cord.
If an extension cord is needed, use one with
the proper diameter for its length and load.
See Table A on page 3.
Even out the Adjustment Cylinder′s (4) inner
flats with the outer flats of the Drive Spindle (11)
as described in “Changing the Wheel”.
SAFETYOPERATIONMAINTENANCE SETUP
Follow all safety precautions whenever diagnosing or servicing the tool.
Disconnect power supply before service.
Page 9For technical questions, please call 1-888-866-5797.Item 61778
Page 10
Parts List and Diagram
PLEASE READ THE FOLLOWING CAREFULLY
SAFETY OPERATION MAINTENANCESETUP
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 MANUFACTURER 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 REPLACEMENT PARTS THERETO.
Parts List
Part Description Qty
1 Adjustment Knob 2
2 Index 1
3 Cap Ring 1
4 Adjustment Cylinder 2
5 Spring 2
6 Washer 2
7 Grinding Wheel 1
8 Wheel Base 2
9 Cover 2
10 Bearing 6202 2
11 Drive Spindle 2
12 Screw 4*8 4
13 Housing 1
14 Screw M5*35 1
15 Spring Washer 2
16 Nut M5 1
17 Upper Motor Housing 1
Part Description Qty
18 Connector-Male 1
19 Motor 1
20 Cover 2
21 Screw 4*16 1
22 Capacitor 1
23 Screw 4*16 2
24 Pressure Plate 1
25 Cord Protector 1
26 Terminal 2
27 Cord 1
28 Screw 4*16 3
29 Rubber Pad 4
30 Washer 4
31 Screw 4*12 4
32 Switch 1
33 Motor housing 1
Record Product’s Serial Number Here:
Note: If product has no serial number, record
month and year of purchase instead.
Page 10 For technical questions, please call 1-888-866-5797. Item 61778
Note: Some parts are listed and shown for
illustration purposes only, and are not available
individually as replacement parts.
Page 11
Assembly Diagram
1
2
16
3
4
5
6
7
8
9
10
11
12
13
14
15
SAFETYOPERATIONMAINTENANCE SETUP
32
33
28
18
17
21
29
19
23
20
22
24
25
27
26
30
31
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Page 12
Limited 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 this product is free from defects in materials and workmanship for the
period of 90 days from the date of purchase. This warranty does not apply to damage due directly or indirectly,
to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities, criminal activity, improper
installation, 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 complaint 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 • 1-888-866-5797
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