Greatneck 80134 Service manual

ROTARY TOOL
06/15
2015 GREATNECK
Operating Instructions and Parts Manual 80134
®
UNPACKING
After unpacking unit, inspect carefully
for any damage that may have occurred
during transit. Check for loose, missing,
or damaged parts. If any damage is
observed, a shipping damage claim
must be filed with carrier. Do not use the
GreatNeck®Rotary Tool if broken, bent,
cracked or damaged parts (including
labels) are noted. Any Rotary Tool that
appears damaged in any way, operates
abnormally or is missing parts should
be removed from service immediately.
If you suspect that the Rotary Tool was
subjected to shock load (a load that was
dropped suddenly, unexpectedly, etc.)
immediately discontinue use until it has
been checked by a factory authorized
service center.
Please read and save these instructions. Read through this owner’s manual carefully before using product.
Protect yourself and others by observing all safety information, warnings, and cautions. Failure to comply with
instructions could result in personal injury and/or damage to product or property. Please retain instructions for
future reference.
The following safety information is provided as a guideline to help you operate your Rotary Tool under the safest
possible conditions. Any tool or piece of equipment can be potentially dangerous to use when safety or safe
handling instructions are not known or not followed. The following safety instructions are to provide the user with
the information necessary for safe use and operation. Please read and retain these instructions for the continued
safe use of your tool. Failure to follow instructions listed below may result in serious injury. In addition, make
certain that anyone that uses the equipment understands and follows these safety instructions as well.
WARNING
Explanation of Safety Signal Words
WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in death or serious
injury.
CAUTION:Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate
injury.
CAUTION:Used without the safety alert symbol indicates a potentially hazardous situation which, if not
avoided, may result in property damage.
NOTES:Provide clarity and helpful information.

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Operating Instructions and Parts Manual 80134
ROTARY TOOL
06/15
2015 GREATNECK
Thank you very much for choosing a GreatNeck
Product!
For future reference, please complete the owner’s
record below:
Model: _______________ Purchase Date: ___________
Save the receipt, warranty and these instructions. It is
important that you read the entire manual to become
familiar with this product before you begin using it.
This tool is designed for certain applications only.
GreatNeck cannot be responsible for issues arising
from modification. We strongly recommend this tool
is not modified and/or used for any application other
than that for which it was designed. If you have
any questions relative to a particular application,
DO NOT use the tool until you have first contacted
customer service to determine if it can or should be
performed on the product.
IMPORTANT INSTRUCTIONS
AND SAFETY RULES
1. Know your tool. Read this manual carefully. Learn
the tool’s applications and limitations, as well as,
potential hazards specific to it.
2. Keep work area clean and well lit. Cluttered or dark
work areas invite accidents.
3. Keep children away. All children should be kept
away from the work area. Never let a child handle
a tool without strict adult supervision.
4. Do not operate this tool if under the influence
of alcohol or drugs. Read warning labels on
prescriptions to determine if your judgment or
reflexes are impaired while taking drugs. If there is
any doubt, do not attempt to operate.
5. Use safety equipment. Eye protection should
be worn at all times when operating this tool.
Use ANSI approved safety glasses. Everyday
eyeglasses are NOT safety glasses. Dust mask,
non-skid safety shoes, hard hat or hearing
protection should be used in appropriate
conditions.
6. Wear proper apparel. Loose clothing, gloves, neck-
ties, rings, bracelets or other jewelry may present a
potential hazard when operating this tool. Keep all
apparel clear of the tool.
7. Don’t overreach. Keep proper footing and balance
at all times when operating this tool.
8. Check for damage. Check your tool regularly. If
part of the tool is damaged it should be carefully
inspected to make sure that it can perform its
intended function correctly. If in doubt, the part
should be repaired. Refer all servicing to a qualified
technician. Consult your dealer for advice.
9. Keep away from flammables. Do not attempt
to operate this tool near flammable materials
or combustibles. Failure to comply may cause
serious injury or death.
10. Store idle tools out of the reach of children and
untrained persons. Tools may be dangerous in the
hands of untrained users.
11. Maintain tools with care.
12. Keep tools dry and clean.
13. Do not use a damaged tool. Tag damaged tools
“Do not use” until repaired.
14. 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.
15. Tool service must be performed only by qualified
repair personnel. Service or maintenance
performed by unqualified personnel could result in
a risk of injury.
16. When servicing a tool, use only identical
replacement parts. Use of unauthorized parts or
failure to follow maintenance instructions may
create a risk of injury.
17. Maintain a safe working environment. Keep the
work area well lit. Make sure there is adequate
surrounding workspace. Keep the work area free
of obstructions, grease, oil, trash, and other debris.
Do not use this product in a damp or wet location.
18. Maintain labels and nameplates on this product.
These carry important information. If unreadable
or missing, contact customer service for a
replacement.
19. Before use, read and understand all warnings,
safety precautions, and instructions as outlined
in the vehicle manufacturer’s service manual. It
is beyond the scope of this manual to properly
describe the correct procedure and test data for
each vehicle.
20. Always perform vehicle service in a properly
ventilated area. Never run an engine without
proper ventilation for its exhaust. Stop work and
take necessary steps to improve ventilation in the
work area if you develop momentary eye, nose,
or throat irritation as this indicates inadequate
ventilation.

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Operating Instructions and Parts Manual 80134
06/15
2015 GREATNECK
ROTARY TOOL
WARNING
• Disconnect the plug from the power source before
making any adjustments, changing accessories or
storing the tool.
• To avoid electrical hazards, fire hazards or damage
to the rotary tool, use proper circuit protection.
• Do not abuse the cord. Never use the cord to carry
the tools or pull the plug from an outlet. Keep cord
away from heat, oil, sharp edges or moving parts.
Replace damaged cords immediately.
NOTE: The manufacturer declines any and all
responsibility for damage to vehicles or components if
said damage is the result of unskillful handling by the
operator or of failure to observe the basic safety rules
set forth in the instruction manual.
WARNING
Read Rules for Safe Operation and Instructions
Carefully.
Important Safety Instructions
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 cannot be built into this product, but
must be supplied by the operator.
WARNING
1. Use only accessories recommended or sold
by manufacturer. Use of non-recommended
accessories may result in fire, electric shock or
injury.
2. Do not disassemble the Rotary Tool. Take it to a
qualified professional when service or repair is
required.
3. Do not operate power tools in explosive
atmospheres, such as in the presence of
flammable liquids, gasses or dust. Power tools
create sparks which may ignite the dust or fumes.
4. Only use accessories which are specifically
designed for use with a Rotary Tool.
5. Wear approved safety eye/face shield, ear
defenders and hand protection.
6. When not in use, disconnect from the power
source and store in a safe, dry childproof location.
7. Avoid body contact with grounded surfaces such
as pipes, radiators, ranges and refrigerators.
8. When operating a power tool outside, use an
outdoor extension cord marked “W-A” or “W”.
9. DO NOT use this Rotary Tool for tasks it is not
designed to perform.
10. DO NOT abuse the cord. Never use the cord to
carry the tool or pull the plug from an outlet.
11. DO NOT operate the Rotary Tool if you are
tired or under the influence of alcohol, drugs or
intoxicating medication.
12. DO NOT expose power tools to rain or wet
conditions.
13. DO NOT use the Rotary Tool if the switch does not
turn it ON or OFF.
DISPOSAL
At the end of the useful life of the GreatNeck Rotary
Tool, dispose of the components according to all state,
federal, and local regulations.
PURPOSE
The GreatNeck Rotary Tool with 35 Piece Accessory
Kit polishes, grinds, cuts, shapes and sands metals
and is great for home hobbyists or garage machinists
whether professional or novice. All tools needed are
at hand and it accepts all standard accessories and
attachments.
PRODUCT SPECIFICATIONS
Voltage: 120V/60Hz
Input Power: 1.2 AMP
No-Load Speed: 10,000-35,000 RPM
Collet Capacity: 1/8"- 3/32"
Spindle Lock: Yes
Cable Length: 6 Feet
Certificate: c-UL-us

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Operating Instructions and Parts Manual 80134
ROTARY TOOL
06/15
2015 GREATNECK
WARNING
Double insulated tools are equipped with a polarized
plug (one blade is wider than the other). This plug will
fit in a polarized plug 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.
OPERATING INSTRUCTIONS
WARNING
Ensure you read, understand and apply safety
instructions before use.
1. Always inspect, maintain and operate in
accordance with ANSI safety code for power tools
and other local safety codes and regulations.
2. Use clamps or other practical ways to secure and
support the work piece to a stable platform.
3. Do not force the tool. Use the correct tool for the
job.
4. Disconnect the plug from the power source before
making any adjustments, changing accessories or
storing the tool.
5. Check for misalignment or binding moving parts,
breakage of parts and any other condition that
may affect the tool’s operation. If damaged, have
the tool serviced before using.
6. Use only accessories that are recommended by
the manufacturer for your model.
7. Hold tool by insulated gripping surfaces when
performing an operation where the cutting tool
may contact hidden wiring or its own cord.
8. Always make sure the work surface is free from
nails and other foreign objects.
9. Never hold the work piece in one hand and the
tool in the other hand when in use. Never place the
hands near or below the cutting surface.
10. Never lay work piece on hard surfaces like
concrete, stone, etc.
11. After changing the bits and accessories or making
adjustments, make sure the collet nut and any
other adjustment devices are securely tightened.
12. Always use the correct collet size.
13. Always check accessory bits, grinding stones,
cut-off wheels, etc. for damage before each use.
14. Never use dull or damaged bits. Sharp bits must
be handled with care.
15. Never touch the bit during or immediately after
use.
16. The rotary tool is wired at the factory for 110–120V
operation. It must be connected to a 110–120V,
15A time delayed fuse or circuit breaker. To avoid
shock or fire, replace power cord immediately if it
is worn, cut or damaged in any way.
17. Avoid accidental starting. Be sure switch is OFF
before plugging in.
18. Remove adjusting keys or wrenches before turning
the tool ON.
NOTE: Most commonly used bits and accessories
with 1/8” and 3/32” shanks will fit this tool. Rotary Tool
accessories, such as a drill press designed for other
rotary tools, may not fit this tool.
WARNING
If any part is missing or damaged, do not plug the
Rotary Tool into the power source until the missing or
damaged part is replaced.
WARNING
To avoid fire or toxic reaction, never use gasoline,
naphtha, acetone, lacquer thinner or similar highly
volatile solvents to clean the tool.

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Operating Instructions and Parts Manual 80134
06/15
2015 GREATNECK
ROTARY TOOL
Fig. 3
Fig. 4
Fig. 2
Fig. 1
Fig. 3
Fig. 4
ASSEMBLY & OPERATION
SPEED SELECTION
Set Rotary Tool speed by rotating the variable speed
control dial (1) to the appropriate speed (see Fig.1).
Position the speed control dial at “1” for slowest
speed, “3” for medium speed and at “MAX” for the
highest speed.
ON/OFF SWITCH
To turn the switch ON, push on the lower part of the
ON/OFF switch (1) (see Fig. 2). To turn the switch OFF,
push on the upper part of the ON/OFF switch (2).
CHANGING THE COLLET
Some accessories require the use of different sized
collets. Collet sizes can be 1/16”, 3/32” and 1/8”. It is
important to ensure that the collet size matches the
accessory.
NOTE: This tool includes two of the most commonly
used collets: 3/32” and 1/8”.
WARNING
Using a collet that is too large for the accessory will
result in the accessory possibly being thrown from the
tool causing serious injury.
1. Turn the tool switch OFF and remove the plug from
the power source.
2. Depress the spindle lock button (1) and slowly turn
the collet nut (2) until the spindle lock button locks
the spindle. (see Fig. 3)
3. While holding the spindle lock button down, turn
the collet nut counter clockwise until it is removed.
4. Remove the collet (3) by pulling it out of the
spindle (4).
5. Insert the replacement collet into the spindle and
replace the collet nut by turning it clockwise while
holding the spindle lock button down.
NOTE: Do not tighten the collet nut without an
accessory installed in the collet. You will damage the
collet.
INSTALLING ACCESSORIES
1. Turn the switch OFF and disconnect the tool from
the power source.
2. Depress the spindle lock button (1) and slowly turn
the collet nut (2) until the spindle lock button locks
the spindle.
3. While holding the spindle lock button down, turn
the collet nut counter clockwise until the collet is
loose inside the collet nut.
4. Insert accessory (3) into collet.
NOTE:
a) Make sure the correct collet is used for the
accessory. If collet is too large, replace the collet
with the next smaller size.
b) Insert accessory at least 3/4” into the collet.
5. Press the spindle lock button and engage it
in the spindle. While holding the spindle lock
button down, hand tighten the collet by turning it
clockwise.
NOTE: Do not use pliers to tighten the collet nut. Use
the small wrench (4) supplied. Over tightening will
cause damage to the tool.
6. Pull on the accessory to ensure it is securely in
place.

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Operating Instructions and Parts Manual 80134
ROTARY TOOL
06/15
2015 GREATNECK
Accessory Kit Contents
Illustratio
n
Descriptio
n
Shape Qt
y
Aluminum oxide
grinding stone Cylinder 3/8” 1
Aluminum oxide
grinding stone Cone 5/8” 1
Aluminum oxide
grinding stone Parabolic 3/8” 1
Aluminum oxide
grinding stone Cylinder 13/32” 1
Aluminum oxide
grinding stone Cylinder 25/32” 1
Felt polishing
wheel1 2”2/
Felt polishing
wheel2”1
Mandrel1/8” for felt polishing
wheels1
Bristle brush 3/4” radial 1
Sanding band 1/2” 60-grit 3
Drum sander 1/2” with 1/8” shank 1
Sanding disc3/4” 60-grit 3
Heavy-duty
Cut-off wheel15/16” x 0.031” 6
Regular-duty
cut-off wheel15/16” x 0.025” 6
Screw mandrel
1/8” for sanding discs,
cut-off wheels, cloth
wheels & grinding
wheels
1
Dressing stone 3/8” x 1” square 1
Collet 1/8” (packed in tool) 1
1”23/3telloC
Wrench For collet nut, drum
sander & screw mandrel 1
SELECTING PROPER SPEEDS
Different speeds are required depending upon the
type of operation being performed. The following chart
outlines those basic speeds:
Operation Speed
Cutting Metal 5 – MAX
Sanding Wood 5 – MAX
Cutting Hard
Metal 5 – MAX
Engraving Metal 4 – 5
Deburring 4 – 5
Drilling Holes 4 – 5
Removing Rust 3 – 4
Sharpening 3 – 4
Polishing 1 – 2

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Operating Instructions and Parts Manual 80134
06/15
2015 GREATNECK
ROTARY TOOL
Item # Part Name Quantity
1 Screw 6
2 Left Enclosure 1
3 Screw 2
4 Cord Clamp 1
5 Cord Guard 1
6 Power Plug 1
7 Variable Speed PCB 1
8 Stator 1
9 Bearing Sleeve 1
10 Bearing 606-2Z 1
11 Carbon Brush 2
12 Carbon Brush Cap 2
13 Brush Holder 2
14 Brush Holder Support 2
Item # Part Name Quantity
15 Rotor 1
16 Fan 1
17 Bearing 626-2Z 1
18 Output Shaft 1
19 Collet 1
20 Collet Nut 1
21 Head Nut 1
22 Shaft Lock Spring 1
23 Shaft Locking Pin 1
24 Shaft Lock Button 1
25 Switch 1
26 Right Enclosure 1
27 Hook 1
Parts List
Parts Diagram
11
6
12
12
34
5
17
21
20
19
18
16
10
14
13
15
98
22
23
24
7
25
26
27
NOTE:
Not all components of the Rotary Tool are replacement items, but are illustrated as a convenient reference for location and position in
the assembly sequence.

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Operating Instructions and Parts Manual 80134
ROTARY TOOL
06/15
2015 GREATNECK
GreatNeck®ONE YEAR LIMITED WARRANTY
If within one year from the date of purchase you find any defect in material or workmanship in this GreatNeck®
product, through normal usage, either return it to the place of purchase, or send it to GreatNeck® Tools for
repair or replacement at our discretion. In order to obtain this service send your tool and proof of purchase,
transportation pre-paid, to GreatNeck® Tools LLC Q.A. Dept., 3580 E. Raines Road #3, Memphis, TN 38118. We
will not be responsible for lost or damaged goods during transportation, please insure your package.
GreatNeck® does not provide any warranty for products labeled other than GreatNeck® Tools LLC. GreatNeck®
will not provide any warranty for products subjected to abnormal use. Abnormal use includes, but is not
limited to, abuse, accident, alteration, neglect, and unauthorized or unreasonable use or repairs. This warranty
does not cover blades, bits, files, sheathes, cases, accessories, bulbs, batteries, calibration, or finishes. We
recommend that you maintain your tools and sharpen or replace blades, batteries, bits and files as necessary.
GreatNeck® reserves the right to make any changes in construction or design at any time without any obligation
in incorporating such changes to tools or equipment previously sold.
GreatNeck®is not liable for consequential or incidental damages arising from the breach of this, or any other,
warranty whether expressed, implied, or statutory. Some states do not allow the exclusion or limitation of
incidental or consequential damages, so the above exclusion may not apply to you. This warranty gives you
specific legal rights, and you may also have other rights, which vary from state to state.
This product is not guaranteed if used for industrial or commercial purposes. Please visit our website for full
warranty information. TOLL FREE HELPLINE: 1-866-458-2472.
CONTACT US
3580 E. Raines Road, Suite 3, Memphis, TN 38118
(1-866-458-2472)