Dremel 764 User Manual
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Model 764 Pumpkin Carving Tool
Owner’s Manual
HONESTLY NOW … Have you read this OWNER’S MANUAL?
Safety
•
• Assembly
Operation
•
Accessory Information
•
Warranty
•
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• Service Parts
P.O. Box 1468
Racine, Wisconsin
1-800-437-3635
http://www.dremel.com
Dremel brand products are manufactured and sold by the
Dremel Division of Robert Bosch Tool Corporation
2 610 925 497 10/04 Printed in Mexico
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General Safety Rules for All Battery Operated Tools
WARNING
!
Keep your work area clean and well lit. Cluttered
benches and dark areas invite accidents.
Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust
which may ignite the dust or fumes.
Keep bystanders, children, and visitors away
while operating a power tool.
cause you to lose control.
A battery operated tool with integral batteries or a
separate battery pack must be recharged only with
the specified charger for the battery.
may be suitable for one type of battery may create a
risk of fire when used with another battery.
Use battery operated tool only with specifically
designated battery pack.
may create a risk of fire.
Stay alert, watch what you are doing, and use
common sense when operating a power tool. Do
not use tool while tired or under the influence of
drugs, alcohol, or medication.
tention while operating power tools may result in
serious personal injury.
Dress properly. Do not wear loose clothing or jewelry. Contain long hair. Keep your hair, clothing,
and gloves away from moving parts.
clothes, jewelry, or long hair can be caught in moving parts.
Avoid accidental starting. Be sure switch is in the
locked or off position before inserting battery
Read and understand all instructions. Failure to follow all instructions listed below, may
result in electric shock, fire and/or serious personal injury.
SAVE THESE INSTRUCTIONS
Work Area
. Power tools create sparks
Distractions can
Electrical Safety
A charger that
Use of any other batteries
Personal Safety
A moment of inat-
Loose
pack.
or inserting the battery pack into a tool with the
switch on invites accidents.
Remove adjusting keys or wrenches before turning
the tool on.
a rotating part of the tool may result in personal
injury.
Do not overreach. Keep proper footing and balance at all times.
better control of the tool in unexpected situations.
Use safety equipment. Always wear eye protection.
hearing protection must be used for appropriate
conditions.
Use clamps or other practical way 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.
Do not force tool. Use the correct tool for your
application.
and safer at the rate for which it is designed.
Do not use tool if switch does not turn it on or off.
A tool that cannot be controlled with the switch is
dangerous and must be repaired.
Disconnect battery pack from tool or place the
switch in the locked or off position before making
any adjustments, changing accessories, or storing
the tool.
the risk of starting the tool accidentally.
Store idle tools out of reach of children and other
untrained persons.
hands of untrained users.
Page 2
Carrying tools with your finger on the switch
A wrench or a key that is left attached to
Proper footing and balance enable
Dust mask, non-skid safety shoes, hard hat, or
Tool Use and Care
The correct tool will do the job better
Such preventive safety measures reduce
Tools are dangerous in the
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When battery pack is not in use, keep it away from
other metal objects like: paper clips, coins, keys,
nails, screws, or other small metal objects that
can make a connection from one terminal to
another.
may cause sparks, burns, or a fire.
Maintain tools with care. Keep cutting tools sharp
and clean.
cutting edge are less likely to bind and are easier to
control.
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.
dents are caused by poorly maintained tools.
Shorting the battery terminals together
Properly maintained tools with sharp
Many acci-
Safety Rules for Cordless Rotary Tools
Accessories must be rated for at least the speed
recommended on the tool warning label.
and other accessories running over rated speed can
fly apart and cause injury.
Hold tool by insulated gripping surfaces when performing an operation where the cutting tool may
contact hidden wiring.
make exposed metal parts of the tool "live" and shock
the operator. If cutting into existing walls or other
blind areas where electrical wiring may exist is
unavoidable, disconnect all fuses or circuit breakers
feeding this worksite.
Before changing accessories remove battery pack.
Accidental starting may occur because battery tools
with a battery inserted are in the operative condition.
Be aware of the switch location, when placing the
tool down or when picking the tool up.
accidentally activate the switch.
Always hold the tool with two hands during startup
.
Contact with a "live" wire will
Wheels
You may
Use only accessories that are recommended by
the manufacturer for your model.
may be suitable for one tool may create a risk of
injury when used on another tool.
Accessories that
Service
Tool service must be performed only by qualified
repair personnel.
formed by unqualified personnel may result in a risk
of injury.
When servicing a tool, use only identical replacement parts. Follow instructions in the
Maintenance section of this manual.
thorized parts or failure to follow Maintenance
Instructions may create a risk of shock or injury.
The reaction torque of the motor can cause the
tool to twist.
Always wear safety goggles and dust mask. Use
only in well ventilated area.
devices and working in safe environment reduces
risk of injury.
After changing the bits or making any adjustments, make sure the collet nut and any other
adjustment devices are securely tightened.
adjustment device can unexpectedly shift, causing
loss of control, loose rotating components will be
violently thrown.
Do not reach in the area of the spinning bit. The
proximity of the spinning bit to your hand may not
always be obvious.
Allow brushes to run at operating speed for at least
one minute before using wheel. During this time
no one is to stand in front or in line with the brush.
Loose bristles or wires will be discharged during the
run-in time.
Service or maintenance per-
Use of unau-
Using personal safety
Loose
Page 3
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Wire and bristle brushes must never be operated
at speeds greater than 15,000/min. Direct the discharge of the spinning wire brush away from you.
Small particles and tiny wire fragments may be discharged at high velocity during the “cleaning” action
with these brushes and may become imbedded in
your skin. Bristles or wires will be discharged from
the brush at high speeds.
"Wear protective gloves and face shield with wire
or bristle brushes. Apply wire or bristle brushes
lightly to the work as only the tips of the wire/bristles do the work.
“Heavy” pressure on bristles will
cause the wire or bristle to become overstressed,
resulting in a wiping action and will cause the bristles/wire to be discharged."
Carefully handle both the tool and individual grinding wheels to avoid chipping or cracking. Install a
new wheel if tool is dropped while grinding. Do not
use a wheel that may be damaged.
Fragments
from a wheel that bursts during operation will fly
away at great velocity possibly striking you or
bystanders.
Never use dull or damaged bits. Sharp bits must
be handled with care.
Damaged bits can snap during use. Dull bits require more force to push the tool,
possibly causing the bit to break.
Use clamps to support workpiece whenever practical. Never hold a small workpiece in one hand and
the tool in the other hand while in use. Allow for
sufficient space, at least 6", between your hand
and the spinning bit.
Round material such as dowel
rods, pipes or tubing have a tendency to roll while
being cut, and may cause the bit to “bite” or jump
toward you. Clamping a small workpiece allows you
to use both hands to control the tool.
Inspect your workpiece before cutting. When cutting irregularly shaped workpieces, plan your work
so it will not slip and pinch the bit and be torn from
your hand.
For example, if carving wood, make sure
there are no nails or foreign objects in the workpiece.
Nails or foreign objects can cause the bit to jump.
Never start the tool when the bit is engaged in the
material.
The bit cutting edge may grab the mater-
ial causing loss of control of the cutter.
Avoid bouncing and snagging the wheel, especially when working corners, sharp edges etc.
This can
cause loss of control and kick-back.
The direction of feed with the bit into the material
when carving, routing or cutting is very important.
Always feed the bit into the material in the same
direction as the cutting edge is exiting from the
material (which is the same direction as the chips
are thrown).
Feeding the tool in the wrong direction,
causes the cutting edge of the bit to climb out of the
work and pull the tool in the direction of this feed.
If the workpiece or bit becomes jammed or bogged
down, turn the tool “OFF” by the switch. Wait for
all moving parts to stop and unplug the tool, then
work to free the jammed material.
If the switch to
the tool is left “ON” the tool could restart unexpectedly causing serious personal injury.
Do not leave a running tool unattended, turn power
Only when tool comes to a complete stop it is
off.
safe to put it down.
Do not grind or sand near flammable materials.
Sparks from the wheel could ignite these materials.
Do not touch the bit or collet after use. After use the
bit and collet are too hot to be touched by bare
hands.
Regularly clean the tool's air vents by compressed
air.
Excessive accumulation of powdered metal
inside the motor housing may cause electrical failures.
Do not allow familiarity gained from frequent use
of your rotary tool to become commonplace.
Always remember that a careless fraction of a second is sufficient to inflict severe injury.
Page 4
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Do not alter or misuse tool. Any alteration or modification is a misuse and may result in serious personal injury.
This product is not intended for use as a dental
drill, in human or veterinary medical applications.
Serious injury may result.
When using the steel saws, cutoff wheels, high
speed cutters or tungsten carbide cutters, always
have the work securely clamped. Never attempt to
hold the work with one hand while using any of
these accessories.
will grab if they become slightly canted in the
groove, and can kickback causing loss of control
resulting in serious injury. Your second hand should
be used to steady and guide the hand holding the
tool. When a cutoff wheel grabs, the wheel itself usually breaks. When the steel saw, high speed cutters
or tungsten carbide cutter grab, it may jump from
the groove and you could lose control of the tool.
The reason is that these wheels
Battery Disposal
Nickel-Cadmium Batteries
If equipped with a nickel-cadmium battery, the battery must be collected, recycled or disposed of in an
environmentally sound manner.
“The EPA certified RBRC Battery
Recycling Seal on the nickel-cadmium (Ni-Cd) battery indicates
Robert Bosch Tool Corporation is
voluntarily participating in an
recycle these batteries at the end of their useful
life, when taken out of service in the United States
or Canada. The RBRC program provides a convenient alterative to placing used Ni-Cd batteries into
the trash or the municipal waste stream, which
may be illegal in your area.
industry program to collect and
WARNING
!
drilling, and other construction activities contains chemicals known 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 and
other masonry products, and
• 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.
This tool is not intended for use by children ages
14 and under.
Please call 1-800-8-BATTERY for information on NiCd battery recycling and disposal bans/restrictions
in your area, or return your batteries to a
Skil/Bosch/Dremel Service Center for recycling.
Robert Bosch Tool Corporation’s involvement in
this program is part of our commitment to
preserving our environment and conserving our
natural resources.”
WARNING
!
ponent projecting from the battery terminals.
or injury may result. Prior to disposal, protect
exposed terminals with heavy insulating tape to
prevent shorting.
Some dust created by power
sanding, sawing, grinding,
Do not attempt to disassemble
the battery or remove any com-
Alkaline Batteries
Commercially available alkaline cells can be
disposed of in a municipal solid waste stream.
Page 5
Fire
A
0
A
A
0
A
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Symbols
IMPORTANT: Some of the following symbols may be used on your tool. Please study them and learn their
meaning. Proper interpretation of these symbols will allow you to operate the tool better and safer.
Symbol Name Designation/Explanation
V Volts Voltage (potential)
A Amperes Current
Hz Hertz Frequency (cycles per second)
W Watt Power
kg Kilograms Weight
min Minutes Time
s Seconds Time
Diameter Size of drill bits, grinding wheels, etc.
n
0
.../min Revolutions or reciprocation per minute Revolutions, strokes, surface speed,
0 Off position Zero speed, zero torque...
1, 2, 3, ... Selector settings Speed, torque or position settings.
I, II, III, Higher number means greater speed
No load speed Rotational speed, at no load
orbits etc. per minute
Infinitely variable selector with off Speed is increasing from 0 setting
Arrow Action in the direction of arrow
Alternating current Type or a characteristic of current
Direct current Type or a characteristic of current
Alternating or direct current Type or a characteristic of current
Class II construction Designates Double Insulated Construction tools.
Earthing terminal Grounding terminal
Warning symbol Alerts user to warning messages
Ni-Cad RBRC seal Designates Ni-Cad battery recycling program
Page 6
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Symbols
IMPORTANT: Some of the following symbols may be used on your tool. Please study them and learn their
meaning. Proper interpretation of these symbols will allow you to operate the tool better and safer.
This symbol designates
that this tool is listed by
Underwriters Laboratories.
This symbol designates that
this tool is listed by the
Canadian Standards
Association.
This symbol designates that this
tool is listed to Canadian
Standards by Underwriters
Laboratories.
This symbol designates that this
tool is listed by Underwriters
Laboratories, and listed to
Canadian Standards by
Underwriters Laboratories.
This symbol
designates that
this tool
complies
to NOM
Mexican
Standards.
Page 7
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Functional Description & Specifications
WARNING
!
tive safety measures reduce the risk of starting the tool accidentally.
Disconnect battery pack from tool or place the switch in the locked or off position
before making any assembly, adjustments or changing accessories
Pumpkin Carving Tool
ALIGNMENT
MARKS
SHAFT
LOCK
BUTTON
COLLET NUT
SWITCH
BATTERY
HOLDER
BATTERY PACK
RELEASE TAB
COVER
. Such preven-
BATTERY PACK
RELEASE TAB
BATTERY
PACK COVER
Model number 764
Voltage rating 6.0 V
No load speed no6,000-12,000/min
Collet Capacities 1/32”, 1/16”, 3/32”, 1/8”
Page 8
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Assembly
!
WARNING
ALWAYS BE SURE THE TOOL IS
IN THE “OFF” POSITION
BEFORE CHANGING ACCESSORIES, CHANGING
COLLETS OR SERVICING YOUR CORDLESS
ROTARY TOOL.
SHAFT
LOCK
BUTTON
TO LOOSEN
COLLET
(1/8" Collet is included with your tool)
COLLET
NUT
TO TIGHTEN
COLLET NUT— To loosen, first press shaft lock but-
ton and rotate the collet nut by hand until the lock
engages the shaft preventing further rotation.
CAUTION
!
Do not engage lock while the
Tool is running.
With the shaft lock engaged, loosen the collet nut by
hand. Change accessories by inserting the new one
into the collet as far as possible to minimize runout
and unbalance. With the shaft lock engaged, finger
tighten the collet nut until the accessory shank is
gripped by the collet.
Avoid excessive tightening
of the collet nut when there is no bit inserted.
COLLETS —
Four different size collets (see illustration), to accommodate different shank sizes, are
available for your Cordless Rotary Tool. To install a
different collet, remove the collet nut and remove
the old collet. Insert the unslotted end of the collet
in the hole in the end of the tool shaft. Replace col-
COLLET IDENTIFICATION CHART — Collet sizes
can be identified by the rings on the back end of
collet.
1/32" Collet has one (1) ring.
1/16" Collet has two (2) rings.
3/32" Collet has three (3) rings.
1/8" Collet has no rings.
COLLET
NUT
IDENTIFICATION
RINGS
480 1/8"
COLLET
let nut on the shaft.
481 3/32"
COLLET
482 1/16"
COLLET
483 1/32"
COLLET
Always use the collet which
matches the shank size of the accessory you plan
to use.
Never force a larger diameter shank into a
collet.
BALANCING ACCESSORIES — For precision work,
it is important that all accessories be in good balance (much the same as the tires on your automobile). To true up or balance an accessory, slightly
loosen collet nut and give the accessory or collet a
1/4 turn. Retighten collet nut and run the Tool. You
should be able to tell by the sound and feel if your
accessory is running in balance. Continue adjusting
in this fashion until best balance is achieved. To
maintain balance on abrasive wheel points, before
each use, with the wheel point secured in the collet,
turn on the Cordless Rotary Tool and run the 415
Dressing Stone lightly against the revolving wheel
point. This removes high spots and trues up the
wheel point for good balance.
Page 9
PRESS
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Remember, your new Dremel Cordless Rotary Tool
is the finest power tool of its kind. But its performance is only as good as the accessories with
which it is used. We recommend only Dremel
Inserting batteries
1. Remove the battery pack from the tool by squeezing the two tabs on the battery pack together and
slide the battery pack out of the tool.
BATTERY PACK
RELEASE TAB
BATTERY PACK COVER
2. Remove battery pack cover
from the battery holder by
squeezing the two tabs marked
PRESS and remove the battery
cover from the battery holder.
BATTERY HOLDER
3. Paying special attention to the orientation of the
batteries, insert four AA batteries into the battery
holder. Note both diagrams on the battery holder
showing correct battery direction.
BATTERY PACK COVER
RELEASE TABS
accessories be used. Use of any other accessories
may create a hazard. We hope you’ll enjoy many
years of trouble free pleasure from your Dremel
Cordless Rotary Tool.
4. Align notch in battery pack cover with arrow in
the battery holder and press together press
together. The two parts will only fit together when
the arrow and notch are aligned. The two parts
will join together with a click.
BATTERY
PACK
COVER
BATTERY
HOLDER
5. Insert the battery pack into the tool by aligning
the arrow in the pack with the arrow on the tool.
The two parts will only fit together when the two
arrows align. The two parts will join together with
a click.
ALIGNMENT
MARKS
!
WARNING
!
WARNING
may explode or leak.
Page 10
RISK OF FIRE USE ONLY 1.5V
ALKALINE BATTERIES ONLY.
Do not install backwards,
charge or put in fire.
Batteries
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Operation Instructions
Pumpkin Carving Kit Instructions
The Dremel Pumpkin Carving Kit comes with 5
templates included, so you can start carving right
away! Or you can find hundreds of additional
templates available wherever pumpkin carving
supplies are sold. A great source for free
templates is on the internet. You can easily create
your own templates as well! Any image you can
trace, you can use as a template. You can even
take a picture of your favorite person or thing,
scan it into a photo-editing program, and convert
it to black & white. There are many websites that
provide free templates or instructions how to
create your own templates. Use an internet search
engine and type in ‘Pumpkin Carving with Dremel’
or ‘Pumpkin Carving Templates’.
Important Note: The Dremel Pumpkin Carving Kit
should be used to “carve” layers of skin away from
your pumpkin so that light will “glow” through the
pumpkin. You do not cut all the way through the
pumpkin.
1. Use a knife to cut a lid for your pumpkin. Angle
the knife towards the center of the pumpkin as you
cut so that the lid will rest on top of the pumpkin
after the cut has been made.
2. Use a large spoon to clean out the entire inside
of the pumpkin. It is best if the walls of your
pumpkin are approximately 1/4”-1/2” thick.
3. Based on the size of your pumpkin, you can
enlarge or reduce the size of your template using a
copy machine if needed.
4. Using spray-on adhesive, apply your template to
the pumpkin.
5. Turn the tool on LOW and begin tracing the
areas to be removed.
6. You can use the HIGH setting for large area
material removal.
7. The key is to remove approximately the same
amount of material on your whole pumpkin to
achieve a uniform depth.
8. Once you’ve finished, remove the paper
template, place a light source, such as a candle, in
the pumpkin, dim the lights, and see how well the
light shines through your carving.
9. If you want more light to shine through, turn the
lights back on, remove the candle, and remove
additional material from your pumpkin.
Page 11
WARNING
Wear Eye Protection
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Using the Cordless Rotary Tool
The first step in learning to use the Cordless Rotary
Tool is to get the “feel” of it. Hold it in your hand and
feel its weight and balance. Feel the taper of the
housing. This taper permits the tool to be grasped
much like a pen or pencil.
When you turn on the tool for the first time, hold it
away from your face. Accessories can be damaged
during handling, and can fly apart as they come up
to speed. This is not common, but it does happen.
Practice on scrap materials first to see how the
Cordless Rotary Tool works. Keep in mind that the
work is done by the speed of the tool and by the
accessory in the collet. You should not lean on or
push the tool into the work.
For best control in close work, grip the Rotary Tool
like a pencil between your thumb and forefinger.
Instead, lower the spinning accessory lightly to the
work and allow it to touch the point at which you
want to begin. Concentrate on guiding the tool over
the work using very little pressure from your hand.
Allow the accessory to do the work.
Usually, it is best to make a series of passes with the
tool rather than attempt to do all the work in one
pass. Pass the tool back and forth over the work,
much as you would a small paint brush. For most
work, the deft, gentle touch is best. With it, you have
the best control, are less likely to make errors, and
will get the most efficient work out of the accessory.
The “handgrip” method of holding the tool is used
for operations such as cleaning a flat surface.
Page 12
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Operating Speeds For Accessories
Set the speed indicator to fit the job to achieve the
best job results when working with different
materials.
To select the right speed for each job, use a practice piece of material. Vary speed to find the best
speed for the accessory you are using and the job
to be done.
On the Model 764, there is a LO and HI switch.
When the switch indicator is in position 1 or LO, the
tool runs at about 6,000 RPM. When the switch
indicator is in position 2 or HI, the tool runs at about
12,000 RPM.
NOTE: Speed is affected by voltage changes.
Weaker batteries with reduced voltage will slow the
RPM of the tool, especially at the lowest setting. If
your tool appears to be running more slowly than
normal, replace the batteries with fresh ones to
increase tool speed.
Maintenance
Service
WARNING
!
nance performed by unauthorized personnel may
result in misplacing of internal wires and components which could cause serious hazard.
recommend that all tool service be performed by a
Dremel Service Facility.
D.C. motors
The motor in your tool has been engineered for
many hours of dependable service. To maintain peak
efficiency of the motor, we recommend it be examined every six months. Only a genuine Dremel
replacement motor specially designed for your tool
should be used.
NO USER SERVICEABLE PARTS
INSIDE. Preventive mainte-
We
The speed of Model 764 is controlled by
setting this indicator on the housing.
Cleaning
WARNING
!
cleaning.
with compressed dry air.
gles when cleaning tools with compressed air.
Ventilation openings and switch levers must be kept
clean and free of foreign matter. Do not attempt to
clean by inserting pointed objects through opening.
CAUTION
!
Some of these are: gasoline, carbon tetrachloride,
chlorinated cleaning solvents, ammonia and household detergents that contain ammonia.
Page 13
To avoid accidents, always disconnect battery pack before
The tool may be cleaned most effectively
Always wear safety gog-
Certain cleaning agents and solvents damage plastic parts.
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