Dremel 8220-1/28 Manuel utilisateur

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Operating/Safety Instructions

Consignes de fonctionnement/sécurité

Instrucciones de funcionamiento y seguridad

1-800-4-DREMEL (1-800-437-3635) www.dremel.com

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P.O. Box 081126 Racine, WI 53408-1126

8220

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2

Work area safety

Keep work area clean and well lit. Cluttered

or dark areas invite accidents.

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.

Keep children and bystanders away while

operating a power tool. Distractions can

cause you to lose control.

Electrical safety

Power tool plugs must match the outlet.

Never modify the plug in any way. Do not

use any adapter plugs with earthed

(grounded) power tools. Unmodified plugs

and matching outlets will reduce risk of electric

shock.

Avoid body contact with earthed or grounded

surfaces such as pipes, radiators, ranges

and refrigerators. There is an increased risk

of electric shock if your body is earthed or

grounded.

Do not expose power tools to rain or wet

conditions. Water entering a power tool will

increase the risk of electric shock.

Do not abuse the cord. Never use the cord

for carrying, pulling or unplugging the power

tool. Keep cord away from heat, oil, sharp

edges or moving parts. Damaged or entangled

cords increase the risk of electric shock.

When operating a power tool outdoors,

use an extension cord suitable for outdoor

use. Use of a cord suitable for outdoor use

reduces the risk of electric shock.

If operating the power tool in damp locations

is unavoidable, use a Ground Fault Circuit

Interrupter (GFCI) protected supply. Use of

an GFCI reduces the risk of electric shock.

Personal safety

Stay alert, watch what you are doing and

use common sense when operating a

Read all safety warnings and all 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

The term “power tool” in the warnings refers to your mains-operated (corded) power tool or

battery-operated (cordless) power tool.

General Power Tool Safety Warnings

Safety Symbols

The definitions below describe the level of severity for each signal word. Please read the manual

and pay attention to these symbols.

!

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.

DANGER indicates a hazardous situation which, if not avoided, will

result in death or serious injury.

WARNING indicates a hazardous situation which, if not avoided, could

result in death or serious injury.

CAUTION, used with the safety alert symbol, indicates a hazardous

situation which, if not avoided, will result in minor or moderate injury.

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3

power tool. Do not use a power tool while

you are tired or under the influence of drugs,

a

lcohol or medication. A moment of inattention

while operating power tools may result in

serious personal injury.

Use personal protective equipment. Always

wear eye protection. Protective equipment

such as dust mask, non-skid safety shoes, hard

hat, or hearing protection used for appropriate

conditions will reduce personal injuries.

Prevent unintentional starting. Ensure the

switch is in the off-position before

connecting to power source and / or battery

pack, picking up or carrying the tool.

Carrying power tools with your finger on the

switch or energizing power tools that have the

switch on invites accidents.

Remove any adjusting key or wrench before

turning the power tool on. A wrench or a key

left attached to a rotating part of the power

tool may result in personal injury.

Do not overreach. Keep proper footing and

balance at all times. This enables better

control of the power tool in unexpected

situations.

Dress properly. Do not wear loose clothing

or jewelry. Keep your hair, clothing and

gloves away from moving parts. Loose

clothes, jewelry or long hair can be caught in

moving parts.

If devices are provided for the connection

of dust extraction and collection facilities,

ensure these are connected and properly

used. Use of dust collection can reduce dust-

related hazards.

Power tool use and care

Do not force the power tool. Use the

correct power tool for your application. The

correct power tool will do the job better and

safer at the rate for which it was designed.

Do not use the power tool if the switch does

not turn it on and off. Any power tool that

cannot be controlled with the switch is

dangerous and must be repaired.

Disconnect the plug from the power source

and/or the battery pack from the power tool

before making any adjustments, changing

accessories, or storing power tools. Such

preventive safety measures reduce the risk of

starting the power tool accidentally.

Store idle power tools out of the reach of

children and do not allow persons unfamiliar

w

ith the power tool or these instructions to

operate the power tool. Power tools are

dangerous in the hands of untrained users.

Maintain power tools. Check for misalignment

or binding of moving parts, breakage of

parts and any other condition that may

affect the power tool’s operation. If damaged,

have the power tool repaired before use.

Many accidents are caused by poorly

maintained power tools.

Keep cutting tools sharp and clean. Properly

maintained cutting tools with sharp cutting

edges are less likely to bind and are easier to

control.

Use the power tool, accessories and tool

bits etc. in accordance with these instructions,

taking into account the working conditions

and the work to be performed. Use of the

power tool for operations different from those

intended could result in a hazardous situation.

Battery tool use and care

Recharge only with the charger specified

by the manufacturer. A charger that is

suitable for one type of battery pack may

create a risk of fire when used with another

battery pack.

Use power tools only with specifically

designated battery packs. Use of any other

battery packs may create a risk of injury and

fire.

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.

Shorting the battery terminals together may

cause burns or a fire.

Under abusive conditions, liquid may be

ejected from the battery, avoid contact. If

contact accidentally occurs, flush with

water. If liquid contacts eyes, additionally

seek medical help. Liquid ejected from the

battery may cause irritation or burns.

Service

Have your power tool serviced by a qualified

repair person using only identical

replacement parts. This will ensure that the

safety of the power tool is maintained.

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Safety warnings common for

grinding, sanding, wire brushing,

polishing, carving or abrasive

cutting-off operations:

This power tool is intended to function as a

grinder, sander, wire brush, polisher,

carving or cut-off tool. Read all safety

warnings, instructions, illustrations and

specifications provided with this power

tool. Failure to follow all instructions listed

below may result in electric shock, fire and/or

serious injury.

Do not use accessories which are not

specifically designed and recommended by

the tool manufacturer. Just because the

accessory can be attached to your power tool,

it does not assure safe operation.

The RATED SPEED of the accessories

must be at least equal to the operating

speed setting marked on the power tool.

Accessories running faster than their RATED

SPEED can break and fly apart.

The outside diameter and the thickness of

your accessory must be within the capacity

rating of your power tool. Incorrectly sized

accessories cannot be adequately controlled.

The arbor size of wheels, sanding drums or

any other accessory must properly fit the

spindle or collet of the power tool.

Accessories that do not match the mounting

hardware of the power tool will run out of

balance, vibrate excessively and may cause

loss of control.

Mandrel mounted wheels, sanding drums,

cutters or other accessories must be fully

inserted into the collet or chuck. If the

mandrel is insufficiently held and/or the

overhang of the wheel is too long, the mounted

wheel may become loose and be ejected at

high velocity.

Do not use a damaged accessory. Before

each use inspect the accessory such as

abrasive wheels for chips and cracks,

sanding drum for cracks, tear or excess

wear, wire brush for loose or cracked wires.

If power tool or accessory is dropped,

inspect for damage or install an undamaged

accessory. After inspecting and installing

an accessory, position yourself and

bystanders away from the plane of the

rotating accessory and run the power tool

at maximum no-load speed for one minute.

Damaged accessories will normally break apart

during this test time.

Wear personal protective equipment.

Depending on application, use face shield,

safety goggles or safety glasses. As

appropriate, wear dust mask, hearing

protectors, gloves and workshop apron

capable of stopping small abrasive or

workpiece fragments. The eye protection

must be capable of stopping flying debris

generated by various operations. The dust

mask or respirator must be capable of filtrating

particles generated by your operation.

Prolonged exposure to high intensity noise may

cause hearing loss.

Keep bystanders a safe distance away from

work area. Anyone entering the work area

must wear personal protective equipment.

Fragments of workpiece or of a broken

accessory may fly away and cause injury

beyond immediate area of operation.

Hold power tool by insulated gripping

surfaces only, when performing an

operation where the cutting accessory may

contact hidden wiring. Cutting accessory

contacting a “live” wire may make exposed

metal parts of the power tool “live” and could

give the operator an electric shock.

Always hold the tool firmly in your hand(s)

during the start-up. The reaction torque of the

motor, as it accelerates to full speed, can cause

the tool to twist.

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. Clamping a small workpiece

allows you to use your hand(s) to control the

tool. Round material such as dowel rods, pipes

or tubing have a tendency to roll while being

cut, and may cause the bit to bind or jump

toward you.

Position the cord clear of the spinning

accessory. If you lose control, the cord may be

cut or snagged and your hand or arm may be

pulled into the spinning accessory.

Never lay the power tool down until the

accessory has come to a complete stop.

The spinning accessory may grab the surface

and pull the power tool out of your control.

After changing the bits or making any

adjustments, make sure the collet nut,

chuck or any other adjustment devices are

securely tightened. Loose adjustment devices

can unexpectedly shift, causing loss of control,

loose rotating components will be violently

thrown.

Safety Rules for Rotary Tools

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Safety Rules for Rotary Tools - (cont.)

Do not run the power tool while carrying it

at your side. Accidental contact with the

spinning accessory could snag your clothing,

pulling the accessory into your body.

Regularly clean the power tool’s air vents.

The motor’s fan will draw the dust inside the

housing and excessive accumulation of

powdered metal may cause electrical hazards.

Do not operate the power tool near

flammable materials. Sparks could ignite

these materials.

Do not use accessories that require liquid

coolants. Using water or other liquid coolants

may result in electrocution or shock.

Use only in well-ventilated area. Working in a

safe environment reduces risk of injury.

Allow for sufficient space, at least 6”,

between your hand and the spinning bit. Do

not reach in the area of the spinning bit. The

proximity of the spinning bit to your hand may

not always be obvious.

Do not touch the bit or collet after use. After

use the bit and collet are too hot to be touched

by bare hands.

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.

Kickback and Related Warnings

Kickback is a sudden reaction to a pinched or

snagged rotating wheel, backing pad, brush or

any other accessory. Pinching or snagging

causes rapid stalling of the rotating accessory

which in turn causes the uncontrolled power

tool to be forced in the direction opposite of the

accessory’s rotation.

For example, if an abrasive wheel is snagged

or pinched by the workpiece, the edge of the

wheel that is entering into the pinch point can

dig into the surface of the material causing the

wheel to climb out or kickout. The wheel may

either jump toward or away from the operator,

depending on direction of the wheel’s

movement at the point of pinching. Abrasive

wheels may also break under these conditions.

Kickback is the result of power tool misuse

and/or incorrect operating procedures or

conditions and can be avoided by taking proper

precautions as given below.

Maintain a firm grip on the power tool and

position your body and arm to allow you to

resist kickback forces. The operator can

control kickback forces, if proper precautions

are taken.

Use special care when working corners,

sharp edges etc. Avoid bouncing and

snagging the accessory. Corners, sharp

edges or bouncing have a tendency to snag the

rotating accessory and cause loss of control or

kickback.

Do not attach a toothed saw blade. Such

blades create frequent kickback and loss of

control.

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.

When using rotary files, cut-off wheels,

high-speed cutters or tungsten carbide

cutters, always have the work securely

clamped. These wheels will grab if they

become slightly canted in the groove, and can

kickback. When a cut-off wheel grabs, the

wheel itself usually breaks. When a rotary file,

high-speed cutter or tungsten carbide cutter

grabs, it may jump from the groove and you

could lose control of the tool.

Safety warnings specific for grinding

and abrasive cutting-off operations:

Use only wheel types that are

recommended for your power tool and only

for recommended applications. For

example: do not grind with the side of a cut-

off wheel. Abrasive cut-off wheels are intended

for peripheral grinding, side forces applied to

these wheels may cause them to shatter.

For threaded abrasive cones and plugs use

only undamaged wheel mandrels with an

unrelieved shoulder flange that are of

correct size and length. Proper mandrels will

reduce the possibility of breakage.

Do not ′′jam′′ a cut-off wheel or apply

excessive pressure. Do not attempt to make

an excessive depth of cut. Overstressing the

wheel increases the loading and susceptibility

to twisting or snagging of the wheel in the cut

and the possibility of kickback or wheel

breakage.

Do not position your hand in line with and

behind the rotating wheel. When the wheel,

at the point of operation, is moving away from

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Additional Safety Warnings

your hand, the possible kickback may propel

the spinning wheel and the power tool directly

at you.

When wheel is pinched, snagged or when

interrupting a cut for any reason, switch off

the power tool and hold the power tool

motionless until the wheel comes to a

complete stop. Never attempt to remove the

cut-off wheel from the cut while the wheel is

in motion otherwise kickback may occur.

Investigate and take corrective action to

eliminate the cause of wheel pinching or

snagging.

Do not restart the cutting operation in the

workpiece. Let the wheel reach full speed

and carefully re-enter the cut. The wheel may

bind, walk up or kickback if the power tool is

restarted in the workpiece.

Support panels or any oversized workpiece

to minimize the risk of wheel pinching and

kickback. Large workpieces tend to sag under

their own weight. Supports must be placed

under the workpiece near the line of cut and

near the edge of the workpiece on both sides of

the wheel.

Use extra caution when making a ′′pocket

cut′′ into existing walls or other blind areas.

The protruding wheel may cut gas or water

pipes, electrical wiring or objects that can cause

kickback.

Safety warnings specific for wire

brushing operations:

Be aware that wire bristles are thrown by

the brush even during ordinary operation.

Do not overstress the wires by applying

excessive load to the brush. The wire bristles

can easily penetrate light clothing and/or skin.

Allow brushes to run at operating speed for

at least one minute before using them.

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.

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 use of these brushes and

may become imbedded in your skin.

Safety Rules for Rotary Tools - (cont.)

GFCI and personal protection devices like

electrician’s rubber gloves and footwear will

further enhance your personal safety.

Do not use AC only rated tools with a DC

power supply. While the tool may appear to

work, the electrical components of the AC

rated tool are likely to fail and create a hazard

to the operator.

Keep handles dry, clean and free from oil

and grease. Slippery hands cannot safely

control the power tool.

Develop a periodic maintenance schedule

for your tool. When cleaning a tool be

careful not to disassemble any portion of

the tool since internal wires may be

misplaced or pinched or safety guard return

springs may be improperly mounted.

Certain cleaning agents such as gasoline,

carbon tetrachloride, ammonia, etc. may

damage plastic parts.

Ensure the switch is in the off position

before inserting battery pack. Inserting the

battery pack into power tools that have the

switch on invites accidents.

Some dust created by

power sanding, sawing,

grinding, 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.

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1. This manual contains instructions for

battery charger model 876. Do not substitute

any other charger.

2. Before using battery charger, read all

instructions and cautionary markings on (1)

battery charger, (2) battery pack, and (3)

product using battery.

3. Charge only Dremel rechargeable

batteries listed on page 11. Other types of

batteries may burst causing personal injury and

damage.

4. Charge battery pack in temperatures

above +32 degrees F (0 degrees C) and

below +113 degrees F (45 degrees C). Store

tool and battery pack in locations where

temperatures will not exceed 120 degrees F

(49 degrees C). This is important to prevent

serious damage to the battery cells.

5. Do not recharge battery in damp or wet

environment. Do not expose charger to rain

or snow. Water entering battery charger may

result in electric shock or fire.

6. Battery leakage may occur under extreme

usage or temperature conditions. Avoid

contact with skin and eyes. The battery liquid

is caustic and could cause chemical burns to

tissues. If liquid comes in contact with skin,

wash quickly with soap and water. If the liquid

contacts your eyes, flush them with water for a

minimum of 10 minutes and seek medical

attention.

7. Place charger on flat nonflammable

surfaces and away from flammable

materials when recharging battery pack.

Carpeting and other heat insulating surfaces

block proper air circulation which may cause

overheating of the charger and battery pack. If

smoke or melting of the charger or battery pack

is observed, unplug the charger immediately

and do not use the battery pack or charger.

Contact customer service immediately.

8. Make sure cord is located so that it will

not be stepped on, tripped over, or

otherwise subjected to damage or stress.

Damaged plug and cord may result in electric

shock or fire.

9. Disconnect the charger by pulling the

plug rather than the cord. Do not operate

charger with damaged cord or plug; have

them replaced immediately. Damaged plug or

cord may result in electric shock or fire.

10. Do not insert battery pack in charger if

battery pack case is cracked. Using

damaged battery pack may result in electric

shock or fire.

11. Do not disassemble charger or operate

the charger if it has received a sharp blow,

been dropped or otherwise damaged in

anyway. Incorrect reassembly or damage may

result in electric shock or fire.

12. Before each use, check the battery

charger, cable and plug. If damage is

detected, do not use the battery charger.

Never open the battery charger yourself,

take it to a Dremel Factory Service Center,

or qualified serviceman only using original

spare parts. Incorrect reassembly may result

in electric shock or fire.

13. Do not use attachments not

recommended or sold by Dremel. Using

attachments not recommended may result in

electric shock or fire.

14. Do not store battery pack in charger.

Battery pack stored in charger over a long

period of time could lead to battery pack

damage and fire.

15. Unplug charger from outlet before

storage, attempting any maintenance or

cleaning. Such preventive safety measures

reduce the risk of electric shock or fire.

16. Keep the battery charger clean by

blowing compressed air on charger vents

and wiping the charger housing with a

damp cloth. Contamination may result in

electric shock or fire.

17. Replace battery pack if a substantial

drop in operating time per charge is

observed. Battery pack may be nearing the

end of its life.

R

ead and understand all instructions. Failure to follow all instructions

listed below, may result in electric shock, fire and/or serious personal

injury.

IMPORTANT SAFETY AND OPERATING INSTRUCTIONS

SAVE THESE INSTRUCTIONS

Charger Safety Rules

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When batteries are not

in tool or charger, keep

them away from metal objects. For

example, to protect terminals from shorting,

DO NOT place batteries in a tool box or

pocket with nails, screws, keys, etc. Fire or

injury may result.

DO NOT PUT BATTERIES INTO FIRE OR

EXPOSE TO HIGH HEAT. They may

explode.

Battery Care

Battery Disposal

Do not attempt to disas-

semble the battery or

remove any com ponent projecting from

the battery terminals. Fire or injury may

result. Prior to disposal, protect exposed

terminals with heavy insulating tape to

prevent shorting.

LITHIUM-ION BATTERIES

If equipped with a lithium-ion battery, the battery

must be collected, recycled or disposed of in

an environ mentally sound manner.

“The EPA certified RBRC

Battery Recycling Seal on the

lithium-ion (Li-ion) battery

indicates Robert Bosch Tool

Corporation is voluntarily

participating in an industry

program to collect and 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 Li-ion batteries into

the trash or the munici pal waste stream, which

may be illegal in your area.

Please call 1-800-8-BATTERY for information

on Li-ion battery recycling and disposal

bans/restrictions in your area, or return your

batteries to a 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.”

FCC Caution:

The manufacturer is not responsible for radio

i

nterference caused by unauthorized

modifications to this equipment. Such

modifications could void the user’s authority

to operate the equipment.

This device complies with Part 15 of the FCC

Rules. Operation is subject to the following two

conditions:

1) This device may not cause harmful

interference, and

2) This device must accept any interference

received, including interference that may

cause undesired operation.

NOTE! This equipment has been tested and

found to comply with the limits for a Class B

digital devices, pursuant to Part 15 of the FCC

rules. These limits are designed to provide

reasonable protection against harmful

interference in a residential installation. This

equipment generates uses and can radiate

radio frequency energy and, if not installed and

u

sed in accordance with the instructions, may

cause harmful interference to radio

communications. However, there is no

guarantee that interference will not occur in a

particular installation. If this equipment does

cause harmful interference to radio or

television reception, which can be determined

by turning the equipment off and on, the user is

encouraged to try to correct the interference by

one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the

equipment and receiver.

• Connect the equipment into an outlet on a

circuit different from that to which the

receiver is connected.

• Consult the dealer or an experienced

radio/TV technician for help.

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9

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 Designation / Explanation

V Volts (voltage)

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

No load speed (rotational speed at no load)

n Rated speed (maximum attainable speed)

.../min

Revolutions or reciprocation per minute (revolutions, strokes, surface speed,

orbits etc. per minute)

0 Off position (zero speed, zero torque...)

1, 2, 3, ...

I, II, III,

Selector settings (speed, torque or position settings. Higher number means

greater speed)

0

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)

1600A012FX.qxp_8220 1/30/17 12:41 PM Page 9

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Symbols (continued)

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 Designation / Explanation

Designates Li-ion battery recycling program

Designates Ni-Cad battery recycling program

Alerts user to read manual

Alerts user to wear eye protection

This symbol designates that this tool is listed by Underwriters Laboratories.

This symbol designates that this component is recognized by Underwriters

Laboratories.

This symbol designates that this tool is listed by Underwriters Laboratories,

to United States and Canadian Standards.

This symbol designates that this tool is listed by the Canadian Standards

Association.

This symbol designates that this tool is listed by the Canadian Standards

Association, to United States and Canadian Standards.

This symbol designates that this tool is listed by the Intertek Testing

Services, to United States and Canadian Standards.

This symbol designates that this tool complies to NOM Mexican Standards.

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Disconnect battery pack from tool before making any assembly,

adjustments or changing accessories. Such preventive safety measures

reduce the risk of starting the tool accidentally.

Model number 8220

Voltage rating 10.8V/12V MAX

Rated speed n 5,000 - 35,000/min

Collet capacities 1/32, 1/16", 3/32", 1/8"

Functional Description and Specifications

Model 8220 Cordless Rotary Tool

COLLET

WRENCH

ON/OFF SWITCH

SHAFT LOCK

BUTTON

VARIABLE SPEED

ADJUSTER

VENTILATION

OPENINGS

HANGER

COLLET

NUT

COLLET

SHAFT

Charger 876

Charge Time 1 Hour

Voltage rating 120 V 60 Hz

Battery pack 875, B812-01, B812-02,

and B812-03

Capacity 1.3 Ah, 1.5 Ah, or 2 Ah

BATTERY

RELEASE TABS

BATTERY

PACK

FUEL GAUGE

EZ TWIST™

INTEGRATED

WRENCH/NOSE CAP

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COLLET NUT — To loosen, first press shaft

lock button and rotate the shaft by hand until

the lock engages the shaft preventing further

rotation. Your Dremel 8220 is equipped with a

quick collet lock mechanism. This mechanism

engages the output shaft in 8 separate

locations on the shaft for easier operation.

Do not engage lock while

the Rotary Tool is running.

With the shaft lock engaged use the collet

wrench to loosen the collet nut if necessary.

The collet nut must be loosely threaded on

when inserting an accessory. 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.

EZ TWIST™ INTEGRATED

WRENCH/NOSE CAP

The nose cap of your tool has an integrated

wrench allowing you to loosen and tighten the

collet nut without the use of the standard collet

wrench. Unscrew the nose cap from the tool,

line-up steel insert on inside of cap with collet

nut. With the shaft lock engaged twist nose cap

clockwise to tighten, and counter-clockwise to

loosen.

Assembly

Disconnect battery pack from tool before making any assembly,

adjustments or changing accessories. Such preventive safety measures

reduce the risk of starting the tool accidentally.

COLLET NUT

COLLET

WRENCH

SHAFT LOCK

BUTTON

TO

LOOSEN

TO

TIGHTEN

COLLET

NUT

TO

LOOSEN

TO

TIGHTEN

SHAFT LOCK

BUTTON

EZ TWIST™

INTEGRATED

WRENCH/NOSE CAP

COLLETS — Four different size collets (see

illus tration), to accommodate different shank

sizes, are avail able for your 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 collet nut on the shaft.

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.

Note: Most rotary tool kits do not include all

four collets sizes.

COLLET

NUT

IDENTIFICATION

RINGS

480

1/8"

COLLET

481

3/32"

COLLET

482

1/16"

COLLET

483

1/32"

COLLET

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. (Included in

most tool kits on the tool)

1600A012FX.qxp_8220 1/30/17 12:41 PM Page 12

13

Operating Instructions

FIXING STUCK COLLETS – It is possible for a

c

ollet to get stuck within the collet nut especially if

a collet nut is tightened onto the tool without a bit

in place. If this happens, the collet can be

removed from the collet nut by pushing the shank

of an accessory into the hole in the collet nut.

This should cause the collet to pop out of the

collet nut.

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

a

ccessory or collet a 1/4 turn. Re tighten collet nut

and run the Rotary 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 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.

The hanger is provided for the use of hanging

your tool while using the flex-shaft or for storage.

If you do not use the hanger, snap it back into

place so it will be out of the way while the tool is

in use.

Dremel 8220

Thank you for purchasing the Dremel 8220. This

product was designed by the many Dremel

users who passionately use their rotary tools

daily. This tool was designed to give you the

ultimate performance when working on projects.

The Dremel 8220 is one of the MOST versatile

cordless rotary tool available today. It has a wide

speed range including a high performance motor

that allows the tool to maintain its speed under

load. The design of the tool also contains plenty

of soft grip so the tool can be held comfortably in

many positions. The quick collet lock mechanism

makes locking the output shaft easier for

changing accessories. You will appreciate the

many applications that the Dremel 8220 can

easily tackle.

Rotary Tool Introduction

The Rotary Tool has a small, powerful electric

motor, is comfort able in the hand, and is made to

accept a large variety of accessories including

abrasive wheels, drill bits, wire brushes,

polishers, engraving cutters, router bits, cutting

wheels and attachments. Accessories come in a

variety of shapes and permit you to do a number

of different jobs. As you be come familiar with the

range of accessories and their uses, you will

learn just how versatile the Rotary Tool is. You’ll

see dozens of uses you hadn’t thought of before.

The real secret of the Rotary Tool is its speed. To

understand the advantages of its high speed, you

have to know that the standard portable electric

drill runs at speeds up to 2,800 revolutions per

minute. The Rotary Tool operates at speeds up to

30,000 revolutions per minute. The typical electric

drill is a low-speed, high torque tool; the Rotary

Tool is just the opposite – a high-speed, low

torque tool. The major difference to the user is

that in the high speed tools, the speed combined

with the acces sory mounted in the collet does the

work. You don’t apply pressure to the tool, but

simply hold and guide it. In the low speed tools,

you not only guide the tool, but also apply

pressure to it, as you do, for example, when drilling

a hole.

It is this high speed, along with its compact size

and wide variety of special accessories and

attachments, that makes the Rotary Tool differ ent

from other tools. The speed enables it to do jobs

low speed tools cannot do, such as cutting

hardened steel, en graving glass, etc.

Getting the most out of your Rotary Tool is a

matter of learning how to let this speed work for

you. To learn about more uses and the versatility

of Dremel accessories and attachments refer to

this Owner's Manual or check our website at

www.Dremel.com.

Using the Rotary Tool

The first step in learning to use the 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.

Always hold the tool

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.

WARNING

Wear Eye Protection

1600A012FX.qxp_8220 1/30/17 12:41 PM Page 13

14

To select the right speed for each job, use a

practice piece of material.

SLIDE "ON/OFF" SWITCH

The tool is switched "ON" by the slide switch

located on the topside of the motor housing.

TO TURN THE TOOL "ON", slide the switch

button forward.

TO TURN THE TOOL "OFF", slide the switch

button backward.

HIGH PERFORMANCE MOTOR

Your tool is equipped with a high performance

rotary tool motor. This motor expands the

versatility of the rotary tool by driving additional

attachments such as the Dremel Multi-Saw

and Dremel Planer.

ELECTRONIC MONITORING

Your tool is equipped with an internal electronic

monitoring system that provides a “soft start”,

which will reduce the stresses that occur from

a high torque start. The system also helps to

maximize motor and battery performance by

by limiting the current to the tool when overload

and stall conditions occur. The motor and

battery pack are protected by limiting the

current to the motor in these situations.

VARIABLE SPEED ADJUSTER

Your tool is equipped with a variable speed

adjuster. The speed may be adjusted during

operation by sliding the adjuster back or forth

between any one of the settings.

You can refer to the charts on pages 27 – 30

to determine the proper speed, based on the

materi al being worked and the type of

accessory being used. These charts enable

you to select both the correct acces sory and

the optimum speed at a glance.

Operating Speeds

Whenever you hold the

t

ool, be careful not to

cover the air vents with your hand. This

blocks the air flow and causes the motor to

overheat.

For best control in close work, grip the Rotary

Tool like a pencil between your thumb and

forefinger (Figure A).

The “Golf Grip” method of holding the tool can

b

e used for more aggressive operations such

as grinding a flat surface or using cutoff

wheels (Figure B).

Practice on scrap materials first to see how the

Rotary Tool's high speed action performs. 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 during use.

Instead, lower the spinning accessory lightly to

the work and allow it to touch the point at which

you want cutting (or sanding or etching, etc.) to

begin. Con centrate 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. To make a cut, for example,

pass the tool back and forth over the work,

much as you would a small paint brush. Cut a

little material on each pass until you reach the

desired depth. For most work, the gentle

touch is best. With it, you have the best

control, are less likely to make errors, and will

get the most effi cient work out of the

accessory.

Questions or Problems? Call

1-800-437-3635

or check our website at

www.Dremel.com

FIG. A

FIG. B

1600A012FX.qxp_8220 1/30/17 12:41 PM Page 14

15

T

he speed of Rotary Tool is controlled by

setting this adjuster on the housing.

Settings for Approximate Revolutions.

Switch Setting Speed Range

5 15,000-7,000 RPM

*10 17,000-10,000 RPM

15 13,000-17,000 RPM

20 18,000-23,000 RPM

25 23,000-27,000 RPM

30 28,000-35,000 RPM

* Wire Brush Setting.

Needs for Slower Speeds

Certain materials, however, (some plastics and

precious metals, for ex ample) require a

relatively slow speed because at high speed

the friction of the accessory generates heat

and may cause damage to the material.

Slow speeds (15,000 RPM or less) usually are

best for polishing operations employing the felt

polishing ac ces sories. They may also be best

for working on deli cate projects as “eggery”

work, delicate wood carving and fragile model

parts. All brushing applications require

lower speeds to avoid wire discharge from

the holder.

Higher speeds are better for carving, cutting,

routing, shaping, cutting dadoes or rabbets in

wood.

Hardwoods, metals and glass require high

speed operation, and drilling should also be

done at high speeds.

Many applications and accessories in our line

will provide the best performance at full speed,

but for certain materials, applications, and

accessories, you need slower speeds, which is

the reason our variable speed models are

available.

T

o aid you in determining the optimum

operational speed for differ ent materials and

different accessories, we have construct ed a

series of tables that appear on pages 27 – 30.

By referring to these tables, you can discover

the recommended speeds for each type of

accessory. Look these tables over and

become familiar with them.

Ultimately, the best way to determine the

correct speed for work on any material is to

practice for a few minutes on a piece of scrap,

even after referring to the chart. You can

quickly learn that a slower or faster speed is

more effective just by observing what hap pens

as you make a pass or two at different speeds.

When working with plastic, for example, start

at a slow rate of speed and increase the speed

until you observe that the plastic is melting at

the point of contact. Then reduce the speed

slight ly to get the optimum working speed.

Some rules of thumb in regard to speed:

1. Plastic and other materials that melt at low

temperatures should be cut at low speeds.

2. Polishing, buffing and cleaning with any

type of bristle brush must be done at speeds

not greater than 15,000 RPM to prevent

damage to the brush from bristles flying

toward operator.

3. Wood should be cut at high speed.

4. Iron or steel should be cut at high speed. If

a high speed steel cutter starts to chatter —

this normally means it is running too slow.

5. Aluminum, copper alloys, lead alloys, zinc

alloys and tin may be cut at various speeds,

depending on the type of cutting being

done. Use paraffin or other suitable

lubricant on the cutter to prevent the cut

material from adhering to the cutter teeth.

Increasing the pressure on the tool is not the

answer when it is not performing as you think it

should. Perhaps you should be using a

different accessory, and perhaps an

adjustment in speed would solve the problem.

Leaning on the tool does not help.

Let speed do the work!

All Dremel Rotary Tool attachments are

compatible with your tool, but you may

experience reduced run times on the battery

when using certain attachments.

10

20

30

Use only Dremel

®

, high-performance accessories.

VARIABLE SPEED

ADJUSTER

1600A012FX.qxp_8220 1/30/17 12:41 PM Page 15

16

INSERTING AND RELEASING

BATTERY PACK

Release battery pack from tool by pressing on

both sides of the battery release tabs and pull

away from housing.

To insert battery, align battery and slide

battery pack into tool until it locks into position.

Do not force.

FUEL GAUGE

T

his tool is equipped with a fuel gauge that

tells you how much charge your battery has.

A fully charged battery is indicated when all

three LED lights are illuminated. As the

battery discharges, the lights will turn off one

by one until only one light is on. When the

last light starts "flashing", the battery is

almost empty. When the battery is dead, the

tool will automatically turn off. This will be a

sudden stop as opposed to a gradual

winding down of the tool. Simply recharge

the battery and reuse.

3 lights - 100% charge remaining

2 lights – 50% charge remaining

1 light - 25% charge remaining

1

"flashing" light - tool is about to shut off

3 “side to side” lights – battery charge is too

low to run tool. Recharge the battery.

3 “flashing” lights – battery is too hot or too

cold for use. Turn tool off and let battery

return to normal operating temperature before

resuming use.

CHARGER INDICATORS, SYMBOLS

AND MEANING

If the indicator lights are “OFF”, the charger

is not receiving power from power supply

outlet.

If the green indicator light is

“BLINKING”, the battery pack is

being fast-charged. Fast-

charging will automatically stop when the

battery pack is fully charged.

Fast-charging means that the battery will be

fully charged in one hour.

If the green indicator light is

"ON", the charger is

plugged in but the battery

pack is not inserted, or the battery pack is

fully charged, or the battery pack is too hot or

cold for fast-charging. The charger will

automatically switch to fast-charging once a

suitable temperature is reached.

IMPORTANT CHARGING NOTES

1. The charger was designed to fast charge

the battery only when the battery temperature

is between 32˚F (0˚C) and 113˚F (45˚C). If the

battery pack is too hot or too cold, the charger

will not fast charge the battery. (This may

happen if the battery pack is hot from heavy

use). When the battery temperature returns to

between 32˚F (0˚C) and 113˚F (45˚C), the

charger will automatically begin charging.

2. A substantial drop in operating time per

charge may mean that the battery pack is

nearing the end of its life and should be replaced.

3. Remember to unplug charger during storage

period.

4. If battery does not charge properly:

a. Check for voltage at outlet by plugging in

some other electrical device.

b. Check to see if outlet is connected to a

light switch which turns power “off” when lights

are turned off.

BATTERY

RELEASE

TABS

BATTERY

PACK

HOUSING

1600A012FX.qxp_8220 1/30/17 12:41 PM Page 16

17

c. Check battery pack terminals for dirt.

C

lean with cotton swab and alcohol if

necessary.

d. If you still do not get proper charging,

take or send tool, battery pack and charger to

y

our local Dremel Service Center.

Note: Use of chargers or battery packs not

sold by Dremel will void the warranty.

876 1-HOUR CHARGER

Plug charger cord into your standard power

outlet, then insert battery pack into charger.

The charger’s green indicator light will begin to

“BLINK”. This indicates that the battery is

receiving a fast charge. Fast-charging will

automatically stop when the battery pack is

fully charged.

When the indicator light stops “BLINKING”

(and becomes a steady green light) fast

charging is complete.

The battery pack may be used even though

the light may still be blinking. The light may

require more time to stop blinking depending

on temperature.

The purpose of the green light is to indicate

that the battery pack is fast-charging. It does

not indicate the exact point of full charge.

The light will stop blinking in less time if the

battery pack was not completely discharged.

When charging several batteries in sequence,

the charge time may slightly increase.

When the battery pack is fully charged,

unplug the charger (unless you're charging

another battery pack) and slip the battery

pack back into the tool.

Charging Battery Pack

GREEN

LIGHT

CHARGER

BATTERY

PACK

1600A012FX.qxp_8220 1/30/17 12:41 PM Page 17

18

Service

NO USER

SERVICEABLE PARTS

INSIDE. Preventive maintenance

performed by un au thorized personnel

may result in misplacing of internal wires

and components which could cause

serious hazard. We recom mend that all tool

service be performed by a Dremel Service

Center. SERVICE MEN: Disconnect tool and/or

charger from power source before servicing.

BATTERIES

Be alert for battery packs that are nearing

their end of life. If you notice decreased

tool performance or significantly shorter

running time between charges then it is time

to replace the battery pack. Failure to do so

can cause the tool to operate improperly or

damage the charger.

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.

Cleaning

To avoid accidents,

always disconnect the

tool and/or charger from the power supply

before cleaning. The tool may be cleaned

most effectively with com pressed dry air.

Always wear safety goggles 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.

Certain cleaning agents

and solvents damage

plastic parts. Some of these are: gasoline,

car bon tetrachloride, chlorinated cleaning

solvents, ammonia and household detergents

that contain ammonia.

Maintenance

Extension Cords

If an extension cord is

necessary, a cord with

adequate size conductors that is capable

of carrying the current necessary for your

tool must be used. This will prevent

excessive voltage drop, loss of power or

overheating. Grounded tools must use 3-wire

extension cords that have 3-prong plugs and

receptacles.

NOTE: The smaller the gauge number, the

higher the cord capacity.

RECOMMENDED SIZES OF EXTENSION CORDS

120 VOLT ALTERNATING CURRENT TOOLS

Tool’s

Ampere

Rating

Cord Size in A.W.G. Wire Sizes in mm

2

Cord Length in Feet Cord Length in Meters

25 50 100 150

15 30 60 120

3-6

6-8

8-10

10-12

12-16

18

16

14

16

12

16

14

–

14

12

–

0.75

1.0

–

0.75

1.0

2.5

–

1.5

2.5

4.0

–

2.5

4.0

–

1600A012FX.qxp_8220 1/30/17 12:41 PM Page 18

19

COLLETS

If you expect to use a variety of accessories,

we recommend that in the beginning you

purchase a complete set of four collets. Store

these so that you will have the proper size of

collet for any accessory or drill bit you want

to use. Currently, the 1/8", 3/32",1/32" and

1/16" collets accommodate all of the avail -

able Dremel accessories. 1/8" collets are

included in most rotary tool kits.

MANDRELS

A mandrel is a shank with a threaded or screw

head, which are required when you use

polishing accessories, cutting wheels, sanding

discs, and pol ish ing points. The reason

mandrels are used is that sanding discs,

cutting wheels and similar accesso ries must

be replaced frequently. The mandrel is a per -

manent shank, allowing you to replace only

the worn head when necessary, thus saving

the expense of replacing the shaft each time.

Screw Mandrel No 401

This is a screw mandrel used with the felt

polishing tip and felt polishing wheels. 1/8"

shank.

Small Screw Mandrel No 402

This is a mandrel with a small screw at its tip,

and is used with emery and fiberglass cutting

wheels, sanding discs and polishing wheels.

1/8" shank.

EZ Lock Mandrel No 402

The Dremel EZ Lock makes accessory

changes easy as PULL - TWIST - RELEASE.

The one-piece mandrel design simplifies the

process of changing cutting wheels, buffs

and detail abrasive brushes (EZ Lock

compatible accessories).

EZ Drum™ Mandrel No EZ407SA

The Dremel EZ Drum makes accessory

changes easy as PULL - INSERT - PRESS

DOWN. The one-piece mandrel design

simplifies the process of changing sanding

bands.

High Speed Cutters

Available in many shapes, high speed cutters

are used in carving, cutting and slotting in

wood, plastics and soft metals such as

aluminum, copper and brass. These are the

accessories to use for freehand routing or

carving in wood or plastic, and for precision

cutting. Made of high quality steel. 1/8"

shank.

Tungsten Carbide Cutters

These are tough, long-lived cutters for use

on hard ened steel, fired ceramics and other

very hard ma terials. They can be used for

engraving on tools and garden equipment.

1/8" shanks.

Dremel Accessories

Use only Dremel

®

, high-performance accessories. Other accessories are

not designed for this tool and may lead to personal injury or property damage.

Store accessories in a dry and temperate environment to avoid corrosion and deterioration.

The number and variety of accessories for the Rotary Tool are almost limitless. There is a category

suited to almost any job you might have to do and a variety of sizes and shapes within each

category which en ables you to get the perfect accessory for every need.

1600A012FX.qxp_8220 1/30/17 12:41 PM Page 19

20

Engraving Cutters

This group has a wide variety of sizes and

shapes, and are made for intricate work on

ceramics (greenware), wood carvings,

jewelry and scrimshaw. They often are used

in making complicat ed printed circuit boards.

They should not be used on steel and other

very hard materials but are excellent on

wood, plastic and soft metals. 1/8" shank.

Structured Tooth

Tungsten Carbide Cutters

Fast cutting, needle-sharp teeth for greater

material removal with minimum loading. Use

on fiberglass, wood, plastic, epoxy and

rubber. 1/8" shank.

Aluminum Oxide Grinding Stones

(red/brown)

Round, pointed, flat — you name the shape

and there is one available in this category.

These are made of aluminum oxide and

cover virtually every possible kind of grinding

application. Use them for sharpening lawn

mower blades, screwdriver tips, knives,

scissors, chisels and other cutting tools. Use

to remove flash from metal castings,

deburring any metal after cutting, smoothing

welded joints, grinding off rivets and re mov ing

rust. These grinding stones can be resharped

with a dressing stone. In machine shops, high

speed drills and cut ters normally are ground

with aluminum oxide wheels. 1/8" shank.

Silicon Carbide Grinding Stones

(blue/green)

Tougher than aluminum oxide points, these

are made es pecially for use on hard

materials such as glass and ce ramics.

Typical uses might be the removal of stilt

marks and excess glaze on ceramics and

engraving on glass. 1/8" shank.

Diamond Wheel Points

Excellent for fine detail work on wood, jade,

ceramic, glass and other hard material. Bits

are covered with diamond particles. 1/8"

shanks. (Not recommended for drilling)

Wire Brushes

Three different shapes of wire brushes are

available. For best results wire brushes

should be used at speeds not greater than

15,000 RPM. Refer to Operating Speeds

section for proper tool speed setting. The

three shapes come in three different

materials: stainless steel, brass and carbon

wire. The stainless steel perform well on

pewter, aluminum, stainless steel, and other

metals, without leaving "after-rust". Brass

brushes are non sparking, and softer than

steel; making them good for use on soft

metal like gold, cooper and brass. The

carbon wire brushes are good for general

purpose cleaning.

Dremel Accessories (Continued)

1600A012FX.qxp_8220 1/30/17 12:41 PM Page 20

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