DeWalt DWE8100T User manual

DWE8100T
DWE8100S
DWE8110S
Final Page size: A5 (148mm x 210mm)

B
Copyright DeWALT
English (original instructions) 4
한국어 12

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English
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General Power Tool Safety Warnings
WARNING: 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.
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.
1) Work Area Safety
a ) Keep work area clean and well lit. Cluttered or dark
areas inviteaccidents.
b ) 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.
c ) Keep children and bystanders away while operating
a power tool. Distractions can cause you to losecontrol.
2) Electrical Safety
a ) 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.
b ) 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.
Definitions: Safety Guidelines
The definitions below describe the level of severity for each
signal word. Please read the manual and pay attention to
thesesymbols.
DANGER: Indicates an imminently hazardous
situation which, if not avoided, will result in
death or seriousinjury.
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.
NOTICE: Indicates a practice not related to
personal injury which, if not avoided, may
result in propertydamage.
Denotes risk of electricshock.
Denotes risk offire.
Warning: To reduce the risk of injury, read the
instructionmanual.
Congratulations!
You have chosen a DeWALT tool. Years of experience, thorough product development and innovation make DeWALT one of the most
reliable partners for professional power toolusers.
Technical Data
DWE8100T DWE8100S DWE8110S
Voltage V220 220 220
Power output W720 720 720
No-load/rated speed /min-12000 12000 12000
Wheel diameter mm 100 100 125
Spindle diameter M10 M10 M14
Switch style toggle silde silde
Weight kg 1.55* 1.58* 1.79*
* weight DWE8100T & DWE8100S without side handle, DWE8110S include guard and side handle
English (original instructions)
ANGLE GRINDERS
DWE8100T, DWE8100S, DWE8110S

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c ) Disconnect the plug from the power source and/
or remove the battery pack, if detachable, 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.
d ) Store idle power tools out of the reach of children
and do not allow persons unfamiliar with the power
tool or these instructions to operate the power tool.
Power tools are dangerous in the hands of untrainedusers.
e ) Maintain power tools and accessories. 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.
f ) Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges are less
likely to bind and are easier tocontrol.
g ) 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.
5) Service
a ) 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.
ADDITIONAL SPECIFIC SAFETY RULES
Safety Instructions for All Operations
a ) This power tool is intended to function as a
grinder, sander, wire brush 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.
b ) 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.
c ) The rated speed of the accessory must be at least
equal to the maximum speed marked on the power
tool. Accessories running faster than their rated speed can
break and fly apart.
d ) The outside diameter and the thickness of your
accessory must be within the capacity rating of
your power tool. Incorrectly sized accessories can not be
adequately guarded or controlled.
e ) The arbour size of wheels, flanges, backing pads or
any other accessory must properly fit the spindle of
the power tool. Accessories with arbour holes that do
not match the mounting hardware of the power tool will
run out of balance, vibrate excessively and may cause loss
of control.
Batteries
Chargers/Charge Times (Minutes)
Cat #
DC
Weight
*Date code 202011475B or later
**Date code 201536 or later
c ) Do not expose power tools to rain or wet conditions.
Water entering a power tool will increase the risk of
electricshock.
d ) 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.
e ) 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.
f ) If operating a power tool in a damp location is
unavoidable, use a residual current device (RCD)
protected supply. Use of an RCD reduces the risk of
electricshock.
3) Personal Safety
a ) Stay alert, watch what you are doing and use
common sense when operating a power tool. Do not
use a power tool while you are tired or under the
influence of drugs, alcohol or medication. A moment
of inattention while operating power tools may result in
serious personalinjury.
b ) Use personal protective equipment. Always wear eye
protection. Protective equipment such as a dust mask,
non-skid safety shoes, hard hat or hearing protection used
for appropriate conditions will reduce personalinjuries.
c ) 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 energising power tools that have the switch on
invitesaccidents.
d ) 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.
e ) Do not overreach. Keep proper footing and balance
at all times. This enables better control of the power tool
in unexpectedsituations.
f ) Dress properly. Do not wear loose clothing or
jewellery. Keep your hair and clothing away from
moving parts. Loose clothes, jewellery or long hair can be
caught in movingparts.
g ) 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.
4) Power Tool Use and Care
a ) 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.
b ) 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.

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f ) Do not use a damaged accessory. Before each use
inspect the accessory such as abrasive wheel for
chips and cracks, backing pad 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.
g ) 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.
h ) 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.
i ) Hold power tool by insulated gripping surfaces only,
when performing an operation where the cutting
accessory may contact hidden wiring or its own
cord. Cutting accessory contacting a "live" wire may make
exposed metal parts of the power tool "live" and could give
the operator an electrical shock.
j ) 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.
k ) 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.
l ) 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.
m ) 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.
n ) Do not operate the power tool near flammable
materials. Sparks could ignite these materials.
o ) Do not use accessories that require liquid coolants.
Using water or other liquid coolants may result in
electrocution or shock.
FURTHER SAFETY INSTRUCTIONS FOR ALL
OPERATIONS
Causes and Operator Prevention
of Kickback
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 at the point of the
binding.
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 kick out. 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:
a ) Maintain a firm grip on the power tool and position
your body and arm to allow you to resist kickback
forces. Always use auxiliary handle, if provided, for
maximum control over kickback or torque reaction
during start-up. The operator can control torque reaction
or kickback forces, if proper precautions are taken.
b ) Never place your hand near the rotating accessory.
Accessory may kickback over your hand.
c ) Do not position your body in the area where power
tool will move if kickback occurs. Kickback will propel
the tool in direction opposite to the wheel’s movement at
the point of snagging.
d ) 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.
e ) Do not attach a saw chain woodcarving blade or
toothed saw blade. Such blades create frequent kickback
and loss of control.
Safety Warnings Specific for Grinding and
Abrasive Cutting-Off Operations
a ) Use only wheel types that are recommended for your
power tool and the specific guard designed for the
selected wheel. Wheels for which the power tool was not
designed cannot be adequately guarded and are unsafe.
b ) The guard must be securely attached to the power
tool and positioned for maximum safety, so the least
amount of wheel is exposed towards the operator.
The guard helps to protect the operator from broken wheel
fragments and accidental contact with wheel.

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c ) Wheels must be used only for recommended
applications. For example: do not grind with the side
of cut-off wheel. Abrasive cut-off wheels are intended
for peripheral grinding, side forces applied to these wheels
may cause them to shatter.
d ) Always use undamaged wheel flanges that are of
correct size and shape for your selected wheel. Proper
wheel flanges support the wheel thus reducing the
possibility of wheel breakage. Flanges for cut-off wheels
may be different from grinding wheel flanges.
e ) Do not use worn down wheels from larger power
tools. Wheel intended for larger power tool is not suitable
for the higher speed of a smaller tool and may burst.
Additional Safety Warnings Specific for
Abrasive Cutting-Off Operations
a ) Do not “jam” the 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 binding of the wheel in the cut
and the possibility of kickback or wheel breakage.
b ) Do not position your body in line with and behind
the rotating wheel. When the wheel, at the point of
operations, is moving away from your body, the possible
kickback may propel the spinning wheel and the power
tool directly at you.
c ) When wheel is binding 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 binding.
d ) 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.
e ) Support panels or any oversized workpiece to
minimise 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.
f ) 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 Sanding
Operations
a ) Do not use excessively oversized sanding disc
paper. Follow manufacturer’s recommendations,
when selecting sanding paper. Larger sanding paper
extending beyond the sanding pad presents a laceration
hazard and may cause snagging, tearing of the disc
orkickback.
Safety Warnings Specific for Polishing
Operations
a ) Do not allow any loose portion of the polishing
bonnet or its attachment strings to spin freely. Tuck
away or trim any loose attachment strings. Loose and
spinning attachment strings can entangle your fingers or
snag on the workpiece.
Safety Warnings Specific for Wire Brushing
Operations
a ) 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.
b ) If the use of a guard is recommended for wire
brushing, do not allow any interference of the wire
wheel or brush with the guard. Wire wheel or brush
may expand in diameter due to work and centrifugal
forces.
Additional Safety Rules for Grinders
• Threaded mounting of accessories must match the grinder
spindle thread. For accessories mounted by flanges, the arbor
hole of the accessory must fit the locating diameter of the
flange. 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.
• The grinding surface of the centre depressed wheels must
be mounted below the plane of the guard lip. An improperly
mounted wheel that projects through the plane of the guard
lip cannot be adequately protected.
• Do not use Type 11 (flaring cup) wheels on this tool.
Using inappropriate accessories can result in injury.
Residual Risks
In spite of the application of the relevant safety regulations
and the implementation of safety devices, certain residual risks
cannot be avoided. These are:
• Impairment of hearing.
• Risk of personal injury due to flying particles.
• Risk of burns due to accessories becoming hot
duringoperation.
• Risk of personal injury due to prolonged use.
• Risk of dust from hazardous substances.
Markings on Tool
The following pictograms are shown on the tool:
Read instruction manual before use.
Wear eye protection.

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Date Code Position (Fig. 1)
The date code (p), which also includes the year of manufacture,
is printed into thehousing.
Example:
2021 XX XX
Year of Manufacture
Package Contents
The package contains:
1 Angle grinder
1 Guard
1 Side handle (DWE8110S only)
1 Flange set
1 Hex wrench (DWE8110S only)
2 Wrench (DWE8100S & DWE8100T only)
1 Instruction manual
• Check for damage to the tool, parts or accessories which may
have occurred duringtransport.
• Take the time to thoroughly read and understand this manual
prior tooperation.
Description (Fig. 1)
WARNING: Never modify the power tool or any
part of it. Damage or personal injury could result.
a. Spindle lock button
b. Spindle
c. Side handle(DWE8110S only)
d. Backing flange
e. Threaded clamp nut
f. Guard
g. Slider switch(DWE8100S & DWE8110S)
g1. Toggle switch(DWE8100T)
Intended Use
The DWE8100S, DWE8100T, DWE8110S small angle grinders
have been designed for professional grinding, sanding, wire
brushing, polishing and cutting applications.
DO nOT use grinding wheels other than centre depressed
wheels and flap discs.
DO nOT use under wet conditions or in the presence of
flammable liquids orgases.
These heavy-duty angle grinders are professional power tools.
DO nOT let children come into contact with the tool.
Supervision is required when inexperienced operators use
thistool.
• This product is not intended for use by persons (including
children) suffering from diminished physical, sensory or
mental abilities; lack of experience, knowledge or skills
unless they are supervised by a person responsible for their
safety. Children should never be left alone with thisproduct.
Electrical Safety
The electric motor has been designed for one voltage only.
Always check that the power supply corresponds to the voltage
on the rating plate.
This tool is double insulated; therefore no earth wire
is required. Always check that the power supply
corresponds to the voltage on the rating plate.
WARNING: 115 V units have to be operated via a
fail-safe isolating transformer with an earth screen
between the primary and secondary winding.
If the supply cord is damaged, it must be replaced by a specially
prepared cord available through the DeWALT service organisation.
Using an Extension Cable
If an extension cable is required, use an approved 3–core
extension cable suitable for the power input of this tool (see
Technical Data). The minimum conductor size is 1.5mm2; the
maximum length is30m.
When using a cable reel, always unwind the cablecompletely.
ASSEMBLY AND ADJUSTMENTS
WARNING: To reduce the risk of serious
personal injury, turn tool off and disconnect
tool from power source before making
any adjustments or removing/installing
attachments or accessories. Before reconnecting
the tool, depress and release the trigger switch to
ensure that the tool is off.
Attaching Side Handle (Fig.1)
WARNING: Before using the tool, check that the
handle is tightened securely.
Screw the side handle (c) tightly into one of the holes on either
side of the gear case. The side handle should always be used to
maintain control of the tool at all times.
Accessories and Attachments
It is important to choose the correct guards, backing pads and
flanges to use with grinder accessories. Refer to chart at the end of
this section for information on choosing the correct accessories.
nOTE: Edge grinding and cutting can be performed with Type
27 wheels designed and specified for this purpose.
WARNING: Accessories must be rated for at least
the speed recommended on the tool warning
label. Wheels and other accessories running
over rated accessory speed may burst and cause
injury. Threaded accessories must have a M10 hub
(for DWE8100T, DWE8100S) or a M14 hub (for
DWE8110S). Every unthreaded accessory must have
a 22 mm arbor hole. If it does not, it may have been
designed for a circular saw and should not be used.
Use only the accessories shown in chart at the end of
this section. Accessory ratings must be above listed
minimum wheel speed as shown on tool nameplate.

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Mounting Guards (Fig.2)
WARNING: To reduce the risk of serious personal
injury, turn tool off and disconnect tool from power
source before making any adjustments or removing/
installing attachments or accessories. Before
reconnecting the tool, depress and release the trigger switch
to ensure that the tool is off.
CAUTION: Guards must be used with this grinder.
When using the DWE8100S or the DWE8100T or the DWE8110S
grinder for cutting metal or masonry a Type 1 guard MUST be
used. Type 1 guards are available at extra cost from DeWALT
distributors.
nOTE: Please refer to the Grinding and Cutting Accessory
Chart at the end of this section to see other accessories that can
be used with these grinders.
MOUNTING Closed (Type 1) Or Sta ndard (Type 27)
guard
CAUTION: Turn off and unplug the tool before
making anyadjustments or removing or installing
attachments or acces-sories. Before reconnecting
the tool, turn the switch on and off to ensure that
the tool is off.
Hubbed wheels install directly on the M10 (DWE8100T,
DWE8100S), M14 (DWE8110S) spindle. Thread of accessory must
match thread of spindle.
1. Loosen screw, until the guard lug (k) can rotate freely in the
groove (j) on the gear case hub.
2. Rotate guard (f) into desired working position. The guard
body should be positioned between the spindle and the
operator toprovide maximum operator protection.
3. Tighten the screw to secure the guard on the gear case
cover. (Fasten torque no less than 2.5 N-M). You should be
unable to rotate the guard by hand. Do not operate grinder
with a loose guard.
4. To remove the guard, loosen screw and pull up on the
guard.
CAUTION: Failure to properly seat the wheel before
turning the tool on may result in damage to the
tool or the wheel.
Fitting and Removing a Grinding or Cutting
Disc (Fig. 1, 4, 5)
WARNING: Do not use a damaged disc.
1. Place the tool on a table, guard up.
2. Fit the backing flange (d) correctly onto the spindle (b) (fig. 4).
3. Place the disc (n) on the backing flange (d). When fitting a
disc with a raised centre, make sure that the raised centre (l)
is facing the backing flange (d).
4. Screw the threaded clamp nut (e) onto the spindle (b) (fig. 5):
a. The ring on the threaded clamp nut (e) must face
towards the disc when fitting a grinding disc (fig. 5A);
b. The ring on the threaded clamp nut (e) must face away
from the disc when fitting a cutting disc (fig. 5B).
5. Press the spindle lock button (a) and rotate the spindle (b)
until it locks in position.
6. Tighten the threaded clamp nut (e) with the wrench or the
hex key provided
7. Release the spindle lock.
8. To remove the disc, loosen the threaded clamp nut (e) with
the wrench or the hex key provided.
nOTE: Edge grinding and cutting can be performed with Type
27 wheels designed and specified for this purpose; 6 mm thick
wheels are designed for surface grinding while 3 mm wheels are
designed for edge grinding. Cutting can also be performed by
using a Type 1 wheel and a Type 1 guard.
The recommended diameter of grinding or cutting disc for the
tool is 100mm(DWE8100S, DWE8100T) or 125mm(DWE8110S)
Mounting Wire Brushes and Wire Wheels
Wire cup brushes or wire wheels screw directly on the grinder
spindle without the use of flanges. Use only wire brushes or
wheels provided with a M10 (DWE8100S & DWE8100T) or M14
(DWE8110S) threaded hub. A Type 27 guard is required when
using wire brushes and wheels.
CAUTION: Wear work gloves when handling
wire brushes and wheels. They can become
sharp.
CAUTION: Wheel or brush must not touch guard
when mounted or while in use. Undetectable
damage could occur to the accessory, causing wires
to fragment from accessory wheel or cup.
1. Thread the wheel on the spindle by hand.
2. Depress spindle lock button and use a wrench on the hub of
the wire wheel or brush to tighten the wheel.
3. To remove the wheel, reverse the above procedure.
NOTICE: Failure to properly seat the wheel hub before turning the
tool on may result in damage to tool or wheel.
The recommended diameter of Wire Brushes and Wire Wheels
for the tool is 100mm (DWE8100S, DWE8100T) or 125mm
(DWE8110S) .
Fitting and Removing a Backing pad/
Sanding sheet
1. Place the tool on a table or flat surface, with the guard
facing up.
2. Remove the backing flange (d).
3. Place the rubber backing pad correctly onto the spindle (b).
4. Place the sanding sheet on the rubber backing pad.
5. Screw the threaded clamp nut (e) onto the spindle. The ring
on the threaded clamp nut must face towards the rubber
backing pad.