DeWalt XR LI-ION DCG412 User manual

DCG412
DCG412M2

4
24

1
Figure 1
s
o
j
e
f
c
b
a
j
i
j
e
Figure 2
d
p
h
g
1

2
Figure 4
i
k
m
l
i
n
< 3.17 mm (1/8")
> 3.17 mm (1/8")
Figure 3
g
g
h
h
Figure 5
h
g
d
f
k
m
m
l
nd
3
b
a
Figure 6 Figure 7
2

2
Figure 4
i
k
m
l
i
n
< 3.17 mm (1/8")
> 3.17 mm (1/8")
Figure 3
g
g
h
h
Figure 5
h
g
d
f
k
m
m
l
nd
3
b
a
Figure 6 Figure 7
3

49
ENGLISH
An estimation of the level of exposure to
vibration should also take into account
the times when the tool is switched off
or when it is running but not actually
doing the job. This may significantly
reduce the exposure level over the total
working period.
Identify additional safety measures to
protect the operator from the effects of
vibration such as: maintain the tool and
the accessories, keep the hands warm,
organisation of work patterns.
Battery pack DCB180 DCB181 DCB182
Battery type Li-Ion Li-Ion Li-Ion
Voltage VDC 18 18 18
Capacity A
h
3.0 1.5 4.0
Weight kg 0.64 0.35 0.61
Battery pack DCB183 DCB184 DCB185
Battery type Li-Ion Li-Ion Li-Ion
Voltage VDC 18 18 18
Capacity A
h
2.0 5.0 1.3
Weight kg 0.40 0.62 0.35
Charger DCB105
Mains voltage VAC 230 V
Battery type Li-Ion
Approximate min 25 30 40
charging time (1.3 Ah) (1.5 Ah) (2.0 Ah)
of battery packs 55 70 90
(3.0 Ah) (4.0 Ah) (5.0 Ah)
Weight kg 0.49
Charger DCB107
Mains voltage VAC 230 V
Battery type Li-Ion
Approximate min 60 70 90
charging time (1.3 Ah) (1.5 Ah) (2.0 Ah)
of battery packs 140 185 240
(3.0 Ah) (4.0 Ah) (5.0 Ah)
Weight kg 0.29
Fuses
Europe 230 V tools 10 Amperes, mains
U.K. & Ireland 230 V tools 13 Amperes, in plugs
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
DCG412
Voltage VDC 18
Type 2/10
Power input W 405
No-load/rated speed min-1 8000
Wheel diameter mm 125
Spindle diameter M14
Spindle length mm 16
Weight (without battery pack) kg 1.9*
* weight includes side handle and guard
Noise values and vibration values (triax vector sum) according to
EN60745-2-3:
LPA (emission sound pressure level) dB(A) 84
LWA (sound power level) dB(A) 95
KWA (uncertainty for the
given sound level)
dB(A) 3.5
Surface grinding
Vibration emission value a
h,AG
= m/s² 7.1
Uncertainty K = m/s² 2.2
NOTE: Applications such as cutting-off or wire
brushing may have different vibration emissions.
The vibration emission level given in this information
sheet has been measured in accordance with a
standardised test given in EN 60745 and may be
used to compare one tool with another. It may be
used for a preliminary assessment of exposure.
WARNING: The declared vibration
emission level represents the main
applications of the tool. However if the
tool is used for different applications,
with different accessories or poorly
maintained, the vibration emission may
differ. This may significantly increase the
exposure level over the total working
period.
CORDLESS GRINDER
DCG412
50
ENGLISH
WARNING: To reduce the risk of injury,
read the instruction manual.
General Power Tool Safety Warnings
WARNING! 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.
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.
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.
Defi nitions: 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.
EC-Declaration of Conformity
MACHINERY DIRECTIVE
CORDLESS GRINDER
DCG412
DEWALT declares that these products described
under Technical Data are in compliance with:
2006/42/EC, EN 60745-1, EN 60745-2-3.
These products also comply with Directive
2014/30/EU and 2011/65/EU. For more information,
please contact DEWALT at the following address or
refer to the back of the manual.
The undersigned is responsible for compilation of
the technical file and makes this declaration on
behalf of DEWALT.
Horst Grossmann
Vice President Engineering
DEWALT, Richard-Klinger-Straße 11,
D-65510, Idstein, Germany
31.12.2014
4

49
ENGLISH
An estimation of the level of exposure to
vibration should also take into account
the times when the tool is switched off
or when it is running but not actually
doing the job. This may significantly
reduce the exposure level over the total
working period.
Identify additional safety measures to
protect the operator from the effects of
vibration such as: maintain the tool and
the accessories, keep the hands warm,
organisation of work patterns.
Battery pack DCB180 DCB181 DCB182
Battery type Li-Ion Li-Ion Li-Ion
Voltage VDC 18 18 18
Capacity A
h
3.0 1.5 4.0
Weight kg 0.64 0.35 0.61
Battery pack DCB183 DCB184 DCB185
Battery type Li-Ion Li-Ion Li-Ion
Voltage VDC 18 18 18
Capacity A
h
2.0 5.0 1.3
Weight kg 0.40 0.62 0.35
Charger DCB105
Mains voltage VAC 230 V
Battery type Li-Ion
Approximate min 25 30 40
charging time (1.3 Ah) (1.5 Ah) (2.0 Ah)
of battery packs 55 70 90
(3.0 Ah) (4.0 Ah) (5.0 Ah)
Weight kg 0.49
Charger DCB107
Mains voltage VAC 230 V
Battery type Li-Ion
Approximate min 60 70 90
charging time (1.3 Ah) (1.5 Ah) (2.0 Ah)
of battery packs 140 185 240
(3.0 Ah) (4.0 Ah) (5.0 Ah)
Weight kg 0.29
Fuses
Europe 230 V tools 10 Amperes, mains
U.K. & Ireland 230 V tools 13 Amperes, in plugs
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
DCG412
Voltage VDC 18
Type 2/10
Power input W 405
No-load/rated speed min-1 8000
Wheel diameter mm 125
Spindle diameter M14
Spindle length mm 16
Weight (without battery pack) kg 1.9*
* weight includes side handle and guard
Noise values and vibration values (triax vector sum) according to
EN60745-2-3:
LPA (emission sound pressure level) dB(A) 84
LWA (sound power level) dB(A) 95
KWA (uncertainty for the
given sound level)
dB(A) 3.5
Surface grinding
Vibration emission value a
h,AG
= m/s² 7.1
Uncertainty K = m/s² 2.2
NOTE: Applications such as cutting-off or wire
brushing may have different vibration emissions.
The vibration emission level given in this information
sheet has been measured in accordance with a
standardised test given in EN 60745 and may be
used to compare one tool with another. It may be
used for a preliminary assessment of exposure.
WARNING: The declared vibration
emission level represents the main
applications of the tool. However if the
tool is used for different applications,
with different accessories or poorly
maintained, the vibration emission may
differ. This may significantly increase the
exposure level over the total working
period.
CORDLESS GRINDER
DCG412
50
ENGLISH
WARNING: To reduce the risk of injury,
read the instruction manual.
General Power Tool Safety Warnings
WARNING! 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.
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.
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.
Defi nitions: 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.
EC-Declaration of Conformity
MACHINERY DIRECTIVE
CORDLESS GRINDER
DCG412
DEWALT declares that these products described
under Technical Data are in compliance with:
2006/42/EC, EN 60745-1, EN 60745-2-3.
These products also comply with Directive
2014/30/EU and 2011/65/EU. For more information,
please contact DEWALT at the following address or
refer to the back of the manual.
The undersigned is responsible for compilation of
the technical file and makes this declaration on
behalf of DEWALT.
Horst Grossmann
Vice President Engineering
DEWALT, Richard-Klinger-Straße 11,
D-65510, Idstein, Germany
31.12.2014
5

51
ENGLISH
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. 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) BATTERY TOOL USE AND CARE
a) 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.
b) Use power tools only with specifically
designated battery packs. Use of any
other battery packs may create a risk of
injury and fire.
c) 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.
d) 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.
6) 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.
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 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,
clothing and gloves 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.
c) 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.
52
ENGLISH
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.
i) 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.
j) 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.
k) 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.
l) 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.
m) 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.
n) 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.
o) Do not operate the power tool near
flammable materials. Sparks could ignite these
materials.
p) Do not use accessories that require liquid
coolants. Using water or other liquid coolants
may result in electrocution or shock.
q) Do not use Type 11 (flaring cup) wheels on
this tool. Using inappropriate accessories can
result in injury.
r) Always use side handle. Tighten the handle
securely. The side handle should always be
used to maintain control of the tool at all times.
WARNING: We recommend the use of
a residual current device with a residual
current rating of 30mA or less.
ADDITIONAL SPECIFIC SAFETY RULES
Safety Instructions for All Operations
a) This power tool is intended to function as a
grinder, 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) Operations such as sanding and polishing
are not recommended to be performed
with this power tool. Operations for which
the power tool was not designed may create
ahazard and cause personal injury.
c) 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.
d) 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.
e) 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.
f) 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.
g) 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.
h) 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
6

51
ENGLISH
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. 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) BATTERY TOOL USE AND CARE
a) 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.
b) Use power tools only with specifically
designated battery packs. Use of any
other battery packs may create a risk of
injury and fire.
c) 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.
d) 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.
6) 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.
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 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,
clothing and gloves 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.
c) 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.
52
ENGLISH
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.
i) 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.
j) 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.
k) 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.
l) 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.
m) 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.
n) 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.
o) Do not operate the power tool near
flammable materials. Sparks could ignite these
materials.
p) Do not use accessories that require liquid
coolants. Using water or other liquid coolants
may result in electrocution or shock.
q) Do not use Type 11 (flaring cup) wheels on
this tool. Using inappropriate accessories can
result in injury.
r) Always use side handle. Tighten the handle
securely. The side handle should always be
used to maintain control of the tool at all times.
WARNING: We recommend the use of
a residual current device with a residual
current rating of 30mA or less.
ADDITIONAL SPECIFIC SAFETY RULES
Safety Instructions for All Operations
a) This power tool is intended to function as a
grinder, 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) Operations such as sanding and polishing
are not recommended to be performed
with this power tool. Operations for which
the power tool was not designed may create
ahazard and cause personal injury.
c) 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.
d) 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.
e) 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.
f) 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.
g) 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.
h) 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
7

53
ENGLISH
Safety Warnings Specifi c 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 grinding surface of 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.
c) 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
and sparks that could ignite clothing.
d) 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.
e) 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.
f) 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 Specifi c
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
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.
54
ENGLISH
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 ear protection.
Wear eye protection.
DATE CODE POSITION (FIG. 1)
The date code (s), which also includes the year of
manufacture, is printed into the housing.
Example:
2015 XX XX
Year of Manufacture
Important Safety Instructions for All
Battery Chargers
SAVE THESE INSTRUCTIONS: This manual
contains important safety and operating instruc tions
for the DCB105 and DCB107 battery chargers.
• Before using the charger, read all instructions
and cautionary markings on charger, battery
pack and product using the battery pack.
WARNING: Shock hazard. Do not allow
any liquid to get inside charger. Electric
shock may result.
CAUTION: Burn hazard. To reduce
the risk of injury, charge only DEWALT
rechargeable battery packs. Other types
of batteries may overheat and burst
resulting in personal injury and property
damage.
CAUTION: Children should be
supervised to ensure that they do not
play with the appliance.
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 Specifi c 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 Information
• Threaded mounting of accessories must match
the grinder spindle thread. For accessories
mounted by flanges, the arbour 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.
8

53
ENGLISH
Safety Warnings Specifi c 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 grinding surface of 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.
c) 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
and sparks that could ignite clothing.
d) 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.
e) 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.
f) 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 Specifi c
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
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.
54
ENGLISH
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 ear protection.
Wear eye protection.
DATE CODE POSITION (FIG. 1)
The date code (s), which also includes the year of
manufacture, is printed into the housing.
Example:
2015 XX XX
Year of Manufacture
Important Safety Instructions for All
Battery Chargers
SAVE THESE INSTRUCTIONS: This manual
contains important safety and operating instruc tions
for the DCB105 and DCB107 battery chargers.
• Before using the charger, read all instructions
and cautionary markings on charger, battery
pack and product using the battery pack.
WARNING: Shock hazard. Do not allow
any liquid to get inside charger. Electric
shock may result.
CAUTION: Burn hazard. To reduce
the risk of injury, charge only DEWALT
rechargeable battery packs. Other types
of batteries may overheat and burst
resulting in personal injury and property
damage.
CAUTION: Children should be
supervised to ensure that they do not
play with the appliance.
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 Specifi c 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 Information
• Threaded mounting of accessories must match
the grinder spindle thread. For accessories
mounted by flanges, the arbour 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.
9

55
ENGLISH
result in a risk of electric shock, electrocution or
fire.
• In case of damaged power supply cord the
supply cord must be replaced immediately by
the manufacturer, its service agent or similar
qualified person to prevent any hazard.
• Disconnect the charger from the outlet
before attempting any cleaning. This will
reduce the risk of electric shock. Removing
the battery pack will not reduce this risk.
• NEVER attempt to connect 2 chargers together.
• The charger is designed to operate on
standard 230 V household electrical power.
Do not attempt to use it on any other
voltage. This does not apply to the vehicular
charger.
SAVE THESE INSTRUCTIONS
Chargers
The DCB105 and DCB107 chargers accept
10.8V, 14.4 V and 18 V Li-Ion (DCB121, DCB123,
DCB127, DCB140, DCB141, DCB142, DCB143,
DCB144, DCB145, DCB180, DCB181, DCB182,
DCB183, DCB184 and DCB185) battery packs.
This charger requires no adjustment and is designed
to be as easy as possible to operate.
Charging Procedure (fi g. 2)
1. Plug the charger into an appropriate 230 V
outlet before inserting the battery pack.
2. Insert the battery pack (j) into the charger,
making sure the pack is fully seated in the
charger. The red (charging) light will blink
continuously indicating that the charging
process has started.
3. The completion of charge will be indicated by
the red light remaining ON continuously. The
pack is fully charged and may be used at this
time or left in the charger.
NOTE: To ensure maximum performance and life of
Li-Ion batteries, charge the battery pack fully before
first use.
Charging Process
Refer the tables below for the state of charge of the
battery pack.
State of charge–DCB105
charging – – – –
fully charged –––––––––––
hot/cold pack delay –– – –– –
replace battery pack •••••••••••
NOTICE: Under certain conditions, with
the charger plugged in to the power
supply, the exposed charging contacts
inside the charger can be shorted by
foreign material. Foreign materials of
a conductive nature such as, but not
limited to, steel wool, aluminum foil or
any buildup of metallic particles should
be kept away from charger cavities.
Always unplug the charger from the
power supply when there is no battery
pack in the cavity. Unplug charger
before attempting to clean.
WARNING:
• DO NOT attempt to charge the battery pack
with any chargers other than the ones in
this manual. The charger and battery pack are
specifically designed to work together.
• These chargers are not intended for
any uses other than charging DEWALT
rechargeable batteries. Any other uses
may result in risk of fire, electric shock or
electrocution.
• Do not expose charger to rain or snow.
• Pull by plug rather than cord when
disconnecting charger. This will reduce risk
of damage to electric plug and cord.
• Make sure that cord is located so that it will
not be stepped on, tripped over or otherwise
subjected to damage or stress.
• Do not use an extension cord unless it
is absolutely necessary. Use of improper
extension cord could result in risk of fire,
electric shock or electrocution.
• When operating a charger outdoors, always
provide a dry location and use an extension
cord suitable for outdoor use. Use of a cord
suitable for outdoor use reduces the risk of
electric shock.
• Do not block the ventilation slots on the
charger. The ventilation slots are located
on the top and sides of the charger. Place
the charger in a position away from any heat
source.
• Do not operate charger with damaged cord
or plug — have them replaced immediately.
• Do not operate charger if it has received
a sharp blow, been dropped or otherwise
damaged in any way. Take it to an authorised
service centre.
• Do not disassemble the charger; take it to
an authorised service centre when service or
repair is required. Incorrect reassembly may
56
ENGLISH
• Never force the battery pack into charger.
Do not modify the battery pack in any way
to fit into a non-compatible charger as
battery pack may rupture causing serious
personal injury.
• Charge the battery packs only in designated
DEWALT chargers.
• DO NOT splash or immerse in water or other
liquids.
• Do not store or use the tool and battery
pack in locations where the temperature
may reach or exceed 40˚C (105˚F) (such as
outside sheds or metal buildings in summer).
• For best results, make sure the battery pack is
fully charged before use.
WARNING: Never attempt to open
the battery pack for any reason. If
the battery pack case is cracked or
damaged, do not insert it into the
charger. Do not crush, drop or damage
battery pack. Do not use a battery
pack or charger that has received a
sharp blow, been dropped, run over
or damaged in any way (e.g., pierced
with a nail, hit with a hammer, stepped
on). Electric shock or electrocution may
result. Damaged battery packs should
be returned to the service centre for
recycling.
CAUTION: When not in use, place
tool on its side on a stable surface
where it will not cause a tripping or
falling hazard. Some tools with large
battery packs will stand upright on the
battery pack but may be easily knocked
over.
SPECIFIC SAFETY INSTRUCTIONS FOR LITHIUM ION
(Li-Ion)
• Do not incinerate the battery pack even if it
is severely damaged or is completely worn
out. The battery pack can explode in a fire.
Toxic fumes and materials are created when
lithium ion battery packs are burned.
• If battery contents come into contact with
the skin, immediately wash the area with
mild soap and water. If the battery liquid gets
into the eye, rinse water over the open eye for
15 minutes or until irritation ceases. If medical
attention is needed, the battery electrolyte
is composed of a mixture of liquid organic
carbonates and lithium salts.
• Contents of opened battery cells may cause
respiratory irritation. Provide fresh air. If
symptoms persists, seek medical attention.
State of charge–DCB107
charging –– –– –– –– ––
fully charged ––––––––––––––––––––
hot/cold pack delay –– –– –– –––––––
This charger will not charge a faulty battery pack.
The charger will indicate faulty battery by refusing to
light or by displaying problem pack or charger blink
pattern.
NOTE: This could also mean a problem with a
charger.
If the charger indicates a problem, take the charger
and battery pack to be tested at an authorised
service centre.
HOT/COLD PACK DELAY
DCB105
When the charger detects a battery that is too hot
or too cold, it automatically starts a Hot/Cold Pack
Delay, suspending charging until the battery has
reached an appropriate temperature. The charger
then automatically switches to the pack charging
mode. This feature ensures maximum battery life.
DCB107
The red light will continue to blink, but a yellow
indicator light will be illuminated during this
operation. Once the battery has cooled, the yellow
light will turn off and the charger will resume the
charging procedure.
LI-ION BATTERY PACKS ONLY
XR Li-Ion tools are designed with an Electronic
Protection System that will protect the battery
against overloading, overheating or deep discharge.
The tool will automatically turn off if the Electronic
Protection System engages. If this occurs, place the
Li-Ion battery on the charger until it is fully charged.
Important Safety Instructions for All
Battery Packs
When ordering replacement battery packs, be sure
to include the catalog number and voltage.
The battery pack is not fully charged out of the
carton. Before using the battery pack and charger,
read the safety instructions below and then follow
the charging procedures outlined.
READ ALL INSTRUCTIONS
• Do not charge or use the battery pack
in explosive atmospheres, such as in the
presence of flammable liquids, gases or
dust. Inserting or removing the battery pack
from the charger may ignite the dust or fumes.
10

55
ENGLISH
result in a risk of electric shock, electrocution or
fire.
• In case of damaged power supply cord the
supply cord must be replaced immediately by
the manufacturer, its service agent or similar
qualified person to prevent any hazard.
• Disconnect the charger from the outlet
before attempting any cleaning. This will
reduce the risk of electric shock. Removing
the battery pack will not reduce this risk.
• NEVER attempt to connect 2 chargers together.
• The charger is designed to operate on
standard 230 V household electrical power.
Do not attempt to use it on any other
voltage. This does not apply to the vehicular
charger.
SAVE THESE INSTRUCTIONS
Chargers
The DCB105 and DCB107 chargers accept
10.8V, 14.4 V and 18 V Li-Ion (DCB121, DCB123,
DCB127, DCB140, DCB141, DCB142, DCB143,
DCB144, DCB145, DCB180, DCB181, DCB182,
DCB183, DCB184 and DCB185) battery packs.
This charger requires no adjustment and is designed
to be as easy as possible to operate.
Charging Procedure (fi g. 2)
1. Plug the charger into an appropriate 230 V
outlet before inserting the battery pack.
2. Insert the battery pack (j) into the charger,
making sure the pack is fully seated in the
charger. The red (charging) light will blink
continuously indicating that the charging
process has started.
3. The completion of charge will be indicated by
the red light remaining ON continuously. The
pack is fully charged and may be used at this
time or left in the charger.
NOTE: To ensure maximum performance and life of
Li-Ion batteries, charge the battery pack fully before
first use.
Charging Process
Refer the tables below for the state of charge of the
battery pack.
State of charge–DCB105
charging – – – –
fully charged –––––––––––
hot/cold pack delay –– – –– –
replace battery pack •••••••••••
NOTICE: Under certain conditions, with
the charger plugged in to the power
supply, the exposed charging contacts
inside the charger can be shorted by
foreign material. Foreign materials of
a conductive nature such as, but not
limited to, steel wool, aluminum foil or
any buildup of metallic particles should
be kept away from charger cavities.
Always unplug the charger from the
power supply when there is no battery
pack in the cavity. Unplug charger
before attempting to clean.
WARNING:
• DO NOT attempt to charge the battery pack
with any chargers other than the ones in
this manual. The charger and battery pack are
specifically designed to work together.
• These chargers are not intended for
any uses other than charging DEWALT
rechargeable batteries. Any other uses
may result in risk of fire, electric shock or
electrocution.
• Do not expose charger to rain or snow.
• Pull by plug rather than cord when
disconnecting charger. This will reduce risk
of damage to electric plug and cord.
• Make sure that cord is located so that it will
not be stepped on, tripped over or otherwise
subjected to damage or stress.
• Do not use an extension cord unless it
is absolutely necessary. Use of improper
extension cord could result in risk of fire,
electric shock or electrocution.
• When operating a charger outdoors, always
provide a dry location and use an extension
cord suitable for outdoor use. Use of a cord
suitable for outdoor use reduces the risk of
electric shock.
• Do not block the ventilation slots on the
charger. The ventilation slots are located
on the top and sides of the charger. Place
the charger in a position away from any heat
source.
• Do not operate charger with damaged cord
or plug — have them replaced immediately.
• Do not operate charger if it has received
a sharp blow, been dropped or otherwise
damaged in any way. Take it to an authorised
service centre.
• Do not disassemble the charger; take it to
an authorised service centre when service or
repair is required. Incorrect reassembly may
56
ENGLISH
• Never force the battery pack into charger.
Do not modify the battery pack in any way
to fit into a non-compatible charger as
battery pack may rupture causing serious
personal injury.
• Charge the battery packs only in designated
DEWALT chargers.
• DO NOT splash or immerse in water or other
liquids.
• Do not store or use the tool and battery
pack in locations where the temperature
may reach or exceed 40˚C (105˚F) (such as
outside sheds or metal buildings in summer).
• For best results, make sure the battery pack is
fully charged before use.
WARNING: Never attempt to open
the battery pack for any reason. If
the battery pack case is cracked or
damaged, do not insert it into the
charger. Do not crush, drop or damage
battery pack. Do not use a battery
pack or charger that has received a
sharp blow, been dropped, run over
or damaged in any way (e.g., pierced
with a nail, hit with a hammer, stepped
on). Electric shock or electrocution may
result. Damaged battery packs should
be returned to the service centre for
recycling.
CAUTION: When not in use, place
tool on its side on a stable surface
where it will not cause a tripping or
falling hazard. Some tools with large
battery packs will stand upright on the
battery pack but may be easily knocked
over.
SPECIFIC SAFETY INSTRUCTIONS FOR LITHIUM ION
(Li-Ion)
• Do not incinerate the battery pack even if it
is severely damaged or is completely worn
out. The battery pack can explode in a fire.
Toxic fumes and materials are created when
lithium ion battery packs are burned.
• If battery contents come into contact with
the skin, immediately wash the area with
mild soap and water. If the battery liquid gets
into the eye, rinse water over the open eye for
15 minutes or until irritation ceases. If medical
attention is needed, the battery electrolyte
is composed of a mixture of liquid organic
carbonates and lithium salts.
• Contents of opened battery cells may cause
respiratory irritation. Provide fresh air. If
symptoms persists, seek medical attention.
State of charge–DCB107
charging –– –– –– –– ––
fully charged ––––––––––––––––––––
hot/cold pack delay –– –– –– –––––––
This charger will not charge a faulty battery pack.
The charger will indicate faulty battery by refusing to
light or by displaying problem pack or charger blink
pattern.
NOTE: This could also mean a problem with a
charger.
If the charger indicates a problem, take the charger
and battery pack to be tested at an authorised
service centre.
HOT/COLD PACK DELAY
DCB105
When the charger detects a battery that is too hot
or too cold, it automatically starts a Hot/Cold Pack
Delay, suspending charging until the battery has
reached an appropriate temperature. The charger
then automatically switches to the pack charging
mode. This feature ensures maximum battery life.
DCB107
The red light will continue to blink, but a yellow
indicator light will be illuminated during this
operation. Once the battery has cooled, the yellow
light will turn off and the charger will resume the
charging procedure.
LI-ION BATTERY PACKS ONLY
XR Li-Ion tools are designed with an Electronic
Protection System that will protect the battery
against overloading, overheating or deep discharge.
The tool will automatically turn off if the Electronic
Protection System engages. If this occurs, place the
Li-Ion battery on the charger until it is fully charged.
Important Safety Instructions for All
Battery Packs
When ordering replacement battery packs, be sure
to include the catalog number and voltage.
The battery pack is not fully charged out of the
carton. Before using the battery pack and charger,
read the safety instructions below and then follow
the charging procedures outlined.
READ ALL INSTRUCTIONS
• Do not charge or use the battery pack
in explosive atmospheres, such as in the
presence of flammable liquids, gases or
dust. Inserting or removing the battery pack
from the charger may ignite the dust or fumes.
11

57
ENGLISH
Storage Recommendations
1. The best storage place is one that is cool and
dry away from direct sunlight and excess heat
or cold. For optimum battery performance and
life, store battery packs at room temperature
when not in use.
2. For long storage, it is recommended to store a
fully charged battery pack in a cool, dry place
out of the charger for optimal results.
NOTE: Battery packs should not be stored
completely depleted of charge. The battery pack will
need to be recharged before use.
Labels on Charger and Battery Pack
In addition to the pictographs used in this manual,
the labels on the charger and the battery pack show
the following pictographs:
Read instruction manual before use.
See Technical Data for charging time.
Battery charging.
Battery charged.
Battery defective.
Hot/cold pack delay.
Do not probe with conductive objects.
Do not charge damaged battery packs.
Do not expose to water.
Have defective cords replaced
immediately.
Charge only between 4 ˚C and 40 ˚C.
Only for indoor use.
Discard the battery pack with due care
for the environment.
WARNING: Burn hazard. Battery liquid
may be flammable if exposed to spark
or flame.
Transportation
DEWALT batteries comply with all applicable
shipping regulations as prescribed by industry and
legal standards which include UN Recommendations
on the Transport of Dangerous Goods; International
Air Transport Association (IATA) Dangerous Goods
Regulations, International Maritime Dangerous
Goods (IMDG) Regulations, and the European
Agreement Concerning The International Carriage
of Dangerous Goods by Road (ADR). Lithium-ion
cells and batteries have been tested to section 38.3
of the UN Recommendations on the Transport of
Dangerous Goods Manual of Tests and Criteria.
In most instances, shipping a DEWALT battery pack
will be excepted from being classified as a fully
regulated Class 9 Hazardous material. In general,
the two instances that require shipping Class 9 are:
1. Air shipping more than two DEWALT lithium-ion
battery packs when the package contains only
battery packs (no tools), and
2. Any shipment containing a lithium-ion battery
with an energy rating greater than 100 watt
hours (Wh). All lithium-ion batteries have the
watt hour rating marked on the pack.
Regardless of whether a shipment is considered
excepted or fully regulated, it is the shipper's
responsibility to consult the latest regulations for
packaging, labeling/marking and documentation
requirements.
Transporting batteries can possibly cause fire if the
battery terminals inadvertently come in contact with
conductive materials. When transporting batteries,
make sure that the battery terminals are protected
and well insulated from materials that could contact
them and cause a short circuit.
The information provided in this section of the
manual is provided in good faith and believed to be
accurate at the time the document was created.
However, no warranty, expressed or implied, is
given. It is the buyer’s responsibility to ensure that its
activities comply with the applicable regulations.
Battery Pack
BATTERY TYPE
The DCG412 operates on a 18 V battery pack,
DCB180, DCB181, DCB182, DCB183, DCB184 or
DCB185 battery packs may be used.
Due to the high power draw of this product, it is
recommended that high capacity battery packs are
used where available. Refer to Technical Data for
more information.
58
ENGLISH
o. Battery release button
p. Fuel gauge button
INTENDED USE
The DCG412 cordless angle grinder has been
designed for professional cutting, light-duty material
removal and wire-brush 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.
This heavy-duty angle grinder is a professional
power tools.
DO NOT let children come into contact with the
tool. Supervision is required when inexperienced
operators use this tool.
• Young children and the infirm. This appliance
is not intended for use by young children or
infirm persons without supervision.
• 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 battery pack
voltage corresponds to the voltage on the rating
plate. Also make sure that the voltage of your
charger corresponds to that of your mains.
Your DEWALT charger is double insulated
in accordance with EN 60335; therefore
no earth wire is required.
If the supply cord is damaged, it must be replaced
by a specially prepared cord available through the
DEWALT service organisation.
Mains Plug Replacement
(U.K. & Ireland Only)
If a new mains plug needs to be fitted:
• Safely dispose of the old plug.
• Connect the brown lead to the live terminal in
the plug.
• Connect the blue lead to the neutral terminal.
WARNING: No connection is to be
made to the earth terminal.
Charge DEWALT battery packs only with
designated DEWALT chargers. Charging
battery packs other than the designated
DEWALT batteries with a DEWALT
charger may make them burst or lead to
other dangerous situations.
Do not incinerate the battery pack.
Package Contents
The package contains:
1 Angle grinder
1 125 mm Guard (Type 27)
1 Side handle
1 Flange set
1 Two-pin spanner
1 Charger
2 Li-Ion battery packs (L2, M2, P2 models)
1 Instruction manual
NOTE: Battery packs, chargers and kitboxes are
not included with N-models.
• 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 (fi g. 1–3)
WARNING: Never modify the power
tool or any part of it. Damage or
personal injury could result.
a. Trigger switch
b. Lock-off button
c. Spindle lock button
d. Spindle
e. Side handle
f. Abrasive wheel
g. Backing flange
h. Threaded clamp nut
i. Guard
j. Battery pack
k. Guard catch
l. Lugs
m. Gear case slots
n. Adjusting screw
12

57
ENGLISH
Storage Recommendations
1. The best storage place is one that is cool and
dry away from direct sunlight and excess heat
or cold. For optimum battery performance and
life, store battery packs at room temperature
when not in use.
2. For long storage, it is recommended to store a
fully charged battery pack in a cool, dry place
out of the charger for optimal results.
NOTE: Battery packs should not be stored
completely depleted of charge. The battery pack will
need to be recharged before use.
Labels on Charger and Battery Pack
In addition to the pictographs used in this manual,
the labels on the charger and the battery pack show
the following pictographs:
Read instruction manual before use.
See Technical Data for charging time.
Battery charging.
Battery charged.
Battery defective.
Hot/cold pack delay.
Do not probe with conductive objects.
Do not charge damaged battery packs.
Do not expose to water.
Have defective cords replaced
immediately.
Charge only between 4 ˚C and 40 ˚C.
Only for indoor use.
Discard the battery pack with due care
for the environment.
WARNING: Burn hazard. Battery liquid
may be flammable if exposed to spark
or flame.
Transportation
DEWALT batteries comply with all applicable
shipping regulations as prescribed by industry and
legal standards which include UN Recommendations
on the Transport of Dangerous Goods; International
Air Transport Association (IATA) Dangerous Goods
Regulations, International Maritime Dangerous
Goods (IMDG) Regulations, and the European
Agreement Concerning The International Carriage
of Dangerous Goods by Road (ADR). Lithium-ion
cells and batteries have been tested to section 38.3
of the UN Recommendations on the Transport of
Dangerous Goods Manual of Tests and Criteria.
In most instances, shipping a DEWALT battery pack
will be excepted from being classified as a fully
regulated Class 9 Hazardous material. In general,
the two instances that require shipping Class 9 are:
1. Air shipping more than two DEWALT lithium-ion
battery packs when the package contains only
battery packs (no tools), and
2. Any shipment containing a lithium-ion battery
with an energy rating greater than 100 watt
hours (Wh). All lithium-ion batteries have the
watt hour rating marked on the pack.
Regardless of whether a shipment is considered
excepted or fully regulated, it is the shipper's
responsibility to consult the latest regulations for
packaging, labeling/marking and documentation
requirements.
Transporting batteries can possibly cause fire if the
battery terminals inadvertently come in contact with
conductive materials. When transporting batteries,
make sure that the battery terminals are protected
and well insulated from materials that could contact
them and cause a short circuit.
The information provided in this section of the
manual is provided in good faith and believed to be
accurate at the time the document was created.
However, no warranty, expressed or implied, is
given. It is the buyer’s responsibility to ensure that its
activities comply with the applicable regulations.
Battery Pack
BATTERY TYPE
The DCG412 operates on a 18 V battery pack,
DCB180, DCB181, DCB182, DCB183, DCB184 or
DCB185 battery packs may be used.
Due to the high power draw of this product, it is
recommended that high capacity battery packs are
used where available. Refer to Technical Data for
more information.
58
ENGLISH
o. Battery release button
p. Fuel gauge button
INTENDED USE
The DCG412 cordless angle grinder has been
designed for professional cutting, light-duty material
removal and wire-brush 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.
This heavy-duty angle grinder is a professional
power tools.
DO NOT let children come into contact with the
tool. Supervision is required when inexperienced
operators use this tool.
• Young children and the infirm. This appliance
is not intended for use by young children or
infirm persons without supervision.
• 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 battery pack
voltage corresponds to the voltage on the rating
plate. Also make sure that the voltage of your
charger corresponds to that of your mains.
Your DEWALT charger is double insulated
in accordance with EN 60335; therefore
no earth wire is required.
If the supply cord is damaged, it must be replaced
by a specially prepared cord available through the
DEWALT service organisation.
Mains Plug Replacement
(U.K. & Ireland Only)
If a new mains plug needs to be fitted:
• Safely dispose of the old plug.
• Connect the brown lead to the live terminal in
the plug.
• Connect the blue lead to the neutral terminal.
WARNING: No connection is to be
made to the earth terminal.
Charge DEWALT battery packs only with
designated DEWALT chargers. Charging
battery packs other than the designated
DEWALT batteries with a DEWALT
charger may make them burst or lead to
other dangerous situations.
Do not incinerate the battery pack.
Package Contents
The package contains:
1 Angle grinder
1 125 mm Guard (Type 27)
1 Side handle
1 Flange set
1 Two-pin spanner
1 Charger
2 Li-Ion battery packs (L2, M2, P2 models)
1 Instruction manual
NOTE: Battery packs, chargers and kitboxes are
not included with N-models.
• 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 (fi g. 1–3)
WARNING: Never modify the power
tool or any part of it. Damage or
personal injury could result.
a. Trigger switch
b. Lock-off button
c. Spindle lock button
d. Spindle
e. Side handle
f. Abrasive wheel
g. Backing flange
h. Threaded clamp nut
i. Guard
j. Battery pack
k. Guard catch
l. Lugs
m. Gear case slots
n. Adjusting screw
13

59
ENGLISH
NOTE: The fuel gauge is only an indication of the
charge left on the battery pack. It does not indicate
tool functionality and is subject to variation based
on product components, temperature and end-user
application.
Attaching Side Handle (fi g. 1)
WARNING: Before using the tool,
check that the handle is tightened
securely.
WARNING: The side handle should
always be used to maintain control of
the tool at all times.
Screw the side handle (e) tightly into one of the holes
on either side of the gear case.
To improve user comfort, the gear case will rotate
90° for cutting operations.
Rotating the Gear Case (fi g. 1)
1. Remove the four corner screws attaching the
gear case to motor housing.
2. Without separating the gear case from motor
housing, rotate the gear case head to desired
position.
NOTE: If the gear case and motor housing become
separated by more than 1/8" (3.17 mm), the
tool must be serviced and re-assembled by an
authorised DEWALT service centre. Failure to have
the tool serviced may cause brush, motor and
bearing failure.
3. Reinstall screws to attach the gear case to the
motor housing. Tighten screws to 20 in.-lbs.
torque. Overtightening could cause screws to
strip.
Mounting and Removing the Guard
(fi g. 3)
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 DCG412 grinder for cutting
metal or masonry, a Type 1 guard MUST be used.
Type 1 guards are available at extra cost from
DEWALT distributors.
Follow the fitting instructions supplied with good
quality plugs. Recommended fuse: 3 A.
Using an Extension Cable
An extension cord should not be used unless
absolutely necessary. Use an approved extension
cable suitable for the power input of your charger
(see Technical Data). The minimum conductor size
is 1 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.
WARNING: Use only DEWALT battery
packs and chargers.
Inserting and Removing the
Battery Pack from the Tool (fi g. 2)
NOTE: For best results, make sure your battery
pack is fully charged.
TO INSTALL THE BATTERY PACK INTO THE TOOL HANDLE
1. Align the battery pack (j) with the rails inside the
tool’s handle (fig. 2).
2. Slide it into the handle until the battery pack is
firmly seated in the tool and ensure that it does
not disengage.
TO REMOVE THE BATTERY PACK FROM THE TOOL
1. Press the battery release button (o) and firmly
pull the battery pack out of the tool handle.
2. Insert battery pack into the charger as
described in the charger section of this manual.
FUEL GAUGE BATTERY PACKS (FIG. 2)
Some DEWALT battery packs include a fuel gauge
which consists of three green LED lights that
indicate the level of charge remaining in the battery
pack.
To actuate the fuel gauge, press and hold the fuel
gauge button (p). A combination of the three green
LED lights will illuminate designating the level of
charge left. When the level of charge in the battery
is below the usable limit, the fuel gauge will not
illuminate and the battery will need to be recharged.
60
ENGLISH
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.
1. Place the tool on a table, guard up.
2. Install the unthreaded backing flange (g) on
spindle (d) with the raised centre against the
wheel.
3. Place wheel (f) against the backing flange,
centreing the wheel on the raised centre of the
backing flange.
4. While depressing the spindle lock button (c),
thread the clamp nut (h) on spindle. If the
wheel you are installing is more than 1/8"
(3.17mm) thick, place the threaded clamp nut
on the spindle so that the raised centre fits into
the centre of the wheel. If the wheel you are
installing is 1/8" (3.17 mm) thick or less, place
the threaded clamp nut on the spindle so that
the raised centre is not against the wheel.
5. While depressing the spindle lock button (c),
tighten the clamp nut with a wrench.
6. To remove the wheel, depress the spindle lock
button and loosen the threaded clamp nut with
a wrench.
NOTE: If the wheel spins after the clamp nut is
tightened, check the orientation of the threaded
clamp nut. If a thin wheel is installed with the
raised centre on the clamp nut against the wheel,
it will spin because the height of the raised centre
prevents the clamp nut from holding the wheel.
Mounting Wire Brushes and Wire
Wheels (fi g. 1)
Wire cup brushes or wire wheels install directly on
the threaded spindle without the use of flanges.
Use only wire brushes or wheels provided with a
M14 threaded hub. These accessories are available
at extra cost from your local dealer or authorised
service centre.
NOTE: The Type 27 guard is required when using
wire brushes and wheels.
CAUTION: To reduce the risk of
personal injury, wear work gloves
when handling wire brushes and
wheels. They can become sharp.
CAUTION: To reduce the risk
of damage to the tool, 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.
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.
1. Place the tool on a table, spindle (d) up.
2. Open the guard latch (k), and align the lugs (l)
on the guard with the slots on the gear
case (m).
3. Push the guard down until the guard lugs
engage and rotate freely in the groove on the
gear case hub.
4. With the guard latch open, rotate the guard (i)
into the desired working position.
5. Close the guard latch to secure the guard on
the gear case.
CAUTION: If the guard cannot be
tightened by the adjusting screw (n), do
not use the tool. To reduce the risk of
personal injury, take the tool and guard
to a service centre to repair or replace
the guard.
NOTICE: Do not tighten the adjusting
screw (n) with the clamp lever in the
open position. Undetectable damage
to the guard or the mounting hub may
result.
NOTE: Edge grinding and cutting can be performed
with Type 27 wheels designed and specified for this
purpose; 6.35 mm (1/4") thick wheels are designed
for surface grinding while 3.17 mm (1/8") wheels are
designed for edge grinding.
Mounting Depressed Centre Grinding
Wheels
NOTE: The Type 27 guard supplied with grinder
MUST be used.
MOUNTING AND REMOVING HUBBED WHEELS (FIG. 1, 4)
Hubbed wheels install directly on the M14 threaded
spindle.
1. Thread the wheel on the spindle (d) by hand.
2. Depress the spindle lock button (c) and use a
wrench to tighten the hub of the wheel.
3. Reverse the above procedure to remove the
wheel.
NOTICE: Failure to properly seat the
wheel before turning the tool on may
result in damage to the tool or the
wheel.
MOUNTING NON-HUBBED WHEELS (FIG. 1, 4)
NOTE: The Type 27 guard supplied with grinder
MUST be used.
14

59
ENGLISH
NOTE: The fuel gauge is only an indication of the
charge left on the battery pack. It does not indicate
tool functionality and is subject to variation based
on product components, temperature and end-user
application.
Attaching Side Handle (fi g. 1)
WARNING: Before using the tool,
check that the handle is tightened
securely.
WARNING: The side handle should
always be used to maintain control of
the tool at all times.
Screw the side handle (e) tightly into one of the holes
on either side of the gear case.
To improve user comfort, the gear case will rotate
90° for cutting operations.
Rotating the Gear Case (fi g. 1)
1. Remove the four corner screws attaching the
gear case to motor housing.
2. Without separating the gear case from motor
housing, rotate the gear case head to desired
position.
NOTE: If the gear case and motor housing become
separated by more than 1/8" (3.17 mm), the
tool must be serviced and re-assembled by an
authorised DEWALT service centre. Failure to have
the tool serviced may cause brush, motor and
bearing failure.
3. Reinstall screws to attach the gear case to the
motor housing. Tighten screws to 20 in.-lbs.
torque. Overtightening could cause screws to
strip.
Mounting and Removing the Guard
(fi g. 3)
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 DCG412 grinder for cutting
metal or masonry, a Type 1 guard MUST be used.
Type 1 guards are available at extra cost from
DEWALT distributors.
Follow the fitting instructions supplied with good
quality plugs. Recommended fuse: 3 A.
Using an Extension Cable
An extension cord should not be used unless
absolutely necessary. Use an approved extension
cable suitable for the power input of your charger
(see Technical Data). The minimum conductor size
is 1 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.
WARNING: Use only DEWALT battery
packs and chargers.
Inserting and Removing the
Battery Pack from the Tool (fi g. 2)
NOTE: For best results, make sure your battery
pack is fully charged.
TO INSTALL THE BATTERY PACK INTO THE TOOL HANDLE
1. Align the battery pack (j) with the rails inside the
tool’s handle (fig. 2).
2. Slide it into the handle until the battery pack is
firmly seated in the tool and ensure that it does
not disengage.
TO REMOVE THE BATTERY PACK FROM THE TOOL
1. Press the battery release button (o) and firmly
pull the battery pack out of the tool handle.
2. Insert battery pack into the charger as
described in the charger section of this manual.
FUEL GAUGE BATTERY PACKS (FIG. 2)
Some DEWALT battery packs include a fuel gauge
which consists of three green LED lights that
indicate the level of charge remaining in the battery
pack.
To actuate the fuel gauge, press and hold the fuel
gauge button (p). A combination of the three green
LED lights will illuminate designating the level of
charge left. When the level of charge in the battery
is below the usable limit, the fuel gauge will not
illuminate and the battery will need to be recharged.
60
ENGLISH
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.
1. Place the tool on a table, guard up.
2. Install the unthreaded backing flange (g) on
spindle (d) with the raised centre against the
wheel.
3. Place wheel (f) against the backing flange,
centreing the wheel on the raised centre of the
backing flange.
4. While depressing the spindle lock button (c),
thread the clamp nut (h) on spindle. If the
wheel you are installing is more than 1/8"
(3.17mm) thick, place the threaded clamp nut
on the spindle so that the raised centre fits into
the centre of the wheel. If the wheel you are
installing is 1/8" (3.17 mm) thick or less, place
the threaded clamp nut on the spindle so that
the raised centre is not against the wheel.
5. While depressing the spindle lock button (c),
tighten the clamp nut with a wrench.
6. To remove the wheel, depress the spindle lock
button and loosen the threaded clamp nut with
a wrench.
NOTE: If the wheel spins after the clamp nut is
tightened, check the orientation of the threaded
clamp nut. If a thin wheel is installed with the
raised centre on the clamp nut against the wheel,
it will spin because the height of the raised centre
prevents the clamp nut from holding the wheel.
Mounting Wire Brushes and Wire
Wheels (fi g. 1)
Wire cup brushes or wire wheels install directly on
the threaded spindle without the use of flanges.
Use only wire brushes or wheels provided with a
M14 threaded hub. These accessories are available
at extra cost from your local dealer or authorised
service centre.
NOTE: The Type 27 guard is required when using
wire brushes and wheels.
CAUTION: To reduce the risk of
personal injury, wear work gloves
when handling wire brushes and
wheels. They can become sharp.
CAUTION: To reduce the risk
of damage to the tool, 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.
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.
1. Place the tool on a table, spindle (d) up.
2. Open the guard latch (k), and align the lugs (l)
on the guard with the slots on the gear
case (m).
3. Push the guard down until the guard lugs
engage and rotate freely in the groove on the
gear case hub.
4. With the guard latch open, rotate the guard (i)
into the desired working position.
5. Close the guard latch to secure the guard on
the gear case.
CAUTION: If the guard cannot be
tightened by the adjusting screw (n), do
not use the tool. To reduce the risk of
personal injury, take the tool and guard
to a service centre to repair or replace
the guard.
NOTICE: Do not tighten the adjusting
screw (n) with the clamp lever in the
open position. Undetectable damage
to the guard or the mounting hub may
result.
NOTE: Edge grinding and cutting can be performed
with Type 27 wheels designed and specified for this
purpose; 6.35 mm (1/4") thick wheels are designed
for surface grinding while 3.17 mm (1/8") wheels are
designed for edge grinding.
Mounting Depressed Centre Grinding
Wheels
NOTE: The Type 27 guard supplied with grinder
MUST be used.
MOUNTING AND REMOVING HUBBED WHEELS (FIG. 1, 4)
Hubbed wheels install directly on the M14 threaded
spindle.
1. Thread the wheel on the spindle (d) by hand.
2. Depress the spindle lock button (c) and use a
wrench to tighten the hub of the wheel.
3. Reverse the above procedure to remove the
wheel.
NOTICE: Failure to properly seat the
wheel before turning the tool on may
result in damage to the tool or the
wheel.
MOUNTING NON-HUBBED WHEELS (FIG. 1, 4)
NOTE: The Type 27 guard supplied with grinder
MUST be used.
15

61
ENGLISH
4. Close the guard latch to secure the guard on
the gear case cover. You should be unable to
rotate the guard by hand when the latch is in
closed position. Do not operate grinder with a
loose guard or clamp lever in open position.
5. To remove the guard, open the guard latch,
rotate the guard so that the arrows are aligned
and pull up on the guard.
NOTE: The guard is pre-adjusted to the dia met er of
the gear case hub at the factory. If, after a period of
time, the guard becomes loose, tighten the adjusting
screw (n) with the clamp lever in the closed position
with guard installed on the tool.
NOTICE: To reduce the risk of
damage to the tool, do not tighten
adjusting screw (n) with clamp lever in
open position. Undetectable damage to
guard or mounting hub may result.
MOUNTING CUTTING WHEELS (FIG. 1, 4)
CAUTION: Matching diameter backing
flange and clamp nut (included with
tool) must be used for cutting wheels.
1. Place the unthreaded backing flange on
spindle with the raised centre facing up. The
raised centre on the backing flange will be
against the wheel when the wheel is installed.
2. Place the wheel on the backing flange,
centreing the wheel on the raised centre.
3. Install the threaded clamp nut with the raised
centre away from the wheel.
4. Depress the spindle lock button (c) and tighten
clamp nut with a wrench.
5. To remove the wheel, depress the spindle lock
button and loosen the threaded clamp nut with
a wrench.
Prior to Operation
• Install the guard and appropriate disc or wheel.
Do not use excessively worn discs or wheels.
• Be sure the inner and outer flange are mounted
correctly. Follow the instructions given in the
Grinding and Cutting Accessory Chart.
• Make sure the disc or wheel rotates in the
direction of the arrows on the accessory and
the tool.
• Do not use a damaged accessory. Before each
use inspect the accessory such as abrasive
wheels 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
MOUNTING WIRE CUP BRUSHES AND WIRE WHEELS
1. Place the tool on a table, guard up.
2. Thread the wheel on the spindle by hand.
3. Depress spindle lock button (c) and use a
wrench on the hub of the wire wheel or brush to
tighten the wheel.
4. To remove the wheel, reverse the above
procedure.
NOTICE: To reduce the risk of damage
to the tool, properly seat the wheel hub
before turning the tool on.
Mounting Cutting (Type 1) Wheels
Cutting wheels include diamond wheels and
abrasive discs. Abrasive cutting wheels for metal
and concrete use are available. Diamond blades
for concrete cutting can also be used. These
accessories are available at extra cost from your
local dealer or authorised service centre.
WARNING: A closed, two-sided cutting
wheel guard is re quired when using
cutting wheels. These accessories are
available at extra cost from your local
dealer or authorised service centre.
Fail ure to use proper flange and guard
can re sult in injury resulting from wheel
breakage and wheel contact. 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.
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.
MOUNTING CLOSED (TYPE 1) GUARD (FIG. 5)
1. Open the guard latch (k), and align the lugs (l)
on the guard with the slots on the gear case
(m). This will align the lugs with slots on the gear
case cover. Position the guard facing backward.
2. Push the guard down until the guard lug
engages and rotates freely in the groove on the
gear case hub.
3. Rotate guard (i) into desired working position.
The guard body should be positioned between
the spindle and the operator to provide
maximum operator protection.
62
ENGLISH
• Make sure the disc or wheel rotates
in the direction of the arrows on the
accessory and the tool.
• Avoid overloading. Should the tool
become hot, let it run a few minutes
under no load condition to cool the
accessory. Do not touch accessories
before they have cooled. The discs
become very hot during use.
• Never work with the grinding cup
without a suitable protection guard in
place.
• Do not use the power tool with a cut-
off stand.
• Never use blotters together with
bonded abrasive products.
• Be aware, the wheel continues to
rotate after the tools is switched off.
Proper Hand Position (fi g. 1, 6)
WARNING: To reduce the risk of
serious personal injury, ALWAYS use
proper hand position as shown.
WARNING: To reduce the risk of
serious personal injury, ALWAYS hold
securely in anticipation of a sudden
reaction.
Proper hand position requires one hand on the side
handle (e), with the other hand on the body of the
tool, as shown in figure 6.
Switch
WARNING: Before using the tool,
check that the handle is tightened
securely.
LOCK-OFF BUTTON AND TRIGGER SWITCH (FIG. 7)
Your cut-off tool is equipped with a lock-off
button(b).
To lock the trigger switch (a), press the lock-off
button as shown in figure 7. When the lock-off
button is depressed to the lock icon, the unit is
locked.
Always lock the trigger switch when carrying or
storing the tool to eliminate unintentional starting.
To unlock the trigger switch, press the lock-off
button (b). When the lock-off button is depressed
to the unlock icon, the unit is unlocked. The lock-off
button is colored red to indicate when the switch is
in its unlocked position.
Pull the trigger switch (a) to turn the motor ON.
Releasing the trigger switch turns the motor OFF.
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.
OPERATION
Instructions for Use
WARNING: Always observe the safety
instructions and applicable regulations.
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.
WARNING:
• Ensure all materials to be ground or
cut are secured in place.
• Secure and support the workpiece.
Use clamps or a vice to hold and
support the workpiece to a stable
platform. It is important to clamp and
support the workpiece securely to
prevent movement of the workpiece
and loss of control. Movement of
the workpiece or loss of control may
create a hazard and cause personal
injury.
• 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.
• Apply only a gentle pressure to the
tool. Do not exert side pressure on the
disc.
• Always wear regular working gloves
while operating this tool.
• The gear case becomes very hot
during use.
• Always install the guard and
appropriate disc or wheel. Do not use
excessively worn disc or wheel.
• Be sure the inner and outer flange are
mounted correctly.
16

61
ENGLISH
4. Close the guard latch to secure the guard on
the gear case cover. You should be unable to
rotate the guard by hand when the latch is in
closed position. Do not operate grinder with a
loose guard or clamp lever in open position.
5. To remove the guard, open the guard latch,
rotate the guard so that the arrows are aligned
and pull up on the guard.
NOTE: The guard is pre-adjusted to the dia met er of
the gear case hub at the factory. If, after a period of
time, the guard becomes loose, tighten the adjusting
screw (n) with the clamp lever in the closed position
with guard installed on the tool.
NOTICE: To reduce the risk of
damage to the tool, do not tighten
adjusting screw (n) with clamp lever in
open position. Undetectable damage to
guard or mounting hub may result.
MOUNTING CUTTING WHEELS (FIG. 1, 4)
CAUTION: Matching diameter backing
flange and clamp nut (included with
tool) must be used for cutting wheels.
1. Place the unthreaded backing flange on
spindle with the raised centre facing up. The
raised centre on the backing flange will be
against the wheel when the wheel is installed.
2. Place the wheel on the backing flange,
centreing the wheel on the raised centre.
3. Install the threaded clamp nut with the raised
centre away from the wheel.
4. Depress the spindle lock button (c) and tighten
clamp nut with a wrench.
5. To remove the wheel, depress the spindle lock
button and loosen the threaded clamp nut with
a wrench.
Prior to Operation
• Install the guard and appropriate disc or wheel.
Do not use excessively worn discs or wheels.
• Be sure the inner and outer flange are mounted
correctly. Follow the instructions given in the
Grinding and Cutting Accessory Chart.
• Make sure the disc or wheel rotates in the
direction of the arrows on the accessory and
the tool.
• Do not use a damaged accessory. Before each
use inspect the accessory such as abrasive
wheels 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
MOUNTING WIRE CUP BRUSHES AND WIRE WHEELS
1. Place the tool on a table, guard up.
2. Thread the wheel on the spindle by hand.
3. Depress spindle lock button (c) and use a
wrench on the hub of the wire wheel or brush to
tighten the wheel.
4. To remove the wheel, reverse the above
procedure.
NOTICE: To reduce the risk of damage
to the tool, properly seat the wheel hub
before turning the tool on.
Mounting Cutting (Type 1) Wheels
Cutting wheels include diamond wheels and
abrasive discs. Abrasive cutting wheels for metal
and concrete use are available. Diamond blades
for concrete cutting can also be used. These
accessories are available at extra cost from your
local dealer or authorised service centre.
WARNING: A closed, two-sided cutting
wheel guard is re quired when using
cutting wheels. These accessories are
available at extra cost from your local
dealer or authorised service centre.
Fail ure to use proper flange and guard
can re sult in injury resulting from wheel
breakage and wheel contact. 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.
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.
MOUNTING CLOSED (TYPE 1) GUARD (FIG. 5)
1. Open the guard latch (k), and align the lugs (l)
on the guard with the slots on the gear case
(m). This will align the lugs with slots on the gear
case cover. Position the guard facing backward.
2. Push the guard down until the guard lug
engages and rotates freely in the groove on the
gear case hub.
3. Rotate guard (i) into desired working position.
The guard body should be positioned between
the spindle and the operator to provide
maximum operator protection.
62
ENGLISH
• Make sure the disc or wheel rotates
in the direction of the arrows on the
accessory and the tool.
• Avoid overloading. Should the tool
become hot, let it run a few minutes
under no load condition to cool the
accessory. Do not touch accessories
before they have cooled. The discs
become very hot during use.
• Never work with the grinding cup
without a suitable protection guard in
place.
• Do not use the power tool with a cut-
off stand.
• Never use blotters together with
bonded abrasive products.
• Be aware, the wheel continues to
rotate after the tools is switched off.
Proper Hand Position (fi g. 1, 6)
WARNING: To reduce the risk of
serious personal injury, ALWAYS use
proper hand position as shown.
WARNING: To reduce the risk of
serious personal injury, ALWAYS hold
securely in anticipation of a sudden
reaction.
Proper hand position requires one hand on the side
handle (e), with the other hand on the body of the
tool, as shown in figure 6.
Switch
WARNING: Before using the tool,
check that the handle is tightened
securely.
LOCK-OFF BUTTON AND TRIGGER SWITCH (FIG. 7)
Your cut-off tool is equipped with a lock-off
button(b).
To lock the trigger switch (a), press the lock-off
button as shown in figure 7. When the lock-off
button is depressed to the lock icon, the unit is
locked.
Always lock the trigger switch when carrying or
storing the tool to eliminate unintentional starting.
To unlock the trigger switch, press the lock-off
button (b). When the lock-off button is depressed
to the unlock icon, the unit is unlocked. The lock-off
button is colored red to indicate when the switch is
in its unlocked position.
Pull the trigger switch (a) to turn the motor ON.
Releasing the trigger switch turns the motor OFF.
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.
OPERATION
Instructions for Use
WARNING: Always observe the safety
instructions and applicable regulations.
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.
WARNING:
• Ensure all materials to be ground or
cut are secured in place.
• Secure and support the workpiece.
Use clamps or a vice to hold and
support the workpiece to a stable
platform. It is important to clamp and
support the workpiece securely to
prevent movement of the workpiece
and loss of control. Movement of
the workpiece or loss of control may
create a hazard and cause personal
injury.
• 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.
• Apply only a gentle pressure to the
tool. Do not exert side pressure on the
disc.
• Always wear regular working gloves
while operating this tool.
• The gear case becomes very hot
during use.
• Always install the guard and
appropriate disc or wheel. Do not use
excessively worn disc or wheel.
• Be sure the inner and outer flange are
mounted correctly.
17

63
ENGLISH
kickback if they bend or twist while the
tool is being used to do cut-off work
or deep grinding. To reduce the risk
of serious injury, limit the use of these
wheels with a standard Type 27 guard
to shallow cutting and notching (less
than 13 mm [1/2"] in depth). The open
side of the guard must be positioned
away from the operator. For deeper
cutting with a Type 1 cut-off wheel, use
a closed Type 1 guard. 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.
1. Allow the tool to reach full speed before
touching the tool to the work surface.
2. Apply minimum pressure to the work surface,
allowing the tool to operate at high speed.
Grinding rate is greatest when the tool operates
at high speed.
3. Position yourself so that the open-underside of
the wheel is facing away from you.
4. Once a cut is begun and a notch is established
in the workpiece, do not change the angle
of the cut. Changing the angle will cause the
wheel to bend and may cause wheel breakage.
Edge grinding wheels are not designed to
withstand side pressures caused by bending.
5. Remove the tool from the work surface before
turning the tool off. Allow the tool to stop
rotating before laying it down.
WARNING: Do not use edge grinding/
cutting wheels for surface grinding
applications because these wheels
are not designed for side pressures
encountered with surface grinding.
Wheel breakage and serious personal
injury may result.
Mounting and Using Wire Brushes
and Wire Wheels
Wire wheels and brushes can be used for removing
rust, scale and paint, and for smoothing irregular
surfaces.
NOTE: Please refer to Precautions To Take When
Wire Brushing Paint.
1. Allow the tool to reach full speed before
touching the tool to the work surface.
2. Apply minimum pressure to work surface,
allowing the tool to operate at high speed.
Material removal rate is greatest when the tool
operates at high speed.
NOTE: This tool has no provision to lock the switch in
the ON position, and should never be locked ON by
any other means.
WARNING: Hold the side handle and
body of the tool firmly to maintain
control of the tool at start up and during
use and until the wheel or accessory
stops rotating. Make sure the wheel has
come to a complete stop be fore laying
the tool down.
WARNING: Allow the tool to reach full
speed before touching tool to the work
surface. Lift the tool from the work
surface before turning the tool off.
Spindle Lock (fi g. 1)
The spindle lock (c) is provided to prevent the
spindle from rotating when installing or removing
wheels. Operate the spindle lock only when the tool
is turned off, unplugged from the power supply, and
has come to a complete stop.
NOTICE: To reduce the risk of damage
to the tool, do not engage the spindle
lock while the tool is operating. Damage
to the tool will result and attached
accessory may spin off possibly
resulting in injury.
To engage the lock, depress the spindle lock button
(c) and rotate the spindle until you are unable to
rotate the spindle further.
Using Depressed Centre Grinding
Wheels
SURFACE GRINDING WITH GRINDING WHEELS
1. Allow the tool to reach full speed before
touching the tool to the work surface.
2. Apply minimum pressure to the work surface,
allowing the tool to operate at high speed.
Grinding rate is greatest when the tool operates
at high speed.
3. Maintain a 20° to 30° angle between the tool
and work surface.
4. Continuously move the tool in a forward and
back motion to avoid creating gouges in the
work surface.
5. Remove the tool from work surface before
turning tool off. Allow the tool to stop rotating
before laying it down.
EDGE GRINDING WITH GRINDING WHEELS
WARNING: Wheels used for cutting
and edge grinding may break or
64
ENGLISH
PERSONAL SAFETY
1. No children or pregnant women should enter
the work area where the paint removal is being
done until all clean up is completed.
2. A dust mask or respirator should be worn by all
persons entering the work area. The filter should
be replaced daily or whenever the wearer has
difficulty breathing.
NOTE: Only those dust masks suitable for
working with lead paint dust and fumes should
be used. Ordinary painting masks do not offer
this protection. See your local hardware dealer
for the proper respiratory protection.
3. NO EATING, DRINKING or SMOKING should
be done in the work area to prevent ingesting
contaminated paint particles. Workers should
wash and clean up BEFORE eating, drinking
or smoking. Articles of food, drink, or smoking
should not be left in the work area where dust
would settle on them.
ENVIRONMENTAL SAFETY
1. Paint should be removed in such a manner as
to minimize the amount of dust generated.
2. Areas where paint removal is occurring should
be sealed with plastic sheeting of 4 mils
thickness.
3. Wire brushing should be done in a manner to
reduce tracking of paint dust outside the work
area.
CLEANING AND DISPOSAL
1. All surfaces in the work area should be
vacuumed and thoroughly cleaned daily for the
duration of the wire brushing project. Vacuum
filter bags should be changed frequently.
2. Plastic drop cloths should be gathered up and
disposed of along with any dust chips or other
removal debris. They should be placed in sealed
refuse receptacles and disposed of through
regular trash pick-up procedures.
During clean up, children and pregnant women
should be kept away from the immediate work
area.
3. All toys, washable furniture and utensils used by
children should be washed thoroughly before
being used again.
Metal Applications
When using the tool in metal applications, make
sure that a residual current device (RCD) has been
inserted to avoid residual risks caused by metal
swarf.
3. Maintain a 5° to 10° angle between the tool and
work surface for wire cup brushes.
4. Maintain contact between the edge of the wheel
and the work surface with wire wheels.
5. Continuously move the tool in a forward and
back motion to avoid creating gouges in the
work surface. Allowing the tool to rest on the
work surface without moving, or moving the tool
in a circular motion causes burning and swirling
marks on the work surface.
6. Remove the tool from the work surface before
turning the tool off. Allow the tool to stop
rotating before setting it down.
CAUTION: Use extra care when
working over an edge, as a sudden
sharp movement of grinder may be
experienced.
Using Cutting (Type 1) Wheels
WARNING: Do not use edge grinding/
cutting wheels for surface grinding
applications because these wheels
are not designed for side pressures
encountered with surface grinding.
Wheel breakage and injury may result.
1. Allow tool to reach full speed before touching
tool to work surface.
2. Apply minimum pressure to work surface,
allowing tool to operate at high speed. Cutting
rate is greatest when the tool operates at high
speed.
3. Once a cut is begun and a notch is established
in the workpiece, do not change the angle
of the cut. Changing the angle will cause the
wheel to bend and may cause wheel breakage.
4. Remove the tool from work surface before
turning tool off. Allow the tool to stop rotating
before setting it down.
Precautions To Take When Wire
Brushing Paint
1. Wire brushing of lead based paint is NOT
RECOMMENDED due to the difficulty of
controlling the contaminated dust. The greatest
danger of lead poisoning is to children and
pregnant women.
2. Since it is difficult to identify whether or not a
paint contains lead without a chemical analysis,
we recommend the following precautions when
wire brushing any paint:
18