Makita DGA411 User manual

DGA411, DGA412,
DGA413, DGA414
DGA461, DGA462,
DGA463, DGA464
DGA511, DGA512,
DGA513, DGA514
EN Cordless Angle Grinder INSTRUCTION MANUAL 10
FR Meuleuse d’Angle sans Fil MANUEL D’INSTRUCTIONS 30
DE Akku-Winkelschleifer BETRIEBSANLEITUNG 52
IT Smerigliatrice angolare a
batteria ISTRUZIONI PER L’USO 74
NL Haakse accuslijpmachine GEBRUIKSAANWIJZING 97
ES Esmeriladora Angular
Inalámbrica
MANUAL DE
INSTRUCCIONES 119
PT Esmerilhadeira Angular a
Bateria MANUAL DE INSTRUÇÕES 141
DA Ledningsfri vinkelsliber BRUGSANVISNING 162
EL 
  183
TR  KULLANMA KILAVUZU 207

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16 mm (5/8″) 16 mm (5/8″)
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10 ENGLISH
ENGLISH (Original instructions)
SPECIFICATIONS
Model: DGA411 DGA412 DGA413 DGA414
Applicable grinding wheel Max. wheel diameter 100 mm
Max. wheel thickness 6.4 mm
󰀨 Max. wheel diameter 105 mm
Max. wheel thickness 3.2 mm
Applicable wire wheel brush Max. wheel diameter 100 mm
Max. wheel thickness 20 mm
Spindle thread M10
Max. spindle length 18 mm
No load speed (n0) / Rated speed (n) 8,500 min-1
Overall length with BL1840B 382 mm
Net weight 2.2 - 3.6 kg 2.2 - 3.7 kg
Rated voltage D.C. 18 V
Model: DGA461 DGA462 DGA463 DGA464
Applicable grinding wheel Max. wheel diameter 115 mm
Max. wheel thickness 7.2 mm
󰀨 Max. wheel diameter 115 mm
Max. wheel thickness 3.2 mm
Applicable wire wheel brush Max. wheel diameter 115 mm
Max. wheel thickness 20 mm
Spindle thread 
Max. spindle length 23 mm
No load speed (n0) / Rated speed (n) 8,500 min-1
Overall length with BL1840B 382 mm
Net weight 2.3 - 3.8 kg 2.4 - 3.9 kg
Rated voltage D.C. 18 V
Model: DGA511 DGA512 DGA513 DGA514
Applicable grinding wheel Max. wheel diameter 125 mm
Max. wheel thickness 7.2 mm
󰀨 Max. wheel diameter 125 mm
Max. wheel thickness 3.2 mm
Applicable wire wheel brush Max. wheel diameter 125 mm
Max. wheel thickness 20 mm
Spindle thread 
Max. spindle length 23 mm
No load speed (n0) / Rated speed (n) 8,500 min-1
Overall length with BL1840B 382 mm
Net weight 2.3 - 3.8 kg 2.4 - 3.8 kg 2.4 - 3.9 kg
Rated voltage D.C. 18 V
 
without notice.
 󰀨
 󰀨-
est combinations, according to EPTA-Procedure 01/2014, are shown in the table.

11 ENGLISH
Applicable battery cartridge and charger
 BL1815N / BL1820B / BL1830B / BL1840B / BL1850B / BL1860B
Charger DC18RC / DC18RD / DC18RE / DC18SD / DC18SE / DC18SF /
DC18SH / DC18WC
 
residence.
WARNING: Only use the battery cartridges and chargers listed above.

Recommended cord connected power source
Portable power pack PDC01
 
 
Symbols


meaning before use.
Read instruction manual.


󰀨
operations.
Ni-MH
Li-ion

Due to the presence of hazardous com-
ponents in the equipment, waste electrical
and electronic equipment, accumulators

on the environment and human health.
Do not dispose of electrical and electronic
appliances or batteries with household
waste!
In accordance with the European Directive
on waste electrical and electronic equip-
ment and on accumulators and batteries
and waste accumulators and batteries,
as well as their adaptation to national law,
waste electrical equipment, batteries and

and delivered to a separate collection point
for municipal waste, operating in accor-
dance with the regulations on environmen-
tal protection.

crossed-out wheeled bin placed on the
equipment.
Intended use
The tool is intended for grinding, sanding, wire brush-
ing, hole cutting and cutting of metal and stone materi-
als without the use of water.
Noise

Model Sound pressure
level (LpA) : (dB(A))
Sound power level
(LWA) : (dB(A))
Uncertainty (K) :
(dB(A))
DGA411 83 91 3
DGA412 83 91 3
DGA413 83 91 3
DGA414 83 91 3
DGA461 82 90 3
DGA462 82 90 3
DGA463 82 90 3
DGA464 82 90 3
DGA511 82 90 3
DGA512 82 90 3
DGA513 82 90 3
DGA514 82 90 3

12 ENGLISH
NOTE: The declared noise emission value(s) has been measured in accordance with a standard test method and

NOTE:
WARNING: Wear ear protection.
WARNING: 󰀨-
ue(s) depending on the ways in which the tool is used especially what kind of workpiece is processed.
WARNING: Be sure to identify safety measures to protect the operator that are based on an estimation
of exposure in the actual conditions of use (taking account of all parts of the operating cycle such as the
󰀨
WARNING: Grinding thin sheets of metal or other easily vibrating structures with a large surface can
result in a total noise emission much higher (up to 15 dB) than the declared noise emission values.

Take the increased noise emission into consideration for both the risk assessment of noise exposure and
selecting adequate hearing protection.
Vibration

Work mode: surface grinding with normal side grip
Model Vibration emission (ah, AG) : (m/s2) Uncertainty (K) : (m/s2)
DGA411 4.5 1.5
DGA412 4.5 1.5
DGA413 4.5 1.5
DGA414 4.5 1.5
DGA461 6.5 1.5
DGA462 6.5 1.5
DGA463 6.5 1.5
DGA464 6.5 1.5
DGA511 6.5 1.5
DGA512 6.5 1.5
DGA513 6.5 1.5
DGA514 6.5 1.5
Work mode: surface grinding with anti vibration side grip
Model Vibration emission (ah, AG) : (m/s2) Uncertainty (K) : (m/s2)
DGA411 4.0 1.5
DGA412 4.0 1.5
DGA413 4.0 1.5
DGA414 4.0 1.5
DGA461 6.0 1.5
DGA462 6.0 1.5
DGA463 6.0 1.5
DGA464 6.0 1.5
DGA511 6.0 1.5
DGA512 6.0 1.5
DGA513 6.0 1.5
DGA514 6.0 1.5

13 ENGLISH
Work mode: disc sanding with normal side grip
Model Vibration emission (ah, DS) : (m/s2) Uncertainty (K) : (m/s2)
DGA411 2.5 m/s2or less 1.5
DGA412 2.5 m/s2or less 1.5
DGA413 2.5 m/s2or less 1.5
DGA414 2.5 m/s2or less 1.5
DGA461 2.5 m/s2or less 1.5
DGA462 2.5 m/s2or less 1.5
DGA463 2.5 m/s2or less 1.5
DGA464 2.5 m/s2or less 1.5
DGA511 2.5 m/s2or less 1.5
DGA512 2.5 m/s2or less 1.5
DGA513 2.5 m/s2or less 1.5
DGA514 2.5 m/s2or less 1.5
Work mode: disc sanding with anti vibration side grip
Model Vibration emission (ah, DS) : (m/s2) Uncertainty (K) : (m/s2)
DGA411 2.5 m/s2or less 1.5
DGA412 2.5 m/s2or less 1.5
DGA413 2.5 m/s2or less 1.5
DGA414 2.5 m/s2or less 1.5
DGA461 2.5 m/s2or less 1.5
DGA462 2.5 m/s2or less 1.5
DGA463 2.5 m/s2or less 1.5
DGA464 2.5 m/s2or less 1.5
DGA511 2.5 m/s2or less 1.5
DGA512 2.5 m/s2or less 1.5
DGA513 2.5 m/s2or less 1.5
DGA514 2.5 m/s2or less 1.5
NOTE: The declared vibration total value(s) has been measured in accordance with a standard test method and

NOTE:
WARNING: 󰀨
value(s) depending on the ways in which the tool is used especially what kind of workpiece is processed.
WARNING: Be sure to identify safety measures to protect the operator that are based on an estimation
of exposure in the actual conditions of use (taking account of all parts of the operating cycle such as the
󰀨
WARNING: The declared vibration emission value is used for main applications of the power tool. However if
󰀨
EC Declaration of Conformity
For European countries only

to this instruction manual.
SAFETY WARNINGS
General power tool safety warnings
WARNING Read all safety warnings, instructions,

power tool. Failure to follow all instructions listed below

Save all warnings and instruc-
tions for future reference.
-


14 ENGLISH
Cordless grinder safety warnings
Safety warnings common for grinding, sanding,
󰀨
1. This power tool is intended to function as a
grinder, sander, wire brush, hole cutter or cut-
󰀨

this power tool. Failure to follow all instructions


2. Operations such as polishing are not to be
performed with this power tool. Operations for


3. Do not convert this power tool to operate in

 Such a con-


4. Do not use accessories which are not spe-

manufacturer.

safe operation.
5. The rated speed of the accessory must be at
least equal to the maximum speed marked on
the power tool. Accessories running faster than

6. The outside diameter and the thickness of your
accessory must be within the capacity rating
of your power tool.

7. The dimensions of the accessory mounting
-
ware of the power tool. Accessories that do not
match the mounting hardware of the power tool


8. 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 acces-
sory 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 acces-

time.
9. Wear personal protective equipment.
Depending on application, use face shield,
safety goggles or safety glasses. As appro-
priate, wear dust mask, hearing protectors,
gloves and workshop apron capable of stop-
ping small abrasive or workpiece fragments.


The dust mask or respirator must be capable



10. Keep bystanders a safe distance away from
work area. Anyone entering the work area
must wear personal protective equipment.


area of operation.
11. Hold the power tool by insulated gripping
surfaces only, when performing an operation
where the cutting tool may contact hidden
wiring. Contact with a "live" wire will also make
exposed metal parts of the power tool "live" and
could give the operator an electric shock.
12. Never lay the power tool down until the acces-
sory has come to a complete stop. The spinning


13. Do not run the power tool while carrying it at
your side. Accidental contact with the spinning


14. 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

15. 
materials. Sparks could ignite these materials.
16. Do not use accessories that require liquid
coolants. Using water or other liquid coolants

Kickback and related warnings:
Kickback is a sudden reaction to a pinched or snagged
-

-
trolled power tool to be forced in the direction opposite

For example, if an abrasive wheel is snagged or

entering into the pinch point can dig into the surface of
the material causing the wheel to climb out or kick out.

operator, depending on direction of the wheel’s move-

break under these conditions.
Kickback is the result of power tool misuse and/or
incorrect operating procedures or conditions and can be

1.

power tool and position your body and arms
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 reactions
or kickback forces, if proper precautions are taken.
2. Never place your hand near the rotating acces-
sory.
3. 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.
4. Use special care when working corners, sharp
edges, etc. Avoid bouncing and snagging the
accessory. Corners, sharp edges or bouncing

and cause loss of control or kickback.

15 ENGLISH
5. Do not attach a saw chain woodcarving blade,
segmented diamond wheel with a peripheral
gap greater than 10 mm or toothed saw blade.
Such blades create frequent kickback and loss of
control.
󰀨
operations:
1. 

designed for the selected wheel. Wheels for
which the power tool was not designed cannot be

2. The grinding surface of centre depressed
wheels must be mounted below the plane of
the guard lip.


3. 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, acci-
dental contact with wheel and sparks that could
ignite clothing.
4.
-
tions. For example: do not grind with the side of
󰀨󰀨
for peripheral grinding, side forces applied to these

5. 
of correct size and shape for your selected
wheel.

󰀨󰀨

6. Do not use worn down wheels from larger
power tools. A wheel intended for larger power
tool is not suitable for the higher speed of a

7. When using dual purpose wheels always use
the correct guard for the application being
performed.
not provide the desired level of guarding, which

󰀨
operations:
1. 󰀨-
sive pressure. Do not attempt to make an
excessive depth of cut. Overstressing the wheel

or binding of the wheel in the cut and the possibil-

2. Do not position your body in line with and
behind the rotating wheel. When the wheel, at

-

3. When the wheel is binding or when interrupt-
󰀨
tool and hold it motionless until the wheel
comes to a complete stop. Never attempt to
󰀨
the wheel is in motion otherwise kickback may
occur. Investigate and take corrective action to
eliminate the cause of wheel binding.
4. Do not restart the cutting operation in the
workpiece. Let the wheel reach full speed and
carefully re-enter the cut.
walk up or kickback if the power tool is restarted in
the workpiece.
5. Support panels or any oversized workpiece to
minimize the risk of wheel pinching and kick-
back. 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.
6. Use extra caution when making a “pocket cut”
into existing walls or other blind areas. The
-

7. Do not attempt to do curved cutting.
Overstressing the wheel increases the loading and



8. Before using a segmented diamond wheel,
make sure that the diamond wheel has the
peripheral gap between segments of 10 mm or
less, only with a negative rake angle.

1. Use proper sized sanding disc paper. Follow
manufacturers recommendations, when
selecting sanding paper. Larger sanding paper
-

tearing of the disc or kickback.

operations:
1. 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.
penetrate light clothing and/or skin.
2. 
brushing, do not allow any interference of the
wire wheel or brush with the guard. Wire wheel

and centrifugal forces.
Additional Safety Warnings:
1. When using depressed centre grinding wheels,

wheels.
2. NEVER USE Stone Cup type wheels with this
grinder. This grinder is not designed for these


3. Be careful not to damage the spindle, the

lock nut. Damage to these parts could result in
wheel breakage.
4. Make sure the wheel is not contacting the
workpiece before the switch is turned on.
5. Before using the tool on an actual workpiece,
let it run for a while. Watch for vibration or
wobbling that could indicate poor installation
or a poorly balanced wheel.
6. -
form the grinding.

16 ENGLISH
7. Do not leave the tool running. Operate the tool
only when hand-held.
8. Do not touch the workpiece immediately after
operation; it may be extremely hot and could
burn your skin.
9. Do not touch accessories immediately after
operation; it may be extremely hot and could
burn your skin.
10. Observe the instructions of the manufacturer
for correct mounting and use of wheels.
Handle and store wheels with care.
11. Do not use separate reducing bushings or
adaptors to adapt large hole abrasive wheels.
12. 
13. 
hole wheel, ensure that the thread in the wheel
is long enough to accept the spindle length.
14. Check that the workpiece is properly
supported.
15. Pay attention that the wheel continues to
󰀨
16. If working place is extremely hot and humid,
or badly polluted by conductive dust, use a
short-circuit breaker (30 mA) to assure opera-
tor safety.
17. Do not use the tool on any materials contain-
ing asbestos.
18. 󰀨
the dust collecting wheel guard if required by
domestic regulation.
19. Cutting discs must not be subjected to any
lateral pressure.
20. Do not use cloth work gloves during operation.

causes tool breakage.
21. Before operation, make sure that there is no
buried object such as electric pipe, water pipe
or gas pipe in the workpiece. 
cause an electric shock, electrical leakage or gas
leak.
22. If a blotter is attached to the wheel, do not
remove it. The diameter of the blotter must be


23. Before installing a grinding wheel, always
check that the blotter part does not have any
abnormalities such as chips or cracks.
24. Tighten the lock nut properly. Overtightening
󰀩

SAVE THESE INSTRUCTIONS.
WARNING: DO NOT let comfort or familiarity
with product (gained from repeated use) replace
strict adherence to safety rules for the subject
product. MISUSE or failure to follow the safety
rules stated in this instruction manual may cause
serious personal injury.
Important safety instructions for
battery cartridge
1. Before using battery cartridge, read all instruc-
tions and cautionary markings on (1) battery
charger, (2) battery, and (3) product using
battery.
2. Do not disassemble or tamper with the battery
cartridge.
or explosion.
3. If operating time has become excessively
shorter, stop operating immediately. It may
result in a risk of overheating, possible burns
and even an explosion.
4. If electrolyte gets into your eyes, rinse them
out with clear water and seek medical atten-
tion right away. It may result in loss of your
eyesight.
5. Do not short the battery cartridge:
(1) Do not touch the terminals with any con-
ductive material.
(2) Avoid storing battery cartridge in a con-
tainer with other metal objects such as
nails, coins, etc.
(3) Do not expose battery cartridge to water
or rain.
A battery short can cause a large current

breakdown.
6. Do not store and use the tool and battery car-
tridge in locations where the temperature may
reach or exceed 50 °C (122 °F).
7. Do not incinerate the battery cartridge even if
it is severely damaged or is completely worn

8. Do not nail, cut, crush, throw, drop the battery
cartridge, or hit against a hard object to the
battery cartridge.

9. Do not use a damaged battery.
10. The contained lithium-ion batteries are subject
to the Dangerous Goods Legislation require-
ments.

forwarding agents, special requirement on pack-
aging and labeling must be observed.
For preparation of the item being shipped, consult-
ing an expert for hazardous material is required.

national regulations.
󰀨

around in the packaging.
11. When disposing the battery cartridge, remove
it from the tool and dispose of it in a safe
place. Follow your local regulations relating to
disposal of battery.
12. Use the batteries only with the products
 Installing the batteries to
-

13. If the tool is not used for a long period of time,
the battery must be removed from the tool.

17 ENGLISH
14. During and after use, the battery cartridge may
take on heat which can cause burns or low
temperature burns. Pay attention to the han-
dling of hot battery cartridges.
15. Do not touch the terminal of the tool imme-
diately after use as it may get hot enough to
cause burns.
16. Do not allow chips, dust, or soil stuck into the
terminals, holes, and grooves of the battery
cartridge.
-

17. Unless the tool supports the use near
high-voltage electrical power lines, do not use
the battery cartridge near high-voltage electri-
cal power lines.

18. Keep the battery away from children.
SAVE THESE INSTRUCTIONS.
CAUTION: Only use genuine Makita batteries.
Use of non-genuine Makita batteries, or batteries that



charger.
Tips for maintaining maximum
battery life
1. Charge the battery cartridge before completely
discharged. Always stop tool operation and
charge the battery cartridge when you notice
less tool power.
2. Never recharge a fully charged battery car-
tridge. Overcharging shortens the battery
service life.
3. Charge the battery cartridge with room tem-
perature at 10 °C - 40 °C (50 °F - 104 °F). Let
a hot battery cartridge cool down before
charging it.
4. When not using the battery cartridge, remove
it from the tool or the charger.
5. Charge the battery cartridge if you do not use
it for a long period (more than six months).
Important safety instructions for
wireless unit
1. Do not disassemble or tamper with the wire-
less unit.
2. Keep the wireless unit away from young chil-
dren. If accidentally swallowed, seek medical
attention immediately.
3. Use the wireless unit only with Makita tools.
4. Do not expose the wireless unit to rain or wet
conditions.
5. Do not use the wireless unit in places where
the temperature exceeds 50 °C (122 °F).
6. Do not operate the wireless unit in places
where medical instruments, such as heart
pace makers are nearby.
7. Do not operate the wireless unit in places
where automated devices are nearby. If oper-

or error.
8. Do not operate the wireless unit in places
under high temperature or places where
static electricity or electrical noise could be
generated.
9. The wireless unit can produce electromagnetic

user.
10. The wireless unit is an accurate instrument. Be
careful not to drop or strike the wireless unit.
11. Avoid touching the terminal of the wireless
unit with bare hands or metallic materials.
12. Always remove the battery on the product
when installing the wireless unit into it.
13. When opening the lid of the slot, avoid the
place where dust and water may come into the
slot. Always keep the inlet of the slot clean.
14. Always insert the wireless unit in the correct
direction.
15. Do not press the wireless activation button
on the wireless unit too hard and/or press the
button with an object with a sharp edge.
16. Always close the lid of the slot when
operating.
17. Do not remove the wireless unit from the slot
while the power is being supplied to the tool.

unit.
18. Do not remove the sticker on the wireless unit.
19. Do not put any sticker on the wireless unit.
20. Do not leave the wireless unit in a place where
static electricity or electrical noise could be
generated.
21. Do not leave the wireless unit in a place sub-
ject to high heat, such as a car sitting in the
sun.
22. Do not leave the wireless unit in a dusty or
powdery place or in a place corrosive gas
could be generated.
23. Sudden change of the temperature may bedew
the wireless unit. Do not use the wireless unit
until the dew is completely dried.
24. When cleaning the wireless unit, gently wipe
with a dry soft cloth. Do not use benzine, thin-
ner, conductive grease or the like.
25. When storing the wireless unit, keep it in the
supplied case or a static-free container.
26. Do not insert any devices other than Makita
wireless unit into the slot on the tool.
27. Do not use the tool with the lid of the slot dam-
aged.
cause malfunction.
28. Do not pull and/or twist the lid of the slot more
than necessary.󰀨
from the tool.
29. Replace the lid of the slot if it is lost or
damaged.
SAVE THESE INSTRUCTIONS.

18 ENGLISH
FUNCTIONAL DESCRIPTION
CAUTION: Always be sure that the tool is
󰀨
before adjusting or checking function on the tool.
Installing or removing battery cartridge
CAUTION: 󰀨
installing or removing of the battery cartridge.
CAUTION: Hold the tool and the battery car-

cartridge.
󰀨


Fig.1: 1. Red indicator 2. Button 3.

while sliding the button on the front of the cartridge.





CAUTION: Always install the battery cartridge
fully until the red indicator cannot be seen. If not,


CAUTION: Do not install the battery cartridge
forcibly.

Indicating the remaining battery capacity
Only for battery cartridges with the indicator
Fig.2: 1. Indicator lamps 2. Check button
-

light up for a few seconds.
Indicator lamps Remaining
capacity
Lighted 󰀨 Blinking
75% to 100%
50% to 75%
25% to 50%
0% to 25%
Charge the



malfunctioned.
NOTE: Depending on the conditions of use and the
󰀨

NOTE:

Indicating the remaining battery
capacity



Fig.3: 1.
-
ing table.
Battery indicator status Remaining
battery
capacity
On 󰀨 Blinking
50% to 100%
20% to 50%
0% to 20%
Charge the

Tool / battery protection system
-
󰀨
-


Overload protection
When the tool is operated in a manner that causes it to


󰀨
become overloaded. Then turn the tool on to restart.
Overheat protection

-
uation, let the tool cool before turning the tool on again.
On Blinking


tool again.

19 ENGLISH
Overdischarge protection



Releasing protection lock


In this situation, the tool does not start even if turning
󰀨


On 󰀨 Blinking
Protections against other causes


Take all the following steps to clear the causes, when the tool

1. 󰀨
 

 


Shaft lock
WARNING: Never actuate the shaft lock when
the spindle is moving.
the tool damage.
Press the shaft lock to prevent spindle rotation when
installing or removing accessories.
Fig.4: 1. Shaft lock
Switch action
CAUTION: Before installing the battery car-
tridge into the tool, always check to see that the
slide switch actuates properly and returns to the
"OFF" position when the rear of the slide switch
is depressed.
CAUTION: Switch can be locked in "ON" posi-
tion for ease of operator comfort during extended
use. Apply caution when locking tool in "ON"

To start the tool, press down the rear end of the slide
switch and then slide it toward the “I (ON)” position. For
continuous operation, press down the front end of the
slide switch to lock it.
Fig.5: 1. Slide switch
To stop the tool, press down the rear end of the slide
switch so that it returns to the “O (OFF)” position.
Fig.6: 1. Slide switch
Speed adjusting dial
-

the number on the dial and the corresponding rotation
speed.
Fig.7: 1.
Number Speed
13,000 min-1
24,500 min-1
36,000 min-1
47,500 min-1
58,500 min-1
NOTICE: If the tool is operated continuously at
low speed for a long time, the motor will get over-
loaded, resulting in tool malfunction.
NOTICE: The speed adjusting dial can be turned
only as far as 5 and back to 1. Do not force it past
5 or 1, or the speed adjusting function may no
longer work.
Automatic speed change function
Fig.8: 1. Mode indicator
Mode indicator status Operation mode
High speed mode
High torque mode
This tool has "high speed mode" and "high torque

depending on the work load. When mode indicator
lights up during operation, the tool is in high torque
mode.
Accidental re-start preventive
function

ON, the tool does not start.
󰀨
Active Feedback sensing
Technology


󰀨
further rotation of the spindle (it does not prevent
kickback).
󰀨
cause of sudden drop in the rotation speed, and then
turn the tool on.
Soft start feature
Soft start feature reduces starting reaction.

20 ENGLISH
Electric brake
Only for model DGA413 / DGA414 / DGA463 /
DGA464 / DGA513 / DGA514
󰀨


the switch still on.
ASSEMBLY
CAUTION: Always be sure that the tool is
󰀨
before adjusting or checking function on the tool.
Installing side grip (handle)
CAUTION: Always be sure that the side grip is
installed securely before operation.


Fig.9
Installing or removing wheel guard


󰀨
WARNING: When using a depressed center


the closed side of the guard always points toward
the operator.
WARNING: 󰀨
/ diamond wheel, be sure to use only the special
󰀨
For tool with locking screw type
wheel guard
Mount the wheel guard with the protrusions on the
wheel guard band aligned with the notches on the bear-
ing box. Then rotate the wheel guard to such an angle
that it can protect the operator according to work. Be

To remove wheel guard, follow the installation proce-
dure in reverse.
Fig.10: 1. Wheel guard 2. Bearing box 3. Screw
For tool with clamp lever type wheel
guard
Loosen the screw, and then pull the lever in the direc-
tion of the arrow. Mount the wheel guard with the protru-
sions on the wheel guard band aligned with the notches
on the bearing box. Then rotate the wheel guard to such
an angle that it can protect the operator according to
work.
Fig.11: 1. Wheel guard 2. Bearing box 3. Screw
4. Lever
Pull the lever in direction of the arrow. Then tighten the
wheel guard with fastening the screw. Be sure to tighten


Fig.12: 1. Screw 2. Lever
To remove wheel guard, follow the installation proce-
dure in reverse.
Clip-on cutting wheel guard
attachment
Optional accessory
NOTE:󰀨
wheel guard attachment can be used with the wheel
guard (for grinding wheel).
Not available in some countries.
Fig.13
Installing or removing depressed

Optional accessory
WARNING: When using a depressed center

on the tool so that the closed side of the guard
always points toward the operator.
WARNING: Make sure that the mounting part



result in the dangerous vibration.


the straight part at the bottom of the spindle.


Fig.14: 1. Lock nut 2. Depressed center wheel
3.4. Mounting part

that the spindle cannot revolve, then use the lock nut

Fig.15: 1. Lock nut wrench 2. Shaft lock
To remove the wheel, follow the installation procedure
in reverse.