Makita HR001G User manual

HR001G
HR002G
HR003G
HR004G
EN
Cordless Combination Hammer INSTRUCTION MANUAL 11
SV Batteridriven
kombinationshammare BRUKSANVISNING 26
NO Batteridrevet
kombinasjonshammer BRUKSANVISNING 40
FI
Akkukäyttöinen yhdistelmäpora KÄYTTÖOHJE 54
DA Akku-kombinationshammer BRUGSANVISNING 68
LV Bezvadu kombinētais veseris LIETOŠANAS INSTRUKCIJA 83
LT
Belaidis kombinacinis gręžtuvas NAUDOJIMO INSTRUKCIJA 98
ET
Juhtmeta kombinatsioonihaamer KASUTUSJUHEND 113
RU Аккумуляторный
трехрежимный перфоратор РУКОВОДСТВО ПО ЭКСПЛУАТАЦИИ 128

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11 ENGLISH
ENGLISH (Original instructions)
SPECIFICATIONS
Model: HR001G HR002G HR003G HR004G
Capacities Concrete 28 mm
Core bit 54 mm
Diamond core bit (dry type) 65 mm
Steel 13 mm
Wood 32 mm
No load speed 0 - 980 min-1
Blows per minute 0 - 5,000 min-1
Rated voltage D.C. 36 V - 40 V max
Overall length with BL4025 358 mm 389 mm 358 mm 389 mm
with BL4040 373 mm 404 mm 373 mm 404 mm
Net weight 3.9 - 4.6 kg 4.1 - 4.6 kg 3.9 - 4.6 kg 4.0 - 4.5 kg
Optional accessory
Model: DX12 (For HR001G/HR003G) DX14 (For HR002G/HR004G)
Suction performance 350 l/min
Operating stroke Up to 190 mm
Suitable drill bit Up to 260 mm
Rated voltage D.C. 36 V - 40 V max
Net weight 1.6 kg
• Due to our continuing program of research and development, the specications herein are subject to change without notice.
• Specications may di󰀨er from country to country.
• The weight may di󰀨er depending on the attachment(s), including the battery cartridge. The lightest and heavi-
est combination, according to EPTA-Procedure 01/2014, are shown in the table.
Applicable battery cartridge and charger
Battery cartridge BL4025 / BL4040
Charger DC40RA
• Some of the battery cartridges and chargers listed above may not be available depending on your region of residence.
WARNING: Only use the battery cartridges and chargers listed above. Use of any other battery cartridges
and chargers may cause injury and/or re.
Intended use
The tool is intended for hammer drilling and drilling in
brick, concrete and stone as well as for chiselling work.
It is also suitable for drilling without impact in wood,
metal, ceramic and plastic.
Noise
The typical A-weighted noise level determined accord-
ing to EN60745-2-6:
Model HR001G
Sound pressure level (LpA) : 95 dB(A)
Sound power level (LWA) : 106 dB (A)
Uncertainty (K) : 3 dB(A)
Model HR002G
Sound pressure level (LpA) : 93 dB(A)
Sound power level (LWA) : 104 dB (A)
Uncertainty (K) : 3 dB(A)
Model HR003G
Sound pressure level (LpA) : 95 dB(A)
Sound power level (LWA) : 106 dB (A)
Uncertainty (K) : 3 dB(A)
Model HR004G
Sound pressure level (LpA) : 93 dB(A)
Sound power level (LWA) : 104 dB (A)
Uncertainty (K) : 3 dB(A)
Model HR001G with DX12
Sound pressure level (LpA) : 93 dB(A)
Sound power level (LWA) : 104 dB (A)
Uncertainty (K) : 3 dB(A)
Model HR002G with DX14
Sound pressure level (LpA) : 93 dB(A)
Sound power level (LWA) : 104 dB (A)
Uncertainty (K) : 3 dB(A)

12 ENGLISH
Model HR003G with DX12
Sound pressure level (LpA) : 93 dB(A)
Sound power level (LWA) : 104 dB (A)
Uncertainty (K) : 3 dB(A)
Model HR004G with DX14
Sound pressure level (LpA) : 93 dB(A)
Sound power level (LWA) : 104 dB (A)
Uncertainty (K) : 3 dB(A)
NOTE:
The declared noise emission value(s) has been
measured in accordance with a standard test method
and may be used for comparing one tool with another.
NOTE: The declared noise emission value(s) may
also be used in a preliminary assessment of exposure.
WARNING: Wear ear protection.
WARNING: The noise emission during actual
use of the power tool can di󰀨er from the declared val-
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 estima-
tion of exposure in the actual conditions of use (tak-
ing account of all parts of the operating cycle such
as the times when the tool is switched o󰀨 and when
it is running idle in addition to the trigger time).
Vibration
The following table shows the vibration total value
(tri-axial vector sum) determined according to applica-
ble standard.
Model HR001G
Work mode Vibration
emission
Uncertainty (K) Applicable
standard
Hammer drill-
ing into con-
crete (ah, HD)
7.0 m/s21.5 m/s2EN60745-2-6
Hammer
drilling into
concrete with
DX12 (ah, HD)
7.0 m/s21.5 m/s2EN60745-2-6
Chiselling func-
tion with side
grip (ah, Cheq)
6.5 m/s21.5 m/s2EN60745-2-6
Drilling into
metal (ah, D)
2.5 m/s2or
less
1.5 m/s2EN60745-2-1
Model HR002G
Work mode Vibration
emission
Uncertainty (K) Applicable
standard
Hammer drill-
ing into con-
crete (ah, HD)
6.5 m/s21.5 m/s2EN60745-2-6
Hammer
drilling into
concrete with
DX14 (ah, HD)
6.0 m/s21.5 m/s2EN60745-2-6
Chiselling func-
tion with side
grip (ah, Cheq)
7.5 m/s21.5 m/s2EN60745-2-6
Drilling into
metal (ah, D)
2.5 m/s21.5 m/s2EN60745-2-1
Model HR003G
Work mode Vibration
emission
Uncertainty (K) Applicable
standard
Hammer drill-
ing into con-
crete (ah, HD)
7.0 m/s21.5 m/s2EN60745-2-6
Hammer
drilling into
concrete with
DX12 (ah, HD)
7.0 m/s21.5 m/s2EN60745-2-6
Chiselling func-
tion with side
grip (ah, Cheq)
7.0 m/s21.5 m/s2EN60745-2-6
Drilling into
metal (ah, D)
2.5 m/s2or
less
1.5 m/s2EN60745-2-1
Model HR004G
Work mode Vibration
emission
Uncertainty (K) Applicable
standard
Hammer drill-
ing into con-
crete (ah, HD)
6.5 m/s21.5 m/s2EN60745-2-6
Hammer
drilling into
concrete with
DX14 (ah, HD)
6.0 m/s21.5 m/s2EN60745-2-6
Chiselling func-
tion with side
grip (ah, Cheq)
7.5 m/s21.5 m/s2EN60745-2-6
Drilling into
metal (ah, D)
2.5 m/s21.5 m/s2EN60745-2-1
NOTE: The declared vibration total value(s) has been
measured in accordance with a standard test method
and may be used for comparing one tool with another.
NOTE: The declared vibration total value(s) may also
be used in a preliminary assessment of exposure.
WARNING: The vibration emission during
actual use of the power tool can di󰀨er from the
declared 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 mea-
sures 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 times when the tool is switched
o󰀨 and when it is running idle in addition to the
trigger time).
EC Declaration of Conformity
For European countries only
The EC declaration of conformity is included as Annex A
to this instruction manual.

13 ENGLISH
SAFETY WARNINGS
General power tool safety warnings
WARNING: Read all safety warnings, instruc-
tions, illustrations and specications provided
with this power tool. Failure to follow all instructions
listed below may result in electric shock, re and/or
serious injury.
Save all warnings and instruc-
tions for future reference.
The term "power tool" in the warnings refers to your
mains-operated (corded) power tool or battery-operated
(cordless) power tool.
CORDLESS ROTARY HAMMER
SAFETY WARNINGS
1. Wear ear protectors. Exposure to noise can
cause hearing loss.
2. Use auxiliary handle(s), if supplied with the
tool. Loss of control can cause personal injury.
3.
Hold power tool by insulated gripping sur-
faces, when performing an operation where the
cutting accessory may contact hidden wiring.
Cutting accessory contacting a "live" wire may
make exposed metal parts of the power tool "live"
and could give the operator an electric shock.
4. Wear a hard hat (safety helmet), safety glasses
and/or face shield. Ordinary eye or sun glasses
are NOT safety glasses. It is also highly recom-
mended that you wear a dust mask and thickly
padded gloves.
5. Be sure the bit is secured in place before
operation.
6.
Under normal operation, the tool is designed to
produce vibration. The screws can come loose
easily, causing a breakdown or accident. Check
tightness of screws carefully before operation.
7. In cold weather or when the tool has not been
used for a long time, let the tool warm up for
a while by operating it under no load. This
will loosen up the lubrication. Without proper
warm-up, hammering operation is di󰀩cult.
8. Always be sure you have a rm footing. Be
sure no one is below when using the tool in
high locations.
9. Hold the tool rmly with both hands.
10. Keep hands away from moving parts.
11. Do not leave the tool running. Operate the tool
only when hand-held.
12. Do not point the tool at any one in the area
when operating. The bit could y out and
injure someone seriously.
13.
Do not touch the bit, parts close to the bit, or
workpiece immediately after operation; they
may be extremely hot and could burn your skin.
14. Some material contains chemicals which may
be toxic. Take caution to prevent dust inhala-
tion and skin contact. Follow material supplier
safety data.
15. Always be sure that the tool is switched
o󰀨 and the battery cartridge and the bit are
removed before handing the tool to other
person.
16. Before operation, make sure that there is no
buried object such as electric pipe, water pipe
or gas pipe in the working area. Otherwise, the
drill bit/chisel may touch them, resulting an electric
shock, electrical leakage or gas leak.
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 the battery
cartridge. It may result in a re, excessive heat,
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
ow, overheating, possible burns and even a
breakdown.
6. Do not store the tool and battery cartridge 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
out. The battery cartridge can explode in a re.
8. Do not nail, cut, crush, throw, drop the battery
cartridge, or hit against a hard object to the
battery cartridge. Such conduct may result in a
re, excessive heat, or explosion.
9. Do not use a damaged battery.
10. The contained lithium-ion batteries are subject
to the Dangerous Goods Legislation require-
ments.
For commercial transports e.g. by third parties,
forwarding agents, special requirement on pack-
aging and labeling must be observed.

14 ENGLISH
For preparation of the item being shipped, consult-
ing an expert for hazardous material is required.
Please also observe possibly more detailed
national regulations.
Tape or mask o󰀨 open contacts and pack up the
battery in such a manner that it cannot move
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
specied by Makita. Installing the batteries to
non-compliant products may result in a re, exces-
sive heat, explosion, or leak of electrolyte.
13. If the tool is not used for a long period of time,
the battery must be removed from the tool.
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. It may result in poor performance or
breakdown of the tool or battery cartridge.
17. Unless the tool supports the use near a
high-voltage electrical power lines, do not use
the battery cartridge near a high-voltage elec-
trical power lines. It may result in a malfunction
or breakdown of the tool or battery cartridge.
SAVE THESE INSTRUCTIONS.
CAUTION: Only use genuine Makita batteries.
Use of non-genuine Makita batteries, or batteries that
have been altered, may result in the battery bursting
causing res, personal injury and damage. It will
also void the Makita warranty for the Makita tool and
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-
ated, automated devices may develop malfunction
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
elds (EMF) but they are not harmful to the
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.
Doing so may cause a malfunction of the wireless
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.

15 ENGLISH
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. Water, dust, and dirt come into the slot may
cause malfunction.
28. Do not pull and/or twist the lid of the slot more
than necessary. Restore the lid if it comes o󰀨
from the tool.
29. Replace the lid of the slot if it is lost or
damaged.
SAVE THESE INSTRUCTIONS.
FUNCTIONAL
DESCRIPTION
CAUTION: Always be sure that the tool is
switched o󰀨 and the battery cartridge is removed
before adjusting or checking function on the tool.
Installing or removing battery
cartridge
CAUTION: Always switch o󰀨 the tool before
installing or removing of the battery cartridge.
CAUTION: Hold the tool and the battery car-
tridge rmly when installing or removing battery
cartridge. Failure to hold the tool and the battery
cartridge rmly may cause them to slip o󰀨 your hands
and result in damage to the tool and battery cartridge
and a personal injury.
► Fig.1: 1. Red indicator 2. Button 3. Battery cartridge
To remove the battery cartridge, slide it from the tool
while sliding the button on the front of the cartridge.
To install the battery cartridge, align the tongue on the
battery cartridge with the groove in the housing and slip
it into place. Insert it all the way until it locks in place
with a little click. If you can see the red indicator on the
upper side of the button, it is not locked completely.
CAUTION: Always install the battery cartridge
fully until the red indicator cannot be seen. If not,
it may accidentally fall out of the tool, causing injury to
you or someone around you.
CAUTION: Do not install the battery cartridge
forcibly. If the cartridge does not slide in easily, it is
not being inserted correctly.
Indicating the remaining battery
capacity
Press the check button on the battery cartridge to indi-
cate the remaining battery capacity. The indicator lamps
light up for a few seconds.
► Fig.2: 1. Indicator lamps 2. Check button
Indicator lamps Remaining
capacity
Lighted O󰀨 Blinking
75% to 100%
50% to 75%
25% to 50%
0% to 25%
Charge the
battery.
The battery
may have
malfunctioned.
NOTE: Depending on the conditions of use and the
ambient temperature, the indication may di󰀨er slightly
from the actual capacity.
Tool / battery protection system
The tool is equipped with a tool/battery protection sys-
tem. This system automatically cuts o󰀨 power to the
motor to extend tool and battery life. The tool will auto-
matically stop during operation if the tool or battery is
placed under one of the following conditions:
Overload protection
When the battery is operated in a manner that causes
it to draw an abnormally high current, the tool automat-
ically stops without any indication. In this situation, turn
the tool o󰀨 and stop the application that caused the tool
to become overloaded. Then turn the tool on to restart.
Overheat protection
When the tool or battery is overheated, the tool stops
automatically. In this case, let the tool and battery cool
before turning the tool on again.
NOTE: When the tool is overheated, the lamp blinks.
Overdischarge protection
When the battery capacity is not enough, the tool stops
automatically. In this case, remove the battery from the
tool and charge the battery.

16 ENGLISH
Switch action
WARNING: Before installing the battery car-
tridge into the tool, always check to see that the
switch trigger actuates properly and returns to
the "OFF" position when released.
► Fig.3: 1. Switch trigger
To start the tool, simply pull the switch trigger. Tool
speed is increased by increasing pressure on the switch
trigger. Release the switch trigger to stop.
Speed change
The revolutions and blows per minute can be adjusted
by turning the adjusting dial. The dial is marked 1 (low-
est speed) to 5 (full speed).
► Fig.4: 1. Adjusting dial
Refer to the table below for the relationship between the number
on the adjusting dial and the revolutions and blows per minute.
Number Revolutions per
minute
Blows per minute
5980 5,000
4870 4,440
3630 3,210
2380 1,940
1300 1,530
CAUTION: Do not turn the adjusting dial when
the tool is running. Failure to do so may result in
the loss of control of the tool and cause an injury.
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.
NOTE: Soft no-load rotation function (For
HR001G/HR002G)
When the speed adjusting dial is set to "4" or higher,
the tool automatically reduces the speed at no-load to
reduce the vibration under no-load. Once operation
starts with a bit against concrete, blows per minute
increase and reach the numbers as shown in the
table. When temperature is low and there is less
uidity in grease, the tool may not have this function
even with the motor rotating.
Lighting up the front lamp
► Fig.5: 1. Lamp
CAUTION: Do not look in the light or see the
source of light directly.
Pull the switch trigger to light up the lamp. The lamp
keeps on lighting while the switch trigger is being pulled.
The lamp goes out approximately 10 seconds after
releasing the switch trigger.
CAUTION: For HR001G/HR002G
If the lamp goes o󰀨 after blinking for a few sec-
onds, the active feedback sensing technology
is not working properly. Ask your local Makita
Service Center for repair.
NOTE: Use a dry cloth to wipe the dirt o󰀨 the lens of
the lamp. Be careful not to scratch the lens of lamp, or
it may lower the illumination.
NOTE: If the dust collection system is installed on the
tool, the lamp of the dust collection system lights up
instead of the lamp of the tool.
Reversing switch action
► Fig.6: 1. Reversing switch lever
CAUTION: Always check the direction of
rotation before operation.
CAUTION: Use the reversing switch only after
the tool comes to a complete stop. Changing the
direction of rotation before the tool stops may dam-
age the tool.
CAUTION: When not operating the tool,
always set the reversing switch lever to the neu-
tral position.
This tool has a reversing switch to change the direction
of rotation. Depress the reversing switch lever from the
A side for clockwise rotation or from the B side for coun-
terclockwise rotation.
When the reversing switch lever is in the neutral posi-
tion, the switch trigger cannot be pulled.
Changing the quick change chuck
for SDS-plus
For HR002G/HR004G
The quick change chuck for SDS-plus can be easily
exchanged for the quick change drill chuck.
Removing the quick change chuck
for SDS-plus
CAUTION: Before removing the quick change
chuck for SDS-plus, be sure to remove the bit.
Grasp the change cover of the quick change chuck
for SDS-plus and turn in the direction of the arrow
until the change cover line moves from the symbol
to the symbol. Pull forcefully in the direction of the
arrow.
► Fig.7: 1. Quick change chuck for SDS-plus
2. Change cover 3. Change cover line

17 ENGLISH
Installing the quick change drill
chuck
Check the line of the quick change drill chuck shows
the symbol. Grasp the change cover of the quick
change drill chuck and set the line to the symbol.
Place the quick change drill chuck on the spindle of the
tool. Grasp the change cover of the quick change drill
chuck and turn the change cover line to the symbol
until a click can clearly be heard.
► Fig.8: 1. Quick change drill chuck 2. Spindle
3. Change cover line 4. Change cover
Selecting the action mode
NOTICE: Do not rotate the action mode chang-
ing knob when the tool is running. The tool will be
damaged.
NOTICE: To avoid rapid wear on the mode
change mechanism, be sure that the action mode
changing knob is always positively located in one
of the three action mode positions.
Rotation with hammering
For drilling in concrete, masonry, etc., rotate the action
mode changing knob to the symbol. Use a tungsten-
carbide tipped bit (optional accessory).
► Fig.9: 1. Rotation with hammering 2. Action mode
changing knob
Rotation only
For drilling in wood, metal or plastic materials, rotate
the action mode changing knob to the symbol. Use a
twist drill bit or wood drill bit.
► Fig.10: 1. Rotation only
Hammering only
For chipping, scaling or demolition operations, rotate
the action mode changing knob to the symbol. Use a
bull point, cold chisel, scaling chisel, etc.
► Fig.11: 1. Hammering only
Hook
CAUTION: Always remove the battery when
hanging the tool with the hook.
CAUTION: Never hook the tool at high loca-
tion or on potentially unstable surface.
The hook is convenient for temporarily hanging the tool.
To use the hook, simply lift up hook until it snaps into
the open position. When not in use, always lower hook
until it snaps into the closed position.
► Fig.12: 1. Hook
► Fig.13
Connecting lanyard (tether strap) to
the hook
CAUTION: Do not use damaged hook and screws.
Before use, always check for damages, cracks or defor-
mations, and make sure that the screws are tightened.
CAUTION: Make sure that the hook is
securely installed with the screws.
CAUTION: Do not remove the battery car-
tridge while hanging the tool. The tool may fall if the
screws are not tightened.
CAUTION: Always use a locking carabiner
(multi-action and screw gate type) and be sure to
attach the lanyard (tether strap) to the double looped
portion of the hook. Improper attachment may cause
tool drop from the hook and result in personal injury.
The hook is also used for connecting the lanyard (tether
strap). Be sure to connect the lanyard (tether strap) to
the double looped portion of the hook.
► Fig.14: 1. Double looped portion of the hook
2. Lanyard (tether strap) 3. Locking cara-
biner (multi-action and screw gate type)
Adjusting the nozzle position of the
dust collection system
Optional accessory
Push in the guide while pushing up the guide adjustment
button, and then release the button at the desired position.
► Fig.15: 1. Guide 2. Guide adjustment button
NOTE: Before adjusting the nozzle position, release
the nozzle forward completely by pushing up the
guide adjustment button.
If a long drill bit is installed, extend the guide by pushing
up the extension button.
► Fig.16: 1. Extension button
Adjusting the drilling depth of the
dust collection system
Optional accessory
Slide the depth adjustment button to the desired posi-
tion while pushing it up. The distance (A) is the drilling
depth.
► Fig.17: 1. Depth adjustment button
Torque limiter
NOTICE: As soon as the torque limiter actuates,
switch o󰀨 the tool immediately. This will help pre-
vent premature wear of the tool.
NOTICE: Drill bits such as hole saw, which tend
to pinch or catch easily in the hole, are not appro-
priate for this tool. This is because they will cause
the torque limiter to actuate too frequently.
The torque limiter will actuate when a certain torque
level is reached. The motor will disengage from the
output shaft. When this happens, the drill bit will stop
turning.

18 ENGLISH
Electronic function
The tool is equipped with the electronic functions for
easy operation.
• Constant speed control
The speed control function provides the constant
rotation speed regardless of load conditions.
• Active Feedback sensing Technology (For
HR001G/HR002G)
If the tool is swung at the predetermined accelera-
tion during operation, the motor is forcibly stopped
to reduce the burden on the wrist.
NOTE: This function does not work if the acceleration
does not reach the predetermined one when the tool
is swung.
NOTE: If the bit is swung at the predetermined
acceleration during chipping, scaling, or demolishing,
the motor is forcibly stopped. In this case, release
the switch trigger, and then pull the switch trigger to
restart the tool.
ASSEMBLY
CAUTION: Always be sure that the tool is
switched o󰀨 and the battery cartridge is removed
before carrying out any work on the tool.
Side grip (auxiliary handle)
CAUTION: Always use the side grip to ensure
safe operation.
CAUTION: After installing or adjusting the
side grip, make sure that the side grip is rmly
secured.
To install the side grip, follow the steps below.
1. Loosen the thumb screw on the side grip.
► Fig.18: 1. Thumb screw
2. Attach the side grip while pressing the thumb
screw so that the grooves on the grip t in the protru-
sions on the tool barrel.
► Fig.19: 1. Thumb screw
3. Tighten the thumb screw to secure the grip. The
grip can be xed at desired angle.
Grease
Coat the shank end of the drill bit beforehand with a
small amount of grease (about 0.5 - 1 g).
This chuck lubrication assures smooth action and lon-
ger service life.
Installing or removing drill bit
Clean the shank end of the drill bit and apply grease
before installing the drill bit.
► Fig.20: 1. Shank end 2. Grease
Insert the drill bit into the tool. Turn the drill bit and push
it in until it engages.
After installing the drill bit, always make sure that the
drill bit is securely held in place by trying to pull it out.
► Fig.21: 1. Drill bit
To remove the drill bit, pull the chuck cover down all the
way and pull the drill bit out.
► Fig.22: 1. Drill bit 2. Chuck cover
Chisel angle (when chipping,
scaling or demolishing)
The chisel can be secured at the desired angle. To
change the chisel angle, rotate the action mode chang-
ing knob to the O symbol. Turn the chisel to the desired
angle.
► Fig.23: 1. Action mode changing knob
Rotate the action mode changing knob to the sym-
bol. Then make sure that the chisel is securely held in
place by turning it slightly.
Depth gauge
The depth gauge is convenient for drilling holes of
uniform depth.
Press and hold the lock button, and then insert the
depth gauge into the hex hole. Make sure that the
toothed side of the depth gauge faces the marking.
► Fig.24: 1. Depth gauge 2. Lock button 3. Marking
4. Toothed side
Adjust the depth gauge by moving it back and forth
while pressing the lock button. After the adjustment,
release the lock button to lock the depth gauge.
NOTE: Make sure that the depth gauge does not
touch the main body of the tool when attaching it.
Installing or removing the dust
collection system
Optional accessory
To install the dust collection system, insert the tool into
the dust collection system all the way until it locks in
place with a little double click.
► Fig.25
To remove the dust collection system, pull the tool while
pressing the lock-o󰀨 button.
► Fig.26: 1. Lock-o󰀨 button
Dust cup
Optional accessory
Use the dust cup to prevent dust from falling over the
tool and on yourself when performing overhead drilling
operations. Attach the dust cup to the bit as shown in
the gure. The size of bits which the dust cup can be
attached to is as follows.
Model Bit diameter
Dust cup 5 6 mm - 14.5 mm
Dust cup 9 12 mm - 16 mm
► Fig.27: 1. Dust cup

19 ENGLISH
Dust cup set
Optional accessory
Before installing the dust cup set, remove the bit from
the tool if installed.
Install the dust cup set on the tool so that the sym-
bol on the dust cup is aligned with the groove in the tool.
► Fig.28: 1. symbol 2. Groove
NOTE: If you connect a vacuum cleaner to the dust
cup set, remove the dust cap before connecting it.
► Fig.29: 1. Dust cap
To remove the dust cup set, remove the bit while pulling
the chuck cover in the direction of the arrow.
► Fig.30: 1. Bit 2. Chuck cover
Hold the root of dust cup and pull it out.
► Fig.31
NOTE: If the cap comes o󰀨 from the dust cup, attach
it with its printed side facing up so that groove on the
cap ts in the inside periphery of the attachment.
► Fig.32
OPERATION
CAUTION: Always use the side grip (auxiliary
handle) and rmly hold the tool by both side grip
and switch handle during operations.
CAUTION: Always make sure that the work-
piece is secured before operation.
CAUTION: Do not pull the tool out forcibly
even the bit gets stuck. Loss of control may
cause injury.
CAUTION: The dust collection system is
intended for drilling in concrete only. Do not use
the dust collection system for drilling in metal or
wood.
CAUTION: When using the tool with the dust
collection system, be sure to attach the lter
to the dust collection system to prevent dust
inhalation.
CAUTION: Before using the dust collection
system, check that the lter is not damaged.
Failure to do so may cause dust inhalation.
CAUTION: The dust collection system col-
lects the generated dust at a considerable rate,
but not all dust can be collected.
NOTICE: Do not use the dust collection system
for core drilling or chiseling.
NOTICE: Do not use the dust collection system
for drilling in wet concrete or use this system
in wet environment. Failure to do so may cause
malfunction.
NOTE: If the battery cartridge is in low temperature,
the tool’s capability may not be fully obtained. In this
case, warm up the battery cartridge by using the
tool with no load for a while to fully obtain the tool’s
capability.
► Fig.33
Hammer drilling operation
CAUTION: There is tremendous and sudden
twisting force exerted on the tool/drill bit at the time of
hole break-through, when the hole becomes clogged
with chips and particles, or when striking reinforcing
rods embedded in the concrete. Always use the side
grip (auxiliary handle) and rmly hold the tool by
both side grip and switch handle during opera-
tions. Failure to do so may result in the loss of control
of the tool and potentially severe injury.
Set the action mode changing knob to the symbol.
Position the drill bit at the desired location for the hole,
then pull the switch trigger. Do not force the tool. Light
pressure gives best results. Keep the tool in position
and prevent it from slipping away from the hole.
Do not apply more pressure when the hole becomes
clogged with chips or particles. Instead, run the tool at
an idle, then remove the drill bit partially from the hole.
By repeating this several times, the hole will be cleaned
out and normal drilling may be resumed.
NOTE: Eccentricity in the drill bit rotation may occur
while operating the tool with no load. The tool auto-
matically centers itself during operation. This does not
a󰀨ect the drilling precision.
Chipping/Scaling/Demolition
Set the action mode changing knob to the symbol.
Hold the tool rmly with both hands. Turn the tool on
and apply slight pressure on the tool so that the tool will
not bounce around, uncontrolled.
Pressing very hard on the tool will not increase the
e󰀩ciency.
► Fig.34
Drilling in wood or metal
CAUTION: Hold the tool rmly and exert care
when the drill bit begins to break through the
workpiece. There is a tremendous force exerted on
the tool/drill bit at the time of hole break through.
CAUTION: A stuck drill bit can be removed
simply by setting the reversing switch to reverse
rotation in order to back out. However, the tool
may back out abruptly if you do not hold it rmly.
CAUTION: Always secure workpieces in a
vise or similar hold-down device.

20 ENGLISH
NOTICE: Never use “rotation with hammering”
when the drill chuck is installed on the tool. The
drill chuck may be damaged.
Also, the drill chuck will come o󰀨 when reversing the
tool.
NOTICE: Pressing excessively on the tool will
not speed up the drilling. In fact, this excessive
pressure will only serve to damage the tip of your drill
bit, decrease the tool performance and shorten the
service life of the tool.
Set the action mode changing knob to the symbol.
For HR001G/HR003G
Optional accessory
Attach the chuck adapter to a keyless drill chuck to
which 1/2"-20 size screw can be installed, and then
install them to the tool. When installing it, refer to the
section “Installing or removing drill bit”.
► Fig.35: 1. Keyless drill chuck 2. Chuck adapter
For HR002G/HR004G
Use the quick change drill chuck as standard equip-
ment. When installing it, refer to "changing the quick
change chuck for SDS-plus".
Hold the ring and turn the sleeve counterclockwise to
open the chuck jaws. Place the bit in the chuck as far as
it will go. Hold the ring rmly and turn the sleeve clock-
wise to tighten the chuck.
► Fig.36: 1. Sleeve 2. Ring
To remove the bit, hold the ring and turn the sleeve
counterclockwise.
Diamond core drilling
NOTICE: If performing diamond core drilling
operations using “rotation with hammering”
action, the diamond core bit may be damaged.
When performing diamond core drilling opera-
tions, always set the action mode changing knob to
the position to use "rotation only" action.
Beating dust on the lter
Optional accessory
CAUTION: Do not turn the dial on the dust
case while the dust case is removed from the
dust collection system. Doing so may cause dust
inhalation.
CAUTION: Always switch o󰀨 the tool when
turning the dial on the dust case. Turning the dial
while the tool is running may result in the loss of
control of the tool.
By beating the dust on the lter inside the dust case,
you can keep the vacuum e󰀩ciency and also reduce
the number of times to dispose of the dust.
Turn the dial on the dust case three times after col-
lecting every 50,000 mm3of dust or when you feel the
vacuum performance declined.
NOTE: 50,000 mm3of dust equivalents to drilling 10
holes of ø10 mm and 65 mm depth (14 holes of ø3/8″
and 2″ depth).
► Fig.37: 1. Dust case 2. Dial
Disposing of dust
Optional accessory
CAUTION: Always be sure that the tool is
switched o󰀨 and the battery cartridge is removed
before carrying out any work on the tool.
CAUTION: Be sure to wear dust mask when
disposing of dust.
CAUTION: Empty the dust case regularly
before the dust case becomes full. Failure to do so
may decrease the dust collection performance and
cause dust inhalation.
CAUTION: The performance of dust collection
decreases if the lter in the dust case become
clogged. Replace the lter with new one after
approximately 200 times of dust fulllment as a
guide. Failure to do so may cause dust inhalation.
1. Remove the dust case while pressing down the
lever of the dust case.
► Fig.38: 1. Lever
2. Open the cover of the dust case.
► Fig.39: 1. Cover
3. Dispose of the dust, and then clean the lter.
► Fig.40
NOTICE: When cleaning the lter, tap the case
of the lter gently by hand to remove dust. Do not
tap the lter directly; touch the lter with brush
or similar; or blow compressed air on the lter.
Doing so may damage the lter.
Blow-out bulb
Optional accessory
After drilling the hole, use the blow-out bulb to clean the
dust out of the hole.
► Fig.41
Using dust cup set
Optional accessory
Fit the dust cup set against the ceiling when operating
the tool.
► Fig.42
NOTICE: Do not use the dust cup set when drill-
ing in metal or similar. It may damage the dust
cup set due to the heat produced by small metal
dust or similar.
NOTICE: Do not install or remove the dust cup
set with the drill bit installed in the tool. It may
damage the dust cup set and cause dust leak.