Makita DHR242 User manual

DHR242
DHR243
EN Cordless Combination
Hammer INSTRUCTION MANUAL 6
ZHCN 充电式电锤 使用说明书 13
ID Bor Getar Kombinasi Tanpa
Kabel PETUNJUK PENGGUNAAN 20
MS Tukul Kombinasi Tanpa Kord MANUAL ARAHAN 28
VI Máy Khoan Đa Năng Cầm Tay
Hoạt Động Bằng Pin TÀI LIỆU HƯỚNG DẪN 35
TH   42

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6ENGLISH
ENGLISH (Original instructions)
SPECIFICATIONS
Model DHR242 DHR243
Capacities Concrete 24 mm
Steel 13 mm
Wood 27 mm
No load speed (min-1)0 - 950
Blows per minute 0 - 4,700
Overall length 328 mm 353 mm
Net weight 3.3 kg 3.4 kg
Rated voltage D.C. 18 V
• Due to our continuing program of research and development, the specications herein are subject to change with-
out notice.
• Specications and battery cartridge may di󰀨er from country to country.
• Weight, with battery cartridge, according to EPTA-Procedure 01/2003
Symbols
The following show the symbols used for the equip-
ment. Be sure that you understand their meaning before
use.
Read instruction manual.
Ni-MH
Li-ion
Only for EU countries
Do not dispose of electric equipment or
battery pack together with household waste
material!
In observance of European Directive
2002/96/EC on waste electric and elec-
tronic equipment, 2006/66/EC on batteries
and accumulators and waste batteries and
accumulators and their implementation
in accordance with national laws, electric
equipment and battery pack that have
reached the end of their life must be col-
lected separately and returned to an envi-
ronmentally compatible recycling facility.
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.
General Power Tool Safety Warnings
WARNING Read all safety warnings and all
instructions. Failure to follow the warnings and instruc-
tions 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.
Work area safety
1. Keep work area clean and well lit. Cluttered or
dark areas invite accidents.
2. Do not operate power tools in explosive atmo-
spheres, such as in the presence of ammable
liquids, gases or dust. Power tools create sparks
which may ignite the dust or fumes.
3. Keep children and bystanders away while
operating a power tool. Distractions can cause
you to lose control.
Electrical safety
4. 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. Unmodied plugs and matching outlets will
reduce risk of electric shock.
5. Avoid body contact with earthed or grounded
surfaces such as pipes, radiators, ranges and
refrigerators. There is an increased risk of elec-
tric shock if your body is earthed or grounded.
6. Do not expose power tools to rain or wet con-
ditions. Water entering a power tool will increase
the risk of electric shock.
7. 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.
8. 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.
9. If operating a power tool in a damp location is
unavoidable, use a ground fault circuit inter-
rupter (GFCI) protected supply. Use of an GFCI
reduces the risk of electric shock.
Personal safety
10. 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 inuence of drugs, alcohol or med-
ication. A moment of inattention while operating
power tools may result in serious personal injury.

7ENGLISH
11. 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.
12. Prevent unintentional starting. Ensure the
switch is in the o󰀨-position before connecting
to power source and/or battery pack, picking
up or carrying the tool. Carrying power tools with
your nger on the switch or energising power tools
that have the switch on invites accidents.
13. 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.
14. Do not overreach. Keep proper footing and
balance at all times. This enables better control
of the power tool in unexpected situations.
15. Dress properly. Do not wear loose clothing or
jewellery. Keep your hair, clothing, and gloves
away from moving parts. Loose clothes, jewel-
lery or long hair can be caught in moving parts.
16. If devices are provided for the connection of
dust extraction and collection facilities, ensure
these are connected and properly used. Use of
dust collection can reduce dust-related hazards.
Power tool use and care
17. 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.
18. Do not use the power tool if the switch does
not turn it on and o󰀨. Any power tool that cannot
be controlled with the switch is dangerous and
must be repaired.
19. 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 pre-
ventive safety measures reduce the risk of starting
the power tool accidentally.
20. Store idle power tools out of the reach of chil-
dren 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.
21. Maintain power tools. Check for misalignment
or binding of moving parts, breakage of parts
and any other condition that may a󰀨ect the
power tool’s operation. If damaged, have the
power tool repaired before use. Many accidents
are caused by poorly maintained power tools.
22. Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges
are less likely to bind and are easier to control.
23. Use the power tool, accessories and tool bits
etc. in accordance with these instructions, tak-
ing into account the working conditions and
the work to be performed. Use of the power tool
for operations di󰀨erent from those intended could
result in a hazardous situation.
Battery tool use and care
24. Recharge only with the charger specied by
the manufacturer. A charger that is suitable for
one type of battery pack may create a risk of re
when used with another battery pack.
25. Use power tools only with specically desig-
nated battery packs. Use of any other battery
packs may create a risk of injury and re.
26. 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 termi-
nals together may cause burns or a re.
27. Under abusive conditions, liquid may be
ejected from the battery; avoid contact. If con-
tact accidentally occurs, ush with water. If
liquid contacts eyes, additionally seek medical
help. Liquid ejected from the battery may cause
irritation or burns.
Service
28. Have your power tool serviced by a qualied
repair person using only identical replacement
parts. This will ensure that the safety of the power
tool is maintained.
29. Follow instruction for lubricating and chang-
ing accessories.
30. Keep handles dry, clean and free from oil and
grease.
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 wir-
ing. 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.

8ENGLISH
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 or parts close to the bit
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.
SAVE THESE INSTRUCTIONS.
WARNING: DO NOT let comfort or famil-
iarity 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 battery cartridge.
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. Be careful not to drop or strike battery.
9. Do not use a damaged battery.
SAVE THESE INSTRUCTIONS.
Tips for maintaining maximum
battery life
1. Charge the battery cartridge before completely
discharged.
Always stop tool operation and charge the bat-
tery 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. Charge the battery cartridge once in every six
months if you do not use it for a long period of
time.
FUNCTIONAL
DESCRIPTION
CAUTION:
• Always be sure that the tool is switched o󰀨 and
the battery cartridge is removed before adjust-
ing or checking function on the tool.
Installing or removing battery
cartridge
CAUTION:
• Hold the tool and the battery cartridge rmly
when installing or removing battery car-
tridge. 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
• Always switch o󰀨 the tool before installing or
removing of the 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. Always 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. Install it 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.
• Do not use force when installing the battery car-
tridge. If the cartridge does not slide in easily, it is
not being inserted correctly.

9ENGLISH
Battery protection system (Lithium-
ion battery with star marking)
► Fig.2: 1. Star marking
Lithium-ion batteries with a star marking are equipped
with a protection system. This system automatically
cuts o󰀨 power to the tool to extend battery life.
The tool will automatically stop during operation if the
tool and/or battery are placed under one of the following
conditions:
• Overloaded:
The tool is operated in a manner that causes
it to draw an abnormally high current.
In this situation, release the trigger switch on
the tool and stop the application that caused
the tool to become overloaded. Then pull the
trigger switch again to restart.
If the tool does not start, the battery is over-
heated. In this situation, let the battery cool
before pulling the trigger switch again.
• Low battery voltage:
The remaining battery capacity is too low
and the tool will not operate. In this situation,
remove and recharge the battery.
Switch action
► Fig.3: 1. Switch trigger
CAUTION:
• Before inserting the battery cartridge into the
tool, always check to see that the switch trigger
actuates properly and returns to the “OFF”
position when released.
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.
Reversing switch action
► Fig.4: 1. Reversing switch lever
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.
CAUTION:
• Always check the direction of rotation before
operation.
• Use the reversing switch only after the tool
comes to a complete stop. Changing the direc-
tion of rotation before the tool stops may dam-
age the tool.
• When not operating the tool, always set the
reversing switch lever to the neutral position.
Changing the quick change chuck
for SDS-plus
For model DHR243
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
► Fig.5: 1. Quick change chuck for SDS-plus
2. Change cover line 3. Change cover
CAUTION:
• Before removing the quick change chuck for
SDS-plus, always 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.
Attaching the quick change drill
chuck
► Fig.6: 1. Spindle 2. Quick change drill chuck
3. Change cover 4. Change cover line
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.
Selecting the action mode
Rotation with hammering
► Fig.7: 1. Rotation with hammering 2. Lock button
3. Action mode changing knob
For drilling in concrete, masonry, etc., depress the lock
button and rotate the action mode changing knob to
the symbol. Use a tungsten-carbide tipped bit.
Rotation only
► Fig.8: 1. Rotation only
For drilling in wood, metal or plastic materials, depress
the lock button and rotate the action mode changing
knob to the symbol. Use a twist drill bit or wood bit.
Hammering only
► Fig.9: 1. Hammering only
For chipping, scaling or demolition operations, depress
the lock button and rotate the action mode changing
knob to the symbol. Use a bull point, cold chisel,
scaling chisel, etc.

10 ENGLISH
Notice on the action mode changing
knob operation
To avoid the damage to the mechanism of the action
mode changing knob, follow the procedures below:
• Do not rotate the action mode changing knob
when the tool is running.
• Make sure that the action mode changing knob is
always positively located in one of the three action
mode positions ( , , or ).
► Fig.10
• Do not turn the knob forcibly. Forcing the knob
may cause tool damage.
When turning the action mode changing knob from
the symbol to the symbol or vise versa, the
knob may no longer move in the symbol posi-
tion. In this case, move the knob to the symbol
position and run the tool few seconds. After that,
move the knob to the desired position.
► Fig.11
Torque limiter
The torque limiter will actuate when a certain torque
level is reached. The motor will disengage from the out-
put shaft. When this happens, the bit will stop turning.
CAUTION:
• As soon as the torque limiter actuates, switch
o󰀨 the tool immediately. This will help prevent
premature wear of the tool.
• Hole saws cannot be used with this tool. They
tend to pinch or catch easily in the hole. This
will cause the torque limiter to actuate too
frequently.
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)
► Fig.12: 1. Protrusion 2. Groove 3. Loosen
4. Tighten 5. Side grip
CAUTION:
• Always use the side grip to ensure operating
safety.
Install the side grip so that the protrusion on the grip t
in between the grooves in the tool barrel. Then tighten
the grip by turning clockwise at the desired position. It
may be swung 360° so as to be secured at any position.
Bit grease
Coat the bit shank head beforehand with a small
amount of bit grease (about 0.5 -1 g). This chuck lubri-
cation assures smooth action and longer service life.
Installing or removing the bit
Clean the bit shank and apply bit grease before install-
ing the bit.
► Fig.13: 1. Bit shank 2. Bit grease
Insert the bit into the tool. Turn the bit and push it in until
it engages.
► Fig.14: 1. Bit 2. Chuck cover
If the bit cannot be pushed in, remove the bit. Pull the
chuck cover down a couple of times. Then insert the bit
again. Turn the bit and push it in until it engages.
After installing, always make sure that the bit is securely
held in place by trying to pull it out.
To remove the bit, pull the chuck cover down all the way
and pull the bit out.
► Fig.15: 1. Bit 2. Chuck cover
Bit angle (when chipping, scaling or
demolishing)
► Fig.16: 1. Action mode changing knob 2. O symbol
The bit can be secured at the desired angle. To change
the bit angle, depress the lock button and rotate the
action mode changing knob to the O symbol. Turn the
bit to the desired angle.
Depress the lock button and rotate the action mode
changing knob to the symbol. Then make sure that
the bit is securely held in place by turning it slightly.
► Fig.17
Depth gauge
► Fig.18: 1. Hole 2. Depth gauge 3. Loosen 4. Tighten
The depth gauge is convenient for drilling holes of
uniform depth. Loosen the side grip and insert the depth
gauge into the hole in the side grip. Adjust the depth
gauge to the desired depth and tighten the side grip.
NOTE:
• The depth gauge cannot be used at the position
where the depth gauge strikes against the gear
housing.
Dust cup
► Fig.19: 1. Dust cup
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.
Bit diameter
Dust cup 5 6 mm - 14.5 mm
Dust cup 9 12 mm - 16 mm