Makita M8103 User manual

INSTRUCTION MANUAL
Hammer Drill
M8103
M8104
ENGLISH: Original instructions
DOUBLE INSULATION
Read before use.

2ENGLISH
SPECIFICATIONS
Model: M8103 M8104
Capacities Concrete 13 mm
Steel 13 mm
Wood 18 mm
No load speed 0 - 3,000 min-1
Blows per minute 0 - 33,000 min-1
Overall length 255 mm 258 mm
Net weight 1.8 kg 1.7 kg
Safety class /II
• Duetoourcontinuingprogramofresearchanddevelopment,thespecicationshereinaresubjecttochange
without notice.
• Specicationsmaydifferfromcountrytocountry.
• Weight 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.
DOUBLE INSULATION
Only for EU countries
Do not dispose of electric equipment
together with household waste material! In
observance of the European Directive, on
Waste Electric and Electronic Equipment
and its implementation in accordance with
national law, electric equipment 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 impact drilling in brick, concrete
and stone as well as for drilling without impact in wood,
metal, ceramic and plastic.
Power supply
The tool should be connected only to a power supply of
the same voltage as indicated on the nameplate, and
can only be operated on single-phase AC supply. They
are double-insulated and can, therefore, also be used
from sockets without earth wire.
Noise
The typical A-weighted noise level determined accord-
ing to EN60745:
Sound pressure level (LpA) : 90 dB(A)
Sound power level (LWA) : 101 dB (A)
Uncertainty (K) : 3 dB(A)
WARNING: Wear ear protection.
Vibration
The vibration total value (tri-axial vector sum) deter-
mined according to EN60745:
Work mode: impact drilling into concrete
Vibration emission (ah,ID) : 19.5 m/s2
Uncertainty (K) : 2.0 m/s2
Work mode: drilling into metal
Vibration emission (ah,D) : 3.5 m/s2
Uncertainty (K) : 1.5 m/s2
NOTE: The declared vibration emission value has
been measured in accordance with the standard test
method and may be used for comparing one tool with
another.
NOTE: The declared vibration emission value
may also be used in a preliminary assessment of
exposure.
WARNING: The vibration emission during actual
use of the power tool can differ from the declared
emission value depending on the ways in which the
tool is used.
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 (taking
account of all parts of the operating cycle such as
the times when the tool is switched off and when it is
running idle in addition to the trigger time).
EC Declaration of Conformity
For European countries only
Makita declares that the following Machine(s):
Designation of Machine: Hammer Drill
Model No./ Type: M8103, M8104
Conforms to the following European Directives:
2006/42/EC
They are manufactured in accordance with the following
standard or standardized documents: EN60745
Thetechnicalleinaccordancewith2006/42/ECis
available from:
Makita, Jan-Baptist Vinkstraat 2, 3070, Belgium
24.8.2015

3ENGLISH
Yasushi Fukaya
Director
Makita, Jan-Baptist Vinkstraat 2, 3070, Belgium
General power tool safety warnings
WARNING: Read all safety warnings and
all instructions. Failure to follow the warnings and
instructionsmayresultinelectricshock,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
1. 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.
2. 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.
3. Do not expose power tools to rain or wet con-
ditions. Water entering a power tool will increase
the risk of electric shock.
4. 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.
5.
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.
6. If operating a power tool in a damp location is unavoid-
able, use a residual current device (RCD) protected
supply. Use of an RCD reduces the risk of electric shock.
7. Use of power supply via an RCD with a rated
residual current of 30 mA or less is always
recommended.
Personal Safety
1. 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.
2. 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.
3. Prevent unintentional starting. Ensure the
switch is in the off-position before connecting
to power source and/or battery pack, picking
up or carrying the tool. Carrying power tools with
yourngerontheswitchorenergisingpowertools
that have the switch on invites accidents.
4. 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.
5. Do not overreach. Keep proper footing and
balance at all times. This enables better control
of the power tool in unexpected situations.
6. 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.
7. 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
1. 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.
2. Do not use the power tool if the switch does
not turn it on and off. Any power tool that cannot
be controlled with the switch is dangerous and
must be repaired.
3. 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.
4. 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.
5. Maintain power tools. Check for misalignment
or binding of moving parts, breakage of parts
and any other condition that may affect the
power tool’s operation. If damaged, have the
power tool repaired before use. Many accidents
are caused by poorly maintained power tools.
6. Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges
are less likely to bind and are easier to control.
7. 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 different from those intended could
result in a hazardous situation.

4ENGLISH
Service
1. 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.
2. Follow instruction for lubricating and chang-
ing accessories.
3. Keep handles dry, clean and free from oil and
grease.
HAMMER DRILL SAFETY
WARNINGS
1. Wear ear protectors when impact drilling.
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 or its own cord. Cutting accessory contacting
a "live" wire may make exposed metal parts of the
power tool "live" and could give the operator an
electric shock.
4. Always be sure you have a rm footing. Be
sure no one is below when using the tool in
high locations.
5. Hold the tool rmly with both hands.
6. Keep hands away from rotating parts.
7. Do not leave the tool running. Operate the tool
only when hand-held.
8. Do not touch the bit or the workpiece immedi-
ately after operation; they may be extremely
hot and could burn your skin.
9. 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 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.
FUNCTIONAL
DESCRIPTION
CAUTION: Always be sure that the tool is
switched off and unplugged before adjusting or
checking function on the tool.
Switch action
WARNING: Before plugging in the tool,
always check to see that the switch trigger actu-
ates properly and returns to the "OFF" position
when released.
1
2
Fig.1
►1. Switch trigger 2. Lock button
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.
For continuous operation, pull the switch trigger, push
in the lock button and then release the switch trigger.
To stop the tool from the locked position, pull the switch
trigger fully, then release it.
CAUTION: Switch can be locked in “ON” posi-
tion for ease of operator comfort during extended
use. Apply caution when locking tool in “ON”
position and maintain rm grasp on tool.
Reversing switch action
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.
1
A
B
Fig.2
►1. Reversing switch lever
This tool has a reversing switch to change the direc-
tion of rotation. Move the reversing switch lever to
the position (A side) for clockwise rotation or to the

5ENGLISH
position (B side) for counterclockwise rotation.
Selecting the action mode
CAUTION: Always slide the action mode
changing lever all the way to your desired mode
position. If you operate the tool with the lever posi-
tioned halfway between the mode symbols, the tool
may be damaged.
1
Fig.3
►1. Action mode changing lever
This tool has an action mode changing lever. For rota-
tion with hammering, slide the action mode changing
lever to the right ( symbol). For rotation only, slide the
action mode changing lever to the left ( symbol).
ASSEMBLY
Installing side grip (auxiliary handle)
CAUTION: Always be sure that the tool is
switched off and unplugged before installing or
removing the side grip.
1
2
34
56
Fig.4
►1. Grip base 2. Teeth 3. Side grip (auxiliary handle)
4. Protrusion 5. Loosen 6. Tighten
Always use the side grip to ensure operating safety.
Installthesidegripsothattheteethonthegriptin
between the protrusions on 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.
Installing or removing drill bit
CAUTION: Always be sure that the tool is
switched off and unplugged before installing or
removing the drill bit.
For model M8103
1
2
Fig.5
►1. Drill chuck 2. Chuck key
To install the drill bit, place it in the drill chuck as far as
it will go. Tighten the chuck by hand. Place the chuck
key in each of the three holes and tighten clockwise. Be
sure to tighten all three chuck holes evenly.
To remove the drill bit, turn the drill chuck key counter-
clockwiseinjustonehole,thenloosenthechuckby
hand.
After using the chuck key, be sure to return it to the
original position.
For Model M8104
1
2
Fig.6
►1. Sleeve 2. Ring
Hold the ring and turn the sleeve counterclockwise to
openthechuckjaws.Placethedrillbitinthedrillchuck
asfarasitwillgo.Holdtheringrmlyandturnthe
sleeve clockwise to tighten the chuck.
To remove the drill bit, hold the ring and turn the sleeve
counterclockwise.

6ENGLISH
Depth gauge
Optional accessory
1
2
3
4
Fig.7
►1. Side grip 2. Depth gauge 3. Grip base 4. Hex bolt
The depth gauge is convenient for drilling holes of
uniform depth. Install the depth gauge by the following
sequence.
1. Turn the side grip counterclockwise to loosen the
hex bolt.
2. Insertthedepthgaugeandadjustthedepthof
hole.
3. Turn the side grip clockwise so that the depth
gaugeandthegripbasearexedonthetool
completely.
NOTE: The depth gauge cannot be used at the posi-
tion where the depth gauge strikes against the tool
body.
OPERATION
CAUTION: Always use the side grip (auxiliary
handle) and rmly hold the tool by both side grip
and switch handle during operations.
Fig.8
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.
When drilling in concrete, granite, tile, etc., slide the
action mode changing lever to the position of symbol
to use "rotation with hammering" action. Be sure to use
a tungsten-carbide tipped drill bit. 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.
After drilling the hole, use the blow-out bulb to clean the
dust out of the hole.
Drilling operation
CAUTION: 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.
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 small workpieces
in a vise or similar hold-down device.
When drilling in wood, metal or plastic materials,
slide the action mode changing lever to the position
of symbol to use "rotation only" action.
Drilling in wood
When drilling in wood, the best results are obtained
with wood drills equipped with a guide screw. The guide
screw makes drilling easier by pulling the drill bit into
the workpiece.
Drilling in metal
To prevent the drill bit from slipping when starting a
hole, make an indentation with a center-punch and
hammer at the point to be drilled. Place the point of the
drill bit in the indentation and start drilling.
Use a cutting lubricant when drilling metals. The excep-
tions are iron and brass which should be drilled dry.

7ENGLISH
MAINTENANCE
CAUTION: Always be sure that the tool is
switched off and unplugged before attempting to
perform inspection or maintenance.
NOTICE: Never use gasoline, benzine, thinner,
alcohol or the like. Discoloration, deformation or
cracks may result.
To maintain product SAFETY and RELIABILITY, repairs,
carbon brush inspection and replacement, any other
maintenanceoradjustmentshouldbeperformedby
Makita Authorized or Factory Service Centers, always
using Makita replacement parts.

www.makita.com
Makita
Jan-Baptist Vinkstraat 2, 3070, Belgium
Makita Corporation Anjo, Aichi, Japan
885477-224
EN
20151023