Makita | 4112HS | Instruction manual | Makita 4112HS Instruction manual

ENGLISH (Original instructions)
Angle Cutter
IMPORTANT: Read Before Using.
ENGLISH (Original instructions)
Wheel diameter
305 mm
Max cutting capacity
355 mm
100 mm
No load speed (min-1)
125 mm
Overall length
648 mm
Net weight
11.4 kg
Safety class
675 mm
12.8 kg
• Due to our continuing program of research and development, the specifications herein are subject to change without notice.
• Specifications may differ from country to country.
• Weight according to EPTA-Procedure 01/2003
The typical A-weighted
according to EN60745:
The following show the symbols used for the equipment.
Be sure that you understand their meaning before use.
Read instruction manual.
Model 4112HS
Sound pressure level (LpA) : 101 dB(A)
Sound power level (LWA) : 112 dB(A)
Uncertainty (K) : 3 dB(A)
Wear safety glasses.
Model 4114S
Only for EU countries
Do not dispose of electric equipment
In observance of European Directive
2012/19/EU on waste electric and
implementation in accordance with
national law, electric equipment that
have reached the end of their life must
be collected separately and returned to
recycling facility.
Sound pressure level (LpA) : 103 dB(A)
Sound power level (LWA) : 114 dB(A)
Uncertainty (K) : 3 dB(A)
Wear ear protection
The vibration total value (tri-axial
determined according to EN60745:
Model 4112HS
Work mode : concrete cutting
Vibration emission (ah) : 2.5 m/s2
Uncertainty (K) : 1.5 m/s2
Intended use
The tool is intended for cutting tracks in concrete walls
or cutting in ferrous materials or concrete drainage
channels with a diamond wheel but without using water.
Model 4114S
Work mode : concrete cutting
Vibration emission (ah) : 3.0 m/s2
Uncertainty (K) : 1.5 m/s2
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.
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.
The declared vibration emission value may also be
used in a preliminary assessment of exposure.
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
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 times when the tool is switched off and when it
is running idle in addition to the trigger time).
Save all warnings and
instructions for future reference.
The term "power tool" in the warnings refers to your
mains-operated (corded) power tool or battery-operated
(cordless) power tool.
Work area safety
Keep work area clean and well lit. Cluttered or
dark areas invite accidents.
Do not operate power tools in explosive
atmospheres, such as in the presence of
flammable liquids, gases or dust. Power tools
create sparks which may ignite the dust or fumes.
Keep children and bystanders away while
operating a power tool. Distractions can cause
you to lose control.
Electrical safety
Power tool plugs must match the outlet. Never
modify the plug in any way. Do not use any
adapter plugs with earthed (grounded) power
tools. Unmodified plugs and matching outlets will
reduce risk of electric shock.
Avoid body contact with earthed or grounded
surfaces such as pipes, radiators, ranges and
refrigerators. There is an increased risk of
electric shock if your body is earthed or grounded.
Do not expose power tools to rain or wet
conditions. Water entering a power tool will
increase the risk of electric shock.
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.
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.
If operating a power tool in a damp location is
unavoidable, use a residual current device
(RCD) protected supply. Use of an RCD
reduces the risk of electric shock.
10. Use of power supply via a RCD with a rated
residual current of 30mA or less is always
Personal safety
11. Stay alert, watch what you are doing and use
common sense when operating a power tool. Do
not use a power tool while you are tired or under
the influence of drugs, alcohol or medication. A
moment of inattention while operating power tools
may result in serious personal injury.
12. Use personal protective equipment. Always
wear eye protection. Protective equipment such
For European countries only
EC Declaration of Conformity
We Makita Corporation as the responsible
manufacturer declare that the following Makita
Designation of Machine:
Angle Cutter
Model No./ Type: 4112HS, 4114S
are of series production and
Conforms to the following European Directives:
And are manufactured in accordance with the following
standards or standardised documents:
The technical documentation is kept by:
Makita International Europe Ltd.
Technical Department,
Michigan Drive, Tongwell,
Milton Keynes, Bucks MK15 8JD, England
Tomoyasu Kato
Makita Corporation
3-11-8, Sumiyoshi-cho,
Anjo, Aichi, 446-8502, JAPAN
General Power Tool Safety
WARNING Read all safety warnings and all
instructions. Failure to follow the warnings and
instructions may result in electric shock, fire and/or
serious injury.
Use the power tool, accessories and tool bits
etc. in accordance with these instructions,
taking into account the working conditions
and the work to be performed. Use of the
power tool for operations different from those
intended could result in a hazardous situation.
25. Have your power tool serviced by a qualified
replacement parts. This will ensure that the
safety of the power tool is maintained.
26. Follow instruction for lubricating and
changing accessories.
27. Keep handles dry, clean and free from oil and
as dust mask, non-skid safety shoes, hard hat, or
hearing protection used for appropriate conditions
will reduce personal injuries.
13. Prevent unintentional starting. Ensure the
switch is in the off-position before connecting
to power source and/or battery pack, picking
up or carrying the tool. Carrying power tools
with your finger on the switch or energising power
tools that have the switch on invites accidents.
14. 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.
15. Do not overreach. Keep proper footing and
balance at all times. This enables better control
of the power tool in unexpected situations.
16. Dress properly. Do not wear loose clothing or
jewellery. Keep your hair, clothing, and gloves
away from moving parts. Loose clothes,
jewellery or long hair can be caught in moving
17. 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 dustrelated hazards.
Power tool use and care
18. 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.
19. 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.
20. Disconnect the plug from the power source
and/or the battery pack from the power tool
before making any adjustments, changing
accessories, or storing power tools. Such
preventive safety measures reduce the risk of
starting the power tool accidentally.
21. Store idle power tools out of the reach of
children and do not allow persons unfamiliar
with the power tool or these instructions to
operate the power tool. Power tools are
dangerous in the hands of untrained users.
22. 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.
23. Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges
are less likely to bind and are easier to control.
Safety Warnings Common for Abrasive Cutting-Off
This power tool is intended to function as a
cut-off tool. Read all safety warnings,
instructions, illustrations and specifications
provided with this power tool. Failure to follow
all instructions listed below may result in electric
shock, fire and/or serious injury.
Operations such as grinding, wire brushing,
polishing are not recommended to be
performed with this power tool. Operations for
which the power tool was not designed may
create a hazard and cause personal injury.
Do not use accessories which are not
specifically designed and recommended by
the tool manufacturer. Just because the
accessory can be attached to your power tool, it
does not assure safe operation.
The rated speed of the accessory must be at
least equal to the maximum speed marked on
the power tool. Accessories running faster than
their rated speed can break and fly apart.
The outside diameter and the thickness of your
accessory must be within the capacity rating of
your power tool. Incorrectly sized accessories
cannot be adequately guarded or controlled.
The arbour size of wheels, flanges, backing
pads or any other accessory must properly fit
the spindle of the power tool. Accessories with
arbour holes that do not match the mounting
hardware of the power tool will run out of balance,
vibrate excessively and may cause loss of control.
Do not use a damaged accessory. Before each
use inspect the accessory such as abrasive
wheels for chips and cracks, backing pad for
Kickback and Related Warnings
Kickback is a sudden reaction to a pinched or snagged
rotating wheel, backing pad, brush or any other
accessory. Pinching or snagging causes rapid stalling of
the rotating accessory which in turn causes the
uncontrolled power tool to be forced in the direction
opposite of the accessory’s rotation at the point of the
For example, if an abrasive wheel is snagged or
pinched by the workpiece, the edge of the wheel that is
entering into the pinch point can dig into the surface of
the material causing the wheel to climb out or kick out.
The wheel may either jump toward or away from the
operator, depending on direction of the wheel’s
movement at the point of pinching. Abrasive wheels
may also break under these conditions.
Kickback is the result of power tool misuse and/or
incorrect operating procedures or conditions and can be
avoided by taking proper precautions as given below.
a) Maintain a firm grip on the power tool and
position your body and arm to allow you to
resist kickback forces. Always use auxiliary
handle, if provided, for maximum control over
kickback or torque reaction during start-up.
The operator can control torque reactions or
kickback forces, if proper precautions are taken.
b) Never place your hand near the rotating
accessory. Accessory may kickback over your
c) Do not position your body in the area where
power tool will move if kickback occurs.
Kickback will propel the tool in direction opposite
to the wheel’s movement at the point of snagging.
d) Use special care when working corners,
sharp edges etc. Avoid bouncing and snagging
the accessory. Corners, sharp edges or bouncing
have a tendency to snag the rotating accessory
and cause loss of control or kickback.
e) Do not attach a saw chain woodcarving
blade or toothed saw blade. Such blades create
frequent kickback and loss of control
Safety Warnings Specific for Abrasive Cutting-Off
a) Use only wheel types that are recommended
for your power tool and the specific guard
designed for the selected wheel. Wheels for
which the power tool was not designed cannot be
adequately guarded and are unsafe.
b) The 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
operator from broken wheel fragments and
accidental contact with wheel.
cracks, tear or excess wear, wire brush for
loose or cracked wires. If power tool or
accessory is dropped, inspect for damage or
install an undamaged accessory. After
inspecting and installing an accessory,
position yourself and bystanders away from
the plane of the rotating accessory and run
the power tool at maximum no-load speed for
one minute. Damaged accessories will normally
break apart during this test time.
Depending on application, use face shield,
safety goggles or safety glasses. As
appropriate, wear dust mask, hearing
protectors, gloves and workshop apron
capable of stopping small abrasive or
workpiece fragments. The eye protection must
be capable of stopping flying debris generated by
various operations . The dust mask or respirator
must be capable of filtrating particles generated
by your operation. Prolonged exposure to high
intensity noise may cause hearing loss.
Keep bystanders a safe distance away from
work area. Anyone entering the work area
must wear personal protective equipment.
Fragments of workpiece or of a broken accessory
may fly away and cause injury beyond immediate
area of operation.
Hold power tool by insulated gripping surfaces
only, when performing an operation where the
cutting accessory may contact hidden wiring or
its own cord. Cutting accessory contacting a "live"
wire may make exposed metal parts of the power
tool "live" and shock the operator.
Position the cord clear of the spinning
accessory. If you lose control, the cord may be
cut or snagged and your hand or arm may be
pulled into the spinning accessory.
Never lay the power tool down until the
accessory has come to a complete stop. The
spinning accessory may grab the surface and pull
the power tool out of your control.
Do not run the power tool while carrying it at
your side. Accidental contact with the spinning
accessory could snag your clothing, pulling the
accessory into your body.
Regularly clean the power tool’s air vents. The
motor’s fan will draw the dust inside the housing
and excessive accumulation of powdered metal
may cause electrical hazards.
Do not operate the power tool near flammable
materials. Sparks could ignite these materials.
Do not use accessories that require liquid
coolants. Using water or other liquid coolants
may result in electrocution or shock.
c) Wheels must be used only for recommended
applications. For example: do not grind with
the side of cut-off wheel. Abrasive cut-off wheels
are intended for peripheral grinding, side forces
applied to these wheels may cause them to shatter.
d) Always use undamaged wheel flanges that
are of correct size and shape for your selected
wheel. Proper wheel flanges support the wheel
thus reducing the possibility of wheel breakage.
Flanges for cut-off wheels may be different from
grinding wheel flanges.
e) Do not use worn down wheels from larger
power tools. Wheel intended for larger power tool
is not suitable for the higher speed of a smaller
tool and may burst.
Additional Safety Warnings Specific for Abrasive
Cutting-Off Operations:
a) Do not “jam” the cut-off wheel or apply
excessive pressure. Do not attempt to make an
excessive depth of cut. Overstressing the wheel
increases the loading and susceptibility to twisting
or binding of the wheel in the cut and the
possibility of kickback or wheel breakage.
b) Do not position your body in line with and
behind the rotating wheel. When the wheel, at
the point of operation, is moving away from your
body, the possible kickback may propel the
spinning wheel and the power tool directly at you.
c) When wheel is binding or when interrupting
a cut for any reason, switch off the power tool
and hold the power tool motionless until the
wheel comes to a complete stop. Never
attempt to remove the cut-off wheel from the
cut while the wheel is in motion otherwise
kickback may occur. Investigate and take
corrective action to eliminate the cause of wheel
d) Do not restart the cutting operation in the
workpiece. Let the wheel reach full speed and
carefully reenter the cut. The wheel may bind,
walk up or kickback if the power tool is restarted in
the workpiece.
e) Support panels or any oversized workpiece
to minimize the risk of wheel pinching and
kickback. Large workpieces tend to sag under
their own weight. Supports must be placed under
the workpiece near the line of cut and near the
edge of the workpiece on both sides of the wheel.
f) Use extra caution when making a “pocket
cut” into existing walls or other blind areas.
The protruding wheel may cut gas or water pipes,
electrical wiring or objects that can cause kickback.
Additional Safety Warnings:
17. Be careful not to damage the spindle, the
flange (especially the installing surface) or the
lock nut. Damage to these parts could result
in wheel breakage.
Make sure the wheel is not contacting the
workpiece before the switch is turned on.
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.
Watch out for flying sparks. Hold the tool so
that sparks fly away from you and other
persons or flammable materials.
Do not leave the tool running. Operate the tool
only when hand-held.
Do not touch the workpiece immediately after
operation; it may be extremely hot and could
burn your skin.
Always be sure that the tool is switched off
and unplugged or that the battery cartridge is
removed before carrying out any work on the
Observe the instructions of the manufacturer
for correct mounting and use of wheels.
Handle and store wheels with care.
Do not use separate reducing bushings or
adaptors to adapt large hole abrasive wheels.
Use only flanges specified for this tool.
Check that the workpiece is properly supported.
Pay attention that the wheel continues to
rotate after the tool is switched off.
If working place is extremely hot and humid,
or badly polluted by conductive dust, use a
short-circuit breaker (30 mA) to assure
operator safety.
Do not use the tool on any materials
containing asbestos.
Do not use water or grinding lubricant.
Ensure that ventilation openings are kept
clear when working in dusty conditions. If it
should become necessary to clear dust, first
disconnect the tool from the mains supply
( use non metallic objects ) and avoid
damaging internal parts.
Cutting discs must not be subjected to any
lateral pressure.
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
returns to the "OFF" position when released.
For tool with the lock-on switch
To start the tool, simply pull the switch trigger (A
direction). Release the switch trigger to stop.
For continuous operation, pull the switch trigger (A
direction) and then push in the lock lever (B direction).
To stop the tool from the locked position, pull the switch
trigger (A direction) fully, then release it.
For tool with the lock-off switch
To prevent the switch trigger from accidentally pulled, a
lock lever is provided.
To start the tool, push in the lock lever (B direction) and
then pull the switch trigger (A direction). Release the
switch trigger to stop.
For tool with the lock on and lock-off switch
To prevent the switch trigger from accidentally pulled, a
lock lever is provided.
To start the tool, push in the lock lever (B direction) and
then pull the switch trigger. (A direction) Release the
switch trigger to stop.
For continuous operation, push in the lock lever, (B
direction) pull the switch trigger (A direction) and then
push the lock lever (B direction) further in.
To stop the tool from the locked position, pull the switch
trigger (A direction) fully, then release it.
Always be sure that the tool is switched off and
unplugged before adjusting or checking function
on the tool.
Adjusting the depth of cut
1. Wing bolt
2. Base
3. Cutting depth
Loosen the wing bolt on the depth guide and move the
base up or down. At the desired depth of cut, secure the
base by tightening the wing bolt.
Securing wheel guard
1. Clamping nut
2. Wheel guard
Always be sure that the tool is switched off and
unplugged before carrying out any work on the
Installing or removing the wheel
The wheel guard must be adjusted on the tool so
that the closed side of the guard always points
toward the operator.
The wheel guard can be adjusted about 80 degrees,
after you loosen the clamping nut. Adjust to the desired
angle, then secure the clamping nut.
To remove the wheel, depress the shaft lock to hold the
shaft stationary, then loosen the hex bolt clockwise with
the socket wrench.
To install a wheel, place flange with its partly elevated
side facing the tool, and then place ring before installing
a wheel onto the spindle (shaft) and another flange with
partly elevated side facing outward.
Be sure to fully tighten the hex bolt counterclockwise
after mounting the new wheel, or operation will be
Switch action
1. Switch trigger
2. Lock lever
1. Shaft lock
2. Socket wrench
Before plugging in the tool, always check to see
that the switch trigger actuates properly and
1. Flange
2. Ring
3. Wheel
4. Flange
5. Hex bolt
Always be sure that the tool is switched off and
unplugged before attempting to perform inspection
or maintenance.
Never use gasoline, benzine, thinner, alcohol or
the like. Discoloration, deformation or cracks may
If the cutting action of the diamond wheel begins to
diminish, use an old discarded coarse grit bench grinder
wheel or concrete block to dress the diamond wheel. To
do this, tightly secure the bench grinder wheel or
concrete block and cut in it.
Use only the Makita wrench to install or remove
the wheel.
Replacing carbon brushes
Be sure to pull the tool when cutting a workpiece.
Use this tool for straight line cutting only. Cutting
curves can cause stress cracks or fragmentation
of the diamond wheel and abrasive cut-off wheel
resulting in possible injury to persons in the vicinity.
After operation, always switch off the tool and wait
until the wheel has come to a complete stop
before putting the tool down.
When cutting concrete blocks, tiles or masonry
materials, do not make a cut in depth more than
60 mm. When you need to cut a workpiece over
60 mm up to 100 mm, make more than two
passes of cuts. The depth of the most efficient cut
is about 40 mm.
Hold the tool firmly with both hands. First keep the
wheel without making any contact with a workpiece to
be cut. Then turn the tool on and wait until the wheel
attains full speed.
1. Commutator
2. Insulating tip
3. Carbon brush
When the resin insulating tip inside the carbon brush is
exposed to contact the commutator, it will automatically
shut off the motor. When this occurs, both carbon
brushes should be replaced. Keep the carbon brushes
clean and free to slip in the holders. Both carbon
brushes should be replaced at the same time. Use only
identical carbon brushes.
Pick up an end of the dust cover slightly with hands so
that brush holder cap appears.
Use a screwdriver to remove the brush holder caps.
Take out the worn carbon brushes, insert the new ones
and secure the brush holder caps.
1. Notch
2. Cutting line
1. Dust cover
2. Screwdriver
3. Brush holder
The cut is made by pulling the tool toward you (not by
pushing away from you). Align the notch on the base
with your cutting line when performing a cut.
Switch off the tool in the position posed when finishing a
cut. Raise the tool after the wheel comes to a complete
To maintain product SAFETY and RELIABILITY, repairs,
any other maintenance or adjustment should be
performed by Makita Authorized Service Centers,
always using Makita replacement parts.
recommended for use with your Makita tool
specified in this manual. The use of any other
accessories or attachments might present a risk of
injury to persons. Only use accessory or
attachment for its stated purpose.
If you need any assistance for more details regarding
these accessories, ask your local Makita Service Center.
Diamond wheels (Dry type)
Abrasive cut-off wheels
Socket wrench 17
Safety goggle
Ring 20
Elbow joint
Connecting to vacuum cleaner
1. Dust nozzle
2. Elbow joint
3. Hose
When you wish to perform cleaner operation, connect a
vacuum cleaner to your tool. Connect a hose of vacuum
cleaner to the dust nozzle via an elbow joint (accessory).
Some items in the list may be included in the tool
package as standard accessories. They may differ
from country to country.
Makita Corporation
Anjo, Aichi, Japan
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