Makita 4105KB User manual

INSTRUCTION MANUAL
WARNING:
For your personal safety, READ and UNDERSTAND before using.
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.
ENGLISH
Dustless Cutter
MODEL 4105KB
005153
DOUBLE
INSULATION

2
SPECIFICATIONS
• Due to our continuing programme of research and development, the specifications herein are subject to change
without notice.
• Note: Specifications may differ from country to country.
SYMBOLS END201-2
The following show the symbols used for the tool. 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 mate-
rial!
In observance of European Directive
2002/96/EC on waste electric and
electronic equipment and its imple-
mentation in accordance with
national law, electric equipment that
have reached the end of their life
must be collected separately and
returned to an environmentally com-
patible recycling facility.
Intended use
The tool is intended for cutting in brick and concrete
without the use of water.
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 in accordance with European
Standard and can, therefore, also be used from sockets
without earth wire.
For European countries only
Noise and Vibration
The typical A-weighted noise levels are
sound pressure level: 98 dB (A)
sound power level: 111 dB (A)
– Wear ear protection. –
The typical weighted root mean square acceleration
value is 4 m/s2.
EC-DECLARATION OF CONFORMITY
We declare under our sole responsibility that this prod-
uct is in compliance with the following standards of
standardized documents, HD400, EN50144, EN55014,
EN61000 in accordance with Council Directives, 73/23/
EEC, 89/336/EEC, 98/37/EC.
Yasuhiko Kanzaki CE 2003
Director
MAKITA INTERNATIONAL EUROPE LTD.
Michigan Drive, Tongwell, Milton Keynes, Bucks MK15
8JD, ENGLAND
Model 4105KB
Wheel diameter 125 mm
Max. cutting capacity 40 mm
No load speed (min-1)7,500
Overall length 230 mm
Net weight 3.2 kg
Safety class /II

3
SAFETY INSTRUCTIONS ENA001-2
WARNING:
When using electric tools, basic safety precautions, including the following,
should always be followed to reduce the risk of fire, electric shock and
personal injury. Read all these instructions before operating this product
and save these instructions.
For safe operations:
1. Keep work area clean.
Cluttered areas and benches invite injuries.
2. Consider work area environment.
Do not expose power tools to rain. Do not use
power tools in damp or wet locations. Keep work
area well lit. Do not use power tools where there is
risk to cause fire or explosion.
3. Guard against electric shock.
Avoid body contact with earthed or grounded sur-
faces (e.g. pipes, radiators, ranges, refrigerators).
4. Keep children away.
Do not let visitors touch the tool or extension cord.
All visitors should be kept away from work area.
5. Store idle tools.
When not in use, tools should be stored in a dry,
high or locked up place, out of reach of children.
6. Do not force the tool.
It will do the job better and safer at the rate for which
it was intended.
7. Use the right tool.
Do not force small tools or attachments to do the job
of a heavy duty tool. Do not use tools for purposes
not intended; for example, do not use circular saws
to cut tree limbs or logs.
8. Dress properly.
Do not wear loose clothing or jewellery, they can be
caught in moving parts. Rubber gloves and non-skid
footwear are recommended when working outdoors.
Wear protecting hair covering to contain long hair.
9. Use safety glasses and hearing protection.
Also use face or dust mask if the cutting operation is
dusty.
10. Connect dust extraction equipment.
If devices are provided for the connection of dust
extraction and collection facilities ensure these are
connected and properly used.
11. Do not abuse the cord.
Never carry the tool by the cord or yank it to discon-
nect it from the socket. Keep the cord away from
heat, oil and sharp edges.
12. Secure work.
Use clamps or a vice to hold the work. It is safer
than using your hand and it frees both hands to
operate the tool.
13. Do not overreach.
Keep proper footing and balance at all times.
14. Maintain tools with care.
Keep cutting tools sharp and clean for better and
safer performance. Follow instructions for lubrica-
tion and changing accessories. Inspect tool cord
periodically and if damaged have it repaired by an
authorized service facility. Inspect extension cords
periodically and replace, if damaged. Keep handles
dry, clean and free from oil and grease.
15. Disconnect tools.
When not in use, before servicing and when chang-
ing accessories such as blades, bits and cutters.
16. Remove adjusting keys and wrenches.
Form the habit of checking to see that keys and
adjusting wrenches are removed from the tool
before turning it on.
17. Avoid unintentional starting.
Do not carry a plugged-in tool with a finger on the
switch. Ensure switch is off when plugging in.
18. Use outdoor extension leads.
When tool is used outdoors, use only extension
cords intended for outdoor use.
19. Stay alert.
Watch what you are doing. Use common sense. Do
not operate tool when you are tired.
20. Check damaged parts.
Before further use of the tool, a guard or other part
that is damaged should be carefully checked to
determine that it will operate properly and perform
its intended function. Check for alignment of moving
parts, free running of moving parts, breakage of
parts, mounting and any other conditions that may
affect its operation. A guard or other part that is
damaged should be properly repaired or replaced
by an authorized service center unless otherwise
indicated in this instruction manual. Have defective
switches replaced by an authorized service facility.
Do not use the tool if the switch does not turn it on
and off.
21. Warning.
The use of any accessory or attachment, other than
those recommended in this instruction manual or
the catalog, may present a risk of personal injury.
22. Have your tool repaired by a qualified person.
This electric tool is in accordance with the relevant
safety requirements. Repairs should only be carried
out by qualified persons using original spare parts,
otherwise this may result in considerable danger to
the user.

4
ADDITIONAL SAFETY RULES ENB051-2
1. Check the wheel carefully for cracks or damage
before operation. Replace cracked or damaged
wheel immediately.
2. Use only flanges specified for this tool.
3. Be careful not to damage the spindle, flanges
(especially the installing surface) or bolt. Dam-
age to these parts could result in wheel break-
age.
4. Hold the tool firmly.
5. Keep hands away from rotating parts.
6. Make sure the wheel is not contacting the work-
piece before the switch is turned on.
7. Wait until the wheel attains full speed before
cutting.
8. Stop operation immediately if you notice any-
thing abnormal.
9. Never attempt to cut with the tool held upside
down in a vise. This can lead to serious acci-
dents, because it is extremely dangerous.(Fig. 1)
10. Before setting the tool down after completing a
cut, be sure that the wheel has come to a com-
plete stop.
11. Do not stop the wheel by lateral pressure on the
disc.
12. The tool must be used only for dry cutting. Do
not use water.
SAVE THESE INSTRUCTIONS

5
FUNCTIONAL
DESCRIPTION CAUTION:
•Always be sure that the tool is switched off and unplugged before
adjusting or checking function on the tool.
Adjusting the depth of cut
Loosen the wing nut on the depth guide and move the base up or down. At the
desired depth of cut, secure the base by tightening the wing nut.
CAUTION:
•After adjusting the depth of cut, always tighten the wing nut securely.
Sighting
Align the notch in the front of the base with your cutting line on the workpiece.
Switch action
CAUTION:
•Before plugging in 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. Release the switch trigger to
stop.
Overload protector
The overload protector automatically cuts out to break the circuit and the but-
ton pops out, whenever heavy work is prolonged. Wait 20 - 30 seconds before
pressing the restart button to resume operation. Your finger should not be on
the switch trigger when you press the restart button, however.
1. Wing nut
2. Base
1
2
005157
1. Notch
1
005159
1. Switch trigger
1
005160
1. Restart button
1
005161

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ASSEMBLY CAUTION:
•Always be sure that the tool is switched off and unplugged before
carrying out any work on the tool.
Installing or removing diamond wheel
Remove the blade cover.
Hold the outer flange with the wrench and loosen the hex socket head bolt
clockwise with the hex wrench. Then remove the hex socket head bolt, outer
flange and diamond wheel.
To install the wheel, follow the removal procedure in reverse. Always install the
wheel so that the arrow on the wheel points in the same direction as the arrow
on the blade case.
BE SURE TO TIGHTEN THE HEX BOLT SECURELY.
CAUTION:
•Use only the Makita wrench to install or remove the wheel.
1. Blade cover
1
005154
1. Diamond wheel
2. Hex wrench
3. Outer flange
4. Wrench
1
2
3
4
005155
1. Inner flange
2. Diamond wheel
3. Outer flange
4. Hex bolt
1
2
3
4
005156

7
Dust bag
The use of the dust bag makes cutting operations clean and dust collection
easy. To attach the dust bag, fit it onto the dust spout. When the dust bag is
about one-third full, remove the dust bag from the tool and pull the fastener
out. Empty the dust bag of its contents, tapping it lightly so as to remove parti-
cles adhering to the insides which might hamper collection.
OPERATION
Hold the tool firmly. Set the base plate on the workpiece to be cut without the
wheel making any contact. Then turn the tool on and wait until the wheel
attains full speed. Move the tool forward over the workpiece surface, keeping it
flat and advancing smoothly until the cutting is completed. Keep your cutting
line straight and your speed of advance uniform.
CAUTION:
•Be sure to move the tool forward in a straight line and gently. Forcing and
exerting excessive pressure or allowing the wheel to bend, pinch or twist
in the cut can cause overheating of the motor and dangerous kickback of
the tool.
MAINTENANCE CAUTION:
•Always be sure that the tool is switched off and unplugged before
attempting to perform inspection or maintenance.
Dressing diamond wheel
If the cutting action of the diamond wheel begins to diminish, use an old dis-
carded 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.
After use
Blow away dust from the inside of the tool by running the tool at an idle for a
while. Brush off accumulation of dust on the base. Accumulation of dust in the
motor or on the base may cause a malfunction of the tool.
Replacing carbon brushes
Remove and check the carbon brushes regularly. Replace when they wear
down to the limit mark. 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.
1. Dust spout
1
005158
005162
1. Limit mark
1
001145

8
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.
To maintain product SAFETY and RELIABILITY, repairs, any other mainte-
nance or adjustment should be performed by Makita Authorized Service Cent-
ers, always using Makita replacement parts.
ACCESSORIES
CAUTION:
•These accessories or attachments are 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.
1. Screwdriver
2. Brush holder cap
1
2
005163
•Diamond wheels (Dry type)
•Hex wrench 5
•Wrench 22
•Rip fence (Guide rule)
•Safety goggles

Memo
9

Memo
10

Memo
11

Makita Corporation Anjo, Aichi, Japan
883307B223