Makita BO4901 User manual

1
ENGLISH
INSTRUCTION MANUAL
DOUBLE INSULATION
WARNING:
For your personal safety, READ and UNDERSTAND before using.
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.
Finishing Sander
BO4900V
BO4900
BO4901
001680

2
ENGLISH
SPECIFICATIONS
Model BO4900V BO4900 BO4901
Pad size 115 mm x 229 mm 115 mm x 229 mm 115 mm x 229 mm
Abrasive paper size 115 mm x 280 mm 115 mm x 280 mm 115 mm x 280 mm
Orbits per minute (min-1) 4,000 - 10,000 10,000 10,000
Sanding stroke rate (min-1) 8,000 - 20,000 20,000 20,000
Overall length 289 mm 289 mm 289 mm
Net weight 2.8 kg 2.8 kg 2.8 kg
Safety class /II
• 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.
END201-2
Symbols
The following show the symbols used for the equipment.
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 European Directive
2002/96/EC 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 collected separately and returned to
an environmentally compatible
recycling facility.
ENE052-1
Intended use
The tool is intended for the sanding of large surface of
wood, plastic and metal materials as well as painted
surfaces.
ENF002-1
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.
ENG004-2
For European countries only
Noise and Vibration
The typical A-weighted sound pressure level is 71 dB (A).
Uncertainty is 3 dB(A).
The noise level under working may exceed 85 dB (A).
Wear ear protection.
The typical weighted root mean square acceleration
value is 5 m/s2.
These values have been obtained according to
EN60745.
ENH101-5
EC-DECLARATION OF CONFORMITY
We declare under our sole responsibility that this
product is in compliance with the following standards of
standardized documents;
EN60745, EN55014, EN61000 in accordance with
Council Directives, 89/336/EEC, 98/37/EC.
Yasuhiko Kanzaki CE2005
000087
Director
MAKITA INTERNATIONAL EUROPE LTD.
Michigan Drive, Tongwell, Milton Keynes, Bucks MK15
8JD, ENGLAND
Responsible manufacturer:
Makita Corporation Anjo Aichi Japan
GEA001-3
GENERAL SAFETY RULES
WARNING! Read all instructions. Failure to follow all
instructions listed below may result in electric shock, fire
and/or serious injury. The term "power tool" in all of the
warnings listed below refers to your mains-operated
(corded) power tool or battery-operated (cordless) power
tool.
SAVE THESE INSTRUCTIONS.
Work area safety
1. Keep work area clean and well lit. Cluttered and
dark areas invite accidents.
2. 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.
3. Keep children and bystanders away while

3
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. Unmodified 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
electric shock if your body is earthed or grounded.
6. Do not expose power tools to rain or wet
conditions. 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.
Personal Safety
9. 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.
10. Use safety equipment. Always wear eye
protection. Safety equipment such as dust mask,
non-skid safety shoes, hard hat, or hearing
protection used for appropriate conditions will
reduce personal injuries.
11. Avoid accidental starting. Ensure the switch is
in the off-position before plugging in. Carrying
power tools with your finger on the switch or
plugging in power tools that have the switch on
invites accidents.
12. 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.
13. Do not overreach. Keep proper footing and
balance at all times. This enables better control
of the power tool in unexpected situations.
14. 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
parts.
15. If devices are provided for the connection of
dust extraction and collection facilities,
ensure these are connected and properly used.
Use of these devices can reduce dust-related
hazards.
Power tool use and care
16. 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.
17. 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.
18. 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.
19. 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.
20. Maintain power tools. Check for misalignment
or binding of moving parts, breakage of parts
and any other condition that may affect the
power tools operation. If damaged, have the
power tool repaired before use. Many accidents
are caused by poorly maintained power tools.
21. Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges
are less likely to bind and are easier to control.
22. Use the power tool, accessories and tool bits
etc. in accordance with these instructions and
in the manner intended for the particular type
of power tool, 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.
SERVICE
23. Have your power tool serviced by a qualified
repair person using only identical replacement
parts. This will ensure that the safety of the power
tool is maintained.
24. Follow instruction for lubricating and
changing accessories.
25. Keep handles dry, clean and free from oil and
grease.

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GEB021-1
SPECIFIC SAFETY RULES
DO NOT let comfort or familiarity with product
(gained from repeated use) replace strict adherence
to sander safety rules. If you use this tool unsafely
or incorrectly, you can suffer serious personal
injury.
1. Hold power tools by insulated gripping
surfaces when performing an operation where
the cutting tool may contact hidden wiring or
its own cord. Contact with a "live" wire will make
exposed metal parts of the tool "live" and shock
the operator.
2. Always use safety glasses or goggles.
Ordinary eye or sun glasses are NOT safety
glasses.
3. Hold the tool firmly.
4. Do not leave the tool running. Operate the tool
only when hand-held.
5. This tool has not been waterproofed, so do not
use water on the workpiece surface.
6. Ventilate your work area adequately when you
perform sanding operations.
7. Some material contains chemicals which may
be toxic. Take caution to prevent dust
inhalation and skin contact. Follow material
supplier safety data.
8. Use of this tool to sand some products, paints
and wood could expose user to dust
containing hazardous substances. Use
appropriate respiratory protection.
9. Be sure that there are no cracks or breakage
on the pad before use. Cracks or breakage
may cause a personal injury.
SAVE THESE INSTRUCTIONS.
WARNING:
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
1
2
3
001681
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.
For continuous operation, pull the switch trigger and
then push in the lock button.
To stop the tool from the locked position, pull the switch
trigger fully, then release it.
Speed adjusting dial
For BO4900V only
CAUTION:
• If the tool is operated continuously at low speeds,
the motor will get overloaded and heated up.
• 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.
The tool speed can be infinitely adjusted between 4,000
and 10,000 orbits per minute by turning the speed
adjusting dial, which is marked 1 to 5. Higher speed is
obtained when the dial is turned in the direction of
number 5, lower speed is obtained when it is turned in
the direction of number 1. Adjust the desired tool speed
for the kind of work.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the
tool.
1. Speed adjusting
dial
2. Lock button
3. Switch trigger

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Installing or removing abrasive paper
For conventional type of abrasive paper with
pre-punched holes (standard equipment):
Turn the clamp lever counterclockwise. Insert the paper
end into the clamper, aligning the holes in the paper with
those in the pad. Then return the clamp lever to the
original position to secure the paper. Repeat the same
process for the other end of the tool, maintaining the
proper paper tension.
1
23
001682
For conventional type of abrasive paper without
pre-punched holes (accessory):
Turn the clamp lever counterclockwise. Insert the paper
end into the clamper, aligning the paper edges even and
parallel with the sides of the base. Then return the clamp
lever to the original position to secure the paper. Repeat
the same process for the other end of the tool,
maintaining the proper paper tension.
Place the punch plate (optional accessory) over the
paper so that the guide of the punch plate is flush with
the sides of the pad. Then press the punch plate to
make holes in the paper.
1
2
001683
For hook-and-loop type of abrasive paper with
pre-punched holes (accessory):
Remove all dirt or foreign matter from the pad. Attach the
paper to the pad, aligning the holes in the paper with
those in the pad.
1
2
001684
CAUTION:
• Never use pressure-sensitive abrasive paper.
For BO4901 only
1
23
004436
NOTE:
• To use the hook-and-loop type of abrasive paper,
first replace the pad. Remove the pad for the
conventional type of abrasive paper from the tool
with a screwdriver.
Install the pad for the hook-and-loop type of
abrasive paper (optional accessory) on the tool.
Tighten the screws firmly to secure the pad.
Installing paper dust bag (accessory)
For BO4900, BO4900V only
Place the paper dust bag on the paper dust bag holder
with its front side upward. Insert the front fixing
cardboard of the paper dust bag into the groove of the
paper dust bag holder.
1
2
3
001685
Then press the upper part of the front fixing card-board
in arrow direction to hook it onto the claws.
1. Groove
2. Front fixing
cardboard
3. Paper dust bag
1. Pad
2. Screws
3. Screwdriver
1. Hook-and-loop
type of abrasive
paper with
pre-punched
holes
2. Pad for
hook-and-loop
type of abrasive
paper
1. Punch plate
2. Conventional
type of abrasive
paper without
pre-punched
holes
1. Clamp lever
2. Conventional
type of abrasive
paper with
pre-punched
holes
3. Pad for
conventional
type of
abrasive
p
a
p
e
r

6
1
2
001686
Insert the notch of the paper dust bag into the guide of
the paper dust bag holder. Then install the paper dust
bag holder set on the tool.
1
2
001687
001688
Installing dust bag (accessory)
For BO4900, BO4900V only
Install the dust bag on the tool so that the arrow with
"UP" indicated on the dust nozzle points upward.
008076
Emptying dust bag
When the dust bag is about half full, switch off and
unplug the tool. Hold the tool and remove the dust bag
from the dust nozzle while pressing the push button.
1
008077
1
2
3
4
008078
After emptying the dust bag, insert the hook on the dust
nozzle into the rectangular hole on one side of the dust
bag frame until it clicks into place on the oush the button.
008079
Connecting to vacuum cleaner
004515
When you wish to perform cleaner operation, connect a
vacuum cleaner to your tool. Connect a hose of vacuum
cleaner to the dust nozzle.
1. Dust nozzle
2. Hook
3. Dust bag
4. Push button
1. Push button
1. Guide
2. Notch
1. Claws
2. Upper part

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OPERATION
CAUTION:
• Never run the tool without the abrasive paper. You
may seriously damage the pad.
• Never force the tool. Excessive pressure may
decrease the sanding efficiency, damage the
abrasive paper and/or shorten tool life.
• The front grip is a screwed type one. Always be
sure that the front grip is tightened securely before
operation.
Turn the tool on and wait until it attains full speed. Then
gently place the tool on the workpiece surface. Keep the
base flush with the workpiece and apply a light pressure
on the tool.
001689
MAINTENANCE
CAUTION:
• Always be sure that the tool is switched off and
unplugged before attempting to perform inspection
or maintenance.
To maintain product SAFETY and RELIABILITY, repairs,
carbon brush inspection and replacement, any other
maintenance or adjustment should be performed by
Makita Authorized Service Centers, 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.
• Abrasive paper (with pre-punched holes)
• Abrasive paper (without pre-punched holes)
• Hook-and-loop type of abrasive paper
• Joint
• Dust bag and dust nozzle
• Paper dust bag
• Paper dust bag holder
• Dust bag
• Punch plate
• Pad (For use with hook-and-loop type of abrasive
paper)

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Makita Corporation Anjo, Aichi, Japan
884420E220