Makita BO4900, BO4901 User Manual
INSTRUCTION MANUAL
MANUEL D'INSTRUCTION
MANUAL DE INSTRUCCIONES
Finishing Sander
Ponceuse orbitale
Lijadora orbital
BO4900V
BO4900
BO4901
001680
DOUBLE INSULATION
DOUBLE ISOLATION
DOBLE AISLAMIENTO
WARNING:
For your personal safety, READ and UNDERSTAND before using.
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.
AVERTISSEMENT:
Pour votre propre sécurité, prière de lire attentivement avant l’utilisation.
GARDER CES INSTRUCTIONS POUR RÉFÉRENCE ULTÉRIEURE.
ADVERTENCIA:
Para su seguridad personal, LEA DETENIDAMENTE este manual antes de usar la herramienta.
GUARDE ESTAS INSTRUCCIONES PARA FUTURA REFERENCIA.
ENGLISH
SPECIFICATIONS
Model BO4900V BO4900 BO4901
Pad size 115 mm x 229 mm (4-1/2” x 9”)
Abrasive paper size 115 mm x 280 mm (4-1/2” x 11”)
Orbits per minute 4,000 - 10,000/min. 10,000/min. 10,000/min.
Sanding stroke rate 8,000 - 20,000/min. 20,000/min. 20,000/min.
Overall length 289 mm (11-3/8”)
Net weight 2.8 kg (6.2 lbs)
• 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.
GENERAL SAFETY RULES
USA002-2
(For All Tools)
WARNING:
Read and understand all instructions.
Failure to follow all instructions listed below,
may result in electric shock, fire and/or
serious personal injury.
SAVE THESE INSTRUCTIONS
Work Area
1. Keep your work area clean and well lit. Cluttered
benches and dark areas invite accidents.
2. Do not operate power tools in explosive atmo-
spheres, such as in the presence of flammable
liquids, gases, or dust. Power tools create sparks
which may ignite the dust or fumes.
3. Keep bystanders, children, and visitors away
while operating a power tool. Distractions can
cause you to lose control.
Electrical Safety
4. Double insulated tools are equipped with a
polarized plug (one blade is wider than the
other.) This plug will fit in a polarized outlet only
one way. If the plug does not fit fully in the outlet,
reverse the plug. If it still does not fit, contact a
qualified electrician to install a polarized outlet.
Do not change the plug in any way. Double insula-
tion eliminates the need for the three wire
grounded power cord and grounded power supply
system.
5. Avoid body contact with grounded surfaces
such as pipes, radiators, ranges and refrigera-
tors. There is an increased risk of electric shock if
your body is 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 to
carry the tools or pull the plug from an outlet.
Keep cord away from heat, oil, sharp edges or
moving parts. Replace damaged cords immediately. Damaged cords increase the risk of electric
shock.
8. When operating a power tool outside, use an
outdoor extension cord marked “W-A” or “W”.
These cords are rated for outdoor use and reduce
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 tool while tired or under the influence of
drugs, alcohol, or medication. A moment of inat-
tention while operating power tools may result in
serious personal injury.
10. Dress properly. Do not wear loose clothing or
jewelry. Contain long hair. Keep your hair, clothing, and gloves away from moving parts. Loose
clothes, jewelry, or long hair can be caught in moving parts.
11. Avoid accidental starting. Be sure switch is off
before plugging in. Carrying tools with your finger
on the switch or plugging in tools that have the
switch on invites accidents.
12. Remove adjusting keys or wrenches before turning the tool on. A wrench or a key that is left
attached to a rotating part of the tool may result in
personal injury.
13. Do not overreach. Keep proper footing and balance at all times. Proper footing and balance
2
enables better control of the tool in unexpected situations.
14. Use safety equipment. Always wear eye protection. Dust mask, non-skid safety shoes, hard hat, or
hearing protection must be used for appropriate conditions. Ordinary eye or sun glasses are NOT eye
protection.
Tool Use and Care
15. Use clamps or other practical way to secure and
support the workpiece to a stable platform. Hold-
ing the work by hand or against your body is unstable and may lead to loss of control.
16. Do not force tool. Use the correct tool for your
application. The correct tool will do the job better
and safer at the rate for which it is designed.
17. Do not use tool if switch does not turn it on or
off. Any tool that cannot be controlled with the
switch is dangerous and must be repaired.
18. Disconnect the plug from the power source
before making any adjustments, changing
accessories, or storing the tool. Such preventive
safety measures reduce the risk of starting the tool
accidentally.
19. Store idle tools out of reach of children and
other untrained persons. Tools are dangerous in
the hands of untrained users.
20. Maintain tools with care. Keep cutting tools
sharp and clean. Properly maintained tools with
sharp cutting edges are less likely to bind and are
easier to control.
21. Check for misalignment or binding of moving
parts, breakage of parts, and any other condition
that may affect the tools operation. If damaged,
have the tool serviced before using. Many acci-
dents are caused by poorly maintained tools.
22. Use only accessories that are recommended by
the manufacturer for your model. Accessories
that may be suitable for one tool, may become hazardous when used on another tool.
SERVICE
23. Tool service must be performed only by qualified
repair personnel. Service or maintenance per-
formed by unqualified personnel could result in a risk
of injury.
24. When servicing a tool, use only identical
replacement parts. Follow instructions in the
Maintenance section of this manual. Use of unau-
thorized parts or failure to follow Maintenance
instructions may create a risk of electric shock or
injury.
USE PROPER EXTENSION CORD: Make sure your
extension cord is in good condition. When using an
extension cord, be sure to use one heavy enough to
carry the current your product will draw. An undersized
cord will cause a drop in line voltage resulting in loss of
power and overheating. Table 1 shows the correct size to
use depending on cord length and nameplate ampere
rating. If in doubt, use the next heavier gage. The smaller
the gage number, the heavier the cord.
Table 1. Minimum gage for cord
Ampere Rating
Volts Total length of cord in feet
120 V 25 ft. 50 ft. 100 ft. 150 ft.
More Than Not More Than AWG
0 6 18 16 16 14
6 10 18161412
10 12 16 16 14 12
12 16 14 12 Not Recommended
SPECIFIC SAFETY RULES
USB040-5
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 tool by insulated gripping surfaces when
performing an operation where the cutting tool
may contact hidden wiring or its own cord. Con-
tact 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.
3
7. Use of this tool to sand some products, paints
and wood could expose user to dust containing
hazardous substances. Use appropriate respiratory protection.
8. 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.
SYMBOLS
The followings show the symbols used for tool.
V............................volts
A ...........................amperes
Hz..........................hertz
....................alternating current
.......................no load speed
.......................Class II Construction
.../min....................orbits per minute
USD205-1
FUNCTIONAL DESCRIPTION
CAUTION:
• Always be sure that the tool is switched off and
unplugged before adjusting or checking function on
the tool.
Switch action
3
001681
1
2
1. Speed adjusting dial
2. Lock button
3. Switch trigger
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 for
a long time, 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.
Installing or removing abrasive paper
For conventional type of abrasive paper with prepunched holes (standard equipment):
1
2
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.
3
001682
1. Clamp lever
2. Conventional
3. Pad for conven-
type of abrasive
paper with prepunched holes
tional type of
abrasive paper
CAUTION:
• Before plugging in the tool, always check to see
that the switch trigger actuates properly and returns
to the “OFF” position when released.
4
For conventional type of abrasive paper without prepunched holes (optional accessory):
001683
1. Punch plate
1
2. Conventional
type of abrasive
paper without
pre-punched
holes
004436
1. Pad
2
1
3
2. Screws
3. Screwdriver
2
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.
For hook-and-loop type of abrasive paper with prepunched holes (optional accessory):
001684
1. Hook-and-loop
1
2
2. Pad for hook-
type of abrasive
paper with prepunched holes
and-loop type of
abrasive paper
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.
CAUTION:
• Never use pressure-sensitive abrasive paper.
For BO4901 only
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
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
Then press the upper part of the front fixing card-board in
arrow direction to hook it onto the claws.
1
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.
2
001685
1. Groove
2
2. Front fixing
cardboard
3. Paper dust bag
3
001686
1. Claws
2. Upper part
2
001687
1. Guide
2. Notch
1
5
001688
Connecting to vacuum cleaner
When you wish to perform cleaner operation, connect a
vacuum cleaner to your tool. Connect a hose of vacuum
cleaner to the dust nozzle.
004515
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 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 or Factory 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 papers (with pre-punched holes)
• Abrasive papers (without pre-punched holes)
• Abrasive papers (with pre-punched holes, hook-
and-loop type)
• Punch plate
• Pad (for conventional type)
• Pad (for hook-and-loop type)
• Dust nozzle
• Dust bag
• Paper dust bag
• Paper dust bag holder
MAKITA LIMITED ONE YEAR WARRANTY
Warranty Policy
Every Makita tool is thoroughly inspected and tested
before leaving the factory. It is warranted to be free of
defects from workmanship and materials for the period of
ONE YEAR from the date of original purchase. Should
any trouble develop during this one year period, return
the COMPLETE tool, freight prepaid, to one of Makita’s
Factory or Authorized Service Centers. If inspection
shows the trouble is caused by defective workmanship or
material, Makita will repair (or at our option, replace)
without charge.
This Warranty does not apply where:
• repairs have been made or attempted by others:
• repairs are required because of normal wear and
tear:
• the tool has been abused, misused or improperly
maintained:
• alterations have been made to the tool.
EN0006-1
6
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