Makita BO3700 User manual

DOUBLE
INSULATION
BO3700
Finishing Sander

2
SPECIFICATIONS
Model BO3700
Pad size .................................................................................................................................... 93 mm x 185 mm
Abrasive paper size ................................................................................................................... 93 mm x 228 mm
Orbits per minute ..................................................................................................................................... 10,000
Overall length ..........................................................................................................................................254 mm
Net weight .................................................................................................................................................. 1.4 kg
• Due to our continuing program of research and development, the specifications herein are subject to change
without notice.
• Note: Specifications may differ from country to country.
Intended use
The tool is intended for the sanding of large surface of wood, plastics and metal materials as well as painted
surfaces.
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: 71 dB (A)
sound power level: 85 dB (A)
– Wear ear protection. –
The typical weighted root mean square acceleration
value is 3 m/s2.
EC-DECLARATION OF CONFORMITY
We declare under our sole responsibility that this product
is in compliance with the following standards or standard-
ized documents,
HD400, EN50144, EN55014, EN61000
in accordance with Council Directives, 73/23/EEC,
89/336/EEC and 98/37/EC.
Yasuhiko Kanzaki
CE 2000
Director
MAKITA INTERNATIONAL EUROPE LTD.
MAKITA INTERNATIONAL EUROPE LTD.MAKITA INTERNATIONAL EUROPE LTD.
MAKITA INTERNATIONAL EUROPE LTD.
Michigan Drive, Tongwell, Milton Keynes,
Bucks MK15 8JD, ENGLAND
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Symbols
The following show the symbols used for the tool. Be sure that you understand their meaning before use.
❏Read instruction manual.
❏DOUBLE INSULATION

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ENGLISH
Explanation of general view
1 Clamper
2 Conventional type of abrasive
paper with pre-punched holes
3 Pad for conventional type of
abrasive paper
4 Punch plate
5 Conventional type of abrasive
paper without pre-punched
holes
6 Screws
7 Screwdriver
8 Hook-and-loop type of
abrasive paper with
pre-punched holes
9 Pad for hook-and-loop type of
abrasive paper
10 Dust bag
11 Dust spout
12 Switch trigger
13 Lock button
SAFETY INSTRUCTIONS
Warning! When using electric tools, basic safety pre-
cautions should always be followed to reduce the
risk of fire, electric shock and personal injury, includ-
ing the following. Read all these instructions before
attempting to operate this product and save these
instructions.
For safe operation:
1. Keep work area clean
Cluttered areas and benches invite injuries.
2. Consider work area environment
Don’t expose power tools to rain. Don’t use power
tools in damp or wet locations. Keep work area well
lit. Don’t use power tools in presence of flammable
liquids or gases.
3. Guard against electric shock
Prevent body contact with grounded surfaces (e.g.
pipes, radiators, ranges, refrigerators).
4. Keep children away
Do not let visitors contact 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 dry, high,
or locked-up place, out of the reach of children.
6. Don’t force tool
It will do the job better and safer at the rate for which
it was intended.
7. Use right tool
Don’t force small tools or attachments to do the job
of a heavy duty tool. Don’t use tools for purposes not
intended; for example, don’t use circular saw for cut-
ting tree limbs or logs.
8. Dress properly
Do not wear loose clothing or jewelry. They can be
caught in moving parts. Rubber gloves and non-skid
footwear are recommended when working outdoors.
Wear protective hair covering to contain long hair.
9. Use safety glasses and hearing protection
Also use face or dust mask if 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. Don’t abuse cord
Never carry tool by cord or yank it to disconnect it
from receptacle. Keep cord from heat, oil and sharp
edges.
12. Secure work
Use clamps or a vise to hold work. It’s safer than
using your hand and it frees both hands to operate
tool.
13. Don’t overreach
Keep proper footing and balance at all times.
14. Maintain tools with care
Keep tools sharp and clean for better and safer per-
formance. Follow instructions for lubricating and
changing accessories. Inspect tool cords periodi-
cally and, if damaged, have repaired by 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 tool before
turning it on.
17. Avoid unintentional starting
Don’t carry plugged-in tool with finger on switch. Be
sure switch is off when plugging in.
18. Outdoor use extension cords
When tool is used outdoors, use only extension
cords intended for use outdoors and so marked.
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, binding 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 autho-
rized service center unless otherwise indicated else-
where in this instruction manual. Have defective
switches replaced by and authorized service center.
Do not use tool if switch does not turn it on and off.
21. Warning
The use of any other accessory or attachment other
than recommended in this operating instruction or
the catalog may present a risk of personal injury.
22. Have your tool repaired by an expert
This electric appliance is in accordance with the rel-
evant safety rules. Repairing of electric appliances
may be carried out only by experts otherwise it may
cause considerable danger for the user.

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ADDITIONAL SAFETY RULES
1. Hold the tool firmly.
2. Do not leave the tool running. Operate the tool
only when hand-held.
3. This tool has not been waterproofed, so do not
use water on the workpiece surface.
4. Ventilate your work area adequately when you
perform sanding operations.
SAVE THESE INSTRUCTIONS.
OPERATING INSTRUCTIONS
Installing or removing abrasive paper
Important:
Always be sure that the tool is switched off and
unplugged before installing or removing the abrasive
paper.
For conventional type of abrasive paper with pre-
punched holes (standard equipment):
Press the clamper. Insert the paper end into the clamper,
aligning the holes in the paper with those in the pad.
Then release the clamper to secure the paper. Repeat
the same process for the other end of the base, maintain-
ing the proper paper tension. (Fig. 1)
For conventional type of abrasive paper without pre-
punched holes (available on the market):
Press the clamper. Insert the paper end into the clamper,
aligning the paper edges even and parallel with the sides
of the base. Then release the clamper to secure the
paper. Repeat the same process for the other end of the
base, 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
base. Then press the punch plate to make holes in the
paper. (Fig. 2)
For hook-and-loop type of abrasive paper with pre-
punched holes (optional accessory):
Remove the pad for the conventional type of abrasive
paper from the tool with a screwdriver. (Fig. 3)
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. Remove all dirt or for-
eign matter from the pad. Attach the paper to the pad,
aligning the holes in the paper with those in the pad.
(Fig. 4)
CAUTION:
Always use hook-and-loop type of abrasive papers.
Never use pressure-sensitive abrasive paper.
Installing dust bag (Fig. 5)
Attach the dust bag onto the dust spout. The dust spout
is tapered. When attaching the dust bag, push it onto the
dust spout firmly as far as it will go to prevent it from com-
ing off during operation. For the best results, empty the
dust bag when it becomes about half full, tapping it lightly
to remove as much dust as possible.
Switch action (Fig. 6)
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 trigger. Release the trig-
ger to stop. For continuous operation, pull the trigger and
then push in the lock button. To stop the tool from the
locked position, pull the trigger fully, then release it.
Operation (Fig. 7)
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.
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.
MAINTENANCE
CAUTION:
Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
To maintain product safety and reliability, repairs, mainte-
nance or adjustment should be carried out by a Makita
Authorized Service Center.

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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. The accessories or attachments should
be used only in the proper and intended manner.
• Punch plate
• Hose 28-1.5
• Backing pad
(For use with hook-and-loop type of abrasive paper)
• Backing pad
(For use with conventional type of abrasive paper)
• Abrasive paper
(with pre-punched holes)
Grit Use
60
Coarse
80
120 Medium
180 Fine
240
• Hook-and-loop type of abrasive paper
(with pre-punched holes)
Grit Use
60
Coarse
80
120 Medium
180
Fine
240

Makita Corporation
884274-996