Page 1
ENGLISH (Original instructions)
INSTRUCTION MANUAL
Trimmer
3709
DOUBLE INSULATION
WARNING:
For your personal safety, READ and UNDERSTAND before using.
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.
1
006612
Page 2
ENGLISH
SPECIFICATIONS
Model 3709
Collet chuck capacity 6 mm or 1/4"
No load speed (min-1) 30,000
Overall length 199 mm
Net weight 1.5 kg
• Due to our continuing programme 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
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
Intended use
The tool is intended for flush trimming and profiling of
wood, plastic and similar materials.
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.
General Power Tool Safety
Warnings
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.
Safety class /II
END201-5
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
1. Keep work area clean and well lit. Cluttered or
dark areas invite accidents.
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.
ENE010-1
ENF002-1
GEA005-2
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
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.
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9. If operating a power tool in a damp location is
unavoidable, use a ground fault circuit
interrupter (GFCI) protected supply. Use of an
GFCI reduces the risk of electric shock.
Personal safety
10. 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.
11. Use personal protective equipment. Always
wear eye protection. Protective equipment such
as dust mask, non-skid safety shoes, hard hat, or
hearing protection used for appropriate conditions
will reduce personal injuries.
12. 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.
13. 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.
14. Do not overreach. Keep proper footing and
balance at all times. This enables better control
of the power tool in unexpected situations.
15. 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.
16. 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 dust-related
hazards.
Power tool use and care
17. 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.
18. 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.
19. 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.
20. 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.
21. 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.
22. Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges
are less likely to bind and are easier to control.
23. 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.
Service
24. 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.
25. Follow instruction for lubricating and
changing accessories.
26. Keep handles dry, clean and free from oil and
grease.
GEB019-2
TRIMMER SAFETY WARNINGS
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. Use clamps or another practical way to secure
and support the workpiece to a stable platform.
Holding the work by hand or against your body
leaves it unstable and may lead to loss of control.
3. Wear hearing protection during extended
period of operation.
4. Handle the bits very carefully.
5. Check the bit carefully for cracks or damage
before operation. Replace cracked or
damaged bit immediately.
6. Avoid cutting nails. Inspect for and remove all
nails from the workpiece before operation.
7. Hold the tool firmly.
8. Keep hands away from rotating parts.
9. Make sure the bit is not contacting the
workpiece before the switch is turned on.
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10. Before using the tool on an actual workpiece,
let it run for a while. Watch for vibration or
wobbling that could indicate improperly
installed bit.
11. Be careful of the bit rotating direction and the
feed direction.
12. Do not leave the tool running. Operate the tool
only when hand-held.
13. Always switch off and wait for the bit to come
to a complete stop before removing the tool
from workpiece.
14. Do not touch the bit immediately after
operation; it may be extremely hot and could
burn your skin.
15. Do not smear the tool base carelessly with
thinner, gasoline, oil or the like. They may
cause cracks in the tool base.
16. Draw attention to the need to use cutters of the
correct shank diameter and which are suitable
for the speed of the tool.
17. Some material contains chemicals which may
be toxic. Take caution to prevent dust
inhalation and skin contact. Follow material
supplier safety data.
18. Always use the correct dust mask/respirator
for the material and application you are
working with.
SAVE THESE INSTRUCTIONS.
WARNING:
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
injury.
FUNCTIONAL DESCRIPTION
CAUTION:
• Always be sure that the tool is switched off and
unplugged before adjusting or checking function on
the tool.
Adjusting bit protrusion
1. Base
3
2. Scale
1
5
2
006613
To adjust the bit protrusion, loosen the clamping nut and
move the tool base up or down as desired by turning the
adjusting screw. After adjusting, tighten the clamping nut
firmly to secure the tool base.
3. Bit protrusion
4. Clamping nut
5. Adjusting screw
4
Switch action
1. Switch lever
1
006614
To start the tool, move the switch lever to the I (ON)
position. To stop the tool, move the switch lever to the O
(OFF) position.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the
tool.
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Installing or removing trimmer bit
1. Loosen
1
006615
CAUTION:
• Use only the wrenches provided with the tool.
Insert the bit all the way into the collet cone and tighten
the collet nut securely with the two wrenches.
To remove the bit, follow the installation procedure in
reverse.
2
3
2. Tighten
3. Hold
OPERATION
Set the tool base on the workpiece to be cut without the
bit making any contact. Then turn the tool on and wait
until the bit attains full speed. Move the tool forward over
the workpiece surface, keeping the tool base flush and
advancing smoothly until the cutting is complete.
When doing edge cutting, the workpiece surface should
be on the left side of the bit in the feed direction.
2
1
2
1. Workpiece
2. Bit revolving direction
3. View from the top of the tool
4. Feed direction
001984
NOTE:
• Moving the tool forward too fast may cause a poor
quality of cut, or damage to the bit or motor.
Moving the tool forward too slowly may burn and
mar the cut. The proper feed rate will depend on
the bit size, the kind of workpiece and depth of cut.
Before beginning the cut on the actual workpiece, it
is advisable to make a sample cut on a piece of
scrap lumber. This will show exactly how the cut
will look as well as enable you to check
dimensions.
4
3
4
2
1
001985
NOTE:
• When using the trimmer shoe, the straight guide or
the trimmer guide, be sure to keep it on the right
side in the feed direction. This will help to keep it
flush with the side of the workpiece.
CAUTION:
• Since excessive cutting may cause overload of the
motor or difficulty in controlling the tool, the depth
of cut should not be more than 3 mm at a pass
when cutting grooves. When you wish to cut
grooves more than 3 mm deep, make several
passes with progressively deeper bit settings.
1. Feed direction
3
2. Bit revolving
direction
3. Workpiece
4. Straight guide
4
Templet guide
006616
The templet guide provides a sleeve through which the
bit passes, allowing use of the trimmer with templet
patterns.
Remove the chip deflector.
1
2
006627
Loosen the screws and remove the base protector.
Place the templet guide on the base and replace the
base protector. Then secure the base protector by
tightening the screws.
Secure the templet to the workpiece. Place the tool on
5
1. Base protector
2. Screws
3
3. Screwdriver
2
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the templet and move the tool with the templet guide
sliding along the side of the templet.
1
2
3
4
005435
NOTE:
• The workpiece will be cut a slightly different size
from the templet. Allow for the distance (X)
between the router bit and the outside of the
templet guide. The distance (X) can be calculated
by using the following equation:
Distance (X) = (outside diameter of the templet guide router bit diameter) / 2
1. Bit
5
2. Base
3. Templet
4. Workpiece
5. Templet guide
Straight guide (Accessory)
1. Clamp screw (A)
1
2
006624
Attach the straight guide with the clamp screw (A).
Loosen the wing nut on the straight guide and adjust the
distance between the bit and the straight guide. At the
desired distance, tighten the wing nut securely.
When cutting, move the tool with the straight guide flush
with the side of the workpiece.
If the distance (A) between the side of the workpiece and
the cutting position is too wide for the straight guide, or if
the side of the workpiece is not straight, the straight
guide cannot be used. In this case, firmly clamp a
straight board to the workpiece and use it as a guide
against the trimmer base. Feed the tool in the direction
of the arrow.
3
A
2. Straight guide
3. Wing nut
4. Base
4
006623
The straight guide is effectively used for straight cuts
when chamfering or grooving.
Attach the guide plate to the straight guide with the bolt
and the wing nut.
1
2
3
4
006617
Remove the chip deflector.
1. Bolt
2. Guide plate
3. Straight guide
4. Wing nut
006618
Circular work
1
4
5
006619
Circular work may be accomplished if you assemble the
straight guide and guide plate as shown in the figures.
Min. and max. radius of circles to be cut (distance
between the center of circle and the center of bit) are as
follows:
Min.: 70 mm
Max.: 221 mm
For cutting circles between 70 mm and 121 mm in
radius.
6
1. Wing nut
2. Guide plate
3. Straight guide
4. Center hole
5. Bolt
2
3
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For cutting circles between 121 mm and 221 mm in
radius.
1
4
5
006620
NOTE:
• Circles between 172 mm and 186 mm in radius
cannot be cut using this guide.
Align the center hole in the straight guide with the center
of the circle to be cut. Drive a nail less than 6 mm in
diameter into the center hole to secure the straight guide.
Pivot the tool around the nail in clockwise direction.
006625
1. Wing nut
2. Guide plate
3. Straight guide
4. Center hole
5. Bolt
2
3
1. Nail
2. Center hole
3. Straight guide
1
2
3
1
2
3
4
006621
When cutting, move the tool with the guide roller riding
the side of the workpiece.
2
1
001998
1. Clamp screw
(A)
2. Adjusting screw
3. Clamp screw
(B)
4. Trimmer guide
1. Workpiece
2. Bit
3. Guide roller
3
MAINTENANCE
CAUTION:
• Always be sure that the tool is switched off and
unplugged before attempting to perform inspection
or maintenance.
Replacing carbon brushes
1. Limit mark
006626
Trimming, curved cuts in veneers for furniture and the
like can be done easily with the trimmer guide. The
guide roller rides the curve and assures a fine cut.
Install the trimmer guide on the tool base with the clamp
screw (A). Loosen the clamp screw (B) and adjust the
distance between the bit and the trimmer guide by
turning the adjusting screw (1 mm per turn). At the
desired distance, tighten the clamp screw (B) to secure
the trimmer guide in place.
1
001145
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.
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.
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1. Brush holder
2. Screwdriver
1
"U"Grooving bit
cap
2
006622
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.
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.
Router bits
Straight bit
005116
20 6
20E 1/4"
86
8E 1/4"
66
6E 1/4"
006485
DA L 1L 2
20 50 15
850
650
mm
18
18
R
005117
DAL 1L 2
66
6E 1/4"
006486
66028
"V"Grooving bit
005118
DAL 1L 2
1/4" 20 50 15 90
006454
Drill point flush trimming bit
005120
DAL 1L 2
66
6E 1/4"
006487
66018
8
mm
mm
R
3
mm
L 3
28
Page 9
Drill point double flush trimming bit
Cove beading bit
005121
D A L 1 L 2 L 4
66
6E 1/4"
006488
Corner rounding bit
005125
DA 1 L 1L 2 H
8R 6
8RE 1/4"
4R 6
4RE 1/4"
006489
25 48 13 8
20
Chamfering bit
67040
A 2
9
845 10
005129
mm
L 3
14
12
DAL 1L 2R
006464
20 43 8 46
6254813 8
mm
Ball bearing flush trimming bit
005130
mm
L 3
5
4
DA L 1 L 2
006465
1/4"
6
4
10 50 20
mm
Ball bearing corner rounding bit
005126
D A L 1 L 2 L 3
6
23 46 11 6 30
6
20 50 13 5
62049142
006462
005131
mm
45
60
D A 1 A 2 L 1 L 2 L 3 R
15 8 37 7
006466
1/4"
6
6
21 8
21
40 10
8 40 10 3.5 6
mm
3.5 3
3.5 6
9
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Ball bearing chamfering bit
Ball bearing roman ogee bit
005132
D A 1 L 1
6
26 42
1/4"
006467
A 2
8
841
L 2
12
11
Ball bearing beading bit
005133
D A 1 A 2 A 3 L 1 L 2 L 3 R
6
6
006468
20 12 8 40
10
12 726 12 8 42
Ball bearing cove beading bit
5.5 4
4.5
005135
mm
45
60620
mm
D A 1 A 2 L 1 L 2 L 3 R1 R2
006470
6
20 8 40 10
6
4.5
4.5 626 8 42 12
2.5 4.5
3
mm
005134
D A 1 A 2 A 4 L 1 L 2 L 3 R
6
20 18 8
6
006469
A 3
12 40
12
10
12 526 22 8 42
5.5 3
5
mm
10
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11 12
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884629A8
Makita Corporation
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