Makita 3709 Manuel D'instructions page 6

ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
Installing or removing trimmer bit (Fig. 3)
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.
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. (Fig. 4)
NOTE:
• Moving the tool forward too fast may cause a poor quality of cut, or damage to the bit or motor. Moving the tool for-
ward 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.
• 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. (Fig. 5)
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.
Templet guide
The templet guide provides a sleeve through which the bit passes, allowing use of the trimmer with templet patterns.
(Fig. 6)
Remove the chip deflector.
Loosen the screws and remove the base protector. Place the templet guide on the base and replace the base protec-
tor. Then secure the base protector by tightening the screws. (Fig. 7)
Secure the templet to the workpiece. Place the tool on the templet and move the tool with the templet guide sliding
along the side of the templet. (Fig. 8)
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:
outside diameter of the templet guide – router bit diameter
Distance (X) =
Straight guide (Accessory)
The straight guide is effectively used for straight cuts
when chamfering or grooving. (Fig. 9)
Attach the guide plate to the straight guide with the bolt
and the wing nut. (Fig. 10)
Remove the chip deflector.
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. (Fig. 11)
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. (Fig. 12)
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Circular work
Circular work may be accomplished if you assemble the
straight guide and guide plate as shown in Fig. 13 or 14.
Min. and max. radius of circles to be cut (distance
between the centre of circle and the centre of bit) are as
follows:
Min.: 70 mm
Max.: 221 mm
Fig. 13 for cutting circles between 70 mm and 121 mm in
radius.
Fig. 14 for cutting circles between 121 mm and 221 mm
in radius.
NOTE:
• Circles between 172 mm and 186 mm in radius cannot
be cut using this guide.