Operation - Makita 3708 Instruction Manual

OPERATION

Fig.4
Turn the tool on without the bit making any contact with
the workpiece and wait until the bit attains full speed.
Then move the tool over the workpiece surface, keeping
the tool base and trimmer shoe flush with the sides of the
workpiece.
NOTE:
This tool can be used as a conventional trimmer
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when you remove the trimmer shoe.
When doing edge cutting, the workpiece surface should
be on the left side of the bit in the feed direction.
4
1
2
3
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
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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.
When using the trimmer shoe, the straight guide or
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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
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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
Fig.6
The templet guide provides a sleeve through which the
bit passes, allowing use of the trimmer with templet
patterns.
Remove the tool base from the tool. Loosen the wing
bolts and secure the tool base horizontally. Loosen the
2
4
8
two screws on the tool base.
Fig.7
Place the templet guide on the tool base. There are four
convex portions on the templet guide. Secure two of the
four convex portions using the two screws. Install the tool
base on the tool.
Fig.8
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.9
NOTE:
The workpiece will be cut a slightly different size
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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
Straight guide (optional accessory)
Fig.10
The straight guide is effectively used for straight cuts
when chamfering or grooving.
Attach the guide plate to the straight guide with the bolt,
the wave washer, the flat washer and the wing nut.
Fig.11
Loosen the wing nut and secure the tool base
horizontally.
Fig.12
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.
Fig.13
Circular work
Fig.14
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.
For cutting circles between 121 mm and 221 mm in