7
OPERATING INSTRUCTIONS
Installing or removing trimmer bit (Fig. 1)
Important:
Always be sure that the tool is switched off and
unplugged before installing or removing the bit.
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.
CAUTION:
• Do not tighten the collet nut without inserting a bit, or
the collet cone will break.
• Use only the wrenches provided with the tool.
Adjusting bit protrusion (Fig. 2 & 3)
To adjust the bit protrusion, loosen the lever and move
the tool base up or down as desired by pressing and
turning the adjusting roller. After adjusting, tighten the
lever firmly to secure the tool base.
Switch action (Fig. 4)
CAUTION:
Before plugging in the tool, always be sure that the tool is
switched off.
To start the tool, move the switch lever to the “I” (ON)
position. To stop the tool, move the switch lever to the “0”
(OFF) position.
Lighting up the lamps
For 3707F only
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
• Do not look in the light or see the source of light directly.
To turn on the lamp, start the tool. Then, the lamp lights
up the top of the bit. To turn it off, stop the tool.
NOTE:
Use a dry cloth to wipe the dirt off the lens of lamp. Be
careful not to scratch the lens of lamp, or it may lower the
illumination.
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. 5)
NOTE:
• Moving the tool forward too fast may cause a poor qual-
ity 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 sam-
ple 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. 6)
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 sev-
eral passes with progressively deeper bit settings.
Straight guide
The straight guide is effectively used for straight cuts
when chamfering or grooving. (Fig. 7)
Attach the guide plate to the straight guide with the bolt,
the wave washer, the flat washer and the wing nut. (Fig. 8)
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. (Fig. 9)
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. 10)
Circular work
• Circular work may be accomplished if you assemble the
straight guide and guide plate as shown in Fig. 11 or 12.
Fig. 11 for cutting circles between 70 mm and 121 mm
in radius.
Fig. 12 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.
• 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
Align the centre hole in the straight guide with the centre
of the circle to be cut. Drive a nail less than 6 mm in diam-
eter into the centre hole to secure the straight guide. Pivot
the tool around the nail in clockwise direction. (Fig. 13)
Trimmer guide
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. (Fig. 14)
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 turn-
ing the adjusting screw (1 mm per turn). At the desired
distance, tighten the clamp screw (B) to secure the trim-
mer guide in place. (Fig. 15)
When cutting, move the tool with the guide roller riding
the side of the workpiece. (Fig. 16)
