Operation - Makita 3612 Instruction Manual

Speed adjusting dial (Fig. 7)
For model 3612C only
The tool speed can be changed by turning the speed
adjusting dial to a given number setting from 1 to 5.
Higher speed is obtained when the dial is turned in the
direction of number 5. And lower speed is obtained when
it is turned in the direction of number 1.
This allows the ideal speed to be selected for optimum
material processing, i.e. the speed can be correctly
adjusted to suit the material and bit diameter.
Refer to the table for the relationship between the num-
ber settings on the dial and the approximate tool speed.
Number
1
2
3
4
5
006450
CAUTION:
• If the tool is operated continuously at low speeds for a
long time, the motor will get overloaded, resulting in
tool malfunction.
• The speed adjusting dial can be turned only as far as 5
and back to 1. Do not force it past 5 or 1, or the speed
adjusting function may no longer work.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
Installing or removing the bit (Fig. 8)
CAUTION:
• Install the bit securely. Always use only the wrench pro-
vided with the tool. A loose or overtightened bit can be
dangerous.
• Use always a collet which is suitable for the shank
diameter of the bit.
• Do not tighten the collet nut without inserting a bit or
install small shank bits without using a collet sleeve.
Either can lead to breakage of the collet cone.
• Use only router bits of which the maximum speed, as
indicated on the bit, does exceed the maximum speed
of the router.
Insert the bit all the way into the collet cone. Press the
shaft lock to keep the shaft stationary and use the
wrench to tighten the collet nut securely. When using
router bits with smaller shank diameter, first insert the
appropriate collet sleeve into the collet cone, then install
the bit as described above.
To remove the bit, follow the installation procedure in
reverse.

OPERATION

(Fig. 9, 10 & 11)
CAUTION:
• Before operation, always make sure that the tool body
automatically rises to the upper limit and the bit does
not protrude from the tool base when the lock lever is
loosened.
8
• Before operation, always make sure that the chip
deflector is installed properly.
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. Lower the tool body and
move the tool forward over the workpiece surface, keep-
ing 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.
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
–1
min
forward too slowly may burn and mar the cut. The
9,000 proper feed rate will depend on the bit size, the kind of
workpiece and depth of cut. Before beginning the cut
12,000
on the actual workpiece, it is advisable to make a sam-
ple cut on a piece of scrap lumber. This will show
15,000
exactly how the cut will look as well as enable you to
19,000
check dimensions.
• When using the straight guide or the trimmer guide, be
23,000
sure to install it on the right side in the feed direction.
This will help to keep it flush with the side of the work-
piece.
Straight guide (optional accessory) (Fig. 12, 13 &
14)
The straight guide is effectively used for straight cuts
when chamfering or grooving.
Install the straight guide on the guide holder with the
wing bolt (B). Insert the guide holder into the holes in the
tool base and tighten the wing bolt (A). To adjust the dis-
tance between the bit and the straight guide, loosen the
wing bolt (B) and turn the fine adjusting screw (1.5 mm
per turn). At the desired distance, tighten the wing bolt
(B) to secure the straight guide in place.
Wider straight guide of desired dimensions may be made
by using the convenient holes in the guide to bolt on extra
pieces of wood.
When using a large diameter bit, attach pieces of wood
to the straight guide which have a thickness of more than
15 mm to prevent the bit from striking the straight guide.
When cutting, move the tool with the straight guide flush
with the side of the workpiece.
Templet guide (optional accessory)
17 & 18)
The templet guide provides a sleeve through which the
bit passes, allowing use of the tool with templet patterns.
For tool without lock plate
To install the templet guide, loosen the screws on the tool
base, insert the templet guide and then tighten the
screws.
For tool with lock plate
To install the templet guide, pull the lock plate lever and
insert the templet guide.
Secure the templet to the workpiece. Place the tool on
the templet and move the tool with the templet guide slid-
ing along the side of the templet.
(Fig. 15, 16,