4
SYMBOLS
USD201-2
The followings show the symbols used for tool.
V............................volts
A...........................amperes
Hz..........................hertz
....................alternating current
.......................no load speed
.......................Class II Construction
.../min....................revolutions or reciprocation per
minute
FUNCTIONAL DESCRIPTION
CAUTION:
•Always be sure that the tool is switched off and
unplugged before adjusting or checking function on
the tool.

Adjusting the depth of cut

Place the tool on a flat surface. Turn the scale ring until it
makes contact with the base. Loosen the clamp screw.
Turn the scale ring until the bit just touches the flat sur-
face. Tighten the clamp screw.
Place the tool on its side and turn the scale ring counter-
clockwise (when viewing the tool from the top) until the
desired depth of cut is obtained. One full turn of the scale
ring is equal to 1/4” change in depth setting. Loosen the
clamp screw and move the tool base until it makes con-
tact with the scale ring. Then tighten the clamp screw
securely.
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 15 mm (9/16”) at a
pass when cutting grooves with a 6 mm (1/4”) diam-
eter bit.
NOTE:
•When cutting grooves with a 20 mm (13/16”) diam-
eter bit, the depth of cut should not be more than 5
mm (3/16”) at a pass.
When you wish to cut grooves more than 15 mm (9/
16”) deep with a 6 mm (1/4”) diameter bit or more
than 5 mm (3/16”) deep with a 20 mm (13/16”)
diameter bit, make several passes with progres-
sively deeper bit settings.

Switch action

CAUTION:
•Before plugging in the tool, always check to see
that the tool is switched off.
•Switch can be locked in “ON” position for ease of
operator comfort during extended use. Apply cau-
tion when locking tool in “ON” position and maintain
firm grasp on tool.
•Make sure that the shaft lock is released before the
switch is turned on.
To start the tool, move the switch lever to the I (ON) posi-
tion. 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.

Installing or removing the bit

CAUTION:
•Install the bit securely. Always use only the wrench
provided with the tool. A loose or overtightened bit
can be dangerous.
•Do not tighten the collet nut without inserting a bit,
or the collet cone will break.
1. Scale ring
2. Clamp screw
1
2
003651
1. Switch lever
1
003659