Black & Decker RS250 Instruction Manual page 5

611197-01 RS250 Rotary Tool
and in good condition. Damaged bits
can cause the tool to jump injuring the
operator.
• If your tool fails to function properly,
take it to an authorized service
center. There are no user serviceable
parts inside this tool and it should only
be opened by
personnel.
TO MAINTAIN SAFE TOOL CONTROL
• Make sure the work surface is free of
nails or screws. Cutting into a nail or
screw may cause the tool to jump,
damaging the bit.
• Never operate the tool with one hand
while holding the workpiece with the
other hand. Always clamp the material
and guide the tool with both hands.
• Do not cut material lying on a hard
surface. Clearance behind material to be
cut must be allowed for protruding bit.
Disconnect plug from power supply
•
before making adjustments, changing
bits, or cleaning tool.
• Do not start the tool with bit
engaged in the material. The bit may
grab the material.
USE OF EXTENSION CORDS
Make sure the extension cord is in good
condition before using. Always use the
proper size extension cords with the tool –
that is, proper wire size for various lengths
of cord and heavy enough to carry the
current the tool will draw. Use of an
undersized cord will cause a drop in line
voltage resulting in loss of power and
overheating. For proper size cords see
chart.
Minimum Gage for Extension Cords (AWG)
120 VAC Tools
Total Cord Length 0-25 26-50 51-100 101-150
Amp Rating AWG AWG AWG
More than 0 18
Not More than 6
More than 6 18
Not More than 10
More than 10 16
Not more than 12
More than 12 14
Not more than 16
10/22/02 2:27 PM
MOTOR
Be sure your power supply agrees with
nameplate marking. 120 volts AC means
your tool may be operated only with
alternating current and never with direct
current.
SWITCH (FIG. 1)
trained service
To start the motor, slide the switch (A) to "I"
position. To stop the motor, slide the
switch to "O" position.
INSTALLING AND REMOVING THE BIT
(FIG. 2)
To change bits, FIRST turn off the tool and
disconnect from power supply.
1. To replace bit, depress and hold
spindle lock (B) and turn collet nut (C)
counter clockwise with the wrench
provided.
2. Remove old bit.
be hot.
3. Insert new bit.
WARNING: The bits are sharp and
should be handled with care.
CAUTION: When replacing bits, do
not insert cutting flutes into the collet.
This may result in broken bits.
4. While depressing spindle lock, turn the
collet nut clockwise with the wrench to
firmly tighten the collet.
CAUTION: Never tighten the collet
without a bit installed.
NOTE: Rotary saw accessory bits can be
stored in the wrench handle. See Fig. 3.
CHANGING THE COLLET (FIG. 4)
Some accessories require different sized
collets. The two collets used with
Black & Decker accessories are 1/8" and
1/4". The RS250 comes with both the 1/8"
and 1/4" collets as standard equipment.
TO CHANGE THE COLLET:
CAUTION: Collet may be hot.
AWG
1. Turn off tool, allow it to come to a
16 16 14
complete stop and disconnect from
power supply.
16 14 12
2. Depress and hold in spindle lock (B)
and turn collet nut (C) counterclockwise
16 14 12
with the wrench provided.
3. Remove the collet nut and collet from
12 Not
the threaded spindle (see Fig. 4).
Recomended
4. Thread the new collet nut and collet
onto the spindle.
5. Insert proper bit and securely tighten
collet nut with wrench.
CAUTION: Never tighten the collet
without a bit installed.
5
Page 5
CAUTION: Bit may