Functional Description And Specifications - Bosch 1638 Operating/Safety Instructions Manual

BM 2610995759 11/00 11/16/00 11:50 AM

Functional Description and Specifications

Disconnect the plug from the power source before making any
WARNING
!
assembly, adjustments or changing accessories. Such preventive
safety measures reduce the risk of starting the tool accidentally.
ON/OFF SLIDE
SWITCH
SHAFT LOCK
COLLET NUT
DEPTH GUIDE
NOTE: For tool specifications refer to nameplate on your tool.
SLIDE "ON/OFF" SWITCH
This tool is switched "ON" by the slide
switch located on the front of the motor
housing.
TO TURN THE TOOL "ON" slide the switch
button up.
TO TURN THE TOOL "OFF" slide the switch
button down or "0" position.
Hold the tool with both
WARNING
!
hands while starting, since
torque from the motor can cause the tool to
twist.
INSTALLING BITS
The bits are held by a collet system. Use
either the 1/8" or 1/4" collet depending on
the size of the bit shank.
Do Not Use .118" shank bits in the 1/8"
collet use only BOSCH "SC" series bits or
similar bits with 1/8" (.125") or 1/4" (.250")
shanks.
Page 6
Rotary Cutter
B1155
Operating Instructions
WARNING
!
caution.
Depress and hold the shaft-lock in and
rotate the collet nut and shaft until the shaft-
lock engages and holds the shaft. Use the
standard equipment wrench to loosen nut
(counter-clockwise). Remove the old bit (if
there is one) insert the new bit as far as
possible, but not so far that the bit flutes
engage the collet (leave approximately 1/8"
of shank exposed). Re-engage the shaft-
lock and tighten the nut (clockwise) by hand
and then with the wrench until bit is held
securely.
DEPTH GUIDE ADJUSTMENT
Use the depth guide to adjust the depth of
cut. Simply loosen (counter clockwise) the
knob a little (approximately 1/8 turn) and
slide the depth guide in or out to the desired
depth of cut (about 1/8" greater than
material thickness) and retighten the knob
(clockwise).
-6-
INTAKE
AIR VENTS
EXHAUST
AIR VENTS
DEPTH GUIDE
BRACKET w/CLIC
DEPTH GUIDE
LOCKING KNOB
The bit flutes are sharp and
should be handled with