Bosch 11247 - Manual (Page 7)

INSTALLING ACCESSORIES
Clean the insert shank end of the accessory
to remove any debris, then lightly grease with
a light oil or lubricant.
(Model 11240 only)
Pull and hold locking sleeve backward. Insert
accessory into the tool holder through the
dust shield, while twisting and pushing inward
until it sets into place. Release locking sleeve
to lock bit in place. Pull outward on the
accessory to be certain it is locked into the
tool holder (fig. 2).
(Model 11247 only)
Insert accessory into the tool holder, while
twisting and pushing inward until it locks
automatically into place (Fig. 3).
To install hex round chisels, align flat on chisel
with alignment mark on tool holder, then push
chisel into tool holder until it lock automatically
into place. Pull outward on the accessory to
be certain it is locked into the tool holder
(Fig. 3).
REMOVING ACCESSORIES
Accessories may be hot after
use. Avoid contact with skin
and use proper protective gloves or cloth to
remove.
To remove an accessory, pull and hold
locking sleeve backward and pull bit forward.
All accessories should be wiped clean after
removing.
NOTE: The high efficiency available from the
rotary hammers can only be obtained if sharp
and undamaged accessories are used. The
"cost" to maintain sharp and undamaged
accessories is more than offset by the "time
saved" in operating the tool with sharp
accessories.
-7-
! WARNING
LOCKING
SLEEVE
FIG. 2
FIG. 3
LOCKING
SLEEVE
ALIGNMENT
MARK
FLAT
HEX ROUND CHISEL
TRIGGER "ON-OFF" SWITCH
To turn the tool “ON” squeeze the trigger
switch. To turn the tool “OFF”, release the
trigger switch, which is spring loaded and will
return to the “OFF” position automatically.
To increase switch life, do not turn switch on
and off while tool is under load.
SELECTOR LEVER
The selector lever allows the tool to be set
for various applications as listed in the
following chart, (Fig. 4).
When using demolition or chipping bits such
as bull points, chisels, spades, gouges, etc.
the “Hammer Only” mode must be selected.
SELECTOR LEVER - “VARIO-LOCK”
The vario-lock can be set in any one of twelve
positions (30˚ increments). Choose a position
which is best suited for your operation. The
Vario-Lock position is intended for use with
chipping bits such as bull points, spades,
gouges, etc.
Turn the selector lever, to the “vario-lock”
setting. Next, rotate the locking sleeve,
along with the accessory, to the desired
position. Then turn the selector lever to the
“hammer only” setting and slightly turn the
locking sleeve to have it automatically lock
into a definite position.
Operating Instructions
BM 1619929519 12/02 12/10/02 2:52 PM Page 7