Bosch 11227E Instrucciones De Funcionamiento Y Seguridad página 7

BM 2610968978 8/01 8/22/01
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.
ELECTRONIC FEEDBACK CIRCUITRY
(EFC)
The internal electronic feedback system
provides a "soft start", which will reduce the
stresses that occur from a high torque start.
The system also helps to keep the pre-
selected impact rate and rotating speed
virtually constant between no-load and load
conditions.
INSTALLING ACCESSORIES
Clean the insert shank end of the accessory
to remove any debris, then lightly grease with
a light oil or lubricant.
Insert accessory into the tool holder through
the dust shield, while twisting and pushing
inward until it locks automatically into place.
Pull outward on the accessory to be certain it
is locked into the tool holder (fig. 2).
NOTE: The high efficiency available from the
rotary hammers can only be obtained if sharp
SELECTOR LEVER
The selector lever allows the tool to be set
for various applications as listed in the
following chart, (Fig. 3).
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
Drilling/Hammering:
used for drilling with solid
carbide bits and core bits
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Operating Instructions
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.
REMOVING ACCESSORIES
WARNING
!
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.
LOCKING SLEEVE
Vario-Lock position is intended for use with
chipping bits such as bull points, spades,
gouges, etc.
Depress release button and 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.
FIG. 3
Vario-Lock:
allows chisel to be set in one of 12
positions (right or left "0" position)
O
-7-
Accessories may be hot
after use. Avoid contact
FIG. 2
Hammering Only:
used for chipping
and demolition work