Working Advice - Bosch GBH 2-23 REA Professional Notice Originale

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OBJ_BUCH-404-002.book Page 13 Friday, March 13, 2009 3:51 PM
To change the operating mode, press the re-
lease button 5 and turn the drilling/hammer
drilling selector switch 4 to the desired position
until it can be heard to latch.
Position for hammer drilling in
concrete or stone as well as for
chiselling (chiselling only with the
MV 200 accessory)
Position for drilling without impact
in wood, metal, ceramic and plastic
as well as for screwdriving
Reversing the Rotational Direction
The rotational direction switch 6 is used to re-
verse the rotational direction of the machine.
Actuate the rotational direction switch 6
only when the machine is at a standstill.
Right rotation: Turn the selector switch for
drilling/hammer drilling 6 on both sides to
the stop in the position
Left rotation: Turn the selector switch for
drilling/hammer drilling 6 on both sides to
the stop in the position
Set the direction of rotation for hammer drilling,
drilling and chiselling always to right rotation.
Switching On and Off
To start the machine, press the On/Off switch 8.
To lock the On/Off switch, keep it pressed and
additionally push the lock-on button 7.
To switch off the machine, release the On/Off
switch 8. When the On/Off switch 8 is locked,
press it first and then release it.
Setting the Speed/Impact Rate
The speed/impact rate of the switched on power
tool can be variably adjusted, depending on how
far the On/Off switch 8 is pressed.
Light pressure on the On/Off switch 8 results in
low speed/impact rate. Further pressure on the
switch increases the speed/impact rate.
Bosch Power Tools
Safety Clutch
If the tool insert becomes caught or
jammed, the drive to the drill spindle is in-
terrupted. Because of the forces that occur,
always hold the power tool firmly with both
hands and provide for a secure stance.
If the power tool jams, switch the machine
off and loosen the tool insert. When switch-
ing the machine on with the drilling tool
jammed, high reaction torques can occur.

Working Advice

Chiselling
For chiselling, a MV 200 SDS-plus chiselling
attachment (accessory), which is inserted into
the SDS-plus tool holder 1, is required.
The dust extraction 14 may not be mounted for
chiselling.
Inserting Screwdriver Bits (see figure M)
.
Apply the power tool to the screw/nut only
when it is switched off. Rotating tool inserts
can slip off.
.
To work with screwdriver bits, a universal bit
holder 31 with SDS-plus shank (accessory) is
required.
The dust extraction 14 may not be mounted for
screwdriving.
Clean the shank end of the adapter shank and
apply a light coat of grease.
Insert the universal bit holder with a turning
motion into the tool holder until it automatically
locks.
Check the locking effect by pulling the universal
bit holder.
Insert a screwdriver bit into the universal bit
holder. Use only screwdriver bits that match the
screw head.
To remove the universal bit holder, pull the lock-
ing sleeve 3 toward the rear and remove the uni-
versal bit holder 31 out of the tool holder.
English | 13
1 619 P07 080 | (13.3.09)