Putting Into Operation - Bosch GBH 2 PROFI Instrucciones De Servicio

Use suitable detectors to find hidden utility
s
lines or call the local utility company for as-
sistance. Contact with electric lines can lead to
fire or electrical shock. Damaging a gas line can re-
sult in an explosion. Penetrating a water pipe will
cause property damage or an electrical shock.
Operate the machine only with the auxiliary handle 9.
s
Place the machine on the nut/screw only when
s
switched off.
Be careful when screwing in long screws; danger
s
of sliding off.
When working with the machine, always hold it
s
firmly with both hands and provide for a secure
stance.
Secure the workpiece. A workpiece clamped
s
with clamping devices or in a vice is held more se-
cure than by hand.
Always switch the machine off and wait until it has
s
come to a standstill before placing it down.
Never allow children to use the machine.
s
Bosch is able to ensure flawless functioning of the
s
machine only if the original accessories intended
for it are used.
Tool Changing (Fig. E–I)
Take care that the dust protection cap 2 is not
damaged when changing tools.
SDS-Plus Tools
The SDS-plus tool is designed to be freely movable.
This causes eccentricity when the machine is off-load.
However, the drill automatically centres itself during
operation. This does not affect drilling precision.
Inserting (Fig. )
E
Clean and lightly oil the tool before inserting.
Insert the dust-free tool into the tool holder 1 with
twisting until it latches.
The tool locks itself. Check the locking by pulling on
the tool.
Removing (Fig. )
F
Pull the locking sleeve 3 to the rear (a) and hold while
removing the tool (b).
1 619 929 623 • (03.05) T
Tools without SDS-plus
Do not use tools without SDS-plus for hammer
drilling or chiselling!
To work with tools without SDS-plus (e.g., drills with
cylindrical shafts), a drill chuck 11 with a SDS-plus
chuck shaft 12 (optional accessory) must be inserted
into the tool holder (Fig.
Insert the dust-free, assembled chuck into the tool
holder 1 with twisting until it latches (Fig.
The chuck locks itself. Check the locking by pulling on
the chuck.
Srewdriver Bits (Fig.
For screwdriver bits, use the SDS-plus adapter 13 (op-
tional accessory).
System Accessories
Refer to the Bosch Catalogue for insertion tools.

Putting into Operation

Ensure that the mains voltage is correct!
The voltage of the power source must agree with the
value given on the nameplate of the machine. Ma-
chines designated for 230 V can also be operated with
220 V.
Switching On/Off
To switch on the machine, press the on/off switch 5.
Lock the depressed on/off switch 5 by pressing the
lock-on button 4.
To switch off the machine, release the on/off switch
5 or push and then release it.
Working Instructions (Fig. K–M)
Auxiliary Handle (Fig.
Operate the machine only with the auxiliary handle 9.
s
By rotating the auxiliary handle 9 to a comfortable posi-
tion, a fatigue-free and therefore safe working position
can be achieved.
Loosen the auxiliary handle 9 by turning counter clock-
wise and swing it to the desired position. Then retight-
en the auxiliary handle 9 by turning in the clockwise di-
rection.
Overload Clutch
If the drill bit becomes jammed or caught, the drive to
the drill spindle is interrupted. Because of the forces
that occur as a result, always hold the machine se-
curely with both hands and take a firm stance.
English–2
).
G
).
H
)
I
)
K