Bosch GSB 550-2 PROFESSIONAL Operating Instructions Manual page 5

2 609 140 164 - Buch Seite 2 Mittwoch, 14. Januar 2004 11:57 11
When working with the machine, always hold it
firmly with both hands and make sure you are
in a secure standing position.
Hold electric tools by their insulated han-
dles whenever they could possibly touch a
hidden wire or their own cords.
Touching a "live" wire can transfer the voltage
to the exposed metal parts of the tool and give
the operator an electric shock.
Use appropriate detectors to determine if
utility lines are hidden in the work area or
call the local utility company for assis-
tance.
Contact with electric lines can lead to fire and
electric shock. Damaging a gas line can lead
to explosion. Penetrating a water line causes
property damage or may cause an electric
shock.
A blocking of the drill will lead to a jerking reac-
tion of the tool. In this case, turn off the ma-
chine immediately.
Secure the workpiece. Clamping devices or a
vise will hold the workpiece in place better than
the hand.
Be careful when screwing in long screws, as
they can slide off.
Place the machine on the screw /nut only when
switched off.
Always switch the machine off and wait until it
has come to a standstill before placing it down.
Never allow children to use the machine.
Bosch can only guarantee a flawless function-
ing of the machine if the original accessories
intended for it are used.
Intended Use
The machine is intended for impact drilling in
brick, concrete and stone as well as for drilling in
wood, metal, ceramics and plastic. Machines with
electronic control and right/left rotation are also
suitable for screwing and thread cutting.
5 • 2 609 140 164 • TMS • 07.01.04
Auxiliary Handle/Depth Stop
(see figure
A
Operate the machine only with the auxiliary
handle 10.
The auxiliary handle can be mounted on the right
or left side of the spindle neck with the thumb-
screw 9 .
The drilling depth can be set with the depth
stop 11 .
For this purpose, press the button 8 and pull out
the depth stop parallel and to the same length as
the drill. Then subtract the desired drilling depth
from the value read from the scale (arrow) and
set the drilling depth X accordingly.
Inserting the Tool
Open the drill chuck 1 by turning until the tool can
be inserted. Insert the tool.
Keyless Chuck (0 601 14D 6..)
Hold the rear sleeve tight and firmly tighten the
front sleeve by hand, until the locking ac-
tion ("click") is no longer heard. The drill chuck is
locked automatically.
The locking is released again when the front col-
lar is turned in the opposite direction to remove
the tool.
Key Chuck
Using the chuck key 13 , tighten all three drillings
uniformly.
Caution with hot chuck:
During longer work processes, especially
when working with the impact drill, the chuck
can strongly heat up. In this case we recom-
mend the wearing of protective gloves.
Screwdriver Tools (Accessories)
When using screwdriver bits, a bit holder should
always be used. Use only the screwdriver bits
that fit the screw head.
For driving screws, position the selector switch 3
to the symbol "Drilling and Driving".
English - 2
)