Tool Specifications; For Your Safety; Intended Use; Machine Elements - Bosch GBH 4-top Operating Instructions Manual

EURO • Printed in Germany • BA 1 619 929 461 • GBH 4-top • GB • OSW 11/00
1 619 929 461 - D.book Seite 1 Mittwoch, 8. November 2000 3:18 15

Tool Specifications

Rotary Hammer
Part number
Rated power
Output power
Rated speed
Impact rate
Impact energy per stroke
Chisel positions
Chiselling performance in
concrete of medium hardness
Tool holder
Spindle neck diameter
Drilling output:
- Concrete (Twist drill bit)
- Masonry (core bit)
- Wood
- Steel
Weight (without optional extras)
approx.
Safety class

Intended Use

The machine is intended for hammer drilling in
concrete, brick and stone as well as for light chis-
elling work. It is also suitable for drilling without
impact in wood, metal, ceramic and plastic.

Machine Elements

1 Dust protection cap
2 Locking sleeve
3 On/Off switch
4 Mode selector switch
5 Release button
6 Auxiliary handle
7 Depth stop
8 Quick clamping drill chuck*
* Optional extra
* Not all of the accessories illustrated or described are
included as standard delivery.
1 619 929 461 • TMS • 30.10.00
GBH 4 - top
0 611 243 7..
750 W
440 W
0 – 650 RPM
0 – 3900/min
3.5 J
36
18 kg/h
SDS-top
Ø 51 mm
max. 30 mm
max. 80 mm
max. 30 mm
max. 13 mm
For long hair, wear hair protection. Work only
4.1 kg
with closely fitting clothes.
/ II
During pauses in the work, when not in use or
during work on the machine itself (e. g. chang-
ing the working tools, repairs, cleaning, adjust-
ment), pull the mains plug.
Always direct the cable to the rear away from
the machine.
Do not carry or hang up the machine by the ca-
ble.
Insert the mains plug only when the machine is
switched off.
Always switch off the machine and allow to
come to a stop before placing it down.
Use the machine only with the auxiliary han-
dle 6.
When working with the machine, always hold it
firmly with both hands and provide for a secure
stance.
Connect machines that are used in the open
via a residual current device (RCD) with an ac-
tuating current of 30 mA maximum. Use only
extension cables that are approved for outdoor
use.
Never allow children to use the machine.
Bosch is only able to ensure perfect function-
ing of the machine if the original accessories
intended for it are used.
In addition, the general safety notes in the
safety notes section must be observed.
English - 1

For Your Safety

Working safely with this ma-
chine is possible only when the
operating and safety information
are read completely and the in-
structions contained therein are
strictly followed. Before using
for the first time, ask for a practi-
cal demonstration.
If the mains cable is damaged or
cut through while working, do not
touch the cable but immediately
pull the mains plug. Never use the
machine with a damaged cable.
Wear ear protection.
Wear safety glasses, protective
gloves and sturdy shoes.