Bosch Professional GBM 50-2 Original Instructions Manual page 23

Symbols and their meanings
WARNING! Ensure that the
safety strap is working prop-
erly before you use it. Never
use a safety strap if it is dam-
aged. Instead, replace it im-
mediately.
WARNING! The tool must
not be operated outside in
wet weather.
WARNING! If the beam of
the overload indicator lights
up close to this symbol, the
workload is very high. Re-
duce the workload or switch
the motor off, otherwise the
overload protection will be
activated and the motor will
be shut off automatically.
If the beam of the overload
indicator lights up close to
this symbol, the workload is
optimal and there is no
chance of an overload.
WARNING! Do not hold your
hand underneath the applic-
ation tool or the accessories
when you are changing
these.
WARNING! Before drilling,
ensure that the magnet
strength is sufficient. The
surface of the workpiece
must be level, clean and suf-
ficiently thick.
WARNING! When drilling
into vertical or diagonal sur-
faces or overhead, the power
tool must be secured with
the safety strap.
Product Description and
Specifications
Read all the safety and general instructions.
Failure to observe the safety and general in-
structions may result in electric shock, fire
and/or serious injury.
Please observe the illustrations at the beginning of this oper-
ating manual.
Intended Use
The power tool is suitable for drilling in magnetisable materi-
als (e.g. steel).
Bosch Power Tools
The power tool can be used horizontally, vertically and over-
head. Ensure that the workpiece clamping surface is level, is
at least equal to the footprint of the power tool and consists
of clean, magnetisable material at least 20 mm thick.
Product Features
The numbering of the product features refers to the diagram
of the power tool on the graphics page.
(1) Carbon brush cover
(2) Speed preselection thumbwheel
(3) Handle (insulated gripping surface)
(4) Crank handle (x 3)
(5) Crank hub
(6) Overload indicator
(7) Laser on/off switch
(8) Rotational direction switch
(9) Motor on/off switch
(10) Magnetic base
(11) Holder for safety strap
(12) Tool holder
(13) Opening for MT2 drill drift
(14) Indicator for carbon brush change
(15) Portable residual current device
(16) Portable residual current device indicator
(17) Rail for coolant tank holder
(18) Release button for gear selector switch
(19) Gear selector switch
(20) Magnet on/off switch
(21) Magnet strength indicator
(22) Adapter for annular cutter
a)
(23) Adapter for screw tap
a)
(24) Screw tap
(25) Hex key (3/4/6 mm)
(26) Pilot pin
a)
(27) Annular cutter
a)
(28) Twist drill bit MT2
a)
(29) Twist drill bit MT1
(30) Reduction sleeve (MT2/MT1)
(31) Twist drill bit with cylindrical shank
(32) Keyed chuck (up to a diameter of 16 mm)
a)
(33) Taper mandrel
(34) MT2 drill drift
(35) Coolant tank
(36) Coolant tank holder
(37) Coolant hose
(38) Connector for cooling system
(39) Valve for coolant
(40) Ratchet
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1 609 92A 7Y6 | (31.05.2022)