Initial Operation; Maintenance And Cleaning; Switching On And Off - Bosch GGS 1212 PROFESSIONAL Instrucciones De Servicio

3 609 929 798 - Buch Seite 3 Donnerstag, 4. September 2003 2:54 14

Initial Operation

Observe correct mains voltage: The voltage of
the power source must agree with the voltage
specified on the nameplate of the machine.
Equipment marked with 230 V can also be con-
nected to 220 V.

Switching On and Off

To start the machine, push the On/Off switch 5
forwards.
To lock-on, press the On/Off switch 5 down at
the front until it engages.
To switch off the machine, release the On/Off
switch 5 or press the rear tip of it down.
Speed Preselection
(GGS 7 C/27 LC)
Select the required speed with the thumb wheel 6
according to the Table (guideline).
Position Rotational Speed (rpm)
GGS 7 C
1 3 100
2 4 150
3 5 450
4 6 200
5 6 700
6 7 000
The required speed is dependent on the material
and can be determined by practical testing.
Constant electronic control holds the speed con-
stant at no-load and under load, and ensures uni-
form working performance.
Operating Instructions
Optimum grinding results are achieved when
the grinding tool is moved uniformly back and
forth with light pressure.
Pressure that is too strong reduces the per-
formance capability of the machine and
causes the grinding tool to wear more quickly.
Do not continue to use out-of-round grinding
tools. Dress with a dressing stone (accessory)
or replace.
10 • 3 609 929 798 • TMS • 01.09.03

Maintenance and Cleaning

Before any work on the machine itself, pull
the mains plug.
For safe and proper working, always keep
the machine and the ventilation slots clean.
In extreme working conditions, conductive
dust can accumulate in the interior of the
machine when working with metal. The
protective insulation of the machine can be
degraded. The use of a stationary extrac-
tion system is recommended in such cases
as well as frequently blowing out the venti-
lation slots and installing a residual current
device (RCD).
If the machine should fail despite the care taken
in manufacturing and testing procedures, repair
should be carried out by an after-sales service
centre for Bosch power tools.
In all correspondence and spare parts orders,
please always include the 10-digit order number
given on the nameplate of the machine.
WARNING! Important instructions for con-
necting a new 3-pin plug to the 2-wire cable.
GGS 27 LC
12 000
The wires in the cable are coloured according to
16 000
the following code:
21 000
24 000
26 000
27 000
live = brown
neutral = blue
Do not connect the blue or brown wire to the
earth terminal of the plug.
Important: If for any reason the moulded plug is
removed from the cable of this machine, it must
be disposed of safely.
English - 3
strain relief
To be fitted
by qualified
professional only