Bosch GBH 3-28 E Manual De Instrucciones página 12

EURO • Printed in Germany • BA 1 619 929 474 • GBH 3-28 E • GB • OSW 02/01
GBH 3-28 (474) - Buch Seite 3 Donnerstag, 8. Februar 2001 8:35 08
Auxiliary Handle/Depth Stop
Use the machine only with the auxiliary
handle 5.
Loosen the handle by turning to the left. Rotate
the auxiliary handle 5 and adapt to the working
position.
Firmly retighten the handle.
The drilling depth can be set with the depth
stop 6.
The ribbing on depth stop 6 must point upwards.
Mode Selector Switch
Operate the mode selector switch 3 only at
a standstill.
Set the mode selector switch 3 to the desired po-
sition.
Hammer drilling
Drilling
Overload Clutch
If the drill becomes caught or jammed, the
drive to the drill spindle is interrupted.
Because of the forces that occur as a re-
sult, always hold the machine securely with
both hands and take a firm stance.
1 619 929 474 • TMS • 05.02.01
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.
Keep the tool holder clean at all times.
Change the dust protection cap
A damaged dust protection cap should be
changed immediately. We recommend having
this carried out by an after-sales service.
Lubrication
The machine is lubricated with oil. An oil-change
should take place regularly and is carried out by
an authorised after-sales service centre for
Bosch power tools in the course of maintenance
and repair. It is mandatory to use the oil type
specified by Bosch.
If the machine should fail despite the rigorous
manufacturing and testing procedures, repair
should be carried out by an authorised 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.
The wires in the cable are coloured according to
the following code:
strain relief
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
To be fitted
by qualified
professional only