Bosch GBM 10 Original Instructions Manual page 17

OBJ_BUCH-804-002.book Page 17 Monday, March 9, 2009 8:34 AM
Replacing the Drill Chuck
For machines without spindle lock, the drill
chuck must be replaced through an authorized
after-sales service agent for Bosch power tools.
The drill chuck must be tightened with a
tightening torque of approx. 31–35 Nm.
Dust/Chip Extraction
Dusts from materials such as lead-containing
coatings, some wood types, minerals and
metal can be harmful to one's health. Touch-
ing or breathing-in the dusts can cause aller-
gic reactions and/or lead to respiratory infec-
tions of the user or bystanders.
Certain dusts, such as oak or beech dust, are
considered as carcinogenic, especially in
connection with wood-treatment additives
(chromate, wood preservative). Materials
containing asbestos may only be worked by
specialists.
– Provide for good ventilation of the work-
ing place.
– It is recommended to wear a P2 filter-
class respirator.
Observe the relevant regulations in your
country for the materials to be worked.
Operation
Starting Operation
Observe correct mains voltage! The voltage
of the power source must agree with the
voltage specified on the nameplate of the
machine. Power tools marked with 230 V
can also be operated with 220 V.
Reversing the Rotational Direction
(GBM 10 RE) (see figure C)
The rotational direction switch 7 is used to re-
verse the rotational direction of the machine.
However, this is not possible with the On/Off
switch 6 actuated.
Right Rotation: For drilling and driving in
screws, push the rotational direction switch 7
left to the stop.
Bosch Power Tools
Left Rotation: For loosening and unscrewing
screws and nuts, press the rotational direction
switch 7 through to the right stop.
Switching On and Off
To start the machine, press the On/Off switch 6
and keep it pressed.
To lock the pressed On/Off switch 6, press the
lock-on button 5.
To switch off the machine, release the On/Off
switch 6 or when it is locked with the lock-on
button 5, briefly press the On/Off switch 6 and
then release it.
Adjusting the Speed (GBM 10 RE)
The speed of the switched on power tool can be
variably adjusted, depending on how far the
On/Off switch 6 is pressed.
Light pressure on the On/Off switch 6 results in
a low rotational speed. Further pressure on the
switch results in an increase in speed.
Working Advice
Apply the power tool to the screw/nut only
when it is switched off. Rotating tool inserts
can slip off.
For drilling in metal, use only perfectly sharp-
ened HSS drill bits (HSS=high-speed steel). The
appropriate quality is guaranteed by the Bosch
accessories program.
Twist drills from 2.5–10 mm can easily be
sharpened with the drill bit sharpener (see ac-
cessories).
We recommend the use of a drill stand (see ac-
cessories) for work where greater precision is
particularly required.
The machine vice, which is available as an acces-
sory, enables secure clamping of workpieces.
This prevents the workpiece from turning and
any accidents this would cause.
Belt Clip
With the belt clip 4, the machine can be hung
onto a belt. The user has both hands free and
the machine is always at hand.
English | 17
2 609 140 656 | (9.3.09)