Dust/Chip Extraction; Starting Operation - Bosch GBM 10-2 RE Professional Manual Original

OBJ_BUCH-321-004.book Page 15 Monday, May 5, 2014 9:30 AM
til the locking action (click) is heard. The drill chuck is locked
automatically.
The locking is released again to remove the tool when the
front sleeve 2 is turned in the opposite direction.
Key Type Drill Chuck (see figure C)
Open the key type drill chuck 14 by turning until the tool can
be inserted. Insert the tool.
Insert the chuck key 13 into the corresponding holes of the
key type drill chuck 14 and clamp the tool uniformly.
Screwdriver Tools (see figure D)
When working with screwdriver bits 15, a universal bit holder
16 should always be used. Use only screwdriver bits that fit
the screw head.
Replacing the Drill Chuck
 Before any work on the machine itself, pull the mains
plug.
Removing the Securing Screw
The keyless chuck 1 as well as the key type drill chuck 14 is se-
cured with a securing screw 17 against unintentional loosen-
ing from the drill spindle. Completely open the keyless chuck
1 or the key type drill chuck 14 and unscrew the securing
screw 17 in clockwise direction. Please note that the secur-
ing screw has a left-hand thread.
If the securing screw 17 is seated tightly, apply a screwdriver
to the screw head and loosen the securing screw by giving a
blow onto the handle of the screwdriver.
Dismounting the Key Type Drill Chuck (see figure E)
To dismount the key type drill chuck 14, position an open-end
spanner 18 (size 17 mm) against the spanner flats of the
drive spindle.
Place the machine on a firm surface, e. g. a work bench. Insert
the chuck key 13 into one of the three holes of the key type
drill chuck 14 and loosen the key type drill chuck 14 with this
lever by turning in anticlockwise direction. A tightly seated
key type drill chuck is is loosened with a light blow on the
chuck key 13. Remove the chuck key 13 from the key type
drill chuck and completely unscrew it from the machine.
Dismounting the Keyless Chuck
To remove the keyless chuck 1, clamp an Allen key into the
keyless chuck 1 and position the open-end wrench 18
(size 17) against the spanner flats of the drive spindle. Place
the machine on a firm surface, e.g. a workbench. Hold the
open-end wrench 18 firmly and loosen the keyless chuck 1 by
turning the Allen key in anticlockwise direction. A tightly sit-
ting keyless chuck is loosened with a light blow onto the long
end of the Allen key. Remove the Allen key from the keyless
chuck and completely unscrew it from the machine.
Mounting the Drill Chuck
The keyless chuck/key type drill chuck is mounted in reverse
order.
The drill chuck must be tightened with a tightening
torque of approx. 15 Nm.
Bosch Power Tools
Screw securing screw 17 in anticlockwise direction into the
open keyless/key type drill chuck. Always use a new securing
screw, as the thread-locking compound on its thread loses its
effect after multiple usage.

Dust/Chip Extraction

 Dusts from materials such as lead-containing coatings,
some wood types, minerals and metal can be harmful to
one's health. Touching or breathing-in the dusts can cause
allergic reactions and/or lead to respiratory infections of
the user or bystanders.
Certain dusts, such as oak or beech dust, are considered
as carcinogenic, especially in connection with wood-treat-
ment additives (chromate, wood preservative). Materials
containing asbestos may only be worked by specialists.
– Provide for good ventilation of the working place.
– It is recommended to wear a P2 filter-class respirator.
Observe the relevant regulations in your country for the mate-
rials to be worked.
 Prevent dust accumulation at the workplace. Dusts can
easily ignite.
Operation

Starting Operation

 Observe correct mains voltage! The voltage of the pow-
er 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 10-2 RE/GBM 13-2 RE)
The rotational direction switch 7 is used to reverse the rota-
tional direction of the machine. However, this is not possible
with the On/Off switch 6 actuated.
Right rotation: Press the rotational direction switch 7
through to the right stop (for drilling and driving screws).
Left rotation: Press the rotational direction switch 7 through
to the left stop (for loosening and unscrewing screws and
nuts).
Gear selection, mechanical
 The gear selector 8 can be actuated at standstill or
when the machine is running. However, this should not
be done while operating at full load or maximum speed.
Two speed ranges can be preselected with the gear selector
8.
Gear I:
Low speed range; for working with large drilling diameter or
for driving in screws.
Gear II:
High speed range; for working with small drilling diameter.
If the gear selector 8 cannot be fully engaged, lightly rotate
the drive spindle with the drill bit by twisting the drill chuck.
Preselecting the Speed (GBM 10-2 RE/GBM 13-2 RE)
The required speed can be preselected with the thumbwheel
5 (also while running).
English | 15
2 609 932 946 | (5.5.14)