Changing The Tool; Dust/Chip Extraction - Bosch GBM 13-2 RE Professional Original Instructions Manual

OBJ_BUCH-2291-004.book Page 15 Tuesday, June 23, 2015 11:54 AM
Afterwards, tighten the bottom part of the auxiliary handle 9
again by turning in clockwise direction.
The knurled surface of the depth stop 10 must face upward.

Changing the Tool

 Before any work on the machine itself, pull the mains
plug.
 Wear protective gloves when changing the tool. The
drill chuck can become very hot during longer work peri-
ods.
Keyless Chuck (see figure B)
Hold the rear sleeve 3 of the keyless chuck 1 tight and turn the
front sleeve 2 in rotation direction , until the tool can be in-
serted. Insert the tool.
Hold the rear sleeve 3 of the keyless chuck 1 tight and firmly
tighten the front sleeve 2 by hand in rotation direction , un-
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 13 by turning until the tool can
be inserted. Insert the tool.
Insert the chuck key 12 into the corresponding holes of the
key type drill chuck 13 and clamp the tool uniformly.
Keyless chuck with securing ring (see figure D)
– Turn the securing ring 19 toward "UNLOCK".
– Turn the clamping sleeve 18 clockwise until the tool bit
can be inserted.
– Fully insert the tool bit , hold it in the tool holder and turn
the clamping sleeve 18 anticlockwise firmly by hand to
tighten it.
Firmly hold the holding ring 20 when doing this.
– Turn the securing ring 19 toward "LOCK".
Note: When inserting drill bits with small diameters, set the
tool holder beforehand approximately to the drill bit diame-
ter. Otherwise, it is possible that the drill bit is not inserted
centred.
Removing
– Turn the securing ring 19 toward "UNLOCK".
– Turn the clamping sleeve 18 clockwise until the tool bit
can be removed.
Screwdriver Tools (see figure E)
When working with screwdriver bits 14, a universal bit holder
15 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 13 is se-
cured with a securing screw 16 against unintentional loosen-
ing from the drill spindle. Completely open the keyless chuck
Bosch Power Tools
1 or the key type drill chuck 13 and unscrew the securing
screw 16 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 F)
To dismount the key type drill chuck 13, position an open-end
spanner 17 (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 12 into one of the three holes of the key type
drill chuck 13 and loosen the key type drill chuck 13 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 12. Remove the chuck key 12 from the key type
drill chuck and completely unscrew it from the machine.
Dismounting the Keyless Chuck/Keyless Chuck with Se-
curing Ring
To dismount the keyless chuck 1 and the keyless chuck with
securing ring, clamp a hex key in the keyless chuck and posi-
tion an open-end spanner 17 (size 17) against the spanner
flats of the drive spindle. Place the machine on a firm surface,
e. g. a work bench. Hold the open-end spanner 17 tight and
loosen the keyless chuck by turning the hex key in anticlock-
wise direction. A tightly seated keyless chuck is loosened with
a light blow on the long shaft of the hex key . Remove the hex
key from the keyless chuck and completely unscrew the key-
less chuck from the machine.
Mounting the Drill Chuck
The keyless chuck/keyless chuck with securing ring/key type
drill chuck is mounted in reverse order.
The drill chuck must be tightened with a tightening
torque of approx. 50–55 Nm.
For keyless/key type drill chuck:
Screw securing screw 16 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.
English | 15
1 609 92A 1CG | (23.6.15)