Bosch GBM 10 Instrucciones De Servicio página 15

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Speed Preselection
(GBM 10-2 RE/GBM 13-2 RE)
The required speed can be preselected with the
thumbwheel 4 (also while running).
Drilling and Screwdriving
(GBM 10 SRE)
Switching from the permanent and the pressure-
dependent connection between drive and drill
spindle is possible with the selector switch 16.
Applying specific pressure with the machine will
result in an engaging of the drill spindle:
Drilling
Push selector switch 16 to the right.
The drill spindle is permanently connected to the
drive.
Suitable for drilling as well as for individual screw-
driving without screw depth stop 17.
Screwdriving
Push selector switch 16 to the left.
The drill spindle engages after applying feed
pressure.
Suitable for continuous driving of screws with the
same driving depths in conjunction with the depth
stop as well as for individual screwdriving with-
out the depth stop:
The driving procedure begins with sufficient high
feed pressure.
The selector switch 16 engages noticeably and
can be actuated with the machine running.
Note: When actuating the selector switch 16 it is
possible that the switch jams or can not be
switched in certain positions of the drill spindle.
Slightly rotate the drill spindle by hand or briefly
press the On/Off switch 5, then actuate the se-
lector switch 16 again.
Screwdriving with the Screw Depth Stop
(see figure
)
E
Completely remove the chuck together with the
quick-change adapter 19. Insert bit (25 mm).
Push on the screw depth stop 17 to the stop. Ad-
just the driving depth by rotating the magnetic
ring:
Clockwise
= Increased screwing depth
Counter-clockwise = Decreased screwing depth
15 • 2 609 932 285 • TMS • 31.01.03
Replacing the Drill Chuck
(see figure
Removing locking screw
(GBM 10 RE/GBM 10 SRE/
GBM 10-2 RE/GBM 13-2 RE)
The locking screw 18 secures the drill chuck
against loosening from the drill spindle. Fully
open the chuck and completely unscrew the lock-
ing screw 18 (Note: left-handed thread!).
If the locking screw is very tight, apply the screw-
driver to the head of the screw and loosen it by
giving the screwdriver handle a sharp knock.
Unscrewing the chuck
Key Chuck
GBM 10-2 RE/GBM 13-2/GBM 13-2 RE: To un-
screw key chuck 13, position the open-end span-
ner (size 17 mm) against the spanner flats.
Insert the chuck key into one of the three bores,
using it as a lever to loosen the drill chuck by turn-
ing in counterclockwise direction against the
spanner. A seized drill chuck is loosened with a
light blow on the chuck key.
Key Chuck (GBM 10 SRE – see figure
To remove the key chuck hold the quick-change
adapter 19 firmly. Insert the chuck key 12 into
one of the three holes and use as a lever to
loosen the chuck by turning in counterclockwise
direction. A tight seated key chuck is loosened
with a light blow on the chuck key 12.
Keyless Chuck
Insert hexagonal tool (Allen key or screwdriver
bit) into the chuck and clamp the free end in a
vice. Position open-end spanner on key face of
drill spindle and loosen chuck in an anti-clock-
wise direction, as if loosening a screw.
Keyless Chuck (GBM 10 SRE)
Insert a hexagon tool (hexagon key or driving bit)
into the chuck and clamp the free end into a vice.
Loosen the keyless chuck by rotating the quick-
change adapter 19 in counterclockwise direction
and remove.
The drill chuck is mounted in reverse order.
The chuck must be tightened with a
torque of approx. 15 Nm.
English - 4
)
F
G
)

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Gbm 10 reGbm 10 sreGbm 10-2 re gbm 13-2Gbm 13-2 re

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