wurth BM 13-XE Instructions Manual page 12

BM_SB 13-XE.book Seite 12 Montag, 12. April 2010 3:27 15
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Only than can the tool itself be chucked by vigo-
rously turning the sleeve in the "
tion (it engages audibly with a grating noise (pos.
)).
When the chuck is opened with a strong jerk
as far as it will go, it is possible that it can' t be
closed anymore. Instead, "grating" can be felt
(as if the chuck were overtightened). In this
case turn the sleeve once more in the "AUF,
RELEASE " direction; now it can be closed
again.
Remove the tool
Open the chuck by turning the sleeve in the "AUF,
RELEASE " direction.
Due to the automatic spindle lock the chuck cannot
be turned when the machine is idle.
Therefore the chuck can be opened with one hand
without steadying.
When turning the sleeve the chucking power reten-
tion is released, after 1/4 turn the clamping jaws
open and release the clamped tool.
In case of strong tension at the chuck steady the
chuck head with a fork wrench 16 and loosen the
sleeve by hand with a strong jerk.
Initial Operation
Always use the correct supply voltage: The power
supply voltage must match the information quoted
on the tool identification plate.
Mounting the Auxiliary Handle and the
Mains Cable Module
Substantial torque reactions are possible when lar-
ger drill bits are being used. Here the auxiliary grip
provides extra safety. Auxiliary grip 12 is attached
to spindle collar 2.
By pressing button 11 and moving the depth stop 9,
the requested drilling depth can be adjusted.
12
9
Connect the mains cable module 7 to the handle.
The plug must latch.
GRIP,ZU" direc-
Switching on and off
Intermittant use:
Switching on: Press trigger switch 8.
Switching off: Release trigger switch 8.
Continuous use:
Switching on: Press the on-off switch 8 and then
Switching off: Press the on-off switch 8 and then
Continuously Variable Speed Control
The speed can be infinitely varied by pressure on the
on-off switch 8.
RPM Preselection (electronic - BM 13-XE)
The desired rotational speed* can be preselected
with the thumbwheel 13 (also possible during ope-
ration).
1
-1
min
1st gear
2nd gear
*Approximate values
the locking button 6, after that
release on-off switch.
release.
A B C D
340 440 530 640
900 1220 1500 1760 2020 2500
11
7
E F
720 900