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OBJ_BUCH-909-001.book Page 22 Wednesday, February 4, 2009 7:50 AM
22 | English
Assembly
Before any work on the machine itself, pull
the mains plug.
Auxiliary Handle (see figure A)
Operate your machine only with the auxilia-
ry handle 12.
The auxiliary handle 12 can be set in 12 posi-
tions to achieve a safe and low-fatigue working
stance.
Turn the bottom part of the auxiliary handle 12
in rotation direction
and push the auxiliary
handle 12 forward until you can pivot it to the
desired position. Then pull the auxiliary handle
12 back again and tighten it by turning the bot-
tom part of the auxiliary handle in rotation direc-
tion
.
Adjusting the Drilling Depth (see figure A)
The required drilling depth X can be set with the
depth stop 13.
Press the button for the depth stop adjustment
11 and insert the depth stop into the auxiliary
handle 12.
Pull out the depth stop until the distance be-
tween the tip of the drill bit and the tip of the
depth stop correspond with the desired drilling
depth X.
The knurled surface of the depth stop 13 must
face upward.
Changing the Tool
Wear protective gloves when changing the
tool. The drill chuck can become very hot
during longer work periods.
Keyless Chuck (see figure B)
The drill spindle is locked when the On/Off
switch 8 is not pressed. This makes quick, con-
venient and easy changing of the tool in the drill
chuck possible.
Open the keyless chuck 1 by turning in rotation
direction
, until the tool can be inserted. Insert
the tool.
2 609 932 659 | (4.2.09)
Firmly tighten the collar of the keyless chuck 1
by hand in rotation direction
action ("click") is no longer heard. This automat-
ically locks the chuck.
The locking is released again to remove the tool
when the collar is turned in the opposite direc-
tion.
Key Type Drill Chuck (see figure C)
Open the key type drill chuck 15 by turning until
the tool can be inserted. Insert the tool.
Insert the chuck key 14 into the corresponding
holes of the key type drill chuck 15 and clamp
the tool uniformly.
Screwdriver Tools (see figure D)
When working with screwdriver bits 16, a uni-
versal bit holder 17 should always be used. Use
only screwdriver bits that fit the screw head.
For driving screws, always position the "Drill-
ing/Impact Drilling" selector switch 2 to the
"Drilling" symbol.
Replacing the Drill Chuck
For power tools without spindle lock, the
drill chuck must be replaced by an author-
ised after-sales service agent for Bosch
power tools.
Removing the Drill Chuck (see figure E)
Disassemble the auxiliary handle and set the
gear selector 10 to the centre position between
the 1st and 2nd gear.
Insert a steel pin with a diameter of Ø 4 mm and
approx. 50 mm of length into the drill hole on
the spindle neck in order to lock the drill spin-
dle.
Clamp the short end of an Allen key 18 into the
keyless chuck 1.
Place the machine on a stable surface (e. g. a
workbench). Hold the machine firmly and loos-
en the keyless chuck 1 by turning the Allen key
18 in rotation direction
. Loosen a tight-seated
keyless chuck by giving the long end of the Allen
key 18 a light blow. Remove the Allen key from
the keyless chuck and completely unscrew the
keyless chuck.
until the locking
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