BTI PROFILINE -BH 4-32 ME Manual Original página 30

Removing Drilling Tools without SDS-plus
(see figure E)
Firmly hold the retaining ring of the quick change key-
less chuck 12. Open the quick change keyless chuck
by turning the front sleeve in the direction of the symbol
" ".
Remove the drilling tool.
Dust Extraction with the Dust Extrac-
tion Attachment (Accessory)
Mounting the Dust Extraction Attachment
(see figure F)
For dust extraction, the dust extraction attachment
(accessory) is required. When drilling, the dust extrac-
tion attachment retracts so that the attachment head is
always close to the surface at the drill hole.
Press the button for depth stop adjustment 9 and
remove the depth stop 11. Press button 9 again and
insert the dust extraction attachment into the auxiliary
handle 10 from the front.
Connect an extraction hose (diameter 19 mm, acces-
sory) to the extraction sleeve 15 of the dust extraction
attachment.
The vacuum cleaner must be suitable for the material
being worked.
When vacuuming dry dust that is especially detrimental
to health or carcinogenic, use a special vacuum
cleaner.
Adjusting the Drilling Depth on the Dust Extrac-
tion Attachment (see figure G)
The required drilling depth X can also be adjusted
when the dust extraction attachment is mounted.
Insert the SDS-plus drilling tool to the stop into the
SDS-plus tool holder 1. Otherwise, the movability of the
SDS-plus drilling tool can lead to incorrect adjustment
of the drilling depth.
Loosen the wing bolt 19 on the dust extraction attach-
ment.
Without switching the power tool on, apply it firmly to
the drilling location. The SDS-plus drilling tool must
face against the surface.
Position the the guide pipe 20 of the dust extraction
attachment in its holding fixture in such a manner that
the head of the dust extraction attachment faces
against the surface to be drilled. Do not slide the guide
pipe 20 further over the telescopic pipe 18 of the dust
extraction attachment than required, so that as much as
possible of the scale 18 on the telescopic pipe remains
visible.
Retighten the wing bolt 19 again. Loosen the clamping
screw 16 on the depth stop of the dust extraction
attachment.
30 | English
Move the depth stop 17 on the telescopic pipe 18 in
such a manner that the clearance X shown in the figure
corresponds with the required drilling depth.
Tighten the clamping screw 16 in this position.
Operation
Starting Operation
Observe correct mains voltage! The voltage of
the power 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.
Setting the Operating Mode
The operating mode of the power tool is selected with
the mode selector switch 5.
Note: Change the operating mode only when the
machine is switched off! Otherwise, the machine can
be damaged.
Turn the mode selector switch 5 to the requested posi-
tion.
Reversing the Rotational Direction
Actuate the rotational direction switch 8 only
when the machine is at a standstill.
The rotational direction switch 8 is used to reverse the
rotational direction of the machine.
Position for drilling without
impact in wood, metal, ceramic
and plastic as well as for
screwdriving and thread cut-
ting
Position for hammer drilling
in concrete or stone
When the drilling tool does not
immediately rotate upon
switching on, allow the
machine to run slowly until the
drilling tool rotates.
Vario-Lock position for adjust-
ment of the chiselling position
Position for chiselling
1 619 929 846 • 18.6.08