Milling; Drilling; Change Rotating Tools (Milling Cutter, Drill, Grinder, Scraper); Locking Of A Scraping Tool - Determining The Position - bredent BF 2 Manuel D'utilisation Et D'entretien

5.4 Milling

 Open the set screws (2 and 4) and the locking lever (5) so that the milling arm and milling spindle are freely
mobile. The lever (3) is pulled to the right from the lock position, so that the milling spindle is freely mobile.
 Set the knob (9) to the recommended working speed of the milling cutter.
 When milling a bar, secure the model to the modelling table (18) using the model support (17) so that the
milling arm and the bar are parallel to one another. Tighten the locking lever for twisting (5) and remove the
set screw for the horizontal movement (4).
 Set the knob (9) to the recommended working speed of the milling cutter.

5.5 Drilling

 Determine the desired drilling direction on the workpiece and close the set screws (2 and 4) and locki ever
(5).
 Determine the depth of the drill hole using the micrometer screw (1). If only the top screw is turned, the
micrometer screw will no longer be rotated further once the depth stop has been reached. This guarantees
the precise adjustment of the drill hole depth. The depth stop lever (3) is pushed to the left until the milling
spindle can be moved down using the lever.
 Set the knob (9) to the recommended working speed of the milling cutter.
 Use a small amount of pressure to press the milling spindle depth stop lever (3) down.

5.6 Change rotating tools (milling cutter, drill, grinder, scraper)

 Turn the collet lever (15) clockwise as far as the stop and insert the tool.
 Turn the collet lever (15) anticlockwise as far as the stop and tighten the tool.
CAUTION
Tools must only be changed once the motor has been switched off!

5.7 Locking of a scraping tool - determining the position

 By turning the collet lever (15) clockwise (= approx. halfway), the milling spindle drive can be locked, which
means that the tool remains firmly clamped.

5.8 Changing the collet/chuck

 Turn the collet lever (15) clockwise as far as the stop
 Open the set screw of the milling spindle (14)
 Remove the milling spindle (16) from the receptacle
 Completely remove the cable connection (30) of the milling spindle from it
• Use the collet key (B) to turn the chuck (29) in an anticlockwise direction, jerkily at first,
completely unscrew it and remove it from the handle (28); if necessary hold with the counter wrench
(C) in the driver (moving end) (31) of the motor drive.
• Lightly grease the outside of the removed chuck (29) and insert the spindle. Use the previously
described keys to screw the chuck (29) into the handle (28) in a clockwise direction until the end stop and
tighten slightly.
CAUTION
Clean handle (28), collet and shaft for driver (31) thoroughly beforehand to avoid any potential runout
(concentricity error)!
 Attach and tighten the milling spindle and cable connection (30).
 Insert the milling spindle into the holder and tighten the set screw (14)
bredent GmbH & Co. KG · Weissenhorner Str. 2 · 89250 Senden · Germany · T: +49 7309 872-22 · F: +49 7309 872-24
www.bredent.com · @: info@bredent.com
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