GF d160 Betriebsanleitung Seite 36

GB USA Working with the core cutter
Fig. 4
2. Drill the centre hole by using slow feed motions, see Fig. 4
Fig. 5
3. For the drilling through pipe walls:
Move centre drill up an down several times to remove the chips, see Fig. 5
4. Drill a hole.
For the chip removal: During the drilling process, pull the rotating core cutter
out of the drill hole in short intervals. Meanwhile, the centre drill remains in the
centre hole.
5. To prevent the the inner pipe wall from being damaged, ensure that the core
cutter is not inserted too deep.
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Instruction manual Core cutter