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Promac 930ELB Bedienungsanleitung Seite 16

Säulenbohrmaschine

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3-4. Withdraw drill bit :
The arbor can be removed to install another drill chuck in the spindle. A drift key is included to help
remove the arbor from the spindle. Usually, once the chuck and arbor have been properly mounted
together, they are considered semi-permanent connections.
(If you would like to install a different chuck, we recommend getting a new arbor for that chuck.)
To remove the drill chuck and arbor:
1. Unplug the drill press!
2. Rotate the spindle handles until the drift-key slot is exposed in the side of the quill.
3. Loosen the lock knob and rotate the hub (Figure 18) clockwise until it stops.
4. Tighten the lock knob. The quill should not return up into the head casting.
5. Rotate the spindle until the inner drift-key slot is aligned with the outer slot, as shown in (Figure
19). You will see through the spindle when the slot is properly aligned.
6. Insert the drift key into the drift-key slot.
7. Tap the drift key with a rubber or wooden mallet, as shown in (Figure 20), until the chuck
releases.
8. Hold a downfeed handle with one hand, and loosen the lock knob with the other hand.
9. Carefully retract the quill into the headstock.
10. Don't push spindle stroke too long to avoid spindle stick. (Figure 21)
Hub
Figure 18
DRILL SHIFTER
Figure 20
Lock Knob
16
Both Slots
Aligned
Figure 19
Figure 21

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