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At the beginning, drill very slowly, since the drill bit does only starts cutting with a
fraction of the cut surface in the material. If you drill too fast or with too much
pressure, the drill bit could get jammed. In order to reach the max. drilling
depth, you probably have to use an extension for the drill bit!
Demounting the Core Drill Unit
Move the machine holder with the core drill upwards until it locks in the final
top position.
Remove the drill bit.
Loosen the fastening nut (F) (see page 13)
While doing so, hold the drill rig firmly!
Remove the drill rig.
Unscrew the quick action clamping screw (D) (see page 13).
Care and Maintenance
Always keep the drill rig clean, especially the column with the toothing and the
4 sliding pieces in the machine holder.
In order to allow the free movement of the pinion shaft, it should be slightly
lubricated.
In order to achieve a good performance of the drill rig, the 4 sliding pieces in
the machine holder have to move along the column without slackness.
Attention:
After every tenth drilling you should check if the sliding pieces have got
loose-fitting due to drilling vibration.
If the position should have changed, it can be readjusted as follows:
A
A
Loosen the counter nut on the Allen screw
C
(A) by means of an jaw wrench SW 13
Adjust the Allen screws and the position of
the thrust piece to the column by means of
a hex head wrench SW 6.
B
Tighten the counter nut again and check
whether the carriage moves easily on the
column.
The movement of the slide can also be set
on the slide brake (B).
Should the sliding pieces have a bit worn,
C
you can adjust the pressure on the two
screws (C) as described above.
17
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