EIBENSTOCK EBM 352/3 Notice Originale page 119

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 locking of the mounting plate and remove the core drill machine
from the drill rig (see page 17).
Loosen the fastening nut (F) (see page 15).
While doing so, hold the drill rig firmly!
Remove the drill rig.
Unscrew the quick action clamping screw (D) (see page 15).
Care and Maintenance
Always keep the drill rig clean, especially the column with the toothing and the
4 sliding balls 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 balls 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:
Loosen the counter nut on the Allen screw by
means of an jaw wrench SW 17
Adjust the Allen screws and the position of
the sliding balls to the column by means of a
hex head wrench SW 8.
Tighten the counter nut again and check
whether the carriage moves easily on the
column
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