EIBENSTOCK BST 152/53 Original Instructions Manual page 22

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:
behavior at malfunction
Turn off the machine at malfunction and disconnect from the
main supply. Operations on the electrical system of the
machine can be executed by a specialist only.
Trouble shooting
malfunction
Drill unit has to much
play (vibration)
possible cause
stand has been loose
guidance has to much play
thrust piece worn

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 thrust piece 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.
repair
adjust the wing nut
adjust guidance (see above)
replace the thrust piece
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