Am 12.05.15 um 10:13 schrieb Holm Tiffe:
  I've successfully "repaired" the drive
with an careful hit from a
 rubber-hammer! It seems that this way a stick headassemble gets free'd up
 again. 
Yes. This is the standard repair method for IBM 066x SCSI disks...
Did it several times.
--
tsch??,
       Jochen