HP65 / 67 / 97 card motor stuck

[achim]

Hi all,

although I restored and cleaned all of my HP65, 67 and 97 (in some cases of course may be more then 10 years ago) and the card readers worked then, now all of these where stuck when I tested them, either moving not at all or very slowly, unregularily and some with squeaking noise. Has anyone a proven method to fix that and make them running again? I don't want to apply simply some lubricant until I'm shure not to increase the problem in the future.

Best regards,
Achim