Rear Window Hits Rear Headrest When Lowering Top; 5Th Bow Hits Tonneau Cover Hinges - Saab 900 Convertible Manual

8. Rear window hits rear headrest when lowering top

Reprogram top according to PSI 04/97-0758, paying particular attention to
overlap values. If you still experience this problem, you can try lowering the
5th bow overlaps one unit at a time until the problem ceases. (Do not lower
the 5th bow overlaps by more than 3 units, because this will cause other
problems - such as hesitation of the main motors while lowering the top).

9. 5th bow hits Tonneau cover hinges

a. Programming
Reprogram top according to PSI 04/97-0758. Pay special attention to the
measurements used to calculate main motor overlap values.
b. Tonneau motor drive shaft twisted
If the Tonneau motor drive shaft is twisted, the 5th bow may hit the Tonneau
cover hinges. If you think that this situation exisits, you may have to remove
the u-joint at the end of the shaft to inspect it for a twist. If the shaft is twisted,
you must replace the Tonneau motor assembly and determine the cause of
the twist. A twisted shaft is usually due to misadjusted Tonneau cover
latches. Make sure the latches are carefully adjusted according to Service
Manual 8:5, pages 127 & 128. Make sure to check the Tonneau latch adjust-
ment with top fully raised, because the 5th bow pushes the Tonneau cover
down when the top is fully raised.
See illustration in Step 4 of this guide.
900 Convertible Top Troubleshooting Guide
balance link usually bends here toward center of car