Timing Of Opening - Duerkopp Adler 868 Service Instructions Manual

2.7.3

Timing of opening

3
2 1
Caution: Risk of injury !
Turn the main switch off !
Check and set bobbin case opening only with the sewing machine
switched off.
Standard checking
The sewing thread must be able to slip through the points 1 and 2
without any hindrance.
–
Make the machine sew a few stitches on the sewing material and
stop it.
–
Effectuate manually (on the handwheel) a sewing stitch and check
whether the sewing thread runs without any hindrance.
Correction
Loosen the screw 3 by using the Allen key 4. The screw 3 can be
–
attained through the side plates 5.
Set the machine on the handwheel to position 125°±5° respectively
–
305°±5° (double-rotating) and tighten screw 3 (for the right-hand
post from the front as shown in the picture and for the left-hand
post from the rear side) again.
–
The exact setting has to be adapted to the sewing material and the
sewing thread.
5 4
GB
33