DURKOPP ADLER 969 Classic, Service Instructions Manual

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Setting the stitch length adjusting wheel
38 Service Instructions 969 - 06.0 - 03/2019
7. To set the stitch length, use a size 10 wrench to carefully turn the
shaft (4).
•
to set a shorter stitch length: turn counterclockwise
• to set a longer stitch length: turn clockwise
8. Perform a sewing test with a sheet of paper and readjust if necessary.
9. Turn the scale (5) so that the number indicating the stitch length is
exactly next to the adjusting mark (3).
10. Place the lower stitch length adjusting wheel (2) onto the shaft (4) and
tighten it with the wrench (6).
11. Tighten the screw (1).
7.3 Setting the stitch length limit
If not all of the stitch lengths are available during sewing operation, a limit
can be placed on the maximum stitch length that can be set.
12, 9, or 6 mm can be selected as the maximum stitch length. The appro-
priate throat plate must be selected for the selected maximum stitch
length. The throat plate cutout must be large enough to prevent the feed
dog from hitting the edges of the throat plate at the front and rear dead
center.
Proper setting
Turn the upper stitch length adjusting wheel clockwise as far as it will go.
 The upper stitch length adjusting wheel can only be turned up to the
set maximum stitch length.
Fig. 26: Setting the stitch length limit
To set the stitch length limit:
1. Position the upper stitch length adjusting wheel (1) to 0 .
2. Hold the upper stitch length adjusting wheel (1) in place using the
wrench (3).
3. Loosen the screw (2).
4. Remove the upper stitch length adjusting wheel (1).
(1) - Upper stitch length adjusting wheel
(2) - Screw
(3) - Key
(4) - Mark-off slots
④
①
②
③