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7. To set the stitch length, use a size 10 wrench to carefully turn the
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
10. Place the lower stitch length adjusting wheel (2) onto the shaft (4) and
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
Fig. 26: Setting the stitch length limit
(1) - Upper stitch length adjusting wheel
(2) - Screw
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
3. Loosen the screw (2).
4. Remove the upper stitch length adjusting wheel (1).
38
shaft (4).
• to set a shorter stitch length: turn counterclockwise
• to set a longer stitch length: turn clockwise
exactly next to the adjusting mark (3).
tighten it with the wrench (6).
set maximum stitch length.
①
②
③
wrench (3).
Setting the stitch length adjusting wheel
(3) - Key
(4) - Mark-off slots
Service Instructions 969 - 06.0 - 03/2019
④
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