DURKOPP ADLER H-Type 969, Инструкция по эксплуатации

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Setting the stitch length adjusting wheels
Service Instructions 969 - 01.0 - 12/2015 35
6. Carefully turn shaft (5) clockwise with a size 10 wrench until you feel
significant play on the frame for the stitch regulator gear.
7. Carefully turn shaft (5) counterclockwise with a size 10 wrench until you
no longer feel any play.
8. As soon as the frame stops moving: Remove the wrench from the
shaft (5).
9. Turn the scale (6) so that the 0 is exactly next to the adjusting mark (4).
10.Place the lower stitch length adjusting wheel (3) onto the shaft (5) and
tighten it with a wrench (7).
11.Tighten the lower stitch length adjusting wheel (3) using screw (2).
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 cut-out 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.
NOTICE
Risk of damaging the feed dog due to incorrect throat plate size
If the throat plate cut-out is too small, the feed dog may hit the edges.
Make sure that an appropriate throat plate is used for the selected
maximum stitch length.
Risk of injury!
Crushing injuries from moving parts.
Switch off the machine before setting the maximum
stitch length limit.
WARNING