DURKOPP ADLER H-Type 969, Service Instructions Manual

Page: 63 / 90

Adjusting the sewing foot feed
Service Instructions 969 - 01.0 - 12/2015 61
Fig. 42: Adjusting the presser foot bar drive dog
Setting steps
1. Move the handwheel into the 0° position (

p. 20).
2. Set stitch length to 0.
3. Loosen the screws (3).
4. Loosen the screw (1).
5. Take off the assembly (6) along with the shaft (4) and the pin (2).
6. Loosen the drive dog screw (14).
7. Take out the plate (7) and insert it under the feet with the smooth surface
facing up.
8. Insert the needle shaft into the opening (11), turn the lever (13) so that
the needle shaft touches the presser foot bar (10), and at the same time,
press both feet (8) and (9) onto the plate (7).
9. Tighten the drive dog screw (14).
10.Refit the assembly (6). Make sure there is an axial play of 0.2 to 0.3 mm
between the slide nut (12) and the floor of the gully (5).
11.3 Aligning the feed stroke of the feet
The main purpose of this adjustment is to ensure that, at the start of feed-
ing, the presser foot is lifted above the material and the material feeding
movement is not obstructed by the sewing foot.
Proper setting
When the stitch length is set to 0 and the stroke of the foot is set to 0:

The lever is attached to the lift bar of the feet by the screw (5) in such
a way that the presser foot (1) is positioned 0.3 mm higher than the
sewing foot (2).
(1) - Screw
(2) - Pin
(3) - Screws
(4) - Shaft
(5) - Gully
(6) - Assembly
(7) - Plate
(8) - Presser foot (9) - Sewing foot
(10) - Presser foot bar
(11) - Opening for the needle shaft
(12) - Slide nut
(13) - Lever
(14) - Drive dog screw
(15) - Drive dog
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