Dürkopp Adler M-TYPE H867, Service Manual

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Aligning the needle bar linkage
Service manual H867 Version 00.0 - 08/2013 43
10.2 Aligning the needle bar linkage in the sewing direction
Cover
• Valve cover (  Section 4.4.4 Removing and fitting the valve cover ,
page 12)
• Tilt the upper section backwards
(  Section 4.4.1 Access to the machine bottom section , page 10)
Figure 34: Aligning the needle bar linkage in the sewing direction
Setting steps
1. Position the lower stitch length adjusting wheel to 0.
2. Position the upper stitch length adjusting wheel to 0.
3. Loosen the screw (1).
4. Loosen the setscrews (5).
5. Move the needle bar linkage in the sewing direction such that the dis-
tance between the straight surface (2) of the lever (4) and the outer
edge (3) of the rear arm surface is exactly 43 mm.
6. Tighten the setscrews (5).
7. Turn the needle so far downwards that insertion into the needle hole
can be checked.
8. Move the needle bar linkage in the sewing direction such that the needle
pierces exactly in the center of the needle hole for the feed-dog.
9. Tighten the screw (1).
Risk of injury
Switch the sewing machine off before you check and set the
position of the needle bar linkage in the sewing direction.
WARNING
43
4
5
3
2
1
(1) - Screw
(2) - Straight surface
(3) - Outer edge
(4) - Lever
(5) - Setscrews