DURKOPP ADLER 827 Service Instructions Manual page 47

Position of the hook and needle
Fig. 29: Adjusting the looping stroke position
(1) - Threaded pins
(2) - Set collar
Proper setting
1. Lock the machine in place at position 1 ( p. 22).
 The hook tip points exactly to the vertical center line of the needle.
Disturbance
• Skip stitches
To adjust the looping stroke position:
1. Tilt the machine head ( p. 14).
2. Disassemble the feed dog ( p. 20).
3. Lock the machine in place at position 1 ( p. 22).
4. Adjust the stitch length adjusting wheel to 0.
5. Loosen all 4 threaded pins (2) for the set collar (1).
6. Turn the hook such that the hook tip (4) points exactly to the vertical
7. Tighten the threaded pins (2) for the set collar (1).
Order
Then check the following adjustments:
• Needle guard ( p. 48)
• Timing of cutting by the thread trimmer ( p. 63)
Service Instructions 827/827-M - 01.0 - 05/2019
①
center line of the needle.
④
② ③
(3) - Groove
(4) - Hook tip
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