Dürkopp Adler D869 e-con Service Instructions Manual page 73

Adjusting the needle thread tension
Fig. 59: Adjusting the needle thread regulator
(1) - Screw
(2) - Screw
To adjust the needle thread regulator:
1. Open the throat plate slide ( p. 27).
2. Sew a short segment with the corresponding material.
3. Turn the electronic handwheel and observe the cycle of the needle
4. On 1-needle machines, loosen screws (1) and (2).
5. Move the needle thread regulator (3)
6. Tighten screws (1) and (2).
Service Instructions D869 e-con - 00.0 - 09/2023
③
thread around the hook.
On 2-needle machines:
• To adjust the front needle thread regulator, loosen screw (1).
• To adjust the rear needle thread regulator, loosen screw (2).
• Reduce the needle thread tension: Slide the needle thread
regulator (3) to the left.
• Increase the needle thread tension: Slide the needle thread
regulator (3) to the right.
② ①
(3) - Needle thread regulator
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