DURKOPP ADLER 911-211-10, Operating Instructions Manual

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Operation
24 Operating Instructions 911-211-10 - 00.0 - 10/2020
4.6 Adjusting the needle thread regulator
The needle thread regulator determines the needle thread quantity to
be guided around the hook. The required thread quantity depends on the
thickness of the sewing material, the thread strength, and the stitch length.
Larger thread quantity for
• thick sewing material
• high thread strengths
• large stitch lengths
Lower thread quantity for
• thin sewing material
• low thread strengths
• small stitch lengths
Proper setting
The loop of the needle thread slides at low tension over the thickest point
of the hook. The largest amount of thread is required, and the thread
tensioning spring (1) should be pulled up and out of its lower end position
by approx. 0.5 mm.
Fig. 9: Adjusting the needle thread regulator
To adjust the needle thread regulator:
1. Loosen the screw (1).
2. Move the needle thread regulator (2):
• Lower thread quantity: Slide the needle thread regulator (2) to
the right
• Larger thread quantity: Slide the needle thread regulator (2) to
the left
3. Tighten the screw (1).
(1) - Screw (2) - Needle thread regulator
②
①