Setting Needle Thread Tension - Dürkopp Adler 867 Service Instructions Manual

13 Setting needle thread tension

13.1 Setting the thread regulator
The thread regulator determines the tension applied to guide the needle
thread around the hook. The required tension depends on the thickness of
the material to be sewn, thread strength, and stitch length.
Lower thread tension for
• thin material
• low thread strengths
Greater thread tension for
• thick material
• high thread strengths
Proper setting
The loop of the needle thread slides at low tension over the thickest point
of the hook, without forming loops or snagging.
Cover
• Throat plate slide ( p. 17)
Fig. 48: Setting the thread regulator
Setting steps
1. Turn the handwheel and observe the cycle of the needle thread around
66
WARNING
Risk of injury
Risk of crushing injuries and stab wounds from mov-
ing and sharp parts.
Switch off the sewing machine before checking and
setting the thread regulator.
the hook.
Setting needle thread tension
(1) - Thread regulator
(2) - Screw
1 2 3 4
Service Instructions 867 - 03.0 - 10/2017