DURKOPP ADLER 911-211-10 Operating Instructions Manual page 31

Operation
Adjusting the hook thread tension
Fig. 14: Adjusting the hook thread tension
(1) - Tension spring
The hook thread tension is generated by the tension spring (1) and
adjusted via the adjusting wheel (2).
To adjust the hook thread tension:
1. Turn the adjusting wheel (2).
Operating Instructions 911-211-10 - 00.0 - 10/2020
WARNING
Risk of injury from sharp and moving parts!
Puncture or crushing possible.
Switch the machine to bobbin change mode before
adjusting the hook thread bobbin.
①
• Increase the hook thread tension: Turn the adjusting wheel (2)
clockwise
• Reduce the hook thread tension: Turn the adjusting wheel (2)
counterclockwise
②
(2) - Adjusting wheel
29