Thread-Guiding Parts; Thread Regulator - Duerkopp Adler 669 Service Instructions Manual

2.12 Thread-guiding parts

2.12.1

Thread regulator

1 2
Caution: Risk of injury!
Turn off the main switch.
Check and set the thread regulator only with the sewing machine
switched off.
Standard checking
The position of the thread regulator 1 depends on the thickness of the
material to be sewn, the thread size and the chosen stitch length.
It has to be set so that the thread is guided around the hook and kept
under control.
In position "1" occurs the highest thread output as needed with
particularly large stitch lengths and thick sewing threads.
–
Position the material.
–
Thread in the needle and hook thread.
–
Open the throat plate slide.
–
Turn the handwheel slowly and observe how tight the thread is
guided around the hook.
Correction
–
Loosen the screw 2.
–
Shift the thread regulator.
Thread regulator to the left = more thread.
Thread regulator to the right = less thread.
–
Fasten the screw 2.
GB
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