Operation
Operating Instructions 171/173 - 02.0 - 09/2019 23
Fig. 5: Threading the needle thread (2) 
4. Feed the thread through the thread guide (3) from above 
downwards.
5. Guide the thread around the back of the thread guide (3) 
and from the rear to the front through the bottom hole.
6. Feed the thread from above downwards through 
the thread guide (4) to the needle thread tension (5).
7. Feed the thread clockwise around the needle thread 
tension (5).
Information
The thread must always be fed around the relevant tensioning 
disk such that it covers the greater distance from thread guide (4) 
to thread guide (6).
Every tension has a tension opener (8). By pressing on the tension 
opener, the relevant tension can be opened to allow the thread to 
be fed around.
8. Insert the thread through the thread guide (6).
9. Insert the thread from the right to the left through the thread 
advancing device (7).
(3) - Thread guide
(4) - Thread guide
(5) - Needle thread tension
(6) - Thread guide
(7) - Thread advancing device
(8) - Tension opener