Husqvarna VIKING Designer Jade 20 Service Manual page 9

13. Threading device
With a new # 70 needle the threader hook should go smoothly into the
needle eye.
14. Lower thread tension (thread tension of the bobbin case)
The thread tension spring of the bobbin case shall give a resistance of 17 g when
pulling the thread slowly, using normal polyester thread.
15. Upper thread tension
Set the thread tension dial to "4". Thread up with Polyester #60 and pull thread slowly , the
resistance should be 50g.
16-17 . Stitch length balance
The darning stitch shall look according to illustration.
Use Service mending stitch in menu 4 key.
18. BH photo sensor position adjustment
The BH lever crank (b) and the photo sensor's (c) blocking movement should be
set in the middle.
19. Adjustment of bobbin winding
When winding up the lower thread onto the bobbin the machine should wind even.
20. Adjustment of bobbin winder stop
When winding up the lower thread onto the bobbin the machine should stop
when there is a min. of 1 mm between the edge of the bobbin and the thread.
Settings - Quick reference
1047356-26
0.1 mm
C
a
2
c
b
2
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