Baby Lock BL7800, Service Manual

Page: 32 / 46

-30-
11. BOBBIN WINDER
STANDARD
The thread should be wound parallel to the bobbin and around about 75-85% of the bobbin at low speed. (A)
The clearance between the bobbin winder switch and the bobbin winder assembly should be 0.5-1.0 mm. (B)
ADJUSTMENT
1. Loosen the bobbin winding guide screw.
2. Adjust the bobbin thread amount so that the thread is evenly wound around the bobbin by moving the bobbin
winding guide vertically. (C).
3. Tighten the bobbin winding guide screw.
4. Loosen the screw securing the bobbin presser slightly.
5. Turn the bobbin presser to adjust the bobbin thread amount.
6. Tighten the screw of the bobbin presser.
7. Set the bobbin winder assembly to the left.
8. Loosen the screw of the bobbin winder switch.
9. Adjust the clearance between the bobbin winder switch and the bobbin winder assembly to 0.5-1.0 mm. (B)
10. Tighten the screw of the bobbin winder switch.
Adjustment Point
3. If the thread winds as shown by (D), lower the thread guide holder (C). If the thread winds as shown by (E),
raise the thread guide holder (C).