Baby Lock BL7800, Service Manual

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10. POSITION OF BUTTONHOLE SWITCH LEVER
STANDARD
When the buttonhole lever is lowered, the clearance of front part of buttonhole foot is 1.5 mm and the presser foot
lever is lowered BH0 should touch BH1.
ADJUSTMENT
1. Turn on power switch and select pattern .
2. Fit the buttonhole foot (A). Adjust the clearance to 1.5 mm, and lower the presser foot lever.
3. Adjust the position of buttonhole lever so that BH0 touches BH1 when the buttonhole eccentric shaft (C) is
rotated.
NOTE: In case that the legs are shorter than the standard, bend the BH1 to be far from BH0.
In case that the legs are longer than the standard, bend the BH2 to be close to BH0.
Adjustment Point
If the buttonhole eccentric shaft (C) is rotated clockwise, the clearance (D) between BH0 and BH1 widens.
* Pull open the buttonhole foot to its maximum and check that the switch can be switched.