Brother SL100 Service Manual page 131

Adjustment
<From previous page>
9. Match up the right edge of the needle with the outer rotary hook point by turning the outer rotary hook assy
counterclockwise by hand.
*Key point
• When the right edge of the needle matches up with the outer rotary hook point, "D" cut on the lower shaft A
should be facing inward.
10. Tighten the two screws of the fixed joint on the lower shaft B to connect the lower shaft A and B.
Needle
Right edge of needle
and tip coincide
"D" cut
Lower shaft A
[Confirmation]
When the needle is lowered to the lowest point by turning the pulley by hand, check that the feed dog is lowered.
Needle bar rising
Outer rotary hook assy
Lower shaft A
4 - 13
Set Screw, Socket (FT) M5X5
Fixed joint
Lower shaft B
Screws
Hex wrench
2.5 mm