Brother KE-430B Service Manual page 95

KE-484C
3422Q
Turn the machine pulley to align the tip of the rotary hook with
the needle center line. Then tighten the set screw to adjust the
clearance between the needle and the tip of the rotary hook to
0.01–0.08 mm.
Bobbin case holder
position bracket
Install the hook stopper setting base so that the
distance from the tip of the bobbin case holder
position bracket to the needle drop surface is
approximately 0.8 mm.
3425Q
Tip of the rotary hook
Set screws
KE-430B, 430C series
4. ASSEMBLY
Approx. 0.8mm
Shuttle hook
1. Needle bar thread guide
2. Needle
3. Set screw
4. Treble hook assy
5. Set screws [2 pcs]
6. Hook stopper setting base
7. Screw
8. Bobbin
9. Bobbin case assy
3423Q
3424Q
88