Rotary Hook Mechanism - Brother Z-8550A Service Manual

7-6. Rotary hook mechanism

Tighten after carrying
out the adjustments in
"9-15. Bobbin case
holder bracket position".
1. Needle
2. Screw
3. Rotary hook
4. Set screws [2 pcs] (Temporarily tighten)
5. Bobbin case holder position bracket
6. Screw (Temporarily tighten)
7. Feed dog
8. Screws [2 pcs] (Temporarily tighten)
9. Needle plate
10. Flat screws [2 pcs]
11. Auxiliary needle plate
12. Flat screws [2 pcs]
13. Slide plate (8550A) <13> Knife unit (8560A)
(1) Needle plate spacer (8560A)
Z-8550A, 8560A
Tighten after carrying out
the adjustments in "9-7.
Feed dog forward/back and
sideways position".
Install after carrying out
the adjustments in "9-14.
Needle and rotary hook
timing".
Tighten after carrying out
the adjustments in "9-14.
Needle and rotary hook
timing".
<For the 8560A >
7. ASSEMBLY
1136B
0128B
0129B
60