Brother Z-8550A Service Manual page 48

5. MECHANICAL DESCRIPTIONS
<Backtacking mechanism>
1117B
1. Reverse stitching lever
2. Lever guide
3. Reverse lever shaft
4. Feed adjusting lever U
5. Connecting rod D
6. Feed adjusting lever D
7. Feed regulator shaft
8. Feed connecting lever
9. Feed regulator connecting rod
10. Feed regulator lever
11. Feed regulator
39
<4> Condense regulator
(Touching tip of screw)
<5> Feed regulating stud tip
(1) Condense dial 5
<8550A-A31, 8560A>
(1) Feed regulator shaft
Z-8550A, 8560A
Adjusting the condense dial changes the angle
of the feed regulator when the reverse stitching
lever is pushed down. When the condense dial
is aligned with the - side scale, the angle of the
feed regulator increases and feed is reversed.
0083B