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5. MECHANICAL DESCRIPTIONS
Z-8550A, 8560A
38
<Dial feed mechanism>
1. Stitch length dial 5
2. Feed regulator
3. Connecting rod U
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
12 Feed regulator spring
Adjusting the stitch length dial changes the angle of the
feed regulator.
(1) Feed regulator
(2) Side connecting rod
(3) Feed driving connecting rod
(4) Feed rocker arm
Changing the angle of the feed regulator causes the amount
of horizontal feed movement to change.
(Continued on next page)
1116B
0084B