5. MECHANICAL DESCRIPTIONS

<Backtacking mechanism>

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.

1117B

1.Reverse stitching lever

2.Lever guide

3.Reverse lever shaft

4.

Feed adjusting lever U

<4> Condense regulator

5.

Connecting rod D

(Touching tip of screw)

6.

Feed adjusting lever D

<5> Feed regulating stud tip

7.

Feed regulator shaft

 

8.

Feed connecting lever

(1) Condense dial 5

9.Feed regulator connecting rod

10.Feed regulator lever

11.Feed regulator

<8550A-A31, 8560A>

(1) Feed regulator shaft

0083B

39

Z-8550A, 8560A