B.THREAD TENSION REGULATOR MECHANISM
1 2 3
4
48 47 46
45 44 43 42 41 40 39 38 37 36
8
9
10
12
13
11
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15
14
16 17
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34
33
32
35
18
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22
23
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24
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25
26
27
28
29
3 0
31