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4. MECHANICAL DESCRIPTIONS
BAS-311G, BAS-326G
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4. MECHANICAL DESCRIPTIONS
4-1. Needle bar and thread take-up mechanisms
4-2. Lower shaft and shuttle race mechanisms
1. Motor assy
2. Upper shaft
3. Crank rod assy
4. Rock gear
5. Lower gear
6. Lower shaft
7. Driver
8. Shuttle hook
1. Motor assy
2. Upper shaft
3. Thread take-up crank
4. Needle bar crank
5. Needle bar connecting rod
<5> Thread take-up lever assy
6. Needle bar clamp
<6> Thread take-up support
7. Needle bar
5042Q
5041Q
The mechanisms operate in the order of the numbers given in the illustrations.