7. MECHANICAL DESCRIPTIONS
S-7200C
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７. MECHANICAL DESCRIPTIONS
The mechanisms operate in the order of the numbers given in the illustrations.
* <number> and [number] indicates the flow of each operations given.
* (number) indicates part names only. (They do not represent the flow of operations.)

７-１. Upper shaft and needle bar mechanism

1. Pulley
2. Motor shaft
3. Upper shaft
4. Thread take-up crank
5. Needle bar crank
6. Needle bar crank rod assembly
7. Needle bar clamp
8. Needle bar
(1) Needle bar bush U
(2) Needle bar bush D
The needle bar is guided by needle bar bush U
(1) and needle bar bush D (2).
4338M