Brother S-7200C User Manual

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7. MECHANICAL DESCRIPTIONS 
 
S-7200C
 
58
. 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.)
 
 
-. 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