Singer Centurion 121D - FEED REVERSE DRIVE ASSEMBLY (Assembly)

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
ASSEMBLY SEQUENCE
FEED REVERSE DRIVE ASSEMBLY
Insert long shaft, from right to left. through casting, collar and dynamic damper as-
sembly.
2 Insert feed reversing drive assembly onto long shaft end, fitting the flattened surface
3 From right to left insert short shaft through casting into drive assembly
4. Tighten set screws in drive assembly
5 Tighten set screws of dynamic damper onto flats of shaft
6 Move entire assembly to left until touchi11g casting Move collar to right until touching
casting Eliminating any end play, tighten set screws ir1 collar
7 Install crank and attach vertical link to crank
8. Rotate feed reversing lever shaft until sufficient spring pressure is attained to hold
reversing lever in upward position Tighten shaft locking set screw (Fig A. page 29)
Vertical Link ---- /
Dynamic Damper
Feed Re,e,.iog C,aok I I
o,,,. ·~~l
1
~/'~--- 7
:'..::'.::J .,
-~
Long S
Short Shaft
I
Collar
Set Screws
FIG. B
30