Singer Centurion 121D - Page 10

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
HOOK TIMING CONT'D
Reset position finger so there is .018" -
.022" thread clearance between finger and
basket (Fig. E).
FIG. E
For 200 Variety Machines (.085" Loop Rise)
Loosen hook set screws. Turn hand wheel in direction of rotation until needle bar is on
the rise stroke and the lowest mark is aligned with the needle bar height indicator Set
hook point to the centerline of the needle (Fig. F) Tighten hook set screws.
FIG. F
Hook Point to
Centerline of Needle
For 300 Variety Machines (.100" Loop Rise)
Loosen hook set screws. Turn hand wheel in direction of rotation until needle bar is on
the rise stroke and the center mark is aligned with the needle bar height indicator. Set
hook point to the centerline of the needle (Fig. F) Tighten hook set screws
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