Singer 14T957DC - Upper Looper Timing; Check Upper Looper Timing; Setting Upper Looper Timing

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A
B
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10. Timing of the upper looper
Check:
1. Turn the handwheel in the normal direction until the upper looper, in its upward movement,
and behind the lower looper.
2.When the two loopers overlap, the clearance between the point of the upper looper and the
head of the lower looper must be between 0.8 and 1.0 mm (A).
Setting:
1. Turn the handwheel in the normal direction until the upper looper, in its upward movement,
and behind the lower looper.
2. Loosen the screws (B) on the Upper looper drive eccentric.
3. Turn the Upper looper eccentric until the clearance between the point of the upper looper
and the head of the lower looper is between 0.8 and 1.0 mm (A).
4. Tighten the screws (B) of the Upper looper drive eccentric .
5. Re-check as described under “Check”.