Timing Of Upper Looper And Lower Looper - Singer S0100 Service Manual

9. Timing of upper looper and lower looper

CHECK
When point of upper looper is aligned with the of lower side of lower looper, the clearance
between the point of the upper looper and the thread hole of the lower looper should be 0.05
- 0.1 mm.
ADJUSTMENT
1. Align the point of the upper looper with the lower side of lower looper by turning the hand-
wheel towards you.
2. Loosen cam screw (A) of the upper looper and adjust the position of the upper looper so
that the clearance between the point of the upper looper and the thread hole of the lower
looper is 0.05 - 0.1 mm.
3. Tighten screw (A).
0.05-0.1 mm
A
16 S0100 / S0105 104 73 97-26