Timing Of The Lower Looper - Singer 14T957DC Service Manual

7. Timing of the lower looper

Note:
The timing of the lower looper is set by turning the handwheel back and forth.
This method guarantees a 100 % setting.
This is very important for machines with double eccentric for the loopers and chainstitch loo-
pers.
A new needle system ELx705 Nm 90 must be used for the following steps.
Check:
1. Turn the handwheel in the sewing direction until the tip of the lower looper is 1 mm (A) out-
side the "B" needels left side .
2. Put the needle clamp (D) on the needle bar and up against the machine's housing and
secure lightly.
3. Turn the handwheel in the opposite direction to the normal direction until the needle rise
clamp rests against the machine's housing.
4. The looper point must now be positioned 1 mm (A) outside the "B" needels left side too .
Setting:
1. Slightly loosen both screws (C) on the Lower looper eccentric.
2. Attach the needle rise clamp (D) again and repeat the operation as described under
"Check".
3. Turn the drive eccentric until the looper point is in the middle of the rear of the right needle.
4. Repeat this procedure, until the setting is correct.
5. Tighten both screws (C) of the drive eccentric.
6. Re-check as described under "Check".
A= Needle clamp (41310 22- 01)
D
10
D
A
A
C
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