JUKI MO-1000 Series Service Manual page 23

adjustment Procedure
Checking items:
1 Right hand needle
2 Throat plate
3 Sub feed dog
* Adjust the stitch length to 2.5 mm. Set the differential feed ratio at "N".
When sub feed dog 3 and right needle 1 go up, check that the tip of
right needle 1 and tip of the teeth of sub feed dog 3 are simultane-
ously aligned with the top surface of throat plate 2 .
How to perform adjustment:
○ Loosen the setscrews (A).
○ Rotate the feed excenter cam (B) to make adjustment.
○ Retighten the setscrews (A).
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Results of Improper adjustment
If this timing is not properly adjust-
ed, needle breakage, puckering
and incorrect feed amount can be
caused.