JUKI MB-373 Manual page 11

Adjustment Procedures
™ Remove the machine arm side cover (left), loosen the screw
of nipper bar block 3 and move nipper bar block 4 to the
right or left to perform adjustment.
4
™ Loosen the stitch adjusting cam screw A, and turn the cam
in the rotational direction to make adjustment.
Stop-motion position
3
11
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Results of Improper Adjustment
™ If the clearance is too large, the
thread from the needle will become
too short.
™ If the clearance is too small, some
kinds of thread will be broken.
™ If the impact at the time of the stop
motion is too great, increase the
clearance, and if the cam stops
before it reaches the stop-motion
position, decrease the clearance.