JUKI MB-1373 Engineer's Manual page 35

Adjustment Procedure
1. Adjust so that stop-motion hook
disc at the stop-motion position.
2. When the machine is in the stop-motion state, loosen setscrew
3. Tighten setscrew
standard between the end of thread guide
(Caution) After the adjustment, make sure that the thread path is
within the slot as illustrated in Fig.
starts. If the thread path is not with the slot, loosen screw
in thread guide
Adjustment Procedure
1. Make adjustments by loosening screw
comes in contact with stop-motion
so that there is a clearance of 8 to 10 mm as a
and adjust it properly.
of the speed slowing lever.
.
and end of lever .
when the machine
A
– 31 –
Results of Improper Adjustment
o If the clearance is too large,
thread-breakage will occur.
o If the clearance is too small,
tightness of the stitch will be
weakened.
Results of Improper Adjustment
o If the clearance is too large, the
start of the brake will be delayed
and the stop-motion cam may
bound or produce a loud noise at
the time of stop-motion.
o If the clearance is too small, the
brake will start too early, resulting
in a hindering of the stop-motion.