JUKI MOL-254 Engineer's Manual page 31

Adjustment Procedures
1) Position of the counter knife
Loosen counter knife setscrews
(Caution) For the normal operation, the moving knife
passes inside of needle hole guide as
2) This side
Loosen thread trimming arm setscrew
direction of the arrow mark to adjust the position.
3) Far side
Remove rubber cap
machine bed and loosen thread trimmer connecting plate
setscrew to adjust the position.
and adjust the position.
and move in the
located on the side face of the
24
− −
Results of Improper Adjustment
○ If the clearance is smaller than
0.8 mm, blade tip of the counter
knife cuts thread when the
moving knife pulls thread. As a
.
result, needle/bobbin threads
are cut short.
○ If the clearance is larger than 0.8
mm, the length of remaining
thread under cloth after thread
trimming becomes long.