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Adjustment Procedure
1) Adjustment of the thread trimming cam position
1. Put the thread trimming solenoid ❶ in the state that the solenoid
is pushed to the maximum level by hand.
2. Loosen and adjust the thread trimming cam setscrew ❹ so that
the gap length becomes 2mm between the thread trimming cam
❷ and the cam follower ❸.
3. After adjustment, tighten two thread trimming cam setscrews ❹.
(Caution) After adjustment, make confirmation according to
[3.-(11)-3) Standard timing for the thread trimming
cam].
4. Apply exclusive grease (JUKI grease A) to the stopper spring part
❺.
2) Adjustment of the thread trimming link stopper screw
1. Turn the hand wheel and adjust the thread trimming roller ❾ to
the inlet section G of the thread trimming cam groove.
2. Loosen and take out the thread trimming link stopper setscrew B
❼ that is locking the thread trimming link stopper setscrew A ❻.
3. Adjust the thread trimming link stopper setscrew A ❻ to make
the clearance to be uniform between the thread trimming roller ❾
and the thread trimming cam groove on both inside and outside.
4. Tighten the thread trimming link stopper setscrew B ❼.
In this case, make sure that the thread trimming link stopper
setscrew A ❻ does not move.
5. Try to move the cam follower ❸ to the right and left and confirm
that the thread trimming roller ❾ enters smoothly without touch-
ing the thread trimming cam groove.
6. The thread trimming connecting rod bracket ❽ shall be posi-
tioned 16.5 mm away from a machined surface.
(Caution) After adjusting the thread trimmer connecting rod
bracket ❽, do not loosen the screw (yellow paint
is applied as markings.). The initial position of a knife
or the amount of engagement of a blade happens to
change.
Results of Improper Adjustment
○ Be careful about the distance of
16.5 mm because it influences the
thread trimming motion.
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