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❹
65.5 mm
❼
❹
❽
2.5 ± 0.5 mm
❹
❺
❻
❾
– 12 –
2. Adjusting the Lower knife
1) Set lower knife ❹ and lower knife holder ❺ with
setscrews ❻ at the position of the illustration.
3. Adjusting the position of clamp
pressure adjusting spring
1) Loosen screws ❾ .
2) Adjust so that a clearance of 2.5 ± 0.5 mm is
provided between the top end of clamp pressure
adjusting spring and the top end of lower
knife ❹ when the lower knife ❹ is brought to the
rightmost position.
3) After the adjustment, tighten screws ❾ .
4. Adjusting the knife
engagement and the knife
pressure adjusting spring
1) Loosen screws ❼ and ❽ , and adjust the position
of upper knife so that the engagement of the
upper knife with the lower knife is 0.5 mm when
lower knife ❹ moves to the extreme right.
2) At the same time, adjust so that a clearance of
0.5 to 1 mm is provided between knife pressure
adjusting spring and clamp pressure adjusting
spring .
3) After the adjustment, tighten screws ❼ .
5. Adjusting the pressure of
clamp spring
1) The looper thread is held by clamp pressure
adjusting spring after thread trimming.
2) Holding pressure of the looper thread can be
adjusted by turning screw ❽ .
3) When screw ❽ is turned clockwise, the holding
pressure is increased and turned counterclockwise,
the pressure is decreased.
4) Make the holding pressure as low as possible
within the range of holding the looper thread.
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