– 17 –
1. Setting range of the intermediate presser is up to the standard of 3.5 mm.
The setting range can be changed up to max 7 mm with memory switch
.
2. When increasing the height of intermediate presser or making the needle size thicker,
confirm the clearance between the wiper and the components. Wiper cannot be used
unless the clearance is secured. Turn OFF the wiper switch. Besides, note that the wiper
is set so as to sweep at the position where the intermediate presser is in the lowest po
-
sition in spite of the setting of intermediate presser height at the time of delivery. (Mem
-
ory switch
)
4-10. Adjusting the thread take-up spring
(1) When you want to change the stroke of the thread take-up spring
1) For thread take-up spring
❶
on the left side, loosen screw
❷
and adjust the stroke of the spring by
moving the screw along the slot for adjustment.
2) For thread take-up spring
❸
on the right side, loosen screw
❹
and adjust the stroke of the spring by
moving thread take-up spring adjusting plate
❺
along thread take-up spring base
❻
.
(2) When you want to change the tension of the thread take-up spring
1) To change the tension of thread take-up spring
❶
on the left side, loosen nut
❼
and turn spring stud
❽
clockwise to increase or counterclockwise to decrease the tension of the spring.
After the adjustment, fix the stud by tightening nut
❼
.
2) To change the tension of thread take-up spring
❸
on the right side, loosen screw
❾
and turn nut
clockwise to increase or counterclockwise to decrease the tension of the spring.
After the adjustment, fix nut by tightening screw
❾
.
❶
❸
❷
❹
❺
❻
❼
Increase
Decrease
❾
Increase
Decrease
❽