Top Cover Thread Tension - Yamato VF2400 class Instruction Manual

☆ Use the needle thread guide when the needle thread
forms a loop unstably with stretchable thread like a
synthetic thread.
As standard, align the center of the needle bar thread
eyelet ① eye even with the top of the needle thread
guide ② , and they are parallel when the needle bar is
at the lowest point.
Loosen the screw ③ to adjust the height and right-
and-left position of the needle thread guide ② .

6.2 Top cover thread tension

Loosen the screw ⑤ and move the top cover thread
eyelet(right) ④ to adjust it.
● To decrease take-up amount, move the top cover
thread eyelet(right) ④ in the direction "T" .
● To increase take-up amount, move the top cover thread
eylet(right) ④ in the direction "L" .
When using stretchable thread like woolly, move the top
cover thread eyelet(right) ④ in the direction "L" .
Note: Thread woolly thread through the lower eye.
Fig. 6-4
⑤
for stretchable thread
Fig. 6-5
25
6. Adjustments
③
①
T
L
④
②
VF2400