Top Cover Thread Pusher - Yamato VFK2560-8 Instruction Manual

6. Adjustments

6.12.4 Top cover thread pusher

Right-and-left position
Loosen the screws ④ and ⑤ , and adjust the top cover
thread pusher ① and top cover thread pusher holder ③ so
that the following conditions are satisfied.
(1) The top cover thread is pushed at part "a" of the top
cover thread pusher ① and positioned at the rear-most
part of the hole "b" of the top cover thread guide ②
when the needle bar is at the highest point.
(2) The clearance between the right needle and the top
cover thread pusher ① is between 2.5 - 3.0 ㎜ when
the top cover thread pusher ① has reached the
extreme left.
Top-to-bottom position
Provide a clearance of 1 ㎜ between the top cover thread
pusher ① and top of the top cover thread guide ② .
Check that the top cover thread pusher ① and the top cover
thread eyelet do not touch when the needle comes down and
the top cover thread pusher ① moves to the right.
VFK2560-8
needle
ａ
①
2.5 - 3.0 ㎜
Fig. 6-38
1 ㎜
Fig. 6-39
40
④
ｂ
②
①
①
②
③
⑤
②