(2) Position of the looper thread take-up and the looper thread guide
Model
MO-6804S
MO-6814S-2△H
MO-6814S-3△H
MO-6814S-4△H
MO-6814S-30P
MO-6816S-3△H
MO-6816S-50H
MO-6816S-60H
MO-6816S-30P
(3) Adjustment value of the looper thread cam
1 to 2 mm
E
D
A
11.5
17.5
21.5
14.5
21.5
14.5
21.5
14.5
11.5
17.5
21.5
17.5
33.5
10.5
33.5
10.5
21.5
10.5
– 25 –
A
B
B
C
20
28
28
25
20
20
20
20
28
Adjust the looper thread cam timing so that the
looper thread cam releases the looper thread
when the needle tip comes down to project the
undersurface of the throat plate by 1 to 2 mm.
(Unit : mm)
D
E
28.5
11
32
11
32
11
28.5
9
28.5
9
28.5
9
28.5
9
38
9
35
15