Adjusting The Rocking Thread Take-Up - JUKI MF-7700D Series Engineer's Manual

(2) Adjusting the rocking thread take-up

1. Length of the rocking thread take-up
(1) It is the standard that the length of rocking thread take-up
take-up support arm
2. Position of the rocking thread take-up
(1) Install so that rocking thread take-up
lowest position.
Flush
3. Timing of the rocking thread take-up
(1) It is the standard timing that rocking thread take-up
its lowest position as well when the needle bar is in its lowest
position.
Timing of rocking thread take-up
adjusting the position of rocking thread take-up ball arm
.
4. Relation between the timing of rocking thread take-up and
the needle thread loop
(1) When using the excessively stretchable thread or the hard-
to-stretch thread, the size of needle thread loop can be
changed by changing the timing of rocking thread take-up
.
(2) Relation between the timing of the rocking thread take-up
and the size of needle thread loop is as shown in the
table on the next page.
(The relation becomes reverse when using the needle bar
thread take-up = standard seams and when it is not used =
soft seams. So, be careful.)
Standard Adjustment
to the thread hole face of rocking thread take-up
is flush with rocking thread take-up
is performed by
from the center of the shaft of rocking thread
is in
– 8 –
is 95 mm.
when the needle bar is in its
↑
Anti-operatorís side
4mm
Operatorís side
↓