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m~•i'f.J•~:ct~!i!,
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e
titlli:ili*
•
When
the
thread
take-up
spring
moves
up
to
midway,
thread
is
fed
out
from
8
since
the.
tension
of
the
thread
take-up
spring
is
high.
0
•
·;(~
•
m~•-:ft~fti!Jiilli
•
The
thread
take-up
spring
works
up
to
the
last.
•~•ilill~•~~~~h~,•~•~•~lli~~m~!Ji.reoo~~®~~~m.~
·ft·~-~~--~~~~00~®~--~~.
-~$·~-~lli~.
1.
Changing the stroke
of
thread take-up spring
I ) Loosen setscrew
q).
2)
As you turn tension post
~
clockwise(in direction A), the stroke
of
the thread take-up spring
will be increased.
3)
As you turn tension post
~
counterclockwise(in direction B), the stroke will be decreased.
2. Changing the pressure
of
thread take-up spring
CD
1) Loosen setscrew
q),
and remove thread tension
a:>.
2) Loosen
setscrew®.
3) As you turn tension post
~
clockwise(in direction A). the pressure will be increased.
4) As you turn tension
post~
counterclockwise(in direction B), the
pressure
will be decreased.
Usually, upon the
machine
coming
out, all the
take-up
spring
has
been
adjusted
well,
only
while sew special material thread, it need to be adjusted again.
To
judge
the work
of
the
thread
take-up
spring,
confirm
whether
or
not the
thread
take-up
spring works up to the last before
needle
thread
is
pulled
out from @
when
pulling
out
needle
thread in the
direction
of
@after
the
pressure
of
the thread take-up
spring
has been
performed.
When
it
does
not work up to the
last,
decrease
the
pressure
of
the
thread
take-up
spring.
In
addition. the stroke
of
the thread
take-up
spring is excessively small, the
spring
does not work
properly.
For
the general fabrics, a stroke
of
10 to
13
mm is proper.
-
14-
From the library of: Superior Sewing Machine & Supply LLC
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
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