Brother International BAS-342E Instruction Manual - English - Page 21

Pretension, tension

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5. Correct use 5-6-6. Pretension tension 0 0 CZ> 0 cE> O 1. Raise the work clamp 0 and open the main tension disc 0. The thread take-up spring 0 should not operate when the thread is pulled in the direction of the arrow. 2. Set the thread tension for the thread breakage detector pretension 0 to approx. 5 g. Weaken the thread tension for the machine head pretension 0 as much as possible. Standard for balance of thread tension Adjust the thread tensions so that the total tension for the pretensions 0 and 0 is lower than the tension for the thread take -up spring. NOTE If misoperation of the thread breakage detector continues, repeat the adjustment procedure above. (Such misoperation is most likely to occur when synthetic fiber yarns are used.) BAS-341E • 342E 14

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5.
Correct
use
5-6-6.
Pretension
tension
0
0
cE>
CZ>
O
0
1.
Raise
the
work
clamp
0
and
open
the
main
tension
disc
0.
The
thread
take-up
spring
0
should
not
operate
when
the
thread
is
pulled
in
the
direction
of
the
arrow.
2.
Set
the
thread
tension
for
the
thread
breakage detector
pretension
0
to
approx.
5
g.
Weaken
the
thread
tension
for
the
machine
head
pretension
0
as
much
as
possible.
Standard
for
balance
of
thread
tension
Adjust
the
thread
tensions
so
that
the
total
tension
for
the
pretensions
0
and
0
is
lower
than
the
tension
for
the
thread
take
-up
spring.
NOTE
If
misoperation
of
the
thread
breakage
detector
continues,
repeat
the
adjustment
procedure
above.
(Such
misoperation
is
most
likely
to
occur
when
synthetic
fiber
yarns
are
used.)
BAS
-341E
•
342E
14