Brother International BAS-342E Instruction Manual - English - Page 20

Lower, thread, tension, Thread, take-up, spring, height, Upper

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5-6-2. Lower thread tension Weaker Stronger 5-6-3. Upper thread tension 5. Correct use 0 O. Stronger Weaker @1 m. °Stronger Weaker Set the lower thread tension to as weak a tension as possible and so that the bobbin case drops by its own weight when the end of the thread is held. Turn the adjusting screw 0 to adjust the tension. NOTE If the lower thread tension is too weak, it may not be possible to cut the lower thread properly during thread trimming. Turn the tension nut 0 (main tension) to adjust the tension as appropriate for the material being sewn. Furthermore, turn the thread nut 0 (sub-tension) to adjust the remaining length of upper thread to 35 - 40 mm. 5-6-4. Thread take-up spring height 1 5-6-5. Thread take-up spring tension Lower Higher 0 (go - 10 nnm 3 OQ Weaker Stronger Loosen screw 0 and turn the entire thread take-up unit to adjust so that the height of the thread take-up spring is 8 - 10 mm. Adjust the thread take-up spring tension by turning the tension stud 0 with a screwdriver. BAS-341E • 342E 13

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5.
Correct
use
5-6-2.
Lower
thread
tension
Weaker
Stronger
Set
the
lower
thread
tension
to
as
weak
a
tension
as
pos-
sible
and
so
that
the
bobbin
case
drops
by
its
own
weight
when
the
end
of
the
thread
is
held.
Turn
the
adjusting
screw
0
to
adjust
the
tension.
NOTE
If
the
lower
thread
tension
is
too
weak,
it
may
not
be
possible
to
cut
the lower
thread
properly
during
thread
trimming.
5-6-4.
Thread
take-up
spring
height
1
-
10
nnm
Lower
OQ
Higher
3
Loosen
screw
0
and
turn
the
entire
thread
take-up
unit
to
adjust
so
that
the
height
of
the
thread
take-up
spring
is
8
-
10
mm.
5-6-3.
Upper
thread
tension
@1
m.
0
O
.
Stronger
Weaker
°Stronger
Weaker
Turn
the
tension
nut
0
(main
tension)
to
adjust
the
ten-
sion
as
appropriate
for
the
material
being sewn.
Furthermore,
turn
the
thread
nut
0
(sub
-tension)
to
ad-
just
the
remaining
length
of
upper
thread
to
35
-
40
mm.
5-6-5.
Thread
take-up
spring
tension
0
(go
Weaker
Stronger
Adjust
the
thread
take-up
spring
tension
by
turning
the
tension
stud
0
with
a
screwdriver.
BAS
-341
E
•
342E
13