Brother International BAS-760 Instruction Manual - English - Page 15

Thread, tension

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LI Thread tension Stitches when upper thread s.. tension is too low Low High Stitches when upper thread tension is too high Correct stitches 1. When the thread take-up lever is in the highest position after thread trimming, adjust the upper thread beyond the needle eye so as it is 35 to 40 mm long, by turning tension nut 0. 2. Adjust the lower thread tension by turning tension regulating screw®. 3. Adjust the upper thread tension by turning tension nut @ and 0 after lowering the presser foot. X Then adjust the tension 30 - 40 g by turning tension nut 0. Main adjust is performed by using tension nut es. * Thread take-up spring 6 5mm 5mm 50- 60 g 1. The standard thread take-up spring height is 5 mm from the lower end of the thread guide. The standard thread take-up spring force is 50 to 60 g. 2. To adjust the thread take-up spring height, loosen set-screw 0 and turn the whole unit of the tension regulator assembly. 3. To adjust the thread take-up spring force, insert a screwdriver tip into the groove of tension stud fa and turn it as much as is appropriate. -12-

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LI
Thread
tension
s..
Low
High
Stitches
when
upper
thread
tension
is
too
low
Stitches
when
upper
thread
tension
is
too
high
Correct
stitches
1.
When
the
thread
take-up
lever
is
in
the
highest
position
after
thread
trimming,
adjust
the
upper
thread
beyond
the
needle
eye
so
as
it
is
35
to
40
mm
long,
by
turning
tension
nut
0.
2.
Adjust
the
lower
thread
tension
by
turning
tension
regulating
screw®.
3.
Adjust
the
upper
thread
tension
by
turning
tension
nut
@
and
0
after
lowering
the
presser
foot.
X
Then
adjust
the
tension
30
-
40
g
by
turning
tension
nut
0.
Main
adjust
is
performed
by
using
tension
nut
es.
*
Thread
take-up
spring
5mm
5mm
50-
60
g
6
1.
The
standard
thread
take-up
spring
height
is
5
mm
from
the
lower
end
of
the
thread
guide.
The
standard
thread
take-up
spring
force
is
50
to
60
g.
2.
To
adjust
the
thread
take-up
spring
height,
loosen
set
-screw
0
and
turn
the
whole
unit
of
the
tension
regulator
assembly.
3.
To
adjust
the
thread
take-up
spring
force,
insert
a
screwdriver
tip
into
the
groove
of
tension
stud
fa
and
turn
it
as
much
as
is
appropriate.
—12—