Brother International LK3-B438E MKII Instruction Manual - English - Page 30

Turn the tension stud, with a screwdriver., LK3-B438E Mark II, Become, greater, Become less, Weaker

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7-6-3 . Thread take-up spring height Lower Higher 7. CORRECT USE 7-6-4. Thread take-up spring tension q Stronger q Weaker Loosen the set screw q and turn the tensioner body Turn the tension stud q with a screwdriver. to adjust the thread take-up spring height. 7-6-5. Adjusting arm thread guide R Become greater A Become less q w The standard position of arm thread guide R q is when the screw w is aligned with mark A. To adjust the position, loosen the screw w and then move arm thread guide Rq. * When sewing thick material, move arm thread guide Rq to the left. (The thread take-up amount will become greater.) * When sewing thin material, move arm thread guide Rq to the right. (The thread take-up amount will become less.) 7-6-6. Thread take-up amount w Become less Become greater q e Loosen the screw q and move the stopper (3.57 nut) w to adjust the operating angle of the thread take-up solenoid e. * To reduce the thread take-up amount, move the stopper w upward. * To increase the thread take-up amount, move the stopper w downward. LK3-B438E Mark II 24

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LK3-B438E Mark II
24
7. CORRECT USE
Become
greater
Become less
q
w
w
q
e
q
Weaker
Stronger
7-6-3 . Thread take-up spring height
7-6-4. Thread take-up spring tension
Loosen the set screw
q
and turn the tensioner body
to adjust the thread take-up spring height.
Turn the tension stud
q
with a screwdriver.
7-6-5. Adjusting arm thread guide R
The standard position of arm thread guide R
q
is when
the screw
w
is aligned with mark
A
.
To adjust the position, loosen the screw
w
and then
move arm thread guide R
q
.
*
When sewing thick material, move arm thread guide
R
q
to the left. (The thread take-up amount will be-
come greater.)
*
When sewing thin material, move arm thread guide
R
q
to the right. (The thread take-up amount will
become less.)
7-6-6.Thread take-up amount
Loosen the screw
q
and move the stopper (3.57 nut)
w
to adjust the operating angle of the thread take-up
solenoid
e
.
*
To reduce the thread take-up amount, move the
stopper
w
upward.
*
To increase the thread take-up amount, move the
stopper
w
downward.
Become less
Become greater
q
Lower
Higher
A