Brother 4234DT Manual De Instrucciones página 14

Chart of thread tension adjustment, One-needle (Three-thread)
A: Reverse B: Surface
C
A
B
E
C
A
D
B
E
A
D
B
E
A
D
B
E
A
D
B
Chart of thread tension adjustment, One-needle (Two-thread)
A: Reverse B: Surface
C
A
D
B
C
A
D
B
10
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C: Needle thread D: Upper looper thread
Needle thread is
loose.
Needle thread is
tight.
Upper looper
thread is tight.
Lower looper
thread is loose.
Upper looper
thread is loose.
Lower looper
thread is tight.
Upper looper
thread is loose.
Lower looper
thread is loose.
C: Needle thread D: Lower looper thread
Needle thread is
tight.
Lower looper
thread is loose.
Needle thread is
loose.
Lower looper
thread is tight.
E: Lower looper thread
Tighten needle
thread.
(yellow or green)
Loosen needle
thread.
(yellow or green)
Loosen upper
looper thread
(pink)
Tighten lower
looper thread
(blue)
Tighten upper
looper thread
(pink)
Loosen lower
When you adjust the
looper thread
thread tension, do it in the
(blue)
following order:
(1) Needle thread
Tighten upper
(2) Upper looper thread
looper thread
(pink) (3) Lower looper thread
This is the easiest way to
Tighten lower
obtain the correct thread
looper thread
tension.
(blue)
Loosen needle
thread.
A
(yellow or green)
Tighten lower
looper thread
(blue)
Tighten needle
thread.
(yellow or green)
Loosen lower
looper thread
(blue)
C
D
B