Performance Check List - Brother LS-1520 Manuel D'instructions

UPPER THREAD
BREAKS
Upper thread is
not correctly
installed.
M
No
Page 16
M
Upper thread is
tangled.
M
No
Page 16
M
Upper thread
tension is too
tight.
M
No
Page 20
M
Spool of thread
is not correctly
installed.
M
No
Page 12
M
Needle is bent
or not sharp.
M
No
Page 6
M
The combination
of needle size/
thread size/fabric
is incorrect.
M
No
Page 22
M

PERFORMANCE CHECK LIST

LOWER (BOBBIN)
THREAD BREAKS
Lower (bobbin)
thread is tangled.
M
No
Page 17
M
Bobbin is not
threaded
properly in the
shuttle hook.
M
No
Page 14
M
Lower thread
tension is too
tight.
M
No
Page 21
M
Lower threading
is not correct.
M
No
Page 14
M
CONTACT YOUR LOCAL SERVICE CENTER
SKIPPED STITCHES
Needle is
incorrectly
inserted.
M
No
Page 6
M
Damaged or worn
needle is used.
M
No
Page 6
M
The combination
of needle size/
thread size/fabric
is incorrect.
M
No
Page 22
M
Lint is clinging to
the bottom of the
needle plate.
M
No
Pages 43-45
M
Threading is not
correct.
M
No
Page 16
M
LOOP IN SEAM
Thread tension is
incorrect.
M
No
Pages 20-21
M
FABRIC PUCKERS
Thread tension is
too tight.
M
No
Pages 20-21
M
Threading is not
correct.
M
No
Pages 12-17
M
Wrong needle is
used.
M
No
Page 6
M
The combination
of needle size/
thread size/fabric
is incorrect.
M
No
Page 22
M
46