Performance Checklist - Bernina Bernette 56 Instruction Manual

Performance Checklist
Whenever sewing difficulties are encountered, review the section in this instruction manual that details the operation you are performing to make
sure you are correctly using the machine. If the problem continues, the following checklist may help you to improve the operation.
If you sti!! have difficulties, contact your nearest service center.
Upper threading
Lower thread is
Needle is incor-
is not correct. tangled.
rectly inserted.
..
No
Page 30
. .
No
Page 29
~
..
No
Page 8
~
Bobbin is not
Upper thread is threaded properly Inferior needle is
tangled. in the shuttle
used.
hook.
. .
No
Page 30
t
No
Page 29
t
No
Page 8
Upper thread
tension is too
tight.
Lower thread
tension is too
tight.
The combination
of needle size/
thread size/fabric
is incorrect.
..
No
Page 37
..
No
Page 37
..
No
Page 39
'
Spool of thread is
not correctly
installed.
Lower threading is
not correct.
Lint is clinging to
the bottom of the
needle plate.
..
No
Page 30
..
No
Page 29
..
No
Page 69
~
Needle is bent or Threading is not
not sharp. correct.
..
No
Page 8
t
No
Pages 29-30
The combination
of needle size/
thread size/fabric
fs
incorrect.
..
Page 39
No
•
' '
•..
~"
--
•,
'
Thread tension is
incorrect.
t
Page 37
No
Thread tension is
too tight.
..
Page 37
No
Threading
IS
not
correct.
Pages~9-30
No
~
Wrong needle is
used.
..
Page 8
No
The combination
of needle size/
thread size/fabric
is incorrect .
..
Page 39
No
70