3. Threading the machine head
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the follow-
ing work after turning the power off and ascertaining that the motor is at rest. If threading is wrong, stitch
skipping, thread breakage, needle breakage or irregular stitches will be caused. So, be careful.
Thread the machine head according to the following threading illustrations.
❸
B
C
When covering thread is excessively
loosened = B
When covering thread is excessively
loosened even after passing B = C
E
Broken line E when using more
stretchable thread
❶
❷
❶
When covering thread is
excessively tense = D
❷
D
– 11 –
❸
When using more stretchable thread