– 23 –
1) Needle thread tension
Turn thread tension nut No. 2
❶
clockwise to increase or counterclockwise to reduce the needle thread
tension.
2) Bobbin thread tension
Turn tension adjusting screw
❷
clockwise to increase or counterclockwise to reduce the bobbin thread
tension.
4-13. Thread tension
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power o and ascertaining that the motor is at rest.
❷
❶
[S type and G type]
[A type and F type]
❶
❷
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