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5-10-3 Tension disk opening amount
○
Remove the face cover, thread tension cover
and the spool cover.
Adjustment procedure
1. Maximize the tension with the thread tension
adjustment dial. Raise the presser foot lifting lever.
2. Adjust the clearance between tension disks (A)
and (B) to 1 mm by turning the thread tension
oatadjustingscrew.
5-10-4 Base tension opening amount
○
Remove the face cover, the thread tension cover and the spool cover.
Adjustment procedure
1. Raise the presser foot lifting lever.
2. Adjust the base tension opening amount to 1 mm by turning the base tension adjusting screw.
Disk A
Disk B
1 mm
1 mm
Base tension
adjusting screw
Pretension disk
Thread tension
disk oat adjusting
screw
Pretension disk
oat adjusting
screw
Tension disk oat
adjusting screw
* The pretension disk oat adjusting screw and the tension disk oat adjusting screw can be
turned without loosening the nuts.