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THREAD TENSION
Basic thread tension setting: “4”
To increase the tension, turn the dial to the next number up.
To reduce the tension, turn the dial to the next number down.
A. Normal thread tension - upper and bobbin thread join in fabric
B. Upper thread tension too loose - upper thread “loops” on the
underside of fabric
C. Upper thread tension too tight - bobbin thread “loops”on the top
side of the fabric
Note:
The bobbin thread tension does not normally have to be adjusted.