Adjustments; Lower Thread Tension - Husqvarna VIKING E10 Service Manual

Lower thread tension

Check
Set the bobbin in the bobbin case and pass a thread through the tension spring.
The lower thread tension should be between 25 and 40 grams when pulling the thread in the
direction of (A).
Adjustment
1. If the lower thread tension is too tight, turn the adjusting screw in the direction of (C).
2. If the lower thread tension is too loose, turn the adjusting screw in the direction of (D).
( A )
( D )
( C )
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