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To replace needle thread tension unit
To remove:
1. Remove the face plate, top cover, thread guide cover
and arm thread guide (refer to pages 1, 5 and 6).
2. Lower the presser foot lifter.
3. Loosen the hexagonal socket screw.
4. Remove the thread release plate from the thread
release arm. Remove the thread tension unit.
To attach:
1. Follow the steps of removal procedure in reverse.
Hexagonal
socket screw
Thread
tension
release plate
Thread
tension
release arm
Thread
tension unit