With the looper thread tension adjustment lever, fine adjustments can be made to the looper thread tension. When sewing stretch fabric or with a small stitch length, raise the lever to increase the tension of the looper thread. When sewing non-stretch fabric or with a large stitch length, lower the lever to reduce the tension of the looper thread.

(1) Raise the lever to increase the tension of the looper thread.
(2) Lower the lever to reduce the tension of the looper thread.
(A) Looper thread tension adjustment lever

Non-stretch fabric such as serge

Reduce the tension of the looper thread.

Lever position: Center		Lever position: Down

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Stretch fabric such as smooth knit

Increase the tension of the looper thread.

Lever position: Center		Lever position: Up