Adjusting The Bobbin Thread Tension - ELNA eXpressive 970 Service Manual

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Rear view
Guide path
Thread
Side view
Front hole
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Adjusting the Bobbin Thread Tension

Adjusting screw
Tension meter
Front hole
* Use cotton thread size 120.
1. Guide the thread to the left to pass it into the guide
path as shown.
2. Pulling the thread from the front hole in the direction
of arrow, measure the thread tension with a tension
meter.
The thread tension should be in the range of 20 - 30gf.
If not, adjust the thread tension by turning the
adjusting screw.
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