Adjusting Needle Thread Tension - ELNA 9500 Service Manual

The standard upper thread tension should be 59 to 67 grams when the machine is set for
pattern No.1 and the tension dial is set at "AUTO", measured with a #50 polyester thread
being pulled at approximately 110 mm/sec. in the direction of arrow.
q

Adjusting Needle Thread Tension

1 Turn the power switch "ON" and select the pattern
No. 1. Press the needle up/down button twice.
2 Set the thread tension [3.4] by pressing "ADJUST" key.
2 Lower the presser foot.
3 Open the face cover and adjust the thread tension.
(A) If the thread tension is less than 59 g,
.................turn the screw in the direction of " – ".
(B) If the thread tension is more than 67 g,
...............turn the screw in the direction of " + "
q
Pulling direction: (pulling speed 110 mm/sec.)
27
9500