14
MECHANICAL ADJUSTMENT
TOP TENSION
The top tension should be between 65 and 80 g when pulling the thread up in the direction of arrow.
* Use polyester sewing thread #50 (White).
* If it is not within the above limit, adjust as follows.
1. Set the tension dial “4”.
2. Remove the face cover and front cover. (See page 4 and 6.)
3. Lower the presser foot.
• If the top tension is too loose, turn the lead screw in the direction (A).
• If the top tension is too tight, turn the lead screw in the direction (B).
4. Check the top tension and attach the cover.
White polyester thread size 50
Pull the thread at the speed of 110 mm/sec in the direction of arrow
Cover
Содержание J30
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