15
MECHANICAL ADJUSTMENT
TOP TENSION
The top tension should be between 75 to 90 gf when pulling the thread (polyester sewing thread #50 (white)) up
in the direction of arrow (Make sure the the foot is lowered) with the tension dial at “4”.
If the tension is out of the range, adjust as follows:
1. Remove the front cover (Refer to page 6).
2. Set the tension dial at “4”.
3. After threading the upper thread, lower the presser foot.
• If the top tension is too tight, turn the lead screw in the direction A.
• If the top tension is too loose, turn the lead screw in the direction B.
4. Check the top tension and attach the front cover.
Polyester sewing thread #50 (white)
Pull the thread at the speed of 110 mm/sec in the direction of arrow.
