6
MECHANICAL ADJUSTMENT
THREAD TENSION
The standard upper thread tension should be 75 - 90 g when pulling the thread (white color
cotton thread #50) in the direction of the arrow with the tension dial set at 4. (Make sure
the presser foot is lowered.) If the tension is out of the standard range, adjust it as follows:
1.
Remove the front cover (see page 4).
2.
If the thread tension is too tight turn the adjusting dial in the direction of (A).
If the thread tension is too loose turn the adjusting dial in the direction of (B).
3.
Check the thread tension and attach the front cover.
Summary of Contents for JEM GOLD 660
Page 1: ...SERVICING MANUAL JEM GOLD 660...
Page 19: ...18...
