14
Deco 330
Adjusting Needle Thread Tension
The standard upper thread tension should be 51 to 59 grams when the tension dial
is set at “3”, measured with a #50 polyester thread being pulled at approximately110
mm/sec. in the direction of arrow.
1SettheThread tension dial at “3”.
2Lower the presser foot.
3Removethefrontcover unit and adjust the thread
tension.
(A) If the thread tension is more than 59 g
................... turnthescrewinthedirectionof“B”.
(B) If the thread tension is less than 51 g
.................. turnthescrewinthedirectionof“A”
1
Pulling direction: (Pulling speed 110 mm/ Sec.)
4Attachthefrontcover unit.
(A)
(B)
1
To Next Page
Loading...
