Adjusting Tension Release Mechanism - Bernina Deco 330 Manual

Deco 330

Adjusting Tension Release Mechanism

When the presser foot lifter is raised, the tension release mechanism should work correctly.
If not, adjust as follows.
1
2
3
2
4
5
6
1 Remove the front cover unit. (see page 6)
2 Lower the presser foot lifter, set the thread tension dial
at "9" and loosen the Screw 1 .
3 Adjust the play between the tension release rod (2)
3 and the Spring holder 4 approximately 0.3 - 0.5
mm and tighten the Screw (A) 1 .
4 Raise the presser foot lifter, turn the thread tension
dial from "9" to "0", make sure the tension disc 5
should open 1.0 mm 6 .
5 Reattach the front cover unit.
1
Screw
2
Tension release rod (2)
3
Play (0.3 - 0.5 mm)
Spring holder
4
Tension disc
5
6 Clearance (approximately 1.0 mm)
15