Pfaff 3371-1 series - Needle Threading and Tension

Adjustment
14 - 23
14.24 Needle thread tension release
Requirement
After thread trimming the distance X between tension discs 3 should be 0.6 – 0.8 mm for
normal materials and 0.8 – 1.0 mm for heavy materials.
● Bring the machine into the cutting position by hand.
● Move lever 1 (screw 2) in accordance with the requirement.
Fig. 14 - 20
X
3
1
2