Adjusting The Moment Tension - Pfaff 3307-3 Series Instruction Manual

Adjustment
13

Adjusting the moment tension

.35
● Turn eccentric 1 (screws 2) in accordance with requirement 1.
● Adjust tension disks 3 (screw 4) in accordance with requirement 2.
102
Requirement
1. When the needle bar is at its t.d.c. eccentric 1 should be positioned with its largest
eccentricity towards the top.
2. Tension disks 3 should open approx. 10 mm before t.d.c. needle bar and close again
approx. 10 mm after t.d.c. needle bar.
Fig. 13 - 33
2
3
4
1