Torsion Spring Of The Reverse Feed Lever (On The Pfaff 939 U) - Pfaff 939 U Adjustment Manual

Justierung
1 Torsion spring of the reverse feed lever
.05.23 (on the PFAFF 939 U)
Requirement
With the presser foot raised, the longest stitch length set and the adjustment wheels 4 at
"0", the reverse feed lever 5 must return automatically to its uppermost point after being
activated.
4
2
3
1
5
Fig. 1 - 24
● Turn torsion spring 1 (screw 2 ) in accordance with the requirement using nut 3.
29