Pfaff 3704-2/03 - Torsion Spring of the Differentiation Regulating Shaft (on the PFAFF 939 U)

Justierung
31
Fig. 1 - 26
1.05.25 Torsion spring of the differentiation regulating shaft (on the PFAFF 939 U)
● Turn torsion spring 1 (screw 2 ) in accordance with the requirement using nut 3.
Requirement
With the presser foot raised, the stitch length set at "0", adjustment wheel 4 at + 4.5 and
adjustment wheel 5 at "0", guide pin 6 must be touching in connecting link 7.
2
3
1
5
4
7
6