Torsion Spring Of The Differentiation Regulating Shaft On The Pfaff 3704-2 - Pfaff 939 U Instruction Manual

Adjustment
12 Torsion spring of the differentiation regulating shaft
.05.26
● Turn torsion spring 1 (screw 2) in accordance with the requirement using nut 3.
12 - 28
Requirement
When the presser foot is raised, the maximum stitch length set, lever 4 raised to its top
position and lever 5 set at "0", the pointer 6 should be touching lever 4.
3
2
1
Fig. 12 - 27
on the PFAFF 3704-2/..
4
6
5
112-018