Zeroing The Differential Feed (Front Feed Dog) On The Pfaff 3704-2 - Pfaff 939 U Instruction Manual

Adjustment
12 Zeroing the differential feed (front feed dog)
.05.22
● Set the stitch length at "0".
● Set both levers 1 at "0".
● While constantly turning the balance wheel, adjust crank 2 (screw 3) in accordance with
● Carry out a control check in accordance with the requirement.
12 - 24
Requirement
When the stitch length is set at "0" and both levers 1 set at the "0" position, the differential
feed dog 4 should not make any feeding movement when the balance wheel is turned.
112-037
Fig. 12 - 23
the requirement.
1
1
on the PFAFF 3704-2/..
112-039
3
2
4