12 - 18
Adjustment
12.05.16 Differential feed synchronisation (only on the PFAFF 3704-2/..)
Requirement
When the stitch length is set at "1.5" and both levers 1 are in the "0" position, the two feed
dogs 5 should move the same distance when the balance wheel is turned.
● Set the stitch length at "1.5".
● Set both levers 1 at "0".
● Loosen screw 2.
● While constantly turning the balance wheel, adjust shaft 3 in accordance with the
requirement.
● Bring clamp crank 4 to its top position and tighten screw 2.
Fig. 12 - 17
112-012
112-037
1
1
112-038
5
2
4
3