Pfaff 937

Adjustment
11.05.21 Lifting motion of the bottom feed dog
Requirement
With the stitch length set at “0“ and the needle bar position at 0.25 mm past tdc (hole 3)
the bottom feed dog must be at its upper point of reversal.
11 - 23
4
2
5
1
3
21
Fig. 11 - 22
● Loosen screw 2.
● Turn lifting eccentric 1 in accordance with the requirement.
● Tighten screw 2.
Lifting eccentric 1 must not be moved axially.