Pfaff 3827-2 - Motion of Bobbin Case Opener

Adjustment
14 - 26
14.24 Motion of bobbin case opener
Requirement
With the needle bar 1.8 mm past its BDC (hole 4) the bobbin case opener 3 must be at its
right point of reversal.
● Adjust the bobbin case opener eccentric 1 (screws 2) in accordance with the
requirement.
231
Fig. 14 - 24