Bobbin Case Opener Stroke - Pfaff 1471 E1 Instruction Manual

13.

Bobbin case opener stroke

04.12
Requirement
With bobbin case being pushed away as far as possible by the bobbin case opener, the
projection of the bobbin case must protrude 0.3 - 0.5 mm from the rear edge of the
needle plate recess.
Fig. 13 - 11
Turn the handwheel until the bobbin case opener pushes the bobbin case away as far as
possible.
Move the bobbin case base ( screw 1 ) in accordance with the requirement.
Carry out the same adjustment on the right post if using the 1474E1 model.
This setting can vary according to the thickness of the thread.
Adjustment
0.3 - 0.5 mm
1
13 - 16