Pfaff 481 Sewing Machine User Manual


 
PFAFF 25
20 Adjusting the knee lever motion
Requirement
When the knee lever is pushed by the full amount of its travel, there must be a clearance
as indicated in the table below between presser foot and needle plate and the presser bar
lifter should drop by its own weight.
Version A and subclass -731/..: 7 mm
Versions B and C: 9 mm
Turn stop screw 1 (nut 2) out a few turns.
Raise the presser bar lifter.
Place the 7-mm-thick or the 9-mm-thick blade of the gauge under the presser foot and
lower the presser bar lifter.
Push the knee lever until a noticeable resistance is felt; the presser foot must not yet lift
off the gauge. First turn in stop screw
1
(nut 2) fully, then back out by half a turn.
7/9 mm
2
1