Limiting The Knee Lever Stroke - Pfaff 939 U Adjustment Manual

Justierung
1

Limiting the knee lever stroke

.05.40
● Place the feed dog gauge under the presser foot with its recess facing downwards.
● Lower the presser foot onto the gauge.
● Loosen nut 1 and turn screw 2 out a few turns.
● Move the knee lever to the right until a noticeable resistance is felt, making sure that the
● Turn screw 2 in as far as it will go, then back out by one turn, and lock it in place with nut 1.
46
Requirement
When the knee lever is pressed the hand lever must drop automatically and the presser
foot must be just over 7 mm above the needle plate.
Fig. 1 - 41
presser foot is not lifted off the gauge, and hold it at this position.
1
2