Pfaff 141 User Manual

17. Adjusting the trimmer
To take out the trimming knife for sharpening, loosen set screw C (Fig. 19) swinq the
knife halfway between its operative and inoperative positions and pull the knife out
of Its guide. As you replace the knife, make sure its cutting edge bears lightly against
the edge of the needle plate slot which serves as a guide. However, the knife must
never be set too close to this edge as this might cause the knife to jam as it is thrown
out of action. When the setting is correct, tighten set screw C securely.
The cutting stroke of the knife should be exactly halved by the needle hole. To adjust
the position of the cutting edge in relation to the needle hole, loosen nut M (Fig 19)
and move the knife carrier forward or backward, as appropriate. This setting also
applies to knives which have been resharpened repeatedly. After the adjustment tighten
lut M securely. . y ci.
The vertical position of the knife is adjusted by screw S (Fig. 19). Turn this screw clock
wise to set the knife lower, or counter-clockwise to set it higher. The knife is set cor
rectly, If Its cutting edge is positioned just above the bottom of the needle plate guide
Fig. 19
From the library of: Superior Sewing Machine & Supply LLC

Pfaff 141 Specifications

General

Brand	Pfaff
Model	141
Category	Sewing Machine
Language	English