Pfaff 3334 User Manual

Since minor deviations connot be entirely eliminated in machining the feed
cams, double-check the feed motion setting {see adjustment procedure on
poge 39). The some applies to the adjustment of the thread nipper ond the
stop tripping segments (see adjustment procedures on pages 53 and 52,
respectively),
b. Changing the Knife Com
Take out screws a on the lifting lever guide and remove the guide, Then take
out screw b in the knife bar tripping lever bracket, and swing the lifting
lever away. Loosen screw c and drive out toper pin d. Remove the knife com
with its positioning flange, and mount the new knife cam in reverse order
(Fig. 64).
70
1 = Lifting lever guide
2 = Knife cam positioning
flange
3 = Knife cam
4 = Knife bar tripping lever
5 = Knife bar
6 = Knife bar tripping fork
7 = Lifting lever
Fig. 64 Exchanging the knife cam
From the library of: Superior Sewing Machine & Supply LLC

Pfaff 3334 Specifications

General

Brand	Pfaff
Model	3334
Category	Sewing Machine
Language	English