Pfaff 3334 User Manual

] = Roller
2 = Roller stud
3 ~ Feed across regulator
4 = Boll screw stud, upper
5 = Hinge stud
6 = Ball joint connection
7 = Boll stud, lower
8 = Feed across shaft
9 = Feed across shaft crank,
rear
Fig. 7 Feed across motion (cross section)
The groove on the inside face of the feed cam controls the feed motion
lengthwise of the machine bed. A roller which rides in this groove imparts
a reciprocating motion to the fwo-ormed feed regulator (Figs. 8& 9). The feed
regulator has a slot milled into its back side which accommodates the feed
regulator post. Both the feed regulator and the feed regulator post are
connected by o swivel (Fig. 8) which is held in place by a clamp and a
regulating screw. The more this swivel is moved downward, the larger will be
the effective arm of the feed regulator. And, conversely, the more the swivel
is moved upward, the smaller will be its effective orm. This device makes it
possible to adjust the amount of lengthwise travel of the feed plate carrier
bor.
Since both the work clomp and the feed plate are mounted on the feed
plate carrier bor and the workpiece is held in place between these parts, it is
moved positively from one stitch position to the next.
16
From the library of: Superior Sewing Machine & Supply LLC

Pfaff 3334 Specifications

General

Brand	Pfaff
Model	3334
Category	Sewing Machine
Language	English