Pfaff 3334 User Manual

Bobbin thread knife
Cutting
edge
Polished
Needle thread knife
Cutting
edge
Polished
Fig. 51 How to shorpen the knives
(6) Adjusting the Stroke of the Thread Check Spring
The thread check spring performs the function of thread control, i.e. it
retains the excess thread which is created as the take-up lever descends
(but is not yet needed), and holds it back until the needle enters the goods.
The stroke of the thread check spring is checked by a stop and can be
adjusted by rotating this stop, as may be required. To do this, loosen the
set screw and turn the stop to the right or left, as appropriate.
The check spring is set correctly if it has completed taking up the balance
of the thread when the needle stitches into the fabric.
Needle and Thread Chart
Needle
Size
Thread Weight
Needle
Size
Thread Weight
70
Cotton
100/4
100
Cotton
40/4
Silk
A Silk C & D
Nylon
00 Linen 80-90
Nylon
D
80
Cotton
60/4
no Cotton
36/3
Silk A & B Silk
D
Nylon
0
Linen
60-80
Nylon
D
90
Cotton
50/4
120 Cotton
30/3
Silk 3 & C Silk
D
Nylon C
Linen 60/3
Nylon
F
59
From the library of: Superior Sewing Machine & Supply LLC

Pfaff 3334 Specifications

General

Brand	Pfaff
Model	3334
Category	Sewing Machine
Language	English