Pfaff 467 User Manual

The grade of thread used plays an important part in meeting these requirements. Sheer fabrics
call for a thin and soft thread, while stiff and resistant threads, because of their low resilience,
are unsuitable for almost any fabric.
You will have to have a little experience in order to be able to tell which tension needs adjust
ment when you come across a seam as the one shown in Fig. 14, Here, the upper tension may
be too tight or the lower tension too weak. In Fig. 15, the upper tension may be too weak or
the lower tension too tight.
Fig. 14
Fig. 15
To determine the correct bobbin thread tension, hold the thread end between thumb and
forefinger and let the bobbin case hang freely. The tension should be strong enough to keep
the bobbin case from being pulled down by its own weight. However, as you jerk your hand
slightly, it should gradually slide down. Once the lower tension has been set correctly, the
upper tension can be regulated accordingly.
If, after the lower tension has been set correctly, the thread should form small knots or kinks
on top or bottom of the fabric, this condition can be corrected by adjusting the needle thread
tension.
Always lower the presser bar lifter before you adjust the upper tension. When the presser bar
is raised, it will automatically release the tension.
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From the library of: Superior Sewing Machine & Supply LLC

Pfaff 467 Specifications

General

Brand	Pfaff
Model	467
Category	Sewing Machine
Language	English