Alfa Network 233 - Presser Foot Pressure and Fabric Feed Adjustment

13
When
the upper and
lower tensions
are properly
balanced,
a
perfect stitch
will be formed
with both
threads interlocking
in fabric
(Fig.
15).
Fig. 15
When the upper
tension is too tight, the lower thread
is pulled . ,.
up over
the upper thread
which is
lying flat on the
fabric (Fig.
16).
'
When the upper
tension
is too loose
the upper thread
forms
loops
over the
lower
thread
lying
flat on
the fabric
IFig.
17).
Fig. 16
Fig. 17
ADJUSTING
THE
'PRESSOMATIC'
AND
THE FEEDING
OF
THE FABRIC
For general
Straight
and Zig-Zag
sewing the
pressure
on the
Presser Foot
(controlled
by the
'Pressomatic' Fig.
18) should be at
maximum i.e.
with the centre
Press gap fully
depressed. The
Drop-Feed
control
(Fig. 19) should
be set at
'NORM'
i.e. with the
Feed Teeth
at their highest
,
point,
Further
information
about
adjustments
for
setting
the 'Pressomatic'
can be
found on Page
15
Fig. 18
Fig. 19