4.
Inserf
a
System
133
Ror
134
R
needle
into
the
ojiening
of the
needle
bar
and
push it up
as
far
as it will
go.
Make
sure
that
the
short
groove
faces
to the right.
5. Tighten needle
set
screw
a securely.
13.
Regulating
the
Length
df
Stitch
The
PFAFF
433 is fitted with a job-proven, spring-loaded stitch regulator
which
can
be
set
for the length of stitch
desired
,by turning thumb nut A
(Photo
2).
Once set, a special device will lock the, length of stitch so
that
it cannot inadvertently be changed while sewing. 1|he numbers on the scale
indicate
the stitch length in millimeters. By pushing
the
stitch
regulator
lever
up
as
far
as
it will
go,
the machine can be
set
tar
feeding
reverse.
Switching the machine to
reverse
stitching can be
done
either by
hand
or
by
foot
control. When letting go
of
the stitch
regulator
lever it will
auto
matically return to its initial position.
In
order to relieve the right leg which
/
Photo
13
14
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