Operation Manual

Adjusting
the
differential
feed
on
the
Hobbylock
788
The
differential
feed
prevents
inter-ply
shift.
It
consists
of
two feed dogs,
arranged
one
behind
the
other,
which
both
pick up
and
move
the workpiece
at
the
same
time.
The
feed
amount
of
either
feed dog
can
be
set
separately.
It
is
possible
to
have
the
workpiece
moved
more
by
the
front
feed
dog
than
by
the
rear
one
and vice
versa.
Owing
to
that
very good
sewing
results
are
accomplished.
Set
the diffe
rential
feed
according
to
the material
you
wish
to
process
(see
table
on
page
22).
The
following
settings
are
possible
at
button
23:
Setting
0.5
=
Short
stroke
of
front
feed dog,
long
stroke
of
rear
feed dog
Setting
N
=
Same
stroke
of
both
feed dogs
Setting
1.5
=
Long
stroke
of
front
to
2
feed
dog,
short
stroke
of
rear
feed dog
The
differential
feed
can
be
set
infini
tely
from
0.5
to
2,
also
during
sewing.
Note:
The
following
variants
can be
employed
to
obtain
fashionable
effects
on
gar
men
t
s:
The
gather
effect
is
obtained
at
a
dif
ferential
feed
setting
of
1.5
—
2
when
light
fabrics
are
processed.
The
wave
effect
is
obtained
at
a
dif
ferential
feed
setting
of
0.5
when
medium
to
heavy
elastic
fabrics
are
processed.
21