Singer 321 KNITTER - Page 90

86
Nature
of
L.
rouble
Places
to
be
Inspected
Causes
Remedy
ne
stitches
on
the
both
edge
of
fabric
drop
Auto
-tension
If
you
continue
knitting
without
noticing
that
Tension
Spring
(a
spring
to
take
up
slack
yarn)
is
jumping
to
its
extremity
and
not
functioning,
the
yarn
gets
sagged
at
the
starting
point
of
knitting
and
Needles
can
not
pick
up
the
yarn,
making
stitches
come
off
Hooks.
(this
often
takes
place
when
you
change
yarn.)
Adjust
the
yarn
tension
by
Auto
Tension
Dial
See
Instruction
Manual
page
7
Check
if
yarn
is
correctly
threaded
through
Auto
-Tension
If
yarn
is
wrongly
threaded
through
Auto-
Tension
the
yarn
becomes
sagged
and
stitches
come
off
Hooks
due
to
insufficient
yarn
tension
Instruct
an
operator
a
correct
threading
of
yarn
through
Auto
-Tension.
See
Instruction
Manual
page
6
Spacing
random
open
holes
in
a
knitted
fabric
(Dropped
stitches)
Check
how
Needles
get
their
latches
opened
and
closed,
When
the
Latches
of
Needles
do
not
open
or
close
smoothly,
stitches
drop.
Correct
the
latches
so
that
they
open
and
close
smoothly.
If
irremediable,
replace
the
Needles
with
new
ones.
See
Instruction
Manual
page
78
Check
the
clearance
between
Fabric
Presser
and
Needles
(P.N.
Clearance)
If
there
is
a
clearance
between
Fabric
Presser
and
Needles,
Needles
become
lower
in
position
than
the
standard
position,
and
Y.S.
(Yarn
Feeder
and
Sinker)
clearance
becomes
wider.
So
the
needles
can
not
catch
the
yarn.
Adjust
the
P.N.
Clearance.
See
page
68
k