Singer 246K21 Manuel utilisateur
Form
K6330
(558)
Supplement
to
Form
K6195
SERVICE
MANUAL
FOR
SINGER
SEWING
MACHINE
246K21
REVISED DESCRIPTION FOR 246K20
MACHINE
Machine
246K20
has
two
needles
and
two
loopers
and
is
fitted
with
a
trimmer
for
simultaneously
trimming
and
ovcredging
bathing
suits,
house
dresses
and
similar
articles. It
makes
a strong four-thread chain stiteh
consisting
of
oyeredge
stitching
and
a
single
line
of
reinforcing
stitching
running parallel and
close
to the
ovcredging
on the upper
side
of the fabric.
Clearance under presser foot is 1/4 inch.
Needle
gauges
are
.109
(7/64)
inch
and
1/16
inch.
Unless
otherwise
ordered, the
machine
will
be
furnished
with
needle
gauge
of
.109
inch.
The
machine
is
equipped
with
a
small
"horn"
beneath
the throat
plate
to
aid
ID
tubular
work.
The
trimmer
can
he
adjusted
to
trim
from
3/32
inch
to
7/32
inch
from
the
needles.
The
knife
trims
ahead
of
the
needles.
The
machine
can
be
fitted
for
a
bight
from
3/32
inch
to
5/32
inch,
depend
ing
upon
the
material
and
the
thread
in use.
...
t'le
machine
is regularly
furnished
with a foot lifter, a
knee
lifter
wll
be furnished instead, when specified on order.
The
presser
foot
can
be
readily
thrown
out of
operaliiu'
jio.sition
to
prevent
interference
when
threading
the
machine
or
replacing
the
needles.
From the library of: Superior Sewing Machine & Supply LLC
The
elotli
plate
can be
swung
out
170° to
the
left of
the
needles, to
facilitate
adjustment
of tlie
machine.
The loopers are independently driven,
permitting
variations
in
their
adjustment in relation to each other and to the needles, to suit the work
being
sewn.
The Splash lubricating system
automatically
and continuously oils
the
principal ])carings, during the
operation
of
the
machine. This oiling
system
also includes an oil
sight
gauge
in
the
front
of
the
machine,
to
indicate
the
oil level to the
operator,
and an oil cooling
tank
in
the
rear
of
the
machine.
Sec X-Ray view of machine on pages 12 and 13 Form K6195.
Thread
Unwinder
Complete 151163 is
regularly
furnished
with
the
machine.
Machine
Pulley
164231, for 3/8
inch
V-belt,
furnished
with
the
machine,
may
also be used for 5/16 inch
round
belt.
246K21
MACHINE
Machine
246K21
is
similar
to
Machine
246K20
except
that
it
has
a
greater
looper stroke
and
astraight top knife.
The
iniichine
is
designed
for
trimming
and
ovcrcdging
medium
and
medium
heavy
fabrics.
The
distance
between
the
two
needles
is
fixed
at
.109
inch.
NEEDLES
AND
THREAD
NOTE
t
Distance
between
needles
on
246K20
Machine
can
be
.109
inch
or
1/16
inch
as
requested.
Machine
246K21
has
this
distance
fixed
at
.109
inch
only.
From the library of: Superior Sewing Machine & Supply LLC
TO
SET
THE
FEED
DOGS AT
THE
CORRECT
HEIGHT
(Page
15)
Gauge
164883
tiiiperscdcs
164460.
10
SET
THE
NEEDLE CARRIER AT
THE
CORRECT HEIGHT
(Page
16)
Gauge 164883 supersedes 164460
TO SET
THE
LEFT
LOOPER IN RELATION TO
THE
NEEDLES
(Page
18)
Gauge 164883 supersedes 164460.
TO SET THE RIGHT LOOPER IN RELATION TO THE NEEDLES
(Page
19)
Gauge 164883 supersedes 164460
From the library of: Superior Sewing Machine & Supply LLC
TO
ADJUST
THE
STATIONARY
KNIFE
FOR
WIDTH
OF
BIGHT
K4862
L6
F6
G6
Fig.
29.
Adjusting
Width
of
Bight.
The
position
of the
trimmers
in
relation
to the
needles
determines
the
width
of
bi<jht.
To adjust,
loosen
the
screw
A6,
Fig. 29, and
move
the
movable
knife
holder
B6,
Fig.
29,
to the right. Then
loosen
the
screw
C6,
Fig.
29,
and
move
the
stationary
knife
holder
D6,
Fig.
29,
to
the
left
or
right
as
rci]uircd.
Securely
tighten
the
screw
C6.
Now
with
the
eiitting
edge
of
the
movable
knife
E6, Fig. 30, at its
lowest
position,
i.e., slightly
below
the
rutting
edge
of
the
stationary
knife
F6,
Fig.
29,
move
the
knife
holder
B6,
Fig.
29,
to
the
left
against
the
stationary
knife
F6.
Tighten
the
screw
A6,
Fig.
29.
Contact
pressure
between
the
stationary
knife
and
the
movable
knife
is adjusted
tinder
'"To
Replace
the
Movable
Knife",
page
6.
From the library of: Superior Sewing Machine & Supply LLC
M6 M7
Fig.
30.
Adjusting
the
Trimmer.
TO
REMOVE
THE
STATIONARY
KNIFE
To
remove
the
stationary
knife
F6,
Fig.
29,
loosen
the
clamping
screw
G6,
Fig.
29,
and
draw
the
knife
F6
upward
and
out.
TO
REPLACE
THE
STATIONARY
KNIFE
To
replace
the
stationary
knife
F6,
Fig.
29,
push
the
knife
down
into
the
knife
hohler
D6,
Fig.
29,
until
the
cutting
edge
is flush
with
the
top
of
the
throat
plate
H6,
Fig. 30.
Tighten
Screw
G6,
Fig.
29.
TO
REMOVE
THE
MOVABLE
KNIFE
To
remove
the
movahic
knife
E6,
Fig.
30,
remove
the
clamping
si-rew
A6,
Fig. 29,
and
the
knife
holder
B6, Fig. 29.
Then
loosen tiic screw K6, Fig. 29,
and
withdraw
the
knife
E6.
From the library of: Superior Sewing Machine & Supply LLC
TO
REPLACE
THE
MOVABLE
KNIFE
To replace
the
movable knife E6, Fig. 30,
insert
the
knife into the knife
holder B6, Fig. 29,
and
tighten
scrc\v K6, Fig. 29. Replace tlic knife holder
B6 and
the
clamping screw A6, Fig. 29, and move
the
knife holder to the left
until
the
movable
knife
E6
contacts
the
stationary
knife
F6,
Fig.
29.
Tighten
clamping
screw
A6.
Turn
the
machine
pulley
over
from
yon
until
the
movable
knife E6,
Fig. 30, is at the lowest
point
of its stroke. In this position loosen the screw
K6, Fig. 29,
and
raise or lower
the
knife E6
until
the
highest
point
of
its
bevelled
cutting
edge is
just
below the
cutting
edge of the
stationary
knife
F6, Fig. 29.
Tighten
the
screw K6. Now loosen
the
screw C6, Fig. 29,
sufficiently to release the spring behind the
stationary
knife holder D6,
Fig. 29,
permitting
the
stationary
knife F6 to
make
tight
spring
contact
with
tlte
movable
knife
E6.
Securely
tighten
the
set
screw
06.
With
the
movable
knife E6, Fig. 30
at
the
lowest
point
of
its
stroke,
cheek
alignment
of
knives
E6
and
F6.
Should
the
cutting
edges
of
the
knives
gape
at
their
forward
ends
(point
nearest
operator)
loosen
the
screws
L6
and
C6,
Fig. 29
and
M6, Fig. 30.
Then
turn
in screw M7, Fig. 30
until
the
cutting
edges are
correctly
aligned.
Tighten
the
screws M6, L6 and €6 in
this
order.
Verify
alignment
of
knives.
Should
the
cutting
edges
gape
at
their
rear
ends
(point
away
from
oper
ator)
rci)cat
the
above
instructions
but
reverse
the
procedure
with
screws
M6
and
M7,
Fig.
30,
i.e.,
loosen
screw
M7
and
turn
in
screw
M6
until
correct
alignment
of
knives
has
been
obtained,
then
tighten
screw
M7.
THE
SINGER
MANUFACTURING
COMPANY
•A
Trade
Mark
of
THE
SINGER
MANUFACTURING
COMPANY
All
Rights
Reserved.
Printed
in
Great
Britain
From the library of: Superior Sewing Machine & Supply LLC
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