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UnionSpecial 57100 Series Instruction sheet

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®
F
INEST
QUALITY
ST
YLES
57
100 c
CATALOG
No.
T141
M
Price
$1.00
INDUSTRIAL
SEWING
I
MACHINES
CLASS
57100
ADVANCED
HIGH
SPEED
FIFTY
THOUSAND
SERIES
FLAT
BED
MACHINES
UNION SPECIAL
CORPORATION
CHICAGO
From the library of: Superior Sewing Machine & Supply LLC
C a t a 1 o g N
o.
T 1 4 1 M
( S U P P L E M E N T T 0 C A T A L 0 G N
0.
1 3 1 M )
I N S T R U C T I 0 N S
F 0 R
A D J U S T I N G A N D 0 P E R A T I N G
L I S T 0 F P A R T S
F 0 R
S t y 1 e
5 7 1 0 0 c
F i r s t E d i t i o n
~
1 9 7 7
b y
S p e c i a 1 C o r p o r a t i o n
U n i o n
R i g h t s R e s e r v e d i n A 1 1 C o u n t r i e s
UNION SPECIAL
CORPORATION
INDUSTRIAL
SEWING
MACHINES
CHICAGO
P r i n t e d i n
U.
S.
A.
2
April,
1977
From the library of: Superior Sewing Machine & Supply LLC
IDENTIFICATION
OF
MACHINES
Each
UNION
SPECIAL
machine
is
identified
by a
Style
numb
er on a name pl
ate
on
t he m
achi
ne .
Style
numbers
are
classified
as
standard
and s p
ecial
.
Sta
ndar d
Styl
numb
ers
h
ave
one
or
more
letters
suffixed
,
but
never
co
n
ta
in
t he
le
t
ter
"Z
".
E
xa
m
ple
: "
Style
57100 C
".
Special
Style
number s
contai
n t he l
ette
r "Z
".
\.Jh
en on
ly
minor
cha
nges
ar
e made
in
a
standard
ma
chi ne , a "Z"
is
suffixed
to
the
standard
Style
number.
Examp
le
:
"Styl
e 57100 CZ".
Styl
es
of
ma
chi n
es
similar
in
c
onstru
c
ti
on
ar
e
grouped
under
a
class
numb
er
wh
ich
d
iff
er
s from the
style
number,
in
that
it
c
ontains
no
letters.
Example :
''Cla
ss
5
71
00
".
APPLICATION
OF
CATALOG
T
his.catalo
g
is
a
supplem
e
nt
to
Catalo
g No.
131M.
Second
Edition,
and
should
be
use
d
in
conjunction
therewith.
Only
thos
e
parts
wh
i
ch
are
used
on
Style
57100
C, but
not
used
on
Style
57700
N
are
illustrated
and
list
ed
at
the
back
of
this
book.
For
cl
ari
ty,
certain
57700 N
parts
ar
e shown
in
phantom
to
assist
in
locating
th
e 57100 C
pa
r
ts.
Opposite
the
i l
lustration
pages,
parts
are
identified
by a
reference
number,
part
number,
description
and amount
required.
Any
part
that
is
a
component
of
another
part
is
indicated
by
indenting
its
description
under
the
description
of
the
assembly
or
base
part.
Always
use
the
part
number
in
the
second
column,
never
use
the
refer-
ence
number
in
the
first
column when
ordering
repair
parts.
This
catalog
applies
specifically
to
the
Standard
Style
of
machine
as
listed
herein.
It
can
also
be
applied
with
discretion
to
some
Special
Styles
of
machines
in
these
classes.
References
to
direction,
such
as
right,
left,
front,
back,
etc.,
are
given
from
the
operator's
position
while
seated
at
the
machine.
Operating
direction
of
handwheel
is
toward
the
operator.
STYLE
OF
MACHINE
Advanced High
Speed,
Two
needle,
One
Looper,
Plain
Feed
Flat
Bed
Machines,
Medium
Throw,
Needle
Bearing
Needle
Bar
Drive,
Light
Weight
Presser
Bar
and
Needle
Bar
Driving
Mechanism,
Single
Reservoir
Enclosed
Positive
Automatic
Lubricating
System,
Filtered
Oil
Return
Pumps
for
Head
and
Base,
Needle
Bearings
and
Bronze
Bearings
for
Feed
Bar
and
Feed
Rocker
Shafts,
Greased
and
Sealed.
Laterial
Looper
Travel,
Double
Disc
Take-up,
Large
Handwheel
and
Improved
Belt
Guard.
Prepared
for
use
with
Knee
Press
for
Presser
Foot
Lifter,
Equipped
with
Disc
Thread
Tensions,
Maximum
Work
Space
to
Right
of
~eedle
Bar
8
1/4
Inches
(209.6
mm).
57100
C
For
cording
operations
on
light
wei
g
ht
woven
and
knitted
fabrics,
without
cord.
Needle
spacing
or
g
~uge
is
.080
inch
(2.03
mm)
or
approximately
No.
5
gauge.
Standard
height
of
tucking
1/8
inch
(3.18
mm). Seam
specification
402-0S-1.
Type 108
GHS
needle.
Maximum
recommended
speed
6500
R.P.M.
NEEDLES
Each
UNION
SPECIAL
needle
has
both
a
type
number
and
a
size
number.
The
type
number
denotes
the
kind
of
shank,
point,
length,
groove,
finish
and
other
details.
The
size
number,
stamped
on
the
needle
shank,
denotes
the
largest
diameter
of
the
blade
,
measured
in
thousandths
of
an
inch
or
millimeters,
midway
between
the
shank
and
the
eye.
Collectively,
the
type
number
and
size
number
represents
the
complete
symbol,
which
is
given
on
the
label
of
all
needles
packaged
and
sold
by
Union
Special.
3
From the library of: Superior Sewing Machine & Supply LLC
NEEDLES
(Continued)
The
standard
needle
for
Style
57100
C
is
Type 108
GHS.
It
has
a
round
shank,
round
point,
extra
short,
double
groove,
struck
groove,
ball
eye,
ball
point,
spot
t-
e
d,
chromium
plated.
Available
in
sizes
080/032, 090/036,
100/040,
110/044,
125/049.
To
have
needle
orders
promptly
and
accurately
filled,
an
empty
package,a
sampl
e
needle,
or
the
type
and
size
number
should
be
forwarded.
Use
description
on
lab
e
l.
A
complete
order
would
read:
"1000
Needles,
Type 108
GHS,
Size
090/036".
Selection
of
the
proper
needle
size
should
be
determined
by
the
size
of
thread
used.
Thread
should
pass
freely
through
the
needle
eye
in
order
to
produce
a good
stitch
formation.
Success
in
the
operation
of
UNION
SPECIAL
machines
can
be
secured
only
by
use
of
needles
packaged
under
our
brand
name,~
,
which
is
backed
by
a
reputation
for
producing
highest
quality
needles
in
materials
and
workmanship
for
more
than
three-quarters
of
a
century.
4
From the library of: Superior Sewing Machine & Supply LLC
INSTRUCTIONS
FOR
MECHANICS
LUBRICATION
CAUTION!
Oi
l has b
ee
n
drained
from
the
main
reservoir
b
efo
r e
shipment
,
so
the
re
s -r-
voir
must
be f
ill
ed
to
the
proper
level
at
plug
scr
ew (A, F
ig
.
I)
as
indicated
on
oil
gauge
(B),
before
beginning
to
operate.
The
capacity
of
the
reservoir
i s 12 oun
ces
(340.2
gr.).
Run
machine
slowly
for
several
minutes
to
distribute
the
oi
l
to th
e
various
parts.
Full
spe
ed
operation
can
then
be
expected
without
damage.
RECOMMENDED
OIL
Use a
straight
mineral
oil
of a
Saybolt
viscosity
of
90
to
125
seconds
at
100°
Fahrenheit
in
the
main
reservoir.
This
is
equiv
alent
to
UNION
SPECIAL
specification
No. 175.
Fill
main
reservoir
at
plug
screw
in
upper
crank
chamber
cover
(A,
Fig.
1)
and
check
oil
level
at
gauge
(B).
Oil
is
at
maximum
safe
operating
level
when ne
edl
e
is
to
the
black
line,
located
to
the
right
of
"OPERATE"
zone,
marked "FULL".
Oil
should
be
added
when
needle
is
to
the
black
line,
located
to
the
left
of
"OPERATE"
zone,
marked
"LOW".
The recommended
oil
is
available
in
16
fluid
ounce
(453.6
gr.)
cans
No. 28604
R.
CAUTION!
It
is
improtant
that
these
machines
not
be
over
filled.
It
is
recommended
that
a new
machine,
or
one
that
has
been
out
of
service
for
an
extended
period
be
lubricated
as
follows:
Remov
e
the
head
cover,
clean
out
lint
and
directly
oil
the
needle
bar
link
and
the
needl
e
bar.
Replace
head
cover
as
no
further
hand
oiling
will
be
required.
Run
machine
slowly
for
several
minutes
to
distribute
oil
to
the
various
parts.
For
machines
in
operation
check
the
oil
for
dirt
and
lint
deposits
at
reasonable
intervals.
If
dirty,
change
the
oil.
An
oil
change
is
recommended
every
2000
operating
hours,
or
once
a
year.
Oil
may
be
drained
from
main
reservoir
by
removing
plug
screw
(C,
Fig.
1)
located
below
the
cloth
plate
at
front
of
the
machine,
or
by
removing
the
lower
crank
chamber
cover,
located
at
the
back
of
machine.
A
daily
check
before
the
morning
start
should
be
made,
to
see
that
the
oil
level
is
at
a
safe
operating
level,
as
outlined
in
the
first
paragraph.
Oil
which
has
gone
through
the
machine
is
filtered
and
pumped
back
into
the
main
reservoir,
making
too
frequent
oilings
unnecessary.
Excessive
oil
in
the
main
reservoir
may
be
drained
by
removing
plug
screw
(C,
Fig.
1)
located
below
the
cloth
plate
at
the
front
of
the
machine.
After
draining
oil,
wipe
the
hole
and
plug
screw
dry,
paint
hole
and
screw
with
a
little
gasket
cement,
and
re-assembly
screw.
NOTE:
Looper
avoid
and
feed
lift
eccentric
receive
oil
thru
the
mainshaft,
so
when
as
se
mbling
be
sure
oil
holes
in
the
eccentric
line
up
with
oil
holes
in
mainshaft
when
spot
screw
is
in
time
spot.
OIL
GAUGE
B
I
Fi
g. I
The
oil
gauge
is
set
at
the
factory
to
show
th
e
prop
er oi l l e
vel
in
the
r
ese
r-
voir.
Should
an
adjustment
become nece
ssary,
how
v
r,
th
e f
ollowin
g s
tep
s
shoul
d be
followed:
5
From the library of: Superior Sewing Machine & Supply LLC
OIL
GAUGE
(Continued)
1.
Place
the
machine
upright
on a
level
table
or
bench.
2.
Remove
the
oil
reservoir
plug
screw
(C,
Fig.
1) and
tip
machine
forward
to
drain
oil
from
the
reservoir.
3.
Make
sure
all
oil
is
drained
from main
reservoir.
4.
Remove
lower
crank
chamber
cover,
located
at
the
back
of
the
machine.
5.
Fill
main
reservoir
to
a
level
even
with
the
bottom
contour
of
the
knee
press
shaft
bushing
(D,
Fig.
1).
6.
Loosen
lock
nut
(E) on
the
calibrating
screw
(F),
and
turn
the
screw
to
the
left
or
right
until
the
gauge
needle
rests
on
the
black
line,
located
to
the
left
of
"OPERATE"
zone,
marked
"LOW".
7.
Tighten
lock
nut
(E) and
replace
plug
screw
(C) and
lower
crank
chamber
cover.
8.
Add
oil
so
that
gauge
needle
rests
on
the
black
line,
located
to
the
right
of
"OPERATE"
zone,
marked "FULL".
NEEDLE
LEVER
BEARING
OILER
Remove
the
head
cover
and
upper
crank
chamber
cover
(G,
Fig.
1).
Check
position
of
needle
lever
bearing
oiler
(A,
Fig.
2)
located
inside
the
arm
casting,
below
the
upper
crank
chamber
cover,
which
lubricates
the
needle
lever
stud
(B).
Make
sure
it
is
tilted
downwardly and
that
its
delivery
end (C)
contacts
the
inside
wall
of
the
bed
casting
at
the
back,
just
above
the
notch
of
the
needle
lever
shaft
bushing.
(Do
not
allow
the
oiler
to
rest
on
the
needle
lever).
Allow
1/64
inch
(.40
mm)
clearance
as
in
Figure
2.
Fig.
2
6
From the library of: Superior Sewing Machine & Supply LLC
CAUTION!
FILL
ALL
OIL
RESERVOIRS
BEFORE
STARTING.
MACHINE
HAS
BEEN
DRAINED
BEFORE
SHIPPING.
THREADING
AND
OILING
DIAGRAM
FOR
STYLE
57100 C
FILL
MAIN
RESERVOIR
HERE
FOR
CORRECT
OIL
LEVEL
NEEDLE
OF
GAUGE
SHOULD
BE
IN
OPERATE
POSITION
Fig.
3
Thread
machine
as
indicated
above.
The
looper
threading
has
been
en
t
arged
for
clarity.
The
oil
has
been
drained
from
the
machine
before
shipping
and
the
reservoir
must
be
filled
before
starting
to
operate.
Maintain
oil
level
in
"OPERATE"
position
and add
oil
when
needle
is
to
the
black
line
located
to
the
left
of
the
"OPERATE"
zone marked
"LOW".
The machine
is
automatically
lubricated
and no
oiling
other
than
keeping
the
main
reservoir
filled
is
necessary.
For
further
lubricating
instructions
refer
to
paragraphs
on
"LUBRICATION"
and
"RECOMMENDED
OIL".
7
From the library of: Superior Sewing Machine & Supply LLC
ALIGNING
THE
NEEDLE
BAR
Insert
a new
set
of
needles
(Type and
Siz
e
as
requi
red)
and
align
the
needle
bar
so
that
the
needles
correspond
with
th
e ver t
ic
al
fa
ce
of
the
needle
guard.
To
turn
needle
bar
(A,
Fig.
4),
loosen
needle
bar
clamp
sc
r ew (B)
and
turn
bar
as
re-
quired.
Tighten
clamp
screw.
SYNCHRONIZING
LOOPER
AND
NEEDLE
MOTIONS
Insert
the
looper
in
the
looper
rocker
and
turn
handwheel
in
operating
direc-
tion
until
the
point
of
the
looper
(A,
Fig.
5),
moving
to
the
left
is
even
with
the
left
side
of
the
right
needle
(B).
Note
the
height
of
the
eye
of
the
needle
with
respect
to
the
looper
point,
then
turn
handwheel
in
the
reverse
direction
until
the
looper
point
again
moves
to
the
left,
and
is
even
with
the
left
side
of
the
right
needle.
If
the
motions
synchronize,
the
height
of
the
eye
of
the
needle
with
respect
to
the
looper
point
will
be
the
same. A
variation
of
.005
inch
(.127
mrn)
is
allow-
able.
If
the
distance
from
the
eye
of
the
needle
to
the
point
of
the
looper
is
greatest
when
the
pulley
is
turned
in
the
operating
direction
move
the
looper
drive
shaft
synchronizing
stud
(C)
to
the
rear.
Moving
it
in
the
opposite
direction
acts
the
reverse
.
Moving
of
the
looper
drive
lever
shaft
synchronizing
stud
is
accomplished
as
follows:
Loosen
the
clamp
screw
(D)
of
the
looper
drive
lever.
To
move
stud
to
rear
(away
from
operator),
a
light
tap
with
a
small
hammer,
driectly
on
the
stud
is
all
that
is
re-
quired.
To
move
stud
forward
(toward
operator),
remove
the
cloth
plate,
throat
plate
support,
oil
reservoir
top
cover
and
oil
res-
ervoir
back
cover,
then,
a
light
tap
on
the
looper
drive
lever
rocker
shaft,
toward
the
operator,
is
all
that
is
required.
Note:
Looper
drive
lever
(E,
Fig.
5)
has
an
oil
seal
collar
and
an
"O"
ring
between
it
and
the
bed
casting.
All
end
play
must
be
removed
from
the
looper
drive
lever
rocker
shaft
by
compressing
the
"O"
ring
until
drive
lever
(E) and
the
oil
seal
collar
make
metal
to
metal
contact
with
the
bed
casting.
Tighten
screw
(D).
With
the
looper
at
the
extreme
right
end
of
its
travel,
Fig.
4
check
the
location
of
the
center
line
of
the
right
looper
connec-
Fig.
5
tion
rod
bearing,
using
gauge
No. 21227
CX.
Re-
move
nut
(F,
Fig.
5)
and
place
hole
in
g.
•1ge
over
threaded
stud.
The
left
end
of
the
gauge
should
locate
against
the
right
side
of
the
looper
rocker
cone
(G).
If
adjustment
is
neces-
sary,
loosen
the
clamp
screw
(D)
and
reposition
the
looper
drive
lever
(E)
as
required.
Ti
g
hten
clamp
screw.
If
gauge
is
not
available,
se
ttin
g
can
be
checked
with
a
scale.
The
distance
be-
tween
the
center
line
of
the
looper
rocker
con
e
and
the
center
and
the
center
line
of
the
loop-
er
lever
s
tud
should
be
4
1/16
inch
(103.19
mrn)
(Fi
g.
5).
8
From the library of: Superior Sewing Machine & Supply LLC
SETTING
THE
LOOPER
I
ns
er t t
wo
new ne
edles
in
the
needle
seat,
type
and
size
as
specified.The
loop
-
er g
au
ge
is
5/32
in
ch
(3.97
mm),
set
the
looper
(A,
Fig.
6)
so
the
distance
betw
ee
n
th
e
ce
nt
er of
th
e two
needles
(B)
to
the
point
of
the
looper
is
5/32
inch
(3.97
mrn),
wh
en
th
e
loop
er
is
at
its
farthest
position
to
th
e
right.Looper
gauge
No.
21225-5/32
can
be
used
advantageously
in
making
this
adjustment.
If
adjustment
is
required,
loosen
nut
(C,
Fig.
6)
(it
has
a
left
hand
thread)
and
nut
(D)
on
connecting
rod
(E),
turn
the
connecting
rod
forward
or
backward
to
obtain
the
5/32
inch
(3 .97
mrn)
dimension.
Retighten
both
nuts,
first
nut
(D).
Then
nut
(C).
Make
sure
the
left
ball
joint
is
in
vertical
position
and
does
not
bind
after
adjustment.
The
looper
is
set
correctly
in
line-
of-feed,
if,
as
it
moves
to
the
left,
be-
hind
the
needle,
its
point
(A,
Fig.
7)
brushes,
but
does
not
pick
at
the
rear
of
the
needle
(B).
If
adjustment
is
necessary,
loosen
lock
screw
(F,
Fig.
6)
and
turn
stop
screw
(G)
as
required.
Turning
stop
screw
clock-
wise
sets
the
looper
to
the
rear
and
turn-
Fig.
6
ing
it
counterclockwise
acts
the
reverse.
Fig.
7
Holding
looper
to
the
front
while
making
this
adjustment
may
prove
helpful.
Tighten
lock
screw
when
setting
is
obtained
and
recheck
th
e
adjustment.
SETTING
HEIGHT
OF
NEEDLE
BAR
The
height
of
the
needle
bar
(A,
Fig.
8)
is
correct
when
the
top
.
of
the
left
needle's
eye
is
1/64
inch
(.40
mrn)
below
the
underside
of
the
looper,
wh
en
the
point
of
looper,
moving
to
the
left,
is
ev
en
with
the
l e
ft
side
of
this
needle.
If
adjustment
is
necessary,
loosen
screw
(B)
and
reposition
needle
bar
(A)
up
or
down
as
required
and
retighten
screw.
Care
must
be
taken
not
to
disturb
the
align-
Fig.
9
ment
of
th
e
needle
bar
while
making
this
ad-
justm
e
nt,
as
the
ne
edl
es
are
to
have
equal
clearanc
e
on
both
th
e
right
and
left
sides
of
the
needle
slots
in
throat
plate.
SETTING
THE
LOOPER
AND
LOOP
RETAINER
Th
e
loop
er
and
loop
r e
tainer
ar
e
set
c
orr
ec
tly
wh
en
th
e
followin
g
conditions
prevail:
(1)
Turn
th
e handwh
eel
i n
th
e ope
r-
ating
direction
until
the
looper
(A,
Fig.
9)
moving
to
th
e
right
and
the
left
corner
of
the
recess
is
under
th
e
pron
g of
th
e
loop
Fi
g. 8
retainer
(B).
At
this
point
the
prong
shoul
d
proj
e
ct
1/64
inch
(.40
rnrn)
over
the
looper,
from
back
to
front
(Fi
g.
9).
I f
this
1/64
inch
(.40
rnrn)
cannot
be
obtained
then
th
e
distance
which
th
e
pron
g
pro
je
cts
over
the
corner
may
be
slightly
altered
by
loosenin
g
the
looper
set s
cr
ew (C) and a
pplyin
g
pressure
on
the
heel
of
the
looper
in
the
requir
ed
direction
whil
e r e
ti
g
ht
e
nin
g
th
e
screw.
The
point
of
the
looper
will
th
n
hav
e
to
be
reset
with
r e
sp
e
ct
to
th
e
back
of
th
e
ne
e
dles
by
adjusting
the
loop
er
rock
e
r.
9
From the library of: Superior Sewing Machine & Supply LLC
SETTING
THE
LOOPER
AND
LOOP
RETAINER
(
Co
ntinu
e
d)
(2.)
When
the
looper
moves
to
the
right
and
passe
s under
th
e
prong
of
the
loop
re-
tainer
there
should
be
a minimum amount
of
clearan
ce
bet
w
ee
n
the
top
of
the
looper
and
the
underside
of
the
prong,
or
just
enough
to
pe
rm
i t a
piece
of
paper
to
be
drawn
between
them.
The
adjustment
is
made by means
of
a
small
screw
(A,
Fig.
10),
that
passes
throu
gh
the
throat
plate
and
bears
against
the
top
of
the
loop
retainer.
SETTING
THE
FEED
DOG
Set
the
feed
dog
(A,
Fig.
11)
in
the
throat
plate
(B)
so
there
is
equal
clearance
on
all
sides.
See
that
the
tips
of
the
teeth
extend
the
depth
of
a
tooth
or
approximately
3/64
inch
Fig.
10
(1.19
mm)
above
the
throat
plate
and
are
parallel
with
the
throat
plate
at
high
point
of
travel.
Adjust
the
supporting
screw
(C),
under
the
feed
dog,
to
mainta
i n
this
setting.
Screw
(D)
is
used
to
hold
feed
dog
in
position.
If
feed
dog
teeth
are
not
parallel
with
the
throat
plate,
loosen
nut
(A,
Fi
g. 12)
and
turn
screw
(B)
clockwise
to
lower
the
front
teeth,
and
counterclockwise
to
raise
the
front
teeth.
Retighten
nut
when
feed
dog
is
set
properly.
CAUTION:
See
that
there
is
sufficient
space
between
underside
of
feed
dog
and
top
of
looper.
Should
it
be
necessary
to
move
the
feed
dog
to
the
left
or
right,
loosen
screws
(A,
Fig.
13)
which
hold
the
feed
rocker
(B)
onto
the
feed
rocker
shaft
(C),
and
move
feed
rocker
to
desired
position
and
retighten
screws.
Make
sure
the
feed
rocker
arm
(D)
does
not
bind
after
making
this
adjustment.
When
the
handwheel
is
turned
in
the
operating
direction
the
feed
dog
should
have
equal
clearance
on
both
ends
of
the
throat
plate
slots
with
feed
travel
set
to
desired
stitch
length.
Should
it
be
necessary
to
move
the
feed
dog
forward
or
backward,
loosen
nut
(E,
Fig.
13)
which
clamps
the
feed
rocker
arm
to
the
feed
rocker
and
move
the
feed
rocker
for-
ward
or
backward
as
needed
and
re-
tighten
nut.
Fig.
12
Fig.
13
10
From the library of: Superior Sewing Machine & Supply LLC