Willcox & Gibbs 500/I Instruction Manual

INSTRUCTION
&
PARTS
CATALOG
WILLCOX
&
GIBBS
500/I &
500/Il
OVERLOCKS
WILLCOX
8’
gIBrn!’!!°
1040 AVENUE OF THE
AMERICAS
NEW
YORK.
NEW
YORK
10018
(212)
565-7900
r
-
:
—1
From the library of: Superior Sewing Machine & Supply LLC

TABLE
OF
CONTENTS
OPERATORS
INSTRUCTION
MECHANICS’ INSTRUCTION
PAG
E
Introduction
How
to
clean
your
machine
Driving
motor,
pulley
and
belting
Lubrication
Threading
your
machine
Regulating
thread
tension
Pressure
of
presser
foot
Needles
Regulating
seam
width
Replacing
the
upper
and
lower
knives
Regulating
stitch
length
Setting
the
welt
guide
Setting
the
edge
guide
4
4
4-5
4-5
6-7
6-7
8-9
8-9
8-9
8-9
10-11
10-1
1
10-11
Alignment
of
needle
plate
to
feed
Feed
adjustment
Adjusting needle
arm
height
Left
looper
adjustment
Adjusting
needle
guards
Right
looper
adjustment
Presser
arm
alignment
Presser
foot
adjustment
12-13
12-13
12-13
14-15
14-15
16-17
18-19
Presser
foot
lift
adjustment
Timing
gauges
Millimeter-inch
fraction
& decimal
conversion
chart
18-19
18-19
20
21
1
—2—
From the library of: Superior Sewing Machine & Supply LLC

PARTS
LIST
SECTION
PAGE
Mdclii
iC
bed
[raine
22-23
Ma
n Irarne and
miscellaneous
covers 24-25
Crankshalt
niechanisrn
26-27
Needle drive
mechanism
28-29
Right
looper
drive
mechanism
for
500/I
30-31
Right
looper drive
mechanism
for
500/Il
32-33
Left
looper
drive
mechanism 34-35
Main
and
diflerential
feed
mechanism
36-37
Upper and
lower knife
mechanism
38-39
Presser
foot
and
lifting
mechanism
40-41
(1)
Pump
lubricating
mechanism
42-43
(2)
Pump
lubricating mechanism 44-45
Plain
feed
mechanism
503/I
&
11-4,
503/I
&
11-8
46-47
Attachments
48-49
Chain
cutter
models
KSR-570,
KSR-571
and
KSR-572
50-51
Suction
device
model VSA-200
for chain
cutter
52-53
Mounting
accessories
54-55
Accessories
56-57
Thread
stand
58-59
ORGANIZATION CHARTS
504/1-5.
504/1-45. 504/1-43
60-61
504/1-47. 514/1-41. 514/1-42
503/1-4. 503/1-8.
503/1-25 62-63
504/I-i.
504/I-9-Z7.
504/1-10
504/11-5.
504/11-45. 504/11-43
64-65
504/11-47. 514/11-41. 514/11-42
503/I
1-4.
503/11-8.
503/11-25
66-67
Additional organization
chart
68
NUMERICAL
INDEX
PARTS
Numerical
index of new
product
code numbers
with
old
numbers
69-73
Numerical
index of
old
numbers
with
new
product
code
numbers
74-78
—3—
From the library of: Superior Sewing Machine & Supply LLC

OPERATORS’
INSTRUCTION
INTRODUCTION
You
are
aliou
t
to
opera
Ic
an overlock
ii
ach
no
designed
by
the
people
who
first
introd
iced
the
overlock.
In
this macli
me
you
will
[mt
Lu
I
the
features
to
assist
you,
as
the
operator,
to
enjoy
the
easier
handling
and
[aster
sewing
that
wi
I
help
you
increase
your
production.
It
is
easy
to
thread,
feeds
smoothly,
has
automatic
lubrication,
and
ru
is
quietly.
The
Willcox
&
Gibbs
class
500/I
& II
machines
are
the
machines known
as
‘‘TH
E
OPERATOR’S
FAVORITES”.
HOW
TO
CLEAN
YOUR
MACHINE
Clean
the
machine
is
a
simple
but
important
operation.
It
is
riot
necessary
to
remove any
parts.
Merely
release
the
foot
and swing
it
out
to
the left.
Swing
out the
covers
and
remove
all
the
collected
lint
from
around
the
loopers,
feed
slots,
and
under
the
needle plate.
Blow
out
any
loose
lint
or
use a
lint
brush.
Replace covers
and
return
foot
to the
sewing
position.
DRIVING
MOTOR,
PULLEY
AND
BELTING
Table
1
It
must
be
used
with
the
motor
and
belting
of
the
following
specifications
for
individual
use.
1.
Driving
motor
of
3
phases,
2
poles
arid
400
watts
(1/2HP)
is
recommended
to
this
machine.
2.
Motor
speed
is
approximately
2,900
r.p.m. for
50
Hz
or
3,500
r.p.m.
for
60
Hz.
3. Belting
used
should
be
type
M
of V-belt.
4.
The
relation between machine
speed
and
motor
pulley
diameter
is
determined
by Table
1.
LUBRICATION
Table
2
Fig.
1,
2,3
CAUTION:
Oil
was
drained
from
the
machine
when
shipped.
Refill
with
oil
before operating.
The
500/1
& II
features
fully
automatic
lubrication
with
a
concealed forced
air
cooling system.
Oil
is
pressurized
by
a
pump
to
the
internal surfaces
of
the
connections.
A
new
ii
ach
inc
sl
iou
Id
I
rn
run
at
least
[our weeks
Lit
Li
speed
not
to
exceed
5,000
s.p.m.
At the end
of
bLur
weeks,
original
oil
should
he
drained
oLit
arid
replaced.
Operational
speed
alter
four
weeks
run-
in
may
be
7,000
s.p.m.
Operational
speed
is
depending
upon
operation
being
performed
and
ability
of
operator.
Life
time of
machine
depends
on
quality
oil
used.
For
lubricant
for
500/I
&
II,
use oil
as
specified
in
Table
2.
Use
recommended
type
oil
only.
Changing
oil
1. Remove
the
machine
from
its
stand
and
set
it
on
a
table.
2.
Remove
drain
plug
0
and
drain
oil
from
the
machine.
3. Replace
drain
plug
0
and
return
the
machine
to
its
stand.
4. Remove
filler
plug
0.
5.
Pour
fresh
oil
into
reservoir
(700cc
Capacity)
using
funnel
supplied
with accessories,
until
oil
reaches
upper
line
of
gauge
9.
6.
Replace
filler
plug
0.
7.
Run
machine
and
check
oil
circulation
at
oil
splash
sight
window
0.
8.
Oil level
should
be
kept
between two
lines
on
gauge
0.
9. Change
oil
entirely
every
three
months.
OIL
SCREEN
FILTER
Filter
0
should
be
always
kept
clean.
Since
lubri
cation
oil
is
filtered
by
this
and
delivered
to
all
frictional
surfaces,
clogging
of
this
filter
may
cause
lack
of
lubrication
and
accidental
seizure
of
parts.
Check and
clean
filter
0 every
three months,
or
if
necessary,
replace
with
a
new filter
when:
Oil
jet
in
window
0
is
restricted
or
weak,
or oil
contained
foam
or
debris.
Changing
filter
1.
Drain
oil
from
the
machine.
2.
Remove
bolts
0
and
oil
pan
0.
3.
Remove
screws
0
and
filter
0.
4.
Clean
filter
0
with
petrol
and
blow
it
with
low
pressure
air.
5.
Replace
filter
0
and
tighten
screws
0.
6.
Replace
oil
pan
0
and tighten
bolts
0.
7.
Fill
reservoir with
oil
on
a
level
of
upper
line of
gauge
9.
p.
—4—
From the library of: Superior Sewing Machine & Supply LLC

50 Hi
Fig.
L
MACHINE
SPEED
(S.P.M.)
MACHINE
SPEED
(S.
P.M.)
MOTOR
PULLEY DIAMETER
PULLEY
SIZE
INCH
ES
in
U.S.A.
3-3/4 636
4-1/8
641
4-3/8
643
4-1/2
644
4-3/4
646
4-7/8
647
5-1/8
651
5-1/2
654
5-3/4 666
4,600
5,000
5,300
5,500
5,800
6,000
6,300
6,700
7,000
MM
95
105
110
115
120
125
I 130
140
145
60
Hz
MOTOR
PULLEY DIAMETER
MM
INCHES
4,600
80
3-1/8
5,000
85
3-3/8
5,300
90
3-5/8
5,500
95
3-3/4
5,800
100
4
6,000
105
4-1/8
6,300
110
4-3/8
6,700
115
4-1/2
7,000
120
4-3/4
PULLEY
SIZE
in U.S.A.
631
633
635
636
640
641
643
644
646
Fig.2
0
Table
1
Note 1:
Machine
pulley
diameter
is
60mm
(2.36”).
Note
2:
Motor pulley
diameter
should
be
measured
in
its
outer diameter.
Brand
“A”
Brand “B”
(<inematic
100°F
19.01
14.57
Viscosity
—
(centistokes)
210°F
4.04 3.57
Viscosity
I
VI
(A)
130.0
-
147.5
Index
VI
(B)
[
123.5
142.5
Pour
Point
(°
F)
—59.0
—63.5
Load
Carrying
more
than 12
more
than 12
Capacity
(kg/cm 2 )
(170
psi.)
(170
psi.)
Fig.3
—0
/0
Table
2
—5—
From the library of: Superior Sewing Machine & Supply LLC

THREADING
YOUR
MACHINE
Table
3,
4
Fig.
4,
5, 6, 7, 8,
9, 10
REGULATING
THREAD
TENSION
When
a
machine
is
received,
note
that it
has
been
threaded
correctly.
The
simplest
way to
rethreacl
it is
to
tie
the flCW
threads
to
those already
in
the
machine and
pull
the new
threads
through,
making sure
that the
knots
will
go
through
the
looper
eyes
and
needles.
In
case
the machine requires
a
complete
rethreading,
refer
to
Threading
Diagrams
Fig.
4
to
10,
Table 3
and
4.
500/I
Fig.
4,
5, 6, 7,
8
Thread
Right Left
Right
Left
Federal
needle needle
looper looper
stitch
503
Ti
Non Non
T4
504
Ti
Non
T5
T6
512
T3
T2
T7
T8
514
T3 T2
T5
T6
Table 3
The
amount
of tension
required
varies with
type
of
material,
size and
type
of
thread,
etc.
Adjust
individual
thread
tensions
as follows.
To
increase
tension
— Turn
nut
clockwise.
To
decrease tension—
Turn nut
anti-clockwise.
Tension
on thread
should
be
just enough
to
secure
proper
stitch formation.
Normally,
you
should
have more
tension
on the
needle
threads
and
less
tension
on the
looper
threads.
500/Il
Fig.
4,5,9,
10
Thread
Right
Left
Right
I Left
Federal
needle needle
looper
looper
stitch
503
Ti
Non
Non T9
504
Ti
Non
TiO
Tli
V
512
T3 T2
Ti0
Tii
.
—.
514
T3
T2
TiC
Tii
Table
4
Fig.4 Fig.5
T4
Fig.6
/
//V
C
—
6
—
From the library of: Superior Sewing Machine & Supply LLC

Fig.7
T5\
\T,
%-,-,
D
Fig.8
Fig.9
t
Fig.
10
JJ
—7—
From the library of: Superior Sewing Machine & Supply LLC

PRESSURE
OF
PRESSER
FOOT
Fig. 11
Pressure
of
presser
loot
is
requlated
by
means
of
tilunhl)
screw
0.
Pressure
on
presser
foot
should
be
just
enough
to
lend
material
and
obtain
proper
stitch
formation.
Too
much
pressure
may
Spoil
material
and give
it
more
stretch
than
it
needs.
Too
little
pressure
may
cause uneven
feedings or
stitches.
NEEDLES
Fig.
11,
12
Needles
for
500/I
&
II
series
are
specified
in
organization
charts
as
shown
in
pages
60
to
68.
Generally
the size
of
needle
should
be
determined
by
the size
of
thread
or
weight
of
material
to
be
sewn.
Changing
needles
1.
Turn hahdwheel
until needle
drive
arm
0
is
at
its
highest
position.
2. Lift
up lever
0
and
swing
presser
arm
0
to the
left.
3.
Loosen
nut
0
using
socket
wrench
furnished
with
the
machine
and remove
old needle.
4.
Insert
new needle
in
the groove
0
of
clamp
until needle
rests
against
pin
0.
5.
Tighten
nut
0
securely.
6.
Return
arm
0
to
the
sewing
position.
7.
Make
sure needle
descends
in
the
center
of
the
needle
hole
in
needle
plate.
8.
On
two needle machine,
be
sure
to
keep
shim
0
at
the
right
position
or
between
two
needles.
REGULATING
SEAM
WIDTH
Fig.
11,
13
1.
Lift
up
lever
0
and
swing arm
0
to the
left.
2.
Turn
handwheel until
upper
knife
is
at
its
lowest
position.
3. Loosen
screw
0.
Pull
thumb nut
Ij
to the
left
as
far
as
it
will
go
and
lightly
tighten
screw
0.
4.
Loosen
screw
D
and move
holder
®
to the
right
or
left
until
the desired
width
is
obtained,
then tighten
screw
di.
5.
Loosen
screw
0,
then
holder
®
will
return
to
position
by
spring
action.
6.
Tighten
screw
0.
7.
Return
arm
0
to the
sewing
position.
CAUTION:
When
seam
width
is
changed
to
extremely
wide
or
narrow,
to
replace
needle
plate
for larger or
narrower
seam
width
is
recommended.
See organization
charts
as shown
in
pages
60
to
68.
REPLACING
THE
UPPER
AND
LOWER
KNIVES
Fig. 11, 13, 14,
15
UPPER
KNIFE
1.
Lift
up lever
0
and
swing
arm
0
to
the
left.
2.
Loosen
screw
0.
Pull
nut
to
the
left
as
far
as
it
will
go
and
lightly
tighten
screw
0.
3.
Remove
screw
with
socket
wrench or
screwdriver
furnished
with
the
machine.
4.
Withdraw
knife
®
downward.
5.
Replace
with
new
knife
but
do
not tighten
screw
completely.
6.
Turn
handwheel until
upper
knife
is
at
its
lowest
position.
Set
upper
knife
so
that
its
cutting
edge
overlaps
lower
knife
by
0.5-1.0mm
(.020-.039”)
as
shown
in
Fig.
14.
7.
Retighten
screw
securely.
8.
Loosen
screw
0,
then
holder
®
will return
to
position
by
spring
action.
9.
Tighten
screw
0.
10.
Return
arm
0
to the
sewing
position.
LOWER
KNIFE
1.
Lift
up
lever
0
and swing arm
0
to
the
left.
2.
Loosen
screw
0
and
pull
nut
Iii
to
the left
as
far
as
it
will
go
and
lightly
tighten
screw
0.
3.
Loosen
nut
Ij
and
withdraw
knife
downward.
4.
Insert
new
knife
into
the groove of
clamp
stud,
setting
the
blade
so
that
the cutting
edge
is
level
with
the
top of
needle
plate
as
shown
in
Fig.
14.
5.
Tighten
nut
ji’
securely.
6.
Loosen
screw
0,
then
holder
®
will
return
to
position
by
spring
action.
7.
Tighten
screw
0.
8.
Return
arm
0
to the
sewing
position.
Knives
must
be
kept sharp.
Lower
knife
may
be
sharpened
by use
of
a
grinder
while
making
sure
that the
correct
angle
is
maintained
as
shown
in
Fig.
15.
Upper
knife
may
be
sent
to our
distributors
or
return
to
us
for
resharpening
since
it
is
made
from
a
special
tungsten
carbide
alloy
material,
and
must
be
sharpened
by
a
diamond
grinder.
From the library of: Superior Sewing Machine & Supply LLC

LLL
0
0
FigH4
Needle
plak
top
surfa(n
Upper
knife
0.5-
1.0mm
.020 .039”
0
/
0
Lower
knife
0
/
00
Fig.12
/
/
13
Fig.
15
From the library of: Superior Sewing Machine & Supply LLC

REGULATING
STITCH
LENGTH
Fig.
16
SETTING
THE
WELT
GUIDE
Fig.
17
SUtch
length
is
determined
by
the
combination
of
main and
dillerential
feed
eccentrics
to
be
used.
Outer eccentric 0
actuates
main
feed.
Tiller
eccentric
0
actuates
differential
feed.
The
number
stamped
on feed
eccentric
indicates
the
number
of
stitches
per
Inch.
However,
the stitches
made
may
vary
more
or
less
depending
upon the
material.
Welt
guide,
equipped
with models
503/1-25
and
503/11-25,
is
designed
for
blindstitch
welting
or
hemming.
1.
Set
base
0
on
the
machine
with screw
0.
2.
Loosen
screw
0.
3.
Move
guide
by
turning
screw
until
guide
€i
is
correctly
positioned.
4.
Tighten
screw
0
securely.
Selecting
eccentric
When
the stamped
number
of
differential
feed
eccentric
(e.g. =8)
is
smaller
than
that
of
main
feed
eccentric
(e.g. 12),
material
will
tend
to
shrink in
stitching.
When
the stamped
number
of
differential
feed
eccentric
(e.g.
#16)
is larger
than
that
of
main
feed
eccentric
(e.g.
#12),
material
will
tend
to
stretch
in
stitching.
Changing
eccentric
1.
Swing
presser
arm,
cloth plate
and
feed
mechanism
cover
to
the
left.
2.
Remove
nut
0
and
washer
0
from
crankshaft
0.
3.
Screw
extractor,
furnished
with
the
machine,
into
screw
hole
0
of
main
feed
eccentric
O
and
take
it
out.
4.
Screw
extractor
into
screw hole of
differential
feed
eccentric
0
and
take
it out.
5.
Be
sure
to eccentrics
and
mating
parts
are
clean.
Clean
eccentrics
in
oil
to
remove
all
dirt
and
dust deposits
before
placing
in
the
machine.
6.
Face
the
extruded portion
outward
(leftward)
and
insert
differential
feed
eccentric 0
on
the
crankshaft
0
mating
the
eccentric
groove
with
the
crankshaft
key.
Use
extractor.
7.
Face
the
extruded portion
inward
(rightward)
and
insert
main
feed
eccentric
0
in
the
crankshaft
0
mating
the
groove with
the
key.
Use
extractor.
8.
Replace
washer
0
and
nut
0.
9.
Tighten
nut
0
securely.
10.
Replace covers
and
return
arm
to
the
sewing
position.
Feed
eccentrics
supplied
in
the
machine
and
in
the
accessories
are
listed
in
the
organization
charts.
Additional
eccentrics
may
be
ordered
separately.
SETTING
THE EDGE
GUIDE
Fig.
18
Edge
guide,
equipped
with models
503/1-4, 503/1-8,
503/11-4
and 503/11-8,
is
designed
for
regulating
the
width
of material
to
be
trimmed
or
for
edge
guide
when
the
machine
is
operated
without
trimmer.
1.
Set
holder
®
on
the
machine
with
screws
2.
Loosen
screw
3.
Move guide
®
to
the
right
or
left
until proper
position
is
obtained.
4.
Tighten
screw
securely.
—
10
—
From the library of: Superior Sewing Machine & Supply LLC

—
IT
—
8
0
L!d
0
d
From the library of: Superior Sewing Machine & Supply LLC

MECHANICS’
INSTRUCTION
ALIGNMENT OF
NEEDLE
—
PLATE
TO
FEED
Fig.19,20,21
Generally
feeds
sliou
Id
be
n
position
as
shown
in
Fig. 19.
Each
raw of
main and
differential
feeds
rests
in
the
CCfl
[Cr
of
each
slot
of
needle
plate.
In
case
of
models
503/1-25
and 503/11-25,
differ-
en
[ial
feed
evenly
and
slightly
touches
needle
plate
at
its
right
side
0.
II
this
setting
is
incorrect,
reset
as
follows.
1.
Release
pressure
on
foot
and
swing
out foot
to
the left.
2.
Loosen
screw
and
move
upper
knife
to
the
right.
3.
Loosen
screw
@
and
move
lower
knife
to
the
right.
4.
Loosen screws
0
and
0.
5.
Check
the
groove
of
needle
plate
is
on
needle
plate
key
and
move
plate to
touch
evenly
at
point
0.
6.
Tighten
screws
0
and
0.
7.
Replace
both
knives
into
position.
8.
Make
sure
needle
descends
in
the
center
of
the
needle
hole
in
needle
plate.
FEED ADJUSTMENT
Fig.
22, 23,
24
Standard
height
of
main
feed
is
0.8-1.2mm
(1/32-
3/64”)
above
the
surface
of
needle
plate
at
its
rearend
tooth
when feeds
are
at
their
highest
position
as
shown
in
Fig.
22.
A
straight
edge
can
be
placed
across
the
top
of
the
main and
differential
feeds.
Standard
height
of
auxiliary
feed
is
0.5mm
(.020”)
above
needle
plate.
Replacing feeds
1.
Turn
handwheel
until
feeds
are
at
their
highest
position.
2.
Release
pressure
on
foot
and
swing
out foot
to
the
left.
3.
Swing
out
cloth
plate
to the
left.
4.
Loosen screw
0
and
remove
tube
0.
5.
Remove
screws
0
and
feeds
0.
6.
Replace with
new
feeds
and
set
feeds
by
raising
or
lowering feeds
until
proper
height
is
obtained,
then
tighten
screws
0.
7.
Replace
tube
0
and
tighten
screw
0.
8.
Return
cloth
plate
and
foot
to
the
sewing
position.
Feed
dogs
have
generally
been
preset
at
the
factory
with
a
front
to
back
tilt
when
feeds
are
at
their
highest
position
as
shown
in
Fig.
22.
Tilting
feeds
1.
Turn
handwheel until
feeds
are at
their
highest
position.
2.
Release
pressure
on
foot
and
swing
out
foot
to
the
left.
3.
Swing
out
cloth
plate
to
[lie
left.
4.
Loosen
screw
Ij
and
turn
screw
D
with
a
screwdriver
until
proper
tilt
is
obtained.
5.
Tighten
screw
6.
Return
cloth
plate
and
foot
to
the
sewing
position.
Woven
material
—
Set
feeds
level.
Knit
material
—
Tilt
feeds higher
in
the
front
than
the
rear.
ADJUSTING
NEEDLE
ARM
HEIGHT
Table
5
Fig.
21, 25, 26,
27
Turn
handwheel until
needle
is
at
its
highest
position.
Use
timing
gauge,
check
the clearance
between
the
point
of
needle
and
the
top
of
needle
plate
as
specified
in Table
5.
1.
Release
pressure
on
foot
and
swing
out foot
to
the
left.
2.
Push
up
cover
3.
Slightly
loosen screw
4.
Move
arm
to
right
or
left until needle
descends
in
the
center
of
the
needle
hole
in
needle
plate.
5.
Reset
arm
to
correct
clearance
as
listed
below
at
its
highest
position.
6.
Tighten
screw
®
securely.
7.
Return
cover
®
and
foot
to the
sewing
position.
At
this time,
with
arm
down, check
to
see
that
there
is
clearance between
the
front
edge
of the
needle
hole
in
needle
plate
and
needle
as
shown
in
Fig.
27.
If
clearance
is
insufficient,
loosen screws
0
and
move
needle
plate
back
and
forth
until
correct
clearance
is
obtained.
Table 5
CLEARANCE
MODEL
-
MM
INCH
-
500/I
9.8
--
.386
-
-
500/Il
10.3
—
12
—
From the library of: Superior Sewing Machine & Supply LLC

Fig.24
/
H
0
II:>
0
_Fig.25
L
‘/V77ZZ7Z7?ZZ7772ZX7J
/
Fig.26
®
Fg.22
N
0.8
-1
.2mm
1/32-3/64”
L
Fg.23
0
—
From the library of: Superior Sewing Machine & Supply LLC

LEFT
LOOPER ADJUSTMENT
Table 6
Fig. 28, 29,
30, 31
ADJUSTING
NEEDLE GUARDS
Fig.
32
1
. R elease
pressure
on [001
and swing out
loot to
the
left.
2. Swing
out cloth plate to the
left and open
front
cover.
3.
Remove
needle plate.
4. Remove
needle guards as
instructed on
this
page.
5.
Remove
feeds as instructed
on page 12.
6.
Turn handwheel
until looper
lever
0
is in
the
extremely
left
position.
7.
Loosen screw
0
and
remove
looper..
8.
Insert new
looper
into
lever
0
and
push
down
until base of
looper shank reaches
shaft
o
and
tighten
screw
9.
Loosen screw
0
with
wrench
and
adjust
point
of
looper
from
centerline of
needle to correct
clearance as
listed below and
lightly
tighten
screw
0.
On the two
needle machine,
set
point
of
looper
from
centerline of left
needle to
correct
clearance
as
shown
in Fig. 29.
10.
Turn handwheel
until looper
point is
in
the
centerline of
needle.
11.
Move
lever
0
back and
forth along
its
shaft
0
so that the looper
point just
touches
needle,
then tighten
screw
0.
12.
The point of looper should
be in
the scarf
of
needle
as
shown in Fig.
30.
13.
Recheck
clearance and
tighten
screw
0
secu
rely.
Replace
feeds as instructed
on page
12.
Replace needle
guards as
instructed on
this page.
Replace
needle plate.
Return
cloth plate, front
cover and
foot to
the
sewing
position.
Note: Left looper
has a
2.3mm
(3/32”)
offset
when
viewed from
above looper
lever
in
the
machine.
Looper
is
self
setting
as
shown in
Fig. 31.
Machines are fitted
with front and rear
needle
guards. Set rear
guard
0
first.
1. Release
pressure
on foot
and
swing out
foot
to
the left.
2.
Swing
out cloth
plate to
the left.
3.
Remove
needle plate.
4. Remove feeds
as
instructed on
page
12.
5.
Loosen screw
0
and remove guard
0.
REAR
NEEDLE
GUARD
6.
Loosen screw
0
and remove rear
guard
0.
7.
Replace
with
new guard
0
and lightly
tighten screw
0.
8.
Turn handwheel until
the point
of left
looper
is
opposite to
the centerline
of needle.
9.
Adjust guard
0
back and
forth until
it just
touches
needle without deflecting
needle point.
10. Tighten screw
0
securely.
FRONT
NEEDLE GUARD
11.
Replace
with
new guard
0.
12.
Adjust
guard until there
is a
space of
0.1-
0.2mm
(.004-.008”)
between
needle and
guard
0.
13.
Tighten screw
0
securely.
14.
Recheck
setting after tightening
screws
0
and
0.
15.
Replace feeds
as
instructed
on page
12.
16.
Replace
needle plate.
17. Return
cloth plate
and
foot
to
the
sewing
position.
CAUTION:
Needle
guards
must
be
reset
when
needle size is
changed.
FEDERAL
i
[
CLEARANCE
MODEL GAUGE
STITCH
MM
I
INCH
503
503/1,11
5.3
.209
504 504/I, II
5.3 .209
2.0
5.3
.209
512
514/I
II -
3.0
4.3
.169
514
514/1,11
2.0
5.3
.209
Table
6
14.
15.
16.
17.
— 14—
From the library of: Superior Sewing Machine & Supply LLC

Fig.
28
Fig.
30
\\
\\\
\\
\
\\
\S—
Fig.31
2.3mm
3/32”
Fig.
29
Fig.
32
\\
0.1
-
0.2mm
\\
.0O4-.OO8”
H
H
zz:
—
15—
From the library of: Superior Sewing Machine & Supply LLC

500/Il
RIGHT
LOOPER
ADJUSTMENT
Table
7,
8
Fig. 33— 43
500/I
1
. Release
pi
essii
re
on
toot
and
Svving
out
foot
to
[lii’
left.
2.
Svving
out
cloth
plate
to
the
left.
3.
Open
Iron
t
cover
aiid
remove
looper thread
I
i
[C
4.
Remove
needle
plate.
5.
Remove
feeds
as
inst
mc
toil
on
page
12.
6.
Turn
handwlioel
until
connection
0
is
at
its
lowest
position.
7.
Loosen
screw
and
adjust
the
clearance
from
[lie
hack
edge
of
looper
to
the
face of
looper
lever
0
to
3mm
(1/8’’).
8.
Tigh
ten
screw
0
ugh
tly.
9.
Turn handwheel until
looper
is
at
its
extremely
left
position.
10.
Loosen
screws
0
and
0.
11.
Slightly
loosen screw
0
and
adjust
looper
eye
or
spreader
(bottom
of
V
groove)
from
cen
terline
of
needle
to
correct
clearance
as
listed
below
by
moving
connection
0
downward
or
upward.
12.
Make
sure
it
is
correct,
then
tighten
screw
0
Ii
g
lit
I
y.
13.
Turn handwheel
slowly and
observe
that
when
both
loopers
pass
they
should
be
as
close
as
possible
without
touching
as
shown
in
Fig.
35
and
36.
14.
If
right
looper strikes
left looper,
move
con
nection
0
downward.
Move right
looper
to
the
left
until
correct
clearance
is
obtained
as
listed
below.
Turn
hanclwheel
and
observe
that
both
loopers
pass
as
shown
in
Fig. 35.
15.
If
clearance
is
too
much,
move
connection
0
upward.
Move
right
looper to
the
right
until
correct
clearance
is
obtained
as
listed below.
Turn
handwheel
and
observe
that
both
loopers
pass
as
shown
in
Fig. 35.
16.
Tighten
screw
0,
and
tighten
screws
0
and
o
alternately.
17.
Rotate
looper
in
its lever
0
and
adjust
right
looper
so
that
both
loopers
pass
as
shown
in
Fig.
36.
18.
Retighten
screw
0
securely.
19.
Looper should
not
strike
needle
when
passing
as
shown
in
Fig.
37.
On
the
two
needle
machine,
adjust
looper
so
that
upper
portion
of
the
back
of
looper just
touches
the
right needle
in
its
movement
to the
right as
shown
in
Fig.
38.
20.
Replace
feeds
as
instructed
on
page
12.
21.
Replace
needle
plate.
22.
Replace
looper
thread
plate
and close
front
cover.
23.
Return
cloth
plate
and
foot
to
the
sewing
position.
rERf
-
-
JCLEAR
AL
MODEL
GAUGE
FIG.
STITCH
MM TINCH
503
j5031l,
II
3.0
.118
31
L504
J50411,
II -
3.0
.i18
40
:
Table
7
1.
Release
pressure
on
loot and
swing
out
loot
to
the left.
2.
Swing
out
cloth
plate
to
the
left.
3.
Open
front
cover
and
remove
looper
thread
plate.
4.
Remove
needle
Plate.
5.
Remove
feeds as
instructed
on
page
12.
6.
Turn
handwheel until
looper
lever
0
is
at
its
lowest
position.
7.
Loosen
screw
0
and adjust
the
clearance
from
the
back
edge
of
looper
to
the
left
side
of
lever
o
to
4mni
(5/32”).
8.
Tigh ten
screw
0
lightly.
9.
Turn handwheel
until
looper
is
at
its
extremely
left position.
10.
Slightly
loosen screw
0.
11.
Adjust looper
eye or
spreader (bottom
of
V
groove)
from
centerline
of needle
to
correct
clearance
as
listed
below
by
moving
lever
0
downward
or
upward.
12.
Make
sure
it
is
correct,
then
tighten
screw
0
lightly.
13.
Turn handwheel
slowly
and
observe
that
when
both
loopers
pass
they
should
be
as
close
as
possible
without
touching
as
shown
in
Fig. 35
and 36.
14.
If
right
looper strikes
left looper,
move
lever
o
downward.
Move
right
looper
to
the
left
until
correct
clearance
is
obtained
as
listed
below.
Turn
handwheel
and
observe
that
both
loopers
pass
as
shown
in
Fig. 35.
15.
If
clearance
is
too
much,
move
lever
0
upward.
Move
right
looper
to
the
right
until correct
clearance
is
obtained
as
listed
below.
Turn
handwheel
and observe
that
both
loopers
pass
as
shown
in
Fig. 35.
16.
Tighten
screw
0
securely.
17.
Rotate
looper
in
its
holder
and
looper
so
that
both
loopers
pass
Fig. 36.
18.
Retighten
screw
0
securely.
19.
Looper should
not
strike
needle
when
passing
as
shown
in
Fig.
37.
On
the
two
needle machine,
adjust
looper
so
that
upper
portion
of the
back of
looper
just
touches
the
right
needle
in
its
movement to
the
right as
shown
in
Fig.
38.
20.
Replace
feeds
as
instructed
on page
12.
21.
Replace
needle plate.
22.
Replace
looper
thread
plate
and
close
front
cover.
23.
Return
cloth
plate
and
foot
to
the
sewing
position.
Note: Various right
loopers
are
provided
as
listed
on
page
18
for
use
with various
size
needles.
For
ease
of
identification
some
loopers
have
been
marked
with
a
looper
marking.
adjust
right
as
shown
in
—
--
From the library of: Superior Sewing Machine & Supply LLC

z
N.
‘1
()
r
-I,
(*)
-Il
()
From the library of: Superior Sewing Machine & Supply LLC

PRESSER
ARM
ALIGNMENT
Fig.
44, 45,
46
Pn;sei
arm niust
he
aligned
correctly
front
to
hack
and
right
to
left
to
insure
lilting
without
a
bind
and
alignment
of
the
needle
hole
in
loot
with
the
needle
hole
in
needle
plate.
Front
to
hack
alignment
1 .
With
foot
attached
to
arm, loosen
screws
0
and
0.
2.
Adjust
arm
back and
forth
while
lilting
to
insure
there
is
no
bind
in
bar
0.
3.
Tighten
screw
0.
4.
Position
regulator
0
against
connection
0.
5.
Tighten
screw
0.
Once set do
not
loosen
screw
Right
to
left
alignment
1.
Loosen
screws
0
and
2.
Shift
bracket
0
and
gLlide
0
to
the
right
or
left
until
the needle
hole
in
foot
and the
needle
hole
in
needle
plate
are
aligned.
3.
Check bar
0
is on
guide
0
properly
and
presser
arm
is
straight.
4.
Tighten
screws
0
and
0.
PRESSER
FOOT
ADJUSTMENT
Fig.
45,
46
Setting
foot
square
and
flat
1.
Remove
pressure
from
foot
by
turning
screw
IIi’
anti-clockwise.
2.
Turn handwheel
until
feeds
are
at
its
lowest
Position.
3.
Loosen screw
and
posi
Lion
loot
flat
on
needle
plate.
4.
Tiqli
ten
screw
and
reset
pressure
by
Lu
i
screw
clockwise.
5.
Pressure
should
he
just
enoLigh
to
feed
material
evenly
so
that proper
stitch
is
formed.
Adjusting
foot
tilt
1.
Loosen screw
2.
Raise
or
lower
regulator
to
give
the
desired
tilt
for
the
weight
of
material
being
sewn.
3.
Retighten
screw
PRESSER
FOOT
LIFT
ADJUSTMENT
Fig.45,46,47
1.
Loosen
nut
and
turn
screw
®
until
its
lowest
position.
2.
Loosen
nut
1J.
3.
Turn
screw
D
until
a
lift
is
obtained
of
6.0mm
(15/64”)
when
presser
foot
is
lifted. (4.5mm
for
500/I)
4.
Tighten
nut
U.
5.
While
lifting
presser
foot
of
6.0mm (4.5mm for
500/I),
turn
screw
®
until
the
clearance
between
screw
®
and
stopper
®
is
obtained
of
0.5mm
(.020”).
6.
Tighten
nut
7.
When
presser
foot
is
on
needle
plate,
loosen
nut
®
and
adjust
the
play
clearance
from
the
bottom
of screw
to
top
of
lever
J
to
2
— 3mm
(5/64 —1/8”)
by
turning
screw
8.
Tighten
nut
®
RIGHT LOOPERS
FOR
USE WITH
VARIOUS
SIZE NEEDLES
Table 8
MODEL THREADS
FEDERAL
LOOPER
STITCH MARKING
2
NEEDLE
SIZE
IDENTI
FICATION
SINGER
3
503
504
500/I
-1
500/Il
512
514
503
4
4
2
3
3
4
4
G
25-32
34-40
25-32
34-40
30-36
25-32
25-32
25-32
- 34-40
25-32
25-32
34-40
25-36
9-12
13-16
9-12
13-16
11-14
9-12
9-12
9-12
13-16
9-12
9-12
13-16
9-14
504
521
PART
NUMBER
METRIC
NEWNO.
QLDNO.
65-80
323-810-003
201234A
85-100 323-810-013
202475
65-80 323-810-001
201067A
85-100
323-810-004
201287A
759Qi
323-810-001
201067A
65-80
323-810-004
201287A
65-80
323-810-213
202842
65-80
323-810-211
202874
85-100
.323-810-224
202828
65-80
323-810-213
202842
65-80
323-810-214
202872
85-100
323-810-007
202989
65-90
323-810-211
202874
512
514
2
1
4
2
3
7
1
——
From the library of: Superior Sewing Machine & Supply LLC

-
-
N
8
1
0
-n
01
0
0
0
a
\
\
0
8
1
From the library of: Superior Sewing Machine & Supply LLC

500/I
& 500/11
TIMING
GAUGES
RESPECTIVE POSITIONS
REQUIRED
AT
MEASURING
A)
Needle,
at
upper
dead
point
B)
Right
looper,
at
left dead
point
(Needle
size
9)
C)
Left
looper,
at left dead
point
(Needle
size
9)
D)
Main
feed
dog,
at
upper
dead
point
BASIC
POSITIONS
ON
MEASURING
from
needle
plate
top
to
needle
point.
from
left
side of
needle
to
center
of
looper
eye.
from
left
side
of
needle
to
looper
point.
from
needle
plate
top
to
top
edge
of
feed
teeth.
—
20
—
500/I
323
882 800
151
C’
A
D
B
500/I
I
323-882202
183
C’
A
D
B
.
From the library of: Superior Sewing Machine & Supply LLC