Willcox & Gibbs 500/IV Instruction Manual

INSTRUCTION
&
PARTS
CATALOG
fr
WILLCOX
&
GIBBS
500/IV
(overlock
&
safety
stitch)
wi[aeox
6’
1040
#EVCNUE
OF THE AMI
RICAS
NEW
YORK
NEW YORK
T000
?12J
5E5 1900
1
--
From the library of: Diamond Needle Corp

TABLE
OF
CONTENTS
iii
1(51111
1)1
I
OPERATORS’
INSTRUCTION
I
ihricatioi
5
Caution
to
01
hi
ter
sc
reei
5
I low
to (1(110
VOUl
macbin
ii
Re 1 )
lac:
ing
the
needles
6
ihread
ng
your
macbin
6
Regulating
thread
tens
ioi
Ii
lb reading
d
agrams
7
Regulating
seam
w idtl
Adjusting
the
upper
and
lower knives
.9
Regulating
the
stitch
lengtl
9
Adjusting
the
differential
feed
regulating
love
1
0
Pressure
of
presser
foot
1 0
MECHANICS’
INSTRUCTION
Adjusting
needle
bar
height
11
Adjusting needle
guards
11
Left
looper
adjustment
12
Right looper
adjustment
12
Right
looper
lever
adjustment
13
Chainstitch
looper
adjustment
13
Chainstitch
looper
height
adjustment
1 4
Chainstitch
looper
avoiding
motion
adjustment
1
4
Feed
adjustment
14
Presser foot
arm
alignment
15
Presser
foot
lift
adjustment
15
Chainstitch
looper thread
control adjustment
15
Timing gauges
16
Miii
meter-
inch
fraction
&
decimal conversion
chart
1
7
-2—
From the library of: Diamond Needle Corp

PARTS
LIST
SECTION
Maclion
bed
frau
503-51
6
/IV-
20—2
1
(I
)
Main fuiiuuui-
awl
uuiiscellauueoiis
u-oes
515—SI
6
/IV-
22—23
(2)
Maui
frauuii
ijuul
u
uxcellineuis
covers
515—516
/IV---
24—25
(I)
M;iiui
fruuuue
mu
uuuiuellimuuiu;
coy
—503—1S14/IV—
26—27
(2)
Miii
[rain
and
misuelhnienus
covers
503—514
/IV”
28—29
Crnulshmii
nuu’clua,nsn
503-516
/IV”
30-3
1
(1)
Needle
drive
nuu’clmanmsin
503—516/IV” 32—33
(2)
Needle
drive
mechanism
503-516/I
V- 34-35
Right
looper
drive
mechaniso
503516
/IV•
36-37
leO
loopet
ulij\’e
unechunusn
503-516/1V”
38-39
(I)
(‘haiiixtutch
looper
thrive
mechanism
515-516/TV”
4.0-41
(2)
(.hiijuisi,itu-h
looper
drive
mechuniSn
51
5-51
6/TV”
4.2-43
(I)
Miii
and differential
feed
mechanism
503-516/TV”
-
44.45
(2) Main and
differential
feed
mechanism
503-5 16/IV”
46-47
Ilmor
uiiil
lower
knife
mechanism
503-516/TV--
4.8—49
Presser
foot
and
lit mechanisn
503-51
6
/IV
-
50-51
(I)
Pump
hulnicatung
mechanisn
503-516/TV-”
52-53
(2)
I jump
luhricating
mechanism
503.51
6/TV
54-55
I
)
Attachments
56-57
(2)
Attachments
58-59
(3)
Attachments
60-61
Accessories
62-6
3
Ihread
stand
64-6
5
ORGANIZATION
CHARTS
503/IV-44.
503/IV-48.
501./IV-1
7.
504/IV-19.
504/IV-25.
504/IV-43.
504/IV-47.
504/TV-S-TO.
504/IV-S-1
7.
514/TV-il.
514/IV-20.
511/IV-22.
514/IV-41.
514/IV-42.
514./IV-S-13.
5
14/IV-S-14.
514./IV-S-18.
514/IV-S-19.
Component
parts
—
presser
foot
515(516)/IV-26.
515(516)/TV-28.
515(516
)/R3
1.
515(516)/IV-33.
515
(5
16
)/I
V-3
9.
Numerical
index
of new
product
code
nnmhers
with
old numliers
6:3
-90
Numei-ucal
index
of
old
numbers
with
new
product
rode numbers
91
-98
Sewing
organizations
for
500/TV
line
99
W
&
C;
.500
class
model
specification
and
summary
sheet
100
504/IV-7
68
504/IV-21
69
504/[V-45”
70
504./[V-S-16
71
514/lV-12
72
514/IV-23
73
511/TV-S-li
514/TV-S-is
75
514/lV-S-20
76
complete
503-514/TV
77
515(516)/IV-27
78
515(516)/IV-29
79
515(516)/IV-32
80
515(516)/IV-38
81
515(516)/TV-SI
515(51
6)/[V-52
82
NUMERICAL
INDEX
OF PARTS
—3-
From the library of: Diamond Needle Corp

INTRODUCTION
The new Willcox
& Gibbs 500/IV is the latest
design in Overlock and
Safety
stitch
machines. You will benefit
from
its
ease of handling,
fast pickup in starting
and smooth, quiet running. it is automatically
lubricated and ruggedly
designed for trouble-free performance.
As the
operator,
you will appreciate these features
helping you to
gain more
production with less fatigue
as
you
operate. Wilicox
&
Gibbs will
continue to
lead the
way in developing new machines
that will benefit
the
Operator, achieve
more production
— with greater ease.
From the library of: Diamond Needle Corp

LUBRICATION
(Fig.
1, 2,
3)
OPERATORS’
INSTRUCTION
(‘,\
I
JIl(
)N
I(1
i1 s’’as
iliaiited
front
(tie
iii:iciiiiie
when
shipped.
Relill
with
oil
iwlore
oper:itiig.
liii
0l)/IV
ie;iliiies
inily
;iillonlaIIe
lubrication
with
a
concealed
forced
air
cooling.
system.
tin.’
ml
is
pressiri/.cd
by
a
piiiiip
to
(lie
niternal
snrt:iees
of
liie
coiniectiotis
through
(he
inner
(‘ranksliaft.
A
1kw
iii:ieiina’
should
he
run
at
least
Iwo
weeks
at
a
speed
1101
to
exceed
5,000
r.p.m.
At
(he
end
of
wu
weeks,
lift
original
oil
should
be
drained
out
and
replaced.
Opei:iliuiial
speed
it er
two
weeks
run--ui
may
he
0,00(1
r.p.m.
(l”ig.3).
Use
iecoiiiiueiided
type
oil
only.
Fig.
3
Note: Ilic
above
pulleY
siv.e
is
based
on
a
motor speed
of
appmX. 3,480
r.p.m.
(60Hz,
2.pole)
To
replace
the
oil.
Remove
the
machine from
its
stand
and
set it
on
a
table.
Remove Drain
Plug
(Fig.
I,
D)
which
is located
on
the
Oil
Pan
just
below
the
Handwheel.
Drain
oil
from
machine.
Replace
the
plug
and
return
the
machine
to
its
stand.
To
refill,
swing
out the
Cloth
Plate
(Fig.
2,
A)
to
the
left
and
remove
the
Filler
Plug (B).
Pour
fresh
oil
into the
reservoir
using
the
funnel supplied
with
the
accessories
until
the
oil
reaches
the
upper
line
of
the
Sight
Gauge
(Fig.
1,
C).
The
oil
level
should
be
kept between
the
two
lines
on
the
Sight
Gauge.
CAUTION
TO
OIL FILTER
SCREEN
The
Oil
Filter
Screen
(Fig.
4,
A)
should
always be
kept
clean.
Since
the
lubrication
oil
is
filtered
by
this
Screen
and
delivered
to
all
the
frictional
surfaces,
clogging
of
this
Screen may
cause
lack
of
lubrication
and
accidential
seizure
of
parts.
Check
and
clean
the
Oil
Filter
Screen
every
three
months,
or
if necessary,
replace
with
a
new
Screen
when:
the oil
jet
in
the
Oil
Splash
Sight
Window
is
restricted
or
weak,
or
the
oil
contains
foam
or
debris.
HOW
TO
CLEAN
YOUR MACHINE
Cleaning
the machine
is
a
simple
but
important
operation.
it
is
not
necessary
to
remove
any
part. 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.
MA(’lllNF
SPhhl)
4000
5 I
00
5275
5450
5050
5825
6000
PUL.LFY
l)IAMVI’ER
SIZh
in
IN(l
lhS
031
3
1/8”
632
3
1/4”
633
3
3/8”
034
3
1/2”
635
3
5/8”
630
3
3/4”
637
3
7/8”
Fig.
I
Fig.
2
-
—5--—
From the library of: Diamond Needle Corp

REPLACING
THE
NEEDLES
(Fig. 5,
6, 7, 8)
lt
II l;ue
llltdle, huh
hit’ lIafltlWllct’l
until 11w
Needle
thu
is iii its
ugliest position.
lilt up the
llund
Lt
I
eVII (lig.
5, F)
intl Swing
loot In
hut’ hell
(I).
503,
504/IV
(Fig.
6)
Looseiu
Needle
( ‘laiuip Nut
(A)
and wit
hdi aw
needle.
luist’rt
lily,’ uut’i.’dle
ihitu the
needle hole
is tar
as it will
go,
and posit oil
start oh
I
lie
ieedle to the
rear
ot I
lie
maeliiiui.
keliglulen
nut
(A).
514/IV
(Fig. 7)
515,
516/IV
(Fig.
8)
Loosen
Need Ic
(‘lunp
Screws
(13)
and
wit hdraw needle.
Insert
new
needle
into the
needle hole
as
tar as it will
go,
and
position scan
ol the
needle to
the
rear of
the
macluuiuc.
Relighten
screws
(13).
503, 504/IV
THREADING
YOUR
MACHINE
(Fig.
9, 10,
11, 12, 13,
14)
When
a
machine
is
received, note
that
it has
been
threaded
correctly.
The
simplest way
to rethread
it is to
tie
the new
threads to those
already
in
the
machine
and
pull
the
new
threads through,
making
sure that
the
knots
wilt
go
through
the
looper eyes
and
needles.
In case
the
machue requires
a
complete rethreading
refer to
tile
threading diagrams.
REGULATING
THREAD
TENSION
The
amount of
tension required
varies
with type of
material, thread, stitch
length,
etc.
Adjust individual
thread
tensions
as
follows.
To
increase tension
Turn nut clockwise.
To decrease
tension —
Turn nut counterclockwise.
I
I
r,
1
,
2>
a a
5
I 4/I V
A
Fig.
5
Fig.
6
515, 516/IV
o1.
Fig.
8
6-
From the library of: Diamond Needle Corp

I503/IV.
504/tV
.514/tV
Left needle
thread
Non
Non
‘F
I
Right needle
thread
T2
12
T2
Right
looper
thread
Non
T8
18
Left looper
thread
T7
T9
19
515/tV,
516/tv
l5/iV6V
Right
needle
thread
T3
13
Left
needle
thread
-__14_-
14
Right
looper
thread
J
Non
T8
Left
looper
thread
17
19
Chainstitch looper
thread
110
TI
0
Fig.
11:
Needle
threading
for
elastic
synthetic
THREADING
DIAGRAMS
‘13
r4
Lig.
C)
503/IV,
504/IV,
514/tV
T7
Fig.
12
For
the welting operation
which
requires
a
loose
needle
tension,
the Needle
Thread
Guide
(Fig.
9,
B) may
be
adjusted.
To
decrease tension
—
Loosen Needle
Thread
Guide
Screws (Fig.
9,
C),
move
Needle
Thread
Guide
down. Retigh
ten screws
(C).
TS T9
— —
—
—
Threading
for
stretchy
thread
like wooly
yarn
Fig.
13
thread.
J
Fig.
14
7
-
From the library of: Diamond Needle Corp

REGULATING
SEAM
WIDTH
515,
516/IV
(Fig.
15)_
1.
Turn
the
I
lindwlieel
until
the Upper
Knife
is
at
its lowest
point.
2.
lAnsen
I
he
Lower
Kink’ I lolder
Screw
(A).
Pull
the
Lower
Kni
ic
I
lolcier
(the
lower
Knife
(lamp
Stud
Nut.
B)
to
the
left
as
Far
is it
will
go mt 1
lightly
tighten
screw
(A).
3.
Loosen
the
Upper
Knife
(lamp
Screws
(C)
and
move
the
Upper
Knife
(
Limp
(I))
to
the
right
or
left
until
the
desired
width
is
obtained
4. Tighten
the
Upper Knife
(‘lamp
Screws
(C).
5.
Loosen t
lie
Lower
Knife
Holder Screw
(A),
then
the
Lower
K
iii
Fe II
ol
cler
will
ret
urn
to
position
by
spring
action.
6.
Retigliteri
screw
(A).
503,
504,
514/IV
(Fig. 16)
• Turn
tie
I
landwheel
until
the
Upper
Knife
is
at
its lowest
point.
2.
Loosen
the
Lower
Knife
Holder
Screw
(A).
Push
the
Lower
Knife
llolder (the
Lower
Knife
(lamp
Screw.
U)
to
the
left
as
_______
________________________________
far
as
it
will
go
and
lightly
tighten
screw (A).
3.
Loosen
the
U
pper
Knife
(lamp
Screws
(C)
and
move
the
Upper
Knife
(lamp
(D)
to
the
right
or left
until
the
desired
width
is
obtained.
4.
Tighten
the
Upper
Knife
(lamp
Screws
(C).
5.
Loosen
the
Lower Knife
Holder
Screw
(A),
then the
Lower
Knife
1—lolder
will
return
to
position
by
spring
action.
6.
Retigh
ten
screw (A).
ADJUSTING
THE
UPPER
AND
LOWER
KNIVES
UPPER
KNIFE
515,
516/tv
(Fig.
15,
17)
___________-.
1.
Loosen
the
Lower Knife
Holder Screw
(Fig.
15,
A).
Pull
the
Fig.
16
Lower
Knife
holder
(the
Lower Knife
C’lamp
Stud
Nut.
B)
to
the
left
as
far
as it
will
go
and
lightly tighten
screw
(A).
2.
Remove
the
Upper Knife
Nut
(F)
and
raise
the
knife
to remove.
Replace
with
a
new
knife
but
do not tighten
nut
(F)
completely.
3.
Turn
the Handwheel
until
the
Knife
Holder
(D)
is in
its
lowest
position.
Set
the
Upper
Knife
so
that
its
cutting
edge overlaps
the
Lower
Knife
by
1/32”
(.5-1.0mm)
(Fig.
17).
Retighten
nut
(F).
4. Loosen
the
Lower
Knife
Holder
Screw
(A),
then
the.
Lower
Knife
Holder
will
return
to
position by
spring
action.
5.
Retighten
screw (A).
Fig.
15
A
Fig.
17
From the library of: Diamond Needle Corp

ADJUSTING
THE
UPPER
AND LOWER
KNIVES
(cont’d)
503, 504,
514/IV
(Fiq.
16,
17)
1.
loosen
lie
I,ow(y
kiiik holder
Sciew
(A). l’usli
the
lower
Knife
holder
(the
Lower
Knife
(‘I;uup
Screw.
L)
lo the
letI
as
tar
ax
it
will
go
and
lightly
lighten
screw (A).
2.
Remove
the
tipper
Knite
Stiew
Nut
(1)
iinl
raise
the knife
to
reniove.
Replace
with
new
knife
hilt
(10
lot
tighten
nut
(I”)
eonipletely.
3
‘luiii
the
Ilanthwhieel
until
lie
Kuite
Holder (I))
is
in
its
lowest
position.
Set
the
Upper
Kuile
so
that
its
eiittuig
edge
overlaps
the
lower
Knile
by 1/32’’
(.5-1.0mm)
(Hg.
17).
Ret
ghiten
iiit
(
U).
4.
I
•ooseu
the
lower
Kuite
I
lolder
Screw
(A), (lien
(lie
Lower
Knite Holder
will
return
to
position
by
spring
action.
5.
Ret
ighi
len
screw
(A)
LOWER
KNIFE
515,
516/IV
(Fig. 15, 17)
•
Looseu
the
Lower
Knife I
lolder
Screw
(
Fig.
I 5,
A).
Pull
the Lower
Knife
Holder
(the Lower Knite
(‘lamp
Stud
Nut.
B)
to the
left
as
tar
as it
will
go
and
lightly
tighten
screw
(A).
2.
[,oosen
the
(‘hun
St
tid
Nut
(B) and
i
Cfliuve
[he
Lower
Knife.
3.
Insert
a
new
Lower
Knife
(U)
into
the
groove
of
the
Lower
Knife
Clamp
Strict
(1),
setting
the
blade
so
that
the
cutting
edge
is
level
with
the
top
of
the
Needle
Plate
(Fig.
I
7).
Tighten
nut
(B).
4.
Loosen the Lower
Kni
te
I lolcler
Screw
(A),
then
the
Lower
Knife
Flolcler
will
return
to
position
by
spnng
action.
5.
Ret
ighten
screw (A).
503, 504, 514/IV
(Fig.
16,
17)
1.
Loosen
the
Lower
Knitc
Holder
Screw
(Fig.
16,
A). Push
the
Lower
Knife
Holder
(the Lower Knife
(‘lamp
Screw.
F)
to
the
left
as
far
as it
will
go and
tighen
screw
(A)
lightly.
2.
Loosen
the
Lower Knife
Clamp
Screw
(E)
and
remove
the
Lower
Knife.
3.
Insert
a
new Lower
Knife
(U)
into
the
Lower
Knife
Clamp (H),
setting
the
blade
so
that the
cutting
edge
is
level
with
the
top
of
the
Needle
Plate
(Fig.
17).
Tighten
screw (E).
4.
Loosen the
Lower
Knif’e
Holder
Screw
(A), then the
Lower Knife
Holder
will
return
to
position
by
spring
action.
5.
Retighten
screw (A).
Note;
A
right angled
Upper
Knife
is
also
available
as
an aLixiliary
sales
item.
Knives
must
be
kept
sharp. The
Lower
Knife may
be
sharpened
by
use
of
a
grinder
while
making
sure
that
the correct
angle
is
maintained.
Lpper
Knife
may be
sent
to
our distributors
or
rCtLirfled
to
us
for
resharpening
since
it
requires
special
grinding.
REGULATING
THE STITCH
LENGTH
(Fig. 18, 19)
To
change
the
stitch
length,
swing
Cloth
Plate
to the
left.
Loosen
Feed
Eccentric
Push
Rod
Screw
(Fig.
18,
A)
and
press
in
the
Eccentric
Push Rod
(B).
While
pressing
in
on
the
rod, turn
the Hanclwheel
in
the
sewing
direction
until the
rod
drops
into
the
hole
in
the
eccentric.
Turn
the
Handwheel
toward
the
desired
stitch
length
as
shown
on
the Handwheel
mid
cover tor
a
longer
or
shorter
stitch
(Fig.
19).
Longer
Stitch
(less
stitches
per
inch)
—
Turn
Flandwheel
clockwise.
Shorter
Stitch (more stitches
per
inch)
—
Turn
Handwheel
counterclockwise.
When
desired
stitch length
is
obtained,
release
the
rod
(B)
and
tighten
screw (A)
—9—
From the library of: Diamond Needle Corp

I”ig.
I
S
ADJUSTING
THE
DIFFERENTIAL
FEED
REGULATING
LEVER
(Fig.
18,
20)
The
tollowmg
teed
ralios
are
preset at
(lie
tactory.
Seaming
machines
1/2:
I
stretch
to
2:
I
titling
Slurring
machines
I
:
I
seaming
to
3:
I
shirring
TO
ADJUST:
Seaining
Iviachines
(Iig IS)
Sb
i rn
ng
Machines
(Fig.
20)
Loosen
Thumb
Nut
(C).
I
.me
up
mark
on
Differential
Lever (D)
with
setting
shown
on
Indicator
PIn Ic
(S).
Retighten
nut
(C).
INI)i(’ATOR
PLATE
SETTING
=
I)1FFERENTZAL
: MAIN
FEED
RATIO
1.5
=
2
: I
filling
0.6
1:1
1/2
:
I
stretcb
intermittent
shirring
can
be
obtained
by
use
of
the
Knee
Control
provided
with
Shirring
Machines.
When
the
range
has
been
set
the
adjustable
stops
(E)
are
positioned
and
Thumb
Nut
(C)
is
left
loose.
INDICATOR
PLATE
SETTING
=
DIFFERENTIAL
:
MAIN
FEED
RATIO
3
=
3
:
1
shirring
2
=
2
:
1
.shirring
I
I
:
I
seaming
Please
note
all
settings
are
approximate
figures that
will
vary
with
fabric weights,
thread, stitch
length.
etc.
PRESSURE
OF
PRESSER FOOT
Pressure
of the
Presser
Foot
is
regulated
by
means
of
the
Presser
Regulating
Thumb
Screw (Fig.
21
,
C).
Pressure
on the
Presser
Foot
should
be
just enough
to
feed
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 feeding
or
stitches.
‘I
1.
5,
‘‘N
)
(5)5,5
(5)).,
504.
54)
Fig.
I
9
i’,,
/
.y
‘•
4
1 c
-i
Fig.
21
—
From the library of: Diamond Needle Corp

MECHANICS’
INSTRUCTION
ADJUS11NG NEEDLE
BAB HEIGHT
(Fig. 22,
23,
24)
ADJUSTING
NEEDLE
GUARDS
(Fig.
25, 26, 27,
28)
Machine
are
fitted
with
both front
and rear needle guards.
Set
Rear
Guard
first.
Rear
Needle
Guard
515,
516/IV
(Fig.
25,
27)
Turn
Hanclwheel
until Needle
Bar
is
at
its
lowest
position.
Loosen
two
screws
(U)
holding
Needle
Guard Bracket.
Move
bracket
until
the
top
of
the
Overlock
needle
eye
is
.020’’
(0.5mm)
below
the
line
(T)
of
the
Needle
Guard,
Rear.
Tighten
screws
(U). Loosen
screw
(R)
holding
Needle
Guard,
Rear.
When
point
of
the Left
Looper
comes
to the
centerline
of
the
needle,
adjust
the Needle
Guard
(S)
hack
and
forth
so
that
it
lightly
touches
the
needle.
Tighten
screw
(RI.
503,
504,
514/IV
(Fig.
26,
27)
Turn
Handwheel until
Needle
Bar
is
at
its
lowest
position.
Loosen
two
screws (N)
holding
Needle
Guard
Bracket.
When
point
of
the
Left
Looper
comes
to the
centerline
of
the
needle,
adjust
the Needle
Guard (S)
back and
forth
so
that
it
lightly
touches
the
needle.
Tighten
bracket
screws
(N).
Front
Needle
Guard
(Fig.
28)
Adjust
Needle
Guard
so
there
is
a
space
of
.004
—
.008”
(.1
—
.2mm) between
the
Needle and
Guard.
CAUTION:
Needle
Guard
must
be
reset when
needle
size
is
changed.
Wjlli
a
new
neille
iii
(ic
iii;iLl1ile.
urn
Ic
lI:iinlwlieel
iiilil
(lR
needle
is
ni
Is
liiglies(
posiliiiii.
LIc’
Fnnii’,
.iii;e,
check
(lie
cle:ii:iiicc hel
weci
(lie
pi)iiit
ol
(lie
iiecdle
id
I
lii
lop
ol
the
Nec-dIe
Male.
If
elc:ii;iiiee
is
nil
oriccI.
loosen
(lie
Neeille
Bar
(‘oniiectiiit’. Br:ickel
Screw
cud 1usd
(lie
Needle
Our
corieelly.
(‘luck
In
nalse
sure
((ic
needle
ix
iii
lie
cenler
nI
lii’
needle
hole
nid
lighten
(lie
hr:icleI
screw seen
rely
I-li
)IkA
I.
I)IMI’NSIoN
5
II’I(’ll
M0I)I’I,
INCh
503
503/IV
.1
ho
50-h
So-lily
-II
0
50)5
505/I
V
LI
I
(I
SI
25
14/IV
.4S
SI-I
5I4/IV
515
5l5/IV
.415
L__Slh
-
510/IV
.1
IS
EXCEPTIONS:
515
(Sl)/IV3S,
SlS(516)/IV-51,-52
MM
IIG.
N0I’h
04
22
11)1
22
0,4
22
II
.8
23
check
to
I
he
Ic
I)
need
ft
I
1.8
23
c-heck In
(Ic
IIt
needle
I
Of
24
check
to
the riejit
needle
lO.f
2l
check
to
the
dglI
needle
10.
I
nini
I
2.0)inrn
Vt
Fig.
23
I[
l:j
Uug.
22
r
:
H’
[ig.
24
T
E:
U
Fig.
25
S
-
I
,
‘:
N
-
Fig.
26
Fig.
27
From the library of: Diamond Needle Corp

LEFT
LOOPER
ADJUSTMENT
(Fiq.
29,
30)
(‘lcaiiiicc
tiiiii
l)oiiit
I
I
ulci
1
ccitciliiii’
ol l”ccIlc
FLDERAL
MODEl
DIMENSION
—
STITCH
INCH
MM
503
503/IV
.130
(
1/8)
3.3 -
504
504/IV
130(1/8)
3.3
505
504/IV
.130
(1/8)
3.3
512r 514/IVr
-*
514
514/IV
.157 (5/32)
4.0
515
515/IV
.130(1/8)
3.3
516
516/IV
.130(1/8)
3.3
*
aligned
with
left needle
eye
Turn
l-landwheel
until
the
Looper
is at its
extremely
left
position.
Loosen
clamp
screw
(Fig. 35,
K)
and
move
Looper
until
necessary
dimension
is
obtained
as
listed
above.
At the
same
time, make
sure
the
Looper points
cross
as
shown
in Fig.
33.
Clearance
between
the Needle
(N)
and
Right
Loopershouldbe
.004
—.008”
(0.1
- 0.2mm)
(Fig.
34).
MO!)!.
I
I)IMI:NSION
B
V
Iii!.
.20
I I I
)
I. k A I
SII1(
II
I N(
1 I MM
5(0
503/IV
.1
51
(5/3.2)
3.2)
501
‘St).I/I\.f
.1
5!
(
5/32)
.1.2)
505
S0’l/IV
.1
54
(5/32)
3.2)
SI.2
S l4/IV
.1 51 (5/32)
511 5
l!/IV
()
(I
I
/01)
43
•
515
St 5/IV
. 54
(5/32)
3.2)
510
Sl0/IV
I
.151(5/32)
33)
Iiisert
11w
looper
nib
lIiL
looper
lever, iii;ikiiig
sure
it reaches
the
bottom
of slot.
lighten
screw
(
B).
‘Fun
the I Lnidwhee
until
the looper
is in
I
lie
ext reiiuely
Ic
ft
P05
I
ion
Loosen
clamp
screw
(
Fig.
211,
Y
).
Sc!
poni
I
of Looper
Irom
ccii (crime
of
Needle
to
correct
dimension
shown above
and
lightly
tighten
screw (YF
[urn
I
landwhiccI
until
Looper
point us
on the
centerline
ol (lie
Needle.
Move
Looper
I .ever,
if
necessary,
along
its
shalt
so thai
the
Looper point
just
touches
the
needle
at the
scarf
(
Hg.
30).
ugh
ten
screw
(
Y
).
Recheck
clearance
dnnension
and tighten
screw
(Y)
securely.
RIGHT LOOPER
ADJUSTMENT
(Fig.
31, 32, 33,
34,
35)
Clearance
from
Looper
(eye)
or Spreader
(
bottom
of V groove)
to
centerline
of
Needle
(
Fig.
3
I , 32).
I”ig.
3(1
1
Fig.
31
1ig. 32
0.2
0.4mm
0.1—0.2mm
.008
--.016”
.004
- .006”
4’,.
01
—0.2mm
004
-.008”
Fig.
33
Fig. 34
If the Right
Looper
strikes
the Left
Looper
in
passing,
advance
or
retard
the
timing
by
adjusting
the
Right
Looper
Lever.
12
From the library of: Diamond Needle Corp

RIGHT
LOOPER
LEVER ADJUSTMENT
(Fig.
35)
Note:
lo
check
this
set
hne
the
Oil Pan
must
be remoVed.
1t
adjiistiiienl
is
necessary,
loosen
clamj)
screw
(
[_).
Adjust the
Looper
Lever
(J
)
up
or
down
until
(he correct
setting
is obtained.
Retigh
ten
clamp
screw
( F).
Adjust
the Looper
back
and
I
orth, right
md
left
in
the holder.
Retime
the
Looper
to
the
Needle
since
raisi
ig
or lowering
the ever
will
alter
the
distance
between
the
Looper
eye
and Needle
centerli
mie.
Securely
tighten
screw
(K)
and
(
L).
Replace
Oil Pan.
CAU’I’ION
:
Make
sure
when
tightening
screw
(
F)
that you
do
not
twist the
Looper
Lever
causing
a
bind
in the
machine.
Various
Right
Loopers
are
provided
as listed
below
for
use with various
size needles.
boy
ease ot
identilication
looper
have
been marked
with
a
looper
marking.
F
LOOPER
NJdDLE
SIZE
IDENTIFICATION
1OD
L
MARKING
SINGER
W&G
METRIC
)-l2
027-032
65-80
13-In
034-040
85-100
042-051
9-14
027-036
CHAINSTITCH
LOOPER
ADJUSTMENT
(Fig.
36, 37.
38)
Clearance
from
point
of Looper
to centerline
of Needle
EMOI)FL
INCH
MM
[
5
15-516/TV
.083
(5/16)
2.1
Insert
Chainstitch Looper
into Looper
Lever
(Fig.
36, 0)
until
it touches
the
Looper
Regulator
(P).
Tighten
screw
(Q).
Turn
Handwheel
until
the Looper
is at
its
extremely
left position
(Fig.
37).
Loosen
cia
iii
p
screw
(R)
and
move
Looper
Lever
until
(lie
necessary clearance
is
obtained.
Tighten
screw
(R).
Turn lI:indwtit’el
until
the
Right
Looper
is
at
its lowest
posit
(iii.
(‘lear:iiiee
between
(‘rank
Pin
md
Maclone
Bed
should
he:
Dl
Ml
NSK)N
l\4(
)l
)11
I
!N(’Il
503/TV
.157
(5/32)
515/TV
.157(5/32)
MM
1.0
5(El/IV
51.1/TV
S
I
n/TV
K
4.t)
.13%
(9/64)
.13%
(9/64)
.13%
(9/6*)
3.5
3.5
3.5
-
Fig.
35
3
2 tlmmead
503-5
1
5/TV
3
thread
504-51
6/IV
4
thread 514/IV
PAR’I’
NL:MBER
515-516/IV
503-514/Tv
204278
323-810.215
-
204704
204704
323-810-011
323.810-01
I
204705
5
17-21
042-051 100-140
323-810-012
-
-
204062
2
9-12
027-032
n5-S0
323-810-218
204702
4
13.16
034-040
85-100
323-810-009
204703
6
17-21
100-140
323-810-010
7
204062
323-8
10-2 18
204702
323-810-009
204703
3 23-S
10-01
0
204663
323-810-008
65-90
13
From the library of: Diamond Needle Corp

CHAINSTITCH
LOOPER
HEIGHT
ADJUSTMENT
(Fig.
38)
ltnii
IIHii(IWlieel
aiid
check
lie
eye
to
eye
relationship
ut
lie
needle
mitt
[oliei
Ihe
(‘ye
ol
the
iieedle
iiid
(lie
eye
ol I oopei should
croSs
when
the
lilei
is
eoniint’,
ni
to
lie
iieeclle
and
on
(lie
way
hack. If
the
eye
to
eye
reIitiL)nshnl)
is
not
obtained,
adjust
the
looper
Regulator
(
lig.
.4b,
P)
to
the
tell
iii
dhit.
Flux
adjustment
will
r;nse
or
lower
(lie
looper eye.
hut
I
oopci
uiuuisl
lie
set
So
lull
(hut’
poml
01
lie
looper does
uuo(
qtnte
k)Iieh hue
needle
is it
passes.
When the
above
settings ire
complete,
tighten
chnnp sciew
(RI
securely.
CHAINSTITCH
LOOPER AVOIDING
MOTION
ADJUSTMENT
(Fig.
39)
‘b
eluiinge
tie
looper
iuvoidmg
iiiot
Oil
due
to
(lie
diameter
or
the
needle.
When
larger or
smaller
needles
are
lit
ted
to (lie
niielnnc make 11w
tollowmg adjustment.
Swing ont
( loth Plate.
Remove Bedplale.
Loosen Looper Avoiding
Connection
Pin
Nut.
Turn
Looper
Avoidmg Regulating
Screw.
(
Fig.
39, C).
Less notioii
Turn
screw
clockwise.
This
will
raise
the
Looper Avoiding
Connection
Pin.
More
motion
‘l’urn
screw cmiii
tei
clockwise.
This
will
lower
the
Looper
Avoiding
Connection
Pin.
Check
that tile
(‘hainsli tell
Needle passes
just.
belnnd
the
Chainstitch
Looper
on
the
downstroke.
Retigli (cii
Looper Avoiding Connection
Pin
Not.
Replace Bedplate and
Cloth
Plate.
FEED
ADJUSTMENT
(Fig.
39,
40,
41)
Feed
Dogs
have
generally
been
preset
at
the
factory
with
a
front
to
back
tilt
when the
machine was
sewn
off.
Before
adjusting
feeds,
turn the
Handwheel
until
the
feeds are
at
their
highest
position.
Standard
height
of
Main
Feed
is 0.47”
(3/64)
1.2mm
above
the
needle
plate
at
its
rearend
tooth.
A
straight
edge
can be
placed
across
the
top
of the
feeds
(Fig.
41).
Loosen
Feed
Dog
Screws
(Fig.
40,
A&
B)
and
raise
or
lower
feeds
until
the
proper
height
is
obtained
(Fig.
41).
Retighten
screws (A
&
B).
To
tilt
the
Feed
Dogs,
remove
Plug
Screw
(Fig.
39.
C)
and
loosen
Feed
Bar
Flinge
Pin
Screw
(D).
Remove
screw
(F)
and
turn
screw
(F)
until
the
desired
tilt
is
obtained.
Retigh
ten
screw
(D)
and
replace
screws
(C
& F).
Woven
materials
Set
feeds
level
Knit
materials
-—
Tilt
feeds
higher
in the
front
than
the
rear
1
---___
Fig.
41
H
r)
-l
‘‘
/
I,
q
C,
Fig
39
Fig.
40
From the library of: Diamond Needle Corp

PRESSER
FOOT
ARM
ALIGNMENT
(Fig.
42)
[,ooseii
alcw
(S
I
nit)
move
Piessir
Am
(I’)
In
the
right
or
let
I
ililtit
tile
I;iee
ot
(lie
Piesset
Arm
lunches
the
Mwliine
Arm
evenly.
Siemmiely
I
I(’,IItemI
silew
St.
501.
5
l1/IV
I,
V
I
‘Fi’\t
PRESSER
FOOT
LIFT ADJUSTMENT
(Fig.
42, 43,
44)
Hg.
43
Loosen
SCICWS
holdiig
Regiihitorx
(11g.
42,
W &
lig.
43,
V)
‘l’uni
Regulators
to
allow
the
highest
lilt.
Tigh
ten
both
screws.
Turn
I
landwheel
Un
[ii
Needle
Bar
is
in
the
lowest
position.
Remove.
(2)
lock
screws
(Hg.
44,
N).
Turn
screw
(M)
left
or
right
until
a
lilt
is
obtained
of
.236”
(I
5/64)
6.0mm.
Replace
screws
(N).
After
tius
setting
has
been.
made,
position
Regulators
(V
&
W)
as
stops
so
they
are
in
contact
with
the
Presser
Arm
(P)
and
F
not
Lilt
Lever
(Z).
CHAINSTITCH
LOOPER
THREAD
CONTROL
ADJUSTMENT
(Fig.
45)
Loosen
screws
holding
Looper Thread
Takeup
Eyelets
(A)
and
move
eyelets
until
the
coiled
ends
line
up with
the
engraved
line
on Guide
Bracket
(B).
Tighten
both
screws.
Turn Handwheel until
the
Needle
Bar
is
at
the
highest
position.
Loosen
tile
two
screws
holding
bracket
(B).
Set
the
bracket
in
a
horizontal
position.
With
the
left
screw loose,
position
Looper
Thread
Takeup
Gtude
(D)
so
that
the
bottom
edge
of
guide (D)
is
.060”
(1
/
1
6) 1.5mm
above
the
top
of
bracket
(B).
Tighten
both
screws
securely.
Loosen
the two
screws
holding
takeup
(C)
and
turn
the
llandwheei
until
the
Needle
Bar
is
at
the highest
position.
Set
the
takeup
(C)
so
that
the
flat
portion
is
at
a
100
angIe
to bracket
(13).
‘l’igliten
takeup
screws.
Check
to
make
sure
that
the
takeup
clears guide
(D).
Fig.
44
w
515.
516/IV
Lig.42
V
I’
E
i.
Fig. 45
From the library of: Diamond Needle Corp

515.
5l(/IV
U
(;
RESPECTIVE POSITIONS
REQUIRED
AT
MEASURING
II’
5H..-2.()
A)
Right
Needle,
at
upper
dead
Point.
B)
Right
Looper,
at
left
dead Point.
C)
Left
Looper,
at
left dead
Point.
(Needle
Size 11)
D)
Left
Looper,
at
left
dead
Point.
(Needle
Size I
4)
E)
Chainstitch
Looper,
at
left
dead
Point.
(Needle
Size
II)
F) Chainstitch
Looper,
at
left dead
Point.
(Needle
Size
14)
G)
Maui
Feed
Dog.
at
upper
dead Point.
H)
Highest
height
of
Presser
Foot
lifted.
I)
Needle,
at
upper
(lead
Point.
J)
Right Looper,
at
left
dead
Point.
(Needle
Size
9)
K)
Left
Looper,
at
left
dead
Point.
(Needle
Size
9)
L)
Left
Needle, at
upper
dead
Point.
from
Needle Plate
top
to
Needle
Point.
from Left
side
of
Needle
to
Looper
Thread
Eye
Center.
from
Left
side
of
Needle
to
Looper Point.
from Left
side
of
Needle
to
Looper
Point.
from Left
side
of
Needle
to
Looper Point.
from Left
side
of
Needle to
Looper Point.
from Needle
Plate top
to
top
Edges
of
Teeth.
from
Needle Plate
top
to
Sole
of
Presser
Foot.
from
Needle Plate
top
to
Needle
Point.
from
Left
side
of
Needle
to
Looper
Thread
Eye
Center.
from
Left
side
of
Needle
to
Looper
Point.
from Needle
Plate top
to Needle
Point.
TIMING
GAUGES
A
(
I
55
5O,
504/IV
4’
0
514
IV
‘So
I
323-R82•UU
Etr_‘
BASIC
POSITIONS
ON
MEASURING
— 16-
From the library of: Diamond Needle Corp

MILLIMETER-INCH
FRACTION
&
DECIMAL
CONVERSION
CHART
.134
.138
.142
.146
•
I
50
•
154
.157
1
6
I
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.169
6.8
6.9
7.0
71
7.2
7.3
7.4
7.5
7.6
26$
.272
.276
.280
.283
.287
.291
.295
.299
.173
.177
.181
.185
.189
7.7
7.8
7.9
8.0
8.1
A
I’l’R.
APPR.
I
PPR.
MM
IN(’II
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.
FRAC’I.
.
IRACT.
0,
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3.4
6.7
1
7/64
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0.2
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3.5
0.3
1
/ei
.01
2
3.o
9/64
0.4
I/l
.016
3.7
.
•5
..
.020
3.8
.
.
-
9/32
0.
.024
3.9
0.7
.028
4.0
5/32
0.8
1/32
.032
4.1
0.9
.035
4.2
19/64
1.0
.039
4.3
1.1
.043
4.4
11/64
1.2
3/64
.047
4.5
1.3
3/64
.051
4.6
5/16
.4
.055
4.7
1.5
.059
4.8
3/16
—.-
--..-
.-
--
-.-
..
1.6
1/16 .063
4.9
1.7
.067
5.0
21/64
1.8
.071
5.1
.9
.075
5.2
1
3/64
2.0
5/64
.079
5.3
2.1
.083 5.4
.213
8.7
1
1/32
.343
2.2
.087
5.5
.217
8.8
.346
2.3 .091
5.6
7/32
.220
8.9
.350
2.4
3/32
.094
5.7
.224
9.0
.354
2.5
.098
5.8
—
.2289.123/64
.358
‘
.102
5.9
.232
9.2
.362
2.7
.106
6.0
15/64
.236
9.3
.366
2.8
7/64
.110
.
6.1
.240
9.4
.370
2.9
.114
6.2
.244
9.5
3/8
.374
3.0 .118
6.3
.248
9.6
.378
3.1
.122
6.4
1/4
.252
9.7
.382
3.2
1/8
.125
6.5
.256
9.8
.386
3.3
.130
6.6
.260
9.9
25/64
.390
6.7
10.0
.394
6.8
.303
.307
.311
.315
.319
.193
.197
.201
.205
.209
8.2
8.3
8.4
8.5
8.6
.323
.327
.330
.335
.339
20.0
25/32
.787
50.0 1-31/32
1.968
80.0
3-5/32
3.150
30.0
.
1-3/16
.T81
.
60.0
1-23/64
2.362
90.0
3-35/64
3.543
40.0
1-37/64
1.575
70.0 2-3/4
2.756
100.0
3-15/16 3.937
—
17--
From the library of: Diamond Needle Corp

From the library of: Diamond Needle Corp

WILLCOX
&
GIBBS
500/IV
PARTS CATALOG
- 19—
From the library of: Diamond Needle Corp

N.D
\
C-) I
2xi
tJJ m
-t1
0<
‘i
\
-Th
From the library of: Diamond Needle Corp