Lewis 150-1 Parts list manual
•
LEWIS
PARTS and INSTRUCTIONS
Catalogue
194-5
150
Class Machines
Models
150-1
150-5
150-6
150-6TS
150-7
150-9
150-15
150-16
150-17
150-20
150-23
PRODUCT
OF
®
ll/J"ZU.m.Jl;.ic.c:':I.Q.:£.
MACHINE
COMPANY
400
N.
Franklin
St.
Chicago,
Ill.
60610
PRINTED
IN
U.
S.
A.
•
•
LEWIS
CLASS
150
MACHINES
INDEX
Adjusting
Chart
• . . . . . .. . . . . . . . . . . . . . . . .
Adjusting
Looper
. . . . . . . . . . . . . . . . . . . . . . .
Belt
Loop
Loops
••
Parts
for
3/8"
and
5/
1
6"
wide
.. . ....... .. .. ...... .
Cylinder
Base
Parts
and
their
Adjustments.
Feeds
••••.•
....... ... ........ .......
Flared
Skirts.
.... .. . .... ... . ..... .....
Feed
Plates
.•
Feed
Plate
Holders.
.. . ...... . ........ .. .
Folders
........
. .. .. ......... . .. . . ..
General
Instructions
•••
.. ...
..
. ....
Hemming
Flared
Skirts:
Parts
for,
See
Plate
8.
Parts
to
adjust
pressure
of
Feed
Plates
.
.•.....
.,
.................
.
Instructions
for
Belt
Loop
Machine
. . . . . . . . . . .
Instructions
-
General
•
..••
a • . . . . . . . . . . . . .
Instructions
for
Ordering
Parts
. . . . . . . . . . . .
Instructions
for
Using
Catalogue
••
,
Model
Numbers
and
Serial
Numbers
Model
150-1
.•
. . . ..........
Additional
Parts
for
Model
150-1
Plates
for
Model
150-1
•.•...•
Model
150-5
•.••••.•••••.••
Additional
Parts
for
Model
150-5
See
Plates
for
Model
150-1
•••••
. .
. . ..
. . .
.....
PAGE
13,
14
16-19
93,94
12
11,114
11
115
116
11 7
7-19
11,
53
91,92
7-19
5
5
5
1
44-54
54
46-53,110
56
56
46-53,110
From the Library of Superior Sewing Machine & Supply LLC
2
LEWIS
CLASS
150
MACHINES
INDEX
Model
150-6
.
.............
.
Additional
Parts
for
Model
150-6
•
Instructions
for
Model
150-6
•••••
Plates
for
Model
150-6
•••••••••
Model
150-6TS
••••••••.••••..
Additional
Parts
for
Model
150-6TS
Instructions
for
Model
150-6TS
Plates
for
Model
l
50-6TS
•••••••
Model
150-7
.•....
.........••
. .
. .
•
Additional
Parts
for
Model
150-7
•
Instructions
for
Model
150-7
•••
Plates
for
Model
150-7
•••••••
. . . •
Model
150-9
..•....•.....
. .
Additional
Parts
for
Model
150-9
. . .
Plates
for
Model
150-9.
• . . . . . .
..
Model
150-15
.••.••••.••...•.
. . . . . .
Additional
Parts
for
Model
150-15
•
Plates
for
Model
150-15
••••••••
Model
150-16
................
.
. . .
. . . . . •
. . .
..
Additional
Parts
for
Model
150-16
••••••
..
Instructions
for
Model
150-16
. . . . . . . . . ...
Plates
for
Model
150-16
••••••••••
•
Model
150-17
..........•.....
Additional
Parts
for
Model
150-1
7 •
See
Plates
for
Model
150-1
••••••
... .
.....
. . . ....
. . . . . . .
Model
150-20
Model
150-23,
.. ..... .. ... ... ..... . .....
Additional
Parts
for
Model
150-23
Instructions
for
Model
150-23
Plates
for
Model
150-23
.••••••
.. . . . .
Needles
. . . . . . .... .. . ..... . ... .... .
Oiling
Machine
e • • e e e e • e e e e • e O e e O • 0 e • e e e
Parts
List
including
all
Models
.. ... . . .. . .. ..
PAGE
58-60
60
57
59,
111
61-65
64,65
61
63,111
66-71
70,
71
67,68
69,113
72-76
75-76
74,111
77-80
80
79,111
81-93
86-90,93
91-92
82-85,112
96
97
46-53,111
81-94
98-109
106-109
98-100
102-105,113
8
9
20-43
• •
• •
From the Library of Superior Sewing Machine & Supply LLC
LEWIS
CLASS
150
MACHINES
INDEX
•
Plate
Numbers
-
See
Models.
See
below
•••••••••
•
Presser
Feet
.
........
. • • • • • • • • • • • • • • • • 0
Regulating
Length
of
Stitch
....... ...... . . .. .
Ridge
Forming
Disc
.. . ....... .... .. . . ...
..
Ridge
Forming
Disc
Regulator
.. ... ......... .
Retainer
or
Cloth
Clamp
• • • • • • • • • • • • •
Cl
• • • • •
Speed
of
Machine
•••••
.... . . . ........ .. ..
Serial
Numbers
and
Model
Numbers.
. . . . . . . . . . .
Thread
•••••••.
. .. . ... . . .. .. .. .... .. ..
Threading
Machine
.......
Timing
and
Adjusting
Charts.
Unpacking
Machine
•••••••
........ . ... ....
. . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . .
3
PAGE
9,118,119
12
9,10,120
10
19,20
9
5
8
7
13,
14
7
From the Library of Superior Sewing Machine & Supply LLC
4
PLATE
NO.
1
IA
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
LEWIS
CLASS
150
MACHINES
INDEX
PLATES
T
irning
Chart
.••••••
T
irning
Chart
•••••••
Parts
For
Model
150-1
Parts
For
Model
150-1
Parts
For
Model
150-1
Parts
For
Model
150-1
Parts
For
Model
150-1
Parts
For
Model
150-1
Parts
For
Model
150-1
Parts
For
Model
150-l
.. .... ..
..... . . . .
.. . ..... . ... .
. . . . . . . . .
. .. .... ......
.... .... . . .. .
. . . . . . . . . . . ..
Additional
Parts
For
Model
150-6
••••••
Additional
Parts
For
Models
150-6,
l
50-6TS
•••.••......••.•.••••.
Additional
Parts
For
Model
150-7
••••••
Additional
Parts
For
Model
150-9
••••••
Additional
Parts
For
Model
150-15
•••••
Additional
Parts
For
Model
150-16
•••••
Additional
Parts
For
Model
150-16
•••••
Additional
Parts
For
Model
150-16
•••••
Additional
Parts
For
Model
150-23
Additional
Parts
For
Model
150-23
Additional
Parts
For
Model
150-23
Additional
Parts
For
Model
150-23
Additional
Parts
For
Models,
150-1
and
150-5
•.••••••••••
Additional
Parts
For
Models,
. . . . .
.. ..
150-6, 150-9,
150-15
and
150-17
•••••
Additional
Parts
For
Model
150-16
••••
PAGE
NO.
13
14
46
47
48
49
50
51
52
53
59
63
69
74
79
33
84
85
102
103
104
105
110
111
112
25
Additional
Parts
For
Models,
150-7
and
150-23
• • • • • • • • • • • • • • • •
113
•
From the Library of Superior Sewing Machine & Supply LLC
-~-
'
•
•
INSTRUCTIONS
FOR
USING
CATALOGUE
TO
ORDER
PARTS
5
The
Model
150-1
Machine
is
the
basic
machine
used
in
compiling
this
catalogue
that
is
the
majority
of
parts
used
in
the
Model
150-1,
are
used
in
all
the
models
of
the
class
150
Machines.
Additional
parts
used
to
make
each
Model
are
listed
under
each
model
number.
To
find
a
part
needed,
note
model
number
on
the
machine
for
which
the
part
is
wanted,
and
the
index
will
show
the
page
number,
referring
to
the
model.
The
Model
No.
is
located
on
top
of
the
head
of
the
machine.
***************************************
The
Serial
No.
of
each
machine
is
stamped
in
the
arm
under
the
top
cover.
***************************************
State
Model
No.
and
Serial
No.
of
machine
when
ordering
parts.
Turn
to
the
plate
showing
drawings
of
machine
to
obtain
part
number.
If
part
cannot
be
located,
then
the
part
is
common
to
Model
150-1,
orto
the
model
referred
to
at
the
bottom
of
the
page
of
parts
listed.
The
parts
listed
and
plate
drawing
in
each
model
section
are
the
additional
parts
used
over
the
models
referred
to
at
the
bottom
of
page
of
parts
listed.
If
part
number
is
known
turn
to
General
parts
list
for
description
and
best
plate
for
locating
part.
January,
1971
From the Library of Superior Sewing Machine & Supply LLC
6
The
plate
drawings
show
only
the
standard
parts
such
as
presser
feet,
folders
and
etc.
For
parts
other
than
standard,
see
lists
on
last
pages
of
catalogue,
also
see
plates,
22, 23,
24,
and
25.
Refer
to
index
for
following
subjects:
Feeds.
Feed
Plates.
Folders.
Presser
Feet.
Ridge
Forming
Disc.
• •
.)
•
From the Library of Superior Sewing Machine & Supply LLC
•
•
GENERAL
INSTRUCTIONS
FOR
THE
INSTALLATION,
ADJUSTMENT,
AND
OPERATION
OF
LEWIS
CLASS
150
MACHINES
UNPACKING
MACHINE
7
To
remove
the
machine
from
the
box,
take
off
the
cover
and
remove
the
nails
and
screws
that
hold
the
brace
blocks
in
position.
Use
a
nail
puller
to
avoid
breaking
the
machine.
These
blocks
are
held
by
nails
or
screws
driven
through
the
outside
of
the
box.
The
knee
lifter
is
attached
to
the
side
of
the
box,
and
the
other
small
parts
will
be
found
wrapped
in
a
package.
Be
sure
to
look
carefully
through
the
material
used
for
packing
be-
fore
destroying
it,
so
that
you
will
find
all
the
parts
and
equip-
ment
that
goes
with
the
machine.
Lift
the
machine
out
of
the
box
very
carefully
to
avoid
breaking
the
tension
studs
as
these
parts
project
beyond
the
head
of
the
machine.
Set
up
the
machine;
clean
away
accumulated
lint
and
dust,
especially
from
the
looper.
Place
the
machine
on
the
bench
with
the
pulley
lined
up
with
the
transmitter,
and,
assemble
the
knee
lift
lever
to
the
machine,
The
machine
should
be
set
on
the
table
so
that
the
knee
lift
lever
is
1/2"
from
the
edge
of
the
table.
Mark
the
three
holes
for
the
machine
screws
and
bore
for
the
screw
holes;
bore
the
hole
for
the
belt;
place
the
f.elt
pad
under
the
machine
and
fasten
the
machine
to
the
table,
using
the
three
machine
bolts
that
were
used
to
hold
the
machine
into
the
packing
case.
HAND
WHEEL
The
top
rim
of
hand
wheel
turns,
when
facing
the
pulley,
away
from
the
operator
or
clockwise.
The
pulley
is
2"
diameter
at
the
pitch
line
of
the
belt
groove.
THREADING
From
the
spool
stand,
pass
the
thread
through
the
eye-
let
just
back
of
the
tension
disc,
then
between
the
tension
disc
on
the
left
side,
then
lift
thread
over
the
pin
which
passes
through
the
tension
discs;
then
through
the
pig-tail
eyelet
over
the
needle
bar,
then
through
the
hole
in
the
needle
clamp,
then
through
the
eye
of
the
needle.
From the Library of Superior Sewing Machine & Supply LLC
8
REMOVING
WORK
See
that
the
needle
is
out
of
the
cloth.
Lower
the
feed
plates
and
retract
the
disc
and
give
the
work
a
quick
jerk
which
will
break
the
thread.
We
reserve
the
right
to
change
specifications
or
de-
signs
at
any
time
without
incurring
the
obligation
to
install
such
changes
on
machines
previously
manufactured.
NEEDLE
SIZES
The
needles
are
furnished
in
the
following
sizes,
order
by
number:
Taper
Point
Not
Scarfed
29-492
1
/2
Taper
Point
0
15
Front
Scarf
29-343
29-343
½
29-344
29-344
½
Sharp
Point
15°
Front
Scarf
29-493
29-493
½
29-494
29-494
½
Ordinarily,
sizes
29-343
½
and
29-344
will
serve
the
purpose.
A
full
range
of
needle
sizes
are,
however,
available
to
meet
all
requirements.
Use
ONLY
genuine
LEWIS
needles.
Look
for
the
copy-
righted
word
"LEWIS"
stamped
on
the
shank
of
each
needle.
THREAD
Use
any
good
grade
of
left-twist
three
cord
hard
finish
cotton
thread
in
sizes
70
to
100.
If
silk
thread
is
used,
select
either
"00"
or
"000".
REGULATING
DEPTH
OF
NEEDLE
PENETRATION
The
needle
penetrating
adjustment
is
located
on
top
of
the
cylinder
base
of
the
machine
and
is
a
dial
with
graduations,
showing
the
word
"More"
and
indicates
the
direction
in
which
to
turn
for
raising
the
ridge
forming
disc
for
a
deeper
penetration;
and
the
word
"Less
II
which
indicates
the
direction
to
turn
the
dial
to
obtain
less
needle
penetration
in
the
work.
ti
From the Library of Superior Sewing Machine & Supply LLC
-1'
1
•
•
9
SKIPPING
STITCHES
Examine
point
of
needle
to
see
if
it
is
blunt
or
turned
over.
Replacing
needle
will
generally
remedy
skipping
of
stitches.
REPLACING
NEEDLE
Insert
needle
into
needle
carrier
as
far
as
possible
and
tighten
set
screw.
Needle
should
bear
slightly
on
the
needle
guide.
IMPORT
ANT
--
OIL
MACHINE
DAILY
SPEED
The
LEWIS
Class
150
machines
can
be
operated
up
to
3000
stitches
per
minute.
A
speed
of
1800
to
2000
stitches
is
recommended
in
starting
a
new
machine
or
with
a
new
operator.
Speed
may
be
increased
to
suit
operator
or
class
of
work.
TIMING
All
basic
driving
parts
are
properly
timed
with
spot
screws.
PRESSER
FOOT
Place
new
needle
in
the
needle
carrier
as
far
as
possi-
ble
and
with
the
point
directly
over
the
needle
guide
adjust
the
foot
up
or
down
so
that
the
point
of
the
needle
is
under
scant
.010"
tension.
Observe
that
shank
of
needle
passes
over
the
needle
guide
freely.
RIDGE
FORMING
DISC
(Refer
to
Plate
lA)
The
disc
must
be
adjusted
to
be
in
the
center
of
the
slot
in
the
presser
foot,
and
so
that
the
nose
of
the
disc
is
set
in
relation
to
the
needle,
Models
150-1,
150-6,
150-6TS,
150-7,
150-17.
For
other
models,
refer
to
special
instructions
on
model
in
question.
Before
setting
the
disc
be
sure
that
there
is
no
end
play
to
the
cradle
140-11.
Any
end
play
can
be
taken
up
by
ad-
justing
the
pivot
bearing
screw
18-869,
Set
Screw
1003
must
first
be
loosened
and
the
tension
of
Spring
21-377
released.
From the Library of Superior Sewing Machine & Supply LLC
10
Adjust
Pivot
Screw
18-869
just
enough
to
take
up
play
but
the
cradle
must
move
very
freely.
Check
by
moving
cradle
by
hand,
then
lock
pivot
screw
in
place
by
tightening
set
screw
1003
to
lock
18-869
in
place.
Adjust
tension
spring
21-377
with
nut
20-120.
Normal
setting
is
when
the
end
of
screw
for
adjusting
tensions
18-909
is
even
with
the
end
of
nut
20-120.
To
adjust
the
disc
to
center
of
slot
in
the
presser
foot,
loosen
set
screw
1022
in
collar
39-118
and
clamp
screw
1158
m
crank
448-131
and
set
disc
to
slot,
at
the
same
time
set
the
disc
so
that
when
the
point
of
the
needle
is
at
the
center
of
the
slot
in
presser
foot
and
at
center
of
the
disc,
the
point
of
the
needle
will
be
1/16"
from
where
the
small
radius
on
nose
of
the
disc
joins
the
periphery
of
the
disc.
This
setting
is
made
when
the
disc
is
at
its
most
advanced
position.
Tighten
clamp
screw
1158
in
crank
448-131
and
set
screw
1022
in
collar
39-118
and
set
the
collar
to
take
up
all
end
play
in
the
ridge
forming
disc
shaft.
To
remove
the
ridge
forming
disc,
depress
the
left
hand
feed
plate
holder,
remove
the
nut
20-80
on
end
of
disc
shaft
and
remove
the
washer
40-144
and
disc.
When
reassemb-
ling
the
disc,
care
must
be
taken
that
the
key
in
flange
107-44
engages
the
slot
in
the
disc.
Assemble
the
washer
40-144
and
nut
20-80
and
tighten
firmly.
RIDGE
FORMING
DISC
REGULATOR
{Refer
to
Plate
lA)
The
dialed
regulator
located
on
top
of
the
Cylinder
Base
raises
and
lowers
the
ridge
forming
disc
to
get
the
correct
needle
penetration
in
the
work
being
done
to
form
a
blind
stitch.
The
word
"More"
indicates
more
depth,
and
"Less"
indicates
less
depth
of
needle
penetration.
The
regulator
also
limits
the
amount
that
the
disc
can
be
raised
in
order
to
protect
the
needle
point
from
striking
the
ridge
forming
disc.
The
adjustment
is
made
by
turning
the
reg-
ulator
in
the
"More"
direction
as
far
as
possible
to
stop
pin
in-
side
of
the
regulator.
A
needle
must
be
in
the
needle
carrier
and
in
contact
with
the
needle
guide
and
point
of
needle
over
the
ridge
forming
disc.
•
6,
.,)
•
From the Library of Superior Sewing Machine & Supply LLC
•
•
11
Now
remove
the
set
screw
18-924
(See
Plate
No.
lA)
and
adjust
screw
18-923
that
contacts
the
cradle
140-11
in
which
the
ridge
forming
disc
shaft
is
mounted
and
adjust
so
that
the
ridge
forming
disc
will
lift
the
needle
off
of
the
needle
guide
.010"
which
is
equivalent
to
two
thicknesses
of
newspaper.
Re-
assemble
the
18-924
screw
and
set
tightly
to
lock
screw
18-923
in
place.
These
two
screws
are
located
inside
of
the
main
hexagon
headed
adjusting
screw
18-922.
The
adjustment
for
the
spring
tension
for
correct
pres-
sure
of
ridge
forming
disc
is
made
by
turning
nut
20-120,
locat-
ed
in
front
of
cylinder
base,
turn
in
clockwise
direction
to
get
more
tension
and
in
reverse
direction
for
less
tension.
FEED
The
feed
is
adjustable
relative
to
the
presser
foot
by
loosening
the
two
binding
screws
holding
the
feed,
and
turning
over
the
machine,
away
from
you,
until
the
feed
motion
is
at
the
lowest
point,
then
set
the
feed
so
that
it
is
1/32"
below
and
par-
allel
with
the
bottom
of
the
presser
foot,
for
light
and
medium
weight
materials;
for
heavy
work,
the
feed
must
be
brought
be-
low
the
presser
foot
about
3/64".
The
feed
is
adjustable
from
three
to
eight
stitches
per
inch.
FEED
PLATES
The
·Feed
Plates
press
the
work
against
the
bottom
of
the
presser
foot
and
feed,
when
on
its
feeding
stroke
by
two
springs.
There
must
be
enough
pressure
applied
to
hold
the
work
from
moving
when
the
needle
penetrates
the
material,
for
if
the
material
moves
with
the
needle,
a
loop
will
not
be
formed
for
the
looper,
resulting
in
skip
stitches.
Check
to
see
that
Feed
Plates
clamp
a
piece
of
news-
paper
before
point
of
needle
penetrates
material.
For
sewing
flared
skirts
with
wide
hems,
the
pressure
applied
for
each
feed
plate
can
be
varied
so
the
machine
will
feed
in
the
fullness
in
this
type
of
hem
if
the
operator
holds
back
slightly
on
the
hem.
From the Library of Superior Sewing Machine & Supply LLC
12
ADJUSTING
LENGTH
OF
STITCH
The
stitch
is
regulated
by
the
knob
426-47,
Plate
3,
located
on
top
of
the
arm
of
the
machine,
near
the
head.
First,
open
the
top
cover
of
the
machine
to
observe
the
feed
indicator·
on
the
shaft,
with
numerals
which
indicate
the
number
of
stitches
per
inch,
press
down
the
feed
knob
located
on
top
of
the
machine,
which
will
engage
a
slot
in
the
feed
mechanism;
now
turn
the
hand
wheel
over
and
away
from
you
while
holding
the
knob
in
the
slot
to
lengthen
stitch,
and
toward
you
to
shorten
stitch,
and
ob-
serve
through
the
opening
in
the
top
of
the
arm,
the
number
on
the
feed
disc
as
you
turn
until
the
numeral,
indicating
the
stitch-
es
per
inch,
is
directly
under
the
indicator.
CYLINDER
BASE
PARTS
AND
THEIR
ADJUSTMENT
{See
Plate
lA)
The
parts
in
the
Cylinder
Base
and
base
of
arm
opera-
ate
the
ridge
forming
disc,
depress
the
feed
plate
and
retract
the
disc
to
insert
and
remove
the
work
from
the
machine.
Parts
in
the
Cylinder
Base
where
possible
are
held
in
position
with
spot
screws
and
a
timing
mark
has
been
milled
in
the
bracket
50-222.
Parts
assembled
in
this
bracket
that
have
timing
marks
that
must
match
the
timing
mark
in
the
bracket
are
Eccentric
433-151
and
Gear
27-165.
Bracket
50-222
can
be
removed
from
the
machine
by
removing
Stud
17-145
which
will
disconnect
the
end
of
Connecting
Rod
447-118
from
Lever
45-352.
Next
remove
the
three
Screws
18-664
and
take
bracket
from
the
base
by
slipping
the
headless
bearing
Stud
865
out
of
the
hole
in
Ball
Joint
4124-51.
Gear
27-166
and
Eccentric
433-151
are
held
on
to
the
Shaft
14-458
by
the
Spot
Screws
1025
and
18-624,
therefore
when
assembling,
if
the
gear
teeth
are
engaged
so
that
the
timing
marks
all
coincide,
the
machine
will
function
properly.
Crank
448-131
is
clamped
to
the
disc
shaft
and
is
used
to
adjust
the
ridge
forming
disc.
(See
Plate
lA)
Crank
48-127
is
for
adjusting
Shaft
14-429
for
depres-
sing
feed
plates.
The
adjustment
is
made
through
a
hole
in
front
of
cylinder
base.
Loosen
screw.CS
331
in
crank
48-127
and
with
feed
plates
in
contact
with
presser
foot,
adjust
surface
(A)
of
14-429
so
that
two
thicknesses
of
newspaper
will
just
pinch
against
the
contact
surface
of
feed
plate
holders.
See
(A)
plate
lA.
Be
sure
feed
plttes
are
in
contact
with
bottom
of
presser
foot.
Check
the
above
setting
by
depressing
the
feed
plates
as
far
as
possible,
and
turn
over
hand
wheel,
and
see
that
crank,
48-127
turns
without
interfering
with
adjacent
parts.
•
'..,
.
"
•
From the Library of Superior Sewing Machine & Supply LLC
• •
ADJUSTING CHART
TURN
IN
DIRECTION
OF
ARROW FOR
MORE
OSCILLATION
TO
NEEDLE
AND
LARGER
THREAD
LOOP
LEWIS CLASS 150 SINGLE THREAD MACHINE
~
AMP
SCREW
EEDL1ECCENTRIC
BALL
TUD
ADJ. t
NEEDLE SHAFT
CRANK
I
1
'--LOOPER
CRANK_/
FIG. 1
koT
SCREW
IN
ECCENTRIC
FOR
TIMING NEEDLE AND
IS
SET
AT
THE
FACTORY
POSITION
OF
TIMING
MARK WITH EDGE
~
"V"
GROOVE
FIG.4
ADJ. 5
and
ADJ. 6
LOOPER
ECCENTRIC
SLEEVE-,
LOOPER
I
BALL
JOINT
FEED
PLATE
FIG.2
LOOPER
CRANK
MACHINE TURNS
IN
DIRECT!ON
OF
ARROW
MAIN SHAFT
LOOPER
YOKE
LOOPER CARRIER
ADJ, 4
LOOPER
CLAMP
SCREW
LOOPER
YOKE
PIN
HOLES-
~
j 1 !
rt-LOOPER
BALL
----
-;,:f--voKE
CLAMP SCREW
=
-----
-----
,
..
-----
4
32
FIG. 5
NEEDLE
CARRIER
/--CLAMP
SCREW
[
CLAMP
SCREW
"
,.
NEEDLE
,~/,.--
SHAFT
-=-
/
~ftt>
CRANK
/
RIDGE
FORMING
DISC
FIG. 3
A LOOPER
.,,--HOLE
PRESSER
MUST CLEAR CHAINING
FINGER
NOT
OVER
31
~,
ADJ. 3
CENTER
OF
LOOPER CARRIER
8
FIG. 6
LOOPER
SLOT
FIG. 7
NEEDLE
SETTING
SURFACE
SEE
~DJ.4
NEEDLE
SLOT
RETAINER
167-80
"g
...
~
"'
""
w
From the Library of Superior Sewing Machine & Supply LLC
TIMING
8r
ADJUSTING
CHART
LEWIS CLASS 150 SINGLE THREAD MACHINE
FEED
PLATE
HOLDER
--107·44
21·377-
II58L,
448·131
(LEFT)-~
I003t·
40-144
20-80
..
,1
'
~!
'
/
RIDGE
_J
'i,_'.J
FORMING DISC \ 140·11 ___J
\...14·429_/
102
2L-
39·
118-1;,
· '
18·909-
1
20-120-
_,;:ii
ic;t~
,--n1=1ni!hi'51.
RIDGE
FORMING
DISC
REGULATOR----
..
I,
I
1/.::0,
,;;-
r.-·1:_
~~
1
.PJtJ
I8·664-----M
---v5tf-
14
-3
95
~--i
-39-105-
50·222
•
•
865L.J
'
4124-51.J
_,-18·924
-18·922
4 8 -127
0
SCREW
DRIVER
HOLE
IN
CYLINDER
BASE
48-127
k=,r{,
REAR WALL
OF
MACHINE
---I284L
,~--
18
•6 2 4
--50-222
l-~----433-I51
21-344-.
39·117·,.
--,"·---
~
NEE
LIFTER_j
ROD
14-400
..
• 12 5
.
•
•
,,
~
-I
,,,
...
>
-
,i,.
....
A
From the Library of Superior Sewing Machine & Supply LLC
•
15
Crank
48-150
is
for
adjusting
the
position
of
the
Knee
Lifter
in
best
position
for
operator.
Collar
39-105
is
used
for
taking
up
end
thrust
of
Shaft
14-395
and
setting
tension
of
Spring
21-344
for
returning
ridge
forming
disc
and
feed
plates
to
sewing
position.
Collar
1284
is
used
for
taking
up
end
thrust
of
Shaft
14·-429.
Collar
39-117
is
used
to
take
up
end
thrust
of
knee
press
Shaft
14-400
and
for
setting
tension
of
Spring
21-344
for
holding
knee
lifter
out
of
contact
with
depressing
lever.
TIMING
THE
MACHINE
Needle:
A
No.
4
taper
point
needle
should
be
used
when
ad-
justing
the
needle
pas
it
ion.
To
secure
the
correct
adjustment
for
the
needle
swing
the
following
steps
must
be
taken
and
settings
made.
{See
ad-
justing
chart).
Plate
I.
Adjustment
2
To
set
the
point
of
the
needle
in
the
correct
position
when
the
needle
is
at
the
extreme
end
of
its
stroke
towards
the
hand
wheel,
the
follow
mg
steps
must
be
taken:
Turn
the
machine
over
until
screw
driver
slot
in
the
needle
eccentric
ball
stud
is
straight
up
and
down
with
the
two
dots
at
the
bottom.
See
Figure
1.
with
the
machine
in
the
above
pas
it
ion,
loosen
the
needle
carrier
clamp
screw
and
moye
the
needle
carrier
so
that
the
point
of
the
needle
is
1/16"
to
3/32"
from
the
edge
of
the
needle
setting
surface.
See
Figure
3.
Tighten
the
needle
carrier
clamp
screw.
Adjustment
3
To
set
the
needle
in
the
correct
position
in
the
needle
slot
-
See
Figure
7 -
the
following
steps
and
setting
must
be
rnade:
Loosen
the
needle
carrier
clamp
screw
and
move
the
needle
carrier
-
See
Figure.
2 -
in
or
out
so
that
the
rear
side
of
the
needle
will
just
clear
the
needle
slot
at
"A"
-
See
Figure
7 -
and
clear
the
needle
shoulder
of
presser
foot
at
"B"
about
.005".
Check
to
see
that
the
setting
for
the
needle
point
still
is
1/16"
From the Library of Superior Sewing Machine & Supply LLC
16
to
3/32"
from
the
needle
setting
surface
of
presser
foot.
Tighten
the
needle
carrier
clamp
screw.
LOOPER
The
correct
setting
of
the
looper
is
of
the
greatest
importance.
(See
adjusting
chart).
Plate
l.
The
looper
is
mounted
in
the
looper
carrier
assembly
-
allow
l/64"
space
between
looper
shoulder
and
end
of
looper
carrier
-
See
Figure
2 -
and
the
correct
assembling
of
this
unit
must
be
understood
in
case
for
any
reason
it
is
necessary
to
remove
or
replace
this
assembly.
The
looper
carrier
assembly
consists
of:
Looper
Yoke
-
in
which
are
the
looper
yoke
pin
holes
Clamp
Screw
Looper
Ball
Looper
Carrier
The
looper
carrier
and
looper
yoke
are
set
before
as-
sembling
these
parts
into
the
machine.
Now,
the
looper
ball
is
positively
located
on
the
shaft
of
the
looper
carrier
by
a
spot
screw.
The
looper
carrier
is
assembled
to
the
looper
yoke
so
that
the
distance
from
the
edge
of
the
looper
yoke
pin
hole
near-
est
the
looper
ball,
to
the
side
of
the
looper
ball
nearest
to
the
looper
yoke,
will
be
4-1/32".
See
adjusting
chart
-
Figures
5
and
6.
The
looper
has
means
for
the
following
adjustments,
which,
for
reference
to
the
drawing,
are
numbered
as
follows:
Adjustment
4
Means
for
adjusting
the
looper
position
on
the
right
hand
side
or
when
the
looper
is
taking
the
loop
from
the
needle.
Adjustment
5
Means
for
adjusting
the
looper
position
on
the
left
hand
side
or
when
the
needle
is
between
the
prongs
of
the
looper.
Adjustment
6
Means
for
adjusting
the
position
of
the
looper
from
left
to
right
or
right
to
left.
• •
•
From the Library of Superior Sewing Machine & Supply LLC
•
•
17
Adjustment
7
Means
for
adjusting
the
looper
in
and
out.
Before
setting
the
looper,
the
looper
carrier
assembly
must
be
in
accordance
with
instructions
for
Figure
5
and
Figure
6
and
the
needle
setting
must
be
as
described
in
adjustments
1,
2
and
3.
The
looper
is
and
can
be
timed
at
only
one
place.
TIMING
THE
LOOPER
Timing
the
looper
is
relative
to
the
needle.
Loosen
the
two
set
screws
on
the
looper
crank.
To
time
the
looper,
turn
the
machine
over
by
the
hand
wheel
by
turning
the
hand
wheel
towards
the
rear
of
the
machine
until
the
screw
driver
slot
in
the
needle
eccentric
ball
stud
is
straight
up
and
down
with
the
two
dots
at
the
bottom
-
See
Figure
1,
adjustment
1.
There
is
a
"V"
notch
cut
in
the
main
shaft
of
the
ma-
chine
which
will
be
at
the
top
of
the
shaft.
There
is
a
timing
mark
on
the
looper
crank
-
See
Fig-
ure
4.
Turn
the
looper
crank
until
the
timing
mark
on
the
crank
coincides
with
the
left
hand
edge
of
the
"V"
on
the
main
shaft.
This
timing
mark
will
not
vary
more
than
1/32"
plus
or
minus
relative
to
the
edge
of
the
"V".
Clamp
the
looper
crank
to
the
main
shaft
of
the
ma-
chine
with
the
two
set
screws.
ADJUSTING
AND
SETTING
THE
LOOPER
To
secure
the
correct
adjustment
of
the
looper,
the
following
steps
should
be
taken
and
in
the
same
sequence
as
here
given:
The
looper
is
first
adjusted
as
the
looper
is
taking
the
loop
from
the
needle.
The
position
for
the
long
prong
of
the
looper
is
to
have
the
point
of
this
prong
3/32"
from
the
inner
end
of
the
needle
eye
and
the
point
of
the
long
prong
just
clearing
the
scarf
of
the
needle.
From the Library of Superior Sewing Machine & Supply LLC
18
To
secure
this
setting,
the
following
steps
and
adjust-
ments
are
taken
and
made:
Turn
the
hand
wheel
in
clockwise
direction;
that
is,
the
top
of
the
hand
wheel
will
be
moved
away
from
the
operator
very
slowly
until
the
long
prong
of
the
looper
is
over
the
center
line
of
the
needle.
Loosen
the
looper
yoke
clamp
screw
-
See
Adjustment
4,
Figures
2
and
5 -
and
roll
the
looper
until
the
long
prong
of
the
looper
just
clears
the
scarf
of
the
needle.
Loosen
the
sleeve
clamp
screw
-
See
Figure
2 -
this
permits
the
looper
eccentric
sleeve
to
be
moved
from
left
to
right
-
and
slide
the
looper
eccentric
sleeve
-
Figure
2,
adjust-
ment
6,
until
the
long
prong
of
the
looper
is
3/32"
from
the
in-
ner
end
of
the
needle
eye.
Check
to
see
that
point
of
the
long
prong
of
the
looper
just
clears
the
scarf
of
the
needle.
Tighten
the
looper
yoke
clamp
screw
-
See
Figure
5,
and
the
looper
eccentric
sleeve
clamp
screw
-
See
Figure
2.
Continue
to
rotate
the
hand
wheel
in
clockwise
direc-
tion,
until
the
short
prong
of
the
looper
is
at
nearest
point
when
passing
chaining
finger,
if
foot
has
chaining
finger,
not
exceed-
ing
1/32"
-
See
Figure
7.
If
the
short
prong
does
not
clear
the
chaining
finger,
or
if
the
clearance
is
greater
than
1/32",
then
the
previous
adjustments
have
not
been
correctly
made,
and
these
should
be
re-made.
Continue
to
rotate
the
hand
wheel
in
clockwise
direc-
tion
until
the
short
prong
of
the
looper
has
passed
the
edge
of
the
looper
slot
in
the
foot.
If
the
short
prong
of
the
looper
does
not
enter
the
looper
slot
in
the
foot,
adjust
so
that
the
short
prong
will
clear
the
edge
of
the
looper
slot
in
the
foot
by
moving
the
looper
eccentric
sleeve
-
Adjustment
6,
Figure
2.
Move
the
looper
eccentric
sleeve
the
least
amount
possible
so
that
the
short
prong
clears
the
edge
of
the
looper
slot.
Care
must
be
taken
now
as
the
needle
may
strike
the
crotch
of
the
looper
when
the
needle
should
be
entering
between
the
prongs
of
the
looper.
Continue
to
turn
the
hand
wheel
in
clockwise
direction
until
the
point
of
the
needle
should
enter·
between
the
prongs
but
instead
of
so
doing
strikes
the
crotch
of
the
looper
-
the
follow-
ing
corrective
steps
are
required:
t: •
f;
•
From the Library of Superior Sewing Machine & Supply LLC
•
•
Loosen
the
two
set
screws
on
the
looper
crank
-
See
Figure
4,
and
turn
crank
slightly
in
a
clockwise
direction
until
the
needle
does
not
strike
the
crotch.
Tighten
the
set
screws
•
19
The
needle
must
enter
between
the
prongs
of
the
loop-
er,
clearing
the
two
prongs
about
an
equal
amount.
In
case
the
needle
should
not
enter
about
midway
of
the
two
prongs
-
to
correct
this,
loosen
the
sleeve
clamp
screw
-
Figure
2,
and
turn
the
looper
eccentric
sleeve
-
Adjustment
5,
Figure
2,
until
the
prongs
of
the
looper
are
about
an
equal
distance
from
the
needle.
When
this
setting
has
been
made,
tighten
the
sleeve
clamp
screw
-
See
Figure
2,
Continue
to
rotate
the
hand
wheel
in
a
clockwise
direc-
tion
until
the
point
of
the
long
prong
of
the
looper
is
over
the
center
line
of
the
needle.
Check
to
see
that
the
point
of
the
long
prong
of
the
looper
is
3/32"
from
the
inner
end
of
eye
of
the
needle
and
that
the
point
of
the
long
prong
just
clears
the
scarf
of
the
needle.
In
case
the
above
conditions
do
not
exist,
they
must
be
corrected
-
this
is
done
as
described
in
the
fifth
to
tenth
paragraphs
inclusive
under
the
heading
"ADJUSTING
AND
SETTING
THE
LOOPER".
Be
sure
to
roll
the
looper
-
Adjust-
ment
4,
Figure
5.
Do
not
turn
the
looper
eccentric
sleeve.
The
machine,
as
far
as
the
looper
and
needle
are
con-
cerned,
is
now
ready
to
sew.
Different
material
or
different
threads
may
cause
a
slight
variation
from
the
above
adjustments.
However,
these
adjustments
will
give
the
best
results
when
pad-
ding
or
hemming
the
more
heavy
materials.
When
hemming
silks
and
cotton,
however,
it
may
be
advisable
to
set
the
point
of
the
needle
1/16"
from
the
needle
setting
surface
on
the
pres-
ser
foot
-
Figure
3,
instead
of
3/32",
without
changing
the
loop
-
er
position
by
re-adjusting
the
needle
ball
stud
-
Adjustment
1,
Figure
1 -
the
timing
dots
on
the
ball
stud
should
be
turned
in
direction
towards
the
hand
wheel
to
obtain
slightly
more
throw
to
the
needle
resulting
in
a
larger
thread
loop.
RETAINER
OR
CLOTH
CLAMP
The
Cloth
Retainer
located
in
the
cloth
opening
of
the
presser
foot
must
at
all
times
be
adjusted
a·s
close
to
the
needles
as
possible
and
set
relative
to
the
ridge
forming
disc
to
firmly
hold
the
work
on
to
the
disc
while
the
needle
is
penetrat-
ing
the
material.
If
the
work
is
carried
along
with
the
needle,
no
loop
will
form,
resulting
in
missed
stitches.
From the Library of Superior Sewing Machine & Supply LLC
This manual suits for next models
10
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