Columbia 300 Series User manual
From the library of: Superior Sewing Machine & Supply LLC
INSTRUCTION
BOOK
AND
PARTS
CATALOG
FOR
CLASS
300
BLINDSTITCH
MACHINES
MODELS
300-5
300-14
300-5
D
300-15
300-10 300-20
300-11 300-20
300-12 300-30
300
MF
Second
Edition
Copyright
1959
by
R
D
Union
Special
Corporation
Rights
Reserved
in
All
Countries
CORPORATION
INDUSTRIAl
SEWING
MACHINES
CHICAGO
New
York
Office
for
Columbia
Machines-
370
7th
Avenue.
N.Y
••
N.Y.
10001
Printed
in
U.S.A.
April,
1974
1
From the library of: Superior Sewing Machine & Supply LLC
2
INSTRUCTIONS
for
USING
this
BOOK
GENERAL
INDEX
to
ALL
subjects
appears
on
Pages
3
to
6.
GENERAL
INSTRUCTIONS
applying
to
ALL
MODELS
appear
on
Pages
7
to
16.
These
in-
structions
cover
adjustments,
threading,
needle
sizes,
etc.
covering
all
models.
ADDITIONAL
INSTRUCTIONS
for
EACH
MODEL
appear
on
Pages
17
to
31.
These
instruc-
tions
cover
the
special
features
of
each
model
which
do
not
apply
to
other
models.
See
INDEX
(Page
3)
for
each
model.
HOW
TO
ORDER
PARTS
For
your
convenience
in
finding
parts
and
part
numbers,
we
have
broken
down
the
machine
into
its
various
component
groups
(such
as
main
shaft
group,
presser
foot
group,
needle
drive
group).
Pictures
of
these
groups
are
shown
in
PLATES
numbered
from
A
to
33.
The
Plates
I
are
listed
in
the
Index
(Pages
4
and
5)
with
a
description
of
the
Group
and
the
model
numbers
I
of
the
machines
in
which
these
groups
are
used.
All
the
groups
used
in
each
model
are
also
listed
under
the
Model
heading
(See
Index
Page
3
for
each
model).
The
CROSS-REFERENCE
CHART
on
Pages
33, 34,
and
35
show
the
Groups
and
the
various
models
in
which
each
group
is
used.
To
find
any
part
number,
first
refer
to
the
Model
number
and
Serial
number
stamped
into
the
top
cover
of
each
machine.
Determine
the
group
in
which
each
part
belongs,
find
the
Plate
for
this
group,
and
locate
the
part
and
its
number.
The
descriptions
of
the
parts
are
on
the
page
opposite
each
Plate.
If
the
part
number
is
known,
refer
to
the
Numerical
Index
(Pages
105-108)
to
locate
all
of
the
Plates
of
Groups
where
the
part
is
used.
ORDER
by
PART
NUMBER,
giving
DESCRIPTION,
QUANTITY,
MODEL
number
and
SERIAL
number
of
the
machine.
I
I
I
I
I
From the library of: Superior Sewing Machine & Supply LLC
I
i
INDEX
Adjusting
Chart
..........••......•.....
Addit
i
onal
Instructions;
See
each
Model.
Apron,
Work
............
.
Adjusting
Length
of
Stitch
..
Catalogue,
Instructions
for
Using.
Chart
for
Tim
i
ng
and
Adjusting.
Cloth
Clamp
......••••..•.•...•.•..•.
General
Instructions,
All
Models
.....••
Groups,
Chart
of
Models
and
Plates
.•••••
Instructions
for
Using
Catalogue
•...••.••.•
Instructions,
General
.•..•.••••..•••.••.
Instructions
Additional,
See
Each
Model.
.•
Length
of
Stitch
.
.......................................................
.
Looper
Adjustments
.
......................
.
............................
.
MODELS
Model
No.
300-5
300-10
300-11
300-12
300-14
R
300-15
300-20
General
Utility
Machine
...••••
Additional
Instructions
•.•.
Rolled
Edge
Machine
...................................
.
Additional
Instructions
..•.•.•••.••••••..•••.•••.••••••••
Pants
Bottom
Machine
.
...............................
.
Additional
Instructions
.•••.••••.•••••••.•••.•••••.••••
Facing-
Tacking
Machine
Additional
Instructions
Padding
Machine
..•.•.
Additional
Instructions
Book
Seam
Machine
••
Hemming
Machlne
.....................................
.
Additional
Instructions
.................................
.
Needle
Sizes
•..••.•..•..
Needle
Replacements
..••
3
PAGE
10
11
12, 12A
1
10
16
7
to
16
33,
34, 35
1
7
to
16
12,
12A
9,
13, 14,
15
17
18
19
20, 21
22
23
24
25,
26
27
28
29
30
31
9
8
From the library of: Superior Sewing Machine & Supply LLC
4
INDEX
PAGE
Needle,
Adjusting
Stroke
..•...••..••.•••••••.•.•..••.....•.....•..•.••••
11
Numerical
Index
of
Part
Numbers
....•.•...•.......•..•.••....••.•.•..•••
105,
108
Oi
ling
Machlne
.
........................................................
. 7
Operating
Machlne
.....................................................
. 7, 8, 9
PLATES
Plate
No's
A
Sundry
Parts
-
Head
and
Arm,
All
Models
..••..•..•.••.••.
36,
37
1
Main
Shaft
Group
-
300-5,
300-10, 300-11,
300-14
R,
300-15
..............................................
.
38,
39
2
Main
Shaft
Group
-
300-20
.•.••.•••••.•...••..•.••.•••••.
40,
41
3
Main
Shaft
Group
-
300
-12
.•..•.•
,
••••••••
, ,
•.•••••••.•••
42,
43
4
Looper
Drive
Group,
All
Models
..•••••.•••••.•••..•.•
,
••
44,
45
5
Needle
Drive
Group,
All
Models
.•••••.•••••••.•••••••
,
••
46,
47
6
"Clock
Dial"
Stitch
Depth
Adjustment
Group,
All
Models
.•..
48,
49
7
~
.r..lp
Stitch
Group
-
300-20
...•.•.•.•.••..•.•
,
.••••.....•.
50,
51
8
Skip
Stitch
Mechanism
-
300-20
•..•..•.•..••..••.•••.•.•.
52,
53
9
Presser
Foot
Group
-
300-5,
300-20
.•••....•••.•••.•.••..
54,
55
10
Presser
Foot
Group
-
300-12
..•.•.•.•••••••••.•...•.•••.
56,
57
11
Presser
Foot
Group
-
300-11
..•.••.••••.••••.••••.••.•
, .
58,
59
12
Presser
Foot
Group
-
300-14
R
•..••••••••••••••..•••.••.
60, 61
13
Presser
Foot
Group
-
300-10
•.•••••••••.•.••.••.•.••.•••
62,
63
14
Presser
Foot
Group
-
300-15
•••.•.••.••••.•..••.•••..••.
64,
65
15
Work
Table
and
Knee
Lift
Group
-
300-5,
300-15,
300-20
•••
66, 67
16
Work
Apron
Group-
300-5,
300-10,
300-11,
300-14
R,
300-15
..
300-20
.......................................
.
68,
69
17
Feed
Platten
Group
-
300-5,
300-11,
300-20
.••••••••••••••
70,
71
18
Feed
Platten
Group
-
300-10
..••.•••••••.••••••••..•..•.•
72,
73
19
Feed
Platten
Group-
300-14
R
••.••••••••••.••.••.••••.•.
74,
75
20
Feed
Platten
Group
-
300-15
••••.••.•.••••••••.•••.••.•••
76,
77
From the library of: Superior Sewing Machine & Supply LLC
Plate
No's
21
22
23
24
25
26
27
28
29
30
31
32
33
INDEX
Knee
Lift
Group
-
300-10, 300-11, 300-12,
300-14
R
.•..•..
Folder
Group
-
300-10
Folder
Group
-
300-15
Rib
Shaft
Group-
300-5,
300-10,
300-11,
300-14
R
...•••..
Rib
Shaft
Group
-
300-15,
300-20
...•••••••.•••.••.•••••••
Feed
Points,
All
Models
•.
Right
Hand
Rib
Drive
Group
-
300-12
..••.
Feed
Platten
Group
-
300-12
••••••.••••••
Left
Hand
Rib
Drive
Group
-
300-12
••••
Left
Hand
Rib
Adjusting
Group
-
300-12.
Work
Apron
Group,
Two
Rib
Machine,
300-12
•...•..••••••
Work
.
Support
Group-
300-12.
Work
Support
Bracket
Group
-
300-12
...•.•.•.••..•••.••.
Penetration
of
Needle
.••.••••••••••••
'Presser
Foot,
Mounting
on
Machine
Retainer
or
Cloth
Clamp
.•••••
Rib
Adjustment
...
Speed
of
Machine
.•
Threading
Machine.
Threading
Chart
.
Timing
Chart
Work
Apron
..
..........................................................
5
PAGE
78,
79
80,
81
82,
83
84,
85
86,
87
88,
89
90,
91
92,
93
94,
95
96,
97
98,
99
100,
101
102,
103
8,
9
9,
10,
11
15
12,
13
7
8,
12B
12B
10
11
From the library of: Superior Sewing Machine & Supply LLC
INSTRUCTIONS
FOR
THE
INSTALLATION,
ADJUSTING
AND
OPERATION
OF
ALL
COLUMBIA
CLASS
300
MACHINES.
UNPACKING
AND
SETTING
UP
OF
MACHINE
7
1.
To
remove
the
machine
from
the
box,
take
off
the
cover.
Use
a
nail
puller
to
avoid
breaking
the
machine.
Be
sure
to
look
carefully
through
the
material
used
for
packing
before
destroying
it,
so
that
all
the
parts
and
equipment
that
go
with
the
machine
will
be
found.
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.
Small
parts
will
be
found
wrapped
in
a
package.
l,
Set
up
the
machine;
clean
away
accumulated
lint
and
dust,
especially
from
the
looper.
3,
Place
the
machine
on
the
bench
with
the
pulley
lined
up
with
the
transmitter.
The
machine
should
be
set
on
the
table
so
that
the
knee
lever
is
1/2"
from
the
edge
of
the
table.
4.
Mark
the
two
holes
for
the
machine
screws
and
bore
for
the
screw
holes;
bore
the
hole
for
the
belt;
place
the
felt
pad
under
the
machine
and
fasten
the
machine
to
the
table,
using
the
two
machine
bolts
in
the
package
of
parts
shipped
with
the
machine.
5.
The
machine
may
be
run
3000
revolutions
per
minute;
it
is
suggested,
however,
that
the
machine
first
be
operated
at
about
2500
revolutions
per
minute
until
the
operator
becomes
used
to
the
machine,
and
then
step
up
the
machine
to
increase
the
speed.
6.
We
reserve
the
right
to
change
specifications
or
designs
at
any
time,
without
in-
curring
the
obligation
to
install
such
changes
on
machines
previously
manufactured.
HAND
WHEEL
7.
The
hand
wheel
turns
away
from
the
operator
in
clockwise
direction.
OPERATING
THE
MACHINE
OILING
8.
Before
starting
the
machine
make
certain
that
all
oil
cups,
and
all
openings
m~rked
with
red
paint,
are
filled
with
oil.
Should
your
machine
have
a
Top
Plate
stamped
"OIL"
push
the
plate
to
one
side,
oil
all
the
openings,
reset
and
lock
the
plate.
SPEED
9.
Check
the
speed
of
the
machine.
The
machine
should
run
at
a
minimum
speed
of
2500
revolutions
per
minute,
and
should
not
exceed
3000
revolutions
per
minute.
10.
To
be
certain
that
there
are
no
obstructions
in
and
around
the
machine,
press
the
knee-lifter
to
the
right,
turn
pulley
by
hand
in
the
direction
of
the
arrow
a
complete
turn.
From the library of: Superior Sewing Machine & Supply LLC
8
GENERAL
INSTRUCTIONS
THREADING
11,
To
thread
the
machine
turn
the
belt
pulley
by
hand
until
the
needle
arm
is
in
its
h i
ghest
possible
position,
Proceed
as
shown
in
Threading
Chart
Page
llB.
We
suggest
/#00
mercerized
thread.
INSERTING
WORK
12.
To
insert
work
in
the
machine,
press
the
knee
lifter
to
the
right.
(This
lowers
the
Apron,)
Then
place
the
folded
edge
or
sewed
edge
of
the
garment
DIRECTLY
UNDER
the
small
curved
slot
in
the
gauge
on
top
of
the
presser
foot.
Once
this
is
done,
the
rest
of
the
fold
should
be
held
against
the
guide
extending
in
front
of
the
presser
foot.
In
operating
the
machine,
just
watch
this
guide
(not
the
needle).
ADJUSTING
NEEDLE
PENETRATION
13.
Run
off
a
few
test
inches
and
inspect
the
work.
If
the
needle
does
not
catch
the
fabric
as
desired,
adjust
the
penetration
by
turning
the
dial
indicator
marked
"MORE"
or
"LESS",
following
the
instructions
below:
14.
Turn
this
dial
indicator
either
to
the
right
for
less
penetration,
or
to
the
left
for
more
penetration,
until
the
needle
catches
the
bottom
layer
of
the
garment
properly.
15.
Usually
it
is
sufficient
to
move
the
dial
indicator
a
few
graduations
(NOT
turns)
to
the
left,
to
obtain
the
desired
stitch,
however,
should
you
move
the
dial
indicator
a
few
graduations
and
get
no
results,
then
look
for
trouble
at
the
point
of
the
needle,
which,
very
likely,
will
have
been
turned
up
to
a
feather-edge,
causing
a
dull
point
that
prevents
the
needle
from
penetrating
the
fabric
properly.
Pass
your
finger
over
the
edge
to
see
if
the
needle
has
this
feather-edge.
If
it
does,
discard
the
needle.
NEEDLE
REPLACEMENT
16.
Before
inserting
the
new
needle,
turn
the
dial
to
the
right,
("LESS")
until
the
rib,
or
plunger,
remains
clear
of
the
needle,
or
else
the
needle
will
get
a
defective
point
again
as
soon
as
the
machine
is
started.
17.
When
replacing
the
needle,
make
sure
that
it
is
pushed
up
as
far
as
it
will
go,
and
tighten
tp.e
screw.
Then
turn
the
belt
pulley
slowly
and
look
to
see
that
the
full
bend
of
the
needle
in
back
of
the
eye,
rides
on
the
needle
guide
before
the
needle
enters
the
work.
If
it
does
not
,
take
the
needle
out
and
curve
it
just
eno-ugh
to
make
it
rest
on
the
guide,
under
a
slight
tension.
STARTING
TO
SEW
18.
You
are
now
ready
to
proceed
with
the
production.
Press
the
knee-lifter
to
the
right;
insert
the
work
as
explained
above,
release
the
knee-lifter,
and
guide
the
work
as
the
machine
pulls
it
from
you.
From the library of: Superior Sewing Machine & Supply LLC
...
GENERAL
INSTRUCTIONS
DO
NOT
touch
the
knee-lifter
while
the
machine
is
in
operation.
LOOP
SKIPS
19.
In
case
the
thread
breaks
too
frequently,
or
the
loop
skips,
or
the
fabric
gathers,
correct
this
fault
by
adjusting
the
tension
disc
by
turning
the
nut
either
right
or
left
until
you
get
a
smooth
line.
REMOVING
WORK
9
20.
To
remove
the
work
after
stitching,
see
that
the
needle
is
withdrawn
entirely
from
th e
fabric,
push
the
knee-lifter
to
the
right,
and
remove
work
with
a
quick
pull
away
from
you,
in
order
to
break
the
thread
and
lock
the
stitch.
NEEDLE
SIZES
21.
Needles
are
furnished
in
the
following
sizes,
order
by
size
number.
NO. NO.
Ordinarily,
sizes
2-i
and
3-k
needles
will
serve
the
purpose.
A
full
range
of
needle
sizes
are,
however,
available
to
meet
all
requirements.
22.
Use
ONLY
genuine
COLUMBIA
needles.
Look
for
the
copyrighted
word
Columbia
printed
on
each
box
of
needles,
THREAD
23.
Use
any
good
grade
of
left-twist
three
cord
hard
finish
cotton
thread
in
sizes
70
to
100.
We
recommend
No.
00
Mercerized
thread
or
its
equivalent.
If
silk
thread
is
used,
select
either
••
00"
or
"000".
REGULATOR
FOR
DEPTH
OF
NEEDLE
PENETRATION
24.
The
needle
penetration
adjustment
is
located
on
the
front
of
the
arm
column
of
the
machine,
and
is
a
dial
that
has
graduations,
show
the
word
"MORE"
which
indicates
the
direc-
tion
in
which
to
turn
the
dial
lever
for
a
deeper
needle
penetration;
and
the
word
"LESS"
which
indicates
the
direction
to
turn
the
dial
lever
to
obtain
less
needle
penetration
in
the
work.
(See
work
apron
adjustments
for
setting
regulator).
TIMING
25.
All
basic
driving
parts
are
properly
timed
with
spot
screws.
From the library of: Superior Sewing Machine & Supply LLC
LOOPER
CLAMP
SCREW A
B
FIG.l
LOOPER~.
n
NEEOL~
··~
FEED
POINT
BRIDGE
NEEDLE
NEEDLE
GU
I
DE
FIG.7
ADJ
. 6
LOOPER
HOLE
ECCENTRIC
BALL
STUD
AOJ.4
NEEDLE POINT
CLOTH OPENING
ADJ.
7
FIG. 6
ADJUSTING
a TIMING CHART
COLUMBIA
CLASS
300
MACHINES
FIG. 2
-~-?
,
NEEDLE
SHAFT
,
-~::..'?..
__.---
CRANK
_r~Jt'
WORK APRON
STOP
SCREW
AOJ
.
I3
FACE OF HEAD
ECCENTRIC
BUSHING
FIG. 3
ADJ.
II
PIVOT
SCREW
DIAL
ADJUSTMENT
ON
ARM
ROO
CONTACT
WITH
APRON
AOJ.I2
.....
0
From the library of: Superior Sewing Machine & Supply LLC
11
GENERAL
INSTRUCTIONS
PRESSER
FOOT
26.
The
presser
foot
must
be
mounted
on
the
machine
with
care.
It
is
clamped
to
the
head
of
the
machine
by
a
screw
under
the
head,
and
with
two
screws
on
the
end
of
the
head,
that
clamps
the
foot
bridge
to
the
machine.
The
screw
between
the
bridge
screw
is
eccentric,
and
is
for
adjusting
the
foot
up
or
down.
27.
To
mount
the
presser
foot,
assemble
with
the
four
screws.
Let
the
two
bridge
screws
hold
the
foot
loosely,
and
tighten
the
clamp
screw
under
the
head.
Now
using
the
eccentric
screw,
adjust
the
foot
as
follows:
28.
With
a
new
needle
in
the
needle
carrier,
rotate
the
handwheel
in
a
clock-
wise
direction
until
the
point
of
the
needle
is
over
the
center
of
the
needle
guide.
Turn
the
eccentric
screw
and
adjust
the
foot
up
or
down
until
the
needle
just
contacts
the
needle
guide,
and
tighten
the
bridge
screws.
Rotate
the
handwheel
in
a
clock-
wise
direction
until
the
point
of
the
needle
is
5/8
inch
from
the
right
hand
side
of
the
cloth
opening.
At
this
position,
the
needle
should
be
contacting
the
presser
foot.
29.
Recheck
the
needle
clearance
on
the
right
and
left
hand
side
of
the
presser
foot
and
if
not
correct,
loosen
the
two
birdge
screws,
and
twist
the
foot
by
hand
to
obtain
the
correct
needle
clearance,
and
tighten
screws
making
sure
that
the
needle
is
in
light
contact
with
the
needle
guide.
ADJUSTING
NEEDLE
STROKE
30.
Rotate
the
handwheel
in
clockwise
direction
until
needle
carrier
is
on
extreme
left
hand
end
of
needle
stroke,
insert
and
clamp
a 3
1/2
size
needle
into
needle
arm.
Rotate
handwheel
until
point
of
needle
is
even
with
left
hand
side
of
looper
opening
in
the
presser
foot.
This
setting
is
made
by
loosening
the
needle
arm
set
screw
and
slipping
the
needle
arm
so
that
point
of
needle
is
even
with
looper
opening.
The
rear
side
of
the
needle
must
clear
the
needle
groove
• 005
inch.
31.
Continue
to
rotate
the
handwheel
until
the
needle
is
at
the
end
of
needle
stroke
on
the
right
hand
side,
see
figure
5;
at
this
position
the
point
of
the
needle
must
be
from
5/8
inch
to
11/16
inch
from
the
right
hand
side
of
the
cloth
opening
on
the
presser
foot.
This
setting
is
made
by
loosening
the
clamp
screw
holding
the
needle
ball
in
the
needle
shaft
crank,
and
turning
the
eccentric
ball
until
the
point
of
the
needle
is
set
correctly.
See
figures
2
and
5,
adjusiment
4
and
5.
32.
The
needle
must
be
in
contact
with
the
ne
.
edle
guide
when
the
needle
point
is
from
1/64
to
1/32
inch
from
the
left
hand
side
of
the
cloth
opening
in
the
presser
foot,
figure
6.
WORK
APRON
33.
Adjust
work
apron
so
that
left
hand
feed
platen
is
flush
with
left
hand
side
of
cloth
opening
in
presser
foot.
The
adjustment
is
made
by
loosening
two
hexagon
set
screws
in
up
right
arm
of
the
machine
base,
under
the
work
apron
hold-
ing
the
work
apron
shaft;
slide
the
apron
in
correct
position
and
tighten
the
two
set
screws,
adjustment
9,
figure
5.
From the library of: Superior Sewing Machine & Supply LLC
12
GENERAL
INSTRUCTIONS
34.
Set
needle
over
highest
part
of
rib,
and
adjust
work
apron
to
raise
needle
from
the
needle
guide
1/64".
The
adjustment
is
made
with
the
work
apron
stop
screw.
Adjustment
13,
Figure
5.
When
set
tighten
lock
nut.
35.
Now
set
regulator
for
depth
of
needle
penetration
with
needle
over
the
rib,
and
work
apron
set
so
that
the
needle
is
raised
l/64"
above
needle
guide.
Set
dial
knob
so
that
pointer
is
against
stop
pin
at
12
on
the
dial,
To
make
the
sett
i
ng
loosen
two
set
screws
in
the
dial
knob
and
turn
the
pointer
to
come
in
contact
with
the
left
hand
side
of
the
stop
pin
and
tighten
the
set
screw.
See
Adjustment
8,
Figure
4.
36.
The
above
adjustment
must
be
carefully
made
as
it
limits
the
height
the
rib
can
be
raised
and
will
avoid
blunting
needle
points.
37.
For
General
sewing
the
pointer
will
usually
be
about
No.9
on
the
dial.
FEED
PLATTEN
38.
Set
feed
platten,
figure
5,
so
that
they
will
depress
1/32"
when
in
contact
with
the
bottom
of
presser
foot,
after
adjustment
of
foot
and
apron
has
been
made.
The
setting
is
made
by
adjusting
the
feed
platten
carrier
adjusting
screws,
and
tighten
lock
nuts,
FEED
39.
To
set
depth
of
feed,
figure
6,
adjustmertt
5,
first
turn
hand
wheel
until
needle
point
when
approaching
from
the
left
is
flush
with
left
hand
side
of
cloth
opening
in
presser
foot.
Loosen
the
two
feed
clamp
screws,
and
set
feed
so
that
a
.003"
shim
or
newspaper
will
just
be
clamped
between
the
top
of
feed
plate,
and
the
bottom
of
the
presser
foot.
The
feed
points
must
be
parallel
with
bottom
of
foot,
tighten
the
feed
clamp
screws,
and
check
clearance
h---
tween
feed
and
looper
at
all
positions,
LENGTH
OF
STITCH
40.
The
length
of
stitch
is
adjustable
from
3
stitches
per
inch
to
6
stitches
per
inch,
by
turning
a
numbered
regulator
on
the
main
shaft
in
the
rear
of
the
head,
See
figure
7,
ad-'
justment
6,
and
chart
on
page
12A.
41.
To
make
the
adjustment,
remove
the
rear
head
cover
and
loosen
the
regulator
clamp
screw,
insert
a
screw
driver
in
a
slot
in
the
regulator,
hold
firmly
and
turn
the
hand
wheel
so
the
number
desired
is
opposite
the
notch
milled
into
the
flange
beside
the
regulator,
and
tighten
the
clamp
screw
of
regulator.
42.
As
the
depth
that
the
feed
is
set
below
the
presser
foot
affects
the
length
of
stitches,
the
numbers
on
the
feed
regulator
do
not
indicate
the
stitches
per
inch.
Setting
the
regulator
on
number
9
will
equal
about
3
stitches
per
inch,
and
setting
regulator
on
number
5
will
equal
about
8
stitches
per
inch.
THE
RIB
43.
The
function
of
the
Rib
is
to
pre
sent
the
work
into
the
path
of
the
needle,
and
is
adjustable
relative
to
the
needle
by
turning
the
regulator
dial
lever
"MORE"
or
"LESS"
for
depth
of
needle
penetration,
(
t'
\
I
I
i
I
I
I
I
I
t
i
i
From the library of: Superior Sewing Machine & Supply LLC
I
I
I
I
t
I
t
TO
ADJUST
THE
LENGTH
OF
STITCH:
1
--
Remove
rear
cover.
2
--Loosen
screw
on
stitch-adjusting
ring.
3
--
Fmd
notch
on
cam
by
turning
hand
pulley,
then
stop.
4
--
Insert
screw
driver
in
any
slot
on
the
stitch-adjust-
ing
ring
and
press
down
from
the
notch
on
the
cam
for
a
short
stitch.
5
--
Tighten
screw,
then
try
the
stitch.
6
--
To
select
the
proper
length
repeat
the
operation.
7
--
For
best
results
move
the
stitch
-adjusting
ring
the
amount
as
indicated
and
tighten
when
stamped
number
is
in
line
with
the
notch
on
the
cam.
CA
M
NOTCH IN CAM
12A
STITCH
ADJUSTI
NG
RING
TIGHTENING SCREW
VIEW
FRO
M
REAR
OF M
ACHI
NE
COVER
REMOVED
From the library of: Superior Sewing Machine & Supply LLC
I
I
THREADING
CHART
COLUMBIA CLASS
300
MACHINES
.-
THREAD
FROM
SPOOL
@
-N
Ill
LNEEDLE
From the library of: Superior Sewing Machine & Supply LLC
I
I
I
I
I
I
I
I
13
GENERAL
INSTRUCTIONS
44.
The
R ib
must
be
set
to
be
3/32"
from
the
right
hand
side
of
the
cloth
opening
in
the
presser
foot,
The
adjustment
is
made
by
loosening
the
clamp
screws
of
the
Collars
on
each
end
of
the
rib
shaft,
see
adjustment
10
and
11,
figure
5.
Set
the
rib
in
center
of
the
cloth
open-
ing
and
tighten
clamp
screws.
There
must
be
no
end
play
in
the
rib
shaft,
45.
If
the
machine
is
a
1-to-1
machine
that
is,
the
needle
penetrates
the
body
fabric
of
the
garment
on
every
stitch,
the
rib
must
be
set
so
that
when
the
needle
point
is
over
the
cen-
ter
of
the
rib,
the
needle
point
is
3/32"
back
from
the
nose
of
the
rib,
The
adjustment
is
made
as
follows:
46;
Rotate
hand
wheel
in
clockwise
direction
until
rib
is
at
extreme
end
of
its
stroke
with
nose
of
rib
under
the
needle.
Loosen
clamp
screw
in
crank,
adjustment
14,
figure
5,
and
set
rib
by
hand
so
that
point
of
needle
is
3/32"
back
from
nose
of
rib,
and
tighten
clamp
screw.
LOOPER
4
7.
The
correct
setting
of
the
looper
is
of
greatest
importance.
Refer
to
"Adjusting
and
Timing
Chart".
Page
10.
The
looper
carrier
assembly
consists
of:
Looper
Yoke
-
in
which
are
the
looper
yoke
pin
holes.
Clamp
Screw.
Looper
Ball.
Looper
Carrier
48.
The
looper
carrier
and
looper
yoke
are
set
before
assembling
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
nearest
the
looper
ball,
to
the
side
of
the
looper
ball
nearest
the
looper
yoke
will
be
4
to
4-1/32
(See
Adjusting
Chart,
Figure
1,
Adjustment
2.)
The
looper
hole
must
be
in
line
with
center
of
looper
carrier
as
shown
in
Figure
1.
49.
The
looper
is
mounted
in
the
looper
carrier
assembly;
allow
1/64"
space
between
looper
shoulder
and
end
of
looper
carrier.
(See
Figure
2,
Adjustment
1.)
The
Correct
assembling
of
this
unit
must
be
understood
in
case
for
any
reason
it
is
necessary
to
remove
or
replace
this
assembly.
50,
The
looper
has
means
for
the
following
adjustments,
which,
for
reference
to
the
drawing,
are
numbered
as
follows:
Adjustment
1
51.
Means
for
adjusting
the
looper
in
and
out.
Adjustment
2
52.
Means
for
adjusting
the
looper
position
on
the
right
hand
side,
or
when
the
looper
is
taking
the
loop
from
the
needle.
From the library of: Superior Sewing Machine & Supply LLC
14
GENERAL
INSTRUCTIONS
Adjustment
3
53.
Means
for
adjusting
the
looper
position
on
the
left
hand
side,
or
when
the
needle
is
between
the
prongs
of
the
looper.
54.
Means
for
adjusting
the
position
of
the
looper
from
left
to
right,
or
right
to
left.
55.
Before
setting
the
looper,
the
looper
carrier
assembly
must
be
in
accordance
with
instructions
for
Figure
1,
and
Figure
2,
and
the
needle
setting
must
be
as
described
in
adjust-
ments
4
and
5,
Figures
2
and
5.
ADJUSTING
AND
SETTING
THE
LOOPER
56.
To
secure
the
correct
adjustment
of
the
looper,
the
following
steps
should
be
taken
and
in
the
same
sequence
as
here
given:
57.
The
looper
is
first
adjusted
as
the
looper
is
taking
the
loop
from
the
needle.
58.
The
position
for
the
long
prong
of
the
looper
is
to
have
the
point
of
this
prong
1/16"
to
3/32"
from
the
inner
end
of
the
needle
eye,
and
the
point
of
the
long
prong
should
brush
the
scarf
of
the
needle
;lightly.
59.
To
secure
this
setting,
the
following
steps
and
adjustments
are
taken
and
made:
60.
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.
61.
Loosen
the
looper
ball
joint
shaft
eccentric
bushing
set
screw,
this
will
allow
the
bushing
to
slide
either
to
the
right
or
left,
and
to
rotate
so
that
the
looper
can
be
adjusted
up
or
down,
and
at
the
same
time
the
looper
can
be
moved
to
the
right
or
left.
(See
Figure
3,
Adjustment
3.)
that
shows
that
the
approximate
setting
of
the
eccentric
bushing
is
with
the
looper
shaft
hole
toward
the
needle
end
of
the
head,
and
the
adjusting
slot
at
an
angle,
and
the
slit
into
the
shaft
hole
near
the
bottom.
62.
Slide
the
bushing
until
the
long
prong
of
the
looper
is
3/32"
from
the
inner
end
of
the
needle
eye,
and
tighten
bushing
set
screw.
63.
Loosen
the
looper
yoke
clamp
screw,
see
Adjustment
2,
Figure
2,
and
roll
the
looper
until
the
long
prong
of
the
looper
just
brushes
the
scarf
of
the
needle.
I
I
I
I
I
I
I
From the library of: Superior Sewing Machine & Supply LLC
15
GENERAL
INSTRUCTIONS
64.
Check
to
see
that
po
i
nt
of
the
long
prong
of
the
looper
just
brushes
the
scarf
of
the
needle,
and
is
3/32"
from
the
inner
end
of
the
needle
eye.
See
Figure
5,
65.
Continue
to
rotate
hand
wheel
in
clockw
i
se
direction,
until
the
short
prong
of
the
looper
is
at
nearest
point
when
passing
chaining
finger,
not
exceeding
1/32"
-See
Figure
6,
If
the
short
prong
does
not
clear
the
chain
i
ng
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,
66.
Continue
to
rotate
the
hand
wheel
in
clockwise
direction
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
eccentric
bushing
for
the
looper,
Adjustment
3,
Figure
3,
Move
the
bushing
the
least
amount
possible
so
that
the
short
prong
clears
the
edge
of
the
looper
slot.
6
7.
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,
68.
Continue
to
turn
the
hand
wheel
in
clockwise
direction
until
the
point
of
the
needle
should
enter
between
the
prongs,
but
instead
of
doing
so,
strikes
the
crotch
of
the
looper.
The
follow
i
ng
corrective
steps
are
required:
69.
The
needle
must
enter
between
the
prongs
of
the
looper,
clearing
the
two
prongs
about
an
equal
amount.
70.
In
case
the
needle
should
not
enter
about
midway
of
the
two
prongs
to
correct
this,
loosen
the
eccentric
bushing
clamp
screw,
Figure
3,
and
turn
the
looper
eccentric
bushing
in
Adjustment
3,
Figure
3,
until
the
prongs
of
the
looper
are
about
equal
distance
from
the
needle,
When
this
setting
has
been
made,
tighten
the
bushing
set
screw.
See
Figure
3,
71.
Continue
to
rotate
the
hand
wheel
in
a
clockwise
direction
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
1/16"
to
3/32"
from
the
inner
end
of
eye
of
the
needle,
and
that
the
point
of
the
long
prong
just
brushes
the
scarf
of
the
needle.
In
case
the
above
conditions
do
not
exist,
the
eye
must
be
corrected
--
this
is
done
as
described
in
the
56
to
65
paragraphs
in-
clusive
under
the
heading
"ADJUSTING
AND
SETTING
THE
LOOPER".
Be
sure
to
roll
the
looper
-Adjustment
2,
Figure
2,
Do
not
turn
the
looper
eccentric
bushing,
72.
The
machine,
as
far
as
the
looper
and
needle
are
concerned
is
now
ready
to
sew.
Different
materials
or
different
threads
may
cause
a
slightly
variation
from
the
above
adjust-
ments,
however,
there
adjustments
will
give
the
best
results
when
padding
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"
-
Figure
6,
instead
of
3/32",
without
changing
the
looper
position
by
re-adjusting
the
needle
ball
stud,
Adjustment
4,
Figure
2.
From the library of: Superior Sewing Machine & Supply LLC
16
GENERAL
INSTRUCTIONS
RETAINER
OR
CL01H
CLAMP
73,
The
cloth
retainer
located
in
the
cloth
opening
of
the
presser
foot
must
at
all
times
be
adjusted
as
close
to
the
needles
as
possible,
and
set
relative
to
the
ridge
forming
disc
to
firmly
hold
the
work
onto
the
disc
while
the
needle
is
penetrating
the
material.
If
the
work
is
carried
along
with
the
needle,
no
loop
will
for.m,
resulting
in
missed
stitches,
See
Figure
6,
Adjustment
7,
To
adjust
the
retainer
loosen
set
screw
in
foot
and
turn
the
cloth
retainer
eccentric
bushing
and
turn
bushing
for
setting
retainer
to
the
needle,
and
slide
to
the
right
or
left
for
setting
retainer
to
the
rib,
and
tighten
set
screw
in
the
presser
foot,
c
From the library of: Superior Sewing Machine & Supply LLC
J
I
I
J
I
t
t
COLUMBIA
MODEL
300-5
-
GENERAL
UTILITY
MACIDNE
THE
MODEL
300-5
17
The
Model
300-5
is
a
general
utility
Blind
Stitch
machine
for
general
alteration
work,
and
for
felling
trouser
bottoms,
bottom
of
coats,
dress
hems,
etc.
It
is
an
excellent
machine
for
alteration
rooms,
manufacturers,
and
for
cleaners
and
dyers.
This
model
is
equipped
to
sew
the
base
layer
or
body
fabric
on
every
stitch,
and
is
equipped
with
a
work
plate
for
sewing
flat
work,
and
the
work
plate
can
be
swung
out
of
the
way
for
sewing
cylindrical
work
such
as
pants
bottoms
and
sleeves.
The
machine
is
equipped
with
a
knee
lift.
INSTRUCTIONS
FOR
ORDERING
PARTS
The
parts
have
been
broken
up
into
groups,
and
these
groups
are
shown
below.
Turn
to
the
plate
showing
the
group
in
which
the
part
to
be
ordered
is
located,
find
the
part,
and
order
by
part
number.
PLATE
A
1
4
5
6
8
15
16
17
24
26
Following
is
list
of
plates
and
groups.
PAGE
36
38
44
46
48
52
66
68
70
84
88
DESCRIPTION
OF
GROUP
Sundry
Parts
-
Head
and
Arm.
Main
Shaft
Group.
Looper
Drive
Group.
Needle
Drive
Group.
"Clock
Dial"
Stitch
Depth
Adjustment
Group.
Presser
Foot
Group.
Work
Table
and
Knee
Li
ft
Group.
Wo
:
ck
Apron
Group.
Feed
Platten
Group.
Rib
Shaft
Group.
Feed
Points.
From the library of: Superior Sewing Machine & Supply LLC
18
COLUMBIA
MODEL
300-5
ADDITIONAL
ADJUSTMENTS
FOR
MODEL
300-5
Refer
to
timing
chart,
page
10.
STITCH
LENGTH
Generally
set
3
stitches
per
i
nch,
#9
on
stitch
regulator,
Adjustment
6,
Figure
7.
RIB
Set
rib
in
center
of
cloth
opening
in
the
presser
foot,
Adjustment
9,
Figure
5.
CLOTH
RETAINER
Rotate
hand
wheel
clockwise
unt
il
the
rib
is
at
the
end
of
its
oscillation,
and
under
the
needle.
Adjust
the
cloth
retainer
to
just
clear
the
needle,
and
center
the
cloth
retainer
to
the
rib.
To
check
this
setting,
insert
a
strip
of
paper
on
each
side
of
the
rib,
under
the
retainer;
the
retainer
must
clamp
both
strips
of
the
paper.
See
Adjustment
7,
Figure
6.
e
c
From the library of: Superior Sewing Machine & Supply LLC
This manual suits for next models
10
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