Seiko CM3-11, CM3-21, CM3-L21 User Manual

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OPERATING

AND

PARTS

BElKO

.

BLIIDSTITCH

INSTRUCTIONS

BOOK

MACHINE

SERIES

CM3-L21

SEIKO

CM3-21

SEMI

S-EWING

TOKYO,

CM3-11

SELF-OILER

MACHINE CO., LTD.

JAPAN

STANDARD

#10

Fine knit rayon

:r,

If who please write

NEEDLES

you

have any difficulty, do not hesitate

sold

you

this machine.

or

phone

us

If

unable to obtain satisfaction,

direct:-------------

SIZE

#15 #20 #25 #30

#35 #40

to

contact dealer

Fine knit wear

Fine knit jersey

Dresses and light fabrics

For

sportswear

For

heavy, hard material and coats

For

extra hard material

• SEIKO SEWING MACHINE CO., LTD.

11-3,

1-chome,

__

Phone:872-6171/6

Cable

Address: SEIKOSEWMCO

lmado,

Taito-ku,

Tokyo,

TOKYO

Japan

CM3-21 CM3-11

SERIES: SERIES:

CM3-L21

CM3-P11

SEIKO

SERIES:

BLINDSTITCH CM3-21L CM3-11L CM3-L21L

CM3-P11L

CM3-21M CM3-11M CM3-L21M

CM3-P11M

MACHINE

CM3-21H CM3-11H CM3-L21H

CM3-P11H

MODELS

CM3-21K(WITH CM3-11K<NON CM3-L21K

SKIP

<SKIP

SEMI-SELF

CM3-P11K

<PORTABLE)

SKIP

STITCH)

STITCH

OILER)

&

INDEX

INFORMATION

PAGE

Needle Sizes .................................. Inside Cover

Models Mounting Oi I ing Knee

in

our Line.......................... Inside Cover

on

Stand ....................................... .

Instructions ........................................ 1

Lifter Adjustment.................................. 2

Threading Chart ............................................ 2

Rib

Adjusting

to Needle.................................. 3

Stitch Ratio Lever............................................ 3

Testing and Changing Needle........................

How

to Sew.................................................... 5

·4

Stitching ........................................................ 5

Set

Rib

Shaft and

Rib

Connection............ 6 & 7

Needle Stroke ........................................ 6 & 7

Length of Stitch........................................

Adjusting

Looper

.................................... 8 & 9

6 & 7

PARTS

Rib

~--·····

.............................................. 1 0 &

Feed

Frame ........................................ 1 0 &

Main Frame ........................................ 12 &

PAGE

11

13

Main Shaft .................................................... 13

Front

Plates ..................................................

Presserfoot Assembly ....................................

Looper Needle Regulating Rocker Knee

CM3-

Rod

Assembly...................................... 16

Drive

Group........................................ 16

Dial

Group ...........................

Assembly......................................

~---·····

Lifter Assembly......................................

L21

Self Oiler........................... 19 & 20

11

15

17 17 18

MOUNTING MACHINE

1. Fasten machine to table

2.

screws

a.

b.

c.

The from direction wheel

evenly, turning each a little

When

an

individual motor and clutch

is

employed, it motor be rated RPM.

On

all outside diameter tended for alteration, diameter

When the machine table, a sible, should

ING

The

ed for any installation otherwise specified.

handwheel's direction of rotation

the operator.

pulley,

pulley.

4"

pulley

when

using

be mounted

THE

BELT.

maximum

when

as

looking

shown

using

felt pad. Tighten

at

a time.

is

recommended that the

at

I!J

HP

standard

pulley.

is

should

such

machine speed recommend-

It

by

and 1725/1750

models,

use

mounted

stands, the machine

TO

is

rotates

at

the arrow.

use On models a

21f2"

outside

on

be used. If

AVOID

3000

the face of the

a power

CROSS-

RPM,

is

in a clockwise

a Jlf2"

3. Either V-belting or round leather belting

be used. over-heating and freezing of bearing wheel.

Excessive

tension

of

belt

will

at

unit

in-

pos-

unless

away

may cause hand-

CAUTION:

BEFORE IN REFER

1. Place a

chart

2.

In

few

drops of

All

moving parts

production use, the machine should be oiled twice daily

OILING

INSTRUCTIONS

OPERATING

ACCORDANCE

TO

OIL

CHART.

oil

at

all points

MUST

be oiled.

MACHINE,

WITH

INSTRUCTIONS.

shown

LUBRICATE

on the oiling

MODEL

CM3-L21

1

KNEE

To

adjust

(B)

and bring

fortable This

adjustment

spring. To

adjust

Col.lar

Screws

blade of enough operator, then tighten Collar

"S"

Hook

Frame

and

Nut

(H) untii"S" Hold

Screw

LIFTER ADJUSTMENT

Knee

lifter

(A),

Knee

Lifter into position most

for

operator. Tighten

may

require readjusting tension

tension

screw

until

(E)

and

Hook

of spring

(C)

and

wind

driver

in

Knee

Lifter

must

always

Lift

Arm

(F).

turn

Adjusting

is

FREE

of

in

place and tighten

Collar

(A)

have

To

Feed

loosen

Screws

on

spring

slots

swings

Screws

do

this,

Screw

Frame

Lift

Knee

slack

Lock

Arm

(B)

securely.

Lifter,

by

placing side

(D).

Wind tight

towards the

securely.

between

first

loosen

(G)

left or right

and

Nut

Screws

loosen

Lift

(H).

com-

Feed

Lock

Arm.

1.

2.

3.

THREADING

1.

To

thread needle

a.

Swing

b.

Depress

with

c.

Hold

finger and thumb

d.

End not feather edge.

Use

any

type thread

This

includes

The

thread between guide

· entering Leave

two

(D)

...

from

thread about 2 to 3

NEEDLE

at

work

plate out of

cylinder out of

knee

lifter

thread between

of thread

THREADING CHART

which

is

suitable for the fabric

mercerized, 00,

is

passed through rear thread guide

tension

then

down

the underside of needle

point

(F)

way way

index

must

be stub

silk

and synthetic threads.

discs

(B)

through

through needle clamp

inches

past needle

(C)

hole

being·

·sewn.

(A}

then

slides

through front thread

hole

(E)

..•

(F).

hole.

RIGHT

Up

like

and

this

2

ADJUSTING

RIB

TO

NEEDLE

THE MACHINE SHOULD NEEDLE

1.

2.

3.

4. If

5.

6.

7.

8.

9.

10.

SmiNG

Press

knee

lifter to depress feed frame.

Turn

hand

presser foot

Slowly

NEEDLE

rib

"LESS" If

rib

just When To

test

wheel

shoe

release

(Fig.

2).

is

pressing

until

rib

is

away

from

touches needle.

needle

just

machine, of material, place catches once, ready to

Keep

dialing.

on

silk

or

On

heavy

You

are

then

work.

"MORE'' or

any

thin

goods, it

now

TO

PREVENT

CLOCKWISE

(Fig. 1 ).

knee

lifter.

up

just

touches needle.

needle

touches

when

in

machine

does not catch

goods.

should

ready to thread

instructions.

IE

CHECKED TO

DAMAGE TO

until

The

rib

against needle

(Fig.

4),

turn

rib

(Fig.

2),

ratio

is

set 2 to 1

and

turn

"LESS

..

until

catch

oR

each

machine.

INSURE

NEEDLES.

eye of needle

should

(Fig.

dial

toward

machine

JUST

3),

turn

is

set to test.

ratio-take machine on

above

by

hand.

stroke,

results

of needle.

Refer

CORRECT

is

at

slot

in

TOUCH

dial

..

MORE"

toward

sing!.§

If

machihe

THE

until

layer

machine

are obtained

to 'threading ·

is

FIG.

4

IMPORTANT:

Place a piece of thin sample material ratio on

needle catches on one stroke

ON the rib (Fig. 1 ) • At this point, the sating Skip Stitch Screw (Fig. should be

S times the thickness of average letterhead paper.> This

justment

(A) so

driver and secure Lock Nut.

Once this Safety Screw adjust Safety Screw and screwdriver PREVENT TOO STRIKE

2-to-

1. Turn hand wheel clockwise by hand so

THE

SKIP

STROKE,

.018

(C).

Is

made by loosening Lock Nut

gap

at

(C)

Is

done, a similar adjustment on Feed Frame Limit

(E)

Main Frame of machine

and

secure Lock Nut. THIS ADJUSTMENT

OPERATOR

HIGH

WITH "MORE/LESS"

RIB

AND

stop when the eye of the needle

Un

the absence of a gauge, .018

is

.018. Keep screw

should be made. Loosen

(E)

so

FROM

BREAK.

and

5,

that

is

.0

MISTAKENLY

in

machine. Set stitch

skips a stitch

gap

A>

gap

(G) between Screw

18. Hold Screw

DIAL

on

between the Compen-

and the Push

(f)

, adjusting screw

in

place with screw-

ADJUSTING

CAUSING

second stroke.

Rod

is

Lock

Nut (D),

in

place with

NEEDLE

that

is

(B)

about

ad-

(E)

IS

TO

RIB

TO

at

FIG.

3

FIG. S

TESTING

'NEEDLE:

IMPORTANT:

no

bur or it

nail

across point.

firmly

on

CHANGING

TO

REMOVE

1.

Loosen Clamp Needle

2.

Hold finger, to the DO

INSERTING

1.

Place and With shank Clamp

Needle

of

2.

With

Needle Clamp

Needle holding as right

3.

Hold and then Lever firmly.

4.

EYE when

First

is

not bent.

needle guide

If

NEEDLE

screw

(A)

(B)

is

loosened

is

free.

(Fig.

Needle

left

NOT

with

remove

(Fig. 1 ).

FORCE.

NEW

good

hold

high

index

new

in

place

tilting

motion

of needle to right

(B)

and Needle Lever.

left

index

is

setting

together

as

possible

hand,

tighten

Needle

push

(DO

of Needle

Needle

at

finger,

Needle NOT

Lever

test needle to

To

check

needle

by

Fig.

about

from

1)

left

moving

It

should

6 •

is

bent, it

(F)

21f2

Needle

hand

come

away

NEEDLE

needle

finger and

and

point

should

in

with

in· with

loosen

FORCE)

groove of presserfoot

right

of right thumb

Lever

thumb

Lever

together

Needle

screw

all

(C)

left

with

(D)

screw

the

be

is

Lever

.hand,

right hand.

(A)

(Fig.

and

at

make

sure

for

bur,

rub

will

turns

until

Lever

thumb and

from

out

effortlessly.

index

finger

(Fig.

in

between Needle

(C)

and

into

(Fig.

making

Groove.

draw needle

Then

with

screw

5)

with

left

(A)

a quarter

way

up

the Needle

secure

point

its

highest point.

screw

(E)

there

finger-

not rest

Needle

(C)

and

index

you

and

(Fig.

2\.

3),

tirt

groove

4),

bring

sure

While

up

with

driver.

thumb

turn,

(A)

(Fig.

is

FIG. 1

~·--··-·-··-·.,._.,-~

FIG. 3

6)

\.

\

\.

\

~

\\

\\\

~

\

......

\

~

~~~_

·-v.•, \

......

\

~

\

4

HOW

1.

Turn

hand

reaches

2. With

hem machine

foot.

3.

Place

edge of gauge

4. Start

hem material ON OR

SEWING.

5.

To

remove high AWAY thread.

IMPORTANT-DO

AND

FORTH

wheel

high

hands

firmly.

parallel

(D)

edge of

sewing.

lightly,

parallel

GAUGE

...

point.

FROM

OR

START SEWING

1.

On

thin

goods or

should

machine Fig.

2.

For as

3.

Do hold

4.

To

NEEDLE

GARMENT.

be set almost

and

2.

(F).

heavier goods,

necessary.

not

pull

material

remove

IS

TO

slowly

point

(A).

12

inches

or

Depress

but

Depress

IT

material

knee

with,

hem

in

(C).

IMPORTANT:

firmly to gauge

ONLY

back,

finished

AT

make

YOU,

NOT

WILL

ribbon

should

HIGH

...

sure

knee

TUG

UNRAVEL

at

bring

to

just

SEW

clockwise

so

lifter,

and

slot

of

against gauge,

NOT

needle

lifter and

straight

MATERIAL

cloth extreme right side of

obtain

cloth

help

hold

work,

POINT

until

needle

apart

(Fig.

1)

pface

hem

up

under presser

shoe

(B)

and

Keep

edge of

by

KEEPING

ON

NEEDLE

is

again

pull

back

to break

BACK

THE

STITCH.

guide

Fig.

results

guide to the left

feeding, do not

firm

but

MAKE

FREE

shown

lightly.

SURE

hold

in

at

keep

EYES.

at

work

l.(C).

in

OF

PROPER

FIG.

1

STITCHING (Fig. 2J

TENSION

If

material

If

thread tension, hesitate to

On

thin

heavier goods, a tighter IMPORT

puckers,

is

loose,

discs

turn

goods, a

ANT:

chine

loosen

then

tension

light

l)nlike

tension.

make

sure

tighten accordingly.

nut

several

tension

a regular

requires

thread

times is

is

necessary.

machine,

very

little tension.

is

between

Do

as

needed.

required.

this

not

On

ma-

F • Proper stitching.

UNRAVELING STITCH

To

unravel WISE until

WISE

Defress

wil

unravel.

To

unravel stitching backwards,

the stitching,

to

high

point

of

thread

is

off

looper.

to threading position.

knee

lifter and

stitch

finished,

NOT

on

finished

break

FROM

remove

turn

hand

needle. Continue

Then

straight thread

DIRECTION

wheel

COU

NTERCLOCK-

garment

garment, start

OF

CLOCKclockwise

...

thread

where

and

unravel

SEWING.

I.

If

catching each time on light

f'obric, turn dial to it looks like J .

G.

Material

off. Bring gouge over

"LESS" until

o little

running

to

left.

J.

H.

Gouge too for left. Move gouge

over to right.

Catches on thin fabric every other time. (Provided needle

is

good.)

to

5