Brother CB3-B913 Manuel utilisateur

INSTRUCTION

MANUAL

FOR

BROTHER

CB3-B913

Chain

Stitch

Buttoning

Machine

BROTHER

INDUSTRIES,

LTD.

NAGOYA,

JAPAN

From the library of: Superior Sewing Machine & Supply LLC

©FEATURES

*Model CB3-B913 is

idea

chine for

button

knitw

ork.

dre

shirts.

workin

g c

lothe

s, l

adie

gar

ment

and

ildren's clothing.

number

titche

n be easily

changed to

with

simple le

ver

ope

ration

the

machin

can

be u

in a wide

ran

butt

wing

work.

button

lamp

I S

aut

matically

rai

sed

and

wered

for

bett

er s

efficie

* A

unique

brake

minimi

zes

stopping

shock

and

ure

s a quiet stop.

Attachment

may

nsta

ed for

easy

button

wing

etc.

(SPECIFICATIONS )

........

....

.....

...

.....

......

( INSTALLING)

......

.··

........

··

......

....

......

[I].

Motor

se ......

....

··..

........

.....................

·.. ···

........

Mot

Pull

......

.............

..·

......

..........

··.. ··

......

........

Sett

ing up

the

chine

....

.....

....................................

Ins

ing

Button

Tra

..............

........

...........

(

LUBRICATION

AND

TRIAL

OPERATION

....

[I]

. Oiling

........

.... .....·

.....

........

...........

........

.···.. ··

........

[2]

Trial

Operati

......

··

............

.......

.....................

....... 2

(CORRECT OPERATION )

...

.................

.....

. Longitudinal

and

Tran

sve

l Feed

sitioning ·

..........

. 3

Button In

rti

··

........

········.. ····

.......

··

....

·..··

....

·... 4

Chang

ing the Number

Stitch

............

.................

Needle

Thr

ead ......·

......

.·

........

.......·

..........

.....

··

{

·~J

-i~

""'

Needle Ins

lling .

......

...

..................................

····

····· 4

[Q].

hreading

.....

··..

.................

...·

...........

···

....

......

··... ... 4

[1]

Thread

T ension

........

..............

........

···

.........

·.. ·

·... 5

Adju

ing ·

eed

Thre

Length from Needle

after

Sew

ing ··

.......

·····

......

·...···

··

·...···

.....

·...·..······ 5

Adjusting

Button

Cla

essu

...

.......

.....

......

(STANDARD ADJUSTMENTS)

............

[D. Needle

Bar

Hei

ght

Adjus

tment

.....

.......

..····

·· ..

. 5

Needle and Looper

Timing

Adjus

tment

···

.......

..........

Needle

Clea

ran

Adjus

......

···.......···

......

....

·..... 6

@ . Needle

Guard

Adjustmen

................................

·..·...... 6

Thread

Looper

Timing

Adjus

tment

........................

... 6

[Q].

b-T

ension

Adjustme

.........................................

... 6

[1]

. Button C

lamp

Lift

Adjustme

......

..........

.........

(TROUBLESHOOTING)

....

.·

···

··.

.....

From the library of: Superior Sewing Machine & Supply LLC

(SPECIFICATIONS J

Sub-clas

s - 1 I

-2

Stitc

h type Single ch

ain

stitch, single needle,

single

thread

(JIS C

ll)

Speed 1,500 r

Button

cla

lift S

tandard

mm,

Maximum

Motor

4P,

0 W mo

tor

ingle-or

thr

ee-ph

Sewable

button

size

8 to

mm in

tside

diam

eter

2.5

6.5 mm in b

utton

hole

spac

ing.

Numbe

r of

itc

I 6, 12,

Nee

dle

bar

stro.ke

Belt

diam

ter

6.5

¢ round

leat

belt

Fla

t bu

tton

e @

tit

Form

Nee

dle TQX 1 for Aat button s

ewing

X 7 for

shank

butt

se\\'ing

Sha

button

(INSTALLINGJ

[I]

Motor

Base

case

using a

ercial

motor,

select one

ose *In

case

using a commercial t

le. dr

ill

hol

as shown below.

shown below.

Powe

requirement

Motor

Single-ph

ase

4P,

250

W mot

Three

pha

4P,

250

W m

oto

Motor

Pulley

ect

motor

rom

the

ble below

which s

ts the power

fre

ency

your

area.

Machi

tor pull

frequen

speed Outs

e di

ameter

Pulley

50 Hz 1

rpm

N-75 pulley

60Hz

1,500 rpm 65

N-65 pulley

Setting

the

Machine

ace

the

machine

head

on the t

able

, and

faste

n the head with four h

exagona

bolt

s 0 .

washe

was

her

s 0

and

nut

s 0 .

- I -

Lf)

-,.

U')

the

head

clamp

bolt 0 .

ope

e bed

cover 0 .tilt

the

chine h

the

left, and

e chain (l) to

e c

lut

actuat

ing l

ever

From the library of: Superior Sewing Machine & Supply LLC

- Y

Loo

the

two

exa

nal

lts 0 from

the

le le

, di

sco

one

end

e su

pport

aft

4Ji)

, slide

e pedal

and

pedal st

pers

nto

the shaft. and tig

hten

the p

eda

stop·

pers

with

rew

dju

e pedal position

with

e suppo

haft

4Ji)

the

forward·backward

directions,

and

with

the

ped<

toppe

in s

direction

.ma

kin

g s

ure

that

the chain wi

act

neither

e m

oto

r pulley nor

ob·

ong

hole in

tab

le.

Installing

the

Button

Tray

Connect the hook

til

at the lo

r end of

the

chain to

e p

eda

l,and

adj

the c

hain

engt

with

e o

41)

ake

o b

utton

egs

0 f

rom

parts

box,

them into

e mo

unting

oles

the

bed,

and

fas

ten

them

with

the

ews

Fit

e bu

tton

tray

the

butt

on tr

egs

O. and fas

it wi

th th

rew

s 0 .

(LUBRICATION

AND

TRIAL

OPERATION)

Oiling

Be sure

pour

a dr

two

of o

ach

oiling

indi

cated

arrows

fore

artin

g yo

wing m

hine.

Trial

Operation

Switch

the

owe

r on

tart

the m

oto

r, which dri ves

the

pulley in

the

rrow

rec

tion.

*Be

e to ch

e op

erat

ing d

tion

e m

hine.

chine sta

s running when

the

pedal is

step

ped on.

Release the p

eda

l quickl y.

The machine

sews

the

pre

number

tch

ops.

esser f

automatic

y ri

ses

. .

epea

t steps 2

thr

ough 5 a f

times.

- 2 -

From the library of: Superior Sewing Machine & Supply LLC

(CORRECT OPERATION)

[

[].

Longitudinal

and

ansversal

Feed

Positioning.

Button hole spacing

Two-hole

button

) Depress the l

ever

0 and align the

arr

ow on the lever

with the ©

2. Four-hole

buttons

(1) Depress the lever 0 and move

e a

ow on the lever

to the position representing the bu

on hole sp

ing.

Button

holes spaced 4.0

6.5

apart

Be sure to check the hole sp

ing of the but

ton

s to

be sewn on

a fabric.

the bu

tto

n hol

are

2.5 to 4.0 mm a

part

from

eac

h other. p

ceed as men·

tioned in steps 1 and 2. If the

butt

on holes

e sp

ace

4.0 to

5 mm a

par

t from

eac

her.

ke steps 1, 2

and 3.

(2) Loosen the nut

, and

set

the pointer $ to the posi-

tion representing the bu

tto

n hole sp

ing.

) Loosen the

nut

, and set the pointer 8 to the pos

ion

esenting the button hole spacing.

(1) Loosen the he

xago

nal bolt 0 . remove the feed pl

e A

tak

e the feed pl

ate

8 out of the pa

s box,

and

install

tem·

pora

ly with the he

xag

onal bolt.

) Loosen the

rew 0 . push the adjusting

ate 0 a

the

and retigh

n the set screw 0 .

) Set the lever and the pointer to the positions rep

senting

the button hole sp

ing in the manner mentioned in Para·

gra

phs 1 and 2.

(

With the power switch

OFF

, open the

rig

bed

cov

er, de·

ss the pedal,

turn

the machine pulley by hand and

see

that the needle wi

not

t the edges of the opening in the

feed

ate.

) Aft

the feed p

lat

e 8 h

been co

ectly p

itioned, tighten

the h

exago

nal bo

0 sec

- 3 -

From the library of: Superior Sewing Machine & Supply LLC

IZJ.

Button Insertion

1. Two-hole buttons.

Four-hole buttons.

Sewing

same-sized buttons

continually.

•

(1) When the cam plate 0 is pushed, the button clamp 8 opens. Insert a button into the button clamp,

(2)

Insert a button into the clamp in the correct direction as shown above, and re- and make sure

that

the button has been

lease the cam plate

securely gripped. With the button grip-

ped by the clamp, loosen the set screw

•.

pull the adjusting plate e toward

yourself until there is a clearance of

about

0.5

1.0

between the adjust-

ing plate e and the screw

•.

Then tighten the set screw

@).

Changing the Number of Stitches.

Turn the power switch OFF

the normal machine stop position, open the left bed cover, and depress the pedal

you select

a desired number of stitches

follows.

Needle and Thread

Needle Size of thread Kind of thread

# 9 #

100

;1:80

Cotton, silk

#11 #

#60

#14

#40

#16

#30

#18

#24

#20 #

;!:

Select a needle and thread by referring

to the above table.

Use a TQX 1 needle for sewing flat

buttons on ; a TQX 7 needle for

shank buttons.

Needle Installing

1. 8 stitches

The figure

left shows the case of 8 stitches.

16 stitches

Pull the stitch select knob 0 toward yourself and

move it

the arrow direction.

stitches

(1) Pull the stitch select knob 0 toward yourself

and move it in the arrow direction.

(2)

Loosen the hexagonal bolt

fj,

push down the

lever

the arrow direction, and retighten

the hexagonal bolt

fj.

1§1.

Threading

Pull the thread whtJe pressmg the button.

Hold the needle with its long groove

side 0 facing

your direction,

in-

sert the needle into the needle

bar

hole all the way, and clamp

with

the screw 8

-4-

From the library of: Superior Sewing Machine & Supply LLC

[ZJ

Thread

Tension

MorP.

tension

<.____>L

ess tension

~a~.

Adjusting

Needle

Thread

Length

from

Needle

Eye

after

Sewing

Adju

thread

tension with the main

adju

remaining

thread

len

gth

tension

rew 0

and

sub·tension sc

rew

the

needle

eye

. loosen the l

eve

adjuster

f).

screw

d move the

thread

take·

lever

as ap

propr

iate.

e st

andar

length is from

60 mm.

(

sTANDARD

ADJUSTMENTS

)

[[]

Needle

Bar

Height

Adjustment

·-

Reference line

for

TQx 1 needle

ference line

x 7 needle

Adjusting

the

Button

Clamp

Pressure

Loosen the

adjust

screw

0 ,

and

turn

the

adjusting

scr

adju

the

utt

on cl

amp

essure

unt

il it is

re·

duc

that

can

just

hold

the

work

when the

work

is lightly pulle

After

the

stment. l

ock

adju

ting

rew 8 with

the

adjusting

0 .

(I)

When the needle fa

the low

t position.

the

high

est

e four

nee

dle

bar

reference lin

will

flu

sh with

the

bott

om end of the needle bar lower bushing 0 .

) Rem

e the face plate, l

sen

e n

dle

bar

lder

scr

..and

rai

or l

ower

the

needle

app

o·

priate.

l?<

X 7

edle is u

the

cond lowe

the

refere

nce

lines

flu

sh with

e same.

12]

Needle

and

Looper

Timing

Adjustment

(I)

When

second

hig

st of the ref

ere

lines is

flu

the bott

end

e needle b

ower

bushing

e needle ri

ses

from its l

owes

t pos

iti

the

tip

of the

ooper

will be in line wi

the

le.

mIn ca

x 7 n

dle is u

the

ue when

e lowe

refe

nce

match

the b

the

needle b

ower

bushing.

- 5 -

(2)

Open the lo

ver, l

sen the

rew 0 . and

the looper s

until th

tip

the

looper is

line

with

the

center

of the needle.

From the library of: Superior Sewing Machine & Supply LLC

Needle Clearance

Adjustment

Loosen the set collar screw 0 and move

the looper to adjust the clearance be-

tween the needle arid the tip of the looper

0.03

0.08

mm when the tip of the

looper is

line with the center of the

needle.

!§].

Sub-Tension Adjustment

Reference line

Check to see

that

the reference line

on the needle

bar

drive lever 0

matches the reference line on the

needle

bar

drive lever shaft

f).

these reference lines

are

unaligned,

make an adjustment by loosening the

hexagonal bolts 8 and

Needle Guard Adjustment

Loosen the screw

and move the needle

guard 0 to adjust the clearance between

the needle and the needle guard 0 to

about

0.1

mm.

To decrease

~-Thread

Looper Timing

Adjustment

Loosen the screw

and align the

reference line on the groove cam 8

with

that

on the looper shaft

f).

Loosen the screw

and align the

reference line on the thread looper

triangle cam8 with

that

on the looper

shaft

f).

IZJ.

Button Clamp Lifter

Adjustment

----~-=--a.:~~

·-~~

Turn

the pulley by hand to raise the When raising

lowering the button

needle

bar

until the top of the needle clamp by means of the pedal.

bar

0 is

mm above the top

Remove the screw

move it into the

end of the needle

bar

upper bushing hole

f),

and retighten the screw

this time, the tension disc must

begin to float. Loosen the screw 8

and turn the sub-tension stud G until

the above-mentioned timing

ob-

tained.

*In

case a TQX 7 needle is used, the

tension disc must begin floating when

the top of the needle

bar

mm above the top of the needle

bar

upper bushing.

-6-

Hook the chain 8 into the hole

the

button clamp connecting rod

*The

pedal and chain

are

optional.

From the library of: Superior Sewing Machine & Supply LLC

{

TROUBLES~OOTIN

G )

Trouble I I Cause I I Check point I I Remedy I

Page

Button ins

erted

Inse

button

its

imprope

Button

dir

ection. h

oles

the

cor

direc

on.

Longitudinal

feed

lever

Longitudinal

ed l

ever

Adju

s t lon g

itudin

a l

and

int

ition

eed

leve

and

ter

improperly.

and pointer positions.

utt

o n ho le sp

aci

Needle breaks.

Wrong

thread loop

Thr

ead

oper

timing. Adjust

thread

loop

timing. timing.

Wrong

dle

d Needle and looper Adju

edle

ooper

timing. timing. looper timing.

g r

·eat

clearance

Adjust

c le

aran

between

dle

and

Needle

clearanc

betwe

e n n

dle

per.

oope

Needle

bar

hei

ght

Needle

bar

height. Adjust needle bar

incorrect. height.

Stitches skip.

g r

t a cle

aranc

e Clearance between

tween

le a

needle

and

needle guard. Adju

needle

gua

rd.

guar·d.

Remaining

thread

Remaining thread Adjust remaining

length too short. length. t

d len

gth

Sub-tension di

floats

Ten

sion di

float. Adjust s

ub-

nsion disc

improperl

float.

Stitch

loose.

Sub

-tension too weak. Sub-tension tensio

Adju

sub-tension

tension.

Needle installed

tall

with

its

Needle

dire

ction. l

g g r·

oove

facin

inc

orrect

fron

Sub-tension di

oat

Tension disc

flo

Adju

sub-tension.

timing

ong. timing.

Thr

ead breaks.

Needle too thin for Needle

and

cl.

efer

ructions

thread. for needle

and

thr

ead

From the library of: Superior Sewing Machine & Supply LLC

~--·

•.

118-913

192913-1-02

Printed in Japan

From the library of: Superior Sewing Machine & Supply LLC

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