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BH780

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INSTRUCTION AND PARTS LIST

C€

[/411®

~~JK119~Jl~f]a]

~

KAULIN

MFG.CO

.•

LTD.

From the library of: Superior Sewing Machine & Supply LLC

TO ENSURE SAFE USE

OF

YOUR SEWING MACHINE

For the sewing machine, automatic machine and ancillary devices (hereinafter collectively referred

to

as

"machine"), it is inevitable to conduct sewing work near moving parts of the machine. This means that there

is always a possibility

of

unintentionally coming in contact with the moving par

ts

. Operators who actually

operate the machine and maintenance personn

el

who are involved in maintenance and re air of the

machine are strongly recommended

to

carefully read

to

fu

ll

y understand the following Sa

fety

p

rec

auti

ons

before using/maintaining the machine. The content

of

theI

Safet

y pre

ca

ut

io

ns Iincludes items which are not

contained in the specifications of your product.

The ri

sk

indications are classified into the fo

ll

owing three different categori

es

to help understand the meaning

of

the labels. Be sure to fu

ll

y understand the following description and strictly observe the instructions.

(I ) Explanati

on

of risk levels

~

DANGER:

This indication isgiven wherethere is

an

immediate danger ofdeath

or

serous injury

if

the person

in

charge

or

any third

party mishandles the machi

ne

or

does not avoid the dangerous situation when operating

or

maintaining the machine.

~

WARNING:

Th

is indication isgiven where there isa potentiality for death

or

serious injury

if

the person in charge

or

any third

party mishandles the machine

or

does not avoid the dangerous situati

on

when operating

or

ma

intaining themachine.

~

CAUTION:

This indication Is given where thereIs adanger

of

medium to minor injury

if

the person in charge

or

any third party

mishandles the machine

or

does notavoid the dangerous situation when operating

or

maintaining themachine.

&

Items

requ

iri

ng

speci

al

att

ention

(II)

E

xp

l

anation

of

pi

ctorial

warning

indications

and

warning

labels

~

There is a

risk

of

injury

~

T

here

is a r

isk

of

if

contacting

a

mov

ing e

nt

an

gle

me

nt

in

the

belt

sec

t

ion

. r

esu

lt

in

g in

injur

y.

Picto

r

ia

l

it

There

is

a

risk

of

The

co

rr

ect

d

ir

ec

ti

on

is

warni

ng

elect

rical s

ho

ck

if

~

ind

icated.

indicat

i

on

contacti

ng a

hi

gh-voltage

secti

on. In

di

cat

ion

& There

is

a ri

sk

of a burn label @

Co

nn

ecti

on

of

a

eart

h

if

co

nt

a

ct

ing a high-

cable

is

in

dica

ted.

tempera

tur

e

sectio

n.

&

~

0

~·

*

~~~

~f)

&

~

1

~~

LL~~

~

~~

-

1

~~

2[

·¥

I

~

I

@

~~

~

J

~o

....

t t

2

[

·

¥

1

~~

~

N

~~

I

f)

0

0 · There is the

poss

i

bility

that

slight

to

serious

injury

or

de

ath may be caused.

• There is

the

possibility

that

injury

may becaused

by

touching

movi

ng part.

f)

·

To

perform sewing work with safetyguard.

•

To

perform sewing work with safetycover.

• To perform sewing work with safety protection device.

0 ·Be

sure

to

turn

the

power

OF

F beforecarrying

out

"machine-head threading," "needle changing," "

bobbin

changing"

or

"

oiling

and cleaning."

From the library of: Superior Sewing Machine & Supply LLC

SAFETY PRECAUTIONS

A DANGER

~

Accident

means

;to

cause-

- ,

1 personal

injury

or

death

or

1 damage

to

property."

~--------

------

--~

1. When

it

is necessary

to

open

the

control box containing electrical parts, be sure

to

turn

the

power

off

and

wait

for

five minutes

or

more beforeopening

the

cover

in order

to

prevent accident leading to electrical

shock.

Basic

precaution

A

CAUTION-------------,

1. Be sure

to

read the instruction manual and

other

explanatory documents supplied with accessories

of

the machine before using the machine. Carefully keep

the

instruction

manual and the explanatory

docu-

ments at

hand

for

quick

reference.

2.

The content

of

this

section

includes items

which

are

not

contained in

the

specifications

of

your

product.

3.

Be

sure

to

wear safety goggles

to

protect against accident caused

by

needle breakage.

4.

Those

who

use a

heart

pacer have

to

use

the

machineafter consultation with a medical specialist.

Safety

devices

and

warning

labels

I

1. Be sure

to

operate

the

machine after verifying

that

safety device(s)

is

correctly installed

in

place and

works

normally in

order

to

preventaccident caused

by

lack

of

the

device(s).

2.

If any

of

the safety

devices

is removed, be

sure

to

replace

it

and verify that

it

works

normally in

order

to

prevent accident

that

can result in personal

injury

or

death.

3. Be sure

to

keep the warning labels adhered on

the

machine clearly

vis

ible in order

to

preventaccident

that can result in personal injury

or

death.

If

any

of

the labels

has

stained

or

come unstuck,

be

sure

to

change

it

with

a new one.

Application

and

modification

I

1. Never usethe machine for any application otherthan

its

intended one and in any manner other than that

prescribed in the instruction manual in order

to

prevent accident that can result in personal injury

or

death.

assumes

no

responsibility

for

damages

or

personal

injury

or

death resulting

from

the

use

of

the

machine

for

any application other than the intended one.

2.

Never modify and alter

the

machine in order

to

prevent accidentthat can result in personal injury

or

death.

assumes

no

responsibility

for

damages

or

personal

injury

or

death resulting

from

the

machine

which

has been modified

or

altered.

Education

and

training

I

1. In

order

to

prevent accident resulting

from

unfamiliarity with

the

machine,

the

machine

has

to

be used

only

by

the

operator who has been trained/educated

by

the

employer with respect

to

the

machine opera-

tion and

how

to

operate the machine with safety

to

acquire adequate knowledge and operation skill.

To

ensure

the

above,

the

employer has

to

establish an education/training plan

for

the operators and edu-

cate/train them beforehand.

Items

for

which

the

power

to

the

machine

has

to

be

turned

off

I

~

Turnin

-

g

the

-po..;er off:

-

T~rning

the

po~er

-

sw~c

-h

-

off

,

then

~emo,;in

g

-the

-

po~er

plug

from

the

outlet

-

This

- - ,

applies

to

the

following.

L

----

------

-------

------------

-----

------------

-

----

--

-----~

1. Be

sure

to

immediately turn the power

off

if

any abnormality

or

failure

is

found

or

in

the

case

of

power

failure in

order

to

protect

against accidentthat can result In personal

injury

or

death.

2.

To protect against

accident

resulting

from

abrupt

start

of

the machine,

be

sure

to

carry

out

the

follow

-

ing operations after

turning

the

power off. For

the

machine incorporating a

clutch

motor

, in particular,

be

sure

to

carry

out

the

following

operations after

turning

the

power

off

and verifying that

the

machine

stops

completely.

2-1. For example, threading

the

parts

such as the needle,

looper

, spreader

etc

.

which

have

to

be

threaded,

or

clhanging the

bobbin

.

2-2. For example, changing

or

adjusting

all

component

parts

of

the

machine.

2-3. For example, when inspecting, repairing

or

cleaning

the

machine

or

leaving

the

machine.

3. Be sure

to

remove

the

power plug

by

holding

the

plug section instead

of

the

cord

section in

order

to

pre-

vent

electrical-shock, earth-leakage

or

fire accident.

4. Be sure

to

turn

the

power

off

whenever the machine is leftunattended between works.

5.

Be sure

to

turn

the

power

off

in

the

case

of

power failure

in

order

to

prevent accident resulting

of

break-

age

of

electrical components.

I

PRECAUTIONS

TO

BE

TAKEN

IN

VARIOUS

OPERATION

STAGES

I

Transportation

I

1. Be sure

to

lift

and

move

the

machine in a safe manner taking

the

machine weight in consideration. Refer

to

the

text

of

the

instruction

manual

for

the

mass

of

the

machine.

From the library of: Superior Sewing Machine & Supply LLC

2.

Be

sure

to

take

suff

icient safety measures

to

prevent falling

or

dropp

i

ng

before

lifting

or

moving

the

machine in

order

to

protect

against

accident

that

can

result

in

personal

injury

or

death.

3. Once

the

machine has been unpacked, never re-pack

it

for

transportation

to

protect

the

machine against

breaka~e

resulting

from

unexpected

accident

or

dropping

.

Unpackin_ I

1. Be

sure

to

unpack

the

machine in

the

prescribed

order

In

order

to

prevent accident

that

can

result

In

personal

injury

or

death.

In

the

case

the

machine

Is

crated,

In

particular,

be

sure

to

carefully

check

nails.

The

nails

have

to

be

removed.

2.

Be

sure

to

check

the

machine

for

the

position

of

Its

center

of

gravity

and take

It

out

from

the

package

careful!

in

order

to

prevent

accident

that

can

result

in

personal

injury

or

death.

Installation

( I ) Table and table stand

1.

Be

sure

to

use

genuine

table and table stand

in

order

to

prevent accident

that

can result

in

per-

sonal

injury

or

death. If

it

is

inevitable

to

use

a table and table stand

wh

ich are

not

genuine

ones

,

select

the

table and table stand

which

are able

to

support

the

machine weight and reaction

force

during

operation.

2. If casters arefitted

to

the

table stand,

be

sure

to

use

the casters

with

a

locking

mechanism and

lock

them

to

secure

the

machine

during

the

operation, maintenance,

inspection

and repair

In

order

to

prevent

accident that can result in personal

injury

or

death.

(

n)

Cable and

wiring

1. Be

sure

to

prevent an extra

force

from

being applied

to

the

cable

during

the

use in

order

to

prevent

electrical-shock, earth-leakage

or

fire

acc

i

dent

. In addition,

if it

Is

necessary

to

cable

near

the

operating

section

such

as

the

V·belt,

be

sure

to

provide a space

of

30

mm

or

more

between

the

operating section

and

the

cable.

2. Be

sure

to

avoid

star

burst

connection

in

order

to

prevent electrical-shock, earth-leakage

or

fire

accident.

3. Be sure

to

securely connect

the

connectors

in

order

to

prevent electrical-

shock

, earth-leakage

or

fire

ac-

cident.

In

addition

, be

sure

to

remove

the

connector

wh

ile

holding

Its

connector

section.

(

m)

Grounding

1.

Be

sure

to

have

an

electrical expert install an appropriate

power

plug in

order

to

prevent accident

caused

by

earth-leakage

or

dielectric strength voltage fault. In addition, be

sure

to

connect

the

power

plug

to

the

grounded

outlet

without

exceptions.

2.

Be

sure

to

ground

the

earth cable in

order

to

prevent accident caused

by

earth leakage.

(IV) Motor genuine

product)

in

order

to

prevent accident caused

by

1. Be

sure

to

make

sure

that

the

connectors

and cables arefree

from

damage,

dropout

and looseness be-

fore

turning

the

power on

in

order

to

prevent accident resulting

in

personal

Injury

or

death.

2.

Never

put

your

hand

I

nto

the

moving

sections

of

the

machine in

order

to

prevent accident that can result

in

personal I

njury

or

death.

In addition, check

to

be surethat the direction of rotation

of

the pulley agrees with thearrow shown on pulley.

3.

If

the

table stand

with

casters

is

used,

be

sure

to

secure

the

table stand

by

locking

the

casters

or

with

ad usters,

if

rovided,

In

order

to

protect

against accident caused

by

abrupt

start

of

the

machine.

Durin o eration

1.

Be

sure

not

to

put

your

fingers,

hair

or

clothing

close

to

the

mov

i

ng

sections

such

as

the

handwheel,

hand pulley and

motor

or

place something near

those

sections

while

the

machine Is

In

operation in

order

to

prevent accident caused

by

entanglement

that

can

result

In personal I

njury

or

death.

2. Be

sure

not

to

place

your

fingers near

the

surround

area

of

the

needle

or

ins

i

de

the

thread take-up lever

cover

when

turning

the

power on

or

while

the

mach

ine is In operation

in

order

to

prevent accident that

can result

In

personal

Injury

or

death.

3. The machine

runs

at a

high

speed. Never

bring

your

hands near

the

moving

sections

such as

looper

,

spreader, needle bar,

hook

and

cloth

trimming

knife

during

operation in

order

to

protect

your

hands

against Injury.

In

addition, be

sure

to

turn

the

power

off

and

check

to

be

sure

that

the

machine complete-

ly

stops

before changing

the

thread.

4. Be careful

not

to

allow

your

fingers

or

any

other

parts

of

your

body

to

be

caught between the machine

and tablewhen removing

the

machine

from

or

replacing

it

on

the

table

in

order

to

prevent

accident

that

can result

In

personal

Injury

or

death.

5. Besure

to

turn the power

off

and check

to

be

surethat the machine and motorcompletely stop before remov-

ing thebeltcover and V-belt in orderto prevent accident caused by abrupt start of the machine

or

motor.

6. If a servomotor

Is

used with

the

machine,

the

motor

doe

s

not

producenoise while

the

machine Is at rest.

Be sure

not

to

forget

to

turn

the power

off

in

order

to

prevent accidentcaused by abrupt start of

the

motor.

7. Never

use

the

machine with

the

cooling

opening

of

the

motor

power box shielded in

order

to

prevent

fire

accident

by

overheat.

From the library of: Superior Sewing Machine & Supply LLC

Lubrication

1. Be

sure

to

use

genuine

oil

and

genuine

grease

to

the

parts

to

be lubricated.

2.

Ifthe oil adheres

on

your

eye

or

body,

be sure toimmediately

wash

it

off

in

order to prevent inflammation

or

irritation.

3.

If

the

oil

is

swallowed unintentionally,

be

sure

to

Immediately

consult

a medical

doctor

in

order

to

pre-

vent diarrhea

or

vomiting

.

Maintenance I

1. In

prevention

of

accident caused

by

unfamiliarit

y

with

the

machine, repair and

adjustment

has

to

be

carried

out

by

a service

technician

who

Is

thoroughly

familiar

with

the

machine

within

the

scope

defined

in

the

Instruction

manual.

Be

sure

to

use

genuine

parts

when replacing any

of

the

machine

parts.

assumes

no

responsibility

for

any

accident

caused

by

Improper

repair

or

adjustment

or

the

use

of

any

part

other

than genuineone.

2.

In

prevention

of

acci

dent

caused

by

unfamiliarity

with

the

machine

or

electrical-shock

accident

,

be

sure

to

ask

an

electrical technician

of

your

company

or

distributor

in

your

area

for

repair

and

mainte-

nance

(

including

wiring)

of

electrical

components

.

3. When

carrying

out

repair

or

maintenance

of

the

machine

which

uses

air

-

driven

parts

such

as

an

air

cy

l-

inder, be

sure

to

remove

the

air

supply

pipe

to

expel

air

remaining

in

the

machine

beforehand,

in

order

to

prevent accident caused

by

abrupt

start

of

the

air-driven parts.

4. Be

sure

to

check

that

screws

and

nuts

are free

from

loo

seness

after

completion

of

repair,

adjustment

and

part

replacement.

5.

Be

sure

to

periodically

clean

up

the

machine

during

Its

duration

of

use.

Be

su

re

to

turn

the

power

off

and

verify

that

the

machine

and

motor

stop

completely

before

cleaning

the

machine

in

order

to

prevent

ac-

cident

caused

by

abrupt

start

of

the

machine

or

motor

.

6. Be

sure

to

turn

the

power

off

and

verify

that

the

machine

and

motor

stop

completely

before

carrying

out

maintenance,

inspection

or

repair

of

the

machine

. (

For

the

machine

with

a

clutch

motor

,

the

motor

will

keep

running

for

a

while

by

inertia

even

after

turning

the

power

off

.

So

,

be

careful.)

7.

If

the

machine

cannot

be

normally

operated

after

repair

or

adjustment

, immediately

stop

operatio

n and

contact

or

the

distr

i

butor

In

your

area

for

repair In

order

to

prevent

accident

that

can

result

in

per-

sonal

injury

or

death.

8.

If

the fuse has blown, be sure

to

turn the power

off

and eliminate the cause

of

blowing

of

thefuse and re-

place the blown fuse with a new one

in

order

to

prevent accidentthat can result In personal

injury

or

death.

9.

Be

sure

to

periodically

clean

up

the

air

vent

of

the

fan

and

Inspect

the

area

around

the

wiring

in

order

to

revent

fire

accident

of

the

motor.

Operating environment

1.

Be

sure

to

use

the

machine

under

the

environment

which

is

not

affected

by

strong

noise

so

urce

(electro-

magnetic waves)

such

as

a

high-frequency

welder

In

order

to

prevent

accident

caused

by

malfunction

of

the

machine

.

2. Never operate

the

machine

in

any place

where

the

voltage

fluctuates

by

more

than

"rated

voltage

±1

0 %"

in

order

to

prevent acci

dent

caused

by

malfunction

of

the

machine

.

3. Be

sure

to

verify

that

the

air-driven

device

such

as

an

air

cyli

nder

operates

at

the

specified

air

pressure

before

using

It

In order

to

prevent

accident

caused

by

malfunction

of

the

machine

.

4.

To

usethe machine with safety,

be

sure to use It under the environment which satisfies the following conditions:

Ambient

temperature

during

operation soc

to

35°C

Relative

humidity

during

operation 35

%to

85

%

5. Dew condensation can

occur

if

bringing

the

machine suddenly from a cold environment

to

a

warm

one. So,

be

sure

to

turn the

power

on after having waited

for

a sufficient period

of

time until there Is

no

sign

of

wa-

ter

droplet

in

order

to

prevent accident caused

by

breakage

or

malfuncti

on

of

the

electrical

components

.

6.

Be

sure

to

stop

operation

when

lightning

flashes

for

the

sake

of

safety and

remove

the

power

plug

in

order

to

prevent

accident caused

by

breakage

or

malfunction

of

the

electrical

components

.

7.

Depending

on

the

radio

wave

signa

l

condition

,

the

machine

may

generate noise

in

the

TV

or

radio.

If

this

occu

rs,

use

the

TV

or

radio

with

kept

well away

from

the

machine

.

8.

For

the

worker

who

is

Involved

in

the

work

to

be

done

In

the

environment

relevant

to

"

noise

value

in

the

working

environment

Is

85

dB

or

more

and

less

than 90

dB

",

be

sure

to

take

appropriate

measures,

as

required, su

ch

as

the

use

of

ear protection

or

the

like

to

protect

against

health hazard. In addition,

for

the

worker

who

is

Involved In

the

work

to

be

done

In

the

environment

relevant

to

"noise

level

in

the

working

environment

Is

90

dB

or

more

," be

sure

to

instruct

him/her

to

wear ear

protection

without

exceptions

In

order

to

protect

against health hazard, and

display

a

sign

explaining

how

to

use

the

ear

protection

at

an

easily viewable

location

for

the

worker.

From the library of: Superior Sewing Machine & Supply LLC

--------FOR

SAFE

OPERATION--------

~

&

1.

2.

3.

4.

5.

6.

7.

8.

9.

Don't

put

your

hand

under

the

cloth

cutting

knife and

the

needle when

you

turn

"on"

the

power

switch

or

operate

the

machine.

Don't

put

your

hand

into

the

thread take-up cover while

the

machine

is

running.

Never

bring

your

fingers;

hair

or

clothing

close

to,

or

place

anything

on

the

handwhe~l,

V-belt, bobbin

winder

wheel

or

motor

during operation.

If

your

machine

is

provided with a

belt

cover,

finger

guard

and

safety plate,

never

operate

your

machine with

any

of

them removed.

When

tilting

the

machine

head, exercise care

not

to

allow

your

fingers

etc.

to

be

caught

under

the machine head.

To

ensure safety,

never

operate

the

machine with the

ground

wire

for

the

power

supply

removed.

Before inserting/removing the

power

plug, the power switch has

to

be

turned

OFF

in

advance.

In time

of

thunder

and

lightening,

stop

your

work

and

disconnect

the

power

plug

from

the

reeceeptacle

so

as

to

ensure safety.

If

the

machine

is

sudden

ly

moved

from

a·

cold

place

to

a

warm

place,

dew

condensation

may

be observed. In

this

case,

turn

ON

the

power

to

the

machine

after

you

have confirmed

that

there

is

no danger

of

water

drops

in

the

machine.

10. Becareful

of

handling

this

product

so

as

not

to

pour

water

or

oil,

shock

by

drop-

ping, and

the

like

since

this

product

is

a precision instrument.

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From the library of: Superior Sewing Machine & Supply LLC

CONTENTS

CAUTION BEFORE OPERATION··············

:··

······················································································· 1

SPECIFICATIONS············.···················································································································· 2

1.

MOTOR PULLEY AND V BELT .......................................................................................

...

............ 3

2.

SETIING

UP

THE SEWING MACHINE ......................................................................................... 5

3.

SETIING

UPTHE MACHINE HEAD ..............................................................................................8

4. ATACHING THE FLAT BELT..........................................................................................................9

5. INSTALLATION/REMOVAL OF BELT COVER ...............................................................................10

6.

SETIING

UP THE THREAD STAND............................................................................................. 10

7. LUBRICATION ..............................................................................................................................

..

11

8. HOWTO INSTALLTHE NEEDLE ..................................................................................................

12

9. INSTALLATION/REMOVAL OF BOBBIN CASE............................................................................

..

12

10. WINDING THE BOBBIN.....................................y

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

.......

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

.

13

11. THREAD THE NEEDLE-THREAD................................................................................................

13

12. THREADING THE NEEDLE-THREAD........................................................................................

14

13. REDUCTION OF SEWING SPEED AND EMERGENCY STOP.................................................

14

14. MANUAL.FEED HANDLE ................................................................................................................

15

15. HOW TO HOLD THE DESCENDING KNIFE .................................................................................. 15

16. TYPES OF STITCHES

..

................................................................................................................. 16

17. THREAD TENSION ........................................................................................................................

16

18. ADJUSTING THE BUTIONHOLE LENGTH ................................................................................... 18

19. REPLACING THE KNIFE ................................................................................................................

19

20. ADJUSTING THE BUTIONHOLE WIDTH (STITCH WIDTH AND

BAR TACKING WIDTH) AND

BUTIONHOLE

REFERENCE POSITION .......................................

19

21. CHANGING THE NUMBER OF STITCHES ..................................................................................

20

22. ADJUSTING THE PRESSER BAR PRESSURE ...........................................................................

21

23. NEEDLE-TO-HOOK RELATION .....................................................................................................

21

24. ADJUSTING THE THREAD TENSION RELEASE TIMING .............................................................

22

25. ADJUSTMENT OF THE BOBBIN PRESSER UNIT.........................................................:..............

23

26. ADJUSTING THE BOBBIN THREAD WINDER ..............................................................................

24

27. ADJUSTMENT THE SPEED THANSMITIER .................................................................................

24

28. ADJUSTMENT OF·THE NEEDLE THREAD TRIMMER ................................................................

..

25

29. ADJUSTMENT OF THE BOBBIN THREAD TRIMMER.................................................................. 26

30. ADJUSTMENT OF NEEDLE THREAD.TRIMMER HOLDER AND LIMITING PLATE .....................27

31. TIMING FOR DROPPING THE KNIFE ....................................................................:......................

27

32. TROUBLE, CAUSE, AND REMEDY ...............................................................................................

28

33. STITCHING TROUBLES CAUSED BY OTHER REASONS .........................................................

31

From the library of: Superior Sewing Machine & Supply LLC

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From the library of: Superior Sewing Machine & Supply LLC

BEFORE OPERATION

_

if\

WARNING:

.

t-

~

To avoid malfunction and damage of themachine, confirm the following.

'-=----------'

• The normal rotating direction of the sewing machine

is

counterclockwise, as observed

from

the pu

ll

ey

side. Be sure

not

to

let

it

rotate

in

a clockwise direction.

• Neveroperate the machine unless the sewing machine head base has been properly l

ubr

icated.

• Be sure

to

remove the bobbin case and needle thread from the machine when doing trial sewing.

• Be sure

to

remove any dustfrom the hookor bobbin thread cutting knife section atthe end

of

theday,

and check the amount

of

oil remaining.

• Be

su

re to return the activating pedal to the home position after the machine has started

to

run.

If

the

pedal

is

held depressed, the sewing machine may doubie the seam

or

cause a

stop-mot

i

on

during

sewing at

high

speed.

• Confirm that

the

voltage has been correctly set.

Confirm that the powerplug has been properly connect.ed

to

the power supply.

• Do

not

turn the manual handle

wit

h the presserlifting pedal held depressed.

The feed Is locked and the related components may be damaged.

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From the library of: Superior Sewing Machine & Supply LLC

ISPEC

IF

ICATIONS I

~.m

~

781

782 I 783

Application Buttonholing for ordinary cloth, knit, etc.

Sewing speed Max. 3,600sti/min

Buttonholing 22mm 33mm I 40mm

sewing length

Bar-tacking width 2.5 to 4.0mm 2.5 to 5.0mm

(3/32" to 5/32")

(3

/32" to 3/16")

Knife si

ze

used 6.4 - 1.9mm 6.4 -25.4mm I 6.4 -

31

.7mm

(1/4"

to

3/4")

(1

/4" to 1")

(1

/4" to

11

/4")

Needles DPx5 #

11

to

#14

Presser lift 12mm (15/32")

781

782 783

J'llii

-

mt;{jj*4-

<tH,q;{ji

.t4

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B'HJI!D~

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ii~

3,600sti/min,

.f

;j;

lfE

3,000st

i/m

in

( 1tHat2,800

st

i/

min

)

a

tLH~*.!t

22mm

33m

m 40mm

b

t

L

H~~lt

2.5 - 4mm

2.5

-5mm

2.5-

5mm

cVlJJ*ll

6.4

-1.9mm 6

.4

-25.4mm

6.4

-31.7mm

()

1*1

1-J~'t

(1/

4" - 3/4") (1/4" - 1

")

(1/

4" - 11/4")

t!Ut

DPx

5 #

11

- #

14

ffiJJ!P~Jj

12mm

From the library of: Superior Sewing Machine & Supply LLC

WARNIN

G:

~

To protect against possiblepersonalinjurydueto abrupt start

of

themachine,be su

re

to sta

rt

thefollowing w

or

k

afterturning

th

e power offand ascertaining that the

motor

is

at rest.

&

~~:.0:.

/.

l&

~

~71!Ji.i.l:.iHHt-J~i;:[email protected]((.J.$:,

iR~J~It!~.

~iA.lH~~~~.i.l:.~il!Jm-MnH'Tl~Hf.

11.MOTOR PULLEY AND V

BELT

/Qdii

&:iW~

~

IlV

m

&:

iW

1.

~~-r!Jfl·;f§~:=;f§B3

4lbt

300W

~~.

*How

to

install motor pulley

Place

motor

pulley 0 ·into the

mo

t

or

shaft

so

that flat part

0 of the motor shaft aligns with first setscrew

f)

.

Then securely tighten setscrews

f)

and

0 .

*

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.

1. Motorof 300W,4-pole are used

for

single-phase

or

three-

phase

opera

tion. (If a

250W

moto

r

has

to

be used,

operate the machine

at

3,100 sti/min or less.)

2. M-type V belts are used.

3. Refer to the following table

for

the

motor

pulleys, V belt.

length, and sewing speed.

(1to*-r!

ffl25

0W

~:itB;f.

~lfil~~

tl

:(f4ij:?}

3,100sti/min

~r

.

)

2.

19!Jfl

M

~

V

*••

·

3.

~~--~~v*•**•·

~wm~lf~*••rm~

.

Sewing speed

Hz

Motorpully part

No.

H1gh

speed v belt

Low

sp

ee

d Vbelt

tiiilitliU£

~~Jt1tmtlj~%

~]!V*.!t'llf

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50

87262-78

1

-000A

45

(1

1

43)

42

(1

067)

3.600

st

i

/mi

n

60

87263

-781

~OOOA

43

(1

092)

41

(1

041)

50

87256-781-000A

44

(1

118)

42

(1

067)

3.300

sti/min

60

87257-781

-

000A

43

(1

092)

42

(1

067)

50

87253

-

781-000A

44

(1

118)

42

(1

067)

3.000

sti/min

60

87254-78

1-

000A

42

(l

067)

41

(1

041)

50

87258

-

78

1-0

00A

43

(1

092)

42

(1

067)

2.800

sti/min

60

87259-781-000A

41

(1

041)

41

(1

041)

(V·belt Part number:

MT

J-VMOO

0 0

00,

00

:V-belt

le

ngth)

(V

%.1!fi¥J:!Jt%:

MTJ-V

MOOD

0 00, 0 0 : V

*•11fi¥J¥:!Jt)

From the library of: Superior Sewing Machine & Supply LLC

0 Motorpulley

l?!i!.rtm$t

*

How

to

install V

belt

1. Mount

·h

igh-speed V belt 0 on accelerating pulley 0 and the large diameters

of

the motorpulley.

2.

Mount low-speed V belt.O

on

low-speed pull

ey

9 and the sma

ll

diameters of the motorpu

:l

ey.

3. By moving the

motor

from side to siqe, adjust the tension

of

V belts 0 and 0 so th

at

they give

an

approx. 10

mm

sl

ack

when their middle portions are pushed lightly

by

hand.

4.

Move

the

motor

pulley back and forth to align V belts 0

and

0 .

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}ti!

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ffl~ji

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re-m;j!

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£rtffi

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&:

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89

!fl

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~~~~It

1iJ

1

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tr:

1:i

.

tr:

1:i

f$

;1J

l?7J;5iiHrifol~.

4.

li1IFcf$;1JQ,J;5Jt1!1~~

v

%&:7W

00

~M=:(E

-

1I~L..

2. SETTING UP THE SEWING MACHINEI

8~MH9$:Jtn~

l.Screws

used

for

set up I

~fti~{t)@ag•ij\

0

2 5 8 5 4.5 20.5

3.5

12

. . 3 2.3 9

lfl

~28

~

28

16 10

416

'a

'&

~

Q

~

i

[}}D

@~Bid

-40

~

4

-

40

N -

~

2. Attaching The ShifterDriving

Pin(asm.)-7t~lllbM(iiH4:)H9$:•

1)

Fully apply the supplied grea

se

to

the

of

the

shifter drive

(asm.) 0 and

the

rubber surface

on

the rear(See arrows C)

of

figure).

2)

Using screw 0 ,fix the shifter d

ri

ving pin (asm.) on

machine head base 0 .

3)

Using screw 0 ,fix driving pin base 8

on

the rear

surface

of

the machine head base so that the shifter

driving pin moved

up

and down smoothly.

4) Install snap ring 0 on the shifter driving p

in

(asm.).

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3. lnstlllng

Transmitter(asm.)And

ShifterBase(asm.)

l.fl~ft(~f-1:)~71-~ft·(~f-F)tf.J:it.

1)

Place mach

in

e head base 0 with its rear surfase

facing toward

you

.

2)

Fix transmitter (asm.) 8 by screw

(j

.

3)

Fix shifter base 0 by screw (!) .

4)

Attach shifter tension spring 0 to shifter stopper

bracket (

asm

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0 of the shifter stopper base (asm.).

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4. Installing The Tension Pulley Coupling

~jJBl.~~f-Ftf.J:it.

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0

1)

Fix tension pulley coupling 0 by hexagon screw

&supplied with the reducer (asm.).

2)

Install stud 0 and machine head base seat felt 0

on

machine head base 0 .

3)

Fully

apply

the

suppl

i

ed

grease

to

the

shifter

dr

ivi

ng

ba

se again.

Also

apply

the

supplied

grease to

the

end

of

the

shifter

driving

and

the

he

ad

of

the

screw

of

the

shifter

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5. Installing The Machine Head Base (asm.) 8DlRl

(llf-I:)B(]gc~

6. Installing The MotorI

,~)lB(]gc~

~

fl+

mm

1) Fix dr

ain

funnel 0

to

the

dra

in

ho

le

(0

25)

in

the

table by wood screw

~

.

2) Placing the machine head base (asm.)

f)

on the

table, fix it by tightening nut 8 (flat washer 0 is

used) from the bottom of the table.

1)

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1) Install motor 0 on motor base

f)

by screw 0 (flat

washer 8 ,spr

in

g washerO , and nut 0 are used).

2) Placing spacer 0 between the ta

bl

e bottom and the

motor base, fix the motor base by installing bolt 0

(a flat washer 0 and nut 0 are used). Tighten the

nuts so that the lower nut is levelled with the end

of

bolt 0

or

bolt 0 projects by 0.5 mm.

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3. SETTING UPTHE MACHINE HEAD

/ilktnltifHf.J~-

WARNING:

To

preve

nt

possible accidents caused by

th

efail

of

the sewing machine, perform the

work

by

two

persons or

mo

re when the

machin

e is moved.

i.

Attach oil-drain funnel 0 to the oil-drain section

(2513)

on the table using the woodscrews.

2. Attach studs

f)

(both sides are threaded.) to the machine base.

3. Put machine base felt pads (4 pes.) 8 on the four holes of the table.

4. Put the machine base

on

them, and tighten itfrom the under side of the table using nut 0 to fix it.

5. Hang S-shaped metal fitting 0 on starting link 0 attached in the rear of the mac

hi

ne

base. Then connect it with

chain 0 ,and attach itto the start pedal.

6. Putting cushion 0 into hinge0 ,insert hinge 0 into the machine head. Then, place the machine head on the

machine base.

7. Then, adjust the wire-netting of the pump suction hole so that it comes belowthe bed screw stud by 2 to 3 mm.

(The height can be adjusted with 0 .)

8. After placing the machine head, adjust the starting link adjusting bolt as stated below. After confirming that the

sewing machine is in the stop motion state, push starting link

CD>

to the rearside.

At

this time, adjust with nut ® so

that a clearance of 0.5

to

1 mm is provided between

Q)

and m.

At

this

ti

me, a clearance of 0.5

mm

is

provided

between the presser

bar

lifting lever and the starting lin

k.

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From the library of: Superior Sewing Machine & Supply LLC

Siruba BH780 Datasheet

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