Mitsubishi LU2-4710, LU2-4730 Instruction Manual

A

MITSUBISHI

INDUSTRIAL

SEWING

MACHINE

Model

LM2-4710.4730

1

I

'1

Thank

Sewing

Before

booklet

you

for

Machine.

the

useofyour

carefully'.

Single-Needle,

Automatic

Variable

your

purchase

sewing

of

machine,

Double-Needle

Lockstitch

Compound-Feed

undertrimmer

speed

Mitsubishi

please

Industrial

read

Classes

control

this

INSTRUCTION

MANUAL

PRECAUTIONS

BEFORE

STARTING

OPERATION

[i]/Safetv

1. When

2.

Precautions

turning

around/under Power

mustbeturned

his/her

seat.

the

power

needle

off

on, keep

and

when

the

area

the

your

hands

around

the

machineIsnot

and

fingers

pulley.

used,orwhen

away

the

from

operator

the

area

leaves

3. The power must be turned off before tilting the machine head. Installing or removing

the"Vbelt, adjusting

4. Avoid placing fingers, hairs, bars etc., near the pulley, "V" belt, bobbin

or

motor

when

5. Do not Insert'fingers Into the thread take-up cover, under/round the needle, or pulley

when

the

machine

6.Ifa

belt

cover,

without

these

(D

Precaution

1. If

the

2. If

the

lubricating.

3. When a new sewing machine Is first turned on, verify the rotational direction of the

pulley

(The pulley should rotate counterclockwisewhen viewed from the pulley.)

before

machine's

machineIslubricated

with

the

machine, or

the

machineIsoperation.

Is In

operation.

finger

guard,

safety

devices.

Starting

oil pan has an oil

power

on..

and/or

eye

Operation

sump,

by a

when

drop

Injury

guard

never

oiler,

replacing.

could

result.

are

installed,donot

operate

never

whder

operatejthe

the

machine before filling It.

operate

the

machine

pulley,

>

machine

|

before

4. Verify the voltage and (single or three) phase with those given on the motor

nameplate.

[3j Precaution for

1. Avoid

temperature(5°C'or lower). Otherwise,

2. Avoid

3. Avoid using the machine In

high-frequency

using

Operating

the

machineIndusty

welder

Conditions

machineatabnormally

and

others.Isgenerated.

high

machine

conditions.

areas

where too much electrical noise, resulted from the

temperature(35''C

failure may result.

or higher) or low

SPECIFICATIONS

-

CONTENTS-

1

PREPERATION

I 1 I

Connecting

I 2 I

Settingupthe

I 3 I

Settingupthe

I 4 I

Adjustmentofneedle

CAUTIONS

ON

FOR

USE

OPERATION

the

electric

control

activating

cablestothe

panel

speedofthe

bar

stop

position

control

air

cylinder

box

I 1 I Oiling (1) 6

Oilihg (2) 6

I 3 I Oiling I 4 I

I 5 I

HOW

I1I

I 2 I dl

I 4 I I S I

I 6 I I 7 I

I 8 I I 9 I

1101

ill!

112 I

113 I 1141

115 I

116 I

117 I

118 I 119 I

1201

I21 I 122 I 123 I

1241

I251 I261

127 I

I28 I I29 I

130 I

I311

1321

1331

condition

Adjustmentofoilingtorotating

Cautionsonoperation

TO

Adjust

and

use

the

hook

machine

lnsta|llationofneedles

Windingofbobbin Selectionofthread

Threadingofneedle

Adjustmentoffeed

Settingofbobbin Adjustingofneedle

Threadingofbobbin Tension

Balanceofthread

Needle

Adjustmentofpresser

Adjustmentofthread AdjustmentofOutside

Instant

The

Installing

Adjustmentofthe Timing

adjustmentofbobbin

thread

alternating

stopper

the

between

Adjustment of feed dog height 17

Relationship Relationship Relationship

Safety

clutch

Upper

feed

adjustment

Adjustmentofforward/backward

Installation

Positioningofthread Adjustmentofthread

Adjustmentofneedle

of

Adjustmentofscissoring

Sharpeningoffixed

Adjustment

thread

threads

(stitch)

length

thread

guide

threads

tention

foot

pressure

screw

Feed

rotathing

between between between

device

movable

take-up

switch

for

regulator

alternating

trimmer

threads

presser

adjusting

hook

rotating hook

motion

needle

(Needle

knife

spring

foot

the

bracket

stroke

motion

nook

motion

side)

stitch

cam

tention

pressureofmovable

knife

for

changeofneedle-to-needle

and

instant

motion

and

stitch

Inside

sensing

and

opener

and

length

release

reversing

presser

alternating

potentiometer

needle

and

take-up

motion

feed

dog

assembly

knife

distance

(touch

back)

foot

stroke

motion

lever

motion

and

fixed knife 25

(LU2-4730) 26

2

3

4

5

7 7

7

8

8 9

9

10

10 10

11 11

11

12 12

14

15

15 16

18 18 19

20

21 21

22

23 23

24

25

SPECIFICATIONS

Specifications

Model

Numberofneedles

Application

Max.

sewing

speed

Stitch

lengtli

Presser-footj

stroke

Needle

Needle-bar

Thread

Alternating

Automatic

Touch

Hook

Bobbin

Lubrication

Oil

Bed

No.

stroke

take-up

thread

back

(horizontal

dimensions

(mm)

lever

full-rotating)

system

Hand

Knee

stroke

movement

stroke

instant

trimmer

adj.

(mm)

lifter

(mm)

(spm)

3000 2700

2000

LU2-4710-BIT

Single-needle

reciprocal

st. St. length

2

3

5-6

Aluminum

Heavy

0-6

6-9

DPX17#23

Air

Automatic

material

0-9

9

16

36

72

2-6

Dial

cylinder

o

Large

trimmer

lubrication

MC70M

517X178

(spm)

2500

2300 2000

LU2-4730-BIT

Double-needle

reciprocalst.

2

3

5-6

type

St. length

0-6

6-9

Needle

gauge

^ The maximum sewing

However, it is sewing

Notes: *

not

speed

• Feed dog, throat plate, rotating hook, bobbin

•

fixed automatically to

whenever

Some

materials,

than

those

for

thred

Bobbin

This

timmer.

should

specificationissubjecttochange

(mm)

speed

is fixed automatically acceding to the alternating up and down stroke.

it is

requiredtothe

gauge

listed

above.

be of

high

the

sizes, and/or sewing conditions may require specifications

quality

free

stitch

from

for

- 1 -

—

length. So

length.

case

deformation.

machine

please

adjust

manually

and bobbin should be

improvement.

the

those

maximum

other

designed

PREPARATION

m

Connecting

Connet

the

1.

Connect

connect3pin

to

alternate

2.Inthecaseof

2

connector

3.

Connect

the

solenoid

Air

the the

NOTE : For

cylinder

walking sewing

your

used

foot

machine

FOR

OPERATION

the electric cablesto the controlbox

electric

cablestothe

the

cables

(N0.(^ )

connector

the

walking

using

the

(N0.@)

theairtube

valve

(NO.©).

safety,

always

for

alternating

movementisbuilt

head.

(NO.d))

foot

knee

tothe

(NO.©)

control

extended

movement

switch

knee

extended

turn

off

in

boxasshownonthe

from

tothe

the

solenoid

instantly.

(N0.(^) asthe

switch

(N0.@).

from

the

power

switch

Pattern

(Option)

sewing

valve

alternating

sewing

figure.

machine

(NO.Cf))

machine

whenever

selector

P

air

head

tothe

used

switch,

head

connectordisconnect

porttothe

supply

control

for

activating

connect

the

totheAport (NO.©) of

source

box

theair

optional

connectors.

andthen,

cylinder

NO.

Regulator

(Option)

3,

Knee

switch

LE-FM-CFT

(Option)

LEVER

ENCODERSWPANEL

DETECTOR

- 2 -

A

porttothe

flow

OPIIONIH.0PTI0N2

control

OPT10N3

Solenoid

activating to

alternate movement (Option)

SU

R

port

exhaust

valve

the

valve

used

air

the

walking

instantiy

for

cylinder

foot

PREPARATION

FOR

OPERATION

[2] Settingupthe

1.

Firstly

setupthe

machine

following

(1)

Set up programming mode (T]

.Q.

LOW

(2) Set up

HS

model

Instructions.

g)l§

the

sewing machine model

011

Q

LOW HGH

(3) Fix

the

program

.Q.

LOW

011

g

control

LU2-4410-BIT

control

panel

paneltothe

i i i

111

aC

AT

1 i 1 i

aC

AT

with

number

QD

1»

the

At

the

normal

mode

(only

the

sewing

rotating

3 keys,(p, and [i] at the sametime for

than2sconds.

The display 180M. is appeared in the indicator.

indicationisappeared),

Indicate

machine model

or (?) key.

the0key,

the

display 410b

PressDkey

display

'CLEAR*

machine

control

model

the

panelisreturnedtothe

number

for

setting

showing

LU2-4410-BIT with

more

than2seconds.The

comesupafter

numberisblinked.Ifrelease

up is

finished,

press

the

then,

normal

macine

sewing

[I]

sewing

the

mode.

3 —

PREPARATION

2.

Exclusive

(1)

Settingupprogram

Press

(2)

Settingupprogram

setting

[T]

and[£]keysat the same timefor morethan 2 seconds and set the

Item

(Max.

H

(Medium

M

(Needle

RU

(Reversal

R8

Press [T]and keys at the

Item

11

(IN1)

12

(IN2)

I2A

(Alternate)

CD

(L

04

04L

05

ODC(L

output)

(ERR

(Logic

(KS3

output chopping)

(3) Setting up program [f]

Press3keys,CD>CDend[H

items.

0VL1

Only

VP2

(Voltageonthe

(Voltage on

VC2

two

items

Item

(Working

marked

FOR

OPERATION

for

LU2-4710/4730

[p]

high

speed)

back

up)

degree)

same

time for more than 2 seconds and

output)

change)

output)

keys

atthe sametimeformorethan 2secondsandset the

yield

point

the

yield point 1) 67 (80)

modeofVC2) LM

with

©mark

2)

are

^ismodel

Mismodel

different

Setting

3000

Setting

S7

101

ON

0T1

B

ON

0T1

ON

Setting

70

between

500

ON

following

44

4730

set

the following items.

items.

following

4730

the

model

4710

and

4730onthe

setting.

m Settingupthe

1.

When

control

2.

valve.

When

solenoid

control

valve.

the

activating

pulling

speedofthe

pushing

speedofthe

speedofthe air

air

cylinder,

air

cylinder,

4 —

cylinder

adjust

the

adjust

air flow of

the

exhaust

theAportonthe

solenoid

valveoftheRportonthe

PREPARATION

0

Adjustmentofneedle

FOR

OPERATION

bar

stop

position

1. Adjust of "UP" position

When

the

machine

pedal is kicked down by heel, the

stopsat"UP"

position. If

the

deviate larger than 3 mm, adjust as follows.

—1. Disconnect the plug (12 pins)ofcable from

the

—2. Run

machine

head.

the

machineand stop at "UP" position.

—3. While holdingthe pully,insert the "adjus

ting tool" in

tool.

2. Adjust of

When

the

stopsat"Down"

large

than

—1. Disconnect

the

machine

—2. Run

position.

—3.

While holdingthe pully,insert the "adjus

the

hole

then

"Down"

position

pedalis"Neutral"

position.Ifthe

the

marks

5 mm, adjustasfollows.

the

plug(12 pins) of cable from

head.

the

machine and stop at "Down"

remove

ting tool" inthe hole®,then removethe

tool.

3. Confirm the stop operation, then set the plug (12

pins)

coming

from

the

receptacle

machine

head

marks

the

machine

deviate

into

the

Timming

mark

white

Black

Arm

mark

"Up"

"Down"

BEFORE

Pully

position

Adjusting

tool

AFTER

- 5 -

CAUTIONS

ON

USE

[T]

Oiling

(1)

Fill

the

oil

Oil level level is

"H"

level.

reservoir

shouldbeperiodically

found

below

with

"L"

oilupto

checked.

level

replenish

For oil, use MC70M specified by Mitsubishi.

Oil

level

"H"

mark.

If oil

oil

Oiling (2)

When a

new

sewing

to

time,orsewing

considerably

suitable

amount

by

arrowinthe

machineisused

machine

long

timeisused

of oiltothe

below

left

figure.

out

again,

portions

for

the

of use

replenish

indicated

first

for

a

- 6