Mitsubishi Electric LU2-4400-B0B Bedienungsanleitung

A180E269P02

LOCKSTITCH COMPOUND FEED INDUSTRIAL SEWING MACHINES

INSTRUCTION MANUAL

LU2-4400-B0B (Single-Needle)

LU2-4420-B0B (Double-Needle)

MODEL

PRECAUTION BEFORE STARTING OPERATION

1 Safety Precautions

1 . Whenturningthepoweron,keepyourhandsandngersawayfromtheareaaround/

undertheneedleandtheareaaroundthepulley.

2 . Thepowermustbeturnedo󱐯whenthemachineisnotused,orwhentheoperator

leaveshis/herseat.

3 . Thepowermustbeturnedo󱐯beforetiltingthemachinehead,installingorremoving

the“V”belt,adjustingthemachine,orreplacingparts.

4 . Avoidplacingngers,hairs,obstacles,etc.nearthepulley,“V”belt,bobbinwinder

wheel,ormotorwhenthemachineisinoperation.Injurycouldresult.

5 . Don’tputngersintothethreadtake-uplevercover,around/undertheneedle,or

pulleywhenthemachineisinoperation.

6 . Ifthebeltcover,thengerguard,and/ortheeyeguardareinstalled,don’toperate

themachinewithoutthesesafetydevices.

2 Precaution before Starting Operation

1 . Ifthemachine’soilpanhasanoilsump,neveroperatethemachinewithoutllingoil

init.

2 . Ifthemachineislubricatedbyadropoiler,neveroperatethemachinewithout

lubricating.

3 . Whenanewsewingmachineisoperated,verifytherotationaldirectionofthepulley

withthepoweron.

 (Thepulleyshouldrotatecounterclockwisewhenviewedfromthepulley.)

4 . Verifyvoltageand(singleorthree)phaseindicatedonthenameplateofthemotor.

3 Precaution for Operating Conditions

1 . Avoidusingthemachineatabnormallyhightemperature(35℃orhigher)orlow

temperature(5℃orlower).Otherwise,machinefailuremayresult.

2 . Avoidusingthemachineindustyconditions.

3 . Avoidusingthemachineinconditionslledwithalotofelectricnoisessuchashigh-

frequencywelders.

INTRODUCTION

　ThankyouverymuchforpurchasingMitsubishiindustrialsewingmachine.

　Pleasereadthisinstructionmanualbeforeoperatingthesewingmachine.Pleasereadalso

“SafetyManual”,“InstructionmanualforMitsubishiLimiservoX”andoperatethesewing

machinecorrectlyandsafely.

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

CONTENTS

USAGE PRECAUTION ……………………………………………… 1

1Lubrication(1)………………………………………………………………………… 1

2Lubrication(2)………………………………………………………………………… 1

3Lubricationcondition………………………………………………………………… 2

4Adjustmentoflubricationtotherotatinghook ………………………………… 2

5Installationofthebeltcover ……………………………………………………… 2

6Precautiononoperation …………………………………………………………… 2

HOW TO USE ……………………………………………… 3

1Installationofneedles ……………………………………………………………… 3

2Windingofthebobbinthread……………………………………………………… 3

3Selectionofthethread……………………………………………………………… 4

4Threadingofneedlethreads ……………………………………………………… 4

5Adjustmentoffeed(stitch)lengthandbackstitch……………………………… 5

6Settingofbobbins …………………………………………………………………… 5

7Threadingofbobbinthreads ……………………………………………………… 6

8Adjustmentofbobbinthreadstension…………………………………………… 6

9Balanceofthreadstension ………………………………………………………… 6

:Adjustmentofneedlethreadstension …………………………………………… 6

AAdjustmentofthepresserfootpressure………………………………………… 6

BTimingbetweentherotatinghookmotionandtheneedlemotion…………… 7

CAdjustmentofthefeeddogheight………………………………………………… 8

D

Relationshipbetweentherotatinghookmotionandthethreadtake-uplevermotion

… 9

ERelationshipbetweentherotatinghookmotionandtheopenermotion …… 9

FRelationshipbetweentheneedlemotionandthefeeddogmotion…………… 10

GSafetyclutch ………………………………………………………………………… 11

HAdjustmentofupperfeedlength(needleside) ………………………………… 12

IAdjustmentofforward/backwardfeedlength ………………………………… 12

JAdjustmentoftheoutsidepresserfootandtheinsidepresserfoot ………… 12

SPECIFICATIONS ……………………………………………… 14

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

1 Lubrication (1)

Filltheoilreservoirwithoilupto“H”mark.

Oillevelshouldbeperiodicallychecked.Ifoillevel

isfoundbelow“L”levelreplenishoilto“H”level.

Foroil,use“MC70M”speciedbyMitsubishi.

※Refer

MC70M：Specicgravity(15℃ )=0.86(g/cm3)

：Viscosity(40℃ )=10.9(mm2/s)

2 Lubrication (2)

Whenanewsewingmachineisusedforthe

rsttime,orsewingmachineleftoutofusefor

considerablylongtimeisusedagain,replenisha

suitableamountofoiltotheportionsindicatedby

arrowsinthebelowgure.

USAGE PRECAUTION

Oillevelmark

—1 —

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

USAGE PRECAUTION

3 Lubrication condition

Seedrippingofoilthroughtheoilsightwindowto

checkoilingconditionduringoperation.

Conrmthatoilhasbeendrainedfromtheoil

tankwhentheoperationisstopped.

Whendust,etc.accumulateintheoiltank,remove

therubberplugtoclean.

4 Adjustment of lubrication to the

rotating hook

5 Installation of the belt cover

1 . Installthebeltcoveronthemachinesideforsafety.Refertotheprovidedinstructiondocument

containedinthesamepackage.

2 . Installthebeltcoveronthemotorsideforsafety.

6 Precaution on operation

( 1 ) Whenthepoweristurnedonoro󱐯,keepfootawayfromthepedal.

( 2 ) Itshouldbenotedthatthebrakemaynotworkwhenthepowerisinterruptedorpowerfailure

occursduringsewingmachineoperation.

( 3 ) Sincedustinthecontrolboxmightcausemalfunctionorcontroltroubles,besuretokeepthe

controlboxcovercloseduringoperation.

( 4 ) Donotapplyamultimetertothecontrolcircuitforchecking,otherwisevoltageofmultimeter

mightdamagesemiconductorcomponentsinthecircuit.

Oilsight

window

Rubberplug

Adjusting

screw

Decrease Increase

Nut

—2 —

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

HOW TO USE

1 Installation of needles

Note: Before installing the needles, be sure to turn o󱐯 the power.

2 Winding of the bobbin thread

Note: When bobbin thread is wound, keep the presser foot lifted.

　Adjustment ●Tension of wound thread Slackwindingisrecommendedforpolyesterthreadand

nylonthread.

●Conically wound thread Movethethreadguidetowardsmallerdiameterofwound

threadlayer.

●Amount of wound thread Loosenthewindingamountadjustmentscrewtodecrease

threadwindingamountandtightenthescrewtoincrease

threadwindingamount.

Windingtension

adjustmentnut

Evenwinding

amountof80%

offullcapacity

Windingamount

adjustmentscrew

Threadguide

Double-Needle

Inserttheneedleuptothebottomofneedle

clampandtightenthescrewkeepingthe

longgroovesideofneedlefacetoface

Insuﬃcientinsertion

Gap

Longgroovesareopposite

Longgroove

leftside

Needledistorted

Single-needle

—3 —

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

HOW TO USE

3 Selection of the thread

Itisrecommendedtouse“S”twistthreadintheleftneedle(viewed

fromfront),and“Z”twistthreadintherightneedle.

Whendiscriminateuseofneedlethreadsisimpossible,use“Z”twist

threadinboththeneedles.

Forbobbinthread,“S”twistthreadaswellas“Z”twistthreadcanbe

used.

4 Threading of needle threads

1 . Passeachneedlethreadthroughthreadguide(A).

Note:Whenthinslipperythread(polyesterthreadorlament

thread,etc.)isused,

Passthethreadthroughthreadguide(B)aswell.

2 . Withthethreadtake-upleverlocatedattheuppermostposition,

passeachneedlethreadintheordershowninthefollowinggure.

LU2-4400

LU2-4400 : Needlepart

LU2-4420

LU2-4420(LU2-4400 : refertotheonlyleftthread)

to , to (Detail)

L12 L14 R10 R12

to (Detail)

L12 L14

Leadthethreadleftward Leadthethreadrightward

(Seedetailedﬁgure)

R1L1

R5R6

L8 L7

Leadthethread

rightward

Stwistthread

Ztwistthread

A B A AB

—4 —

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

HOW TO USE

5 Adjustment of feed (stitch)

length and backstitch

●Adjustmentoffeed(stitch)length…Adjustfeed

lengthbyturningthefeedlengthsettingdial

whiledepressingthereversesewinglever.

●Backstitch…Directionofstitchingcanbe

reversedbydepressingthereversesewing

lever.

6 Setting of bobbins

( 1 ) Pullout5cmthreadtailfrombobbins.

( 2 ) Putbobbinsintohooksinthedirectionasthe

followinggure.

Feedlengthsettingdial

Reversesewinglever

Bedslide

Hook

Bedslide

Thread

Hook

—5 —

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

7 Threading of bobbin threads

( 1 ) Putbobbinthreadintotheslit①,passunder

thelug②andextenditabovethebed.

( 2 ) Whileholdingtwoneedlethreadswithyour

lefthand,turnthepulleyonerotationwith

yourrighthand.Thebobbinthreadswill

comeupwhenneedlethreadsareliftedup

asshowninthegure.Needlethreadsand

bobbinthreadsshouldbealignedandled

backwardtogether.

Adjustment of bobbin threads tension

9 Balance of threads tension

Adjustment of needle threads tension

●Needlethreadstensionshouldbeadjustedon

thebasisofbobbinthreadstension.

●Adjustneedlethreadstensionbyturning

threadtensionnuts.

 Needlethreadstensioncanbealsoadjustedby

changingintensityandmovablerangeofthe

threadtake-upspringincaseofsewingthe

specialfabricandthread.

Adjustment of the presser foot pressure

Adjustthepresserfootpressureaccordingtothe

fabricbyturningthepressureadjustingscrew.

HOW TO USE

A○

B×

C×

Balancedtension

Tighttheneedlethreadtensionor

loosethebobbinthreadtension

Loosetheneedlethreadtensionor

tightthebobbinthreadtension

Threadtensionnut

Tighten

Loosen

Thread

①

②

Thread

Opener

Loosen Tighten

Threadtensionscrew

Pressureadjusting

screw

Strengthen Weaken

—6 —

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B Timing between the rotating

hook motion and the needle

motion

Incaseofdouble-needle,adjustrightandleft

timinginthesamewayatthesametime.

Note:Ifyouremovethepresserfoot,thethroat

plate,andthefeeddog,itmakeseasierto

adjust.

( 1 ) Setfeedlengthto6mm.

( 2 ) LoosenallscrewsⒶ,Ⓑ,Ⓒ.

Note:Becarefulnottodisengagethelarge

gearandthesmallgear.

( 3 ) Lifttheneedlebar2.4mmfromthelowest

position.Refertotimingmarksshowninthe

gure.

( 4 ) Slidethehooksaddlerightandleftsothat

thegapbetweenthetipofthehookandthe

scarfoftheneedleis0.05mmorlower.

( 5 ) TightenscrewsⒶ,Ⓑ.

 Note:BecarefulnottoovertightenscrewsⒷ.

( 6 ) Slidethelargegearrightandleftsothatthe

tipofthehookpositionisinthecenterofthe

needleandtightenscrewsⒸ.

Note:Checkthelargegearandthehook

saddleisn’tincontactanditsdistanceis

lessthan3mm.

( 7 ) Movethetipofthehooktotheneedleside

byturningthepulley.

( 8 ) Returnthemachineheadtotheoriginal

positionandadjusttheneedleguideposition

sothatitcomelightlyincontactwiththe

needle.

HOW TO USE

Tipof

thehook

0.05mmorlower

0.05mm

(a)Positionoftheneedlebar:

Thelowestposition

(b)Positionoftheneedlebar:

2.4mmliftedpositionfrom(a)

ScrewⒶ

ScrewⒷ

SetScrewⒸ

—7 —

From the library of Superior Sewing Machine & Supply LLC - www.supsew.com

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Mitsubishi Electric

Mitsubishi Electric PLK-J-CU-20 Bedienungsanleitung

Mitsubishi Electric

Mitsubishi Electric PLK-J10050R3 Bedienungsanleitung

Mitsubishi Electric

Mitsubishi Electric PLK-J-LAN Bedienungsanleitung

Mitsubishi Electric

Mitsubishi Electric LS2-1130 Bedienungsanleitung

Mitsubishi Electric

Mitsubishi Electric PLK-G5050 Bedienungsanleitung

Mitsubishi Electric

Mitsubishi Electric PLK-G2010R Bedienungsanleitung

Mitsubishi Electric

Mitsubishi Electric PLK-G10050R Bedienungsanleitung

Mitsubishi Electric

Mitsubishi Electric LY2-3750-B1T Bedienungsanleitung

Mitsubishi Electric

Mitsubishi Electric DY-253 Bedienungsanleitung

Mitsubishi Electric

Mitsubishi Electric PLK-G2008H Bedienungsanleitung

Beliebte Nähmaschine Handbücher anderer Marken

Riccar

Riccar RL634DE Bedienungsanleitung

Pfaff

Pfaff 3307-1 SERIES Bedienungsanleitung

Siruba

Siruba C007JP Bedienungsanleitung

Husqvarna Viking

Husqvarna Viking Designer SE Bedienungsanleitung

Singer

Singer 148-5 Bedienungsanleitung

IKEA

IKEA SY Bedienungsanleitung

Pfaff

Pfaff 571 Bedienungsanleitung

Singer

Singer 15-91 Bedienungsanleitung

Brother

Brother BB370 Bedienungsanleitung

Pegasus

Pegasus WT100 Series Bedienungsanleitung

Reliable

Reliable 7100DB Bedienungsanleitung

Pfaff

Pfaff 937 Bedienungsanleitung

Singer

Singer 6038 Bedienungsanleitung

Singer

Singer 413K Bedienungsanleitung

Pfaff

Pfaff 1471 E1 Bedienungsanleitung

Kenmore

Kenmore 16677 - Serger Sewing Machine Bedienungsanleitung

HIGHLEAD

HIGHLEAD GC2008-M Bedienungsanleitung

Singer

Singer 400W4 Bedienungsanleitung