Mitsubishi Electric LS2-1130 Bedienungsanleitung

A180E277P03

INSTRUCTION MANUAL

HIGH-SPEED SINGLE-NEEDLE LOCKSTITCH

INDUSTRIAL SEWING MACHINE

LS2-1130

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.

CONTENTS

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

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

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

3Lubricationcondition………………………………………………………………… 1

4Adjustmentoflubricationtotherotatinghook ………………………………… 1

5Adjustmentoftheoilpump………………………………………………………… 1

6Periodicalcleaning…………………………………………………………………… 2

7Installationofthebeltcover ……………………………………………………… 2

8Precautiononoperation …………………………………………………………… 2

HOW TO USE ……………………………………………… 3

1Installationoftheneedle …………………………………………………………… 3

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

3Threadingoftheneedlethread…………………………………………………… 4

4Adjustmentoffeed(stitch)lengthandbackstitch……………………………… 4

5Balanceofthreadstension ………………………………………………………… 4

6Adjustmentoftheneedlethreadtension………………………………………… 5

7Adjustmentofthebobbinthreadtension………………………………………… 5

8Adjustmentofthepresserfootpressure………………………………………… 5

9Adjustmentofthetimingtoopentensiondiscoftheneedlethreadtension

regulator……………………………………………………………………………… 5

SPECIFICATIONS ……………………………………………… 6

1Lubrication (1)

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

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

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

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

※Refer

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

  ：Viscosity(40℃ )=10.9(mm2/s)

Kneelifterpin

Drainoilscrew

Ⓗ Ⓛ

2Lubrication (2)

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

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

considerablylongtimeisusedagain,removethe

rubberplugandreplenishasuitableamountofoil

asshowninthegure.

Rubberplug

3Lubrication condition

Checkthattheoilsplashedtheoilsightwindow.

Oilsightwindow

4Adjustment of lubrication to the

rotating hook

Adjustthelubricationamountoftherotatinghook

byturningthescrew Ⓐ.

ScrewⒶ

Decrease Increase

5Adjustment of the oil pump

Fortheregularsewing,itisnotnecessaryfor

theadjustmentoftheoilpump,butincaseoflow

speedoperation,iftheoilsplashamountforthe

oilsightwindowonthemachinearmisreduced,

closetheoilbypassholeoftheoilpump.

Adjustingplate

Bypasshole

Standardgap

0.5to1.0

USAGE PRECAUTION

—1 —

6Periodical cleaning

1 . Machine

2 . Motor

Removedustfromthemotorltereveryoneortwomonths.(Continuedoperationwiththelter

cloggedwithlintordustmayoverheatthemotor.)

3 . Control Box

Removedustfromtheconnector.(Iftheconnectoriscoveredwithdust,themachinemight

malfunction.)

7Installation 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.

8Precaution 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.

USAGE PRECAUTION

Hook

Feeddog

Hook

Feedbar

Oilpumpscreen

●Removethethroatplateand

cleanthefeeddog.Reassembly

shouldbedonebyscrewingin

thescrew2-3rotationsbyhand

atrst,thentighteningthem

evenlyusingalong-shafted

screwdriver.

●Leanthemachineheadand

cleanthehookandremove

anydustand/orlintinsidethe

bobbincase.

●Leanthemachineheadand

removeanydustand/orlinton

theoilpumpscreen.

—2 —

1Installation of the needle

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

HOW TO USE

Inserttheneedleuptothebottomof

needleclampandtightenthescrew

keepingthelonggroovesidefacing

totheleft.

Insufficientinsertion Needledistorted

Gap

Longgroove

leftside Timingmark

forDB×1

Timingmark

forDP×17

Needlebar

Note：Ifthreadsnappingoccursduringreversesewingwith

polyesterthreads,itmaybeavoidedbyttingtheneedle

withthelonggrooveshiftedtothefrontside.Normally,

avoidttingtheneedlewiththegroovefacingbackward.

BothneedlesDP × 17and

DB × 1canbeused.

Usethetimingmarksas

showninthegure.

2Winding 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

—3 —

3Threading of the needle thread

Withthethreadtake-upleverlocatedattheuppermostposition,passtheneedlethreadintheorder

showninthefollowinggure.

HOW TO USE

①

②

③

④

⑤

⑥

⑦

⑧

⑨

⑩

⑪

Reversesewing

lever

Feedlength

settingdial

①

②

⑧

⑥

Thread

⑤

④

③

4Adjustment 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.

5Balance of threads tension

A○

Balancedtension

C×

Loosetheneedlethreadtensionor

tightthebobbinthreadtension

B×

Tighttheneedlethreadtensionor

loosethebobbinthreadtension

—4 —

6Adjustment of the needle

thread tension

●Theneedlethreadtensionshouldbeadjusted

onthebasisofthebobbinthreadtension.

●Adjusttheneedlethreadtensionbyturningthe

threadtensionnut.

 Theneedlethread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.

7Adjustment of the bobbin

thread tension

●Thebobbinthreadtensioncanbeadjustedby

turningthescrewⒶ.

8Adjustment of the presser foot

pressure

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

thefabricbyturningthepressureadjusting

screw.

●Sewingpressureshouldbeadjustedtothe

minimumrequiredstrength.

9Adjustment of the timing to

open tension disc of the needle

thread tension regulator

Adjusttimingwiththefollowingprocedureas

timingtoopenthetensiondisccanbeadjusted

fortheclearance(withinthelimitsof2to7mm)

ofthepresserfoot.

( 1 ) Removetherubberplugandloosenthescrew

Ⓐ.

( 2 ) Movethethreadtensionreleasingcamtothe

rightortheleft.

 Positionedtotheright…quick

 Positionedtotheleft…slow

( 3 ) TightenthescrewⒶafteropeningcondition

ofthethreadtensiondischasbeenchecked.

●Itisconvenienttooperatebyttingthesame

thicknessofplateastheclearanceofthe

presserfootyouintendtoloosenbeneaththe

presserfoot.

HOW TO USE

Threadtensionnut

Loosen

Tighten

ScrewⒶ

Threadtensionspring

Loosen

Tighten

Pressureadjustingscrew

Strengthen

Weaken

Screwdriver

Threadtensionreleasingcam

Rubberplug

ScrewⒶ

Presserbarlifter

Presserfoot

Upperthreadtensionregulator

Left Right

—5 —

SPECIFICATIONS

LS2-1130 Specications

Model

Specications LS2-1130-M0B LS2-1130-H0B LS2-1130-B0B

Application Medium-heavy Heavy Heavy

Max.sewingspeed(rpm) 4500 3500

Stitchlength(mm) 0to5 0to7

Needlebarstroke(mm) 30.5 35.0

Threadtake-upleverstroke(mm) 61.3 72.0

Feeddogheight(mm) 0.8 1.0 1.2

Presserfootstroke(mm)

Hand 6

Knee 13

Needle DB×1#14 DB×1#22

Hook(verticalrotatinghook) Standard Standardforheavy Large

Lubricationsystem Automaticlubrication

Beddimensions(mm) 475×178

Note:●Thebobbinshouldbeofhighqualityfreefromdeformation.

 ●Somematerialsand/orsewingconditionsmayrequirespecicationsotherthanthoselisted

above.

 ●Thesespecicationsaresubjecttochangeformachineimprovement.

—6 —

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