JUKI MF-7900D/UT59 Manuale utente

CAUTIONS FOR SAFETY

MF-7900,7900D/UT59

No.00

70003572

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 parts. Operators who actually

operate the machine and maintenance personnel who are involved in maintenance and repair of the machine

are strongly recommended to carefully read to fully understand the following SAFETY PRECAUTIONS

before using/maintaining the machine. The content of the SAFETY PRECAUTIONS includes items which

are not contained in the specications of your product.

The risk indications are classied into the following three different categories to help understand the meaning

of the labels. Be sure to fully understand the following description and strictly observe the instructions.

Warning label

❶

❷

❸

❶•Thereisthepossibilitythatslighttoseriousinjuryordeathmaybecaused.

 •Thereisthepossibilitythatinjurymaybecausedbytouchingmovingpart.

❷•Toperformsewingworkwithsafetyguard.

 •Toperformsewingworkwithsafetycover.

 •Toperformsewingworkwithsafetyprotectiondevice.

❸•BesuretoturnthepowerOFFbeforecarryingout"machine-headthreading",

"needlechanging","bobbinchanging"or"oilingandcleaning".

❸

❷

❶

Electrical-shock

dangerlabel

DANGER :

Thisindicationisgivenwherethereisanimmediatedangerofdeathorserousinjuryifthepersoninchargeoranythird

partymishandlesthemachineordoesnotavoidthedangeroussituationwhenoperatingormaintainingthemachine.

WARNING :

Thisindicationisgivenwherethereisapotentialityfordeathorseriousinjuryifthepersoninchargeoranythird

partymishandlesthemachineordoesnotavoidthedangeroussituationwhenoperatingormaintainingthemachine.

CAUTION :

Thisindicationisgivenwherethereisadangerofmediumtominorinjuryifthepersoninchargeoranythirdpar-

tymishandlesthemachineordoesnotavoidthedangeroussituationwhenoperatingormaintainingthemachine.

Itemsrequiringspecialattention.

Pictorialwarningindication

Thereisariskofinjuryifcontact-

ingamovingsection.

Pictorialwarning

indication

Beawarethatholdingthesewing

machineduringoperationcan

hurtyourhands.

Thereisariskofelectricalshockif

contactingahigh-voltagesection.

Thereisariskofentanglementin

thebeltresultingininjury.

Thereisariskofaburnifcontact-

ingahigh-temperaturesection.

Thereisariskofinjuryifyou

touchthebuttoncarrier.

Beawarethateyedeciencycan

becausedbylookingdirectlyatthe

laserbeam.

Indicationlabel

Thecorrectdirectionisindicated.

Thereisariskofcontactbetween

yourheadandthesewingma-

chine.

Connectionofaearthcableis

indicated.

TO ENSURE SAFE USE OF YOUR SEWING MACHINE

(I)Explanationofrisklevels

(II)

Explanationofpictorialwarningindicationsandwarninglabels

SAFETY PRECAUTIONS

 1. Whenitisnecessarytoopenthecontrolboxcontainingelectricalparts,besuretoturnthepower

offandwaitforveminutesormorebeforeopeningthecoverinordertopreventaccidentleadingto

electricalshock.

Accidentmeans"tocause

personalinjuryordeathor

damagetoproperty."

DANGER

CAUTION

Basicprecaution

 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specications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machineafterconsultationwithamedicalspecialist.

Safetydevicesandwarninglabels

 1. Besuretooperatethemachineafterverifyingthatsafetydevice(s)iscorrectlyinstalledinplaceand

worksnormallyinordertopreventaccident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visibleinordertopreventaccident

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modication

 1. Neverusethemachineforanyapplicationotherthan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.JUKI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accidentthatcanresultinpersonalinjuryor

death.JUKIassumesnoresponsibilityfordamagesorpersonalinjuryordeathresultingfromthema-

chinewhichhasbeenmodiedoraltered.

Educationandtraining

 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oper-

ation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

Turningthepoweroff: Turningthepowerswitchoff,thenremovingthepowerplugfromtheoutlet.

Thisappliestothefollowing.

 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accidentthat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thread-

ed,orchanging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reaccident.

 4. Besuretoturnthepoweroffwheneverthemachineisleftunattended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.

iii

PRECAUTIONSTOBETAKENINVARIOUSOPERATIONSTAGES

Transportation

 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.

 2. Besuretotakesufcientsafetymeasurestopreventfallingordropping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

breakageresultingfromunexpectedaccidentordropping.

Unpacking

 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

carefullyinordertopreventaccidentthatcanresultinpersonalinjuryordeath.

Installation

(I)Tableandtablestand

 1. BesuretouseJUKI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whicharenotJUKIgenuineones,

selectthetableandtablestandwhichareabletosupportthemachineweightandreactionforceduring

operation.

 2. Ifcastersaretted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.

(II)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reaccident.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starburstconnectioninordertopreventelectrical-shock,earth-leakageorreaccident.

 3. Besuretosecurelyconnecttheconnectorsinordertopreventelectrical-shock,earth-leakageorre

accident.Inaddition,besuretoremovetheconnectorwhileholdingitsconnectorsection.

(III)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

 1. Besuretousethespeciedratedmotor(JUKIgenuineproduct)inordertopreventaccidentcausedby

burnout.

 2. Ifacommerciallyavailableclutchmotorisusedwiththemachine,besuretoselectonewithanentan-

glementpreventivepulleycoverinordertoprotectagainstbeingentangledbytheV-belt.

Beforeoperation

 1. Besuretomakesurethattheconnectorsandcablesarefree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intothemovingsectionsofthemachineinordertopreventaccidentthatcanresult

inpersonalinjuryordeath.

  Inaddition,checktobesurethatthedirectionofrotationofthepulleyagreeswiththearrow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

adjusters,ifprovided,inordertoprotectagainstaccidentcausedbyabruptstartofthemachine.

Duringoperation

 1. Besurenottoputyourngers,hairorclothingclosetothemoving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injuryordeath.

 2. Besurenottoplaceyourngersnearthesurroundareaoftheneedleorinsidethethreadtake-uplever

coverwhenturningthepoweronorwhilethemachine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ngersoranyotherpartsofyourbodytobecaughtbetweenthemachine

andtablewhenremovingthemachinefromorreplacingitonthetableinordertopreventaccidentthat

canresultinpersonalinjuryordeath.

5. Besuretoturnthepoweroffandchecktobesurethatthemachineandmotorcompletelystopbeforere-

movingthebeltcoverandV-beltinordertopreventaccidentcausedbyabruptstartofthemachineormotor.

 6. Ifaservomotorisusedwiththemachine,themotordoesnotproducenoisewhilethemachineisatrest.

Besurenottoforgettoturnthepoweroffinordertopreventaccidentcaused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re

accidentbyoverheat.

Lubrication

 1. BesuretouseJUKIgenuineoilandJUKIgenuinegreasetothepartstobelubricated.

 2. Iftheoiladheresonyoureyeorbody,besuretoimmediatelywashitoffinordertopreventinamma-

tion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

 1. Inpreventionofaccidentcausedbyunfamiliarity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dened

intheinstructionmanual.BesuretouseJUKIgenuinepartswhenreplacinganyofthemachineparts.

JUKIassumesnoresponsibilityforanyaccidentcausedbyimproperrepairoradjustmentortheuseof

anypartotherthanJUKIgenuineone.

 2. Inpreventionofaccidentcausedbyunfamiliaritywiththemachineorelectrical-shockaccident,besure

toaskanelectricaltechnicianofyourcompanyorJUKI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cyl-

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loosenessaftercompletionofrepair,adjustment

andpartreplacement.

 5. Besuretoperiodicallycleanupthemachineduringitsdurationofuse.Besuretoturnthepoweroff

andverifythatthemachineandmotorstopcompletelybeforecleaningthemachineinordertoprevent

accident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operationand

contactJUKIorthedistributor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thefuseand

replacetheblownfusewithanewoneinordertopreventaccidentthat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

preventreaccidentofthemotor.

Operatingenvironment

 1. Besuretousethemachineundertheenvironmentwhichisnotaffectedbystrongnoisesource(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uctuatesbymorethan"ratedvoltage±10%"

inordertopreventaccidentcausedbymalfunctionofthemachine.

 3. Besuretoverifythattheair-drivendevicesuchasanaircylinderoperatesatthespeciedairpressure

beforeusingitinordertopreventaccidentcausedbymalfunctionofthemachine.

 4. Tousethemachinewithsafety,besuretouseitundertheenvironmentwhichsatisesthefollowing

conditions:

  Ambienttemperatureduringoperation 5°C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sufcientperiodoftimeuntilthereisnosign

ofwaterdropletinordertopreventaccidentcausedbybreakageormalfunctionoftheelectricalcompo-

nents.

 6. Besuretostopoperationwhenlightningashes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signalcondition,themachinemaygeneratenoiseintheTVorradio.Ifthis

occurs,usetheTVorradiowithkeptwellawayfromthemachine.

 8. Inordertoensuretheworkenvironment,locallawsandregulationsinthecountrywherethesewing

machineisinstalledshallbefollowed.

Inthecasethenoisecontrolisnecessary,anearprotectororotherprotectivegearshouldbewornac-

cordingtotheapplicablelawsandregulations.

 9. Disposalofproductsandpackagesandtreatmentofusedlubricatingoilshouldbecarriedoutproperly

accordingtotherelevantlawsofthecountryinwhichthesewingmachineisused.

CAUTION BEFORE OPERATION

• BesuretolltheoilholewithoildesignatedbyJUKIbeforeuse.

• Cleanthesewingmachinethoroughlybeforeusingitforthersttime.

• Removealldustcollectedonthesewingmachineduringthetransportation.

• Conrmthatthevoltageandphasearecorrect.

• Conrmthatthepowerplugisproperlyconnected.

• Neverusethesewingmachineinthestatewherethevoltagetypeisdifferentfromthedesignatedone.

• Thedirectionofrotationofthesewingmachineisclockwiseasobservedfromthepulleyside.Becareful

nottorotateitinreversedirection.

• Whenoperatingthesewingmachine,turnONthepowerswitchafterproperlysettingtheheadonthetable.

• Fortherstmonthafterset-up,usethemachineatareducedsewingspeedof5,000sti/minorless.

(4,000sti/minorlessfortheMF-7900/UT59)

• Operatethepulleyafterthesewingmachinehastotallystopped.

WARNING :

Toavoidmalfunctionanddamageofthemachine,conrmthefollowing.

Precautionstobetakensoastouse

theMF-7900/UT59moresafely

 1. To prevent accidents caused by electric shock, never open the motor control box cover or

touchthecomponentsinsidethecontrolboxwhilethepowerswitchisON.

 1. Never bring your ngers under the needle whenthe power switch is turned ON or the ma-

chineisinoperation.

 2.Neverbringyourngers,hairorclothesclosetothepulleyandneedleorplaceanythingon

thepulleyandundertheneedlewhilethemachineisinoperation.

 3.Neveroperatethemachinewiththesafetydevicessuchasbeltcover,needlebarthreadtake-

upcover,ngerguard,eyeguardcover,etc.removed.

 4. Besuretoturn OFFthepowerandperform theworkafter ascertainingthatthesewingma-

chinedoesnotrunevenwhenthestartingpedalisdepressedincaseofchecking,adjusting,

cleaning,threadingorreplacingtheneedleofthesewingmachine.

 5. Neveroperatethesewingmachinewiththegroundwireforthepowersupplyremovedsoas

toensuresafety.

 6. BesuretoturnOFFthepowerswitchinadvanceincaseofinserting/removingthepowerplug.

 7. Intimeofthunderandlightning,stopyourworkanddisconnectthepowerplugfromthere-

ceptaclesoastoensuresafety.

 8. Whenyoumovethesewingmachinefromacoldplacedirectlytoawarmplace,dewconden-

sationmayresult.TurnONthepowertothemachineafteryouhaveconrmedthatthereisno

fearofdewcondensation.

 9. Incaseofmaintenance,inspection,orrepair,besuretoturnOFFthepowerswitchandcon-

firm that the sewing machine and the motor have completely stopped before starting the

work.(Incaseof the clutch motor,itcontinues rotating for a while bytheinertiaeven after

turningOFFthepowerswitch.So,becareful.)

 10.

ThisInstructionManualistheInstructionManualforMF-7900/UT59.RefertotheInstructionMan-

ualfortheMF-7900(D)andUT57fortheoperatingprocedurewhichisnotincludedinthismanual.

 11. Thisproductisaprecisioninstrument,andbeverycarefulnottosplashwateroroilonit,or

giveashocktoitbydropping.

Inaddition,beawarethatthesafetydevicessuchasthe"eyeprotectioncover"and"ngerguard"aresome-

timesomittedinthesketches,illustrationsandguresincludedintheInstructionManualfortheexplanation's

sake.Inthepracticaluse,neverremovethosesafetydevices.

CAUTION

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