JUKI LK-1900BN User manual
LK-1900BN Series
FOR THE USE OF MACHINE
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NOTE : In order to set up the sewing machine correctly and use it safely, be sure to read the
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by entering the below-stated URL or by scanning the QR code shown on the right.
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No.00
40194087
i
i
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 specications of your product.
The risk indications are classied 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•Thereisthepossibilitythatslighttoseriousinjuryordeathmaybecaused.
•Thereisthepossibilitythatinjurymaybecausedbytouchingmovingpart.
❷•Toperformsewingworkwithsafetyguard.
•Toperformsewingworkwithsafetycover.
•Toperformsewingworkwithsafetyprotectiondevice.
❸•BesuretoturnthepowerOFFbeforecarryingout"machine-headthreading",
"needlechanging","bobbinchanging"or"oilingandcleaning".
❸
❷
❶
Electrical-shock
dangerlabel
DANGER :
Thisindicationisgivenwherethereisanimmediatedangerofdeathorserousinjuryifthepersoninchargeoranythird
partymishandlesthemachineordoesnotavoidthedangeroussituationwhenoperatingormaintainingthemachine.
WARNING :
Thisindicationisgivenwherethereisapotentialityfordeathorseriousinjuryifthepersoninchargeoranythird
partymishandlesthemachineordoesnotavoidthedangeroussituationwhenoperatingormaintainingthemachine.
CAUTION :
Thisindicationisgivenwherethereisadangerofmediumtominorinjuryifthepersoninchargeoranythirdpar-
tymishandlesthemachineordoesnotavoidthedangeroussituationwhenoperatingormaintainingthemachine.
Itemsrequiringspecialattention.
Pictorialwarningindication
Thereisariskofinjuryifcontact-
ingamovingsection.
Pictorialwarning
indication
Beawarethatholdingthesewing
machineduringoperationcan
hurtyourhands.
Thereisariskofelectricalshockif
contactingahigh-voltagesection.
Thereisariskofentanglementin
thebeltresultingininjury.
Thereisariskofaburnifcontact-
ingahigh-temperaturesection.
Thereisariskofinjuryifyou
touchthebuttoncarrier.
Beawarethateyedeciencycan
becausedbylookingdirectlyatthe
laserbeam.
Indicationlabel
Thecorrectdirectionisindicated.
Thereisariskofcontactbetween
yourheadandthesewingma-
chine.
Connectionofaearthcableis
indicated.
TO ENSURE SAFE USE OF YOUR SEWING MACHINE
(I)Explanationofrisklevels
(II)
Explanationofpictorialwarningindicationsandwarninglabels
ii
ii
SAFETY PRECAUTIONS
1. Whenitisnecessarytoopenthecontrolboxcontainingelectricalparts,besuretoturnthepower
offandwaitforveminutesormorebeforeopeningthecoverinordertopreventaccidentleadingto
electricalshock.
Accidentmeans"tocause
personalinjuryordeathor
damagetoproperty."
DANGER
CAUTION
Basicprecaution
1. Besuretoreadtheinstructionmanualandotherexplanatorydocumentssuppliedwithaccessoriesof
themachinebeforeusingthemachine.Carefullykeeptheinstructionmanualandtheexplanatorydocu-
mentsathandforquickreference.
2. Thecontentofthissectionincludesitemswhicharenotcontainedinthespecicationsofyourproduct.
3. Besuretowearsafetygogglestoprotectagainstaccidentcausedbyneedlebreakage.
4. Thosewhouseaheartpacerhavetousethemachineafterconsultationwithamedicalspecialist.
Safetydevicesandwarninglabels
1. Besuretooperatethemachineafterverifyingthatsafetydevice(s)iscorrectlyinstalledinplaceand
worksnormallyinordertopreventaccidentcausedbylackofthedevice(s).
2. Ifanyofthesafetydevicesisremoved,besuretoreplaceitandverifythatitworksnormallyinorderto
preventaccidentthatcanresultinpersonalinjuryordeath.
3. Besuretokeepthewarninglabelsadheredonthemachineclearlyvisibleinordertopreventaccident
thatcanresultinpersonalinjuryordeath.Ifanyofthelabelshasstainedorcomeunstuck,besureto
changeitwithanewone.
Applicationandmodication
1. Neverusethemachineforanyapplicationotherthanitsintendedoneandinanymannerotherthanthat
prescribedintheinstructionmanualinordertopreventaccidentthatcanresultinpersonalinjuryor
death.JUKIassumesnoresponsibilityfordamagesorpersonalinjuryordeathresultingfromtheuseof
themachineforanyapplicationotherthantheintendedone.
2. Nevermodifyandalterthemachineinordertopreventaccidentthatcanresultinpersonalinjuryor
death.JUKIassumesnoresponsibilityfordamagesorpersonalinjuryordeathresultingfromthema-
chinewhichhasbeenmodiedoraltered.
Educationandtraining
1. Inordertopreventaccidentresultingfromunfamiliaritywiththemachine,themachinehastobeused
onlybytheoperatorwhohasbeentrained/educatedbytheemployerwithrespecttothemachineoper-
ationandhowtooperatethemachinewithsafetytoacquireadequateknowledgeandoperationskill.To
ensuretheabove,theemployerhastoestablishaneducation/trainingplanfortheoperatorsandedu-
cate/trainthembeforehand.
Itemsforwhichthepowertothemachinehastobeturnedoff
Turningthepoweroff: Turningthepowerswitchoff,thenremovingthepowerplugfromtheoutlet.
Thisappliestothefollowing.
1. Besuretoimmediatelyturnthepoweroffifanyabnormalityorfailureisfoundorinthecaseofpower
failureinordertoprotectagainstaccidentthatcanresultinpersonalinjuryordeath.
2. Toprotectagainstaccidentresultingfromabruptstartofthemachine,besuretocarryoutthefollow-
ingoperationsafterturningthepoweroff.Forthemachineincorporatingaclutchmotor,inparticular,
besuretocarryoutthefollowingoperationsafterturningthepoweroffandverifyingthatthemachine
stopscompletely.
2-1. Forexample,threadingthepartssuchastheneedle,looper,spreaderetc.whichhavetobethread-
ed,orchangingthebobbin.
2-2. Forexample,changingoradjustingallcomponentpartsofthemachine.
2-3. Forexample,wheninspecting,repairingorcleaningthemachineorleavingthemachine.
3. Besuretoremovethepowerplugbyholdingtheplugsectioninsteadofthecordsectioninordertopre-
ventelectrical-shock,earth-leakageorreaccident.
4. Besuretoturnthepoweroffwheneverthemachineisleftunattendedbetweenworks.
5. Besuretoturnthepoweroffinthecaseofpowerfailureinordertopreventaccidentresultingofbreak-
ageofelectricalcomponents.
iii
iii
PRECAUTIONSTOBETAKENINVARIOUSOPERATIONSTAGES
Transportation
1. Besuretoliftandmovethemachineinasafemannertakingthemachineweightinconsideration.Refer
tothetextoftheinstructionmanualforthemassofthemachine.
2. Besuretotakesufcientsafetymeasurestopreventfallingordroppingbeforeliftingormovingthe
machineinordertoprotectagainstaccidentthatcanresultinpersonalinjuryordeath.
3. Oncethemachinehasbeenunpacked,neverre-packitfortransportationtoprotectthemachineagainst
breakageresultingfromunexpectedaccidentordropping.
Unpacking
1. Besuretounpackthemachineintheprescribedorderinordertopreventaccidentthatcanresultin
personalinjuryordeath.Inthecasethemachineiscrated,inparticular,besuretocarefullychecknails.
Thenailshavetoberemoved.
2. Besuretocheckthemachineforthepositionofitscenterofgravityandtakeitoutfromthepackage
carefullyinordertopreventaccidentthatcanresultinpersonalinjuryordeath.
Installation
(I)Tableandtablestand
1. BesuretouseJUKIgenuinetableandtablestandinordertopreventaccidentthatcanresultinper-
sonalinjuryordeath.IfitisinevitabletouseatableandtablestandwhicharenotJUKIgenuineones,
selectthetableandtablestandwhichareabletosupportthemachineweightandreactionforceduring
operation.
2. Ifcastersarettedtothetablestand,besuretousethecasterswithalockingmechanismandlock
themtosecurethemachineduringtheoperation,maintenance,inspectionandrepairinordertoprevent
accidentthatcanresultinpersonalinjuryordeath.
(II)Cableandwiring
1. Besuretopreventanextraforcefrombeingappliedtothecableduringtheuseinordertoprevent
electrical-shock,earth-leakageorreaccident.Inaddition,ifitisnecessarytocableneartheoperating
sectionsuchastheV-belt,besuretoprovideaspaceof30mmormorebetweentheoperatingsection
andthecable.
2. Besuretoavoidstarburstconnectioninordertopreventelectrical-shock,earth-leakageorreaccident.
3. Besuretosecurelyconnecttheconnectorsinordertopreventelectrical-shock,earth-leakageorre
accident.Inaddition,besuretoremovetheconnectorwhileholdingitsconnectorsection.
(III)Grounding
1. Besuretohaveanelectricalexpertinstallanappropriatepowerpluginordertopreventaccidentcaused
byearth-leakageordielectricstrengthvoltagefault.Inaddition,besuretoconnectthepowerplugtothe
groundedoutletwithoutexceptions.
2. Besuretogroundtheearthcableinordertopreventaccidentcausedbyearthleakage.
(IV)Motor
1. Besuretousethespeciedratedmotor(JUKIgenuineproduct)inordertopreventaccidentcausedby
burnout.
2. Ifacommerciallyavailableclutchmotorisusedwiththemachine,besuretoselectonewithanentan-
glementpreventivepulleycoverinordertoprotectagainstbeingentangledbytheV-belt.
Beforeoperation
1. Besuretomakesurethattheconnectorsandcablesarefreefromdamage,dropoutandloosenessbe-
foreturningthepoweroninordertopreventaccidentresultinginpersonalinjuryordeath.
2. Neverputyourhandintothemovingsectionsofthemachineinordertopreventaccidentthatcanresult
inpersonalinjuryordeath.
Inaddition,checktobesurethatthedirectionofrotationofthepulleyagreeswiththearrowshownon
pulley.
3. Ifthetablestandwithcastersisused,besuretosecurethetablestandbylockingthecastersorwith
adjusters,ifprovided,inordertoprotectagainstaccidentcausedbyabruptstartofthemachine.
Duringoperation
1. Besurenottoputyourngers,hairorclothingclosetothemovingsectionssuchasthehandwheel,
handpulleyandmotororplacesomethingnearthosesectionswhilethemachineisinoperationinorder
topreventaccidentcausedbyentanglementthatcanresultinpersonalinjuryordeath.
2. Besurenottoplaceyourngersnearthesurroundareaoftheneedleorinsidethethreadtake-uplever
coverwhenturningthepoweronorwhilethemachineisinoperationinordertopreventaccidentthat
canresultinpersonalinjuryordeath.
3. Themachinerunsatahighspeed.Neverbringyourhandsnearthemovingsectionssuchaslooper,
spreader,needlebar,hookandclothtrimmingknifeduringoperationinordertoprotectyourhands
againstinjury.Inaddition,besuretoturnthepoweroffandchecktobesurethatthemachinecomplete-
lystopsbeforechangingthethread.
4. Becarefulnottoallowyourngersoranyotherpartsofyourbodytobecaughtbetweenthemachine
andtablewhenremovingthemachinefromorreplacingitonthetableinordertopreventaccidentthat
canresultinpersonalinjuryordeath.
iv
iv
5. Besuretoturnthepoweroffandchecktobesurethatthemachineandmotorcompletelystopbeforere-
movingthebeltcoverandV-beltinordertopreventaccidentcausedbyabruptstartofthemachineormotor.
6. Ifaservomotorisusedwiththemachine,themotordoesnotproducenoisewhilethemachineisatrest.
Besurenottoforgettoturnthepoweroffinordertopreventaccidentcausedbyabruptstartofthemotor.
7. Neverusethemachinewiththecoolingopeningofthemotorpowerboxshieldedinordertopreventre
accidentbyoverheat.
Lubrication
1. BesuretouseJUKIgenuineoilandJUKIgenuinegreasetothepartstobelubricated.
2. Iftheoiladheresonyoureyeorbody,besuretoimmediatelywashitoffinordertopreventinamma-
tionorirritation.
3. Iftheoilisswallowedunintentionally,besuretoimmediatelyconsultamedicaldoctorinordertopre-
ventdiarrheaorvomiting.
Maintenance
1. Inpreventionofaccidentcausedbyunfamiliaritywiththemachine,repairandadjustmenthastobe
carriedoutbyaservicetechnicianwhoisthoroughlyfamiliarwiththemachinewithinthescopedened
intheinstructionmanual.BesuretouseJUKIgenuinepartswhenreplacinganyofthemachineparts.
JUKIassumesnoresponsibilityforanyaccidentcausedbyimproperrepairoradjustmentortheuseof
anypartotherthanJUKIgenuineone.
2. Inpreventionofaccidentcausedbyunfamiliaritywiththemachineorelectrical-shockaccident,besure
toaskanelectricaltechnicianofyourcompanyorJUKIordistributorinyourareaforrepairandmainte-
nance(includingwiring)ofelectricalcomponents.
3. Whencarryingoutrepairormaintenanceofthemachinewhichusesair-drivenpartssuchasanaircyl-
inder,besuretoremovetheairsupplypipetoexpelairremaininginthemachinebeforehand,inorderto
preventaccidentcausedbyabruptstartoftheair-drivenparts.
4. Besuretocheckthatscrewsandnutsarefreefromloosenessaftercompletionofrepair,adjustment
andpartreplacement.
5. Besuretoperiodicallycleanupthemachineduringitsdurationofuse.Besuretoturnthepoweroff
andverifythatthemachineandmotorstopcompletelybeforecleaningthemachineinordertoprevent
accidentcausedbyabruptstartofthemachineormotor.
6. Besuretoturnthepoweroffandverifythatthemachineandmotorstopcompletelybeforecarryingout
maintenance,inspectionorrepairofthemachine.(Forthemachinewithaclutchmotor,themotorwill
keeprunningforawhilebyinertiaevenafterturningthepoweroff.So,becareful.)
7. Ifthemachinecannotbenormallyoperatedafterrepairoradjustment,immediatelystopoperationand
contactJUKIorthedistributorinyourareaforrepairinordertopreventaccidentthatcanresultinper-
sonalinjuryordeath.
8. Ifthefusehasblown,besuretoturnthepoweroffandeliminatethecauseofblowingofthefuseand
replacetheblownfusewithanewoneinordertopreventaccidentthatcanresultinpersonalinjuryor
death.
9. Besuretoperiodicallycleanuptheairventofthefanandinspecttheareaaroundthewiringinorderto
preventreaccidentofthemotor.
Operatingenvironment
1. Besuretousethemachineundertheenvironmentwhichisnotaffectedbystrongnoisesource(electro-
magneticwaves)suchasahigh-frequencywelderinordertopreventaccidentcausedbymalfunctionof
themachine.
2. Neveroperatethemachineinanyplacewherethevoltageuctuatesbymorethan"ratedvoltage±10%"
inordertopreventaccidentcausedbymalfunctionofthemachine.
3. Besuretoverifythattheair-drivendevicesuchasanaircylinderoperatesatthespeciedairpressure
beforeusingitinordertopreventaccidentcausedbymalfunctionofthemachine.
4. Tousethemachinewithsafety,besuretouseitundertheenvironmentwhichsatisesthefollowing
conditions:
Ambienttemperatureduringoperation 5°Cto35°C
Relativehumidityduringoperation 35%to85%
5. Dewcondensationcanoccurifbringingthemachinesuddenlyfromacoldenvironmenttoawarmone.
So,besuretoturnthepoweronafterhavingwaitedforasufcientperiodoftimeuntilthereisnosign
ofwaterdropletinordertopreventaccidentcausedbybreakageormalfunctionoftheelectricalcompo-
nents.
6. Besuretostopoperationwhenlightningashesforthesakeofsafetyandremovethepowerplugin
ordertopreventaccidentcausedbybreakageormalfunctionoftheelectricalcomponents.
7. Dependingontheradiowavesignalcondition,themachinemaygeneratenoiseintheTVorradio.Ifthis
occurs,usetheTVorradiowithkeptwellawayfromthemachine.
8. Inordertoensuretheworkenvironment,locallawsandregulationsinthecountrywherethesewing
machineisinstalledshallbefollowed.
Inthecasethenoisecontrolisnecessary,anearprotectororotherprotectivegearshouldbewornac-
cordingtotheapplicablelawsandregulations.
9. Disposalofproductsandpackagesandtreatmentofusedlubricatingoilshouldbecarriedoutproperly
accordingtotherelevantlawsofthecountryinwhichthesewingmachineisused.
v
Precautions to be taken so as to use the LK-1900BN Series
more safely
1. Toavoidelectricalshockhazards,neitheropenthecoveroftheelectricalboxforthemo-
tornortouchthecomponentsmountedinsidetheelectricalbox.
2. After changing the pattern, make sure the needle entry point. If the pattern is protruded
from the work clamp feet, the needle will interfere with the work clamp feet during sewing,
and it is dangerous due to the needle breakage or the like.
3. Do not turn OFF the power in a state that the needle is lowered. Wiper may break the nee-
dle.
1. IncasenothingisdisplayedintheoperationpanelevenwhenthepowerswitchisturnedON,
turnOFFthepowerswitchandcheckthepowervoltageandphase.
2. Topreventpersonalinjuryordeath,neverputngersintothethreadtake-uplever,workclamp,
workclampmechanismandthreadtake-upcover,andunderorneartheclothcuttingknifeand
needle when turning on the power switch or while the machine is in operation.
3. To protect against possible accidents due to abrupt startup of the machine, turn OFF the power
switchbeforetiltingthemachineheadorremovingthemotorcover.
4. Soastopreventpossibleaccidentscausedbyabruptstartofthesewingmachine,depressthe
start switch after ascertaining that there is no interfering thing under the needle when winding
the bobbin thread. In addition, do not allow hair to be close to the bobbin winder while it is in
operation.
5. Feeding frame automatically comes down when pattern is changed, ready key is ON, Presser
switchisON,intermediatepresserbuttonisONandbobbinwinderbuttonisON.Toprevent
possibleaccidentscausedbyabruptstartofthesewingmachine,neverplaceyourngersun-
der the feeding frame.
6. Toavoidpersonalinjury,neverbringyourngers,hairorclothingclosetoVbelt,clothcutting
knifeormotorduringoperation,andneverplaceanythingonanyoftheseparts.
7. Toavoidpersonalinjury,neveroperatethemachinewiththemotorcover,eyeprotectioncover,
oranyothersafetydevicesremoved.
8.Topreventpersonalinjuryordeath,donotoperatethesewingmachinewithitscoversremoved.
9.Theoperationpaneldisplayssafetywarnings.Itisnecessarythereforetorstverifynormaldis-
play on the panel when the power switch is turned on, before operating the sewing machine.
10. Topreventpersonalinjuryordeath,donotpressthehandpulleywhilethesewingmachineisin
operation.
11. Toavoidpersonalinjury,becarefulnevertoallowyourngerstogoinsidethemachinewhen
tilting or raising the machine head.
12. To prevent possible accidents dueto electric shocks or damaged electrical component(s), al-
ways turn OFF the power switch before connecting or disconnecting the power plug.
13. During thunder and lightning storms, stop your work and disconnect the power from the outlet
toensuresafetyandpreventpossibleaccidentsduetodamagedelectricalcomponent(s).
vi
14. Ifthemachineissuddenlymovedfromacoldplacetoawarmplace,dewcondensationmay
result.Ifthisoccurs,besuretoconrmthattherearenopotentiallydangerouswaterdrops
inthemachinebeforeturningitoninordertopreventpossibleaccidentsduetodamaged
electricalcomponent(s).
15. In theeventofapowerfailure,besuretoturnOFFthepowertothemachinetoprotect
against damaged electrical components.
16. When the sewing machine is used without a break for many hours, the temperature of a part
ofthemachinebodyortherearsideofoperationpanelriseshigherby15˚Cthantheenvi-
ronmentaltemperature,andyoumayfeeltheheatfromthepart.However,thisphenomenon
is not abnormal, and does not affect the components or the like.
17. Do not lubricate the machine oil to the places other than the oil tank and the hook section.
Thegreaselubricatingsystemexceptthehooksectionisemployedforthissewingmachine,
andthegreaseowsoutwhenlubricatingthemachineoilresultinginworn-outofthecom-
ponents.
18. Be careful of handling this product so as not to pour water or oil, shock by dropping, and the
like since this product is a precision instrument.
19. Inadomesticenvironmentthisproductmaycauseradiointerference,inwhichcasetheuser
mayberequiredtomakecorrectiveactions.
20. Inordertopreventpossibleaccidentsduetoagroundfault,theearthcableshouldbeprop-
erly grounded.
21.ForthecontrolboxtobeconnectedtotheLK-1900BSeries,usetheexclusivecontrolbox
for the LK-1900B Series.
vii
Safety devices and warning labels
In addition, be aware that the safety devices such as the "eye protection cover"
and"ngerguard"aresometimesomittedinthesketches,illustrationsandgures
included in the Instruction Manual for the explanation's sake. In the practical use,
never remove those safety devices.
Warning label (Refer
to the
warning
label on
page i.)
The label gives the min-
imum precautions to be
taken when operating the
sewing machine.
Warning label
against pinching
This label warns
thatngersor
other parts of
human body can
be pinched in the
thread take-up lever.
Power switch
This is a switch for discon-
necting the power unit of the
sewing machine from the
power supply.
Power switch (EU type)
This switch is
used for dis-
connecting the
power unit of
the sewing ma-
chine from the
power supply. It
is also used as
the emergency
stop switch.
Selection of the power
switch
UsetheIEC60204-1-compli-
ant power switch with rated
current of 20 A or more and
short-circuit breaking capac-
ity of 120 A or more, which
has the operating section in
red against the yellow back-
ground.
Eye protection cover
This is a cover for pro-
tecting eyes from being
injured by a broken
needle.
Finger guard
This is a cover for pre-
venting contact between
ngersandtheneedle.
Motor cover
This is a cover for pre-
venting contact between
the human body and the
motor.
Thread take-up
lever cover
This is a cover for
preventing contact
between the human
body and the thread
take-up lever.
Warning label
against pinching
This label warns
that hands can be
pinched under the
sewing machine.
Electri-
cal-shock
danger label
(EU type)
(Refer to
"Electri-
cal-shock
danger
label" on
page i.)
In order to
protect against
electrical
shock, safety
precautions
to be taken to
avoid danger
are written on
this label.
CAUTION
viii
Precautions to be taken so as to use the LK-1903BN/BR35 more safely
1. To avoidelectricshockhazards,neithertouchthemotororthebuttonfeeder,noropenthe
controlboxcover,andnortouchcomponentsmountedinsidethecontrolboxwhilethepower
switch is turned ON.
2. Usethemachineunderthecorrectvoltagesetting.
1. Toavoidpersonalinjuries,exercisecarenottoallowyourngers,etc.tobecaughtinthebutton
carrier acting to supply buttons during operating the machine.
2. Donotusethebuttonsotherthanthosespeciedinthespecicationesofthismachine.
3. Be sure to use the button carrier and the pattern suitable for the buttons to be used.
4. After changing the shape of button, the pattern or enlargement/reduction of the sewing size,
make sure of the needle entry point without fail.
5. Soastopreventpossibleaccidentscausedbyabruptstartofthesewingmachine,depressthe
pedal after ascertaining that there is no interfering thing under the needle when winding the bob-
bin thread.
6. Use the feed plate suitable for the buttons to be used.
7. When tilting the sewing machine, make sure that the button carrier is located at the origin posi-
tion(thepositionwherethebuttonpositionisdetermined.).Ifnot,turnspinneroscillatingarm
motor knob ❶until the carrier is brought to its origin.
8. When Error “4” indicating an occurrence of a spinner oscillating arm failure or Error “5” indicat-
inganoccurrenceofanindexunitfailureisgiven,theresetswitchwillbeinoperativeinorderto
protect the mechanical components. In this case, turn OFF the power to the machine once, and
then re-turn ON the power.
9. Thismachineisequippedwiththecontinuouscyclesewingfeature.Whenyoukeepdepressing
the pedal, therefore, the buttons will be continuously fed from the button feeder. So, be careful.
10. If tighteningtoormlyscrewsofsuchcomponentsasthefeedplateandtheadjustingplate
which are made of resin, the resin breakage may occur. So, be careful.
11. Applygreaseonthewormgearandcamperiodically(everysixmonths).
12. The work attachment comes in two different types, the standard type and the large-button type
(separateorder).Wheneveryouhavereplacedtheworkattachment,besuretoadjustthenepo-
sitioningcompletionswitch.(Referto"V.11.(2) Adjustingthenepositioningcompletionswitch
(RFIN)"INSTRUCTIONMANUALforLK-1903BN/BR35p.22.)
13. Ifabuttonclogsintheindexunit,turnrstmanualspinneroscillatingshaft❷counterclockwise
usingaslitscrewdriveruntilitisreleased.
14. Sensitivityofthebuttonfeederisverydelicate,sobesuretoadjustitcarefully.
15. Connecttheconnectorswhilecheckingthecorrectdirectionoftherespectiveconnectors.
16. When the operation panel is installed on the top surface of the table, pass the cable of the opera-
tionpaneltotherearfaceofthetablethroughthetableholewhereBRdevicecableiswired.
17. Be careful of handling this product so as not to pour water or oil, shock by dropping, and the like
since this product is a precision instrument.
18. In a domesticenvironmentthisproductmaycauseradiointerference,inwhichcasetheuser
mayberequiredtomakecorrectiveactions.
19. Beawarethatthebuttonclampdevicecomesdownbyitsownweightwhenyouturnthepower
off.Besurenottoplaceyourhandsorngersunderittopreventinjury.
❷
❶
ix
Warning label
against pinching
This label indicates
that there is a risk
of contact between
handsandngers
and the button carrier.
Warning label
(Refer
to the
warning
label on
page i.)
The label gives
the minimum
precautions to
be taken when
operating the
sewing machine.
Safety devices and warning labels
Eye protection cover
This is a cover for
preventing eye injury
duetoyingpieces
of button broken by
needle breakage.
Finger guard
This is a cover for
preventing contact
betweenngers
and the needle.
Power switch
This is a switch for discon-
necting the power unit of
the sewing machine from
the power supply.
Power switch (EU type)
This switch is used
for disconnecting
the power unit of
the sewing machine
from the power
supply. It is also
used as the emer-
gency stop switch.
Selection of the power
switch
UsetheIEC60204-1-compli-
ant power switch with rated
current of 20 A or more
and short-circuit breaking
capacity of 120 A or more,
which has the operating
section in red against the
yellow background.
Warning label
(Refer
to the
warning
label on
page i.)
The label gives
the minimum
precautions to
be taken when
operating the
sewing machine.
Motor cover
This is a cover for
preventing contact be-
tween the human body
and the motor.
Thread take-up lever cover
This is a cover for prevent-
ing contact between the
human body and the thread
take-up lever.
Electrical-shock
danger label
(EU
type)
(Refer to
"Electri-
cal-shock
danger
label" on
page i.)
In order to protect
against electrical
shock, safety pre-
cautions to be taken
to avoid danger are
written on this label.
BR35
Warning label
against pinching
This label warns that
ngersorotherparts
of human body can be
pinched in the thread
take-up lever.
Electrical-shock
danger label
(EU
type)
(Refer to
"Electri-
cal-shock
danger
label" on
page i.)
In order to protect
against electrical
shock, safety pre-
cautions to be taken
to avoid danger are
written on this label.
In addition, be aware that the safety devices such as the "eye protection cover"
and"ngerguard"aresometimesomittedinthesketches,illustrationsandgures
included in the Instruction Manual for the explanation's sake. In the practical use,
never remove those safety devices.
CAUTION
x
ENGLISH
DECLARATION OF INCORPORATION OF PARTLY COMPLETED MACHINERY
We hereby declare that the sewing machine (sewing head) described below ;
1. Must not be put into service until the machinery to which it is incorporated has been declared in
conformity with provisions of the Machinery Directive 2006/42/EC,and
2. Conforms to the essential requirements of the Machinery Directive 2006/42/EC, described in the
technical documentation,and
3. To be prepared with above technical documentation compiled in accordance with part B of Annex
VII,and
4. Also to conform to the RoHS Directive 2011/65/EU
5. Relevant information on which should be transmitted in response to a reasoned request by the
national authorities,by the electronic method or other according to the request.
Applied harmonized standards, in particular :
EN ISO12100, EN ISO10821, EN 50581
Manufacturer :
JUKI CORPORATION
2-11-1, Tsurumaki, Tama-shi, Tokyo, Japan
Model
Description Industrial Sewing Machine
Function make stitches and sew
LK-1900BN Series
xi
LK-1903BN/BR35
EC DECLARATION OF CONFORMITY
We hereby declare that the sewing unit or sewing system described as
complies with the following applicable regulations :
EU Machinery Directive 2006/42/EC
EU EMC Directive 2014/30/EU
EU RoHS Directive 2011/65/EU
Applied harmonized standards, in particular :
EN ISO12100, EN ISO10821, EN IEC 60204-31, EN 50581
Manufacturer :
JUKI CORPORATION
2-11-1, Tsurumaki, Tama-shi, Tokyo, Japan
Model
Description Industrial Sewing Unit
Function automatically make stitches and sew
ENGLISH
DECLARATION OF INCORPORATION OF PARTLY COMPLETED MACHINERY
We hereby declare that the sewing machine (sewing head) described below ;
1. Must not be put into service until the machinery to which it is incorporated has been declared in
conformity with provisions of the Machinery Directive 2006/42/EC,and
2. Conforms to the essential requirements of the Machinery Directive 2006/42/EC, described in the
technical documentation,and
3. To be prepared with above technical documentation compiled in accordance with part B of Annex
VII,and
4. Also to conform to the RoHS Directive 2011/65/EU
5. Relevant information on which should be transmitted in response to a reasoned request by the
national authorities,by the electronic method or other according to the request.
Applied harmonized standards, in particular :
EN ISO12100, EN ISO10821, EN 50581
Manufacturer :
JUKI CORPORATION
2-11-1, Tsurumaki, Tama-shi, Tokyo, Japan
Model
Description Industrial Sewing Machine
Function make stitches and sew
Please do not hesitate to contact our distributors or agents in your area for further information when necessary.
＊
Thedescriptioncoveredinthis"FORTHEUSEOFMACHINE"issubjecttochangefor
improvementofthecommoditywithoutnotice.
Copyright © 2017 JUKI CORPORATION
• All rights reserved throughout the world.
17 · 07Printed in Japan
2-11-1, TSURUMAKI, TAMA-SHI,
TOKYO, 206-8551, JAPAN
PHONE : (81)42-357-2371
FAX : (81)42-357-2274
http://www.juki.com
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