Mitsubishi Electric LY2-3310-B1T User manual

A180E388P03
INSTRUCTION MANUAL
SINGLE-NEEDLE LOCKSTITCH UPPER AND LOWER FEED
AUTOMATIC UNDERTRIMMER
INDUSTRIAL SEWING MACHINE
LY2-3310-B1T
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
PREPARATION FOR OPERATION ……………………………………………… 1
1Adjustmentoftheneedlestoppingposition……………………………………… 1
USAGE PRECAUTION ……………………………………………… 2
1Lubrication …………………………………………………………………………… 2
2Adjustmentoflubricationtotherotatinghook ………………………………… 2
3Periodicalcleaning…………………………………………………………………… 3
4Precautionforthebuilt-intypedetector ………………………………………… 4
5Installationofthebeltcover ……………………………………………………… 4
6Precautiononoperation …………………………………………………………… 4
HOW TO USE ……………………………………………… 5
1Installationoftheneedle …………………………………………………………… 5
2Windingofthebobbinthread……………………………………………………… 5
3Threadingoftheneedlethread…………………………………………………… 6
4Adjustmentoffeed(stitch)lengthandbackstitch……………………………… 6
5Balanceofthreadstension ………………………………………………………… 6
6Adjustmentoftheneedlethreadtension………………………………………… 6
7Adjustmentofthebobbinthreadtension………………………………………… 7
8Adjustmentofthepresserfootpressure………………………………………… 7
9Adjustmentofthefeeddogheight ……………………………………………… 7
:Adjustmentofthefeedfootandthepresserfoot ……………………………… 8
ATohandlethreadatthestartofsewing ………………………………………… 9
BAdjustmentofthethreadtrimmerdevice ……………………………………… 9
CAdjustmentofthegapbetweenthepulleyandthemachinehead…………… 12
SPECIFICATIONS ……………………………………………… 13

1 Adjustment of the needle stopping position
1 . Adjustment of “UP” position
Whenthepedaliskickeddownbyheel,themachinestopsat“UP”position.
Ifmarksdeviatelargerthan3mm,adjustasfollows.
( 1 )Disconnecttheplug(12pins)ofcablefromthemachinehead.
( 2 )Runthemachineandstopat“UP”position.
( 3 )Whileholdingthepulley,insertthe“Adjustingtool”inthehole Ⓐ,thenturnthetool.
2 . Adjustment of “Down” position
Whenthepedalis“Neutral”themachinestopsat“Down”position.
Ifmarksdeviatelargethan2mm,adjustasfollows.
( 1 )Disconnecttheplug(12pins)ofcablefromthemachinehead.
( 2 )Runthemachineandstopat“Down”position.
( 3 )Whileholdingthepulley,insertthe“Adjustingtool”inthehole Ⓑ,thenturnthetool.
3 . Conrmthestopoperation,thensettheplug(12pins)comingfromthemachineheadintothe
receptacle.
PREPARATION FOR OPERATION
Timingmark
Rotatingdirection
1stmark
Pulley
Upposition
Downposition
1stmark
3rdmark
3rdmark Ⓐ
ⒷAdjustingtool
UP
later
earlier
Pulley
DOWN Timingoftheneedle
—1 —

1 Lubrication
●Pouroiluptothearrowpositionbeforestarting
operation.
…About3cc
…5,6drops
…1,2drops
Foroil,use“PulleySFoil”speciedby
Mitsubishi.
※Refer
 PulleySFoil：Specicgravity(15℃ )=0.86(g/cm3)
  ：Viscosity(40℃ )=18.0(mm2/s)
●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.
2 Adjustment of lubrication to the
rotating hook
Adjustthelubricationamountoftherotatinghook
byturningthescrewⒶ.
USAGE PRECAUTION
At①and②,pleaselubricate
theoilbraidundertherubberplug.
②
①
Ⓐ
ScrewⒶ
Decrease Increase
Line
Holeforsupply
Supply the oil to the tank of the bed
Filloiluptothelinewhentheoilwouldcome
bottomlevel.
—2 —

3 Periodical 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.)
USAGE PRECAUTION
Hook
Feeddog
Hook
Feedbar
● 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.
—3 —

4 Precaution for the built-in type detector
1 . Sincetheopticaltypedetectingelementisusedinthedetector,preventdustoroilfromstickingto
thedetectingplatewhenthesewingmachinepulleyisremovedforadjustment.
 Iftheyhavestuck,wipethemo󱐯withsoftclothcarefullysothatthesurfaceisnotscratched,do
notletoilpermeatetheclearanceonthedetectingplate.
2 . Incaseofdisconnectionofthepositiondetectorconnector,runningo󱐯thebeltorcomplete
constraintandoverload,themotorisautomaticallyturnedo󱐯afterpredeterminedtimetoprevent
burningofthemotor.(However,incaseofhalf-constraintandoverload,thepowermaynotbe
turnedo󱐯.)Afterthefailureiseliminated,thenormaloperationisresumedbyturningo󱐯thepower
oncethenturningonagain.
 Thesameoperationoccursforthedetectormalfunctionorthelinebreakage.
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.
USAGE PRECAUTION
—4 —

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
HOW TO USE
1 Installation of the needle
Note: Before installing the needles, be sure to turn o󱐯 the power.
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.
—5 —

5 Balance of threads tension
6 Adjustment 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.
3 Threading 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.
4 Adjustment of feed (stitch)
length and backstitch
●Adjustmentoffeed(stitch)length…Adjustfeed
lengthbyturningthefeedlengthsettingdial
whilepushingPUSHlever.
●Backstitch…Directionofstitchingcanbe
reversedbydepressingthereversesewing
leverorpushingthetouchbackswitch.
●Touchbackswitch…Inthecasethattheswitch
isturnedtothearrowdirectionby180°,no
backwardstitchingoccursevenwhenthe
switchispushed.
 Usethisfunctiontoavoidthemalfunctionsuch
asunnecessaryreversestitchinginthecase
thatthefabriccomesincontactwiththeswitch
duringsewing.
②
⑥
③
④
⑤
⑪
⑩
⑨
⑧
⑦
①
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
Touchbackswitch
PUSHlever
Feedlength
settingdial
Reversesewing
lever
HOW TO USE
—6 —

7 Adjustment of the bobbin
thread tension
1 . Thebobbinthreadtensioncanbeadjusted
byturningthescrewⒶ.
8 Adjustment of the presser foot
pressure
1 . Adjustthepresserfootpressureaccordingto
thefabricbyturningthepressureadjusting
screw.
2 . Pressureontheboththepresserfootand
thefeedfootcanbeadjusted.(Theadjusting
screwpositionisfactory-adjustedasshownin
thegure.)
3 . Sewingpressureshouldbeadjustedtothe
minimumrequiredstrength.
9 Adjustment of the feed dog
height
1 . Turnthepulleyandstopitattheposition
wherethefeedliftingrockshaftcrank(right)
swingstotheinnermostposition.
2 . LoosenthescrewⒶ.
 Note:Becarefulnottomovethefeedlifting
rockshaftcrank(right)inthelateraldirection.
3 . Adjustthefeeddogheightbyswingingthe
feedliftingrockshaftcrank(left)andmoving
thefeedbar.
4 . Afteradjusting,fullytightenthescrewⒶ.
The feed dog height is factory-adjusted to 1.0 mm.
HOW TO USE
ScrewⒶ
Threadtensionspring
Loosen
Tighten
Standard30mm
Strengthen
<Presserfootpressure>
Weaken
Throatplate 1.0mm
Feeddog
Feedliftingrockshaftcrank(left)
Feedbar
ScrewⒶ
Feedliftingrock
shaftcrank(right)
20mm
Standard
StrengthenWeaken
<Feedfootpressure>
—7 —

: Adjustment of the feed foot
and the presser foot
1 . To change the balance of the alternating
movements between the feed foot and presser foot
(1) Forexample,toincreasetheriseofthefeed
foot,anddecreasetheriseofthepresserfoot .
①Turnthepulleyuntilthepresserfootis
slightlyraisedfromthethroatplate.
② LoosenthesetscrewⒶ(ontherightside)
locatedonthefeedliftingrockshaftcrank(right).
③Thebuilt-inspringpullsdownthepresser
footuntilitmakescontactwiththethroat
plate.Then,tightenthesetscrewⒶ.
④Thiscompletestheadjustment,i.e.,the
protrusionofthepresserfoothasbeen
decreasedbyasetdistance.And,the
verticalmotionofthefeedfoothasbeen
increasedbythatsamedistance.
(2) Asacontrarycase( 1 ),todecreasetheriseofthe
feedfoot,andincreasetheriseofthepresserfoot.
 First,turnthepulleyuntilthefeedfootis
slightlyraisedfromthethroatplate.Next,
loosenthescrewⒶ.Finally,tightenthe
screwⒶagain.
 Thisdecreasestheriseofthefeedfoot.
2 . Adjustment of the movement height of the
presser foot and feed foot
Note:Whensewingathinfabric,theupanddown
movementshouldbeadjustedatminimum.
●Toadjust,loosenthescrew,andshiftthe
positionofcrankrodboss.
 Upward →Theupanddownmovement
willincrease.(Max.5mm)
 Downward→Theupanddownmovement
willdecrease.(Min.2mm)
3 . A gap between the feed foot and the presser foot
Note: Attheconditionthestitchlengthisatmax.,the
min.gapbetweenthefeedfootandthepresser
footisadjustedtobe5mmasstandard.
●LoosenthescrewⒶ,thenturnthefeed
drivingshaft,sothatthegapⒷcanbe
adjusted.
 Afteradjusting,fullytightenthescrewⒶ.
4 . Proper timing between the upper and lower feed
Note:Althoughtheupperfeedamount(feedfoot)
adjustthelowerfeedamount(feeddog)
areadjustedby1:1,pleaseadjusttheupper
feedamountincreasinglyordecreasingly,
accordingtothematerialtobesewn.
●Toadjust,loosenthenutandshiftthesquare
blockupanddown.
 Upward →Feedingamountwilldecrease
 Downward→Feedingamountwillincrease
HOW TO USE
Nut
Feedliftingrock
shaftcrank(left)
ScrewⒶ
5mmⒷ
Feedfoot
Presserfoot
Feeddrivingshaftcrank(right) Feeddrivingshaft
Screw
Large
Small
Crankrod
Feedliftingrockshaftcrank(right)
Ⓐ
—8 —

A To handle thread at the start of
sewing
1 . In the case of open sewing:
Whentheneedlethreadisnotheldbythe
presserfootduringsewing,theendofthe
needlethreadisstitchedontothereverseside
ofthecloth,thusenhancingasewingnish.
Slowlystarttotakeupafewstitchesatthe
beginningsoastopreventtheneedlethread
frombeingo󱐯outoftheneedle.
2 . When the needle thread is held by the
presser foot:
Theendoftheneedlethreadremainsonthe
surfaceofthecloth.
Tostitchinthisway,itispreferabletopull
outthesewnfabrictotheothersideofthe
presserfootattheendofsewing.
B Adjustment of the thread trimmer device
1 . Conguration of the thread trimmer devise
2 . Precautions for adjustment
TheLY2-3310usesathreadtrimmerdrivesystemwithalowershaftcam.Soifyouturnthe
machinebyonerevolutionwiththethreadtrimmersolenoidactivated(i.e.,withtherollerlocated
onthecamfollowercrank( 2 )keptengagedwiththethreadtrimmercam),themovableknife(left)
willmakecontactwiththeneedle,breakingthecontactingparts.
Activatethebuilt-insolenoidonlywhenthenormalthreadtrimmingcycleisactive(lowerposition
→upperposition).
HOW TO USE
Needlethread
Needlethread
Cloth
Needlethread
Cloth
Bobbinthread
Fixedknifebracketunit
Threadguide
Fixedknife
Movableknife(left)
Knifedrivingcrank
Knifedrivingshaft
Camfollowercrank(1)
Camfollowercrank(2)
Coilspring
Threadtrimmercam
Collar
Spring Threadtrimmersolenoid
Flexiblewire
Spring
Stopper
Stopperplate
Drivelever
Knifebaseunit
Threadtrimmersolenoidunit
—9 —

3 . Relationship between the xed knife and the
movable knife (left) edge
( 1 ) Thestandardpositionisillustratedtothe
right.
(2) Ifthedistance(0.3mm)istoowide,sucha
situationmayallowfor“triple”threadbreakage
tooccur,resultingindetachedneedlethread
afterthreadsarecut.Also,ifitistoonarrow,
suchasituationmayleadtounexpectedly
uncutthreads.Pleasekeepthisinmind.
( 3 ) Theadjustmentnecessaryinstep( 2 )can
bedonebycorrectlyinstallingthexed
knifebracketunitorcorrectlymounting
thexedknife.
( 4 ) Thexedknifebracketunithasbeen
installedusingscrewⒶwiththebobbin
caseholderpositionbracketremoved(See
Fig.totheright).
4 . Knife driving shaft
(1) Thestandardpositionisillustratedtotheright.
(2) Whenassembling,theknifedrivingshaftmust
rstbeputthroughtheknifedrivingcrank.
( 3 ) Thecamfollowercrank( 1 )mustbe
positionedasillustratedtotheright,and
settotheatontheknifedrivingshaft.
( 4 ) Thestoppermustbesettotheatonthe
knifedrivingshaftinsuchawaythatthe
knifedrivingshaftissnugandsmoothly
turnsintheshaftdirection.
5 . Installing the thread trimmer solenoid unit
( 1 ) Operationstrokeofthethreadtrimmer
solenoid
①Standardoperationstrokeis6mm.
②ThisstrokecanbeadjustedbyusingnutⒶ.
( 2 ) Installingtheunit
①Theunitcanbemountedbyusingscrews
Ⓑ and Ⓒ.
②Clearanceof1mmmustbeinsured
betweenthedrivingleverandcamfollower
crank( 2 )withstoppernutⒶmadecontact
withthesolenoid.
③Insuchasituation,activatingthesolenoid
shouldcreateaclearanceof1.5mm
betweencamfollowercrank( 1 )and ( 2 ).
Thissituationisstandard.Tomeetthis
standard,slidethesolenoidmounting
bracketinthedirectionofthearrowas
illustrated,ifadjustmentisneeded.
HOW TO USE
ScrewⒶ
Fixedknife
bracketunit
Drivinglever
Camfollower
crank(2)
6mm
Solenoidmounting
bracket
Ⓐ Ⓑ
Ⓒ
Camfollowercrank(2)
Camfollower
crank(1)
1mm
1.5mm
Coilspring
Camfollowercrank(1)
102mm
Camfollowercrank(2)
Bushing
Knifedrivingshaft
Stopper
0.3mm Movableknife(left)
Fixedknife
(Knifeedge)
—10 —

HOW TO USE
6 . Installing the thread trimmer cam
(1)Facethe2ndtimingmarkⒶlocatedonthe
pulleytothematchingmarkonthearm.
(2)Withthethreadtrimmersolenoidactivated,
turnthethreadtrimmercamforwarduntil
thecammakescontactwiththeroller.
Then,setthecam.
(3)Withthethreadtrimmersolenoid
deactivated,allowthecamfollowercrank
(2)toreturntoitsoriginalposition.This
shouldcreateaclearanceof0.5to1.0mm
betweenthecamandrollerend.This
distanceisstandard.
7 . Adjustment of knives engagement
(1) Positionofmovableknife(left)andxedknife
①Seetheillustration.Thestandarddistances
fromtheneedlecenterare7.5mmand
5mmfromthemovableknife(left)and
xedkniferespectively.
(2)Adjustmentofknivesengagingamount
①Withthesolenoidactivated,turnonthe
machine.Thisturnsthethreadtrimmer
camwhichturnsthemovableknife(left).
Whenthemovableknife(left)hasmovedto
itsfarthestdistance,thestandardengaging
amountofknivesis1.5to2.0mm.
②Theengagingamountcanbeadjustedby
properlymountingthedrivingcrank.
(3)Adjustmentofknivesengagingpressure
①Seetheillustration.Insuchasituation,
themovableknife(left)andthexedknife
shouldrstmakecontactwitheachother.
Thissituationisstandard.
②Ifathreadispoorlycut,particularlywhen
itisthick,slightlyincreasetheengaging
pressure.Thisshouldsolvetheproblem.
③Theengagingpressurecanbeadjustedin
thisway:LoosenlocknutⒷ(SeeFig.),and
adjustitbyusingadjustingscrewⒶ.
Note: Thestandardpositionofcamfollower
crank(2)beforeactivationisillustrated
totheright.Ifthispositionhasbeen
changedduetoremovalofstopper
plate,etc.,rstperformthespecied
adjustmentbyusingtheadjustingbolt
locatedonthestopperplatebefore
adjustingasabovesteps(1)to(3).
ⒶMatchingmark
Threadtrimmercam Threadtrimmercam
Camfollowercrank(2)
0.5to1.0mm
Roller
Roller
Knifedrivingshaft
Lower
shaft
0.6mm
Knifedrivingcrank
1.5to2.0mm
3mm
7.5mm 5mm
Fixedknife
Movableknife(left)
Movableknife(left)
Ⓑ Ⓐ
Fixedknife
Movableknife(left)
Fixedknife
—11 —

HOW TO USE
8 . Adjustment of the needle thread tension release
(1)Withthethreadtrimmersolenoidactivated,
adjustmentshouldbesuchthatthethread
tensiondiscslocatedontheneedlethread
tensionregulatorareseparatedfromeach
otherbyabout1mm.
(2)Adjustmentcanbedoneinthisway:
LoosennutⒶandproperlymovethe
exiblewire.
(3)Movetheexiblewiretotherightto
increasetheopeningamount.

9 . Adjustment of the needle thread remaining
length
( 1 ) Thelengthofremainingthreadcanbe
adjustedbyturningtensionregulatingnut
Ⓐasfollows:
Clockwise → Shortinlength
Counterclockwise → Longinlength
C
Adjustment of the gap between
the pulley and the machine head
Thedetector’sreectionplateisinstalledonthe
innersideofthepulley.
Soacorrectdistancemustbekeptwiththe
detectorbody.
Thegapbetweenthepulleyandthemachine
headmustbe6.5mm.
Note: Ifthethreadtensiondiscsaretoo
narrowly,theneedlethreadmay
beliabletobebroken,resultingin
detachedneedlethread.Also,ifthe
spacebetweenthediscsistoowide,the
excessiveblankspacebetweenthediscs
mayresultinloosestitches.
Threadtrimmersolenoid
Flexiblewire
Increasethe
openingamount
1mm
Ⓐ
Tighten
Pre-tensionnut
Loosen
Detectorbody
Pulley
6.5mm
Adjustingtool
(Enclosedinthe
accessarybox)
—12 —

LY2-3310-B1T Specications
Model
Specications LY2-3310-B1T
Application Heavymaterial
Max.sewingspeed(rpm) 2,000
Stitchlength(mm) 0to8
Needlebarstroke(mm) 38.0
Threadtake-upleverstroke(mm) 73.0
Alternatingmovement(mm) 2.0to5.0(feedfoot)
Feeddogheight(mm) 1.0
Presserfootstroke(mm)
Hand 6.0
Knee 13.0
Needle DP × 17#22(DB× 1#22)
Hook(verticalrotatinghook) Large
Bobbincase Withracingpreventionspring
Bobbin Madeofsteelforthreadtrimmer
Lubricationsystem Manuallubrication(Thehookissupplied
withoilautomaticallyfromthetank)
Threadtrimmer Rotarytrimmingbyleftmovableknifeandrightxedknife
Touchback ○
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.
SPECIFICATIONS
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Printed in Japan