Juki LY2-3750-B1T Bruksanvisning

Juki Symaskin LY2-3750-B1T

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A181E09 P013
SINGLE-NEEDLE LOCKSTITCH UPPER AND LOWER FEED
AUTOMATIC UNDERTRIMMER
INDUSTRIAL SEWING MACHINE
MODEL
LY2- -B1T 3750
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 industrial sewing machine.
Please read this instruction manual before operating the sewing machine. Please read also
“Safety Manual”, “Instruction manual for LIMISERVO” and operate the sewing machine
correctly and safely.
CONTENTS
PREPARATION FOR OPERATION ……………………………………………… 1
1Adjustmentoftheneedlestoppingposition……………………………………… 1
USAGE PRECAUTION ……………………………………………… 1
1Installationofthekneelifter ……………………………………………………… 1
2Lubrication …………………………………………………………………………… 2
3Lubricationcondition………………………………………………………………… 2
4Adjustmentoflubricationtotherotatinghook ………………………………… 2
5Adjustmentoflubricationtotheuppershaft …………………………………… 2
6Adjustmentoftheoilpump………………………………………………………… 2
7Periodicalcleaning…………………………………………………………………… 3
8Precautionforthebuilt-intypedetector ………………………………………… 3
9Installationofthebeltcover ……………………………………………………… 3
:Precautiononoperation …………………………………………………………… 3
HOW TO USE ……………………………………………… 4
1Installationoftheneedle …………………………………………………………… 4
2Windingofthebobbinthread……………………………………………………… 4
3Threadingoftheneedlethread …………………………………………………… 5
4Adjustmentoffeed(stitch)lengthandbackstitch……………………………… 5
5Balanceofthreadstension ………………………………………………………… 5
6Adjustmentoftheneedlethreadtension………………………………………… 6
7Adjustmentofthebobbinthreadtension………………………………………… 6
8Adjustmentofthepresserfootpressure………………………………………… 6
9Adjustmentofthefeeddogheight ……………………………………………… 7
:Adjustmentofthefeeddoginclination…………………………………………… 7
AAdjustmentofforward/backwardstitchlength………………………………… 7
BManualPresserbarlifter…………………………………………………………… 8
CAdjustmentofthefeedfootandthepresserfoot ……………………………… 8
DAdjustmentofthefeedtiming …………………………………………………… 10
EAdjustmentofthethreadtrimmerdevice ……………………………………… 10
FTherotatinghook,bobbincase,andbobbin……………………………………… 13
GAdjustmentofthegapbetweenthepulleyandthemachinehead…………… 13
SPECIFICATIONS ……………………………………………… 14

Produktspecifikationer

Varumärke: Juki
Kategori: Symaskin
Modell: LY2-3750-B1T

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