Juki LY3-6840-B0T Bruksanvisning
Läs gratis den bruksanvisning för Juki LY3-6840-B0T (20 sidor) i kategorin Symaskin. Guiden har ansetts hjälpsam av 23 personer och har ett genomsnittsbetyg på 5.0 stjärnor baserat på 12 recensioner. Har du en fråga om Juki LY3-6840-B0T eller vill du ställa frågor till andra användare av produkten? Ställ en fråga
Sida 1/20

A181E095P01
SINGLE-NEEDLE LOCKSTITCH UPPER AND LOWER FEED
CYLINDER-BED INDUSTRIAL SEWING MACHINE
MODEL
LY3- -B0T 6840

PRECAUTION BEFORE STARTING OPERATION
1 Safety Precautions
1 . Whenturningthepoweron,keepyourhandsandngersawayfromtheareaaround/
undertheneedleandtheareaaroundthepulley.
2 . Thepowermustbeturnedowhenthemachineisnotused,orwhentheoperator
leaveshis/herseat.
3 . Thepowermustbeturnedobeforetiltingthemachinehead,installingorremoving
the“V”belt,adjustingthemachine,orreplacingparts.
4 . Avoidplacingngers,hairs,obstacles,etc.nearthepulley,“V”belt,bobbinwinder
wheel,ormotorwhenthemachineisinoperation.Injurycouldresult.
5 . Don’tputngersintothethreadtake-uplevercover,around/undertheneedle,or
pulleywhenthemachineisinoperation.
6 . Ifthebeltcover,thengerguard,and/ortheeyeguardareinstalled,don’toperate
themachinewithoutthesesafetydevices.
2 Precaution before Starting Operation
1 . Ifthemachine’soilpanhasanoilsump,neveroperatethemachinewithoutllingoil
init.
2 . Ifthemachineislubricatedbyadropoiler,neveroperatethemachinewithout
lubricating.
3 . Whenanewsewingmachineisoperated,verifytherotationaldirectionofthepulley
withthepoweron.
(Thepulleyshouldrotatecounterclockwisewhenviewedfromthepulley.)
4 . Verifyvoltageand(singleorthree)phaseindicatedonthenameplateofthemotor.
3 Precaution for Operating Conditions
1 . Avoidusingthemachineatabnormallyhightemperature(35℃orhigher)orlow
temperature(5℃orlower).Otherwise,machinefailuremayresult.
2 . Avoidusingthemachineindustyconditions.
3 . Avoidusingthemachineinconditionslledwithalotofelectricnoisessuchashigh-
frequencywelders.
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
1Installationofthesewingmachine………………………………………………… 1
2Adjustmentoftheneedlestoppingposition……………………………………… 1
USAGE PRECAUTION ……………………………………………… 2
1Installationofthekneelifter ……………………………………………………… 2
2Lubrication …………………………………………………………………………… 2
3Lubricationcondition………………………………………………………………… 2
4Adjustmentoflubricationtotherotatinghook ………………………………… 3
5Adjustmentoflubricationtotheuppershaft …………………………………… 3
6Periodicalcleaning…………………………………………………………………… 4
7Precautionforthebuilt-intypedetector ………………………………………… 4
8Installationofthebeltcover ……………………………………………………… 4
9Precautiononoperation …………………………………………………………… 4
HOW TO USE ……………………………………………… 5
1Installationoftheneedle …………………………………………………………… 5
2Windingofthebobbinthread……………………………………………………… 5
3Threadingoftheneedlethread …………………………………………………… 6
4Adjustmentoffeed(stitch)lengthandbackstitch……………………………… 6
5Balanceofthreadstension ………………………………………………………… 6
6Adjustmentoftheneedlethreadtension………………………………………… 7
7Adjustmentofthebobbinthreadtension………………………………………… 7
8Adjustmentofthepresserfootpressure………………………………………… 7
9Adjustmentofthefeeddogheight ……………………………………………… 8
:Thefeedbardeectionpreventiondevice ……………………………………… 8
AAdjustmentofforward/backwardstitchlength………………………………… 9
BManualPresserbarlifter…………………………………………………………… 9
CAdjustmentofthekneelifteroperatingforce…………………………………… 9
DAdjustmentofthefeedfootandthepresserfoot ……………………………… 10
EAdjustmentthefeedtiming(feedupper/lowerposition) …………………… 12
FAdjustmentofthefeedtiming …………………………………………………… 13
GAdjustmentofthefeeddog’sforward/backwardposition…………………… 13
HTherotatinghook,bobbincase,andbobbin……………………………………… 13
IAdjustmentofthegapbetweenthepulleyandthemachinehead…………… 13
ADDENDIX ……………………………………………… 14
Tableshape ……………………………………………………………………………… 14
SPECIFICATIONS ……………………………………………… 15
Produktspecifikationer
Varumärke: | Juki |
Kategori: | Symaskin |
Modell: | LY3-6840-B0T |
Behöver du hjälp?
Om du behöver hjälp med Juki LY3-6840-B0T ställ en fråga nedan och andra användare kommer att svara dig
Symaskin Juki Manualer
8 Januari 2025
31 December 2025
31 December 2025
31 December 2025
21 Oktober 2024
21 Oktober 2024
18 Oktober 2024
14 Oktober 2024
5 Oktober 2024
1 Oktober 2024
Symaskin Manualer
- Toyota
- Łucznik
- Necchi
- Blaupunkt
- ER
- Emerio
- Yamata
- Bernette
- Tristar
- Siemssen
- Sinbo
- Elna
- Silvercrest
- Solac
- Easymaxx
Nyaste Symaskin Manualer
14 Juni 2025
14 Juni 2025
13 Juni 2025
13 Juni 2025
13 Juni 2025
13 Juni 2025
13 Juni 2025
13 Juni 2025
31 Maj 2025
8 April 2025