JUKI MH-486-5 User manual
No.03
40095699
INSTRUCTION MANUAL
MH-486-5
NOTE : Read safety instructions carefully and understand them before using.
Retain this Instruction Manual for future reference.
Copyright C2011-2013 JUKI CORPORATION
• All rights reserved throughout the world.
Please do not hesitate to contact our distributors or agents in your area for further information when necessary.
＊
The description covered in this instruction manual is subject to change for improvement of the
commodity without notice.
13 · 09 Printed in Japan
SEWING MACHINERY BUSINESS UNIT
2-11-1, TSURUMAKI, TAMA-SHI,
TOKYO, 206-8551, JAPAN
PHONE : (81)42-357-2371
FAX : (81)42-357-2380
http://www.juki.com
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
DUHQRWFRQWDLQHGLQWKHVSHFL¿FDWLRQVRI\RXUSURGXFW
7KHULVNLQGLFDWLRQVDUHFODVVL¿HGLQWRWKHIROORZLQJWKUHHGLIIHUHQWFDWHJRULHVWRKHOSXQGHUVWDQGWKHPHDQLQJ
of the labels. Be sure to fully understand the following description and strictly observe the instructions.
Warning label
❶
❷
❸
❶7KHUHLVWKHSRVVLELOLW\WKDWVOLJKWWRVHULRXVLQMXU\RUGHDWKPD\EHFDXVHG
7KHUHLVWKHSRVVLELOLW\WKDWLQMXU\PD\EHFDXVHGE\WRXFKLQJPRYLQJSDUW
❷7RSHUIRUPVHZLQJZRUNZLWKVDIHW\JXDUG
7RSHUIRUPVHZLQJZRUNZLWKVDIHW\FRYHU
7RSHUIRUPVHZLQJZRUNZLWKVDIHW\SURWHFWLRQGHYLFH
❸%HVXUHWRWXUQWKHSRZHU2))EHIRUHFDUU\LQJRXWPDFKLQHKHDGWKUHDGLQJ
QHHGOHFKDQJLQJEREELQFKDQJLQJRURLOLQJDQGFOHDQLQJ
❸
❷
❶
(OHFWULFDOVKRFN
GDQJHUODEHO
DANGER :
7KLVLQGLFDWLRQLVJLYHQZKHUHWKHUHLVDQLPPHGLDWHGDQJHURIGHDWKRUVHURXVLQMXU\LIWKHSHUVRQLQFKDUJHRUDQ\WKLUG
SDUW\PLVKDQGOHVWKHPDFKLQHRUGRHVQRWDYRLGWKHGDQJHURXVVLWXDWLRQZKHQRSHUDWLQJRUPDLQWDLQLQJWKHPDFKLQH
WARNING :
7KLVLQGLFDWLRQLVJLYHQZKHUHWKHUHLVDSRWHQWLDOLW\IRUGHDWKRUVHULRXVLQMXU\LIWKHSHUVRQLQFKDUJHRUDQ\WKLUG
SDUW\PLVKDQGOHVWKHPDFKLQHRUGRHVQRWDYRLGWKHGDQJHURXVVLWXDWLRQZKHQRSHUDWLQJRUPDLQWDLQLQJWKHPDFKLQH
CAUTION :
7KLVLQGLFDWLRQLVJLYHQZKHUHWKHUHLVDGDQJHURIPHGLXPWRPLQRULQMXU\LIWKHSHUVRQLQFKDUJHRUDQ\WKLUGSDU
W\PLVKDQGOHVWKHPDFKLQHRUGRHVQRWDYRLGWKHGDQJHURXVVLWXDWLRQZKHQRSHUDWLQJRUPDLQWDLQLQJWKHPDFKLQH
,WHPVUHTXLULQJVSHFLDODWWHQWLRQ
3LFWRULDOZDUQLQJLQGLFDWLRQ
7KHUHLVDULVNRILQMXU\LIFRQWDFW
LQJDPRYLQJVHFWLRQ
3LFWRULDOZDUQLQJ
LQGLFDWLRQ
%HDZDUHWKDWKROGLQJWKHVHZLQJ
PDFKLQHGXULQJRSHUDWLRQFDQ
KXUW\RXUKDQGV
7KHUHLVDULVNRIHOHFWULFDOVKRFNLI
FRQWDFWLQJDKLJKYROWDJHVHFWLRQ
7KHUHLVDULVNRIHQWDQJOHPHQWLQ
WKHEHOWUHVXOWLQJLQLQMXU\
7KHUHLVDULVNRIDEXUQLIFRQWDFW
LQJDKLJKWHPSHUDWXUHVHFWLRQ
7KHUHLVDULVNRILQMXU\LI\RX
WRXFKWKHEXWWRQFDUULHU
%HDZDUHWKDWH\HGH¿FLHQF\FDQ
EHFDXVHGE\ORRNLQJGLUHFWO\DWWKH
ODVHUEHDP
,QGLFDWLRQODEHO
7KHFRUUHFWGLUHFWLRQLVLQGLFDWHG
7KHUHLVDULVNRIFRQWDFWEHWZHHQ
\RXUKHDGDQGWKHVHZLQJPD
FKLQH
&RQQHFWLRQRIDHDUWKFDEOHLV
LQGLFDWHG
TO ENSURE SAFE USE OF YOUR SEWING MACHINE
,([SODQDWLRQRIULVNOHYHOV
(II)
([SODQDWLRQRISLFWRULDOZDUQLQJLQGLFDWLRQVDQGZDUQLQJODEHOV
ii
ii
SAFETY PRECAUTIONS
:KHQLWLVQHFHVVDU\WRRSHQWKHFRQWUROER[FRQWDLQLQJHOHFWULFDOSDUWVEHVXUHWRWXUQWKHSRZHU
RIIDQGZDLWIRU¿YHPLQXWHVRUPRUHEHIRUHRSHQLQJWKHFRYHULQRUGHUWRSUHYHQWDFFLGHQWOHDGLQJWR
HOHFWULFDOVKRFN
$FFLGHQWPHDQVWRFDXVH
SHUVRQDOLQMXU\RUGHDWKRU
GDPDJHWRSURSHUW\
DANGER
CAUTION
%DVLFSUHFDXWLRQ
%HVXUHWRUHDGWKHLQVWUXFWLRQPDQXDODQGRWKHUH[SODQDWRU\GRFXPHQWVVXSSOLHGZLWKDFFHVVRULHVRI
WKHPDFKLQHEHIRUHXVLQJWKHPDFKLQH&DUHIXOO\NHHSWKHLQVWUXFWLRQPDQXDODQGWKHH[SODQDWRU\GRFX
PHQWVDWKDQGIRUTXLFNUHIHUHQFH
7KHFRQWHQWRIWKLVVHFWLRQLQFOXGHVLWHPVZKLFKDUHQRWFRQWDLQHGLQWKHVSHFL¿FDWLRQVRI\RXUSURGXFW
%HVXUHWRZHDUVDIHW\JRJJOHVWRSURWHFWDJDLQVWDFFLGHQWFDXVHGE\QHHGOHEUHDNDJH
7KRVHZKRXVHDKHDUWSDFHUKDYHWRXVHWKHPDFKLQHDIWHUFRQVXOWDWLRQZLWKDPHGLFDOVSHFLDOLVW
6DIHW\GHYLFHVDQGZDUQLQJODEHOV
%HVXUHWRRSHUDWHWKHPDFKLQHDIWHUYHULI\LQJWKDWVDIHW\GHYLFHVLVFRUUHFWO\LQVWDOOHGLQSODFHDQG
ZRUNVQRUPDOO\LQRUGHUWRSUHYHQWDFFLGHQWFDXVHGE\ODFNRIWKHGHYLFHV
,IDQ\RIWKHVDIHW\GHYLFHVLVUHPRYHGEHVXUHWRUHSODFHLWDQGYHULI\WKDWLWZRUNVQRUPDOO\LQRUGHUWR
SUHYHQWDFFLGHQWWKDWFDQUHVXOWLQSHUVRQDOLQMXU\RUGHDWK
%HVXUHWRNHHSWKHZDUQLQJODEHOVDGKHUHGRQWKHPDFKLQHFOHDUO\YLVLEOHLQRUGHUWRSUHYHQWDFFLGHQW
WKDWFDQUHVXOWLQSHUVRQDOLQMXU\RUGHDWK,IDQ\RIWKHODEHOVKDVVWDLQHGRUFRPHXQVWXFNEHVXUHWR
FKDQJHLWZLWKDQHZRQH
$SSOLFDWLRQDQGPRGL¿FDWLRQ
1HYHUXVHWKHPDFKLQHIRUDQ\DSSOLFDWLRQRWKHUWKDQLWVLQWHQGHGRQHDQGLQDQ\PDQQHURWKHUWKDQWKDW
SUHVFULEHGLQWKHLQVWUXFWLRQPDQXDOLQRUGHUWRSUHYHQWDFFLGHQWWKDWFDQUHVXOWLQSHUVRQDOLQMXU\RU
GHDWK-8.,DVVXPHVQRUHVSRQVLELOLW\IRUGDPDJHVRUSHUVRQDOLQMXU\RUGHDWKUHVXOWLQJIURPWKHXVHRI
WKHPDFKLQHIRUDQ\DSSOLFDWLRQRWKHUWKDQWKHLQWHQGHGRQH
1HYHUPRGLI\DQGDOWHUWKHPDFKLQHLQRUGHUWRSUHYHQWDFFLGHQWWKDWFDQUHVXOWLQSHUVRQDOLQMXU\RU
GHDWK-8.,DVVXPHVQRUHVSRQVLELOLW\IRUGDPDJHVRUSHUVRQDOLQMXU\RUGHDWKUHVXOWLQJIURPWKHPD
FKLQHZKLFKKDVEHHQPRGL¿HGRUDOWHUHG
(GXFDWLRQDQGWUDLQLQJ
,QRUGHUWRSUHYHQWDFFLGHQWUHVXOWLQJIURPXQIDPLOLDULW\ZLWKWKHPDFKLQHWKHPDFKLQHKDVWREHXVHG
RQO\E\WKHRSHUDWRUZKRKDVEHHQWUDLQHGHGXFDWHGE\WKHHPSOR\HUZLWKUHVSHFWWRWKHPDFKLQHRSHU
DWLRQDQGKRZWRRSHUDWHWKHPDFKLQHZLWKVDIHW\WRDFTXLUHDGHTXDWHNQRZOHGJHDQGRSHUDWLRQVNLOO7R
HQVXUHWKHDERYHWKHHPSOR\HUKDVWRHVWDEOLVKDQHGXFDWLRQWUDLQLQJSODQIRUWKHRSHUDWRUVDQGHGX
FDWHWUDLQWKHPEHIRUHKDQG
,WHPVIRUZKLFKWKHSRZHUWRWKHPDFKLQHKDVWREHWXUQHGRII
7XUQLQJWKHSRZHURII 7XUQLQJWKHSRZHUVZLWFKRIIWKHQUHPRYLQJWKHSRZHUSOXJIURPWKHRXWOHW
7KLVDSSOLHVWRWKHIROORZLQJ
%HVXUHWRLPPHGLDWHO\WXUQWKHSRZHURIILIDQ\DEQRUPDOLW\RUIDLOXUHLVIRXQGRULQWKHFDVHRISRZHU
IDLOXUHLQRUGHUWRSURWHFWDJDLQVWDFFLGHQWWKDWFDQUHVXOWLQSHUVRQDOLQMXU\RUGHDWK
7RSURWHFWDJDLQVWDFFLGHQWUHVXOWLQJIURPDEUXSWVWDUWRIWKHPDFKLQHEHVXUHWRFDUU\RXWWKHIROORZ
LQJRSHUDWLRQVDIWHUWXUQLQJWKHSRZHURII)RUWKHPDFKLQHLQFRUSRUDWLQJDFOXWFKPRWRULQSDUWLFXODU
EHVXUHWRFDUU\RXWWKHIROORZLQJRSHUDWLRQVDIWHUWXUQLQJWKHSRZHURIIDQGYHULI\LQJWKDWWKHPDFKLQH
VWRSVFRPSOHWHO\
)RUH[DPSOHWKUHDGLQJWKHSDUWVVXFKDVWKHQHHGOHORRSHUVSUHDGHUHWFZKLFKKDYHWREHWKUHDG
HGRUFKDQJLQJWKHEREELQ
)RUH[DPSOHFKDQJLQJRUDGMXVWLQJDOOFRPSRQHQWSDUWVRIWKHPDFKLQH
)RUH[DPSOHZKHQLQVSHFWLQJUHSDLULQJRUFOHDQLQJWKHPDFKLQHRUOHDYLQJWKHPDFKLQH
%HVXUHWRUHPRYHWKHSRZHUSOXJE\KROGLQJWKHSOXJVHFWLRQLQVWHDGRIWKHFRUGVHFWLRQLQRUGHUWRSUH
YHQWHOHFWULFDOVKRFNHDUWKOHDNDJHRU¿UHDFFLGHQW
%HVXUHWRWXUQWKHSRZHURIIZKHQHYHUWKHPDFKLQHLVOHIWXQDWWHQGHGEHWZHHQZRUNV
%HVXUHWRWXUQWKHSRZHURIILQWKHFDVHRISRZHUIDLOXUHLQRUGHUWRSUHYHQWDFFLGHQWUHVXOWLQJRIEUHDN
DJHRIHOHFWULFDOFRPSRQHQWV
– 19 –
– 18 –
iii
iii
35(&$87,21672%(7$.(1,19$5,28623(5$7,2167$*(6
7UDQVSRUWDWLRQ
%HVXUHWROLIWDQGPRYHWKHPDFKLQHLQDVDIHPDQQHUWDNLQJWKHPDFKLQHZHLJKWLQFRQVLGHUDWLRQ5HIHU
WRWKHWH[WRIWKHLQVWUXFWLRQPDQXDOIRUWKHPDVVRIWKHPDFKLQH
%HVXUHWRWDNHVXI¿FLHQWVDIHW\PHDVXUHVWRSUHYHQWIDOOLQJRUGURSSLQJEHIRUHOLIWLQJRUPRYLQJWKH
PDFKLQHLQRUGHUWRSURWHFWDJDLQVWDFFLGHQWWKDWFDQUHVXOWLQSHUVRQDOLQMXU\RUGHDWK
2QFHWKHPDFKLQHKDVEHHQXQSDFNHGQHYHUUHSDFNLWIRUWUDQVSRUWDWLRQWRSURWHFWWKHPDFKLQHDJDLQVW
EUHDNDJHUHVXOWLQJIURPXQH[SHFWHGDFFLGHQWRUGURSSLQJ
8QSDFNLQJ
%HVXUHWRXQSDFNWKHPDFKLQHLQWKHSUHVFULEHGRUGHULQRUGHUWRSUHYHQWDFFLGHQWWKDWFDQUHVXOWLQ
SHUVRQDOLQMXU\RUGHDWK,QWKHFDVHWKHPDFKLQHLVFUDWHGLQSDUWLFXODUEHVXUHWRFDUHIXOO\FKHFNQDLOV
7KHQDLOVKDYHWREHUHPRYHG
%HVXUHWRFKHFNWKHPDFKLQHIRUWKHSRVLWLRQRILWVFHQWHURIJUDYLW\DQGWDNHLWRXWIURPWKHSDFNDJH
FDUHIXOO\LQRUGHUWRSUHYHQWDFFLGHQWWKDWFDQUHVXOWLQSHUVRQDOLQMXU\RUGHDWK
,QVWDOODWLRQ
(,7DEOHDQGWDEOHVWDQG
%HVXUHWRXVH-8.,JHQXLQHWDEOHDQGWDEOHVWDQGLQRUGHUWRSUHYHQWDFFLGHQWWKDWFDQUHVXOWLQSHU
VRQDOLQMXU\RUGHDWK,ILWLVLQHYLWDEOHWRXVHDWDEOHDQGWDEOHVWDQGZKLFKDUHQRW-8.,JHQXLQHRQHV
VHOHFWWKHWDEOHDQGWDEOHVWDQGZKLFKDUHDEOHWRVXSSRUWWKHPDFKLQHZHLJKWDQGUHDFWLRQIRUFHGXULQJ
RSHUDWLRQ
,IFDVWHUVDUH¿WWHGWRWKHWDEOHVWDQGEHVXUHWRXVHWKHFDVWHUVZLWKDORFNLQJPHFKDQLVPDQGORFN
WKHPWRVHFXUHWKHPDFKLQHGXULQJWKHRSHUDWLRQPDLQWHQDQFHLQVSHFWLRQDQGUHSDLULQRUGHUWRSUHYHQW
DFFLGHQWWKDWFDQUHVXOWLQSHUVRQDOLQMXU\RUGHDWK
,,&DEOHDQGZLULQJ
%HVXUHWRSUHYHQWDQH[WUDIRUFHIURPEHLQJDSSOLHGWRWKHFDEOHGXULQJWKHXVHLQRUGHUWRSUHYHQW
HOHFWULFDOVKRFNHDUWKOHDNDJHRU¿UHDFFLGHQW,QDGGLWLRQLILWLVQHFHVVDU\WRFDEOHQHDUWKHRSHUDWLQJ
VHFWLRQVXFKDVWKH9EHOWEHVXUHWRSURYLGHDVSDFHRIPPRUPRUHEHWZHHQWKHRSHUDWLQJVHFWLRQ
DQGWKHFDEOH
%HVXUHWRDYRLGVWDUEXUVWFRQQHFWLRQLQRUGHUWRSUHYHQWHOHFWULFDOVKRFNHDUWKOHDNDJHRU¿UHDFFLGHQW
%HVXUHWRVHFXUHO\FRQQHFWWKHFRQQHFWRUVLQRUGHUWRSUHYHQWHOHFWULFDOVKRFNHDUWKOHDNDJHRU¿UH
DFFLGHQW,QDGGLWLRQEHVXUHWRUHPRYHWKHFRQQHFWRUZKLOHKROGLQJLWVFRQQHFWRUVHFWLRQ
,,,*URXQGLQJ
%HVXUHWRKDYHDQHOHFWULFDOH[SHUWLQVWDOODQDSSURSULDWHSRZHUSOXJLQRUGHUWRSUHYHQWDFFLGHQWFDXVHG
E\HDUWKOHDNDJHRUGLHOHFWULFVWUHQJWKYROWDJHIDXOW,QDGGLWLRQEHVXUHWRFRQQHFWWKHSRZHUSOXJWRWKH
JURXQGHGRXWOHWZLWKRXWH[FHSWLRQV
%HVXUHWRJURXQGWKHHDUWKFDEOHLQRUGHUWRSUHYHQWDFFLGHQWFDXVHGE\HDUWKOHDNDJH
,90RWRU
%HVXUHWRXVHWKHVSHFL¿HGUDWHGPRWRU-8.,JHQXLQHSURGXFWLQRUGHUWRSUHYHQWDFFLGHQWFDXVHGE\
EXUQRXW
,IDFRPPHUFLDOO\DYDLODEOHFOXWFKPRWRULVXVHGZLWKWKHPDFKLQHEHVXUHWRVHOHFWRQHZLWKDQHQWDQ
JOHPHQWSUHYHQWLYHSXOOH\FRYHULQRUGHUWRSURWHFWDJDLQVWEHLQJHQWDQJOHGE\WKH9EHOW
%HIRUHRSHUDWLRQ
%HVXUHWRPDNHVXUHWKDWWKHFRQQHFWRUVDQGFDEOHVDUHIUHHIURPGDPDJHGURSRXWDQGORRVHQHVVEH
IRUHWXUQLQJWKHSRZHURQLQRUGHUWRSUHYHQWDFFLGHQWUHVXOWLQJLQSHUVRQDOLQMXU\RUGHDWK
1HYHUSXW\RXUKDQGLQWRWKHPRYLQJVHFWLRQVRIWKHPDFKLQHLQRUGHUWRSUHYHQWDFFLGHQWWKDWFDQUHVXOW
LQSHUVRQDOLQMXU\RUGHDWK
,QDGGLWLRQFKHFNWREHVXUHWKDWWKHGLUHFWLRQRIURWDWLRQRIWKHSXOOH\DJUHHVZLWKWKHDUURZVKRZQRQ
SXOOH\
,IWKHWDEOHVWDQGZLWKFDVWHUVLVXVHGEHVXUHWRVHFXUHWKHWDEOHVWDQGE\ORFNLQJWKHFDVWHUVRUZLWK
DGMXVWHUVLISURYLGHGLQRUGHUWRSURWHFWDJDLQVWDFFLGHQWFDXVHGE\DEUXSWVWDUWRIWKHPDFKLQH
'XULQJRSHUDWLRQ
%HVXUHQRWWRSXW\RXU¿QJHUVKDLURUFORWKLQJFORVHWRWKHPRYLQJVHFWLRQVVXFKDVWKHKDQGZKHHO
KDQGSXOOH\DQGPRWRURUSODFHVRPHWKLQJQHDUWKRVHVHFWLRQVZKLOHWKHPDFKLQHLVLQRSHUDWLRQLQRUGHU
WRSUHYHQWDFFLGHQWFDXVHGE\HQWDQJOHPHQWWKDWFDQUHVXOWLQSHUVRQDOLQMXU\RUGHDWK
%HVXUHQRWWRSODFH\RXU¿QJHUVQHDUWKHVXUURXQGDUHDRIWKHQHHGOHRULQVLGHWKHWKUHDGWDNHXSOHYHU
FRYHUZKHQWXUQLQJWKHSRZHURQRUZKLOHWKHPDFKLQHLVLQRSHUDWLRQLQRUGHUWRSUHYHQWDFFLGHQWWKDW
FDQUHVXOWLQSHUVRQDOLQMXU\RUGHDWK
7KHPDFKLQHUXQVDWDKLJKVSHHG1HYHUEULQJ\RXUKDQGVQHDUWKHPRYLQJVHFWLRQVVXFKDVORRSHU
VSUHDGHUQHHGOHEDUKRRNDQGFORWKWULPPLQJNQLIHGXULQJRSHUDWLRQLQRUGHUWRSURWHFW\RXUKDQGV
DJDLQVWLQMXU\,QDGGLWLRQEHVXUHWRWXUQWKHSRZHURIIDQGFKHFNWREHVXUHWKDWWKHPDFKLQHFRPSOHWH
O\VWRSVEHIRUHFKDQJLQJWKHWKUHDG
%HFDUHIXOQRWWRDOORZ\RXU¿QJHUVRUDQ\RWKHUSDUWVRI\RXUERG\WREHFDXJKWEHWZHHQWKHPDFKLQH
DQGWDEOHZKHQUHPRYLQJWKHPDFKLQHIURPRUUHSODFLQJLWRQWKHWDEOHLQRUGHUWRSUHYHQWDFFLGHQWWKDW
FDQUHVXOWLQSHUVRQDOLQMXU\RUGHDWK
iv
iv
%HVXUHWRWXUQWKHSRZHURIIDQGFKHFNWREHVXUHWKDWWKHPDFKLQHDQGPRWRUFRPSOHWHO\VWRSEHIRUHUH
PRYLQJWKHEHOWFRYHUDQG9EHOWLQRUGHUWRSUHYHQWDFFLGHQWFDXVHGE\DEUXSWVWDUWRIWKHPDFKLQHRUPRWRU
,IDVHUYRPRWRULVXVHGZLWKWKHPDFKLQHWKHPRWRUGRHVQRWSURGXFHQRLVHZKLOHWKHPDFKLQHLVDWUHVW
%HVXUHQRWWRIRUJHWWRWXUQWKHSRZHURIILQRUGHUWRSUHYHQWDFFLGHQWFDXVHGE\DEUXSWVWDUWRIWKHPRWRU
1HYHUXVHWKHPDFKLQHZLWKWKHFRROLQJRSHQLQJRIWKHPRWRUSRZHUER[VKLHOGHGLQRUGHUWRSUHYHQW¿UH
DFFLGHQWE\RYHUKHDW
/XEULFDWLRQ
%HVXUHWRXVH-8.,JHQXLQHRLODQG-8.,JHQXLQHJUHDVHWRWKHSDUWVWREHOXEULFDWHG
,IWKHRLODGKHUHVRQ\RXUH\HRUERG\EHVXUHWRLPPHGLDWHO\ZDVKLWRIILQRUGHUWRSUHYHQWLQÀDPPD
WLRQRULUULWDWLRQ
,IWKHRLOLVVZDOORZHGXQLQWHQWLRQDOO\EHVXUHWRLPPHGLDWHO\FRQVXOWDPHGLFDOGRFWRULQRUGHUWRSUH
YHQWGLDUUKHDRUYRPLWLQJ
0DLQWHQDQFH
,QSUHYHQWLRQRIDFFLGHQWFDXVHGE\XQIDPLOLDULW\ZLWKWKHPDFKLQHUHSDLUDQGDGMXVWPHQWKDVWREH
FDUULHGRXWE\DVHUYLFHWHFKQLFLDQZKRLVWKRURXJKO\IDPLOLDUZLWKWKHPDFKLQHZLWKLQWKHVFRSHGH¿QHG
LQWKHLQVWUXFWLRQPDQXDO%HVXUHWRXVH-8.,JHQXLQHSDUWVZKHQUHSODFLQJDQ\RIWKHPDFKLQHSDUWV
-8.,DVVXPHVQRUHVSRQVLELOLW\IRUDQ\DFFLGHQWFDXVHGE\LPSURSHUUHSDLURUDGMXVWPHQWRUWKHXVHRI
DQ\SDUWRWKHUWKDQ-8.,JHQXLQHRQH
,QSUHYHQWLRQRIDFFLGHQWFDXVHGE\XQIDPLOLDULW\ZLWKWKHPDFKLQHRUHOHFWULFDOVKRFNDFFLGHQWEHVXUH
WRDVNDQHOHFWULFDOWHFKQLFLDQRI\RXUFRPSDQ\RU-8.,RUGLVWULEXWRULQ\RXUDUHDIRUUHSDLUDQGPDLQWH
QDQFHLQFOXGLQJZLULQJRIHOHFWULFDOFRPSRQHQWV
:KHQFDUU\LQJRXWUHSDLURUPDLQWHQDQFHRIWKHPDFKLQHZKLFKXVHVDLUGULYHQSDUWVVXFKDVDQDLUF\O
LQGHUEHVXUHWRUHPRYHWKHDLUVXSSO\SLSHWRH[SHODLUUHPDLQLQJLQWKHPDFKLQHEHIRUHKDQGLQRUGHUWR
SUHYHQWDFFLGHQWFDXVHGE\DEUXSWVWDUWRIWKHDLUGULYHQSDUWV
%HVXUHWRFKHFNWKDWVFUHZVDQGQXWVDUHIUHHIURPORRVHQHVVDIWHUFRPSOHWLRQRIUHSDLUDGMXVWPHQW
DQGSDUWUHSODFHPHQW
%HVXUHWRSHULRGLFDOO\FOHDQXSWKHPDFKLQHGXULQJLWVGXUDWLRQRIXVH%HVXUHWRWXUQWKHSRZHURII
DQGYHULI\WKDWWKHPDFKLQHDQGPRWRUVWRSFRPSOHWHO\EHIRUHFOHDQLQJWKHPDFKLQHLQRUGHUWRSUHYHQW
DFFLGHQWFDXVHGE\DEUXSWVWDUWRIWKHPDFKLQHRUPRWRU
%HVXUHWRWXUQWKHSRZHURIIDQGYHULI\WKDWWKHPDFKLQHDQGPRWRUVWRSFRPSOHWHO\EHIRUHFDUU\LQJRXW
PDLQWHQDQFHLQVSHFWLRQRUUHSDLURIWKHPDFKLQH)RUWKHPDFKLQHZLWKDFOXWFKPRWRUWKHPRWRUZLOO
NHHSUXQQLQJIRUDZKLOHE\LQHUWLDHYHQDIWHUWXUQLQJWKHSRZHURII6REHFDUHIXO
,IWKHPDFKLQHFDQQRWEHQRUPDOO\RSHUDWHGDIWHUUHSDLURUDGMXVWPHQWLPPHGLDWHO\VWRSRSHUDWLRQDQG
FRQWDFW-8.,RUWKHGLVWULEXWRULQ\RXUDUHDIRUUHSDLULQRUGHUWRSUHYHQWDFFLGHQWWKDWFDQUHVXOWLQSHU
VRQDOLQMXU\RUGHDWK
,IWKHIXVHKDVEORZQEHVXUHWRWXUQWKHSRZHURIIDQGHOLPLQDWHWKHFDXVHRIEORZLQJRIWKHIXVHDQG
UHSODFHWKHEORZQIXVHZLWKDQHZRQHLQRUGHUWRSUHYHQWDFFLGHQWWKDWFDQUHVXOWLQSHUVRQDOLQMXU\RU
GHDWK
%HVXUHWRSHULRGLFDOO\FOHDQXSWKHDLUYHQWRIWKHIDQDQGLQVSHFWWKHDUHDDURXQGWKHZLULQJLQRUGHUWR
SUHYHQW¿UHDFFLGHQWRIWKHPRWRU
2SHUDWLQJHQYLURQPHQW
%HVXUHWRXVHWKHPDFKLQHXQGHUWKHHQYLURQPHQWZKLFKLVQRWDIIHFWHGE\VWURQJQRLVHVRXUFHHOHFWUR
PDJQHWLFZDYHVVXFKDVDKLJKIUHTXHQF\ZHOGHULQRUGHUWRSUHYHQWDFFLGHQWFDXVHGE\PDOIXQFWLRQRI
WKHPDFKLQH
1HYHURSHUDWHWKHPDFKLQHLQDQ\SODFHZKHUHWKHYROWDJHÀXFWXDWHVE\PRUHWKDQUDWHGYROWDJH
LQRUGHUWRSUHYHQWDFFLGHQWFDXVHGE\PDOIXQFWLRQRIWKHPDFKLQH
%HVXUHWRYHULI\WKDWWKHDLUGULYHQGHYLFHVXFKDVDQDLUF\OLQGHURSHUDWHVDWWKHVSHFL¿HGDLUSUHVVXUH
EHIRUHXVLQJLWLQRUGHUWRSUHYHQWDFFLGHQWFDXVHGE\PDOIXQFWLRQRIWKHPDFKLQH
7RXVHWKHPDFKLQHZLWKVDIHW\EHVXUHWRXVHLWXQGHUWKHHQYLURQPHQWZKLFKVDWLV¿HVWKHIROORZLQJ
FRQGLWLRQV
$PELHQWWHPSHUDWXUHGXULQJRSHUDWLRQ &WR&
5HODWLYHKXPLGLW\GXULQJRSHUDWLRQ WR
'HZFRQGHQVDWLRQFDQRFFXULIEULQJLQJWKHPDFKLQHVXGGHQO\IURPDFROGHQYLURQPHQWWRDZDUPRQH
6REHVXUHWRWXUQWKHSRZHURQDIWHUKDYLQJZDLWHGIRUDVXI¿FLHQWSHULRGRIWLPHXQWLOWKHUHLVQRVLJQ
RIZDWHUGURSOHWLQRUGHUWRSUHYHQWDFFLGHQWFDXVHGE\EUHDNDJHRUPDOIXQFWLRQRIWKHHOHFWULFDOFRPSR
QHQWV
%HVXUHWRVWRSRSHUDWLRQZKHQOLJKWQLQJÀDVKHVIRUWKHVDNHRIVDIHW\DQGUHPRYHWKHSRZHUSOXJLQ
RUGHUWRSUHYHQWDFFLGHQWFDXVHGE\EUHDNDJHRUPDOIXQFWLRQRIWKHHOHFWULFDOFRPSRQHQWV
'HSHQGLQJRQWKHUDGLRZDYHVLJQDOFRQGLWLRQWKHPDFKLQHPD\JHQHUDWHQRLVHLQWKH79RUUDGLR,IWKLV
RFFXUVXVHWKH79RUUDGLRZLWKNHSWZHOODZD\IURPWKHPDFKLQH
,QRUGHUWRHQVXUHWKHZRUNHQYLURQPHQWORFDOODZVDQGUHJXODWLRQVLQWKHFRXQWU\ZKHUHWKHVHZLQJ
PDFKLQHLVLQVWDOOHGVKDOOEHIROORZHG
,QWKHFDVHWKHQRLVHFRQWUROLVQHFHVVDU\DQHDUSURWHFWRURURWKHUSURWHFWLYHJHDUVKRXOGEHZRUQDF
FRUGLQJWRWKHDSSOLFDEOHODZVDQGUHJXODWLRQV
'LVSRVDORISURGXFWVDQGSDFNDJHVDQGWUHDWPHQWRIXVHGOXEULFDWLQJRLOVKRXOGEHFDUULHGRXWSURSHUO\
DFFRUGLQJWRWKHUHOHYDQWODZVRIWKHFRXQWU\LQZKLFKWKHVHZLQJPDFKLQHLVXVHG
– 17 –
33. TROUBLES AND CORRECTIVE MEASURES
– 16 –
32. PARTIAL SHIRRING DEVICE (PF-3)
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
v
1. Keep your hands away from needle when you turn ON the power switch or while the
machine is in operation.
2. Donotputyourngersintothethreadtake-upcoverwhilethemachineisoperating.
3. Turn OFF the power switch when tilting the machine head, or removing the belt cover
or the V belts.
4. During operation, be careful not to allow your or any other person’s head, hands or
clothestocomeclosetothehandwheelandthreadtake-uplever.Also,donotplace
anything close to them.
5. Donotoperateyourmachinewiththebeltcoverandngerguardremoved.
6. Whentiltingthemachinehead,besuretoconrmthattheheadsupportbarisprop-
erlyattachedtoyourmachinehead,andbecarefulnottoallowyourngersorthelike
to be pinched in the machine head.
1. To ensure safety, never operate the machine with the ground wire for the power sup-
ply removed.
2. When inserting/removing the power plug, the power switch has to be turned OFF in
advance.
3. Intimeofthunderandlightening,stopyourworkanddisconnectthepowerplugfrom
the receptacle so as to ensure safety.
4. If the machine is suddenly moved from a cold place to a warm place, dew condensa-
tion may be observed. In this case, turn ON the power to the machine after you have
conrmedthatthereisnodangerofwaterdropsinthemachine.
5. Topreventres,periodicallydrawoutthepowerplugfromtheplugsocketandclean
the root of the pins and the space between pins.
6. The loopers oscillate at a high speed during operation.
Besuretokeepyourhandsawayfromthevicinityofthelooperstoprotecthands
from possible injury during operation. Turn the power OFF before threading the ma-
chine head.
7. To avoid possible accidents due to abrupt start of the machine, be sure to turn OFF
the power to the machine.
8. Becarefulofhandlingthisproductsoasnottopourwateroroil,shockbydropping,
andthelikesincethisproductisaprecisioninstrument.
9. When tilting or returning the sewing machine to the home position, hold the upper
sideofthemachineheadwithbothhandsandperformtheworkquietlysothatngers
orthelikearenotcaughtinthemachine.
PrecautionstobetakensoastousetheMH-486-5moresafely
vi
CAUTION :
Notethatsafetydevicessuchas“beltcover”,“ngerguard”,etc.maybeomittedfromthe
illustrations in this Instruction Manual for easy explanation.
When operating the machine, be sure not to remove these safety devices.
• Beforeyouputthemachineintooperationforthersttimeaftertheset-up,cleanitthoroughly.
Remove all dust gathering during transportation and oil it well.
• Conrmthatvoltagehasbeencorrectlyset.
Conrmthatthepowerplughasbeenproperlyconnectedtothepowersupply.
• Never use the machine in the state where the voltage type is different from the designated one.
• Thedirectionofnormalrotationofthemachineiscounterclockwiseasobservedfromthepul-
ley side.
Takecarenottoallowthemachinetorotateinthereversedirection.
• Neverrunthesewingmachinebeforellingtheoilpanwithoil.
• Be sure to remove thread from the machine head and loopers before starting a trial run.
• Fortherstmonth,decreasethesewingspeedandrunthesewingmachineataspeedof4,000
sti/min or less.
• Whenyoucarrythesewingmachine,keephandsawayfromthedetectorlocatedbehindthe
handwheel.
• Operate the handwheel after the machine has totally stopped.
CAUTION :
Checkthefollowingsoastopreventmaloperationofanddamagetothemachine.
BEFORE OPERATION
– 15 –
30. WIPER
31. POSITION OF THE THREAD TAKE-UP LEVER
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
– 14 –
28. CORRECTING THE CLOTH SLIPPAGE
1. If the lower cloth is longer than the upper cloth at the sewing end, turn the top feed adjusting
dial counter clockwise ("–" direction).
2. If the upper cloth is longer than the lower cloth at the sewing end, turn the top feed adjusting
dial clockwise ("+" direction).
★Shirring
To perform shirring, use a B-type (rake-in type) gauge, and set the top feed amount at a large
value by turning the top feed adjusting dial clockwise (toward "+" direction).
(Caution) When the top feed amount is set to 4 mm or more, operate the machine at 3,500
sti/min or less.
29. ADJUSTING THE PRESSURE OF THE WALKING FOOT
Depress adjusting screw 1, when turned clockwise, the pressure of the walking
foot increases, and when turned counterclockwise, the pressure decreases.
The standard pressure (4.5 to 5 kg) is obtained by loosening the fully tightened
adjusting screw about 6 turns.
The graduation of the adjusting screw provide standard values suitable for in
individual materials when turning in adjusting screw 1.
(Caution) Take care not to excessively increase the walking foot pressure
or set the presser foot pressure, otherwise the presser foot for
presser, otherwise the presser foot will float, leading the insuf-
ficient feed power.
Model
Description Industrial Sewing Machine
Function make stitches and sew
MH-380 Series,MH-480 Series
vii
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 the provisions of the Directive 2006/42/EC, and
2. Conforms to the essential requirements of the Directive 2006/42/EC, described in the technical
documentation, and
3. To be prepared with the 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
viii
CONTENTS
SPECIFICATIONS ...........................................................................................................................1
1. INSTALLATION .....................................................................................................................1
2. ADJUSTING THE BELT TENSION..........................................................................................2
3. ATTACHING THE THREAD STAND .......................................................................................2
4. LUBRICATION.......................................................................................................................3
5. ATTACHING THE SILICON OIL LUBRICATING UNIT ............................................................4
6. ATTACHING THE BELT COVER .............................................................................................4
7. ATTACHING THE NEEDLE ....................................................................................................5
8. THREADING THE MACHINE HEAD......................................................................................5
9. THREADING THE LOOPERS .................................................................................................5
10. ADJUSTING THE STITCH LENGTH.......................................................................................6
11. THREAD TENSION................................................................................................................6
12. ADJUSTING THE REMAINING LENGTH OF TRIMMED THREAD.........................................6
13. HAND LIFTER .......................................................................................................................7
14. ADJUSTING PRESSURE OF THE PRESSER FOOT ................................................................7
15. NEEDLE-TO-LOOPER RELATION .........................................................................................7
16. THREAD SPREADER.............................................................................................................8
17. MATCHING THE MOTION OF THE NEEDLE GUARDS WITH THE LOOP GUIDE ..................9
18. POSITION OF THE LOOPER THREAD TAKE-UP ...................................................................9
19. POSITION OF THE FRAME THREAD EYELET.......................................................................9
20. ADJUSTING THE FEED TIMING ........................................................................................ 10
21. ATTACHING THE FEED DOG ............................................................................................. 10
22. ADJUSTING THE PRESSER BAR HEIGHT.......................................................................... 10
23. THREAD TRIMMER............................................................................................................ 11
24. ADJUSTING THE DRAW-OUT AMOUNT OF THE LOOPER THREAD ................................ 12
25. REPLACEMENT OF GAUGE PARTS ................................................................................... 12
26. GAUGE PARTS .................................................................................................................. 13
27. ADJUSTING THE TOP FEED AMOUNT.............................................................................. 13
28. CORRECTING THE CLOTH SLIPPAGE................................................................................ 14
29. ADJUSTING THE PRESSURE OF THE WALKING FOOT..................................................... 14
30. WIPER................................................................................................................................ 15
31. POSITION OF THE THREAD TAKE-UP LEVER ................................................................... 15
32. PARTIAL SHIRRING DEVICE (PF-3)................................................................................... 16
33. TROUBLES AND CORRECTIVE MEASURES ...................................................................... 17
– 13 –
26. GAUGE PARTS
27. ADJUSTING THE TOP FEED AMOUNT
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
– 12 –
24. ADJUSTING THE DRAW-OUT AMOUNT OF THE LOOPER THREAD
The standard amount of looper thread is drawn out when looper
thread draw-out lever 1is spaced 3 mm from the thread path
hole in cam thread guide 2immediately before the thread
trimmer is actuated. Loosen nut 3and make adjustment by
moving cam thread tension release slide block 4to the right
or left.
For certain types of needle, the looper thread may slip off the
looper. In such a case, make adjustment so that a longer thread
is drawn out.
25. REPLACEMENT OF GAUGE PARTS
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
– 1 –
Model MH-486-5
Sewing type 1-needle, double chainstitch, differential-feed, bottom and variable top feed machine
Sewing speed Max. 4,500 sti/min
Stitch length 1 to 5 mm
Lift of presser foot Hand lifter lever : 5.5 mm, Knee lifter : 7 mm
Top feed amount 0 to 7 mm
Stroke of needle bar 33 mm
Needle Schmets 149 × 7 Nm 70 to Nm 130 (Standard : Nm 80)
Stitch length adjustment method Dial type
Safety stitch Condensation stitch/reverse-feed stitch (by feed lever)
Looper mechanism Inclined crank type
Looper stroke 21.5 mm
Lubrication system Fully automatic lubrication
Oil JUKI New Defrix Oil No.1
Noise
- Equivalent continuous emission sound pressure level (LpA) at the workstation:
A-weighted value of 83.5 dB; (Includes KpA = 2.5 dB); according to ISO 10821- C.6.2 -ISO 11204
GR2 at 4,500 sti/min.
- Sound power level (LWA);
A-weighted value of 90.5 dB; (Includes KWA = 2.5 dB); according to ISO 10821- C.6.2 -ISO 3744 GR2
at 4,500 sti/min.
1. INSTALLATION
1) Carry the sewing machine with two persons.
(Caution) Do not hold the handwheel.
2) Do not put protruding articles such as the screwdriver and the like at the
location where the sewing machine is placed.
3) Attaching the hinge seats and the support rubbers of the machine head
Fix the hinge seats 1supplied with the machine on the table using nails
2.
1
2
4) Attaching the oil pan
Install oil pan 6in such a way that it is supported at four corners of the
groove in the table.
At two corners on the operator's side, attach rubber cushion 3to a protrud-
ing portion of the table by means of nails 4. At two corners on the hinge
side, attach two head-rest cushions 5by means of nails 4. Then place oil
pan 6on the cushions.
3
45
6
4
Hinge sideOperator’s side
SPECIFICATIONS
– 2 –
5) Fit hinge 7 into the opening in the machine bed, and t the machine
head to table rubber hinge before placing the machine head on rubber
seats on the four corners.
6) Securely attach head support rod 8to the table until it goes no further.
7
8
7
7
2. ADJUSTING THE BELT TENSION
Adjust the belt tension with the height of the motor so that the belt sags 15
mm when the center of V belt is applied with a 9.8 N load.
15 mm
9.8 N
Handwheel
Motor pulley
Assemble the thread stand, set it up on the machine table using
the installation hole in the table and tighten nut 1gently.
3. ATTACHING THE THREAD STAND
1
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
– 11 –
23. THREAD TRIMMER
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
– 10 –
20. ADJUSTING THE FEED TIMING
21. ATTACHING THE FEED DOG
By loosening screw 2, the tilt of the feed dog can be ad-
justed to type A (effective for reducing puckering) or type B
in addition the standard tilt.
The maximum projection of the feed dog is 0.8 mm. Use
screw 1to make adjustment.
(Caution) When the tilt of the feed dog has been
adjusted the height of the feed dog will be
disturbed.So, check the height of the feed
dog whenever the tilt has been adjusted.
Be careful not to set the front of the feed dog
too high, otherwise the looper thread may
be scratched. (Type B)
22. ADJUSTING THE PRESSER BAR HEIGHT
Change the presser bar height or presser foot angle after loosening needle bar connecting setscrew 1. After
adjustment, tighten the setscrew rmly.
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
– 3 –
4. LUBRICATION
HIGH mark
LOW mark
Oil reservoir
Oil sight window
1. Before operation, ll the oil reservoir with JUKI New Defrix Oil No.1 up to the HIGH mark.
2. Whenever the oil level drops to the LOW mark, add more oil.
3. When the sewing machine is run after the oil reservoir has been lled, oil can be seen splashing on the oil sight window. However, the
amount of oil splash has no relation to the amount of oil in the reservoir so there is no need to worry.
4. When the oil has become dirty, replace it with fresh oil. Unscrew the oil plug from the oil reservoir when draining.
5. When using a new sewing machine or one that has not been used for a long time let it idle for about ten minutes at 3,000 to 3,500 sti/min to
run it in.
(Caution) 1. Verify that the lubricating oil is properly circulating by watching it through the oil sight window.
2. Remove any fiberous dust from the oil pump filter screen and the oil reservoir.
3. When the lubrication oil has become dirty, drain it through the oil drain screw cap and fill it with new JUKI New De-
frix Oil No.1.
4. Verify that the oil level is above "LOW' mark.
5. Clean up the oil reservoir magnet with a cloth.
Adjustment of oil amount for the face plate components.
Amount of lubricating oil supplied to the face plate components such as needle bar crank 2is adjustable by turning adjusting pin 1: bring the
dot mark 3engraved on the adjusting pin close to needle bar crank 2to minimize or farthest from the needle bar crank 2to maximize the
amount of oil maximize the amount of oil.
(Caution) The oil amount does not change immediately after adjustment, so have this in mind when adjusting the oil amount.
1
2
3
Minimum oil flow
1
2
3
Maximum oil flow
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
– 4 –
6. ATTACHING THE BELT COVER
1. Insert belt cover support 1into the tapped hole in the machine arm.
2. Temporarily x belt cover 2on the machine head with screws.
3. Slightly tilting the machine head, put rid 3of the belt cover inside the
outer pulley and x rid 3with four screws.
4. Fix rid 3on support 1.
5. Loosen the screws in the belt cover, and adjust the position of belt cover
2properly. Then securely tighten the screws in the belt cover.
6. Fix bobbin winder cover 4with three screws.
7. Fix belt cover auxiliary plate 5 as illustrated in the gure.
(Caution) 1. When tilting the machine, loosen wooden screw 6in
belt cover auxiliary plate 5and move the auxiliary
plate in the direction of the arrow to such an extent
that it does not come in contact with the belt cover as
shown in the figure.
2. After you have raised the machine, return belt cover
auxiliary plate 5to the previous position.
5. ATTACHING THE SILICON OIL LUBRICATING UNIT
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
5
6
1
2
3
4
5
6
– 9 –
17. MATCHING THE MOTION OF THE NEEDLE GUARDS WITH THE LOOP GUIDE
18. POSITION OF THE LOOPER THREAD TAKE-UP
Loosen setscrew 4. Adjust the position of looper thread cam 1so that
wire 3is visible through guide hole Bwhen third marker line A(third
from the top) of the needle bar 2aligns with the bottom end face of the
needle bar lower bushing.
After the adjustment, verify the following.
1. When the looper thread moves off tip Cof the looper thread cam,
the needle tip fully enters the looper thread triangle.
2. In the case puckering is particularly concerned, the bottom face of
the wire aligns with the bottom end of guide hole Bslightly earlier
than the normal timing.
19. POSITION OF THE FRAME THREAD EYELET
The thread tension changes by moving intermediate thread guide 1up
and down.
The thread tension is increased by moving the intermediate thread guide
upward, or decreased by moving it downward.
In general, adjust the position of setscrew 2referring to the table below.
Thread used Scale on the intermediate thread guide
Cotton
thread
#80 to #50 2 to 3
#30 to #20 3 to 4
Synthetic
thread
#80 to #50 1 to 2
#30 to #20 2 to 3
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
– 8 –
16. THREAD SPREADER
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
– 5 –
7. ATTACHING THE NEEDLE
Use a Schmets 149×7 needle.
Different needle counts are applicable. However, select an appropriate
one according to the thickness of thread and the type of material to be
used. (Nm 70 to Nm 130)
1) Turn the handwheel to bring the needle bar to the highest position
of its stroke.
2) Loosen needle clamp screw 2. Hold needle 1so that its scarf
faces toward the feeding direction of material.
3) Insert needle 1fully into the needle clamp hole until it comes in
contact with the deep end.
4) Firmly tighten needle clamp screw 2.
Attach the needle so that its eyelet faces toward A for lament thread,
or Bfor cotton thread so as to prevent stitch skipping of needle thread.
8. THREADING THE MACHINE HEAD
9. THREADING THE LOOPERS
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
– 6 –
10. ADJUSTING THE STITCH LENGTH
Turn feed regulator dial 1counterclockwise or clockwise and align the desired
number with the pin protruding from the arm.
The numbers on the dial indicate millimeters. When reducing the indication turn
the feed regulator dial while depressing reverse feed control lever 2.
★Reverse stitching
1. Depress reverse feed control lever 2.
2. Reverse stitching is possible while the lever is depressed.
3. When the lever is released, the sewing direction will return to normal.
★Lever stopper
1. When lever stopper 3is set in a high position, a small reverse feed stitch
length will result.
2. When feed lever 2is depressed after setting the lever stopper in a higher
position, the forward feed stitch length will be reduced.
Perform the above adjustment for sewing start or for stopping stitch at sew-
ing end.
(Caution) This function is not applicable to thread trimming in the case
of reverse feed stitching.
★Adjusting the needle thread tension
When needle thread tension nut 1is turned clockwise the tension of
the needle thread increases.
When it is turned counterclockwise the tension decreases.
★Adjusting the looper thread tension
When looper thread tension nut 2is turned clockwise the tension of
the looper thread increases.
When it is turned counterclockwise the tension decreases.
11. THREAD TENSION
12. ADJUSTING THE REMAINING LENGTH OF TRIMMED THREAD
The length of the thread remaining on the needle after thread trimming
signicantly affects the occurrence of stitch skipping at the beginning
of sewing.
Loosen setscrew 1and move wire drawing link 2of the needle
thread draw-out solenoid to the left to increase the thread take-up
amount of draw-out pin 3. This increases the length of thread remain-
ing at the bottom of the needle eyelet. On the contrary, moving the link
to the right decreases it.
Reduce the length of thread remaining on the needle after thread
trimming when using elastic thread such as Tetoron thread and nylon
thread.
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
– 7 –
13. HAND LIFTER
In order to stop the presser foot in the raised position, turn hand lifter 1clockwise. The presser foot will
stop after rising about 5.5 mm. It can be lowered to its original position by lowering the hand lifter. When
using the knee lifter, the presser foot will rise about 7 mm.
14. ADJUSTING PRESSURE OF THE PRESSER FOOT
When nut 2is loosened and presser spring regulator 1is turned clockwise the pressure increases. When
it is turned counterclockwise the pressure decreases.
Tighten nut 2after adjustment.
In the case of general fabrics the standard height of the pressure adjusting screw is 30 mm (6 kg).
15. NEEDLE-TO-LOOPER RELATION
Adjust the needle and the looper as described below:
1. Turnthehandwheeltobringtheneedlebartothelowestpositionofitsstroke.Loosenneedlebarconnectionsetscrew1.
(Determining the needle bar height)
2. Align rst (uppermost) marker line Aon needle bar 2with the bottom end face of needle bar lower bushing 3. Tighten needle bar connec-
tion setscrew 1.
(Determining the looper position)
3. Loosen gear setscrew 5to adjust so that looper 4reaches its back end when the needle bar is at the lower point of its stroke.
4. Carry out adjustment so that the blade point of looper 4aligns with the center of the needle, so that the former is spaced 1.5 mm from the
upper end of needle eyelet and so that a clearance of 0.05 mm is provided between the looper and the needle when second marker line Bon
needle bar 2is aligned with the bottom end of needle bar lower bushing 3.
5. Loosen looper setscrew 6and looper clamping screw 7and carry out the adjustment.
6. Check to be sure that a distance of approximately 3.2 mm is provided between the center of the needle and the blade point of the looper when
the looper reaches its back end.
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
– 6 –
10. ADJUSTING THE STITCH LENGTH
Turn feed regulator dial 1counterclockwise or clockwise and align the desired
number with the pin protruding from the arm.
The numbers on the dial indicate millimeters. When reducing the indication turn
the feed regulator dial while depressing reverse feed control lever 2.
★Reverse stitching
1. Depress reverse feed control lever 2.
2. Reverse stitching is possible while the lever is depressed.
3. When the lever is released, the sewing direction will return to normal.
★Lever stopper
1. When lever stopper 3is set in a high position, a small reverse feed stitch
length will result.
2. When feed lever 2is depressed after setting the lever stopper in a higher
position, the forward feed stitch length will be reduced.
Perform the above adjustment for sewing start or for stopping stitch at sew-
ing end.
(Caution) This function is not applicable to thread trimming in the case
of reverse feed stitching.
★Adjusting the needle thread tension
When needle thread tension nut 1is turned clockwise the tension of
the needle thread increases.
When it is turned counterclockwise the tension decreases.
★Adjusting the looper thread tension
When looper thread tension nut 2is turned clockwise the tension of
the looper thread increases.
When it is turned counterclockwise the tension decreases.
11. THREAD TENSION
12. ADJUSTING THE REMAINING LENGTH OF TRIMMED THREAD
The length of the thread remaining on the needle after thread trimming
signicantly affects the occurrence of stitch skipping at the beginning
of sewing.
Loosen setscrew 1and move wire drawing link 2of the needle
thread draw-out solenoid to the left to increase the thread take-up
amount of draw-out pin 3. This increases the length of thread remain-
ing at the bottom of the needle eyelet. On the contrary, moving the link
to the right decreases it.
Reduce the length of thread remaining on the needle after thread
trimming when using elastic thread such as Tetoron thread and nylon
thread.
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
– 7 –
13. HAND LIFTER
In order to stop the presser foot in the raised position, turn hand lifter 1clockwise. The presser foot will
stop after rising about 5.5 mm. It can be lowered to its original position by lowering the hand lifter. When
using the knee lifter, the presser foot will rise about 7 mm.
14. ADJUSTING PRESSURE OF THE PRESSER FOOT
When nut 2is loosened and presser spring regulator 1is turned clockwise the pressure increases. When
it is turned counterclockwise the pressure decreases.
Tighten nut 2after adjustment.
In the case of general fabrics the standard height of the pressure adjusting screw is 30 mm (6 kg).
15. NEEDLE-TO-LOOPER RELATION
Adjust the needle and the looper as described below:
1. Turnthehandwheeltobringtheneedlebartothelowestpositionofitsstroke.Loosenneedlebarconnectionsetscrew1.
(Determining the needle bar height)
2. Align rst (uppermost) marker line Aon needle bar 2with the bottom end face of needle bar lower bushing 3. Tighten needle bar connec-
tion setscrew 1.
(Determining the looper position)
3. Loosen gear setscrew 5to adjust so that looper 4reaches its back end when the needle bar is at the lower point of its stroke.
4. Carry out adjustment so that the blade point of looper 4aligns with the center of the needle, so that the former is spaced 1.5 mm from the
upper end of needle eyelet and so that a clearance of 0.05 mm is provided between the looper and the needle when second marker line Bon
needle bar 2is aligned with the bottom end of needle bar lower bushing 3.
5. Loosen looper setscrew 6and looper clamping screw 7and carry out the adjustment.
6. Check to be sure that a distance of approximately 3.2 mm is provided between the center of the needle and the blade point of the looper when
the looper reaches its back end.
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
– 8 –
16. THREAD SPREADER
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
– 5 –
7. ATTACHING THE NEEDLE
Use a Schmets 149×7 needle.
Different needle counts are applicable. However, select an appropriate
one according to the thickness of thread and the type of material to be
used. (Nm 70 to Nm 130)
1) Turn the handwheel to bring the needle bar to the highest position
of its stroke.
2) Loosen needle clamp screw 2. Hold needle 1so that its scarf
faces toward the feeding direction of material.
3) Insert needle 1fully into the needle clamp hole until it comes in
contact with the deep end.
4) Firmly tighten needle clamp screw 2.
Attach the needle so that its eyelet faces toward A for lament thread,
or Bfor cotton thread so as to prevent stitch skipping of needle thread.
8. THREADING THE MACHINE HEAD
9. THREADING THE LOOPERS
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
– 4 –
6. ATTACHING THE BELT COVER
1. Insert belt cover support 1into the tapped hole in the machine arm.
2. Temporarily x belt cover 2on the machine head with screws.
3. Slightly tilting the machine head, put rid 3of the belt cover inside the
outer pulley and x rid 3with four screws.
4. Fix rid 3on support 1.
5. Loosen the screws in the belt cover, and adjust the position of belt cover
2properly. Then securely tighten the screws in the belt cover.
6. Fix bobbin winder cover 4with three screws.
7. Fix belt cover auxiliary plate 5 as illustrated in the gure.
(Caution) 1. When tilting the machine, loosen wooden screw 6in
belt cover auxiliary plate 5and move the auxiliary
plate in the direction of the arrow to such an extent
that it does not come in contact with the belt cover as
shown in the figure.
2. After you have raised the machine, return belt cover
auxiliary plate 5to the previous position.
5. ATTACHING THE SILICON OIL LUBRICATING UNIT
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
5
6
1
2
3
4
5
6
– 9 –
17. MATCHING THE MOTION OF THE NEEDLE GUARDS WITH THE LOOP GUIDE
18. POSITION OF THE LOOPER THREAD TAKE-UP
Loosen setscrew 4. Adjust the position of looper thread cam 1so that
wire 3is visible through guide hole Bwhen third marker line A(third
from the top) of the needle bar 2aligns with the bottom end face of the
needle bar lower bushing.
After the adjustment, verify the following.
1. When the looper thread moves off tip Cof the looper thread cam,
the needle tip fully enters the looper thread triangle.
2. In the case puckering is particularly concerned, the bottom face of
the wire aligns with the bottom end of guide hole Bslightly earlier
than the normal timing.
19. POSITION OF THE FRAME THREAD EYELET
The thread tension changes by moving intermediate thread guide 1up
and down.
The thread tension is increased by moving the intermediate thread guide
upward, or decreased by moving it downward.
In general, adjust the position of setscrew 2referring to the table below.
Thread used Scale on the intermediate thread guide
Cotton
thread
#80 to #50 2 to 3
#30 to #20 3 to 4
Synthetic
thread
#80 to #50 1 to 2
#30 to #20 2 to 3
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
– 10 –
20. ADJUSTING THE FEED TIMING
21. ATTACHING THE FEED DOG
By loosening screw 2, the tilt of the feed dog can be ad-
justed to type A (effective for reducing puckering) or type B
in addition the standard tilt.
The maximum projection of the feed dog is 0.8 mm. Use
screw 1to make adjustment.
(Caution) When the tilt of the feed dog has been
adjusted the height of the feed dog will be
disturbed.So, check the height of the feed
dog whenever the tilt has been adjusted.
Be careful not to set the front of the feed dog
too high, otherwise the looper thread may
be scratched. (Type B)
22. ADJUSTING THE PRESSER BAR HEIGHT
Change the presser bar height or presser foot angle after loosening needle bar connecting setscrew 1. After
adjustment, tighten the setscrew rmly.
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
– 3 –
4. LUBRICATION
HIGH mark
LOW mark
Oil reservoir
Oil sight window
1. Before operation, ll the oil reservoir with JUKI New Defrix Oil No.1 up to the HIGH mark.
2. Whenever the oil level drops to the LOW mark, add more oil.
3. When the sewing machine is run after the oil reservoir has been lled, oil can be seen splashing on the oil sight window. However, the
amount of oil splash has no relation to the amount of oil in the reservoir so there is no need to worry.
4. When the oil has become dirty, replace it with fresh oil. Unscrew the oil plug from the oil reservoir when draining.
5. When using a new sewing machine or one that has not been used for a long time let it idle for about ten minutes at 3,000 to 3,500 sti/min to
run it in.
(Caution) 1. Verify that the lubricating oil is properly circulating by watching it through the oil sight window.
2. Remove any fiberous dust from the oil pump filter screen and the oil reservoir.
3. When the lubrication oil has become dirty, drain it through the oil drain screw cap and fill it with new JUKI New De-
frix Oil No.1.
4. Verify that the oil level is above "LOW' mark.
5. Clean up the oil reservoir magnet with a cloth.
Adjustment of oil amount for the face plate components.
Amount of lubricating oil supplied to the face plate components such as needle bar crank 2is adjustable by turning adjusting pin 1: bring the
dot mark 3engraved on the adjusting pin close to needle bar crank 2to minimize or farthest from the needle bar crank 2to maximize the
amount of oil maximize the amount of oil.
(Caution) The oil amount does not change immediately after adjustment, so have this in mind when adjusting the oil amount.
1
2
3
Minimum oil flow
1
2
3
Maximum oil flow
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the
motor has totally stopped rotating in prior.
Table of contents
Other JUKI Sewing Machine manuals
JUKI
JUKI HZL-T100 User manual
JUKI
JUKI PS-700 User manual
JUKI
JUKI PLC-2760NV User manual
JUKI
JUKI AMS-210EN/IP-420 User manual
JUKI
JUKI AMB-289/IP-420 User manual
JUKI
JUKI DLU-5490N User manual
JUKI
JUKI MO-804 User manual
JUKI
JUKI ACF-172-1790 Technical manual
JUKI
JUKI MF-7500 Series User manual
JUKI
JUKI DDL-7000A-7 Series User manual
JUKI
JUKI LZ-2290A-SR-7 User manual
JUKI
JUKI MO-2404 User manual
JUKI
JUKI PLC-2710NM User manual
JUKI
JUKI SC-500 Quick start guide
JUKI
JUKI LK-1942ZA5050 User manual
JUKI
JUKI MO-6900 Series User manual
JUKI
JUKI HZL-G Series User manual
JUKI
JUKI LU-2810 Series User manual
JUKI
JUKI HZL-F series User manual
JUKI
JUKI FLS-350N Series Quick start guide
