Zoje ZJ757 User Manual
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SUPER
HIGH-SPEED
OVERLOCK
SEWING
MACHINE
1l m
OPERATION
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MANUAL
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PARTS
BOOK
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02
TO
THE
OPERA
02
HOW
TO
INSTALL
03
HOW
TO
OP ERATE
03 lUBRIC
Ol T
OS
THREAD
06
STIT
06
NEEDLE REPLACEMENT
07
DIFFERENTIAl
07
PARTS
10
TROUBLE
HREA
DING
CH
RELATIO~
ATI
ON
THE
TENSION
LENGTH
SHOOTIN
TERS
THE
NEW
THE
NEW
AND DRAI
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ADJUSTMENT
FEED
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ATIENTION:Becausc th
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INSTALL THE MACHINE
the machine
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110
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STtTCH
The
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Keep
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Maxi
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I : 2
I : 3
I : 1.3
I
:4
LENGTH
1eo&lh a.djuitmeot is
the
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Machine
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Shirring 0.7 I
Sctgihg
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Cover.
I
1.6
0.6
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2 2.S 3
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DIFFERENTIAL
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ADJUSTMENT( Flg.
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pper Loopor
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and
ud N•tdle
Lo,.cr
Looper
rur
l'eedle
Guard B
Loo
per
Mtt
li
slot
to check
.
for remov
is
obtai
and
oDd Lower Lopper
Ooard
and
muu be fixed iuro rhc Jowe.u p
(·~~-~·~·)·0~~.
.
tt
!iM~tt
lliBI'lMaJIIO.
I-0.2mm.
. 18
ti.llt
<19tt~
II
!j
ft
of'
(;
I&
~II!
Ill
J\J2.Smm.
Ploce
Fla
. 11
lo
tbe
hicbe.st
position, the distance between aced
stand
ard
lift
ma
cb.Jac
or
10.8·ll.Om.m
of
N
eedle
plate. The
lhe
needle
po1ot
cP
of
Needle Drive Cra nk.
~
f
oeedle
center
ing
the
needle
ned.
l'i
..
) moves
is
4.5-S.
Needle
per moves
e)
er
moves to lhc center line of
Lower Looper
Guard
poi.-:
is
0.1S·0.2mm
Needle
.ne-c between the looper point and t:em
to
O,
for I needle (spreader)
Flg.l4.15
to
the
is 3.4·
3.6m
•'
f lc
.l7
t.S
opposue
A is
Omm
. When H.!edle
.
Fta.l8
riC.ht
(richc needle
In each
co
d
l•
FI1.
tbe
extremely Jefc.
extremely
m for high
Fla.l6
crou~d
.
the
center
needle must
if
needle sJot
the high
1J
left, the
lif
t machi ne.
nee
line
moves
otilio
two
-~~~-~A~N-~0=.
It
point (leh ne
fOC'
h•ah hft. mac:hitte. Each needle
ed
ahead abouc
needle) ro needle sJor
or
1'\cedlc Plate. or you may loos
est
position. tap
lbe
to
center
distance
dle
(left
of
J\eedle
n
of
dutaoce
t.o
its
bct..,·
line
of
between looper
needle
(left
the
lowest
holder
er
tine
of
and when the Chain L
left needle is S.S·6.0mm for 2 need·
if
needle is
0.2-0.Jmm
of
che
Needle Holder Goidc
ua
the
point
2 needle). tbe gap between needle
needle
if
2 needle), the
posuioo.
2.5
I!I
edle
than
Needl
e P
llrc
of
looper (
point and ce
the
cap between
ooper
mm.
.Fig.l2
tf two needle)
mw.1
left
needle.
or
Presser
en
Scr
ew
(I)
until
che.
spreader
nter Hne
&•P
bet
..
Needle
m
ovts
of
e.ea
ro
)
-8
-
7
e A ;
l
B· 5
4.5-$0
5-60
_j
ol
•
~I
l ·
.
..
'
.___ _____
l A 0.0 I
A
llll
_·,g.l-6
0.5
__
1 \ r 0.
I ~
_.I
L
,.
-=.
! _ d l
~~I
\
N~o
rl
/
lf~-:'
<:;.
til
FIR
17
-
9-
~-
15-020
=:;
-;
-~-~'•"
(].~
2.5
!!I
Fig.
J
IS
~~~~
(!)
W/.1111!11~
(2)
ft R •t:f'ft
(3)
ttB~I'f
(.)
tt
!j
lJI
tt
11"
i'l
*
lli
!e il!
IS)
tt!i"''ttil'l3(;~1a~
16)
ttA<.A.ttl!iili!lf.U
f t~'l'!lt
~-
( l )
lUi
4ut
,
1!:
Ill Iii
Iii!
I!H3 e
(2)
;&mi1~1!il'lfa•tt8'lfltt
(3)
J!IUiU
(4)
illl!lllttll' llttll'J.):;l!i
(;)
ill•"''t
t.IIJ
ftfJX._
(6) tli.ttllillft
.
!l"!!!i.
!·
NEE
DLE
REA
SON
(I
)Needle ins101led wrong
(2)Wron.a needle size.
(3)Needle " bonded.
(4)Wroa&
!S)Wroca rdatioe wid! looper
16)Neodle
Needle
1111!1
Ill
atoll..:,; R
(2)
ttlll•
(3)
1Jtlllll
(4)
IUt!iJJ:UI
(5)
tf"l'11illll
(6
) tl:!l!iti:UI\1!
(7)
tt
ftlll:.llilli
I.
ftlt~IIIBxlt
2 .
tt
~
IU<Ift
cs>
&lllt
(9)
tt'i<lilttJICJ:)t;J>Iftil!
(10)
tt
"'latiod
does
Plaw
.
~t
BREAK
no<
or
-!'Ill
!tit
e.ea
t.
ttlli
with Needle
~nter
dle oecdle
~sser
it
11.;k
lllilll
.
ttttl!i.tti&:f:
Fool
Guanl
sloe
~
of
•
C
OKRE
<..'T
( I )Reset needle com:ctly.
(2)Use properly needle for fabric and thread.
(3)Replace new needle.
RQdju>l
(4)
(S)RQd)ust looper
RQd
16)
Needle Goard.
)oat tho l"cedle Plate and Presser Fool.
J't.
(I)
<:1:/ll&ll*fll'lll
(2)
11!1611fi'Jtt
(3)
tllli
(4)
illl!
cs> ••.a:
<&>
ilili~tU!llttftilii
(7) I :Wlt.lllilll
2 illl!lttl'l<!l·
(8)
1!1~-!lititri.O
C
9J
••u
(lO)
*11:t'-~IUiollo
~
Hl
if.
•YI'tt
&tt•ll
••n
JM:It:
t
·;~nll'l*
n m
-"
THREA
( I )Inferior quality
(2)Thread
(3)Wrona threading
D
BREAK
of
threa<l
is
thicker th.an Needle hole
-10-
COR.R£CT
(!)Use
good
(2)Usc proper
ClJRelhteadina
quality tllread.
Needle
for
c
cim:c~y
.
fabric and lhrc>d.
(4f
l'hn
:ad tension
(5)Needle
(6)
(7
)0\r
(8)
(9)Wroog n:lalioft
CIO)N
mswl<d
TI=ad
SW>cl
er
heal
or
Wrong sculn&
Tbread Dac
...Sl
e.
Looper.
b
urred
i5
t
oo
wrong
onstalled
Need I
<= l.NO
of
Needle Guard
Of
Guide
of
li«dl
l'eedle
SU'l)nJ
wrong
6iJicon
IS
bu
rred
e and Looper
Plate
and
oil2
Guide
os
(4)
Re.adju.st thread te
(S)Rcs.et
(6)
(
(8)Gnnd
(9)
(10
oeedle cnm:cly
Reset thrud s
7)l.
fill
In
Silicone oil
l . Rta.dju:n Needlt
ot!
polish
Read
ju>t Needle and Looper
)Grind
off,
poJjsh
nsion
nut
.
wd
for threading smoochly.
Guud
or
replace
new
or
replace new
<Ml<
one
.
.
IIIII
(I)
lt-"~ttll'l~f.illil
(2)
!Jiillill
(3)
tt'l<tHII
(4)
l'l!t!i
IS)
•Ht
(G)
rt~fJ
(71
llittJ
S
KtP
REASON
( I)Wroog n:labon
(l)
Wrcng
(3)
1\udlc:
(4)l
nadequate t
suoo
(~)
Looper
(6)Needle " bonded
(1)
Wrong installed Needle Ouard
II<
JJJ:
IIil..t:tl
1U&
IIIq;t.:t;~
~1C
III!Itili\
STITHCES
of
thruding
installed wrong
hrtad tension
g
pom
IS
dam~icd
Needle
aod
or t
Looper
eQO.ion
too
,..
(I)
ill
l!t
t!Jiiltt
~.
( 2 l
.l
U i if:
iUl<
tl
(3)
!!IIi
i£
~1Ut
<•l
iiU!
~tt•
a
(S)
1:;!a
:f;9..!111i.ll.
(6)
lllli
.ll.
(7)
~tlli
tiH.-I/<
1>HiiHJ.
CO
RRECT
( l)Readjonl
(l)Retlutadina
(3)Reset N
(4)Readj
(5)Rcploce
(6)Rep
(7)Readjust Needle Guard
ust
l..,.
l'ecdle
eedle
Th.rc.ad
MW
new
com<tly
one
one.
and
c<~rrceUy
Tension
.
"
Looper
.
.
Nut
• l!l
(I)
"~IO
(2) lt:
(3
)
~~IU
<•J
tt!te A:itMI
(~)
tt
UI
';tjtt
Q
l!i
tlJtll
¥11
-
II-
Jf •
U l
.il
(2)
WI
(3)
illlUl!l!liUi
(4)
¥..1uUii
(S)
i:JiiEIIU!l{
II
Jot
iE
"'
tl
ll<
!.t
J.: ·tii'Jtt
~l
UI
lifo
REASON
'.
0 )Wrons
(2)Titt<4d
(3)Tensoon
(4)Nec.dlc thread is
(5)
tltre•din&
i•
thicker than
Disc
do
not
pre
n
ot
lubricated
Wrona
>ctting of Neodlc 1nd lc<lpcn
~
:.:
die
hole
ss
thread PfOperly
CORRECT
( 1 )Relhrcadi
(l)U
(3)Re<et Tension
(4)Fill silicon oil
(S)Rudjust
n&
correctly.
sc
proper
:>leeciJe
Needle l!lld Loopers.
Disc
properly
.
;.
L
..
..
"
:f
~~
-·
-
~-
-~;r-~
l
Ui
(I)
~ttf.'l~
(2)
tllll~~'iilil:
(3)
l'Jl"~lllil!
(4)
Jl~IIUY'IIi
J.JJ
1Qift
2.
m•
<s>
.i:li:Ut
(6)
ft~:UI
(
7)
l!MA8!1~·1l
(8)
lf.I\Bi1J;UI~
REASON
(I
) W
""'i
(2)Thn:ad Stand lDIIallcd
(3)Low
er
(
4)Kni\n
I.
Knivc.s
2.
Dull
(S)Thn:ad Disc
(6)Needle
(7)lnadcquatc heigh
(8)1nackq
!W !F
•m
:
Ul
thn:adtnJ
Knife installed wr
do
not
trim
installed wrong
1ower
Kni
fe
or
Guide
point
u damated
of
Feed Dog<
ua
te
thread
ltnsion
~
·ro
neady.
i>
na
on&
bllned
)f
.
( I )
11!
i'i
tf.
liUP
tt
(2) a
Ji. tUIIf
(3) IJIJi
(4) I
lll!l
:l<tll'Jl
!UlillllHII9
JJitillfU~
2 ll.ftliUIIJi &
(S) .UitrJI':
(6)
llllift
(7)
'IC!
U .
ill
lill
(8)
lll~lfJUi:ll!lll
CORREct
(I)RclhreadlDJ eorr«11y.
for
(2)RcS<t Thn:adt
(3)Rcadjust
(4)Ccmect
I.Rcadjust Knt\'CS
2.
($)Grind off. pohsh
(6)Replace new Needle.
Readjust
(7)
(8)Rcad
Lo,.·er Knife.
as follol.:
Sharpen ur rtplact
Feed
just
Thread Tension NuL
threading smoothly.
or
Dogs
.
new Knivc.t.
rcplau
new
oac
Ill!!
o> !9.tll.l<JJxtl
( 2)
1'1'
.14/J<
)J
;1:
lll
t&.
.!:
Gil
(
3)
j)S!I!JU:~Iflttl!i
<•J JlA;tt:
(S)
(6)
(7)
!H
1
.12
.11
~
tH<d
~
ft
·~
;1:
Ill
li!~llllltttlllli~'l!
-
12
-
)f
.
0 l
!I
.II
i1Ul
l2
tlli
a:
(
2)
lllllll'l'
Jl.f.i
)J
li
a:
(3)
.IJi!MniEIIrAil
(4)
lfi"
Jlll'illllli£
(5)
II
U!~
~~4J
i!SM
(6)
lll~il:11iflltlll'JU
(7)
llll!!f!J.i!lllllillllttl!i
i'i
( I)'T'bread
(2)
(
))I
(4)knjvc:s
~5)
(6)Ncedte
(1)5<am
&cnt.ion
is
too
1oadeqoat<
nadequate height
0ifferc.nhal
off
..
finaer
do
i11
kith
of
pm..,.
n
ot
feed
too
is
Needle
trim
''
th1ck
.,.,
ot
of
QQtly
ooc
Pla
••
< 1 l "
JH<
~
111
ill
00
~HdA~~M~~~e~a,
U)
IHt tl
ft"I<
~IB
ill
w
ll<!
llft il!
(S)
lt!t.ltA::I;:il.til
(
6)
ft'Jtjftii'J:lt::
(7)
ftl!ii<";!i"~
(8) l!!
lllltl!
THERAOCHA
Aill!;;l
'l!;tl
l!l.
sli'On
l'l<.sSCt
F«<<
mllcbcd
te
g
Dog
tpUut
Foot
s
the
cha
to-
CO
RRECT
(I )ReadjUJt
(2)Readj
(3)ReadjuJI Fe«!
(4)RadjUJt
(S)Readju
(6)V,.
O)
Rudjust
finger .
Jj
.
T1lretd
ust
l'mRr
Kllivu
$1
dilf
ereo
proper Ne«<lt
aeam -,tdth
(I) 8tfi iEIII'RIIi
(2)
illl!lll
"tl\~H&
(
3)
j!
llj
iE
111
'I<
1li
(•)
~fj
JE
111#1l
(SJ
illl!
i4
'll!!
ll!I.W
(6)
illlU
t 'J<Ht
( 7 J
Jll
"lli
oii
Hi
( 8 J Ill
il>
llll~
ill
Jf.tll:l't
Tco!ioa Nvt.
Foolprcuure.
Dot•
·
Of
slwpeo
tl&
l f
eed nt.io.
for
fabric
or
li'
J*
~
t1
Ill
M i
KlliVCL
lAd
lluud
tq)lace chalo
lt
.
off
t
'
REASON
( 1 )Preucr
(2)
CJ)Oouble Chain Looper ins
(4)
(
')Inadequate
(6)Wrong relation of Needle and
(71
(IUTh.
f'ooc
1n.adequate
Wront
tluudin1
S<cdle
Pia,. ThRtd o;..,
burred
.
read
ccns.ioo dJJk
imulled
timma
or
t
OO
of
Looper
nr
i.5
•roaa
on&
roua
Th.read
(.al
led v.rong
lhread tel'
Of
h.
IN;.er
l'ml<f
Ca
m
~i()
n
Fool
CORRECT
( I)ReS<t Pruo<r FooleorTectly.
(2)Readjtut
(3)
R<S<t
<• J
R<Ihrtad1liJ
(3)
Rudjus Thread
(6)Readjust Needle ood Looper
Is
-
C7)0rind nff, potis.b
(8)P
IS
-
ohsb
Loo
per dtread Cam.
Double
<Om>C:O
thread
len
Clwo
Tcnsloo
or repl
.:<li
on
Looper
y.
Nut
ace.
disk
e«recd
new one.
y
If·
~
'"
YTC8'1
I
YTi\04
2
YTAOS
3
YTAO<>
4
YTAOS
~
YT
0
7
YTAIO
M
YTAI2
Q
\HI~
10
YIA~2
II
YT
12
YTA2.S
13
YTA27
14
Y'iA2S
YT~'I
IS
16
YTA33
YTA.lo
17
n
YTAJM
'I
I
YTA39
YrMo
20
21
YTA42
YTA:ll
n
21
YTA24
14
\1P0'
\'To\65
2S
YTA67
26
27
YTA84
tP:
p-..,.
Afl'l
<\25·1
"o
2
~lrl
til:umbcn
¥
•
ffbt
I
+\.,._·,'.;1'~
r
l>~
I
\l~l1'
1 ·JU:i\ blhc
ttffffi
I
'nl~H
l'l:ii
IU!
All~~
l!l!H
/iiJ!II(
fi
olHit.I!H
IIUi
~bll~
l!i.~
~tl
IM'!IA'
fi"Hli
"l+lll
ll!il!Jl•i
F'l'
1>-<mp
madun.!
Offill• thrc!d
IIJ)f>C1"
oncdc oo>rr
upper
oncde
.~~tu
Oc<dlc
ur~r
c>tl
ruht I I I
RarCUI
ad:tk,:_,r,e
ozl
ft:llCU\.:T
re.u-
CO\Cf
('OVer I I I
oil
'Oe.U
ttnt!r
,.,..u.r.-:r
"'"1
m:"hmt
model
model
PIO
or I screen
~nne
frame
0>\.,.
Cu\cr
uprn
riJIL
\\d:ShCr
s.cal
Vii
.;nf
wL-her
lllh<
pL.u-
pJd
k.noc
~
pill<
'1 ' •
Thret· r
hreod
Fut~r·rhrend
I I I
I I I
I
I
I
I I I
I I I
I 1 I
I I I
I I I
I I I
I I I
I I I
~
~
I
I I I
2
I
' •
I I
I I I
'"\c
I I
I
I
I I
IIIII". od <e>ll I I I
ti~Hil
•I
u~·,
Ji~
ill!J..t
i>f!li'
011
seal u
l>tgm
pm
or.ldc
mart<
rhte
t>tl
wol
l'll3d
piJte I I I
I I I
~
I I I
I I I
4 4
·
rt
!'wNhreaJ
I
I
4
2
I
S30'
5292
2
)
S2'l0 t,
4 sm ltjiiH'iWtiiiiJ
s
'>.21~
(>
~))·
7
S268
N26
8
.,~,1
9
10
~261
II
'>401
1:
W23
13 \\02
14
S-100
Sltl8
IS
1
·..:1.\.!Utf
l,.l!.'Wtl
lfJ!trl.
H H
:f.
:A:ll'•l!Hfi
t !
>.!
1;1
:id''
l'(
11
[lj
;,:
..
~i\'!ntlllfJ
J,lit'ijj.'j-l\Cf:J
"'*
!'itriJ
1.1ltilftl
~/.'iii!'.
i!i!Ciii:f'~
>1
•
tt;
~lll.l,tttw
WIT
itdf! rill'
;;~uw.tr
-If
fi
I
_.;:ft
If
needk
ll<Cdlt
oetdk
tt
If
!f
151
-4-I'BI)'I
rhreod
~
lhn:od
m:un
CO\·er
nwn
cu
..
cr
R.af
lm,trcu,,rr
Nf
pan
da~ucJt)
n~a,..,•n
}
\!1.~:
o-
-14-
bcann!l
$Ctel'
sere"'
bar
.&s.m
ltnd
'o<l
..,,.,.
co<er
pl>tc
rc:t!ulrttr.:
be-.uing
t."'\
tr
rlatt
pl:ue
JOlR
~rew
~
....
.Jxo,
\lrJ•.llcr
'"Od..<r
;m:w
'./.
,..,(l!Vro
\CICW
plat<
mp
"II. I I
.
.a
Ktc•·
SC:rt~
r..:r..dJt-:
nuc
~re·A
.,
.-1
1 4
1 ) 1
2
I
I
2
I 1
I I
I I
I
11
I
11
2 : 2
~
~
4 4 4
4
I I I
.~
•
II
4
~
~
~
4
2
I
I
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4
4
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0
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-15-
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