Sii
E •
~
.:II
~~-'./
PARTS
JW-SBLC-20 JW-28BLC-20
JW-SBLC-20-BTFL
JW-SBLC-30
JW-SBLC-30-BT
JW-SBLC-30-BTFL
JW-8BLC-30R-BTFL JW-28BLC-30R-BTFL
THREAD TRIMMER
AUTOMATIC REVERSE FEED
1)
~"
LIST
JW-28BLC-20-BT
JW-28BLC-20-FL
JW-28BLC-20R
JW-28BLC-20R-BT
JW-28BLC-20R-FL
JW-28BLC-20R-BTFL
JW-28BLC-30
JW-28BLC-30-BTFL
AUTOMATIC FOOT LIFTER
CLOTH PULLER
• SEIKO SEWING MACHINE CO.,
LTD.
*'
\-'Y'JA.HiJw~:,.,:,0)*-1;7JLJ,
JW-8BL-2G-1/JW-28BL-20-1/JW-8BL-30-1/JW-28BL-3G-1
~;h,
""(t;)LJ*"t
JW-28BL -20-1 I JW-8BL
o
1/t~
'*L
""C,
*J\-'Y1JA.~~;:"~Jffl~:h..~tl~l;t,
-30-1
'\·;.~??·;.~?,
I JW-28BL -3G-1
~JJ.Jtfl!~..t.lf,
(/)I
\-'Y1JA.~~Fals:tl::;:"f!Jffl(t;:~~
:1-7-*IMm-c:-t o
t;.O)~il$~1;t~~
JW-8BL
-20-11
'o
This is
mechanism of JW machines. Common parts are indicated on
JW-8BL-20-1/JW-28BL-2G-1/JW-8BL-30-1IJW-28BL-3G-1. Refer
parts list of JW-8BL
together when you use this parts list.
the
parts list for thread trimmer, auto back tack, auto foot lift, cloth puller
the
parts list
-2o-1
I JW-28BL
-20-1
I JW-SBL
-30-1
I JW-28BL
to
the
-30-1
of
t.rx
±
HOOK
t.r-x
±
HOOK
-EJ-
< ;tJ)
..
trx
SADDLE (RIGHT), HOOK
-EJ-
<
'-i: ) ..
tr-x
SADDLE (LEFT),
HOOK
§~
CONTENTS
I.
I
.0
••••
e
I I I
••
Ill
I I
Page
••••
e.
I'
• • e e e • e e e I I I I o I I I I I I I I 1 f 2
I.
I I I I
I.
I I I I I I . I I I I I I t I I I I I
I.
3,
4
*i;JJLJ'Jv/1'F,;£.A??:..-?
THREAD
'Y31':..-~
JOINT, JOINT CONNECTING
:f-1)-,
MACHINE
~+1&
THROAT PLATE,
I
\·/?1l·/?ffiH~
AUTOMATIC
13iJ.Jtffl;tl:.lfmif~
AUTOMATIC FOOT LIFTER
Cl-'5-(l'),
ROLLER
Cl-?-(1:.),
ROLLER
TRIMMER
..
'Y31':..-~~
~~
PULLEY,
..
fqij;&
REVERSE
KNIFE,
..
IDIJ.::F-1&
THREAD TAKE-UP
BED
SLIDE
FEED
0-7-~LJ*'IJ,
(LOWER),
ROLLER
7-.L.O-?--Ei'
(UPPER), ROLLER BASE
DRIVING
ROD
MECHANISM
FEED
.. · ..
· · · · · · · · · ·
KNIFE
CRANK
1111.1.1111
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LEVER.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TENSION
e I I I
....
· · · · · · · · · · · · ·
I.
I I I I I e 1 I e I I I e I I I I I I e I I
..
BRACKET
· · · · ·
9,
11
5,
7,
, 12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13, 14
MECHANISM
. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15, 16
?'5•/=f-· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 17, 18
SHAFT,
FEED
CLUTCH
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19, 20
6
8
10
7-.L.a-?--El'
ROLLER
7-.1'·/=f,
SWITCH,
~J±M1*1
AIR
~J±Mi*2
AIR
fg-~~1
BASE, PULLER CYLINDER
:::::J-F
CABLE
PRESSURE
PRESSURE
..
"1-?-~'J:..-;r
..
_ · ·· · · ·· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MECHANISM 1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27. 28
MECHANISM 2
I I I I I I I I I I
I.
I O I
I.
I e I O O I I O O
ACCESSORIES 1
f;j-~~2
IIIIIIIIIIIIO
1110e
• o I I I e o
ACCESSORIES 2
~ •<>
'/
TABLE
::~:.
-
':/;:r..~
OF
GAUGE
PARTS
0
O I I I O O I
lo
oeooeeO
01
I I I 2
OIIOI
21.22
23
, 24
25 26
11
30
• 2
n-x
±.g. (1:1)
HOOK
16~
--~-,
SADDLE (RIGHT), HOOK
"nx
17
43
37
__
/
_
38~
39
-1-
:t.r'<'
±it
(
15)
..
:t.r'<'
HOOK SADDLE (RIGHT), HOOK
f§B~~~
No.
PARTS
1
70762
31092
2
70763
3
4
70764
5 70765
6 70782
7 27174
70784
8
9 70783
10 70780
11
70781
12
2067
13
70779
14
70777
15
70778
16
70769
17 70770
18
70773
19
11176
70761
20
21
27174
22 70760
23 70758
24
70756
25 11176
26
70757
27
27170
28
10559
29
90625
30 70774
31
27171
32 70775
33 70144
34 10646
35
10647
36 70772
37
15092
38 70776
15007
39
40
15093
41
15094
42 10629
43
70516
44 70770-01
45
70770-02
46
70140-3A
47
70140-3B
16407- 04
48
49
70104-05
50
70140-06
51
70140- 10
70140-11
52
53
70140-12
54 70140- 19
0
N
I
0
No.
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* *
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~:I:
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:b.
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THREAD RETAINING PIN BRACKET
SCREW
THREAD RETAINING PIN
SCREW
THREAD RETAINING PIN SPRING
FIXED KNIFE BRACKET (LOWER)
SCREW
FIXED KNIFE BRACKET SPRING
FIXED KNIFE BRACKET PIN
FIXED KNIFE BRACKET (MIDDLE)
PINCH SCREW 9/ 64 X 40 L=8
SCREW
FIXED KNIFE BRACKET (UPPER)
FIXED KNIFE
SCREW
BOBBIN
HOOK COMPLETE
HOOK BUSHING (UPPER)
SCREW
DRIVING KNIFE
SCREW
DRIVING KNIFE SHAFT
DRIVING KNIFE SHAFT BUSHING (UPPER)
DRNING KNIFE SHAFT BUSHING (LOWER)
SCREW
DRIVING KNIFE SHAFT COLLAR
SCREW
SCREW
WASHER
BOBBIN CASE OPENER LEVER HINGE P
SCREW
OIL RESERVOIR SPACER
SCREW
SCREW
WASHER
HOOK SADDLE (RIGHT)
HOOK SADDLE GASKET
OIL RESERVOIR (RIGHT)
SCREW
OIL REGULATING DIAL
0- RI
SCREW
MACHINE SUPPORTING
HOOK
BOBBIN CASE
HOOK GIB (A)
HOOK GIS (B)
SCREW
NEEDLE GUARD
SCREW
BOBBIN CASE TENSION SPRING
SCREW
BOBBIN CASE TENSION REGULATING SCREW
FELT
M4 x 0.7 L=12
11
M4 x 0.7
7/ 32 x
6.75 x
9/ 64 x 40 L= 1 0
NG
DESCRIPTION
/ 64X40
L=l
0
11
/ 64 X 40 L=6
1/ 8 X 44 L=5.2
7/ 32 X 32 L=5.5
M4X0.7
7/ 32 X 32 L=5.5
M5 X 0.8 L=6
M4.5 X
M5 X 0.8 L=10
1/8
L=10
32
L=8
32
L=21
24
L=28
X 40 L=8
rN
BOLT
-2-
:h
-x
±.g.
HOOK SADDLE (LEFT), HOOK
Cli:)
..
:tr~
17
1---
ClD
4~
~36
---------37
39
HOOK
SADDLE
(LEFT),
HOOK
ml~il~
No.
PARTS
1
70762
31092
2
70763
3
4
70764
5 70765
6 70782
7
27174
8 70784
9 70783
10 70780
11
70781
12
2067
13
70779
14 70777 -
15
70778
16
70769
17
70770
18
70773
19
11176
20 70761
21
27174
70760 -
22
70758
23
24
70756
25 11176
70757
26
27
27170
28
10559
29
90625
30 70774
31
27171 -
32 70906
32 70984 -
33
10524-G
34
70907 -
35 28031 -
70905 -
36
36 70983
37
15092
38 15521
39
15007 -
40 15093
41
15094
42 10629
43
70770-01
70770-02
44
45
70140-3A
70140-38
46
47
16407-04
48
70104-05
49
70140-06
70140-10
50
70140-11
51
70140-12
52
70140-19
53
No.
0
0 N
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A
B
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-
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THREAD RETAINING PIN BRACKET
SCREW
THREAD RETAINING PIN
SCREW
THREAD RETAINING PIN SPRING
FIXED KNIFE BRACKET (LOWER)
SCREW
FIXED KNIFE BRACKET SPRING
FIXED KNIFE BRACKET
FIXED KNIFE BRACKET (MIDDLE)
PINCH SCREW
SCREW
FIXED KNIFE BRACKET (UPPER)
FIXED KNIFE
SCREW
BOBBIN
HOOK COMPLETE
HOOK BUSHING (UPPER)
SCREW
DRIVING KNIFE
SCREW
DRIVING KNIFE
DRIVING KNIFE
DRIVING KNIFE
SCREW
DRIVING KNIFE SHAFT COLLAR
SCREW
SCREW
WASHER
BOBBIN CASE OPENER LEVER HINGE PIN
SCREW
/ 4")
HOOK SADDLE
HOOK SADDLE SHAFT
SCREW 6.
HOOK SADDLE SHAFT BRA.CKET
SCREW
HOOK SADDLE (LEFT) {
HOOK SADDLE
HOOK SADDLE GASKET
OIL RESERVOIR (LEFT)
SCREW 9/ 64 x
OIL REGULATING
0-RING
SCREW
HOOK
BOBBIN
HOOK
HOOK
SCREW
NEEDLE GU
SCREW
BOBS
SCREW
BOB
FELT
M4X0.7
11
M4X0.7
7/32
M5 X 0.8 L=6
4.5 X 32 L=8
CASE
GlB
Glo
C
B
CASE
DESCRIPTION
L=12
/ 64X40
L=10
9/ 64 X 40 L=8
11/64
X 40 L=6
1/8 X 44
M4X0
7/ 32 X 32 L=5.5
M5X0
75
M6
1/ 8 X
ASE
L=5.2
X 32 L=5.5
.7 L=10
SHAFT
SHAFT
SHAFT
.8 L=10
SHAFT
x 24 L=6.5
X 1
L=14
(LEFT ) (2" -2- 3/8-)
40
L= I 0
DIAL
;!
Q
L=S
(A)
(B
ARD
TE
PIN
BUSHING (UPPER)
BUSHING (LOWER)
(
-1-3
/ 4")
(2"
-2-3/8")
-J-3/4
::J
=
n)
~
--
I
-
*~~J/v/1~',
;J.A.'J7":/'J
THREAD
TRIMMER
14
KNIFE,
DRIVING
KNIFE
CRANK
3~
6
27
~
-5-
~20
lfttJ.JLJ'Jv/1'~'
..
;J."A'J7':/'J
THREAD
$~iiiS-
No.
PARTS
1 30102
2
30122
37713
3
6031-01
4
30105
5
6 30124
7
70742
8
30068
9 13076-01
10
38158
11
50409
12
70737
13
35034
14
70754
15
70739
16
70741
17
70740
18
4070
19
38149
20
70745
21
70746
10636
22
23
70747
70748
24
25
13076-01
26
70749
27
70738
10571-G
28
29
70743
30
18065
31
27186
32
70744
33
30075
34
30078
TRIMMER
0 0
N
No.
0
N
0
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co
co
*
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0
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KNIFE,
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*
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DRIVING
~~
QTY
ttt;JJL)'Jv/1'H24V)
1
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1
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1
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2
2
1
1
1
2
1
1
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1
1
1
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1
1
2
1
4
4
1
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2
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I-.A?7:..-?.AI--•/J\I-.A?7:..-?.AI--'/J\-ltd)td.t.
1-.A'/7"./.?.A
KNIFE
/
1'j.:'lb~')td.L.
/
1'j.:'~:lEf<d)td.t.
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td.
L.
7-·/1--
/ 1'j.:'-2i'ltd)td.L.
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1--
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1
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THREAD TRIMMER SOLENOID (24V)
SCREW
THREAD TRIMMER SOLENOID BASE
SCREW
PIN
RETAINING
DRIVING KNIFE CRANK CONNECTING LEVER
HINGE
NUT
SCREW
NUT
DRIVING KNIFE CRANK
SCREW
SPRING WASHER
DRIVING KNIFE CRANK
DRIVING KNIFE CRANK SPRING
DRIVING
SCREW
PACKING
SPRING
SCREW
NUT
DRIVING KNIFE CRANK ROLLER
SCREW
NUT
WASHER
THREAD TRIMMER CAM
SCREW
DRIVING KNIFE CRANK GUIDE
SCREW
WASHER (M5)
DRIVING KNIFE CRANK STOPPER
SCREW
WASHER
M3 X0.5 L=6
11/64
RING
SCREW
15/64X28
M6
X 1 L=20
KNIFE CRANK SHAFT
M5
X0.8
STUD
7/32X32
6.
75
X 24 L=20
M5
x 0.8 L=14
M4 x 0.7
DESCRIPTION
X 40 L=8.3
FRAME
L=5
L=8
-6-
~31'JI--
JOINT, JOINT
~--
'
:/
31':,
. CONNECTING
"4-.:£
~
ROD
19
20~
~
~17
18
16
12
.·
14
-7-
~31':,ti--
..
~31':,t!--~
JOINT,
No.
1 70751
2
3
4
5 70752
5 70922
6 11412
7
8
9
10
11
12
13
14
14
14
14
15
16
17
18
19
20
21
22
JOINT
fffl~ii~
PARTS
70753
11412
70754
70755
28076
70751
70753
11412
70754
70918
70917-A
70917-8
70917-C
70917-D -
70915
70916
70914
70753
11412
70754
70913
28076
No
CONNECTING
0
N
0
N
I
0
0
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co
co
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*
*
*
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-
* * *
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2
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1
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1
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2
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1
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3
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1
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1
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1
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1
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1
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2
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1
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1
'Y3-(:,.,-t-;td.t.:~~~:,.,-~?~~~-
1
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1
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1
JOINT
SCREW
NUT
SPRING WASHER
JOINT CONNECTING
JOINT CONNECTING
NUT
DRIVING KNIFE ARM (RIGHT)
PINCH
JOINT
SCREW
NUT
SPRING WASHER
SCREW
DRIVING KNIFE SHAFT CONNECTING ROD
DRIVING KNIFE SHAFT CONNECTING ROD (SHORT)
DRIVING KNIFE SHAFT CONNECTING ROD (MIDDLE)
DRIVING KNIFE SHAFT CONNECTING ROD (LONG)
SCREW
NUT
JOINT
SCREW
NUT
SPRING WASHER
DRIVING KNIFE ARM (LEFT)
PINCH SCREW
M6X1
SCREW
M6Xl
M6X1
M6X1
M6X1
M6
X 1 L=18
L=50.0
L=50.0 (LEFT -HANDED SCREW)
M6X
DESCRIPTION
ROD
ROD
(1-3/4"
1 L=18
-2-1/4")
-8-
-:/-IJ-
MACHINE PULLEY, THREAD TAKE-UP LEVER, TENSION BRACKET
..
::Rff
..
gWJ-T-1&
20
5
6
8
-9-
14
·::f-1)-
..
;R~
..
~~.:r:t&
MACHINE
$~*%
No.
PARTS
1 70705
70706
2
70726
3
4
70713
70716
5
6
70715
7
8064
8 70707
70903 -
8
70712
9
10
6603
11
70711
12
11067
13
70222
14
70831
15
70708
16
10679
17
70832
18
70709
19
70710
20 10679
21
70720
10685
22
70721
23
24
70722
25 70723
26 70797
27
28031
10599
28
29 11154
30 13084
31
11006
13076-02
32
33
11006 -
34
13076-02
35
30169
36
30170
37
31208
PULLEY,
0 0
0
C\1
C\1
I
I
0
0
No
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co
co
co
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:1&:1:
QTY
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
3
3
TAKE-UP
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:ffttttt:":..-:.!d.t.-T·;;f- NUT
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ri:.!d.~l%:
TENSION
MACHINE PULLEY
ARM SHAFT BUSHING (REAR)
THREAD
TENSION RELEASE SOLENOID
PACKING
TENSION RELEASE SOLENOID BRACKET
SCREW
TENSION BRACKET COMPLETE
TENSION BRACKET COMPLETE
SPACER
SCREW
THREAD CONTROLLER SPRING STOP
FLAT SPRING
TENSION
HINGE SCREW 3.4X36 L=2.5
SPRING
MANUAL TENSION
SPRING
HINGE SCREW 3.4X36 L=2.5
THREAD GUIDE PLATE BASE
SCREW 3.4X36 L=6.5
THREAD GUIDE PLATE
THREAD GUIDE PLATE SPRING
SCREW 1
SPRING HOOK BRACKET
SCREW
WASHER
SPRING HOOK
NUT
ARM
NUT
ARM TOP THREAD GUIDE (REAR)
NUT
ADAPTORFORSYNCHRON~ER
SCREW
SPRING LOCK WASHER
BRACKET
DESCRIPTION
TAKE-UP
11
/64X40
9/64X40
SCREW
RELEASING PLATE
/8X44
M6X1
L=14.0
TOP
THREAD GUIDE (FRONT)
M4 x 0.7
LEVER
L=4.0
L=19.0
STUD
RELEASING PLATE
L=16.0
-10-
~ttli
..
1EJ
~
THROAT PLATE, BED SLIDE
JW-8BLC-20
JW-8BLC-30
3
~
JW-28BLC-20
JW-28BLC-30
4
--------5
i------
6
13
12
-1 1-
------7
10
~t
1&
..
1EJ
1&
THROAT
PLATE,
BED
SLIDE
• JW-BBLC-20/ JW-BBLC-30
'tfll~ift:~
No.
PARTS
1
70729
6031-01
2
70733
3
4
70731
5
70732
6 10668
7 70730
8 70118
9 23350
10
70734
11
6031-02
12
70735
13
70736
14 70728
15
70830
No.
0 0
N
0
N
I
I
()
()
_J
_J
Ol
Ol
co
N
co
I I I I
-
*
-
*
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*
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*
-
*
-
*
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*
-
*
-
*
-
*
-
*
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*
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*
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*
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*
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co
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co
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-
-
-
-
-
-
-
-
-
-
-
-
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-
~-
QTY
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1
$t
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2
1
1
1
1
1
2
1
1
2
1
2
1
1
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~~
DESCRIPTION
THROAT PLATE
SCREW 11/ 64X40
BED SLIDE (LEFT)
BED SLIDE (RIGHT)
PIN
BED
SLIDE SPRING
FEED
DOG
SCREW M3X0.5
SCREW M3X0.5 L=7.5
FIXED KNIFE COVER
SCREW 11/64X40 L=7.2
BED
SLIDE SUPPORT
SCREW 1
VIBRATING PRESSER FOOT
LIFTING PRESSER FOOT
/8X44
L=7
L=8
L=4.3
.2
.0
• JW-28BLC-20/ JW-28BLC-30
'tfll~ift:~
No.
PARTS
1
70930 -
6031-01
2
3 70960
4 70950
5 70732
10668
6
7 70940
8 70118
9 70909
10
70908
11
70910
12
10636 -
13
12408
No.
0
C\1
0
N
I
I
()
()
_J
...J
Ol
Ol
co
co
C\1
I I I
*
-
*
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*
-
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*
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*
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*
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-
*
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*
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0
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()
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co
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*
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QTY
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1
~H&.lt.&':l:td.L.
2
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1
1
1
1
1
3
1
1
1
1
2
(J.i:) (3/
~
tfi
(
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LJ
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~~
THROAT PLATE
SCREW
4")
(3/
4")
"El'~.lt.&':l:td.C
BED SLIDE (LEFT)
BED
SLIDE (RIGHT)
PIN
BED SLIDE SPRING
FEED
DOG
SCREW M3X0.5 L=8.0
FEED
BAR
FEED
BAR CRANK
SCREW 6.75X24
NUT
SCREW 6.75X24
DESCRIPTION
11/64X40
L=7.5
L=7.2
(3/4")
(3/4")
-12-
I
\•:;?~·:;?~ff4
AUTOMATIC REVERSE FEED MECHANISM
----6
10-----/
2---
7
12
-13-
26
AUTOMATIC
'8-B~*'iS-
No.
PARTS
1 70805
70794
2
70795
3
4
70806
70796
5
31204
6
7
70567
10
70804
11
70799
12
70800
13
28070
14
70801
15
70165
16
70802
17
70803
18
70167
19
70124
20 10754
21
70166
22
70168
23
11185
24
70122
24 70375
70123
25
13033
26
27
70058
10754
28
70059
29
30
11185
No.
REVERSE
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MECHANISM
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DESCRIPTION
BACK
TACK
CYLINDER SPRING
BACK
TACK
CYLINDER
BACK
TACK
CYLINDER BRACKET
SPRING PIN
PIN
RETAINING RING
JOINT (ELBOW)
NUT
SPACER
NUT
JOINT
FEED
REVERSING LEVER SLIDE
HINGE SCREW 15/ 64X28
NUT
NUT
FEED
REVERSING CRANK (REAR)
PINCH SCREW 6.75X24 L=16.0
FEED
REVERSING LINK
HINGE SCREW 7.85X20
NUT
FEED
DRIVING ROCK SHAFT
FEED
DRIVING ROCK SHAFT
FEED
DRIVING ROCK SHAFT COLLAR (REAR)
SCREW 13/ 64X32 L=5.0
FEED
DRIVING ROCK SHAFT CONNECTION
PINCH SCREW 6.75X24 L=16.0
NEEDLE BAR ROCK FRAME CRANK CONNECTION
NUT
BLOCK
L=40
-14-
13113
:tEfl
;t
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If~
flij
AUTOMATIC FOOT LIFTER MECHANISM
4~
-15-
Ellb
ilJ1
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If
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t.
AUTOMATIC FOOT LIFTER MECHANISM
ftB~:ti-9
No.
PARTS No.
1
70555
2 30711-01
30711-02
3
4
70567
5 65013
8 70557
70580
9
10
28076 - -
11
70593
12
37031
13
28031
14
10599
15
70594
16
37100
17
10599
18
70556
19
30715
20 4839
21
70554
22
70085
23
70136
24
10516
25
10517
26
70060-A
27
70061-A
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(Ill.-*)
(SC3W-6-6)
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DESCRIPTION
FOOT LIFTER CYLINDER
CUSHION RUBBER (UPPER)
CUSHION RUBBER (LOWER)
JOINT (ELBOW)
JOINT
(SC3W-6-6)
FOOT LIFTER CYLINDER BRACKET
FOOT LIFTER CYLINDER SUPPORT
SCREW
FOOT LIFTER CYLINDER BRACKET
SCREW
SCREW
WASHER
FOOT LIFTER CYLINDER SUPPORT
SCREW M6X1
WASHER
KNUCKLE
PIN
RETAINING RING
FOOT LIFTER LIFTING LEVER
HINGE STUD
SCREW
SCREW
NUT
PRESSER BAR SPRING
PRESSER BAR SPRING (AUXILIARY)
M6X1
L=18.0
M6X1
L=16.0
M6X1
L=14.0
L=10.0
6.75X24 L=13.0
STUD
1/4X32
-16-
lJ
-5-
ROLLER (LOWER), ROLLER
CF)
..
lJ
-5-*
LJ
fiB
..
FEED
?7':JT
SHAFT,
FEED
CLUTCH
3
15
35---
-17-
D-"3-(l'),
D-7-~LJ,ib
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?7'/7-
ROLLER
No.
PARTS
6031-01
1
2 70509
70518
3
70512
4
10766
5
70510
6
21112
7
\
'
21138
8
21141
9
10 21140
11
10566
12
70511
13
21112
14 21138
21141
15
16
28042
17
2067
11097
18
70531C
19
20 15909-01
21
15909-02
22
15909-03
15909-04
23
15909-05
24
15909-06
25
15909-07
26
27 15909-08
28 15909-10
29 70531
35999
30
8044
31
8013
32
28043
33
34 70526
70529
35
70528
36
37 4529
38 35054
39 28007
40 70525
41
10566
60100
42
70530
43
(LOWER)
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CLUTCH
SCREW
ROLLER COVER
ROLLER FEED SHAFT
ROLLER (LOWER)
SCREW
ROLLER FEED SHAFT BASE (LEFT)
SCREW 6.75X24 L=25.0
PIN
NEEDLE BEARING
ROLLER FEED SHAFT
SCREW
ROLLER FEED SHAFT BASE (RIGHT)
SCREW 6.75X24 L=25.0
PIN
NEEDLE BEARING
SCREW M5X0.8 L=16.0
SCREW
SCREW PACKING (BRASS)
FEED CLUTCH COMPLETE
FEED CLUTCH BODY
FEED CLUTCH (RIGHT)
FEED CLUTCH (LEFT)
FEED CLUTCH ROLLER GUIDE
FEED CLUTCH ROLLER
FEED CLUTCH PIN
FEED CLUTCH SPRING
FEED CLUTCH COLLAR
FEED CLUTCH STOP PIN
FEED CLUTCH CRANK
SCREW
SCREW
SCREW 15/64X28 L=6.5
SCREW
FEED CLUTCH CONNECTING ROD
HINGE SCREW M8X1.25
NEEDLE BEARING
WASHER
WASHER
NUT
FEED CLUTCH DRIVING CAM
SCREW 1/ 4X32 L=5.5
NEEDLE BEARING
11/64X40
1/4X32
1/4X32
11/64X40
M6X1
1/8X44
M6X1
M8X1
L=6.0
L=10.0
.25
DESCRIPTION
L=7
.2
L=7.0
COLLAR
L=5.5
L=6.0
L=6.0
L=9.5
-18-
[J--
7-(_l:),
ROLLER (UPPER)
7-.L.o--
.b.
, ROLLER BASE
7-~::::~
8
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ARTS
NO.
21
116
•
70
502
. 7
05
01
211
12
18859
7
050
3
,
705
04
107
66
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1
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REGULATING
ROLLER PRESSER
ROLLER BASE
SCREW 6.75X24 L=25.0
PIN
ROLLER PRESSER
ROLLER PRESSER
SCREW
LEVER CONNECTION
SCREW
WASHER
PIN
ROLLER PRESSER
HINGE SCREW 5/
WASHER
ROLLER FORK
SCREW 1/ 4X32
ROLLER (UPPER)
ROLLER PIN
NEEDLE BEARING
SCREW 7/ 32X32 L=5.5
1/4X32
1/4X24
THUMB
BAR
BAR
BAR
L=7.0
L=11.0
BAR
16X24
L=S.O
DESCRIPTION
SCREW
SPRING
BRACKET
LIFTING LEVER
L=19.5
COMPLETE
-20-
7-AC-7-~,~-7-~~~~
ROLLER BASE, PULLER CYUNDER
--~
10
I
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:::-
--
----
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.\
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P
ULLER
CYLINDER,
ROLLER
BASE
$aMi~
PARTS NO.
30711
70552
30066
70551
'
-
30714
30715
4839
!70
553
70
567
-
170
566
f-
Ill
d;
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0
0 0
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)
PULLER
PULLER
SCREW
ROLLER
KNUCKLE
PIN
RETAINING RING
LEVER
CONNECTION
JOINT (STRAIGHT)
JOINT (
ELBOW)
DESCRIPTION
CYLINDER
CYLINDER
M5X0
.8
L==12
BASE
BRACKET
.0
-22-
'A4':;7-,
::~-~'
SWITCH,
CABLE
A-1
•:;=f-'
::J-~
SWITCH,
~dMit~
No.
PARTS
70789
1
70788
2
70787
3
4
27174
39295
5
39296
6
30151
7
8 70822
70827
9
10
30022
10
30625
11
8040
30025
12
13 70810
14 70811
15 70812
70812
15
70813
16
70813
16
17 70820
70821
18
70817
19
70819
19
19 70816
19 70818
20
30022
20
30022
20
30625
20
30625
8040
21
21
8040
22
30025
22 30025
23 B153969
24
BS03815
30186
25
60466
26
27 60479
28 60543
29 70833
40582-02
30
31
70813
70814
32
70815
33
34
70812
35
30625
36
8040
37
30025
38 70809
38 70588
39
38013
40
30022
40
30022
41
8040
41
8040
42
30025
42
30025
43
30186
CABLE
0 0
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N
I
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0
0
--l
--l
CD
CD
co
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N
0
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CD
co
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co
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No.
- -
- -
- -
- -
- -
-
- -
- -
*
* *
-
* *
* *
*
*
*
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*
-
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-
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AIR
PRESSURE
1
MECHANISM
1
JW-SBLC-20-BTFL/
JW-28BLC-20-BTFL/
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8JW-8BLC-20-BTFL/JW-28BLC-20-BTFL/JW-8BLC-30-BTFL/JW-28BLC-30-BTFL
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No.
PARTS
30727
1
30733
2
70566
3
4 30744
30728
5
30729
6
7 30730
28578
8
9 10599
40558
10
11
30720C
70567
12
13
30720-02
14
8130
70566
15
16
70569
17
70570
70573
18
18
70595
19
70574
70596
19
20
30750
21
30747
22
30747
23
30151
30186
24
25
30185
70724
26
27
8040
30025
28
30750
29
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PARTS
30727
1
30733
2
70566
3
30744
4
30728
5
30729
6
30730
7
28578
8
10599
9
40558
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13
30720-02
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14
70566
15
70569
16
70570
17
70573
18
18
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70574
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19
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20
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21
70598
21
30750
22
30747
23
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24
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25
30151
26
30186
27
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28
30185
29
30750
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No.
rul~=i=iS-
1
2
2
3
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
20
21
22
23
24
24
25
25
25
25
26
26
27
28
28
29
29
PARTS
8132-A
N3324
N3324
70769
70769
19473
8121
8120
8118
19462
11171
6052
11169
11170
10747
19456
19457
19458
19459
19460
8125
11193
13079
70197
10947
35254
70377
7051
70171
70517
6055
6055
70766
70761
70761
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DESCRIPTION
ACCESSORIES
NEEDLE
NEEDLE DYX3
BOBBIN
BOBBIN
SCREW
SCREW
SCREW
SCREW
DOUBLE
MACHINE
MACHINE HINGE CONNECTION
BED
BED
WRENCH
WRENCH
WRENCH
WRENCH
WRENCH
WRENCH
OILER
OIL
CHAIN
CHAIN (90
THREAD
THREAD
DRIP
DRIP
DRIP
DRIP
NAIL
NAIL
DRIVING
DRIVING
DRIVING
FIXED
FIXED
DYX3 (#24
DRIVER
DRIVER
DRIVER
DRIVER
HINGE
HINGE
(1000 mm)
PAN
PAN
PAN
PAN
KNI
KNIFE
HEAD
HINGE
SCREW
(1/16
(2 mm)
(2.5
mm)
(3 mm)
(4 mm)
(5 mm)
mm)
STAND
STAND
KNIFE
KNIFE
KNIFE
FE
PACK
)
(#24)
(CROSS TYPE)
(SMALL)
(MIDDLE
(LARGE)
WRENCH
CONNECTION
")
CRANK
SHAFT
)
PLATE
PLATE WOOD SCREW
LIFTING
ROD
-30-
f-.j-~~2
ACCESSORIES 2
8
-31-
10
1
13
1"1~£2
ACCESSORIES
No.
$~*~
PARTS NO.
30195
1
30196
2
15081
3
4 39298
5 39299
30197
6
7 60543
30750
8
70199C
9
70199-A
10
11
70199-B
70199-C
12
13
28080
14
70215
70199-E
15
12386
16
17
10776
18
70189
19
28076
10599
20
12418
21
70199-F
22
70199-G
23
0
N
I
(.)
~
co
co
I I
*
*
*
*
*
*
*
* *
* *
*
*
*
*
*
* *
* *
* *
*
* *
* *
*
*
*
2
0
N
I
(.)
~
co
co
N
-
-
-
-
-
-
-
*
*
*
*
*
*
*
*
*
0::
0
N
(.)
~
co
co
N
-
-
-
-
-
-
-
*
*
I
I I
0::
0
0
C')
C')
I
(.)
(.)
~ ~
co
co
co
co
*
* *
*
*
* *
* *
*
*
* *
* * *
*
*
*
*
* *
*
* * *
*
*
* *
* * *
*
*
*
*
*
*
*
*
*
*
* * *
I
I
*
*
*
*
*
*
*
*
*
*
*
*
*
*
0::
0
0
C')
C')
(.)
(.)
~
~
co
co
co
co
N
N
I
- -
-
-
-
- -
- -
-
* *
*
* *
*
*
*
* *
* *
* *
*
* *
*
* *
* *
*
*
~:I:
QTY I I
I
1
1
-
2
-
-
1
1 U
1
-
2
1
1
*
1
1
*
1 -"'JL.f-:h;\-
*
3
*
3
1
2
1
*
1
2
*
2
4
1
*
1
*
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.3:::
TABLE OF GAUGE PARTS
JW-28BLC-20 I JW-28BLC-30
D
w
w
I
I
~trn
GAUGE
inch
1/4
5/16
3/ 8
1/2
9/
16
5/ 8
3/4
1
1-3
/4
-
2-1/4
itt'<~t**f-;j-)
SIZE
12.7
14
15.9
19.1
25
44
50
57.2
NEEDLE
WITH
mm
6.4
7.9
9.5
.3 70236-A
.4
.5
70225-04
~
~
lfltffljt
BAR
CLAMP
70230
70232
70233
70235 70255
70237 70257
70238
70240 70260
70245
70460
VIBRATING
PRESSER
FOOT
70250
70252
70253
70256-A
70258
70265
70226-04
70465
;>H1JI;t
LIFTING
PRESSER
FOOT
70270
70272
70273
70275
70276
70277
70278
70280
70285 70934
70286
70470
~
~tt&
THROAT
PLATE
70925-04
70937
70935
70939
70933
70938
70930
70932 70942
70931 70941
70936 70946
--
~
)!L)llH
FEED
DOG
70925-05 70925-07
70947
70945
70949
70943
70948
70940
70944
~
--=--
f:lJ
tlX
(
lC
BED
SLIDE
70967
70965
70963
70963
70968
70960
70962
70964 70954
70961
70966
)
(LEFT)
~
~t)X(:t:J)
BED
SLIDE
70925-06 70219-02
(RiGHT)
70956
70955
70953
70953
70957
70950
70952
70951
70951
~
7{/n·-n·-~
FINGER
GUARD
70219-02
70219-03
70219-04 '
70219-04
70219-04
70219-05
70219-07
-
-
-
·
I
I
SEIKO SEWING MACHINE CO., LTD.
1-11-3
IMADO, TAITO-KU , TOKYO 111-8534, JAPAN
TEL: +81-3-3872-6173 (Overseas Dept.)
FAX:+81-3-3873
~
6596
E-mail: export@seiko-sewing.cojp
http:
I /www.seiko-sewing.cojp/
Parts
No.
PB09400(1204)
Rev.
1
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