Page 1
J\-'Y
1
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PARTS LIST
LDA-L26-1
LDA·-T26-1
•
SEIKO
SEWING
MACHINE
CO.,
LTD.
>
/
Page 2
Pre
sse
r Bar and Thread
Feed Mechani sm and Needl
Cutter
. . . . . . . . .
e Guard
§
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CONTENTS
.. . ..
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1, 2
Page
3, 4
J~-,\-#.!U
Looper Mechanism
Uprig
ht Sha
..t~
,
Arm
Shaft
Needle
~
ft
and Lubrication
-:J-1)-
and Machine Pull
Bar
and
Thread Take-up
"F*ttl
Bed Rotary
)~-J\-*dil·
Looper
J~-,\-~Hil-
Looper
Needle Thread
Shaft
Thre
ad Guide
,
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Thr
ead Guide and Be
Guide and Tension
...... .. ................
Sys
tem
. . . . . . . . . .
ey
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15,
..
. . . . . . .
......
........
..
. . . .
..
. . . . . . . . . . . . . . .
...
...... ·.·
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17. 18·
lt
Guar
d
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
5,
7,
.. . 9,
11, 12
13, 14
9,
6
8
10
16
20
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Arm Top
Oil Rese
Accessories
~·;;t-::t.JJ
Fa
ce
Plat
e and Bed Cover
Cover
rvoir and
it~~
Part
s Available
7
--:/
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Gau
ge
Part
7-
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Gau
ge
Parts
s 1
2
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and
Oil Rese
at Extr
. . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . .
Thr
ead Guide Cover
. . . . . . . . . . . . . . . . .
rvoir
Screen
a Char
ge
..
. . . . . . . . . . . . . . . . . . . . . .
... . ..
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...
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29,
. . . . . . . . . . . . . . . . .
. . . .
. • • . . • . . . . . . .
..
. . . . . . . . . . . . . . . . . . . . . .
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. . . .• . .
. . . . .. . . . . .
...
. . . . . . . . . . .
21.
23,
25,
27,28
31,
22
·24
26
30
32
33
Page 3
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9
16
6
4
13 12
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1
Page 4
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NO
.
PART
NO
1
100802
143510
2
3
100807
4 146676
5 100161
146609 .
6
100110
7
8 146620
9 416024
10 100624
11
168003
12 143511
13
150225
14 139181
15 143524
141008
16
17 151614
18 132833
19 175032
146159
20
21 146694
101057
22
23 146751
24
101133
25 416116
26 8040
8040
27
28 139462
29 372210
30
146752
31
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Thread
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Screw 9/ 64X40 L=8
Presser Bar
Finger Guard
Presser
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DESCR
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Bar Lifting L
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2
Page 5
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Feed Mechanism and Needle Guard
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NO
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PART
1
132381
2 132382
3
100193
100223
4
6 100443
101520
7
8 134737
9 143448
10 100914
11
100172
150328
12
13
151061
100217
14
107071
15
16
416071
143450
17
18
139432
19 143451
20 139046
21
122163C
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Screw
1 / 8X44 L
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Nut
Feed
Bar Hinge Pin (eccentric)
Feed
Bar
Screw 11/ 64X40 L=8.7
Screw 11/64X
Feed
Regulating Screw 7/ 32X32
Set
Screw
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Washer
Feed
Eccentric (aqjustable) Ass embly
Slide Block
F
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Feed
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L=6.4
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15/ 64X28
15/ 64X28 L=8.5
Eccentr
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40
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ic Forked Connection
ssemb
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4
Page 7
Jl.--1\-f~~
Looper Mechanism
15
41
37
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38
43
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Page 8
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NO
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PART
1
143646
2
143614
3
1011
33
4 143551
5
143485
6
143552
100443
7
8 143486
11
143484
12 101057
101057
14
15 139097
16
101047
19
103859C
20 8103
21
143454
21
143454-1 -
22
100226
23
143459
24 143460
25
143458
143455
26
27
100456
28
416074
29
101324
30
416075
31
143483
32 139065
33
139064
34 139074
35 143463
36 100446
100446
37
38
139534
39
151
369
40
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41
416043
10828
42
43 416091
43 416092
46
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47
143644
48 103860.P
49
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51 139535
52 143461
52
143621
53 143456
54 139257
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Lo
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Bushing (back)
Looper Holder Shaft
Screw 11/64X40
Screw
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Slide Block
Slide
Set
Set
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Looper Eccentric and
Looper E
Set
Bed Rotary Shaft Bushing (left)
Looper E
Looper Eccentric Connection Assembly
Looper Eccentric Collar and
Looper Eccentric and
Looper Eccentr
Forked Connection B
Forked Connection Crank
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Hold
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Screw 15/ 6
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11
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9
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8
Support
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Feed
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Connection Looper Driving Arm Assembly
Support
Feed
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and Feed Lifting . .Eccentric
racket
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cen
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Page 9
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PART NO
1
416061
10828
2
111
147
3
4 372829
146505
5
416067
6
7
10828
372801
9
10 143126
11
143073
12 6339
13 .
146600
14 146657
15 146658
1
001
16
17
18 8020-02
19 375065
20 375066
21
22 545239
23 545239
24
25 540625
26
27
28
29
30 143622
31 143124
32
33 416102
34
35 143648
36
37
38
39 151
40 415930
41
42
43 143654
44
46
47
48 143015
49 143431
50
51 143650
52
53 143503
54
89
100157
540555
540556
375068
504010
416100
41
6126
143125
41
6103
143457
50025
143370
369
16380
376425
41
6125
143066
143065
143649
143501
143647
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Arm Sh
Arm Sh
Arm
Shaft
Arm Sha
Set
Screw 1 I 4X40 L
Oil
Pump Body
Oil Pipe Clampi
Oi
l Pump Impeller
Screw 1 / 8X44 L=4
Oi
l Pump (centrifuga
O
il
Pump
O
il Pump Scree
Sc
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Scr
ew 11/ 64X40 L=13
Position Pin
O
il
Removing Pu
O
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Removin
Oil
Removing Pump Bracket
S
et
Scr
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OH
Removing Pump Pist on
ston Spring
ston Spring Br
Sc
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il Pipe Assemb
O
il
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O
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O
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Oil Pi
pe
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il Tube
Oi
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O
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Connection
Scre
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Oi
l Lead
Screw
O
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Oil
Removing Lint
Oi
l Removing Tube · Wire
O
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Removing
O
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O
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Pipe Clamping S l
Oil
Pipe Clamp ing Sl
Bevel Gear
·ow Pi
pe
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il
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O
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DESCRIPTION
aft
(upright) Bushing (upper)
aft
(upright)
(upright) Bushing (lower)
ft
(upright) Collar Assembly
=5
ng Sleeve
Scree
n
n Frame
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44 L=8.7
mp
g Pump (body)
ew 1 /8X44 L=3.2
ew 1 / 8X44 L=3.2
acket
9/64X40 L=
ly
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rn Tu
Clamping
Clamping Slee
Asse
11
ly
be
mbly
Assembly
Connec
tion
/ 64X40 L=9.5
ube
Tube (head
Assemb
ft
ly
(uprigh
l)
Cover
.5
Assembly
7
Sleeve
ve Nut
Scree
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t)
Collar
Adapter
n
Assembly
end)
Nut
Scree
n
8
Page 11
...t'm,
Arm
"7°-IJ
Shaft
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chine Pulley
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35 r
34
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9
Page 12
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Arm
j'-
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Wt%Ji%
NO
.
PART NO.
1
416105
1 416107
2
416097
416099
2
3
140552
4 108270
5
140542
6 416123
7 143619
8
8060
9 121321A
10
114475
11
416122
12
140359
13 143236
14
372827
15
120810A
16
372828
17 16292
18 103163
19
6046
20 152503
21
140296
22
416119
23
100624
24 416118
25
10828
26
140333
27 372221
28
140296
29
540707
30 416132
31
372796
32
202253
33 141146
34
141403
35 139018
36
264715
38 151283
39
139533
40 416131
41
160001
42
37229
43
104425
43
143635
44
143495
45 146864
46
147468
47 372220
48 375143
139419-A
49
49 139484-B
L26
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DESCRIPTION
Arm Rotary Shaft A
Arm Rotary Shaft Assembly
Arm Rotary Shaft and Crank
Arm Rotary Shaft and Crank
Screw
1/
4X40
Set
Screw 1/ 4
Position Screw 9/32X28
Needle Bar Connecting Stud Assembly
Oil Wic
k
Screw 9/64X40
Needle Bar Connecting
Needle Bar Connecting
Needle Bar Connecting
Arm Rotary Shaft Screw Plug (front)
Washer
Needle Bar Connecting
Needle Bar Connecting
Oil
Wick
Hinge
Stud
Arm Rotary
Set
Screw 15/ 64
Arm Rotary
Set
Screw 9/32X28
Arm Rotary
Se
t Screw 11/ 64X40
Bevel Ge
Set
Scre
Arm Rotary
Set Screw 9/32X28
Oil
Arm Rotary S h
Ball Bearing
Sproc
Set
Sc
Washe r.
Bed Rotary Shaft Belt
Set Screw 15/64X28
Scre
Arm Rotary
Oil
Set
Needle Bar Crank
Needle Bar Crank
Needle Bar Connecting
Bevel
Arm Rotary
Arm Rotary
Arm Rotary
Machine Pulley
Machine Pulley
ar
Screw 1/4X40
w 1/4X40 L=
Retaining
ket
Whe
Screw 1/4X28
rew 5/
8X28UN
w Cap
Separator
Screw
Gear
sse
mbly
L=1
2.6
X40
L=8
L=8
Link
Link
Link Assembly
Link
Link
Plug
Shaft
Flanged Bus
X28 L=17
Shaft Bus
Shaft
Assembly
Shaft
Ring
el Spring Flange
Shaft
M4X0
Shaft
Shaft
Shaft
hing
Thrust Collar A
L=5
L=5
7.7
Flange d Bushing (back)
aft
Sproc
ket
L=6
.7
L=16
Flanged Bushing A
.7 L=5
Stud
Thrust Collar
Sproc
ket
Screw Cap Disc
Hinge
Stud
Hinge Stud
hin
g (front) Assembly
(center)
sse
.5
Wheel Assem
.6
Wheel
Assembly
mbly
bly
ssem
bly
10
Page 13
Needle
ffitt''
Bar
~f.¥
an -
d
Thr·ee;a~d~T~a~ke=._-_u_P
__
_
23
20
19
11
Page 14
~tt,,
Needle
~ff
Bar
and
Thread
Take-
up
$~1li~
NO
.
PART
1
140440
2 146576
101133
3
416128
4
5 416033
6 139179
8060
7
8 139196
101449
9
10 154095
11
168164
12 7016
13 372799
14 101133
15 146573
16
143497
17
18
19 146805
20
21
22 146703
23 139198
24 13
25
26 146908
2.7
28
29
30
30
31
32
-
-
146580
146804
14
100997
159456
101485
139111
N2616
N4621
375116
8040
96
NO
L26
*
*
* *
*
*
* *
*
*
* *
*
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*
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DE
SCR
IPTI
Screw 11/32X
Needle Bar Bushing (upper)
Set
Screw 15/ 64X28
Thread (needle) T
Thread (needle) Take-up with 8060
Thread (needle) Take
Screw
Thread (needle) Take-up Extension
Sc
rew No.2Thread (needle) Take-up Plate
Spr
ing
Sc
rew 3/ 32
Needle Bar Bushing (lower)
Set Screw 15/ 64X28
Needle Bar
Needle Clamp Thread
N
eed
le Clamp A
Set Sc
rew
Needle Bar B
Oil Wick Clip
Needle Bar Bushing
Oil
Wick
Thread Controller
Slack
Slack Thread Controller Clamp
Sc
rew 9/ 64 X40 L=9.5
Sli
de
Block Guide
W
ashe
r
Sc
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Slide Block
ee
dle
N
Needle
Tread Take- up Cover
Screw
28
L=7
L=3
ake-
up Assembly
-up
9/ 64X40 L
Clamp and
9/ 64X40
=8
64UNF
X56
L=4
L=3
Guid
sse
mbl
y
ushing Oil Wick Assembly
Oil
Wic
Ret
ainer
L=12
.7
L=8
.8
.8
e
k
ON
12
Page 15
l''ffi
Bed Rotary
Shaft
~
----
5
/
9
13
~
J
14
13
Page 16
l'm
Bed Rotary
Shaft
$~1li~
NO.
PART
1 143659
2 416070
8103
3
416028
4
101
5
6 14
7
8 143444
9
10
11
12
13 1368
14 143499
15
16
17
266
36
45
6046
100430
143675
202253
140409
100202
143674
416070-9
NO.
L26 T26
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*
*
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*
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DESCRIPTION
Bed Rotary Sh
Bed Rotary
Set
Screw 11 / 64X40 L=3
Thread (looper) T
Set
Screw 1/4X40
Bed Rotary
Set
Screw 1
Bed Rotary
Set
Screw 1
Bed Rotary
Sprocket
Set
Screw 1/4X28 L=9.
Screw 1/ 4X24 L
Oil
and Lint
Bed Rotary Shaft Sprock
Bed Rotary S h
aft
Shaft Coll
Shaft
5/6
Shaft
Shaft
Wheel Spring Flange
Guard
/6
4X40 L=5.6
ar Assembly
ake-u
L=2.
Bushing
4X28
Bushing Flanged (right) Assembly
5/64X28
Spr
ocket
=11
aft
Collar
.5
p Assembly
86
(in
termediate)
L=1
7
L=17.33
Wheel
4
et
Wheel
Assembly
14
Page 17
)~-J\-#d!~
Looper Thread Guide
36
28
)
20~
8
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r.::::
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11-(
27
19
I
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35
9
16
® -
14
29
17~~15
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18
23
25
c:(,37
15
Page 18
)L,-;\-!fdtt
Looper
Thread
Guide
$~iii~
NO
.
PART NO.
1 139120
2
1011
67
3 100456
4 143487
5
14
3548
1002
6
7 4160
8
9
10 139156
11
12
13 100219
14
15 139155
16
17
18
19
20 100219
21
22 139147
23
24
25
26 139146
27
28 8060
29
30
31 101742
32 141002
33
34 143514
35
36
37
06
85
1002
40
139157
139154
100237
107071
6333
139148
107071
139145
15128
139152
100665
143511
1435
18
416083
4160
82
110106
143567
100430
101250
2-A
L26
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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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1
2
1
2
1
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1
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1
2
1
1
1
2
1
2
2
2
4
2
1
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DESCRIPTI
Looper Thread
Screw 15/
Set
Screw 15/64X28
Looper Thread Guide
Looper Thread
Screw 1 /
Thread (looper) TakeScrew 3/32X56
Th
read Retainer
Thread Separator
Thread
Screw
Screw 9/ 64X40 L
Washer
Thread Guide (right)
Screw 9/
Thread (looper) Tak
Washe r
Cover
Screw
Sc
rew 3/32X56 L=1.
Lock Spring
Thread Guard
Sc
rew 3/ 32X56 L=2.2
Thread (loope
Hinge Pin
Thread (looper) TakeScrew 9/ 64X40 L=8
Tens ion (looper thread) Assembly
Tension (looper thread) Scr
Thumb Nut
Tension (looper thread) Screw Stud
Tens ion (loop
Tens
ion
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Guide
Bracket
64X
28 L=23.4
L=3
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Bracket
8X44 L=6
up
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16
Page 19
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17
Page 20
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NO.
PART
1
416069
101448
2
3 143544
4 139162
6
8040
7 139325
8
100237
9 100202-A
10
139324
11
139158
12
1001
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13
150342
14
139281
15
416029
16
139167
18
139173
19
139174
20 100202
21
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22 139175
NO.
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L26
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18
Page 21
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PART
1 4 16104
2 153672
3
150326
4 143658
5 143657
6
1741
13
6 143656
159538
7
8
132572
9 102102
10
154988
11
416010
12 10652
13
100316
16
14 13
15
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16
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139331
17
18
140443
19
139177
20 100219
21
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8031
22
24 143571
25
100176
26 100724
27 107071
28 143570
140180
29
30
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30
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L26 T26
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Thumb Nut
Tens ion (needle
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Ten
Tension (needle thread )
Tension
Tens
Tension (needle thread) Releasing Disc
Tens ion
Releasing Pin
Screw
N
Screw
Thr
Tens
Screw
Thread (needle) Guide Brac
Screw
Thread (
Sc
Thread
Screw
Thread
Screw
Screw
Washer
Thread
Screw
Ten
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Spring
sion Spring Bushing (large)
ion
Spring Bushing (sma
(needle thread) Disc
and N
ut
11/64X40 L=11.4
ead Guide
ion
(needle thread)
11
3/ 16X32
nee
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3/32X56 L
(need
9/ 64X40
11
Guide
9/ 64X40 L=5.2
s ion (needle thread) Assemb
thr
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ing
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ll)
ut
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ket
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et
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et
L=9.5
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ly
ly
20
Page 23
ffii
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PART
1
122160-A
143543
2
6604
3
20171
4
143433C
5
6 143434
7 140999
8 143435
9 140295
10 139510
11
139509
13
143464
13
143466
14
151282
15
143470
17 1434
17
143473
17
143475
18
143477
19
151282
20
143479
21
143480
22
1390
23
143643
100202
24
25
143478
71
30
NO.
L26
T26
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DESCRIPTION
Face Plate
Gasket
Screw 9/ 64X40 L
Face Plate Plug
Bed Cover Assembly
Gasket
Screw 15/
Gasket
Screw 9/ 64X40
Oil
Plug
Gasket
Looper Gate (left)
Looper Gate (left)
Screw 3/ 32X56
Looper Gate (left) Lock Spring
Looper Gate (right) 1/
Looper Gate (right)
Looper Gate (right)
Gate
Screw 3/ 32X56 L=1.93
Hin
ge
Screw Stud
Position Pin
Cover
"o~
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g
Screw 9/ 64X40
Hinge Pin
=12
16X16UN
L=9.5
1/8, 5/32
3/16,
1 I 4
L=1.93
8, 5/32
3/16
, 114
3/16,
114
(right) Lock Spring
9/ 64X40
L=5.6
L=5.6
22
Page 25
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23
Page 26
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Arm Top
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NO
.
PART
1
1
46829-A
2 146508
3 151369
1454
4
5
143062
6
14
306
7 14659 1
10020
8
139036
9
10 139035
11
139037
100690
12
3522
13 14
14 143521
15 139171
16 803 1
17
139520
18 372224
19 112162
20 139
21
22
23 139017
24
519
6604
15
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30046
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NO.
58
1
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L26 T
26
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(left) A
40
7 L=4
L=9
Assemb
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de
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3.5
Screw 11 / 64X40
Oi
l F
low
Window Cap
Oi
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low
Window
Gasket
Oi
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ow
Body
Screw 9/64X40 L=5.6
Belt Guard
Belt Guard
Gasket
Screw
3/16X32
Thread (looper) Gui
Cover
Catc
Screw
3/32X56
H
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Hi
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Hinge Pin
Hinge Pl
Was her
Scr
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Sc
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Screw
ate
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M4XO.
DESCRIPTION
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ly
Cover
Assembly
Cove
r
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2
24
Page 27
;rn
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25
Page 28
5839~?,
5ffiJLt
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Oil Reservorr and Oil Reservoir Screen
Nfl~jf~
NO.
PART
1 416093
143625-A
2
143508
3
143542
4
143509
5
6 100966
141139
7
8 8044
101485
9
10 164134
11 164133
12 164132
13 143601
141139-A
14
NO.
L26 T26
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Oil
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Oil Reservoir
Oil Reservoir
Oil Reservoir
Screw 3/16X28
Oil Reservoi_r Dra
Screw 1/8X4
Screw
Oil
Reserv
Oil
Reservoir
Gasket
Sight
"0 " Ring
ir
Gasket
Screen
Screen
4 L=6
11
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oir Sight Gauge
Sight Gauge
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Background Disc
.
DESCRIPTION
Frame
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26
,
Page 29
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10
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Page 30
1-t/i~
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NO
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PART NO.
1
416076
11193
2
3 8118
8120
4
5 8121
6 19458
8132-B
7
8 139190
9
13079
10
156864
11
156865
12 104879
13
N2616
13
N4621
14
11196
15 372833
15 372834
16 372832
17 372831
18 54421108
10734-24
19
20
27187
21
372835
22 5442 1208
23
31207
372209
24
54421208
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26
122794
27 122796
28 151069
29 151581A
8126-Q3
30
31 141464
32
122795
33
122797
34
1368
L26 T26
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DESCRIPTION
Thread Unwinder Assembly
Oil
Screw
Driver (large)
Screw
Driver (middle)
Sc
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Wrench
Accessories
Machine Cushion
Foot
Foot
foot
Needle
Tweezers
B
elt Guard
Belt Guard
Belt Guard (right)
Belt Guard (l
Screw
Wood
Washer
Belt Guard P l
Screw
Washer
Belt Guard
Screw
Machine Mounting
Bracket
Bolt
Nut
Washer
Bolt
Machi
Br
acket(s
Screw
Pack
Lever
Chain
(1
000 mm)
Lever
Chain Hook
Lever Chain Hook
Connecting
M3
Screw
M4
M4
(long) P
ne Mounting
1/ 4X24
(upper)
(upper
eft)
L=8
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L=8
Plate
L=8
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Link
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Brack
ad
Bracket
Pad
L=1
1
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g)
(short)
28
Page 31
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29
Page 32
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1 139434
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T26
L26
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M5X0.8 L=14
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Page 33
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NO.
PART
1
2 101498
3
4
5
6
7 139366
8
9
10
11
12
13
14 141158
15
16
17 140393
-
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100691
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101
255
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143481
132850
143482
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L26 T26
NO
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Needle Clamp
Screw
11/
64X40 L=1.97
Throat Plate
Screw 11/6
Feed Dog
Screw 13/ 64X36
L
ap
Seam Feller Slide
ap
Seam Feller Assembly
Pr
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Presser Foot Plate
Looper (back)
Looper (front)
Looper Holder (back)
Sc
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Position Pin
Looper Hold
Clamping
4X40
L=9.1
L=9
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11 /64X40
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Screw 11/ 64X40 L=6.4
DESCRIPTION
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Assembly
L=7
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32
Page 35
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Model
L26
T26
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GAUGE
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32
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1391
16-4
139116-5 139538-5
139116-6
139116-8
139116-6
139116-8
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139538-4
12
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139541-8
139385-6
139385-8
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139537
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139540-8
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Assembly
121
586
121
586
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121
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L5
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132820 132823
132820 132823
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13
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132822
132823
132824
Page 36
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PB39700(Ql08)
Rev.
1