Seiko CH-8B, CH-BTFL User Manual

1 i s t o f P a r t s

!'or

SElKO

M o d e l C E - e

SEWING

MACHINE

~

I

CO.,

LTD.

TOKIO•

JAPAN

28010

28012

28013
2801
28015
280

16

280

17

2

8018

28

019
28020
280

21

28022

28022
280

23
28024
28025
28026
28027
28029
28030
28031
28032
28034
28035
28036
28037

28038
28039

280.!.0
28041
28042
28043
28044
28045
28047

28048
28049
28050
28051
28052
28054

28055

.!.rm shaft
Cam

Needle

c=ank

position set

4

Arm 'shaft
Arm
Arm
Machine

!~chine

Mechine
A

rm

A

rm

Thread

-A

Thread

Thread

-A

Thread

Thread
Thread

Machine

Needle
Needle
Needle ·bar

Needle .
Needle
Needle
Needle
Needle
Needle
Needle
Needle

Heedle
Needle
Foot
Needle
Needle
Presser
Presser
Presser
Pre

sser
Tension
Tension
Presser

Presser

bushing
shaft bushing
shaft

bushing

pulley
pulley

adjusting

pulley

key

shaft

bushing
shaft

bushing set

take

up

lever

take

up

lever

take

up

lever

take

up

lever

take

up

leve

take

up

lever

pulley

set
bar
bar

connecting
connecti

crank

position

bar

rock

bar

rock

bar

rock

bar

rock

bar

rock

bar

connecting

bar

connecting

bar

rock

bar

rock

lifter

bar
bar

lifting
rock
rock

bar
bar

lifting

bar

position

bar

bushing
releasing
releasing
bar

spring

bar

screw

(front)
(rear)
(front) washer

set screw

.r

screw

ng

frame
frame
frame
frame
frame

frame
frame

frame
frame

bar
lever

nut

sc=ew

thread
hinge

hinge

roller
roller

stud
stud
set

stud
stud
stud
guide

link

link
stud

stud

lever

stud
stud

bracket

guide

(lower)

screw

(large)

screw

(front)
(rear)

eyelet bushing

stud

stud

set

hinge

set

screw

screw

(smal

(upper)
(large

)

(small)

stud

set

(small)
(large) set

set

screw
(lower)
washer

bracket

scre

set

screw

w

l)

screw

screw
screw

280

57

280

58
28060
28061
28062
28063
280

64
28065
28066
28067
28068
28070
28073
28074

28075
28076
28077
28078
28079
28080

28083
28084
28085
28086
28087

28088

28089
28090'
28091C

28091

- 1
28091-2
2809

1-3

2809

1-4
28091-5
28091

- 6

28091- 7

2809

1-8

28092
28093

Presser

Presser
Lever

lever
Feed
Feed

Feed

Feed

Feed

Feed

Feed

Feed

Feed

Feed
Feed

S

Be
Belt
Belt
Belt
Shuttle
Shuttle
Shuttle
Hook
Hook
Hook

Shuttle
Bed
Shuttle
Shuttle
Shut
Shuttle
Shutt
S

huttle

Thread
Set

Set
Bobbin

Oil

foot
foot

hinge

screw

supporting

forked

connection

and

feed

regul

ating
regulating
forked

connection
regulating
regulating
forked connection
rock

s~ft

rock

shaft

rock

shaft

et

screw

for

1 t

guard

body

guard

fitting

guard

plate

guard

body­race
race
race

cover
cover

spring

cover

spring
race

slide

hook
frame

tle

cylinder
cylinder

le

cylinder
cylinder

regulating

screw

for

screw

for

pad

- 2 -

set

screw and

plate

lifting

bar
bar

collar
collar

stud
crank

28075

bar

set
body
back
back

spring

set-pin

body

set

complete

set-pin
set
set

spring

28091- 6

28091- 1

eccentric

stu

d
slide

set
slide blo

screw

connection

screw

screw

spring
spring

belt

block

screw

set

guard

ck

hinge

screw

plate

screw nut

set

sere••

- l -

4094

28095
28096
28097
28098
26099
28100
28101
28102

28103
28104

2810
28106
28107
28108
28109
28110
28111
28112

28113
28114
28116

28119
28120
28121
28122
28123

28

124
28125
28126
28127

28131
28132

28135
28136
28

137
28138
28140
28141

Set

SC:::"o;!n'

:.·~

28095
'iashe::: fo::: 28098
Oscillating rock

Oscillating
Oscillatin5
Oscillating

•.;asher
Crank

Cr
Set
S

5

Oscillating

ank

sc:::e~

et

sc:::e~

for
connecting
coni!ecting

for
for

Oscillating

Slide

block

Set

ring

for
Rotating
Rotating
Rotating
Rotating
Rotating

Shuttle
Fe

ed
Feed
Set
Throat
Set
Feed
Feed
Feed
Feed

Feed
Feed
Lifting

hook
hook
hook
hook
aook

driver

lifting rock

dog

sere·" for 28

plate

screw

for
bar
bar

connectio

bar

fittings

bar

connection

bar

coonect~on

driving

rock

rock
rock:
rock:

28101

28102

26105

shaft

sP~t

pin

sc:::ew

. 28102

sha

shaft
shaft
shaft
shaft

119

28121

eccentric
shaft

shaft

shaft
shaft
shaft

rod
rod

crank

crank

f t

shaft

n

hin~

::Unge
pin

cam

slide

bushill€
bushing
collar
bus::llng

binge

hinge

pin
pin

block

(front)

(rea

set screw

pin

(up

?~

(lower)

bushing

r )

per

)

(front & rear)

28143
28145

28146
28147
28148
28151
28152
28153
28154
28155
28157
28158
28161
28

162
2816 3
28164
28167
28165
28169

28170
281

71
28172
28173
28174
28175
28176
28177
28178
28179
28180
28181

28182
28183
28184

Lifting
Vibrating
V

ibrating presser
Se t
Connection

Lifting

screw

eccentric

presser

for

for

bell

bar

foot

vibrating

28141

crank

presser

foot

26185
28186
28187
28188
28189

s~~

d

sc

:::ev

for
Vibrating
Connection

Set

Upper
Connecti
Connection
Coonection

Up~e

Ringe

·rh=ead
T.hzead
?eed
reed

presser

pin

sc:::e•

for

feed

rock

on (A)

(B)

(B)

r

feed

crank

sc:::ew

guide
guide

:::egulating

:::egula

ting

28145

for

(center)of face
(lover)

Feed regulating
;eed

regulating

Upper fe ed

!.r::1

cover
Face
Thread

connection

(front)

plate

controller spring
TU:e - up spring
Take- up
Sicie
Side

A=

Foot
Foot
Pin
Spring

spring (extra

plate

(arm)

plate

(bed)

cap

l i

fter lif

lifter

for 28176

for

28176

lifting

Washer for 28176
Bobbin

vin

der

bracket

Bobbin

winder
Bobbin 'o'ind.
Bobbin ·o'inder
Bobbin

winder
Bobbin w

Bobbin

winder lever
Bobbin

winder lever

Bobbin.

winder

er

inder re

sha
hinge
shaft
shaft

28141

bar

for

28145

shaft

for

28148

set

screw for

for

28148

connection

281

54

plate
collar
lever pin
knob

ting

lever
lever (small)

ft

stop
scre
driving

tur

ning

lever

connecting link

28148

rod

plate

of

face

plate

scre

w

stop

)

w

roller

spring
spring
spring

stop

- 3 -

- 4 -

28190

33158

28192
28193

291gB
28199
28200

28201
29202
28203
29204
28205

·28206
28208

1402
14-24
1439
4094

.

?80~3

4134

33126

2067
100914

8040

6339

8040

10

514
10517
10559
10

566

10597

10629

Bobbin ·.;inder
Bobbin wind

Bobbin

er

winder
Bobbin winder
Te!lSion
Tension
Te:>sion

·

ren
Tension
Ten

Tension

~e

Tension

St

Presser
Face
ll
Se
Set
S
Stop
Set
Set
Set

Stop
Set
Set screw
Set

Set
Set
Set

stud
>asher
disc

si on o

il

spring

sion regulating

s

t~d

nsio

n

stud

thumb

op

ring

for

bar

plate

eed.le

sc

rew

sere'!

screw

rin

screw

scre
screv

scre

screw

for
for
for
for

g

for
for

w

for

w f

for

t

et

for

screv

for

scr

ew

for
screw for
screw for

Lifting rock

nut

scre
scre"'

crew

screw
scr

ew

for

lof

for
for 281

for
28190

Pin
Set
Set
Set
S

reg'llati

lever sha
driving
rubber

(lower)

pad

nut

vaaher

nut
foot

sc=e

thread

28095

28063

28192

33158

28050
28038

28186

or

28140
28052
28133
1424

28158
28187
28170

shaf

fo
28141

28190

ring

thumb

stopper

lifter lift

v

guide

t bu

r 28132

31

ng

lever

ft

collar

nut

(upper)

shing

spring

ing

lever

10652
10

599

107

03

10723
10728

10754
10774
10775

10776
10794
147468

100624
11067
11073

11426
12418

13055
13076
131

34
13330-4
15053
17046
17095

18065

20018
20019

20020
20023
20024

20025
20072

20073
20171

Pin-screv nut for
Washer

'"'asher
Oil wick

for
for

pr€sse

scre

Binge
Screw f

Pi~

for

or

20072
Hinge scre'A
'oing

nut

for

Oil

cup

Upper

feed
Set screv
Nut

for 28157

Set

screv

Stop ring f

Set scre
Set

Set

Presser
Nut

Ringe

v f or 28175
screv for 2817
screv for 28174

bar

for

28143

screw

Set screv

Hinge

screv

Set

screv

Hing-3

screv

Stop

ring

Stop

ring

S

et

screv for
Set scre
Tension
Te

nsion

Tension

'iasher

Tension sprin

f or

lif

ting ec

lifting

r f

w o

il

28135

for

20072

driving rock

for

147468

for

28051

or

28035

lifter

for

for

for

for

stop

for

for

v f

or

stu

d
disc
release washer

tens

Tension bracke
Lifting

Bearing
Rubber

eccentric

for

20072

bung

13055 &

tension

centric

eccentric

or

28093

wick

for 28132

20072

sha

3

28167

28181

28132

28161

ring

for

28107
28126 & 28127

28049

28504

ion spring

g

t

connection

for

arm

co

nne

conne

ft

stop

28101

bracket

cti

o~

collar

ction binge

col

lar

screw

- 5 -

- 6 -

. . 2

3

L

5

6

7

·I

8

9

10

EL-oo/o

11

~

l

12

2807-4

·/

...

Q~':'::'

2811 3 . . .

~

";;:j) 28 -

28073

'

28lloJ

:;:;-:00456

~~t=>

•

_,28114

~E~

!

·

~28113

119

· L28112

28120~

~w

~~i~:

~

1

1095~-w

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2~~~~~;:o

;;;;;;;:;;;;;;;;:;https://manualmachine.com/1100456

28127

~

~

28ll 6 .....

28JJ3J

..,

~

28110

\\

-

Option

t = 1.0

t

=1.8

"t = 1.6

t = 1.9
t

=2

.2

. .

(100456

:H8112

·:::--

28115·10

281
28Jl5·1 6
2

28115-22

<1.

-

J(XJ<!5

15·! 3

8Jl5·19

6

12.41

0

2815

2807

~~~

28076

..-

--

====

----'-=--------

= = • .

28113

____.p

8

4

281

.

\_

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~

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0

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~~

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.

28

}

~

2810~_9

28113

109

2a1o

s \

281.1-1

---

£28107

,

·Nll

,j

28106

1

.7.

095

C

H-

88®

~.28070

28062

~

281

ll

\

\,-::=J

-~---

11095

~

2,113

28097

~

2809

-

~ --

~"ffi--f;l'~099A094

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2810

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88. ®

A.

t-

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q

u

ol

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v

~-13079

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L

28092

WtS7

IW:B

1915?

194(·•·

1871 (6lll/ii)

.

(~-5m/

t~)

(:J:;n/.J;J)

(~/Jill

(5m/

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F .

G

L

l

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I

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i

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28203

20024

20022

~~"'

20021~

20023 . .

MODEL CH- 8B,
***********************

THREAD

GUIDE,TENSION ,

8BV

& TH-

ETC

280/

8B

*

. ·

28205

; -I

(JJP

!PAR

TS

NUMBER

281

68-A
20019
20021
20023(143657)
20025
28204
28203
28202
2820

1
28199
281711
28209
28157
28170
18065

0Wi99

/

2s2o;

.

.

0 E S C R I P T I 0 N
FACE

TENSION
TENSION
WASHER

THREAD
T

ENSION

TENSION
TENSION
TENSION QIL
T

ENSION

T

HREAD TAKE
STOP
THREAD
CONTROLLER
SCREW

PLATE

DISC

THUMB

GUIDE

STUD
THUMB NUT

DISC

WASHER

RING

GUIDE(MIDDLE)

NUT

NUT

SPRI

PAD

UP

SPRING STOP

NG

SPRING

PARTS

NUMBER

20018(150326)
20020
20022(153672)
20024
28068
28205
28206
28199
1543
28198
28172
11067
8040
28068
28158 - A

D E S C R P T I 0 N
THREAD

TENSION
NUT
RELEASE SPRING(THICK)
SCREW
TENSION
T/THUMB
TENSION
TENSION

TENSION
REGULATING
NUT
PRESSER

SCREW
TH

CONTROLLER

READ

GUIDE(LOWER)

RELEASE:

STUD
NUT STOPPER
WASH
DISC
STUD

FOOT

WASHER

WASHER

ER

(LOWER)

SPRING

SCREW

STUD

I

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60466

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28281

0

CD

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30151

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30025

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31094

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31094

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28268

28270 \

0

0

0

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0

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101520

28262

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28264

31094

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28267

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17000(0615)

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28277

70567

28276

----

28278

~30750

30,727

CH-88-BTFL

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~

30750

PBA 1 7000(0615)