Juki MH-38 User Manual

.. ,

'.r--...

•I

model

MH-38

( & SUBCLASSES)

High

~.

<((

' I

I

'

Speed

REVISION

Flat

PARTS

Bed

No.

s

Double Needle Chainstitch

Industrial Sewing Machine

t

BOOK))>

TIKYI

.1111

IIDUSTRIIL

CO

••

LTD.

HOW

TO

MAKE

1.

This

2.

3.

4.

5.

6.

7. When placing

is a consolidated

This

list

is

assist

you

For

example,

on

"OIL

The

figures on the

On

bits

and pieces parts such

of

these parts, refer
Parts marked
The

parts

above these parts.

Ref.

No.

*1

2

USE

divided,

visually.

LUBRICATION

with

under

your

PARTS

as a principle,

if

you

want

illustrations

to

• on

"Amt.

order, please spec1fy

Part

B-

1111

- 111 - 0AO

B-1111

- 111 -

OF THIS PARTS BOOK

BOOKof

some parts

MECHANISM

as

the

BOOK.

the

"Ref. No."

Req."

No.

000

Model

MH

into

various sections accordmg

for

Indicate the correspond 1

column

COMPONENTS"

screws, etc. the

column,

Circled

your

name

38

the

01

L

illustration

mean these parts

by

0 are parts included

order

by

Description

of

part

and

subclasses.

LUBRICATION

etc.

ng

numbers on the

the assembly un1t

shows

to

only

are

FOR EXAMPLE

Amt.

Req.

1 Means

'J.,

Means
assembly
(This

the

functions

MECHANISM

BOOK.

a representati

one

complete

in

the

one assembly un1t

number

marked w1th • under the

one

assembly

this

is

included in

unit.

part

can be sold

of

parts and al

COMPONENTS, just refer

Ve

one and

assembly

unit

as

a single

the

so

unit.

which

above B-

so

contams I

for

the requ

is marked w1th • ju st

"Ref.

1111-111-0AO

unit)

llustratio

to

1red

No."

the

sect1on

quant1ty

column.

ns

to

CONTENTS

•

FRAME,

1.

2.

FRAME,

3.

FRAME,

4.

MAIN

5.

LOOPER

6.

FEED

7.

LOOPER

8.

NEEDLE

9.

PRESSER

10 .

OIL

11.

OIL

12.

EXCLUSIVE

13.

MH-38
NUMERICAL

14.

COVERS & TENSION
COVERS & TENSION
COVERS & TENSION

SHAFT & UPRIGHT

ROCKER

ROCKER

DRIVE
BAR & COUNTERWEIGHT

BAR & KNEE
LUBRICATION
RESERVOIR & KNEE

GAUGE

SHAFT,

LEVER

PARTS

SETS

INDEX

ROCK

MECHANISM

FOR

•..•.•....•...•.•.•..•.•......•

OF

PARTS

COMPONENTS

PARTS

COMPONENTS (2)

PARTS

SHAFT

SHAFT

FEED

SHAFT

LIFTER

PRESS

MH-38-1 & MH-38-2

PARTS

COMPONENTS (3)

COMPONENTS

& LOOPER

DRIVING

COMPONENTS

COMPONENTS

.....•...•..•..•.•........•...

SHAFT & CRANKSHAFT

COMPONENTS

COMPONENTS .
PLATE

COMPONENTS

...............

ROCKER

........

....

......

...••.

...••..•....•.•...•...

(1).

SHAFT

. . . . . . . . • . . . . . . . • 1

....

•.

. .

.......

.

.............

.... . .

..................

... ...

.

...

COMPONENTS . . . . 5

COMPONENTS

.

..............

..•

.

..•.......

....

..

..•••

.

..••••

...

....

. .

. . .....

...

..

..

..

2
3
4

6
7
8

. 9

10
11

12
. 13
. 14

1.

FRAME,

23

COVERS

26

24

25

~

tgO

&

TENSION

28

29

PARTS

30

COMPONENTS

(1)

3

---

Ref.
No.

2
3

•4A

6
8

9
11
10
14
15
16
17
18

Part No.

B-1180-541-000
B-11

23-038-000
B-1124-038.000
B-1912-038-0AO V Take-up thread tension controller

01

0 asm.

O·SP

0-SP

SS-6090420-SP Screw
8·1914-038·000 Tension disc
B·3149-123·AOO Tension spring I
SD-0380551-SL Hinge screw
SS

· 209051
8·1106·122.000
SS

-9151160-CP
8-1905-038-000
B-1906-03R-000
SS-4091

Description

Plug
Bed

screw stud, rear

Bed screw stud,

Screw, controller

Bed

leg

•

•.

Screw

Take-up thread tension lever

. •

Washer

•

..

Screw

front

Amt.
Req.

1

®
®

CD

1
2

Ref.
No.

19
20
21
22
23
24
25

26

28

29

30

38

39
40

Part No.

B-1907-038-000
WP-0371016-SD
SS

-709071
SD.0530221-SD ,
SS-4091
B-1117
B-1118.038.000
B-1164-012.000

SS-4091
8·1113-038-000A
8-1114-038-000A
8·1166-122.000 .
B-1111.038.000
SS-811

01

.038-

01

031

0-SP

0-SP

000

O·SP

Q-SP

Description

Frame thread eyelet

. Washer

•..

Screw

..

Hinge screw

V Screw

Head cover

•.•

Gasket

Rubber plug

Screw
Si

de

plate

•.

. Gasket

Plug
Attachment clamp bed slide
.

•.

Screw

Amt.

Req.

4

6

2

- 1 -

2.

ERAME,

COVERS

&

TENSION

PARTS

35

COMPONENTS

36

(2)

40

~--

Ref.
No.

*1

5
6 SS-6060210-SP
2
3
4

7
8

9
10
11
41

12
13

14
15
16
17
18

19

Part No. Description

B-1104-038­B-1104-

SS-211 0920-TP Screw 2
B-1103-038-DooV
B-11 06-038-000
B-11 06-038-

B-1110-038-00~Take-up

B-1109-038-00 . L/Take-up cover latch

SS-6080320-SP • . . Screw

B-1107-Q38·000
SS-6080320-SP
WP-0330500-MB
B-11
B-2213-038-000

SS-7090520-SP
B-2213-019-000 Take-up eyelet
B-2207-Q38-000

55-7090710-SP
SS-7091110-SP
WP-0371 016-SD

0AO

038-QAO

BOO

08-038-000

~

ed

sl

ide

Bed

slide spr

ing

~

..

Screw

Throat

plate

V.

ooper thread take-up cover

Looper thread take-up cover

(for

3/8",5/16",1/2")

cover latch spri

Take-up cover spring

..

Screw

•

••.

Washer
Take-up cover latch
Cast-off wire

upper

Screw

Cast-off

•.

Screw

•
Screw

Washer

wire

(B)

support,

(C)

(B)

support, lower

suppo

(C)

ng

---

Amt.
Req.

1

CD

®

1

CD

Ref.

No.

20

23 SS-7090520·SP
24 B-2216-026-000
25
26 B-2208·038-000

Part No.

B-2212-

019·000

SS-7090510-SP Screw

B-2405-038·0AO

lc:

Description

Cast·off wire
Screw

Auxiliary cast-off

Cast-off

wire support

Looper

thread tension

(B)

(E)

bracket

post

0 asm.

(

1)

rt

1 29
2

1
2 32
2

1
2
4
2
2

27 B-2405-038-000 Looper thread tension guide

NS-611 0-31 0-SP (/Looper

28

B-3219-232-000
B-3214-047-000 . . . Disk

30
31

B-3168-555-BOO

B-3216-047-000~.

SS-2090

33
35

B-1115-Q38-000

36 SS-7111120-SP

37 SS-811 0750-SP Screw

B-1618-038-0AO

38

B-1116-Q38-000 Top cover gasket

39

B-2401-Q38-000 Looper thread eyel et

40

~

~

510-SP

thr

ead tension

ooper

thr

ead tension

..

Spring

Nut
Screw, for tension guide
Top

cover 1

...

Screw 4

Thumb

stud asm.

post nut
post

pin

Amt.
Req.

1

1

2

1

CD

®

CD

@

®
®
®

2

-

2-

3.

FRAME,

COVERS

10

&

TENSION

PARTS

COMPONENTS

(3 )

3 1

~p

)o~~

~/\

Ref.
No.

23
24

2
3
4
5

6
7
8

9
18
19 SS-8111160-SP Screw
22 B-2320-038-000
13
12
10

11
14
15 B-2421-019-000

Part

No.

B-2301-038­B-2303-038-000 / Tension releasing shaft
B-2314-019-000

B-2312-019-000 V.Tension spri
B-2311-019-000
B-2313-019­B-

3132-012·000
B-3126-012­B-2307-019-00oV :rension post

231

B­B-2306-019­NS-6110310-SP

B-2402-019-000
SS-506041
B-2324-038-000
SS-709041
SS-709051 0-

0-019-

000

000

000

000
000

0-SP

0-SP

SP

Needle thread tension bracket

~

ension

(./':

Tension spring
Tension spring bushing (B)

j;::

Tension releasing disc
Tension disc

~

Tension

Tension thread guide
Nut

Needle
Thread guide
...

Screw
Thread guide bracket
...

Screw
Screw
Needle

pt

ion

Descri

post

JJUt

ng

bushing (A)

releasing

thread guide bracket

thread eyelet

pin

support

Amt.
Req.

1
2
2
2
2
2
4
2
2
2

2

4

\

~

~

~

Ref.
No

17

16
20
21
25
26

28

29
30

31
32
33
34
35
36
37

38

39
40
41
42

43

Part

No

038-000

-609031

.

0-SP

0-SP

000

0-SP

SD

0-SP

~

/ Screw,

.

B-2318-038-000
SS-6111 040-SP
B-2319·
SS-4622340-SP Screw 1
NS
WP-0371016-SP
B-2202-038-0AO
SS

-209051
B-2201-038­B-2418-019-000
B-2402-038-000
SS-712091
SD-0980401 ­A-1632·007-000
B-1119-038-000
WP-0612056-SD

SS-709051
B-1622-038-000 Spring,
B-1121-038-0CO
B-1621 -038-000 V Bushing,
RE-0500000-KO Snap nng
B-

2204·038-000

Descri

pt

ion

Tension
Screw

Take-up

Nut
Wash
Loope
Screw
Looper thread eyelet
Looper thread
Looper thread
Screw 2

Hinge screw
Washer
Looper thre
.

Top

Gasket

releasing

spring

er 2

r thread

.. Washer

for

for

cover oil

for

shaft crank

tube as

m.

tub

e cap

tub

e (B)

ad

cover 1

top cover oi l shield

thumb

stud

sh1eld

thumb

stud

--------

32

33

36

Amt
Req.

1

2

1

1

3

1

4

.

- 3 -

4.

13

MAIN

SHAFT

14

15

&

UPRIGHT

4

SHAFT

COMPONENTS

10

9

~

I

1

..

32

1.

31

41

0'

Ref.
No.

1
2
3 8·1214-038·000

39

4 SS-815115D-SP
5

6

7
8

9
28
10
12

*14

13
15

17

19
20
21
22
23
24

25

Part No.

8·3536·155-ClOO
R0-1542401·00

B-3534-155-oOO

8·1203-038-000 Main shaft bushing, center
8·1201-Q38-Cl008
8·1305.012-ClOO
SS-8660810-TP
CS-1471012-SH
SS-815041
8·1218..()12..()00 Oil
SS-8151150-SP
8·161

SD-0700351-SD
SS-861143Q-SP
8·1609-038·000 Feed
8·1624-552.000
SD-Q260271.SP
8·1623-552·000 Rachet pawl
8·1616..()38..()00
8·1705-038·000 Feed
8·1302.038.000

SS-866081 Q-TP

O.SP

Q-038-QAO

~

Description

Plunger

thrust
. • . Rubber ri
Plunger spring
Plunger
Screw,

for

Main shaft
Gear

•.•

Screw
Main shaft
Screw

felt

Main shaft bushing, rear screw
Feed

eccentric

Feed regulating screw

• . • Screw

lift

Torsion spring

•••

Screw

Rachet gear

driving

Upright

shaft bushing,

Screw 2

Amt.

Req. No.
screw
ng

center bushing

thrust

collar

asm.

(8)

1

2
1

2

1

<D

®

driving rod 42 SS-8152080-SP .

rod

upp

er

1

Ref.

8-1306.012.000 /pinion

26
27 8·

8·1235·122

29

8-1204·122·000

30

SS

12

SS-8151150-SP

31

T

32

8·1706.038·000 V Feed drive eccentric

33

SS-815071

34

B-1303·122.000

35

No

Part

162Q-155-QOO

-8151150-SP

A-0690801-RO Plug 2

.

·000

O·SP

36 8-1306.012..()00

SS-8660810-TP

37

8-1301.038.000

38

48 T A-0570601-MO

R0-1331701-00

40

8·1217..()92..()00

41

8·1233.012..()00

43
50

B-1307.038..()00

49

SS·8660810·TP

Description

Rachet connecting pin
Gasket
Main shaft bushing, r
Screw
Screw

••

. Screw

Upr

ight s

haft

bushing, lower

Mitre

gear
Screw
Upright shaft
Plug
Rubber ring

Hand wheel

..

Screw

•.

. End screw

Mitre gea

••

. Screw

r,

large

ear

Am
Req

2

t.

.

1

1

1
2

1

2

2

1
2

-

4-