Juki AMS-215C User Manual

•JUKI

Medium-sized

Computer-controlled

ENGINEER'S

Cycle

Machine

MANUAL

PREFACE

This Engineer's Manual is written for the technical personnelwho are responsible for the service and maintenance

of

the

machines.

The Instruction Manual for these machines intended for the maintenance personnel and operators at an apparel

factory contains detailed operating instructions. And this manual describes "How to Adjust", "Results of Improper

Adjustments", and other information which are not covered by the Instruction Manual.

Itisadvis^letouse

carrying

This

"HowtoAdjust",

<xit

manual

the maintenanceofthese machines.

mainly

the

pertinent

consistofthree

andthe

third,

Instruction

sections;

"ResultsofImproper

Manual

the

first

and

Parts

List

section

Adjustment."

presents

together

"Standard

with

this

Adjustment",

Engineer's

the

Manual

second

when

section,

r

CAUTION

X

1. When a pattern

winder

turned

automatically. the

away from in operation.

3.

switchorthe

ON,feeding frame O

feeding

During

operation,be careful not to

change

So,

frame.Besuretokeep

the

feeding frame while

feeding

never

is made, or

frame

comes

put

your

the

bobbin

switch

is

down

fingers

under

your

fingers

the

machine is

allow

your or any other person's head or hands to come close to the

Be

suretoturn

removing belt cover O

Do

cover

handwheel, V belt or motor. Also, do not place anything near any of

Doingsomay be

dangerous.

not

removed.

the

operate

these

power

switch

OFF

before

and

the

Y travel

machine

with

shaft

the

cover

belt

parts while is in operation.

4. Ifyour machine is equipped whit a belt cover, eye guard or any other protections, do not operate your

machine with any of them removed.

CAUTIONS

BEFORE

OPERATION

1. Remove bed fixing bolt O before starting

operation.

When

transporting

fixing bolt

3.

Precautionsinhandling

Do

food

not

and

0>

place

drink.

the

your

floppy

AMS-215C,

floppy

disks

disk

nearanashtray

Install

bed

RIter

2.

Clean

the

filterofthe

Do

not

touch

or

the

fan

exposed

[13HI

once

every

partsofthe

week.

floppy

disk.

CjD

Do

not

material.

bring

the

floppy

disk

=3;

12

closetoa

magnetized

4.

Do

not

or

higher)ora

The

sewing

(In

the

pulley

the

reverse

place

the

floppy disk In a

place

machine

directionofthe

side.

Never

direction.

hot

exposedtodirect

should

run

counterclockwise

arrow)asobserved

allow

the

machinetorun

place (51*0

sunlight.

from

In

5.Besureto

the bed, be sure movethe feeding frame to the

6.

Before

applyafew

surface

supply

starting

dropsofthe

0.

oil

the

until

the

machine

lubricating

oil

which

level

has

oil

reaches

been

tothe

red

marksQaic*

left.)

newiy

set uporhas not

crank

assembly

0

through

Be

sure

to load or unload floppy disk O whilethe

power is ON. if

turnedONor

the

data

storedinthe

®''

gauge.

been

used

foralong

holeO,one

the

power switch should be

OFF

with

droptoracing

the

floppy

disk

maybedestroyed.

(When

lubricating

periodoftime,

disk

mounted,

8. The

AMS-215Cisprovided

which

[When

detected

So,

sometimes

extends

inputting

with

beyond

accuracy.

pattern

data

the

using

data

with

sewing

the

main

area

main

(180mmx

unit

whichislarger

unit

input

thanthe

function

110

function,

sewing

as standard,

mm)

cannot

the

travel

areaspecified

besewnevenif

limit

however,asewing

inputting

ofthe

sewing

area

maybecreated.

pattern

it.

cannot

be

9. To raise the sewing machine, attach grip O supplied withthe sewing machine and raise the sewing

machine

Be

in

the

suretouse

%

direction

stopper

of

the

arrow.

0 when working with

the

sewing machine raised.

10.

When

the

switched

the

thread

completed

disk

will

threader

ON,

tension

the

open.

sew

thread

and

the

desired

disk

trimming,

sewing

closed.

machine

sewing

Once

the

are

pattern

you

thread

with

have

tension

X

Closed

1 f//

oi

Opened

11. When polyethylene oiler O

oil,

removeitand

12.

Priortooperation,besuretoclose

box

cover

In order to prevent

into

the

control

may

leadtomalfunctionsorfailures.

box.

drain

the

Dust

becomes

oil.

dust

into

the

filled with

the

control

from getting

control

box

(Don't

Opem

CONTENTS

1.

FEATURES

Z

SPECIFICATIONS

3.

OPERATION

3- 1. Names of the main components 6

3- 2.

Control

3-3.

Operation

3-4.Other

3- 5.

Checking

3- 6. Operation procedure 14

3- 7.

Precautions

4.

DESCRIPTION

4-1.

Sewing

4- 2. Control box 23

4-3.

Operation

4- 4. Motor 26

5.

ADJUSTMENTS

5-1.

Mechanical

5- 2.

Electrical

5-3.

Rotary

box

panel

switches

before

during

OF

machine

panel

parts

DIP

switches

panel

EACH

operation

MAIN

for

COMPONENT

setting

the

test

mode

1

3

6

8

10

12

13 20

21

21 25

27

1

121

6.

FUNCTION 127

6-1.

How

toset the

6-2.

Error

messages

6-3.

Changing

6-4.

Thread

6-5.

Temporary

6-6.

Functionofsetting

6-7.

Travel

limit

6-8.

Pattern

6-9.

Memory

6-10.

Max.

sewing

6-11.

Combining

7. MAINTENANCE AND INSPECTION 171

7-1.

Cleaning

7-2.

Changing

7-3.

Replacing

7-4.

Adjustment

7-5.

Replacing

7- 6.

Howtomeasure

7-7.

AC

input

8. TROUBLES AND CORRECTIVE MEASURES 182

8- 1.

Troubles

8- 2.

Troubles

8- 3.

Troubles

the

settingsonthe

breakage

stop

detecting

memory

detecting

function

the

second

function

switches

enlarging/reducing

back-up

function

speed

limit

control

patterns

the

filter

the

directionofrotationofthe

the

fuse

and

maintenanceofthe

the

printed

circuit

voltage

and

correaive

and

corrective

and

corrective

theline

voltage

tap

measures measures measures

panel

function

origin

function

knob

boards

displays

sewing

motors

(mechanical (electrical (Sewing

conditions)

parts)

machine

127

165

166

167

168

169

171

172

172 177

179

ISl

182 189 197

9. VARIOUS INFORMATION ON THE SEWING MACHINE 206

9-1.

Changing

9-2.

Options

9-3.

BLOCK

9-4.

SOLENOID

9- 5.

VR-SW

9- 6.

SENSOR

9- 7. AIR

PEDALSWcircuit

9- 8.

9- 9.

POWER

9-10.

POWER

9-11.

MOTOR

the

diagram

circuit

VALVE

circuit

conneaion

sewing

circuit

diagram

circuit

diagram

specification

diagram

(A) 221

(B) 222

diagram

206

209

215 216

217

218 219 220

223

9-12. CLUTCH BRAKE connection diagram 223

9-13.

SYNCHRONIZER

circuit diagram

224

AMS-215CSB,

AMS-215CHB,

AMS-215CGB

(Computer-controlled cycle Machine with a Double-stepped Stroke Feeding frame) 225

1.

FEATURES

2.

SPECIFICATIONS

3.

OPERATION

OF

AND

THE

SPECIFIED

SEWING

VALUE

MACHINE

3- 1. Configuration 225

3- 2. How to operate the pedal switch 226

3- 3. Sewing without using the double-steppedstroke function 226

4.

ADJUSTMENTS

4-1.

Adjusting the mechanical components 227

5.

PARTS

DOUBLE-STEPPED

6.

MATERIALS

TO

BE

REPLACED

STROKE

WHEN

FEEDING

CHANGING

FRAME

THE

TYPE

STANDARD

MACHINE

TYPE

MACHINE

TO

THE

6- 1. Block diagram for the AMS-215CSB, -215CHB and -215CGB 244

6- 2. Air valve schematic diagram for the AMS-215CSB, -215CHB and -215CGB 245

6-3.Pedal

AMS-215CSL,

(Computer-controlled

1.

FEATURES

switch

schematic

AMS-215CHL,

Cycle

diagram

AMS-215CGL

Machine

with a

Double-stepped

Feeding

Frame) 247

225

227

243

244

246

247

2.

SPECIFICATIONS

3.

OPERATION

OF

AND

THE

SPECIFIED

SEWING

VALUE

MACHINE

3- 1. Configuration 247

3- 2. How to use the PK47 3-pedal unit 248

3- 3. How to operate the pedal switch 249

3- 4. Sewing with the monolithic feeding frame installed on the machine

3- 5. How to use a plastic blank 250

4.

ADJUSTMENTS

4-1,

Adjusting the mechanical components 251

5.

PARTS DOUBLE-STEPPED

TO

BE

REPLACED

FEEDING

WHEN

FRAME

CHANGING

TYPE

THE

MACHINE

STANDARD

TYPE

MACHINE

TO

247

249

251

THE

267

6. OPTIONS

7. dimensionsOFTHE

8.

MATERIALS

8-1.

Block

diagram

2.

8-

8- 3. Pedalswitch schematic diagram

FEEDING

for

the

AMS-215CSU-215CI^an

FRAME

•• "' V

269

. .

270

271

'

272

AMS-215CST,AMS-215CHT

1.

FEATURES

2.

SPECIFICATIONS

3.

OPERATION

3-1.

Configuration

3-2.Explanationofoperation

3-3.Howtouse

3-4.Sewing

3-5

Cautions

3-6.Controlling

3-7.When

3-8.Preparation

3. 9.

Precautions

4.

ADJUSTMENTS

4-1.

Adjusting

5.

PARTS

INVERTING

6.

OPTIONS

7.

WHEN

8.

MATERIALS

8-1.

8-2Air

8-3.

TO

MANUFACTURING

Block

valve

Pedal

AND

the

with

the

tobe

the

machineisusedasthe

and

tobe

the

BE

REPLACED

DEVICE

diagram

schematic

switch

(Computer-controlled

SPECIFIED

panel

PK47/3-pedal

inverting

taken

when

inverting

crank

precautionstobe

taken

during

mechanical

WHEN

TVPE

MACHINE

AN

for

the

AMS-215CST

diagram

schematic

diagram

VALUES

unit

intermediate

creatingapattern

presser

standard

taken

operation

components

before

CHANGING

INVERTING

•••• ' ' ]^

for

the

AMS-215CST

Cycle

Machine

with

removed

type

machine

operation

THE

STANDARD

INTERMEDIATE

. **

and

-215CHT

TYPE

PRESSER

.*

Inverting

Device)

y.'

'

y •

''

"

MACHINE

'

TO

274

275

276

277

279

280

^gQ

^go

281

THE

303

305

306

1.

FEATURES

1.

Easy

pattern

The

work

The work holder is driven by a stepping motor. You can change a stitching pattern simply by specifying the

pattern No. affected

2.

Wide-range

The X and Y scale can be independently set 0.01 to 4 times the sizeofthe original pattern. This is further

supported by the machine's unique function whereby pattern enlargement/reduction is done by increasing or

decreasing the stitch length or the number of stitches. The combination of these functions permits highly

flexible pattern enlargement and reduaion.

3.

Permits

As for input through the main unit, the feed is operated by meansofa switch in the operation panel. In this way, appropriate data are input so as to meet the requirementsof the sewing material which corresponds to

the sewing needle. Pattemscan also be easily input using the optional input device (PGM-5A).

change

holder

is

pattern

the

inputofvarious

scale

pattern

data

4. Micro

5.

6.

7.

8.

9.

floppy

A 2DD 3.5-inch micro floppy disk is used, accommodating 44 to 691 patterns.

Easy

operation

Key

switches

user's convenience and for better design.

Consistent

A

stepping

material.

selection in accordance with each sewing product.

The

incorporation of a 16-bit microprocessor allows

4,000

stitches

The

max.

16,000

stitches

stitches.

Safety

This

machineisdesignedtoindicateanerror

identify incorporated

Easy

workpiece

In

additiontothe

which allows a workpiece to be set easily.

disktostore

and

are

used

for easier

sewing

quality

motorisusedtofeed

This

feed

timing

per

pattern.

numberofstitches

canbeinput.

and

the

testing

problem

intothe

facilities

at a

machine.

setting

second

sewing

better

design

canbechanged

fora

This

pattern

operation.

the

material,

sewing

enables

data

The

compact

allowing

using

patternisnormally

the

machinetoadapttothe

message

glance.Inaddition,afacility

This

facilityisuseful

origin

setting

function,

the

memory

for

liftofthe

operation

for

precise

the

4,000.

upon

the

for

testing

fast

troubleshooting.

switches,

detection

feeding

panelis

control

located

according

which

on the tablefor the

to the

permits

optimum

thickness

feed

of the

timing

machine to produce a maximum of

For

the

switches

combined

decorative

ofa

frame

pattern,asmany

stitching

malfunction,

andother

isas

highas25mm(standard),

with

many

enabling

functions

as

you

has been

to

10.

11.

12.

Assures

The

provide

speed.

Cylinder

The

stable stitch length regardless of sewing

AMS-215Cisdesignedtoadjust

the

optimum

bed

AMS-215C

maximum

stitch length can be increased to a maximumof12.7 mm.

feed

sewing

canbeused

stitch

timing

for

length

the

sewing

speed

for

the

sewing

speed.

cylinder

canbeincreased.

bed

sewingbyremoving

- 1 -

for

This

speed

each

changes.

stitch

ensures

the

before

consistent

throat

feeding

stitch

plate

the

material

lengths

auxiliary

for

cover.

soas to

any

sewing

13.

Flexible A

material. The needle can be changed with the face cover installed. Furthermore, the same needle bar can be

used regardless of the typeofneedle.

14.

Easy Since the bobbin winder is located close to the operator, the operator is able to easily wind the bobbin thread.

15.

Multi

The

indicating function, which enhance the machine's sewing capability.

16.

Shorter

At the endofsewing, the feeding frame automatically returns to the sewing start position, allowing for a

quick sewing operation.

17.

Many

A micro floppy disk can accommodate nine different commands, and various pattern figures can be sew by

combining them.

18.

Capabilityofrespondingtopattern

response

DPxl7

needle is used to sew heavy-weight material, while a DPx5 needle is used to sew light-weight

windingofthe

sewing

machine comes with a needle thread breakage detecting function and a bobbin thread replacement

the

kindsofpattern

functions

time

to

material

bobbin

required

figure

for

changes

thread

sewing

changes

improved.

The machine is equipped with a feeding frame and feed plate which can be removed with the simple touch of a key. This allows the machine to respond flexibly to any pattern change. (Option)

19.

Feeding The pneumatic drivingsystemfor the

frame

mechanism

improved for

feeding

greater

stability

frameallowsthe material to be fed with greater stability.

Regardlessof the thickness of the material, consistent pressure is obtained.

20.

Consistent

sewing

speed

The 400W 4-pole sewing machine motor accommodates a standard pulley,allowing the machine to run at a

consistent sewing speed. (G type: 550W 2P motor)

21.

Capable The sewing

22. A

A compressor unit is optionally available.

It can be attached to your AMS-215C with no additional machining.

23. A milling

A

of inputting

machine

compressor

unit

milling

unit is

and

modifying a

complicated

sewing

pattern.

is capableof inputting and modifying needle entry points in 0.1 mmsteps.

unit

canbeattachedtothe

optionally

available.

It canbe

machine

attached

after

the

to your

the

set-up

set-up.

AMS-215C,

which

allows

you to

plasticfeeding frame or aluminum feedingframe as desired with ease.

24.

Patterns

AMS-215C.

used

for

the

AMS

series

modelofsewing

machine

can

alsobeused

for

The AMS-215C is capableof usingsewingpatternsthatare used for all the AMS series models of sewing

machines. patterns When

However,

for the

AMS-215C

usinga sewing

notethata sewing

cannot

be usedfor the otherAMSseries

pattern

used

for the otherAMS series

pattern

that

exceeds

thesewingarea of the

models

of sewing

models,

the

AMS-215C

AMS-215C.

machine.

willconvertthe

conventionalstitdi length of 0.16 mm to 0.1 mm. This means that the stitch length and shape of the sewing

pattern may change.)

machine

the

The sewing

(Note:

a

- 2 -

2.

SPECIFICATIONS

The

specifications

follows:

ofthe

AMS-215C

(1-needle,

lockstitch

cylinder

bed

computer-controlled

cycle

machine)

areas

1. Sewing area:

2. Max. sewing speed

(adjustablein 3 mm or less):

3. Stitch length:

4. Feed motion

5.

Needle

6.

Needle:

bar

of

feeding frame:

stroke:

7. Lift of feeding frame:

8. Intermediate presser stroke:

9.

liftofintermediate presser:

10.

Shuttle:

11.

Bobbin

case:

12.

BcA)bin:

13. Lubricating oil:

14.

Thread

trimmer:

15. Wiper:

16. Intermediate presser lifter:

17. Memory storage:

18. Sewing operation:

19. Feeding frame:

20.

Start:

21. Temporary stop facility:

X (lateral) direction 180 mm

Y (longitudinal) direction 110 mm

2,000 s.p.m.

Max. 12.7 mm (adjustable in 0.1 mm steps)

Intermittent feed (2-shaft drive by stepping motor)

41.2

mm

DPxS,

DPxl7

25 mm (standard) Max. 30 mm

4 mm (standard) (0, 3 to 7 mm)

20

mm

Large-capacity, semi-rotary type (self-lubricated) (Semi-rotary

double-capacity hook for the sewing specification G)

Large-capacity, semi-rotaryshuttle type (Bobbin case for the

semi-rotary double-capacity hook for the sewing specification G) Large-capacity shuttle type (Bobbin for the double-capacity hook

for the sewing specification G) New Defrix Oil No. 2 (supplied by oiler)

Consistsofmoving knife and counter knife (actuated by grooved

cam)

Magnetically driven (with release switch) Vertical motion driven by an air cylinder (with release switch)

3.5 inch

miao

floppy disk

Memory capacity: 691K

44 to 691 pattern can be stored in a cassette

Starts/ends at sewing start point or the 2nd origin

Descends when the feeding frame switch is pressed. Another press on the switch causes the feeding frame to ascend.

The machine is started by turning the start switch ON with the

feeding frame down.

Used to stop machine operation during a stitching cycle. After a

temporary stop, the feeding frame can be moved along the stitching line by operating the backward or forward switch. The interrupted

stitching cycle can be completed by pressing the start switch.

Alternatively, the return to origin switch may be pressed for quick move to the sewing start point or the 2nd origin.

- 3 -

22. Enlarging/Reducing

23.

Enlarging/Reducing

24. Max. sewing speed limitation:

25.

Pattern

selection:

26. Pattern checking facility:

27.

Error

indication:

28. Programming:

29.

Bobbin

30. Memory backup:

31. 2nd originsetting facility:

32. Needle-upstop facility:

33. Sewing machine motor:

34.

35. Gross weight:

36. Power consumption:

37. Operating temperature range:

38. Operating humidity

39.

thread

Dimensions

Line

voltage:

facility:

method:

counter:

(excluding

range:

thread

stand):

Allowsapatterntobe

axis,

independently

Scale:

0.001

to 4

Pattern

enlargement/reduction

eitherstitch

The

a

rangeof180to2,000

1to999

Nos.

A

pattern

machine ON/OFF switch to OFF.

17

typesoferror

Involves

jump

TeUs

works

In

case

length

maximum

patterns

configuration

point/linear/arc

data,

sewing

the

timetoreplace

asa 0 to

ofa

power

automaticallybestoredinmemorysothat

cycle

mayberesumed

the

jX)werisrestored.Nofloppy

held

for

100

hrs.

Using

jog

keys,a2nd

canbesetin

2nd origin is also storedin

When

be

broughtupto

the

needle

switchONor

400W,4Pelectronic-stop

specification G)

enlargedorreducedontheXaxis

when

sewingapattern.

times

(0.001

stepscanbe

canbedonebyincreasing/decreasing

or the

sewing

number

speed

s.p.m.,

or stitches.

canbeset

using

limitedtoany

the

canbeselectedbyspecifying

canbecheckedbysetting

indication

speed,

999

interruption,

ring

are

given.

numeral

the

data,

and

stitch

bobbin.Ifthis

counter

with

the

temporary

length.

resetting

pattern

simplybypressing

diskisnecessary.

origin

(needle

position

desired

does

the

OFF

position

not

upper

(provided

within

memory.

stop

inits

upper

positionbyturning

the

READY

motor

(550W,2P

external

the

lampisON.)

1,200mm(W)X977mm(L)x1,200mm(H)

250

kg

1

KVA

5'to40°C

20 to 80% (no

Rated

voltage

dew

condensation)

±10%

50/60Hz

selected)

value

control

the

desired

the

sewing

stop,

facilityisnot

function.

being

used

interrupted

set

ready

The

afterasewing

sewing

position,

for

the

area.

the

needle

the

sewing

and

within

knob.

pattern

thread

used,

wiU

sewing

switch

memory

cycle)

The

needle

threading

Y

trim,

it

after

is

set

can

- 4 -

40. Air

41. Air consumption: 1.8 N{/min.

42.

pressure

Input

functions

used:

of

the

main

unit:

5 to5.5

Zigzag

Offset

Different

trimming,

etc.)

Point

kgf/cm"

sewing

adding,

(0.5to0.55

_|~

1_

types

of sewing

temporary stop,

point

moving,

MPa)

Spline

Curve,linear, point

machine

feeding

point

control

frame

erasing,

(pattern

up/down,

inverting etc.

erasing,

speed change

thread

- 5 -

3.

OPERATION

3-1.

Namesofthe

main

components

O Power ON/OFF switch

O Sewingmachine head

0 Sewingmachine

O Control box

0

Operation Feeding

©

O Start switch

0

Air

©

Temporary

0 Thread stand

frame

regulating

panel

device

stop

motor

switch

0

Power

To turn ON/OFF the sewing machine motor, control box and operation panel.

0

Sewing

The work holder, which is driven by the stepping motor, moves a workpiece in synchronization with the

vertical motionofthe needle bar. This mechanism permits complicated pattern sewing.

0

Sewing

The use of an electronic stop motor allows sewing at the desired speed under the control of the clutch and

brake.

O

Control

Acts as the brain which controls the sewing machine. Elearonic components are incorporated, including

ON/OFF

machine

box

switch

head

motor

printedcircuitboardsand transformers, andsends out variousinput and outputcommandsto other

components.

- 6 -

0

Operation

Consists

outputs

The

the needle point.

The

0

Feeding

Turns

O

start

Actsasthe

panel

mainlyofswitches,

displaydata and switch information.

main

unit

input

operationisperformed

memory

switch is used for selectingoperations and changingset

frame

switch

ON/OFF

switch

the

sewing

feeding

command

digital

frame

switch,

solenoid

displays

and

starts

andabuzzer.Itreceives

whereby

at the

the

time

sewing

0 Air regulating device

Consists theair

pressure during installation of the sewing machine.

0

Temporary

Pressthis switch to stop the feed and sewing

switchispressed

At this state, the

been performed by raising or lowering the needlethreadingswitch.

0

Thread

of the

source

stand

filter

regulator,

pressure,

stop

switch

during

returntoorigin,

pressure

indicating

a stitching

gauge,

it withan error

mechanism

cycle,

the

machine

forward

and

backward

air

cock,

code.

commands

patternisinput

specified

based

stops

to lift or

on the

pressure

The

device

of the sewing machineduringoperation. Whenthis

without

switches

values.

data

switch

is also

performing

become

while

lower

stored

andother

valid after

from

the

moving

the

in the

the

feeding

micro

parts.Itdetectsadrop

usedtoadjust

automatic

thread

control

feed

soastoadjust

frame.

floppy

the

operating

thread

trimming.

trimming

box,

disk.

and

in

air

has

- 7 -

3-2.

Control

box

panel

r

Roppy disk

insertion

Eject button

o

Maximum

automaticaUy

counterclockwise.

slot

-m

speed

knob/Bobbin

S^Tset

adjusted

w

❖

E

Fig. 3-2

winder

the

maximum

accordingtothe

switch

sewing

speedofthe

stitch

length.Ifa

Microfloppy disk

Shutter

plate

Write protect hole

Fig. 3-3

machine.

slower

NormaUy,

speedisrequired,

Write protect tab

the

sewtag

rum

this

sj^

knob

is

m^Ae

state

come

that

pressing

that

0 Floppy

The

^ter

right

fiSore

too?

and

the

down,

then

thereisnothing

the

knob

the

bobbin

disk

operation

"ur^ng^ON

until

the

turning

you

feeding

the

under

(to

winder

driver

LED

shows

frame

sewing

turn

the?^^

eject

push-button

O^

toe

switchisoperative

(to

turn

ON

will

come

machine

the

needle.)

OFF

the

that

the

switch

pops

power

switch,

the

bobbin

winder

switch)

down.

Turn

ON

the

rotatesata

The

bobbin

driverisinaspecified

slowly

out.

press

constant

machine

winder

switch)orturamg

while

the

insert

the

toe

eject

- 8 -

canbestoppedbyre-tuming

feeding

floppy

pushbutton,

while

the

start

switchtoallow

speedtowmd

ON

frameisin

operating

disk

with

and

state.

side©(as

take

the

sewing

the

machineisin

the

ON

the

temporary

highest

showninFig.

out

toe

floppy

the

intermediate

the

stop

position.)

presser

start

switc^

switch.

3-3)

disk.

«op

to

(N

faang

(3) Write-protect hole (Fig. 3-3)

When the write-protect tab is moved so as to open the write-protect hole, it is no longer possible to write data on to the disk. Do this to store programming data. For writing data on to the disk, move the write-

protect tab until it is exposed.

[Caution]

Never

turn

ON/OFF

(4) Micro floppy disk (Fig. 3-3)

Precautions when handling and storing the floppy disk

1) Do not open the shutter and touch the magnetic surface.

2) Do not apply pressure on the shutter plate or the opening/closing spring (slider), or else the disk may

become damaged.

3) Do not allow the hub to become damaged and do not use the disk with dust on the hub, or else errors

may occur. Always keep the hub clean.

4) Do not use thinner, alcohol or Freon gas on the disk.

5) Do not use erasers on the disk.

6) Do not eat or drink near the disk.

7) Do not store the disk in a place where thereis a magneticfield.

8) Do not store the disk in a dusty place.

the

power

switch

with

the

fioppy

disk

loaded.

e Needle

(1) Whenthe needle threading switch is pressed side while the sewing machine is stopped, the intermediate

presser and the feeding frame will

pressed during needle threading, the sewing machine will not run.

(2)

When forward

lowering the needle threading switch.

Ifthe

thenstoppedwith the needle up, by raising/lowering the needlethreadingswitch. Prior to the above

operation,

sewing LED is lit up.)

O Scale switch

Takingapattern X-axis

patternis set eitherby increasing or decreasingthe stitch length or the numberof stitches. Pattern

enlargementorreduction

input,

0 Sewing

When

normal

Whenthisswitch is set to the position,only the feed

Whenever position

threading

the

temporary

and

backward

needle

be sure that thereis

and/or

the

enlargementorreduction

machine

the

programtooperate

sewing

enlarging/reducingapatternorsewinganewly

to check the shapeof the

position to start sewing.

switch

stop

is notat its

(INC/DEC

written

Y-axis

independently

ON/OFF switch

operation

come

down to allow the needle to be threaded. If the start switch is

switchispressedONand

switches

highest

become

resting

nothing

valid

position

underthe

of Number of stitches)

on the

floppy

disk as

withinarangeof0.1%to400%.

dataisread

accordingtothe

the

for

computation

ofa

patternisalways

sewing

machineisstoredinthe

programbysetting

pattern

in the

after

thread

(error

needle.

100%,

program.

the

sewing

machineisstopped,

trimming

[3]),

the

(Theneedle

theoriginal

while

theSet

has

madiine

threading

pattern

The

Ready

been

performed,byraising

willbeautomatically

canbe

enlargementorreduction

indicator

donebyincreasingordecreasing

floppy

disk,

the

sewing

mechanism

programmed

After

completing

machine

will work.

pattern,

the

returntoorigin,

driven

switchis valid while the

enlargedorreduced

lampisON.

the

machine

switchtothe

set this

check,

switch

set theswitchto the

the

stitch

will

perform

^

to the 131

For

or

and

in the

of a

point

length.

position.

- 9 -

3-3.

Operation

panel

READY

indicator lamp-

RE^

Pattern

X

Scale

Y

Scale

Counter

Error

I

Number

I Input

No.

Model

StitclitypeiSpeed

Displays

Funclion

Pijch

Misn

Forward

Backward

Return

Origin

Reset

(select)

Operation swKches Setting switches

to

Pattern

No.

X

Scale

(review)

Y

Scale

(end)

Counter

(set)

|

1

•JUICI

7

4

<

1 2

:1

0

(Cancel)

:|

AMS

8

•

5

(Enter)

T

Set

9

6

•

3

Ready

(Test)

ready switch

Fig. 3-4

Setting switches

Theseswitchescan be set immediately after the powerswitchis turned ON or when the READYindicator

lampgoesout by

usingthe

The

numeric

designated

pressing

keys. The

number

theset

entered

must

consistofthree

ready

switch.

After

pressing

a setting

switch,

the

desired

valuewillbe shownon the corresponding digitaldisplay.

digits.Ifmore

thanthreedigitsare

entered,

valueis

onlythe last

digits entered will become the designated figures.

entered

three

Pattern

No.

Selects a pattern or patterns which have been stored in the floppy disk (001 to 999).

[Caution]

Ifa pattern No. not

X

number

Scale/Y

flashesonand

Scale

Takingapattern

stored

written

in the floppy disk is specified, error number "1" is given, and

offonthe

on the

display.

floppy

diskas

100%,

the

original

pattern

canbe

enlargedorreduced

the

specified

X-axisand/or Y-axis independently within a rangeof 0.1% to 400%. The origin or the scale reference point determined

original pattern.

[Caution]

1. Whenever a pattern

check

2.

With

length

cannot

stitches

3. To enlarge/reduce

when the

that

the

enlarged

the

scale

switch

exceeds

be enlarged if

12.7 mm. With

by a jump input).

program

has

the

hasbeen input is used as the reference point for enlargingor reducing the

been enlarged, turn OFF

pattern

setto"INCorDEC of

the

stays

the

number of

Should

within

scale

stitches

this

switch

happen,

pattern in increments of 0.1%,

the

sewing

stitch

length,"apattern

setto"INC

exceeds

error

-

10

-

sewing machine ON/OFFswitch,

areaofthe

feeding

frame.

cannotbeenlargedifthe

andbesure

or DEC of number of stitches," a pattern

the

computable

number

set

"2" will be indicated.

the Item 1 of Memory switch No. 13 to "2."

range

(within 400 mm or 4,000

stitch

in the

to

4.

Counter

Counts the number of garments sewn, and indicates when to replace the bobbin by means of an alarm. When

the quantity of the bobbin thread has been reduced to the preset level, the counter flashes on and off urging

you to replace the bobbin. Sewing is not possible while the counter is flashing on and off. Press the reset

switch after replacing the bobbin, and the counter will be reset to "000", allowing the machine to be restarted.

(The counter switch is turned OFF at the time of delivery.)

5. Set ready switch/READY (Sewing LED) Sets off the following series of operation when pressed after setting the pattern No., X/Y scale, counter and

scale switch (INC/DEC of stitch length or INC/DEC of number of stitches):

1) The specified pattern or patterns are read from the floppy disk.

2) Operation is performed based on the entered scale data. While the compulation is being executed, the

sewing LED (READY) flashes on and off.

3) Upon completionofthe computation, the feeding frame comes down, automatically moves via the origin

to thesewingstart

[Caution]

Remember

performed

only

that

point

(the2nd

the

above-mentioned

when

the

origin

power

if the 2nd originhasbeenset), and then goes up.

seriesofoperationtoset

switchisturned

ON.

the

machine

ready

for

sewing

4) The READY lamp is continually lit instead of flashing on and off, showing that the machine is ready to

start sewing. Note that you are not allowed to make any setting changes while the READY lamp is ON. To make a setting change in this case, press the set ready switch. This will cause the READY lamp to go

out, thus permitting a setting change.

[Caution]

Do

not

put

your

fingers

on

completionofcomputation,ifthe

been

used

until

the

this

time,

the

floppy

under

the

poweristurned

diskisnot

required.

feeding

frame

pattern

OFF

No.orX/Y

canbesewnbysimply

since

the

feeding

scaleisnot

frame

automaticaiiy

changed,

turningONthe

the

pattern

set

comes

ready

is

down

which switch.

has

At

6.

Forward/Backward

When the forward switch is pressed with the feeding frame down, the material is fed forward by one stitch.

When the backward switch is pressed with the feeding frame down, the material is fed backward by one stitch. If these switches are kept pressed, the material is fed slowly for the first stitch, after which it is

automatically fed quickly.

7. Return to origin

When this switch is pressed during a temporary stop, the feeding frame will automatically move to the

sewing start point or the 2nd origin, and the feeding frame will go up and stop.

8. Jog keys (Numeric key 2, 4, 6, 8: A mark)

These keys function as numeric keys while the READY lamp is OFF, and work as jog keys while the READY lamp is ON. If any of these keys is pressed with the feeding frame down at the sewing start, the

needle will move in the direction shown by the arrow on the pressed key. At this time, the movementofthe

needle is automatically stored in memory. Set the 2nd origin at the desired position within the material

feeding range.

9.

Reset

Resets the counter value when pressed after a temporary stop following a press of the set ready switch or completionof pattern sewing. If the reset switch is pressed while the counter is flashing on and off, the total

value

indicatedonthe

counter

willbereset.

-

11

-

10. Error No. display

ifVnyofthe

foliowing

errors

occurs,i.willbeindicrrtedbyan

"Error

Number,"

andnofurrher

operarion

wiU

Error

code

Pattern No. error and read error.

1

Enlargemoit

2

Needleuperror

3

Sewing

4

Temporarystop fedication

5

Memorycapacity indication

6

Machine lock or needle position error

7

Solenoid

8

Thread breakage indication

9

Micro floppy disk format error

0

Air

A

E

11,

Electronic

The

electronic

3-4.

Other

switches

1, Feeding frame switch

pressure

Sewing

bu22er

buzzer

error

area

error

connector

drop

machine

beeps

Description

error

(less

than4kgf/cm^

reverse

rotation

each

timeaswitchispressed.

error

2.

3.

Start

switdi

Temporary

Wiper switch

stop switch

When

the

feeding

frame

will

the feeding frame to go up.

When

the

start

down,

the

This

switchisusedtostop

during

operation.

stitching

cycle,

Subsequently,

and

off

and will then remain lit up.

This

switchisusedtoselect

actuated after thread trimming.

come

down.

switch

machine

error

the

frame

switch

Another

(left)ispressed

starts

sewing.

When

this

number

error

indicationonthe

(right)ispressed,

pressonthe

with

the

feed

and

sewing

switchispressed

"5"

willbeindicated.

display

whether

the

wiper

the

switch

the

feeding

mechanisms

during

will

is tobe

feeding

causes

frame

a

flash

on

-

12

-

3-5.

Checking

1.

Be

2. Be sure that the needle stays within the feeding frame.

before

sure that the line voltage is suitable for the machine table.

operation

3. Be sure that the needle entry point is set at the center of the intermediate presser.

4. Be sure that no micro floppy is in the disk driver.

[Caution]

If

the

power

be

erased.Sobe

the

disk

switchisturned

sure

except

when

writing

ON/OFF with a micro floppy

to load or

unload

dataonthe

the

disk.

disk

while

the

disk

power

loaded,

the

is ON. Also, be

data

storedinthe

sure

5. Check the direction of rotation of the sewing machine as follows:

Whenthe bobbin winder switch is turned

"ON"

uponcompletion of sewing preparation, the feeding frame

will come down. The sewing machinewill then run when the start switch is pressed. At this time, check

that the direction, correa it by

reconnecting it.

[Caution]

Be

be

6.

Check

pulley

turns

counterclockwiseasobserved

reversing

sure

to turn OFF the power switch before connecting or disconnecting

suretosecurely

the

oil

connect

level

the motorpowerplug

the

plug.

from

connection,

the

pulley

side. If the pulley turns in the

i.e.,

turn

the plug 180 degreesbefore

the

motor power plug. Also,

Lubricate the machine (there are two lubrication holes) until the oil level readies the red mark on the oil

gauge. Before starting the sewing machine which has just been installed or which has not been used for a

long periodof time,apply a few drops of lubricating oil to the crank

hole, and

one

drop to the shuttle race surface.

assembly

throughthe crank lubricating

disk

may

to write-protect

opposite

7.

Remove

the bed

fixing

boltbeforestarting

operation.

Installthebed

jBxing

boltat the time of

8. When the polyethylene oiler is completely filled with oil, remove the oiler so that it can drain.

9. Compatibility of floppy disks

For the

them.

The

AMS-A

floppy

disk

type

(2DD)

floppy

for the

disk (ID) and

AMS-215C

AMS-B

type

cannotbeused

floppy

with the

disk

(2DD),

AMS-A

data can only be read

type,

AMS-B

type,

-212C and -22QCmodels of sewing machines.

transportation.

from

AMS-210C,

-

13

-

3-6.

Operation

procedure

Follow the operation procedureflow chart given below:

Preparation

for sewing

c

Set

the

on

the

turnuNthe

power switch

Set

the

the panel?

Pattern

Y-scale

Counter

Load

Start

witches

s

ntrol

cc

switches

X-scale

the

No

YES

disk

box

3

Sewing machine ON/OFF switch — OFF

INC/DECof

stitches-•select

Bobbin

Needle threading switch-•OFF

Sewing machine motor

winder

the

stitch length or

eitherofthem.

switch-•OFF

starts

to run.

the

number of

Operation petnelindicator lamps light up.

YES

Turn OFF the power switch

Troubleshooting

Press

the

set

readv

switch

Data back-up?

N 0

Reads

the

data

Computes

the X

and

Y-scales

The feedingframe

comes

down

Immediately

the power switch

is turned

after^

ON?--*^

Tves

Feeds along the travel

limitsofthe

X/Y

axis.

YES

N 0

READY

lamp flashes on and offduring the

computation.

Error indication *A' {air pressure drop error)

Error indication No. "3* (needle up error)

(See P. 165 for the error indication)

Performedonce after the power switch is turned ON

-

14

-

Origin retrieve

Check

for

the

directionofrotation

correct

Move to the sewing

start point

I

Feeding frame goes up

1

READYlamplights up

I

1 switch to

bbin

Srttte

bo

DN

The feeding fiame

comes

down

Start

switch

ON/OFF

Intermediate presser

comes

down

Sewing machine

starts running

Start

switch

ONADFF

winder

Move to

the

2nd

Make

sure

any

there

needle

indication

Remove

Directionofrotation

Refertoerror

origin, if it

is nothing

thread.

correct?

"E". (P.

has

under

been

165)

the

set

needle.

Trial operations

Sewingmachine

Intermediatepresser

goes

Set switchtoOFF

up

bobbin

stop

winder

Feedingframe goes up

&t

sewing machine

ON/OFF

switchtoOFF

Set feeding frame

switchtoON

Feeding frame

comes

down

Machine

stop

with

the

needle

up.

-

15

-

Sewing operation

Turn ON start switch

Fceti

control

YES

Feedingframe

goes

up

Set sewing machine

ON/OFFswitchto ON

Sec a woriqiiece

Set feeding frame

switch to ON

Feedingframe

comes

down

ongin

YES

Feed

control

TurnONthe

start

switch

Intermediate pcesser

comes

down

Sewing machine

starts running

Positioning

Material held

securely?

-

16

-

Sewing

Thread

tension

balanced?

NO

.Needle thread broken?'

NO

Temporary

Thread

actuated

Sewing

Wper

Returns

sewing start point

Feeding

End?

YES

trimmer

machine

is actuated

to the

frame

stop?

NO

stops

goesup

YES

TurnON the

stopswitch

is

temporary

Returns to the 2nd origin, if it

been

set.

has

Onecycle

completed

' Displaysetting-

Set theset ready

switchtoON

YES

NO

<3^

-

17

Reset

the

Counter.

-

Operation

stopped

n^le

thread

duetoL ^

breakage.

Feed contro] stop

Thread

is

Sewing machine

stops

Wiper is actuated.

Intermediate presser

goes

Return to

actuated

up

trimmer

YES

Threading ttie machine

YES

ongin

NO

Feed

YES

control

lumUNthe

to origin switch

Movetothe

sewing stait

Feedii^ frame

goes

up

return

pdnt

Move to

been

the

2nd

set

origin, if it

has

-

18

-

Teoipotaiy stop opeiation

Stop feed control

N O

During sewing?

Sewing machines

stops

Intermediate prcsscr

goes

up

Re-start?

Thread trimming?

"TurnONthe

threading switch

Intermediate presser

comes

down

Turn

I '

OFF

threading

t

switch

Sewingmachineruns.

NO

YES

i:?

YES

needle

the

needle

Eliminate

the

causeofthe

temporary

stop.

The

thread

is

trimmer

actuated

Sewing machine

stops

tViper is actuated

Intermediate presser

goes

up

-

19

-

.

3-7.

1.

Precautions

Before

sewinganew

flae

sewing

speed

during

operation

patternora

with

respectto.be

accordingtothe

newly

enlarged

feeding

ffante.

typ

^

tt<>mbesuretocarry

pattern,besure

sewina

speed

out

trial

(s.p.m.)

sewingtocheck

th

Whenanerror

5.

Be

suretoturn

indicationisgiven,besure

riTTc

Ks.fnrp

the

power

OFF

, •

ooenins

before

openmg

-.rvhv1

to

testerorelse

r^nt^:Srr;ri,bedan,ag«..

completionofthe

9.

Avoid

point

1

computanon.

pulling

the

workpiece

shouldbedislocated,

press

f

the

Set

Reaay

identify

the

control

needle

before

the

cause

the

depressing

box

tester

and

take

prevent

cover.

voltage

^

corrective

dust

^

maybeappli

the

start

action.

from

getting

into

the

(^\fexv

pe

appliedtosen.iconduc.or

control

weCiC*

.,0nbobbin.

swiiui

the

corr^t

„XorY

sewing

needle

start

point,

entry

-

20

-

4.

DESCRIPTION

4-1.

Sewing

machine

OF

EACH

MAIN

COMPONENT

Fig. 4-1

O Synchronizer O

X-axis stepping motor O Y-axis stepping motor 0

O X-axis

0 0

sensor

Y-axis

sensor 0

Work

damp

foot

cylinder

-

Intermediate

Thread

Wiper

Thread

Temporary

Wiper

0

21

-

presser

trimmer

solenoid

breakage

stop

switch

liftingcylinder

solenoid

detector

switch

O

Synchronizer Mainly consists of a generator stator and position detecting solenoid incorporated into the sewing machine

pulley. It detects whether the needle is in its upper or lower position, and also detects the sewing speed, after

which it sends input signals to the control box based on the detection results.

X-axis

Feeds material in the directionofthe X-axis according to the pattern data given by the control box.

O Y-axis

Feeds material in the direction of the Y-axis according to the pattern data given by the control box.

O

X-axis

0

Y-axis

0

O

0

Thread

Actuates the clutch mechanism for the thread trimmer according to the command from the synchronizer. It

stepping

sensor

Mainly

consists of an

the

origin

in the

inputsignals to the control box based on the detection results.

sensor

Mainly

consists

origin

in the

signalsto the controlbox basedon the detection results.

Work

clamp

By

turning

comes down to securely hold the material.

Intermediate

During

sewing,

intermediatepresser causing it to go up and come down.

trimmer

thenactuates

X-axis

of a

Y-axis

foot

ON/OFF

presser

theair

solenoid

causing

motor

X-axis

within

Y-axis

within

cylinder

the

feeding

cylinder

the

slit disk,an

slit disk,a

the

lifting

thread

the

sewing

frame

cylinder

controls

trimmer

X-axis

areaand the

Y-axis

area

and

switch,

the

vertical

cam

originsensorand an

boundary

origin

sensoranda

the

boundary

the

and

feeding

thread

stroke

frame

path

trimmer

of the

Y-axis

of the

activated

of the

mechanism

X-axis

limited

travel

limited

sewing

by theair

intermediate

travellimitsensor. It

sewing

area.Itsends

limit

sensor.Itdetects

area.Itsends

cylinder

presser,

and

to join together.

detects

the

input

goesupand

actuates

the

0 Wiper

<0 Thread

0

solenoid

Actuates the wiper after the threadhas been

breakage

Detects the connection between the thread take-up spring and the thread breakage detector disk each time a

stitch is formed, and sends the result in terms of an input signal to the control box. If needle thread breakage is detected, the sewing machine will slow down, trim the thread, and stop.

Temporary

Thisswitchis

turned

ON, the

Wiper

switch

Usedto specify

stop

used

machine

whether

detector

switch

to stop the

feed

and

will stop without performing thread trimming.

the wiper is to be

trimmed.

operation

actuated

of the

after

sewing

thread

machine

trimming.

during

sewing.

If this

switch

is

-

22

-

4-2.

Control

box

"\

Fig. 4-2

O CPU circuit board

l/F

circuit

board

O PMDC circuit board

o Power circuit board

O Switching regulator

0 Transformer

O Fuse box

O

0

-

23

-

Cooling

Floppy

fan

disk

driver

receiving

.

including ICs.

•

Floppy

•

.

I/F

The

•

.

)

PMDC

Activates

circuit

^ •

.

the

reset

T^c

Microprocessor

Input

circuits

Switch

circuit

following

Magnet

Display

Solenoid

Sewing

circuit

board.Itincludes;

Current

Stepping

signal

disk

drive

for

signal

output

board

circuits

actuating

valve

machine

board

the

stepping

limiter

motor

conirol

control

the

circuit

actuating

circuit

driving

from

arcuit

circuit

switches

circuit

are

mounted.

circuit

motor

circuit

the

I/F

circuit.

U

arcuit

receiving

after

receivmg

lender

the

sewing

the

control

solenoid

machineoroperation

valve

signal

from

after

the

CPU

panel

circuit

board

through

board.

0

:

C^4v'S^^"circuit

.

+5V,

+12V,

®

0

Transformer

o

^Str-daTlitle'toprotLtthetmoUngfan.

Cooling

Usedtocool

the

CPU

the

-12V

»"ut

outputs

wiring

from

received

for

the

circuits

the

secondary

from

PMDC

50V

lag

fusetoprotea

fan „ ^ j

the

drcuit

elements,

board

takingmfresh

the

solenoids,

the

secondary

circuit

board

transformer

AC

for

the

a

^ron,

outside

air

transformer

and

outputs

stepping

lOA

motor

fusetoprotect

the

machine.

to

provide

.5V.

.12V

actuator,

the

power

supply,

and

-HV.

lOOV

AC

for

the

stepping

motor

and

switching

and

coo

g

-

24

-

4-3.

Operation

panel

Fig. 4-3

O

Operation

On this circuitboard are

parts which send switch data to the control box.

0 Operation panel relay cable

This

isa

circuit

50-core

board

cable

mounted

which

.connects

O Operation

O Operation panel relay cable

displayparts which receive commands from the controlbox and switch

the

operation

circuit

board

with

the

circuit

control

board

box

for

transferofsignals.

-

25

-

4-4.

Motor

A 400W, 4-pole electronic-slop motor is used for the sewing machine motor. The clutch brake disk components are

compatible with a general lockstitch sewing machine motor.

1. Structure of the motor and how the motor speed is changed

The following diagram shows the structure of the electronic-stop motor. As long as the power of the machine stays ON, the motor (rotor, flywheel, and clutch disk) runs constantly. The clutch ring is connected to the output shaft through the splines, so it rotates together with the output shaft, and can slide crosswise.

When the clutch coil is energized, lines of magnetic force are produced as shown by the solid line arrow, and the

clutch ring is pressed against the clutch disk, thereby transmitting the motor rotation to the output shaft. When

the brake coil is energized, lines of magnetic force are produced as shown by the broken line arrow, and the

brake ring is pressed against the brake disk (constructed integral with the pulley side bracket, and does not turn), thus stopping the rotation of the output shaft. At medium speed, the clutch coil and the brake coil are energized for a short period of time alternately for

rotation.

,—

^ ^

Brake

yoke

Pulley

side

bracket

End

cover

Clutch

Stator

\

„

Rotor

Intemal

Housing

bracket

yoke

X ^

Capacitor

machine)

Centrifugal fan

Fig. 4-4 Structure of Electronic-stop Motor

Clutch

/WWW/,

Clutch

disk

Brake

Clutch

Pulley cover

disk

shaft

-

26

-

5.

ADJUSTMENTS

5-1.

Mechanical

parts

STANDARD

(1)

Checking

the

directionofrotationofthe

After confirming that the READY indicator

lamp has lit up, set the bobbin winder switch to

"ON", and press the start switch. At this time,

the handwheel should turn counterclockwise (in

the directionofthe arrow) as observed from the pulley side.

reverse

and the

[Caution]

Be

suretocheck

the

handwheel

installedorthe machine Do

not

rotation confirmed

If

direction,

madiine

has

been

start

sewing

of

the

as

correct.

the handwheel turns in the

error

willbeindicated,

wiU stop.

the

after

the

powers

completed.

unless

handwheel

direction

machine

supply

the

has

of

wiringofthe

direction

been

rotation

has

of

been

of

ADJUSTMENTS

handwheel

Fig. 5-1-1

ft&ADY

1 i

PdRernNa

XScato

YScato

Coiirter

Number

lln^

SMo»tm*iseM0

j 1

1

(2)

Heightofthe

needle

bar

Bringthe needlebar to the lowest dead point in its stroke. Adjust so that the

bar lower bushing is aligned with the upper marker line (for a DPx5 or

Marker

lines

the

DPx5

needle-

Marker

D

the

lines

DPx17

Fig. 5-2-1

for

needle

for

bottom

DPxl7

Fig. 5-2-2

end of the needle

needle).

Needle

lower

Upper marker line

V

Marker

the

(with

^of

bar

bushing

lines

for

DPx17

needle

count

#22orhigher)

[Caution]

The

marker

lines

for

machineofwhich

DPx17 (#22orhigher

specification

code

G.

count)

are

only

engravedonthe

-

27

-

needle

barofthe

sewing

oIfthe

motor

now

handwheel

power

turnsinthe

plug,

and

n

TO

ADJUST

reverse

direction,

reconnectitreversed.

0

Fig. 5-1-2

disconnect

the

RESULTS

o If

the

handwheel

direction,

the

error

switch

switchcan be operated.

OF IMPROPER

adjustment

the

machine

E.

In

canbeturned

turnsinthe

will

this

case,

OFF,

opposite

stop

showing

the

power

butnoother

1)

TurnONthe

up),

and

reaches

2^

Remove

3^

Loosen

^S

4)

After

5)

Turn

returntoits

6)

Attach

needle

threading

turn

the

handwheelbyhand

its

lowest

dead

rubber

plug0from

needle

bar

connection

o?

the

needlebyraisingorlowering

making

OFF

the

upper

rubber

adjustment,

needle

threading

resting

plug0to

switch

point.

the

setscrew0,and

securely

position.)

the

face

(the

until

face

p^te.

switch.

(The

plate.

the

needle

the

needle

bar

adjust

me

bar

O•

will

ill

o

Stitch

skippingorthread

occur.

breakage

may

-

28

-

STANDARD

(3)

Stop

positionofthe

When the main shaft stops, marker dot O on the

machine arm should be midway between marker dot

No. 1 O and marker dot No. 2 on the handwheel.

For the sewing

G,

adjustsothat

machine

arm rests between upper blue marker dot 0

main

shaft

of whichspecification code is

marker

dot O

engraved

and lower markerdot 0 engraved on the handwheel

when the sewing machinestops.

[Caution]

1. Be

suretodo

readytostart

2. This

adjustmentisunnecessary

operation.Ifthe

been adjusted, be

stop

position of

setonthe

this

sewing.

machine.

adjustment

stop

positionofthe

sure

the

main shaft with the workpiece

while

the

for normal

main

to check the newly adjusted

ADJUSTMENTS

on the

machine

shaft

is

has

Fig. 5-3-1

Direction

of

rotation

O

(4) Height of

1)

Make

and

up before setting the workpieceon the machine.

the

sure that the

the

sewing

Intermediate

sewing

pattern

indication

LED

presser

data has been

(READY

lamp)

2) Makesure that theneedleentry point is in the center

of intermediate presser

O-

3) Set Needle threading switch 0 in the control box to

the

4^

side.

The

feeding

presser

will

then

come

4) Turn the handwheel by hand until the needle bar

reaches that

a 0.5

the

lowest

mm

dead

(standard

frame

down.

point

of its

adjustment

and

intermediate

stroke. value)

Adjust

clearance

obtained between the top end of the intermediate

presser and the workpiece.

5)

After

making

the

adjustment,

set

Needle

threading

switch 0 to the side. The machinewill then

run

untilitreaches

maximum

the

intermediate

thicknessofthe

the

presser

needle-up

material

is 5

mm.)

stop

tobe

position.

sewn

read

has

(The

using

so

lit

is

Workpiece

Throat

Fig. 5-4-1

plate

-

29

-

HOW

TO

ADJUST

RESULTS

ADJUSTMENT

OF

IMPROPER

Loosen

If the

solenoid

main

shaft

mounting

stops

prematurely

base

setscrew

before

O.

marker

dotNo.l O

or 0 on the handwheel reaches marker dot O on the machine arm, move setscrew O in the direction of arrow (D and then

tighten the setscrew in that position. On the other hand, if the

main

shaftstops after

marker dotO,move setscrew O in the direction of arrow and then tighten the setscrew in that position.

Repeat

3)

4)

step 1), 2)

located between marker dot No. 1 0 or 0 and marker dot No.

20

or 0 on the handwheel when the main shaft stops.

Securely

tighten

Directionofrotation

marker

until

solenoid

dot No. 2 0 or 0

marker

dot O on

mounting

the

machine

base

setsaew

Directionofrotation

passes

arm

O.

beyond

0,

is

If the main shaft stops before marker dot

O reaches marker dot No. 1 0 or 0

on

the

handwheel:

Thread trimming operation cannot be

completed (the main shaft stops before

the moving knife meets the counter

knife), leading to thread trimming

failure.

If the main shaft stops after marker dot

No. 2 0 or 0 passes

dot O on the machine arm:

A clearanceof1 mm or greater

beyond

marker

shown

in the figure cannot be obtained, and the wiper and intermediate presser will come

in contact with the needle, which may

cause

the

needletobendorbreak.

The markerdot O on the

machine arm

marker

the

hcuidwheel.

dot

stopsatthe

No.2side

setscrew0,and

adjust

on

the

height

o

Loosen

The

msu'ker

machine

metrker

dot

the

handwheel.

intermediate

dot O on the

arm

stopsatthe

No.1side

on

presser

of the intermediate presser following the procedurestated on the

left. Uponcompletion of the adjustment,

tighten

the setsaew.

Be sure to adjust the height of the intermediate presser

according to the thickness of the material or the type

of thread to be used so that the material does not flap

during

sewing.

so that there is no clearance (0 mm),

o Afteradjusting the

check

the

position

ADJUSTMENTS (9).")

When

sewing

height

of the

of thewiper

floppy

material,

intermediate

adjust

presser,

be sure to

(Referto"STANDARD

1mmor

more

i

1mmormore

oIfthe clearance is too great:

Stitch skipping may occur,

oIfthe

clearanceistoo

Loose stitches may result.

small:

-

30

-

(5)

Feed

bracket

Adjust

the

clearance

is in its upper restingposition.

between

STANDARD

the

feeding

(Maximum

ADJUSTMENTS

frame

and

clearance30 mm.)

0

Fig. 5-5-1

the

surfaceofthe

throat

plate

when

the

feeding

frame

(6)

Shuttle

Adjust

centerofgroove

Adjust

with comer point © ,

[Caution]

Ifsection © is damaged, thread breakage or thread splitting might occur, or

become dirty. Besure to buffboth faces of section

with

race

the

care.

spring

lateral

position

width

longitudinal

of the

@.

position

shuttle

of the

race

shuttle

Fig. 5-6-1

springso

race

springsothat

that

the

center

the

©.

Be sure to buffthe backside ofthe spring

of the

rear

endofthe

needleisaligned

the

thread might

with

the

-

31

-

n

Loosen

sctcw0whichislocatedinthe

^ b

A

will

increase

din

2)

After

tighten

arrowBwill

the

adjustmentofthe

saew

now

TO ADJUST

®kcto.Shifting

the

heightoffeeding

decrease

lever®in

frame

.he

heigh,of.he

heightofthe

0.

right-handorleft-hand

the

dir^.on

O .

am>w|

^

feeding

frame,

securely

results

adjustment

o If

the

liftofthe

small;

The

material

o If

the

liftofthe

great:

The

correct

willbedifficult

material.

of

improper

feeding

cannotbeset

positioningofthe

feeding

when

frameistoo

easily,

firameistoo

you

trytoset

matenai

the|

o

Remove

adjus.

Ster"

completed.

ttie

feeding

.he

posWonofttie

positionofthe

the

standard

frame,

feed

pla.e

shuffte

race

shuttle

race

adjustmentofthe

0

Fig. 5-6-2

and

spring

usmg

^'"9f

shuttle

screw

race

has

U•

been

o

Lateralorlongitudinal

cause

the

needle

shuttle.

o If

the

shuttle

race

deeply,

the

moving

the needle thread,

o If

the

shuttle

not

race

hook

the

excessivelytothe

might

dislocation

threadtobite

springislocated

knife

springislocated

left,

bobbin

might

the

moving

thread.

into

will

not

the

too

hookj

knife

-

32

-

(7)

Timing

between

the

needle

STANDARD

and

the

ADJUSTMENTS

shuttle

1) Needle bar timing

The bottom endofthe needle bar lower bushing is aligned with the lower marker line (for a DPx5 or

DPxl7

needle) when the needle goes up. (Fig. 5-7-1)

2) Shuttle timing

Under the condition described in step 1) above, the centerofthe needle meets the blade pointofthe

shuttle. (Fig. 5-7-2)

3) Clearance between the needle and the shuttle driver Under the condition described in step 2) above, there will be no clearance between the needle and the

shuttle driver when the end face of the shuttle driver shaft is aligned with side © of the driver.

(Fig. 5-7-2, Fig. 5-7-3)

4) Clearance between the needle and the blade point of the shuttle

Under

the

condition

described

in step 2)

above,a0.05

to 0.1

mm

cle<irance

the needle and blade point of the shuttle. (Fig. 5-7-4)

5) Clearance between the needle and the shuttle race

The clearance between the side face of the needle and the shuttle race is a 7.5±0.2 mm (when a #14

DPx5 or

DPxl7

needle is used). (Fig. 5-7-5)

6) Clearance between the shuttle and shuttle driver

The clearance between the shuttle and the shuttle driver is 0.5 to 0.7 mm. (Fig. 5-7-2)

obtained

between

Marker

a

DPxS

Marker

a

DPx17

0.05to0.1

1) Needle bar timing

Needle

bar

lower bushing

lines

for

needle

lines

for

needle

Fig. 5-7-1

3)

4)

mm-«

Clearance

the

JL/®

0

mm

blade

between

point of

the

shuttle

needle

\

needle

When a G type

is

used.

DPx17 (with

needle

count

if22 or higher)

Lower

Needle

and

the

shuttle

and

of

marker

bar

driver

Fig. 5-7-3

lines

Shuttle

2) Shuttle timing

Shuttle

driver

shaft

Shuttednver

d

Fig. 5-7-2

5)

Clearance

and

#14ofDPxSor—»

DPx17

needle

between

the

shuttle

the

race

7.5st0.2mm

needle

S

O 0

Fig. 5-7-4

-

33

-

Shuttle

Fig. 5-7-5

now

TO

ADJUST

RESULTS

ADJUSTMENT

OF

IMPROPER

1)

Referto"STANDARD ADJUSTMENTS

(7)-!),"

and

that the lower marker line (for a DPx5 or DPxlT needle)is

aligned

2)

and

ADJUSTMENTS (7)-2)."

[Caution]

3) adjusting

[Caution]

Loosen

the

with the

driver

longitudinal

bottom

faceof the

setscrewO,and

direction

needle

adjust

referringto"STANDARD

When adjusting the shuttle timing, be

in

the

directionofthe

Loosen

t.he

needle

if

the

needle

lower

shaft

and

bushing

® to

the

needs

arrowasshown

setscrew@.and

adjustsothat

front

endofthe

to be replaced according to a change in

there

shuttle

bar

lower

bushing.

the

directionofrotation

sure

to turn the shuttle

in Fig. 5-7-2.

turn

lower

bushing

is no

clearance

driver.

the type of needle, be sure to adjust the clearance between

the

needle

and

the

shuttle

be bent or damaged needles, be

timing after a needle

4)

Loosen

between adjusting shaft

5)

between

shuttle

the needleand the blade pointof the shuttleby

Loosen

shuttle

the

Use

great

care

andthe blade

When

sewing

r^tcc

setscrewO,and

0.

race

setscrewO,and

needle

and

when

point

of the

withathin

driver.

has

been replaced.

the

shuttle

adjusting

shuttle

Since

sure

to check the shuttle

adjust

race.

the

clearance

described

typeofthread

there

are

the

clearance

the

clearance

between

instep 4).

such

bound

the

as#50

or a greater count, be sure to adjust the clearance so

that it is *7.0 to 7.3 mm after the standard adjustment

of the

position

completed.

[Caution]

of the

shuttle

racespring has

been

Strike portion (i) to adjust the clearance betweenthe shuttle

and

the

shuttle

After

making

positioned

driverto0.5to0.7mmas

the

adjustment,

equidistantly

besurethat

(clearance@and0should

shown

portion

in Fig. 5-7-2.

@ is

equal) and vertically with respect to the shuttle.

adjust

between

turning

needle

be

1), 2) Forsewing floppy material, adjust

so

the shuttle timing so that it is slightly

slower than the standard shuttle timing.

On the other hand, for sewing heavy

weight material, adjust the shuttle timing

so that it is slightly faster than the standard timing (to prevent stitch

skipping.)

3) If

the

clearanceisgreater

the needlewill be bent by the blade I

point of the shuttle, resulting in scrtuchcs

on the blade point of the shuttle and the

needle.

has

to

driver, stitch skipping may occur.

4) If the clearance

On

excessive

the

contact

other

exceeds

hand,ifthe

with

range (0.05 to 0.1 mm), stitch skipping may occur. If the clearance is

inadequate, the needle will bit the blade

point of the shuttle, causing scratches on

the needle and the blade pointofthe

shuttle.

thread to bread or split finely.

The

scratches may cause the

5) If theclearance is less than7.5 mm,

poorneedle threadspreading may

oftenleading to the needle thread biting

into

the

shuttle.

When sewing with a thinner

type of thread, such as #50 or

a greater count, adjust the

timing between the needle and

the

shuttle

racesothat

to 7.3 mm (the clearance marked with an asterisk *).

Otherwise, the thread easily

bite

into

the

shuttle.

If

the

driver

clearance

and

the

between

shuttle

exceeds

specified range (0.5 to 0.7 mm), the shuttle will produce loud noises. On the

other hand, if the clearance is

inadequate, the needlethreadwill fail to

smoothly leave the shuttle resulting in an

inadequately tensedstitch formation,

when sewing with a thick thread.

than0mm,

needle

the

shuttle

thespecified

result,

it is

7.0

the

shuttle

the

{

Fig. 5-7-6

-

34

-

STANDARD

ADJUSTMENTS

(8) Heightofthe

The clearance A between the

intermediate

presser

bottom

adjusting

of the intermediate presseradjusting screw and the top of the

intermediate presser adjusting screw nut is 10±1 mm.

A:

Intermediate adjusting

Intermediate

adjusting

screw

presser

nut

Fig. 5-8-1

(9)

Positionofthe

wiper

1) With the sewing machine stopped with its needle up, confirm that the sewing indication LED (READY lamp) light up, and set the Needle Threading switch to the side. The clearance

between the wiper and the needle and between the

wiper and the intermediate presser should be 1 mm

or greater, when wiper O passes the tip of the

needle.

2) A 40 mm distance should be obtained between the center of the needle and the end face of the wiper

O

when

[Caution]

Normally,

of

which

material

fall

to

the

Item 2ofFunction

switchto"1."

the

thread

wiper O

the

thickness

pass

wiper

under

returns

to its

canbeused

Is3mmorless.Ifthe

exceeds3mm,

the

needle.Inthis

No.45of

This

enables

the

Intermediate

home

position.

withamaterial

the

wiper

case,

the

memory

wipertospread

presser.

set

10il

will

screw

mm

1mmormore

m--"

1mmormore

40mm

35

-

Fig. 5-9-1

o

Loosen

make

o

the

adjusting

the

adjustment.

Adjustable

Sige^©ofthe

is0to11for

isSor0to29mm

specification

HOW TO ADJUST

screw

After

the

sewing

machineofwhich

for

the

isHorG.

nut,

and

turn

the

making

intermediate

the

adjustment,

presser

adjusting

sewing

machineofwhich

secur

ly

screw

specification

sewing

results

o If

the

adjusting

tightened;

The

intermediate

up

upon

o If

the

adjusting

tightened:

A

functional

presser

[Caution] ^

This

adjustmentismadetoobtain

proper

presser.

directly

sewing

make

to

prevent

assembiy

of

adjustment

completionofa

mechanism

pressureofthe

relatedtothe

ability,

thisadjustment too

improper

screwisexcessively

presser

will

sewing

screwisinadequately

failureofthe

may

result.

intermediate

This

adjustmentisnot

machine's

itis

advisable

the

intermediate

from

becoming

failtogo

cycle,

intermediate

tnei

not

often

damaged.

to

so as

presser

i

1)

Loosen

procedure

2)

^

^nfag

wiper

arm

setsaew@.and

givenonthe

wiper

O is

left.

setscrew®so

appropriate.

make

the

After

Wipertothe

that

adjustment

making

the

adjustment,

centerofthe

the

angleofattachment

ntedle

[o

The

top

endofthe

contact

with

intermediate

thread

wiping.

hy

If

the

of

I brake or become bent,

o If

machineisoperated

keptincontact

intermediate

the

tipofthe

the

needle

thread,

andastitdiing

wiper

may

come

the

needle

or the

presser

preventing

with

the

presser,

presser,orthe

the

needleisdamaged

proper

with

the

needleorthe

needle,

wiper

needleisburredorthe

may

stick

into

the

needle

failure

may

in

,

wiper

might

(the

like),

result.

-

36

-

(10)

Lengthofthread

STANDARD

remainingonthe

ADJUSTMENTS

needle

The length of thread remaining on the needle after thread trimming is 35 to 40 mm measured from the

needle

eye.

For synthetic thread, the length of thread remaining on the needle should be increased.

Thread

tension

controller

Long

(D

Short

No.

1

©

Fig.

5-10-1

(11)

Thread

take-up

spring

Stroke: Pull the needle thread in direction©. Moving distance of the needle thread should be 12 to

15 mm from the start to the end position. (Fig. 5-11-2)

Tension:

Adjust

the

tension

according

to the

spring by checking the result of the

machine.)

Thread

tcd<e-up

spring

Smal

stitch

formation.

adjustment

When making a knot

(Adjust

the

tension

of the

by sewing the workpiece actually set on the

thread

take-up

L-shaped

thread

guide

Fig. 5-11-1

-

37

-

Fig. 5-11-2

now

TO

ADJUST

RESULTS

ADJUSTMENT

OF

IMPROPER

Adjust tension controller No. 1.

o Turningit in direction © decreasethe length of thread

remaining on the needle,

o Turningit in direction © increases the

lengthofthread

remaining on the needle.

[Caution]

If

the

tension

trimming,

short.

The

thread

short,ifthe

Referto"RESULTSOFIMPROPER

release

the

thread

Referto"STANDARD ADJUSTMENTS (19)."

remainingonthe

thread

timingisdelayedatthe

remainingonthe

needle

may

take-up

spring

does

ADJUSTMENT

needle

alsobecut

not

work

timeofthread

willbecut

normally.

too

(11)."

oIfthe thread remaining on the needle is

too

short:

The thread may slip off the needle at the

sewing start,

oIfthe thread remaining on the needle is

too long:

The thread may appear on the right side

too

of

the material, or make the wrong side

of

the material look messy. The thread

may also bite into the shuttle at the

sewing start.

1) Adjusting the stroke

Loosen No. 2

setsaew

0,

O >insert a screwdriver into tension controller

and turn it to adjust the stroke.

2) Adjusting the tension

Be sure that setscrew O has been securely tightened. Insert a

screwdriver into tension controller No.

20

, and turn it to adjust

the tension. (Fig. 5-11-1)

[Caution]

When sewing with a thinner thread

count, adjust the stroke of

is8to10mm.

the

such

as #50 or a greater

thread take-up spring so that it

If

the stroke exceeds the specified range:

The thread remaining on the needle wiU

be too short, resulting in the thread

slipping off the needle at the sewing

start.

If the stroke is inadequate: Needle breakage may occur at the

sewing start when sewing with a thin

thread.

[Caution]

If

the

thread

take-up

contact

guide,

not thread

with

the

thread

returntothe

trimming,

remainingonthe

In

this

case,

adjust

L-shaped

thread in

take-up

contact

thread

with

guideatsection

care

nottodamage

(Fig. 5-11-2)

spring

L-shaped

take-up

start

position

and

the

needle

the

positionofthe

guidesothat

spring

does

the

L-shaped

B. At

this

the

thread

comes

thread

spring

thread

will be

not

thread

time,

in

will

before

short.

the

come

take

path.

-

38

-

STANDARD

ADJUSTMENTS

(12)

1)

Thread

The

breakage

detector

thread breakage detecting disk should be

always in contact with the thread take-up spring

in

the

absence

of

thread

on

the

machine

(The slack of the thread take-up spring should be about 0.5 mm.) The thread breakage detecting disk should not

2)

be in contact with any other metallic parts

except the thread take-up spring.

[Caution]

Whenever

spring

breakage

(13) Moving knife

1)

When

portion

the

strokeofthe

has

been

detecting

the sewing

changed,

and

machine

disk

counter

thread

the

thread

mustbereadjusted.

knife

stopswith its

of the moving knife and the end of the needleeyelet is 4.5 mm for the S or H type machine, or 6

mm for the G type machine.

2) Theclearance

provided

between

the

type machine, or 1.5 mm for the G type machine.

head.

take-up

needle

counter

Thread

take-up

spring

Thread

breakage

detecting disk

Tension

up, the clearance

controller

provided

Kg.

No.

5-12-1

between

2

the loopspreading

knifeand the needle holeguide is 0.8 mm for the S or H

Excluding G

type

Fig. 5-13-1

G

type

%

-

39

-

now

TO

ADJUST

results

adjustment

of

improper

at

left.

1) When

S

2)

'intme

3)

guideOand

After

adjustment,

ofmov®hnifeOand

adjustnient.

the

counter

Section

tobe

leferto p39

deleting

tighten

manuaUy

dis.

«.jus«nentasdescribed

the

setscrew.

actuate

the

between

knife

d •

adjusted

(13))

1)

the

edge

thread

o£

needie

trininter

the

to

needle

h^^^

2)

11Ifthe

thread

notinproper

take-up

2)Ifthe

o If

spring,

would

failtostop

|)ro<iks

thread

falselyincontact

other

than

sewing

even

when

the

counter

is

smaUer

The

the

blade

when

machine

clearance

threads

they

knife.Asa

bobbin

short.

o If

the

counter is

larger

The

longer

fabric

trimmer

o If

the

counter

is

larger

The

result

failures.

o If

the

counter

is

smaller

The

endofthe

proper

hit

The

breakage

contact

the

even

breakage

withametallic

the

thread

would

it is

started.

provided

knife

and

than

the

maybefalsely

pointofthe

are

pulledbythe

result,

threads

wouldbetrimmed

clearance

knife

and

than

the

thread

after

thread

may

failtotrim

clearance

knife

and

than

the

unreliable

with

consequent

clearance

knife

and

than

thread

trimming

needle

thread

moving

stitch

the

moving

bobbin

runs

detecting

with

sewing

when

detecting

take-up

stop

the

needle

specified

disk

the

thread

machine

the

thread

disk

part

spnng,

immediately

between

hole

value:

tnmm^

counter

both

provided

the

specified

maybeleftonthe

trimming,

provided

the

specified

thread

provided

the

specified

maybecaughto"®

knife

formation.

knife

idling

knife

moving

the

needle

between

needle

hole

value:

the

threads,

between

needle

hole

value:

spreader

thread

between

needle

failures

preventing

Tht

and

may

excessively.

trimming

hole

value:

may

is

the

guide

by

and

too

. ^

the

guide

thread

the

guide

may

the

guide

result.

the

needle

may

brake.

-

40

-

STANDARD

(14)

Heightofthe

o

The threadtrimmerwhich consistsof a movingknife and counter knife should successfully cut a pair of

moving

knife

and

the

ADJUSTMENTS

counter

knife

#80 thread and another pair of #5 thread when the throat plate is removedand the thread rimming lever

is manually actuated. (Fig. 5-13-1) (S, H type)

The

thread

trimmer

which

consists

of a

moving

knifeand

counter

knife

should

successfully cut a pair of

#2 thread and another pair of #30 thread. (G type)

Hinge

screw

Moving knife

Washer

Throat plate

Fig. 5-14-1

o Parallelism of the counter knifeblade point

The

counter

knife

blade

shouldbeparalleltothe

threads (needle and bobbin threads) evenly.

'TTTTZ^

Fig. 5-14-3

S, H type:

0.3to0.4mm

G type:

0.5to0.6mm

throat

Counter knife Moving knife

Needle hole guide

Fig. 5-14-2

plate

mounting

The counterknifebladeis

plate mounting surface. The difference in level

between © and @ is within 5/100.

surfaceinordertocutapair

paraUel

to the

throat

of

-

41

-

now

TO

ADJUST

RESULTS

ADJUSTMENT

OF

IMPROPER

1) After the trial thread trimming.

A. If the outer thread as observed from the moving knife pivot

cannot be trimmed, replace the washer with a thicker one.

B. If the inner thread as observed from the moving knife pivot

cannot be trimmed, replace the washer with a thinner one.

Part

No.

B242328000A B242328000B B242328000C B242328000D

Inner

Outer

Nameofpart

Moving knife washer Moving knife washer Moving knife washer

Moving knife washer

Thickness

0.4

mm

0.5

mm

0.6

mm

0.7

mm

Moving knife

Moving knife pivot

Fig. 5-14-4

o Thread trimming failures may occur.

If the above adjustment fails to correa the thread trimming

2)

failure.

A. If the height of the needle hole guide with respectto the counter

knife blade is not within 0.3 to 0.4 for S or H type model of

sewing

machineor0.5to0.6mmforGtype

(Fig.

5-14-2)

height

of the

out

usingascrewdriver

needle

holeguidewith

or the like to

respect

one,

to the

pry

portion

adjust

counter

O

the

knife

blade to the correct height. (At this time, make sure that the

bladepointis in

If the angle of the counterknife bladeillustrated belowis larger

B

parallel

to the

throat

plate

mounting

surface.)

than 90 degrees, cut the blade.

JCQJCSL

Tobeacute

angle

Fig. 5-14-5

3) If

the

corrective

measures

described

in1)

and2)above

fails

to

correctthe trouble, replacethe movingknife or the counter

knife.

o If the height of the needle hole guide

with respect to the counter knife blade exceeds 0.4 mm(S, H type)0.6 mm (G type), both the needle thread and the

bobbin

thread

willbecut

Esp)ecially

thread, the needle thread and bobbin

when sewing with a thin

too

short.

thread will be frequently cut too short.

-

42

-

STANDARD

ADJUSTMENTS

Thread

(15)

When

1)

stopper

The

2)

respect

Install

3)

the

(Fig.

Put

4)

thread trimmer connecting rod. (Fig. 5-15-4)

Adjust

5)

At

6)

completionofthe

when

retumstothe

trimming

part

and

the

marker

lineonthe

to the

thread

bed

with

5-15-3)

the

thread

the

clearance

the

timeofthread

the

cam

Thread

cam

the

cam

followerispushed

cam

follower,

thread

directionofrotation.

trimming

small

trimming

link

spring

screw.Atthis

link

springinbetween

provided

trimming,

thread

trimming

shaft

goes

beyond

end

faceofthe

trimming

shaft

arm.

the

trimming

between

clearance

(Fig.

pegsothat

time,

the

thread

and

the

highest

downtomaximize

shouldbe0.3

cam

shouldbealigned

5-15-6)

hole

for

the

small

screw

the

spring

follower

trimming

thread

releasing,

dead

pointofthe

Left

end

face

Cam

follower

mm.

the

head

peg

stopper

cam

shaft

the

Follower

the

(Fig.

with

spring

pegisvertically

should

and

the

and

the

movesinthe

thread

trimmer

thread

stopper

clearance

5-15-2)

the

marker

enter

thebedas

washerofthe

cam

followerto0.2

directionofthe

clutch

take-up,

between

dotonthe

the

follower

main

positioned

deep

as 0 to 0.5

and

...

hinge

screwinthe

mm.

(Fig.

arrow.

mechanismisreleased

and

the

cam

follower

Follower

-Cam

follower

Cam

roller

shaft

fixitto

5-15-5)

Upon

stopper

0. 3n*n

Handwheel

with

mm.

Thrust

collar

Thread trimming

Thread

tnmming

ling

spring

peg

Vertically position

the

cam

ID

hole.

Marker

Roller

Marker

dot

line

Fig. 5-15-1

Fig. 5-15-3

Main

shaft

Main

Ro

er

Clearanceisas

smallasapprox.

shaft

1 mm

0

Thrust

Fig. 5-15-2

collar

Thread

trimming

cam

Thread trimming link spring

Fig. 5-15-4

-

43

-

Fig. 5-15-5

HOW

TO

ADJUST

1)

Loosen

2)

Inserta0.3mmspacer

hook

follower so that the follower

follower

3)

Press

cam

4)

5)

6)

7)

[Caution] ^ ,

setscrewd)and

ofthe

cam

follower,

wiU

comeinclose

the

thread

trimming

follower

thrust collar onto the main shaft.

Align

marker

onto

the

againstthe thrust collar.

Install

spring

screw.Atthis

as deep as 0 to 0.5 mm.

Put

the

and

the

connecting

longer

the

hook

Placea0.2

the

cam

link

stopper

thread trimming link stopper.

Do

not

might

cam follower stopper and the cam follower.

roller

the

marker

doton the

main

shaft

thread

trimming

pegisvertically

time,

thread

trimming

washerofthe

rod.Atthis

hook

toward

downward.

mm

thick

follower

until

use

any

extremely

setscrew

between

and

cam

inthe

directionofthe

lineonthe

main

cam.

while

pressing

link

positioned

the

small

link

hinge

time,

the

thread

spacer

and

tighten

you

feelasmall

tool

when

reduce

the

@.

the

follower

puUupportion

stopper,

contact.

thread

spring

spacer,and the cam

and

the

thrust

trimming

Screw

the

thread

the

thread

pegsothat

and

fixitto

screw

head

handwheel.

springinbetween

screwinthe

face

trimming

between

the

screwinthe

tightening

clearance

thread

the

endofscrew

link

the

follower

load.

Now,

the

provided

stopper

collar

cam

trimming

the

bed

should

the

and

thread

fix

screw.

and

against

Screw

with

the

cam

hole

for

with

enter

the

spring

trimmer

that

the

opening

stopper

trimming

the

nutofthe

Usingatool

between

the

cam

the

cam

the

small

bed

peg

has

and

the

1)

2)

b)

the

|[Caution]

a

of

RESULTS

Thread

trimming

The

machine

start or thread trimming.

The

thread

tothe

start

a loose stitch formation for the first

stitch at the sewing start.

If

the

machine locks, be

the

play

to

the

shaft

phase of the thread trimming cam.

Also

check

OF

IMPROPER

ADJUSTMENT

failure

may

lockatthe

cam

shaft

will

positionintime,

ofthe

main

shaft

direction,

the

occur.

timeofthe

failtoreturn

resulting

suretocheck

with

respect

position

parts.

or

in

(Excluding Q type)

(

0

Marker

•

line

Marker

<!

dot

Fig. 5-15-6

(G type)

Marker line Marker

\_

/

-

44

dot

-

(16)

1)

Thread

When

trimming

the cam

mounting

followerispushed

STANDARD

base

inward

ADJUSTMENTS

(in the

direction

of the

arrow),

of the thread trimming cam and the tension release shaft arm should be 0.8 to 1.0 mm.

2)

Clearance©between

03

mm.

release

Tension release

Cam

follower

Thread

trimming

Hctndwheel

o

shaft

arm

©

cam

Tension

arm driving

the

tension

release

arm

driving

Thread

mounting

Thread

cam

Tension shaft

shaftand the

trimmer

base

trimming

shaft

release

arm

Tension

shaft

tension

release

arm

Tension

release

clearance©between

release

arm

should

•

E

0.8to1.0mm

[Detailed

Detailed

figureofsection

shaft

figureofsection

Tension

0.2to0.3mm

the edge

be0.2 to

©

release

©

Main

shaft

Fig. 5-16-1

-

45

-

HOW

TO

ADJUST

RESULTS

ADJUSTMENT

OF

IMPROPER

1)

Loosen

setsaew

0.

Moveplate ® ,

which

retains

the

release shaft arm, forward or backward so that clearance ©

between the edge of the thread trimming cam and the tension

release shaft arm becomes 0.8 to 1.0 mm. After adjustmait,

securelytighten setscrew

2)

Loosen

setscrew

O • Move

©.

stopper@forwardorbackward

that clearance © between the tension release arm driving shaft

and

the

tension

adjustment,

release

securely

arm

tighten

becomes

setscrew

0.2to0.3

O •

mm.

After

tension

1) At the time of thread trimming, the top

endofthe

comeincontact

tension

with

release

the

shaft

end

faceofthe

thread trimming cam, and the thread

trimming cam shaft will not be able to

travel

the

normal

stroke

lock

amount.

will

occur.

trimming,

so

result, a

machine

2) Aftercompletion of thread

thread trimming cam shaft will fail to

return. As a result, a

occur.

machine

arm

will

As

a

the

lock will

-

46

-

(17)

Thread

trimming

magnet

STANDARD

arm

ADJUSTMENTS

When the cam follower is actuated to move in the direction of the shaft by the rotation of the thread

trimming

magnet

arm (at the time of

thread

trimming),

theclearance

between

the hook of the cam

follower and the top end of the stopper should be 0.5 mm or more.

[Caution]

When

the

contact

machine is

with

side

(§) of

engaged

the

thread

in normal operation,

trimming magnet arm.

Com

follower

side

Q of

the

cam follower

comesinclose

0,5mmor

more

0 @

Follower

(18)

Tension

Closely

release

fit the

notch

outside

diameteroftension

hole of the tension release notch, and fix the setscrew at that position. (Fig. 5-18-2)

[Caution]

After making

5-16-1) until it is

in

the

normal

the

adjustment,

engaged

directionofrotation.Atthis

with

push

thread

the

offtension release notch o , and the tension disk of tension controller

of

the

cam

follower

to

the

end

faceofthe

stopper

Fig. 5-17-1

release

thread

trimming

time,

arm.

notch

trimming

clutch

make

O to the left end

cam

shaftinthe

mechanism,

sure

that

the

(counterclockwise)

direction of

and

turn

the

tension

release

No.

2 closes upon returning

Position

the

setscrews

of the long

the

arrow-»(Fig.

handwheelbyhand

shaft

arm

comes

of

Thread

trimming cam

Meun

shaft

Tension

release

notch

Fig. 5-18-1

Tension

shaft

arm

release

-

47

-

Directionofrotationofthe

main

shaft

the

handwheel side)

Fig. 5-18-2

(as

observed

from

o

Appropriately

ttorad

is

obtained

the

follower

o

Refertothe

position

trimming

between

stopper.

"DISASSEMBLY/ASSEMBLY

(46)"onhowtomake

HOW

the

magnet

the

cam

the

TO

ADJUST

thread

trimming

aim

shaftsothat

toUower

adjustment.

magnet

the

specified

notch

and

the

PROCEDURES

armonthe

clearaiice

top

end

of

results

adjustment

o

Since

the

mechanismisnot

thread

be

rotatesathigh

damage,

the

Since

with

trimming

thread

trimming

performed

abrasion,

corresponding

the

cam

the

follower

mechanism

properly.Asa

will

occur.

of

improper

trimming

completely

and

even

speed.Asa

tension

when

clutch

release

the

result,

main

loosening,orplay

parts

may

occur.

follower

comesincontact

stopper,

will

the

not

result,amachine

released,

will

shaft

in

thread

work

lock

o

Loosen

setscrewO.and

refetringtothe

making

the

adjust

the

"STANDARD

adjustment,besuretosecurely

ADJUSTMENTS

tighten

(18).

After

setscrew

O

o

The

lengthofthread

needle

after

thread

short and inconsistent,

o

The

thread

may

eyeat the

sewing

remainingonthe

trimming

slip

out

from

start.

wiU

the

be too

needle

-

48

-

(19)

Amountofreleaseofthe

Pressing the

thread

the normaldirection of

STANDARD

tension

trimming cam shaft in the direction of the arrow

rotation

until the tension releaseshaft arm rests on stepped

ADJUSTMENTS

disks

(-»•),

turn the handwheel by hand in

portion

tension release notch. Now, the rising amount of the tension disk of the tension controller No. 2 should

be 0.6 to 0.8mmfor S or H type

modelofsewing

machine

or 0.8 to 1.0mm for G

type.

Fig. 5-19-1, Fig. 5-19-2)

Increase

S, H type:

0.6to0.8mm

G type:

0.8to1.0mm

(Fig.

5-16-1,

Fig. 5-19-1

Fig. 5-19-2

-

49

-

now

TO

ADJUST

RESULTS

ADJUSTMENT

OF

IMPROPER

o Loosenthread

of releaseof the referring to the

[Caution]

o After making

check

thread

are completeiy ciosed. (The tension disks

highest

o if

the

tension

actuating

the

desired pattern to actuate

that

the

take-up

dead

the

tension

arm setscrewO , and adjust the

tension

"STANDARD

the

adjustment,

thread

tension

reaches

point.)

disks

cioseatthe

machine, be

disks by moving

ADJUSTMENTS

turn

the

disks

keep

Hs highest

sure

dead

timeofneedle

to open

the

thread trimming, or by

thread

tension

(19)."

handwheei by hand to

opening

point

and

openatthe

threading

the

disks by sewing

pressing the thread trimming cam shaft in the direction of arrow (Fig. 5-16-1)to turn

directionofrotation

mechanism workingsothat

upper

resting

position.

and

the

handwheei in

start

the

normai

thread

trimming

main shaft is brought to

amount

untii

the

ciutch

arm0

the

disks

or

the

The length of thread remaining on the needle after thread trimming will be too

short

and

inconsistent.

A loose stitch formation may result.

-

50

-

(20)

Intermediate

STANDARD

presser

ADJUSTMENTS

(Theadjustments should be madeafter the operation air pressure has been decreased to 0 kgf/cm^)

1) After confirming that the READY lamp lights up, turn the Needle Threading switch ON and OFF several times, and check that the intermediate presser moves smoothly up and down.

o The clearance between the intermediate presser adjusting screw and the nutofintermediate presser

adjusting screw should be 10±1 mm for S type model of sewing machine or 5±1 mm for H or G type one.

(Fig. 5-20-1)

o The intermediate presser rod should projects 19±0.2 mm (dimension B) from the top end of the

intermediate presser bracket for S type model of sewing machine, or 2±0.2 mm for H or G type one.

o The needle should enter the center of the hole in the intermediate presser. (Fig. 5-20-3)

b Hie air

flow

adjustmentofspeed

controller

(B)

mounted

onthe

intermediate

presser

cylinder

has

been

appropriately made. (Refer to the "STANDARD ADJUSTMENTS (41).")

The operating air pressure has been adjusted to 5 to 5.5

kgf/cm"

using the air regulator. (Refer to the

"STANDARD ADJUSTMENTS (41).")

2) The marker dot on the main shaft is alignedwith the marker line on the intermediate pressercam. (Fig. 5-

20-4)

3) The clearance between the end face of the intermediate presser aim and the end face of the intermediate

presserrod is 1 mm with respect to the direction of the arrow after play has been

eii.minated.

(Fig.5-20-5)

4) When the intermediate presser is in the lowest position of its stroke, the clearance between the bottom face of the intermediate presser and the top face of the intermediate presser bar lower bushing is 3±0.2

mm.

Additionally,

positioning

pinOkeepsincontact

withthe top end of

positioning

link 0 whilethe

intermediate presser is actuated. (Fig. 5-20-5, Fig. 5-20-7)

[Caution]

After making

been

done

the

adjustment,

properly.

turn

the

handwheei by

hand,

and

make

sure

that

the

adjustments

has

intermediate

adjusting

Intermediate

adjusting

screw

presser

screw

presser ^

nut

Fig.

Marker

5-20-1

Intermediate

presser

dot

Marker

Fig. 5-20-4

Intermediate

presser

cam

line

bracket

Fig.

Intermediate

presser

intermediate

presser

¥

5-20-2

1

mm

rod

Fig. 5-20-5

Face

bar

intermediate

plate

Fig. 5-20-3

side

Needle

Intermediate

presser

lower

bushing

rV

bar

Fig. 5-20-6

Intermediate

presser

Intermediate

presser

bracket

bar

-

51

-

n

Adjustsothat

adjusting

is

o

Loosen

adjust

from

screw

10±1

mm. (Fig.

intermediate

the

top

intermediate

modelofsewing

(Fig.

5-20-3)

the

holeinthe

presser

bracket

2)

Loosen

intermediate

adjustment

2)."

Then

sewing

machine,

intermediate

main

shaftintermsofthe

type

one,

shaftintermsofthe

At

the

marker

the

lowest

needle

Move

intermediate

its

stroke

lowest

lineindirection©,and

reach

needle

Uming

materialtobe

(Fig. 5-20-4)

3)

When

making

intermediate

ITcWo

4)

Loosen

(Fm

setscrewOwith

5-21-1),

"STANDARD presser

oscillating

link0closely

HOW

TO

ADJUST

the

clearance

and

5-20-1)

endofthe

between

the

intermediate

presser

bracket

presser

rodsothatitprojects

intermediate

the

intermediate

presser

clamping

presser

machine,or2±0.2mmforHorGtype

and

that

the

needle

point

enters

intermediate

clamping

referringtothe

tighten

setsaew0.ForSorHtype

align

presser

align

the

marker

timeofdeUvery,

line

and

positionofits

bar

reaches

the

marker

presser

earlier

position.Onthe

the

lowest

bar.Bymaking

presser.

screwO.(Fig.

presser

cam

"STANDARD

the

marker

cam

with

normal

line

reverse

the

intermediate

Now,

5-20-3)

setscrew

ADJUSTNffi^

line

engravedonthe

the

marker

dot

directionofrotation.

with

the

marker

directionofrotation.

marker

dotisaligned

presser

strokeatthe

the

lowest

positionofits

lineindirectionQ,and

will

reach

the

lowest

than

the

needle

bar

will

other

hand,

move

the

intermediate

positionofits

stroke

this

adjustment,

canbeobtainedinaccordance

sewn.

the

adjustment

presser

cam

the

"^ANDARD

and

make

ADJUSTMENTS

shaft0with

pressed

describedinstep

and

the

end

the

needle

the

adjustment

(20)-4)"bymoving intermediate

against

positioning

0

face

ADJUSmEmS

baratits

describedinthe

presser

adjusting

screwO,Md

19±0.2

bracket

tighten

©'

forStype

just

the

intermediate

center

model

engravedonthe

dotonthe

reaches

time

when

stroke.

the

position

reach

its

the

marker

presser

later

than

the

optimum

with

the

type

2),

adjust

intermediate

lowesteapx)i

pinQ.(fig-

1)

screw

nut

[Caution]

mm

one

ot

(20-

of

For

U

mam

with

the

of

will

of

presser

(20).3),

intermediate

results

The

intermediate

up

after

cycle.

Refer

tothe

ADJUSTMENT (8)."

o The

intermediate

up

after

cycle.

top

endofthe

may

enter

lower

bushing

presser

The

needle

of the holeof the

Asaresult,aloose

occur,orthe

with the intermediate presser.

2)Ifthe

3)

4)

[Caution]

timing

presser

its

strokeismuch

whenthe

dead

pointofits

may

occur.

Onthe

the

intermediate

lowest

timing

lowest

stitches

intermediate

the

overlapping

The

intermediate

pushed

rod

and

whenthemainshaft

•normal direction.

Abnormal

machine operation.

Abnormal

especially

positioning adequately

positioning

kepttooperateinthis

corresponding

The

obtained.

adjustments

of

improper

adjustment

presser

the

completion

-RESULTSOFIMPROPER

presser

the

completion

The

round

cornered

intermediate

the

intermediate

while

the

goes

up,

resultinginan

may

failto

intermediate

stitch

needle

will

when

the

reaches

the

lowest

earlier

needle

bar

stroke,

other

hand,

if the

presser

dead

pointismuch

when

the

needle

dead

pointofits

maybefonned

presser

sectionsofthe

presser

against

specified

the

theload

torque

noise

may

noise

will

when

Intermediate

link0does

comeincontact

pinO.If

parts

vertical

(Refertothe

intermediate

may

failtogo

ofa

sewing

may

fail

togo

ofa

sewing

sectioninthe

presser

bar

intermediate

oil

enter

the

center

presser.

formation

comeincontactj

intermediate

dead

point

than

the

timing

reaches

(21).")

the

lowest

stitch

skipping

timing

when

reaches

bar

stroke,

or the

maybecaught

rotates

occur

be produced

might

stroke

the

later

than

reaches

loose

material.

cam

may

presser

may

fluctuate

in the

during

presser

not

with

the

machine

condition,

break.

will

"STANDARD

bar

leak.

wiU

of

the

in

be

the

not

|

is

be

Fig. 5-20-7

-

52

-

STANDARD

ADJUSTMENTS

(21) Vertical

1) The center of connectingshaft nut O of the intermediate presser rod aligns with marker dot At this time, the vertical stroke of the intermediate presser is 4 mm (at the time of delivery).

If the

connecting shaft nut O of the intermediate presser rod should be positioned as shown in the table below,

or aligned

Furthest point in direction

Marker dot Q

Marker

Furthest point in direction ©

[Caution]

If

Be

wiper has become improperly positioned, be sure to readjust its position. (Fig.

2) If the

lowest position):

Connecting

0.5mmclearance

dead pointofthe needle bar. (Fig. 5-21-2)

3) If the vertical stroke of the intermediate presser is set to return from 0 mm to 3 to 7 mm:

Referto the

strokeofthe

the

sure

vertical

stroke

with

the marker dot.

Alignment point

dot

strokeofthe

to checkthe position of the wiper (refer to the

stroke

shaft

nut

"STANDARD

of the

O of

between

intermediate

Verticalstroke of the intermediate presser (mm)

(fi)

intermediate

the

intermediate

ADJUSTMENTS

presser

varies

within

7

6

5

3

presserischanged:

"STANDARD

is set to 0

presser

positioning

(20)-4)."

mm

rod

shouldbefixedinthe

link0and

the

range

(the

from

3 to 7

ADJUSTMENTS

intermediate

positioning

mm,

the

(9)").Ifthe

5-21-1)

presserisfixed

lowest

position

®.

center

in the

providing

highest

of

a

Fig. 5-21-1

m

(D

Fig. 5-21-2

-

53

-

HOW

TO

ADJUST

RESULTS

ADJUSTMENT

OF

IMPROPER

1)

Loosen

connecting

shaft nut O of the

intermediate

presser

and moveintermediate presser rod O in the direction of arrow

to

inaease

arrow

the intermediate presser is 4 mm.

Use

marker

to

decrease

dots

the

stroke.

the

©,

Move

stroke.

the

The

rodinthe

standard

direction vertical

of

stroke

pointstomake

the adjustment. A 6 mm stroke is obtained when the center of

the connecting shaft nut of the intermediate presserrod aligns

with marker dot

©.

A 5 mm stroke is obtained when the

center of the connecting shaft nut of the intermediate presser rod

aligns with marker dot

©.

A 4 mm stroke is obtained when the

center of the connecting shaft nut of the intermediate presser rod

aligns with marker dot

©.

2) Fix connectingshaft nut O of the intermediatepresser rod in

the lowest position.

Bring the needle bar to its highest dead point.

Loosen

shaft 0 so that a 0.5 mm clearance is obtained between

intermediate presserpositioning link 0 and

Securely

[Caution]

3) Refer to the

setsaew

O >and move intermediate presser oscillating

positioning

tighten

setsaew

Make

sure that Intermediate presser positioning link 0 does

not come in contact with positioning pin

intermediate

contact

handwheelisturnedbyhand machine

against

spring, breakage of

5-21-1,

presser

with intermediate

operates

the

and

Fig.

5-21-2)

"STANDARD

O.

O,

and the

oscillating shaft 0

presser

to rotate

under

the

condition

the

oscillating

the

corresponding parts may result. (Fig.

ADJUSTMENTS

does

not

spring0,when

the

main shaft. If

that

the

shaft

hits

against

(20)-4)."

link

come

the

hits

the

1) The specified vertical stroke of the

rod

intermediate presserwill not be o^ained.

In

ordertooverride

of

overlapping section of the

material,

the

vertical stroke

the intermediate presser should

be made greater. In this case,

be

suretoremember

floppy material cannot be

easily fedifthe vertical stroke

is too great, resulting in stitch

skipping.

2) The 0 mm vertical stroke of the

intermediate presser will not be obtained

0.

in

the

3) Referto the

ADJUSTMENTS (20)-4)."

"STANDARD

the

of

that

-

54

-

(22)

The

thed5 holein the

its lowest position.

At

intermediate

distance

the

time,

the

presser

from

the

intermediate

center

^5

hole

STANDARD

lifting

of the d5

stroke

ADJUSTMENTS

holeinintermediate

presser

cylinder

cylinder0shouldbe130.5±0.2mmwhen

presser

lifting

stroke

issetto20mm(at

^5

hole

Fig. 5-22-1

knuckle

the

intermediate

the

timeofdelivery).

O to the

cylinder

center

(Fig.

of

is in

5-22-1)

(23)

Bobbin

The

bobbin

Holder

winding

holder

boss

should

release the

Top

cover

Fig. 5-23-1

bobbin

Bobbin

holder

when

the

bobbin

has been

wound

Fig. 5-23-2

80%

full.

Winding

cam

-

55

-

o

Loosen

adjust

referringtothe

shaft

the

making

cylinder

the

knuckleO•(Fig-

now

nut@of

screwing

"STANDARD

intermediate

depthofthe

adjustment,

TO

ADJUST

presser

intermediate

ADJUSTMENT

securely

tighten

5-22-1)

cylinderO,and

cylinder

(22)."

nutOand

o

knuckle

After

O

intermediate

RESULTS OF IMPROPER

adjustment

When

the

mm;

The

intermediate

less

than20mm.

When

mm:

The

intermediate

lifted.

top

endofthe

may

enter

lower

presser

distance

the

distanceisless

The

the

bushing

goes

exceeds

presser

round

cornered

intermediate

while

the

up,

resultinginan

130.5±0.2

lifting

stroke

than

130.5±0.2

will

fail

tobe

section

in the

presser

bar

presser

bar

intermediate

oil

leak.

is

1)

Loosen

so

that

wound

2)Ifthe

rearofthe

After

the

bobbin

the

bobbin

80%

full.

above

adjustment

top

making

holder

After

cover,

and

the

adjustment,

boss

nut.

releases

making

does

the

not

adjust

tighten

Turn

the

bobbin

adjustment,

work,

loosen

the

angleofthe

setscrew

bobbin

holder

which

has

been

tightent^nut.

setscrewffat

bobbin

holder.

O-

boss

t e

oAnimproper

wound on the bobbin.

amountofthread

will

be

-

56

-

(24)

Bobbin

driving

Bobbin

winder

wheel

winder

Main

driving

shaft

wheel

Face

STANDARD

plate

side

ADJUSTMENTS

552:0.4mm

Bobbin winder driving

z

wheel

irnr

Arm

]

Fig. 5-24-1

(25) Height of

0.3

mmor

en

the

Throat

less

throat

Throat

plate

@

plate auxiliary

cover

Fig. 5-24-2

Auxiliary supports

cover

(right)

Auxiliary

cover

-

Fig. 5-25-2

57

-

Fig. 5-25-1

now

TO

ADJUST

RESULTS

ADJUSTMENT

OF

IMPROPER

o

Loosen

obtained from the end face of the bobbin winder driving wheel

and

setscrews O »snd

the

center

tighten

the

of thetop

setsaews so

adjust

so thata

faceofcover

that

the

bobbin

55±0.4

attaching

winder

mm

tap

O.

driving

distance

fixedat the position. (Fig.5-24-1,Fig. 5-24-2)

Then

wheel

o The bobbin may fail to spin or the

is

bobbin holder may fail to actuate, even

if

the

bobbinissetonthe

winder.

bobbin

Loosensix setscrews O (threesetscrewsin both the left and

right)

of the

throat

plate

auxiliary

thatthe throat

At this time, be carefulto adjust the points

portion(@)

throat

plateauxiliary coveris

plateby 0.3 mm or less. Then

(Fig.

5-25-1).

cover

supports,

positioned tighten

thesetscrews.

marked

and

adjust

higherthan the

by the

(Fig.5-25-1,Fig. 5-25-2)

so

The feed plate will be caughtby the

stepped

and the throat plate auxiliary cover

resulting in a deformed pattern. The feed plate may bend.

parts

formed

by the

throat

plate

-

58

-

STANDARD

ADJUSTMENTS

(26) Heightofthe

work

clamp

foot

slider

Presser plate

Work

clampfoot slider

/ /

3.5»0.2mm

Feed

bracket

O

Fig. 5-26-1

(27) Holding

used)

forceofthe

feeding

frame

ball

The feeding frame support shaft is released from the feeding frame ball catcher when the feeding frame

support

shaft

baseispressed

in the

direction

of the

•y/

catcher

arrow

Feeding

ball

catcher

Work

(when

frame

clamp

with

foot

slider

the

optional

3.5 to 4.0

base

feeding

kgf/cm^

frame

load.

(Fig.

arm

5-27-1)

is

Feeding

frame

support

shaft

base

Feeding

frame

support

shaft

(28)

Vertical

The distance from the center of the 65 holeofthe work clamp foot cylinder knuckle to the centerofthe

65 holeofthe cylinder knuckle should be 120.5±0.3 mm, then the shaftofthe work clamp foot cylinder is in its lowest position. (Fig. 5-28-1)

strokeofthe

work

clamp

Fig.

5-27-1

foot

Holding

adjusting

IgO.&sO.Smm

force

screwO

D

Cylinder

knuckle

Hose

elbow

Fig. 5-28-1

-

59

-

o

Loosen

is

slider

wrench.

setscrew

obtained

between

basebyturning

Then

HOW

O >

tighten

TO

ADJUST

^nd

adjustsothata3.5±0.2mmclearance

the

presser

plate

and

the

work

clamp

the

work

clamp

foot

slider

base

setsaew

O.

foot

using

o The

RESULTS

pattern

OF

IMPROPER

adjustment

maybedeformed.

a

o

Refertothe

holding

force

Turn holding

direction,

adjust

mounted

Loosen

screwing

referringtothe After

using

each on the left and right.

"STANDARD

forceofthe

adjusting

holding

the

screw

force

willbeincreased.

and

the

holding

one each on both the rightand leftside.

nut

O of

depthofthe

"STANDARD

adjustment,besuretosecurely

nut

O*

Equally

ADJUSTMENT

feeding

O-

adjusting

holding

force

forceofthe

the

work

cylinder

adjust

(27),"

frame

ball

catcher

saewOclockwise,

Turn

the

using

and

screwinthe

willbedeaeased.Besure

two

feeding

clamp

cylinder

knuckle

ADJUSTMENTS

the

two

frame

shaft

with

regardtothe

fix

the

cylinder

cylinders

ball

and

(28).

mounted

and

adjust

holding

the

catchers

adjust

knuckle

the

reverse

to

the

shaft

one

oIfthe holding force is too strong:

The

feeding

removed.

o If the holdingforceis inadequate:

When

sewing

The

If

the distance exceeds 120.5±0.3 mm:

The feedingframe may fail to go up as

high as 30 mm. If the distance is less than 120.5±03

mm:

The

down As a

the

held securely.

frame

the

feeding

end,

the

pattern

maybedeformed.

feeding

to the

result,

correct

position

cannotbeinstalled

frame

goesup at the

feeding

framemayfail to come lowest

theworkpiece

frame

position of its stroke

may

sinceit

may

slip

or

drop

from

notbe

-

60

-

(29)

Adjusting

X-Y

table

the

top

cover

of X-travel unit

STANDARD

ADJUSTMENTS

and

travel

unit

cover

joint

Top

of

cover

X-travel

Travel unit

asm.

unit

cover

Travel

presser

Fig. 5-29-1

Fig. 5-29-2

(30) X

guide

shaft

support

When the feed bracket is moved laterally by hand, both ends of the X guide shaft support should not

move up and down.

joint

unit

mounting

cover

plate

Fig. 5-30-1

-

61

-

Y

movable

shaft

setscrew

now

TO

ADJUST

RESULTS

ADJUSTMENT

OF

IMPROPER

o Put the top cover asm. of the X-travel unit between the X-Y

table and the travel unit cover joint and fit the bored portion on

the rearof the

travel

unitcoverjoint to

drilled

hole

O.

o Fix the top cover of the X-travel unit using the setscrews. Two

of

these setscrews are commonly used to fix the travel unit cover

joint.

[Caution]

After

the wellasto not

pushed

auxiliary

-29-2

and

adjustment,

the

right

against

cover

-53-1)

and

move

and

lefttoconfirm

feed

bracket

the

travel

the

feed

auxiliary

unit

bracket

cover

that

cover,

(A).

back

the

(Figures

top

and

cover

throat

forth

plate

5-29-1,

o Closely fitting the travel cover presser against plane A, fix the

travel cover presser mounting presser on the feed bracket with

the setscrews. (Figures 5-29-1 and -2)

o The corresponding parts may become

damaged.

as

Is

Move the feed bracket toward the handwheel (in the direction of

the arrow) by hand until it will go no further.

Loosen

theYmovable

shaft

setscrews so that

sideAof

the Y

movable shaft comes in full contact with side B of the X guide

shaftsupport. Then

tighten

theY

movable

shaft

-

setscrews.

62

-

o The pattern may be deformed.

(31)

X-direction

Move

the

feed

bracket

STANDARD

belt

tension

as far to the left as

ADJUSTMENTS

possible.

Adjustsothat

the

X-direction

feed

1.6to 1.8 mm when a load of 500 g is applied to the middle (shown by the arrow) of the right belt.

1.

6~1.

Sirni

belt

slackens

by

(32) Y motor

y

movable

shaft

mounting

base

Fig. 5-31-1

Y motor mounting

base

(asm.)

Y motor mounting

(asm.)

setscrews O

SS7151210SP

- 4

base

PCS.

Fig. 5-32-1

-

63

-

now

TO

ADJUST

RESULTS

ADJUSTMENT

OF

IMPROPER

o

Loosen

to

[Caution]

Tightening

screwOand

adjust

the

belt

screwOwili

beltslackagainaftertightening screwO •

nut

tension.

0 •

Turn

Tighten

affect

the

tension

adjusting

saewOand

belt

tension,socheck

(Fig-

nut

0 .

5-31-1)

screw

0

the

o Thepattern may be deformed.

(1)

Move

the

Y-travel

which

the

moving

(2)

Adjust

the

heightoftheYmotor

torqueof2.5to4kgis

shaftispressed,inthe

directionofthe

[Caution] * .t. i

1.Donot

2.

Adjust

3.

This

connect

machine.

theY

adjustment

maintenance. So, never loosen the screw In the Y motor

base

(asm.).

shaft

back

and

forth

torqueismaximizedisreached.

basesothatastarting

developed

aforementioned

arrow

the

connectorofthe

motor

base

is notnecessaryinthe

with

the

when

state

stepping

presser

untilaposition

pressing

(1),inthe

motor

plate

regular

the

Y-travel

removed.

at

tothe|

A loud noise will be produced along

with the feed in the Y-direaion. The

pattern

maybedeformed,

I

corresponding

damaged.

partsmay

orthe

become

-

64

-

STANDARD

ADJUSTMENTS

(33)-1

A. Adjusting the origins

1) Remove the needle.

2) Set the origin gauge within the feeding frame.

3)

4) Turn ON the powerswitch, and press the feeding frame switch to let the feedingframe come down. Then

5)

6)

B.

1)

2)

3)

4)

Fine

adjustmentofthe

Remove

cover

the scale. (Fig. 5-33-2)

attach

Press

found, the feed

[Caution]

Afterthe origin has been found, the feeding frame

come down only when the feeding frame switch is depressed. (Notethat

in contact with the needle ifthe feeding frame goes up with

the feeding frame to its highest position after the needle

travel limit, first remove

Turn

the

[Caution]

five

setscrews0,loosen

O.

Set

rotary

the

needle.

the

start

switch.

the

handwheelbyhand

needle

pointispositioned

DIP

mechanism

Oncethe originadjustment has been completed, turn

switch

Adjusting the X/Y travel limit

Follow

Press

the

shown.) (Fig.5-33-1, Fig. 5-33-3)

Move the needle point back to within the X travel limit.

Press that

be shown.) (Fig. 5-33-1, Fig. 5-33-3)

O to 0

the

jog

needle

jog

the

procedure

keys!

point

keys

needle

(the

switch

described

4-<

[and!6^[on

stops

onthe X

I8a

|and|2yjon

point

stopsontheYtravel

XA^

origins

the

switch

O on

Only

the

feed

will be stopped.

the

needle beforehand.)

until

the

above

has been

in step 1)

the

travel

the

three

the

mechanism

needle

the01

drilled

factory

through

operation

limit

of the

operation

limit

setscrews

I/F

circuit

@ of

control

board

mountedonthe

willbeactuatedtofind

will

not go up. The feeding frame will go up and

the

has

been removed. Before adjusting

bar

reaches

the

holefor the

OFF

lowest

origin

the power switch, and

- set to 0)on the scale.

5) of A.

paneltomove

origin

paneltomove

ofthe

gauge.

origin

the

feeding

(±1.5

the

feeding

gauge.

needle attached. Be sure to bring

box

cover

the

position

of the

(Fig.

frametothe

mm)

frame

(±1.5

Q >snd

right

origin.

the

of its

origin

remove

side

from

When

origin gauge will come

stroke.Atthis

gauge.

set

rotary

5-33-2}

rightorleftsothat

(Error

indication

forward

mm)

(Error

and

indication

control

you

to5 on

the

origin

the

time,

DIP

O willbe

backward

[4]

is

so

will

X/Y

Feeding frame

Feed

bracket

X

travel

Fig. 5-33-1

limit *2

drilled

for origin gauge

hole

Y

travel

limit

Y

X

travel

*3

travel

limit

*1

*4

-

65

-

now

TO

ADJUST

DOOOO

RESULTS

ADJUSTMENT

OF

IMPROPER

The

positions of the

X/Y origin

X/Y

sensor

on operation

illustrated in Fig.

5-33-3.

travel

willbeshown

the

display of the

and

limit

panel

the

eis

X-dlrectlon

D:

Travel

E: Origin

F;

Travel

Fig. 5-33-2

limit

*2

limit

*1

Fig.

BO.

n

5-33-3

••ipsn

Y-directlon

G;

Travel

H; Origin

I:

Travel

IB

limit

•JUKI

nsQ

limit

*4

*3

AMS

8 -9

-

66

-

STANDARD

ADJUSTMENTS

(33)-2 X/Y

origins

and

travel

limit

sensors

1) Remove the needle. Remove setscrews O the feeding frame arm.

2)

Attach the sensor adjusting gauge taking the position of the feeding frame arm guide pin as reference.

3)

(The related dimensions for the sensor adjusting gauge are shown in Fig. 5-33-5.)

Check the positions of origin and the XfY travel limit referring to the "STANDARD ADJUSTMENTS

4)

(33)-l Fine adjustment of the X/Y origin". (See Fig. 5-33-5)

Work

clamp

Feeding

frame

Sensor

adjusting

gauge

Fig. 5-33-4

-

67

-

now

TO

ADJUST

RESULTS

adjustment

OF

IMPROPER

A.

Adjusting

1)

Remove

feed

2)

Make

"STANDARD

3)

Press

move

drilled

4)

Loosen

the

from1to0.Immediately

setscrews

5)

Press

framesothat

travel

6)

Loosen attaching

the

display

33-6) , ^ ..

7)

Press

framesothat

travellimit *2. (Fig.5-33-3)

8)

Loosen

attaching

the

display

the

X-axis

the

feed

bracket

cover.

the

adjustments

ADJUSTMENT

jog

kevsiTTi.rsrj,'

the

feeding

hole

for

originofthe

setscrewsO,and

leftorright

jog

limit

untU

O •

(Fig-

keyIsV|on

the

*1.

(Fig.

setscrews0»and

plate

asm.tothe

travel

limit*1changes

has

changed,

jog

keyl

4-<

the

setscrewsO»and

plate

asm.tothe

travel

limit*2changes

has

changed,

origin

and

bracket

auxiliary

describedinsteps

SAjand

frame.

Align

origin

moveXsensor

display

(B)

after

5-33-3,

Fig.

the

operation

needle

point

5-33-6,

move

leftorright

from1to0.Immediately

tighten

setscrewsO-(Fig-

|on

the

operation

needle

point

move

leftorright

from1to0.Immediately

tighten

travel

limit

covers

(33)-l, A."

|2t

|on

the

needle

gauge.

showing

the

display

5-33-5)

paneltomove

aligns

with

Fig.

5-33-3)

X-axis

until

paneltomove

aligns

with

X-axis

setscrews

O•

sensor

(left

and

1),3)and4)of the

operation

point

with

(Fig.

5-33-5)

attaching

theXorigin

has

changed,

marker

right

travel

display

marker

left

travel

until

display

right),

and

the panel

the

<60.5

plate

asm.

changes

tighten

the

feeding

line

Vof

limit

sensor

(F)

showing

after

5-33-3,

the

line

limit

(D)

Fig.

leeomg

Vof

sensor

showing

after

o If the

o If the travel limit has not been properly

to

[Caution!

the

origin

hasnot

adjusted:

The

origin

for

align

with

the

pattern.

adjusted:

The

sewing

area

stepping

the

reached. As a result, an abnormal noise may be produced.

If

condition

mechanism

become damaged. Never operate the

machine until

have

motor

medianical

the

machine Is

been

mentioned

completed.

been

inputtingapattern

origin

for

maybenarrower.

failstostop

travel limit has been

operated

above,

components

the

proper

5-

the

properly

sewing

the

even

under

the

might

adjustments

fails

The

when

the

feed

toj

^^\fter^making

disk

enters

photo-couplers

the

sensor

slit

disk

7)

If

theydonot,

the

photo-coupler

disk

and

overlapping

the

adjustments,

the

center

and

photo-couplerby5

passes

through

adjust

the

photo-coupler."

depth

make

ofthe

the

clearance

sift

disk

mmormore,

three

Note

that

referringto"C.

simultaneously

sure

that

between

overlaps

when

X-axIs

sensors.

between

Clearance

that

you

with

step

the

X-axis

thesensor

the

top

the

(Fig.

the

slit

disk

between

should

adjust

4),6)and

slit

end

of

X-^is

5-33

and

the

slit

8)

the

-

68

-

STANDARD

ADJUSTMENTS

5) Adjust the sensor adjusting gauge to obtain the following dimensions.

Marker

travel

line

limit

Marker

travel

/

^0.5

for

*1

58

Marker

travel

drilled

the

for

line

limit *41

limit

origin i

X-axis

for

hole

line

Y-axis

for

*3

58

/

Y-axis

136

Marker

travel

limit

line

for

X-axis

*2

8.5

d7

46

d4

dS

cnT

A.

foi

cn

in

ID

b

1

d4

Fig. 5-33-5

-

69

-

HOW

TO

ADJUST

B. Adjusting the Y-axis origin and travel limit

9) Remove the Y sensor cover. (Fig. 5-33-8)

Follow the same procedure described in steps 2) and 3).

10) Loosen setscrews O > move the Y sensor attaching plate

11)

to the left or right until display (H) showing the Y origin

changes from 1 to 0. Immediately after the display has

changed,tighten setscrewsO • (Fig. 5-33-3,Fig.

Press

jog

12)

keyQon

the

operation

paneltomove

feeding frame until display (I) showing the travel limit *3

changes from 1 to 0. Immediately after the display has

changed, stop the feeding frame. (Fig. 5-33-3) Make sure that a gap between the sensor and the needle tip is

13)

1.5

mmorlessintermsofthe

•3.

With regard to display (G) showing travel limit *4, press jog

14)

marker

lineVof

key and make the adjustment referring to the procedure

described in step 12).

With regard to marker line V of travel limit *4, make sure

15)

that the specified distance is obtained referring the procedure

described in step 13).

[Caution]

After making

disk

enters

photo-couplers

the

sensor

slit

disk

not,

adjust

coupler referring to

the

photo-coupler.'

the

adjustments, make

the

centerofthe

and

photo-coupler

passes

the

through

clearance

that

the

slit disk overlaps

by 5 mm or

the

two Y-axIs

between

"0.

Clearance between

sure

that

between

more,

sensors.Ifthey

the

slit disk

the

when

and

the

5-33-9)

the

travel

Y-axis slit

the

sensor

top

the

slit disk

limit

end of

Y-axis

do

photo-

and

RESULTS

ADJUSTMENT

OF

IMPROPER

-

70

-

X-eixis right

travel

limit

/

EE

sensor

-O-

TT

X-axis

siadisk

\ ^

I • I

—===

P

bo

Fig. 5-33-6

STANDARD

X-axis

sensor

\ X-origin

3

-o-

ADJUSTMENTS

attaching plate

Vr-rA

sensor

o o

^ \

!-axis

X"3 trav

travel

left

limit

sensor

—

TTTT

Y-origin

X-axis

sensors

E

7

X-8ucis

Fig. 5-33-7

n-TT

slit

disk

Y-axis

limit

'I

sensor

\

M.

travel

C.

Adjusting

Y-etxis

sensor

the

cover

Fig. 5-33-8

clearance

I I

between

®

theslit diskand the

Sensor

/

Y-origin

sensors

u-

Y-axis

attaching plate

photo-coupler

sensor

L_58±0.

Fig. 5-33-9

Y-axis

s It

Y-ongin

2irm_J

disk

Slit

disk

Y-axis

travel

limit

sensor

Fig. 5-33-10

-

71

-

Fig. 5-33-11

Y slit fixing

plate

now

o

Adjusting

Respectively

tot

leftby92

5-33-10 and -11)

°

If?heYsm

r^,^ormorcfloosen

After

Adiust

Adjusting

Y

theX

they

work

mm.

the

adjustment,

theYorigin

the

travel

limit

sensor

position

when

the

Tlien,

plate

and

using

origin

sensor.

TO ADJUST

theXtravel

feeding

fix

them

photo-coupler

s^ws@and

fixitwith

sensors

frame

with

the

(ngh)

movestothe

screwsO.(Figures

do

not

overlapasdeep

adjust

theYslit

screws.

screws0.(Figures

automaticaUy

determines

^ ^

iigW

fnttng

5-33-9

and

the

positionofthe

and

^5

plate.

-11)

RESULTS OF IMPROPER

adjustment

o

The

sensors

or

travel

problems

adjustmentofthe

o

Since

with

corresponding

broken or damaged.

failtodetect

limits,

causedbythe

theslit

disk

the

photo-coupler,

resulting

originortravel

parts

the

in thesame

improper

may

comeincontact

the

could

become

X/Y

origin

limits,

j

""'Ssure

photo-coupler.

that

theamdisk

does

not

comeincontaet

with

the

-

72

-

(34)

(35)

STANDARD

Shuttle If

or

race

ring

the blade point of the shuttle becomes badly worn out, remove the shuttle race ring and check whether

not

the

hatched

section

illustrated

has

ADJUSTMENTS

the

dimensions

of

0.2

x 8

mm.

Binm

0.2™i

Fig. 5-34-1

Eliminating

play

from

the

main

shaft

Screwdriver

Thrust

Main

shaft

Bushing

4

' ' Thrustcollar Thread

collar

Handwheel

trimming

cam

Fig. 5-35-1

(36)

Belt

tension

The middle of the belt should slacken by 10 mm when section A of the belt is subjected to 1 kg load.

Fig. 5-36-1

-

73

-

HOW

TO

ADJUST

RESULTS

ADJUSTMENT

OF

IMPROPER

oIfthe

hatched

section

does

not

have

the

dimensionsof0.2

8 mm, correct it using an oilstone.

o

Drawing

the

handwheel

in the

direction

of the

arrow,

fix the

thrust collar while pressing it against the intermediatebushing.

mmx

o Loosen nutsO,and move the motor up or down to change the

installation position of the motor.

[Caution]

Be

suretoremove

presser

removed.

or

Install

the

belt

with

the

Intermediate

o The vibrationofthe belt may increase,

resulting in the sewing machine

vibrating more greatly.

[Caution]

If

the

belt

become

the

sewing

-

74

-

the

vibrationofthe

belt

may

cover.

damaged.

belt

tension

machine.

beltIsexcessive,

comeIncontact

Asaresult,

before

the

Be

suretocheck

operating

belt

with

the

may

the

(37)

Raising

the

sewing

machine

STANDARD

head

ADJUSTMENTS

When doing maintenance work on the shuttle driver shaft components, raise the sewing machine head

according to the following procedure.

Fig. 5-37-1

-

75

-

now

TO

ADJUST

RESULTS

adjustment

OF

IMPROPER

oToraise

sewing

the

Be

machine

^

Make^sure

dangerousIfthe

the

machine

arrow.

suretouse

raised.

sewing

machine,

and

raise

stopper©when

that

stopper©is

stopperisnot

attach

the

sewing

working

securely

gripOsupplied

machineinthe

with

the

locked.Itwillbevery

locked

properly

with

direction

sewing

the

of

-

76

-

(38)

Removing

the

V-belt

STANDARD

Fig.

ADJUSTMENTS

5-38-1

Fig. 5-38-2

Fig. 5-38-3

77

-

1)

Remove

2)

Attach

it in

stopper

3)

Remove

screwOand

grip 0

the

directionofthe

O.

(Fig.

V-belt

now

supplied

5-38-2)

©.

(Fig.

TO

ADJUST

remove

belt

with the

arrow.Atthis

machineinposition,

5-38-3)

cover0.(Fig.

time,besuretouse

5-38-1)

andraise

RESULTS

ADJUSTMENT

OF

IMPROPER

-

78

-

STANDARD

ADJUSTMENTS

(39) Holding force of

Adjust

the

fixing

Plastic

feeding

frame

blank

stud

the

plastic feeding frame blank plate

position

of the plastic

feeding

Feeding frame

frameblank

plate.

Ball

catcher

Plastic

blank

Fig. 5-39-1

Plastic

Close

blank

contact

Plastic

frame

feeding

blank

holder

stud

F5g.

5-39-2

-

79

-

1)

Loosen

and

2)

Adjust

plastic

feeding

(Fig.

saewO•Attach

fixitproperly,

the

positionofthe

feeding

5-39-2)

feeding

frame

blankinthe

frame

HOW

TO

ADJUST

the

plastic

(Fig.

5-39-1,

plastic

blank

comesinclose

blank

stud,

directionA.Then

blanktothe

Fig.

5-39-2)

feeding

while

frame

pressing

feeding

blanksothat

contact

the

tighten

with

the

plastic

screws

frame

the

O•

RESULTSOFIMPROPER

adjustment

o

The

plastic

feeding

easily

drop

from

the

plastic

feeding

be set to the feeding frame

frame

feeding

blank

frame.

may

fail

The

to

-

80

-

(40)

Feed

plate

STANDARD

ADJUSTMENTS

0

Positioning

Feed

plate

(Feed plate for inverting: B2556215A00)

B2556215000

©

Fig. 5-40-1

0 Setscrew (2 pcs.)

Washer

(2 PCS.)

SM6060802TP

WP0611626SP

-

81

-

now

TO

ADJUST

RESULTS

ADJUSTMENT

OF

IMPROPER

1) Fit positioning pinO ^

feed plate with twoscrews0 . This

the feed plate.

determines

the position of

If you want to change the position of the feed plate, use the feed

plate with positioning pin O removed.

o The workpiece may slip duringsewing.

-

82

-

STANDARD

ADJUSTMENTS

Adjusting

(41)

Connect

1)

indicate 5 to 5.5

If the value indicated on air pressure gauge O is lower than 4 kgf/cm" (0.4 MPa), error indication

2)

the

pneumatic

components

quick-coupling jointO , and openair cock0 . At this time, air pressure gauge 0 should

kgf/cm^

(0.5 to 0.55 MPa). (Fig. 5041-1)

will be given, and the machine will stop. (Fig. 5-41-1)

The air pressure on the work clamp cylinder retracting side has been reduced to 1 to 1.5 kgf/cm" (0.1 to

3)

0.15 MPa) and the feeding frame can be lowered by hand. (Fig. 5-41-2)

The needle knob of speed controller (for controlling the work clamp cylinder) is fixed by the nut at the

4)

position where the knob is turned in the reverse direaion by one revolution after it has been securely

tightened. (Fig. 5-41-3) The needle knob of speed controller (for controlling the intermediate prcsser cylinder) is fixed by the nut

5)

at the position where the knob is turned in the reverse direction by five revolutions after it has been securely lightened. (Fig. 5-41-4)

o

j

N'umbeq

IInput

UoM

^

1 Function

0 0 o

For controlling clamp

cylinder (left)

the

work

1~1.5kgf/cia 0

For

Fig. 5-41-1

Fig. 5-41-2

controlling

cylinder (right)

the

work

Solenoid

valves (asm.)

Intermediate

cylinder (asm.)

presser

-

83

-

HOW

TO

ADJUST

1)

Connect

and fix it withcableclip

2)

Connect

O of thejoint.

3)

Open

©byturningitso

5.5

the pressure value.

4)Ifthe

running

*

The

push

[Caution]

After

that it indicates 5 to 5.5

sure

5)

Under

©of

valve asm. Connect a commercially available pressure gauge.

(Fig. 5-41-2)

Treadle

needle

pressure

(0.1to0.15

©,

41-2)

6)

Adjust

"STANDARD

using

7)

Remove

the

air

female

air

cock©,pullitup

kgf/cm"

(0.5to035

compressed

while

indicating

air

pressure

the

button

making

that error indication

the

sewing

pressure

the

feeding

knob

gauge

MPa).

and

connect

needle

nut

©.

the face

Adjust

needle

"STANDARD

using

nut

©.

supply

hosetoquick-coupling

®.

side

O of

the

quick-coupling

and

that

the

air

pressure

MPa).

Then

air

pressureistoo

error0on

willbe0

© .

adjustment,

mode,

reducing

kgf/cm"ifyou

set airpressure

kgf/cm®

{Aj

goes

remove

valveOthatisfixedonthe

frame

switch

pressure

reducing

then

adjust

press

low,

the

(0.5

out.

the

air

five

valve©,and

joint

jointtomale

air

the

machine

panel.

close

to 0.55

MPa),

hosebypressing

timesormore.

connectedsothatitindicjites1to

Then

fix

the

air

hose

which

knob©of

ADJUSTMENTS

(Fig.

plate.

knob©of

ADJUSTMENTS

(Fig.

speed

5-41-3)

speed

5-41-4)

knobatthat

has

(41)-4)."

position

been

removed.

Thenfix the

Then

(female)

adjusting

Jcnobtomaintain

air

cock©and

gauge

1.5

fix

side

knob

will

stop

and make

section

solenoid

Then

adjust

the

kgf/cm

using

(Fig.

knob

the

knob

O

turn

nut

5-

RESULTSOFIMPROPER

ADJUSTMENT

1)

The

work

clamp

mechanism

intermediate

malfunction.

The

machine

showing

12)

The

machine

the pressure of the air source. The

machine

showing pressure

operating

(0.5 to 0.55

13)

The

appropriate

work

14)

The

come

may

insufficient speed.

15)

The

move

maybeproduced

presseris actuated.

I

[Caution]

Itis unnecessary to carry out Steps 2)

through to 5) in the

ADJUSTMENTS

machineisengagedinnormal

Note

describedinsteps3)through

coated

show

properly adjusted.

When

presser

mechanism

will stop runningwhile

error

indication

may

failtodetectadrop

will stop

error

indication

gauge

indicates

air

pressure

MPa)).

pressing

clamp

win notbe

feeding

frame

may

down

at the

appropriate

moveatan

intermediate

smoothly.Aheavy

that

with oil

that

setting

excessive

presser

while

(41)"aslongasthe

the

needle

resistant

they have already been

the

air

kgf/cm^besuretoclose

and

press

button©.(See

and/or

El•

running

El

normal

(5to

5.5

pressureofthe

obtained.

failtogoupor

speedorat

may

metal

the

intermediate

"STANDARD

knobs

white

pressure

air

Fig.

may

inj

while

kgf/cm"

speed.

It

an|

fail

to

noise

sewing,

and

nuts

4) are

paint

to

gaugeto01

cock

©,

5-41-1)

j

-

84

-

STANDARD

(42)

Connecting

the

pneumatic

components

The circuit diagram for the pneumatic system is as follows:

ADJUSTMENTS

Air

source

iZfi

Work

clamp

o

oo

W

n

s ®

bk

intennediate

presser

oo

J03R

_ j

V

J02

00

J01

\ n

\ 0 0

AA

<

-H

1

1-

- j

iZE

0

Fig. 5-42-1

Quick-coupling joint

0

Quick-coupling joint plug

Air

cock

©

RIter

0

©

0

regulator

d4

Air

tube

Pressure

Speed

controller (A)

Intermediate

Work

clamp

Work

clamp

Solenoid

Metn'rfold

Solenoid

d6

Air

valve

tube

reducing

socket

vdve

presser

cylinder

cylinder (right) cylinder (lett)

(asm.)

Barrel nipple

0

Double

0

-

85

-

branch

Rug

Elbow union (B)

Hose

nipple

Speed

controller (B)

Y-shaped

Hose

joint

elbow

tube

now

TO

ADJUST

RESULTS

ADJUSTMENT

OF

IMPROPER

Connect

diagram for the pneumatic system.

If

jointo In this

you

the

pneumatic

usean air

gun,

case,

components

you

may

remove

plug

connect

referring

to the

the06mmair tubeto

®.

circuit

o The work clamp mechanism and/or

intermediate presser mechanism may

malfunction. As a result,

machine

troublemay occur or the corresponding

components may become damaged.

-

86

-

DISASSEMBLY/ASSEMBLY

PROCEDURES

(43) Removing

the

handwheel

and

the

generator

stator

1) Loosen two setscrews O so that the handwheel is removed.

2)

Remove

two outer setscrews O of the generatorstator,and loosen the two innersetscrews.

3) Remove the generator stator.

Main

shaft

Marker

dot

No.

Generator

1

stator

D

o

Setscrew

Setscrews No. 2 Setscrews No. 1

No.

1

©

115-43-1

Setscrew

No. 2

Handwheel

(44)

1)

2)

Removing

Remove

the

wiper

and

the

wiper

the

connector.

two setscrews O which retain the wiper

solenoid installation plate. Then remove the wiper

solenoid (asm.)

Remove wiper solenoid locknut

3)

4)

O.

remove the wiper solenoid.

solenoid

Wiper

solenoid

bracket

Connector

Fig. 5-44-1

Wiper

solerK>id

©

-

87

-

CAUTIONSINDISASSEMBLY

1± 0. 5 i«n

M

Fig.5-43-2

CAUTIONSINASSEMBLY

o

When

installing

sure

that

with

marker

(Fig. 5-43-1).

o

When

fixing

setscrews

partofthe

correct the

handwheel).Atthis

clearance

and

the

mm.

(Fig.

the

generator

setscrews

No.1are

rotational

between

No.2are

dot

No.1on

the

handwheel,besure

locatedonthe

main

shaft

directionofrotation

the

handwheelsothatitis

5-43-2)

stater,

aligned

the

bracket

(observed

generator

time,

from

adjust

stator

U0.5

be

that

flat

the

of

the

Fig.5-44-2

Be

suretofix

by

applying

(Fig.

5-44-1)

I

When

installing

portion(Dof

aligned

(Fig.

5-44-2)

5

Wiper

shouldbefixedinthe

describedinthe

adjustments

solenoid

arrow©,and

the

bracketsothat

distances

wiper

LOCK-TITE

tightening

with

solenoid

wiper

plate

setscrewO.be

the

centerofthe

bracket

bracketinthe

determine

are

obtained.

solenoid

top

locknut

No.

242

solenoid

endofthe

needle.

setscrew

position

"STANDARD

(9)."

Press

the

direction

the

position

the

specified

(Fig.

5-44

paint.

sure

wiper

0

as

wiper

of

0

that

is

of

1)

-

88

-

DISASSEMBLY/ASSEMBLY

(45)

Removing

Loosen

1) Loosen two setscrews e and two

2)

the

setscrew

oscillating

O •

e

Remove the oscillating rock shaft backward.

3)

Remove setscrews 0 , and remove the crank

4)

rod and the oscillating rock.

rock

and

crank

setsaews

rod

Thrust

PROCEDURES

Osctllatng

rock

collar

Crank

Thrust

mounting

Oscillating

rock

shaft

rod

collar

base

(46)

Removing

Remove setscrews O •

1)

Remove the thread trimmer mounting base.

2)

Loosen setscrew 0 to release the solenoid bracket.

3)

Remove

4)

Remove locknut 0

5)

Remove

6)

Disconnect

7)

the

solenoid

thread

the

lead

thread

bracket.

trimmer

wireofthe

trimmer

solenoid.

mounting

thread

Fig. 5-45-1

trimmer

base

solenoid

and

the

from

Shuttle driver

thread

the

shaft

trimmer

connector.

solenoid

Thread solenoid

trimmer

Thread

tnmmer

solenoid

-

89

-

bracket

Fig. 5-46-1

CAUTIONS

IN

DISASSEMBLY

CAUTIONS

IN

ASSEMBLY

o Pay attention to the orientation of the cap of the crank rod.

Note that the thread trimmer solenoid lockouts are fixed using

the LOCK-TITE paint.

For

removing

the

thread

trimmer

solenoid

terminal

from

connector, see the solenoid connection diagram.

Thread

trimmer

mounting

/

' ,

base

Thread

solenoid

trimmer

the

o Be sure that the oscillating rock is free

from axial play,

oIfthe

o

oTofix

main

shaft

does not

correct the mounting position of the

thrust

collar

and

the

mounting base.

Fix

the

thread

trimmer

by

applying

defatting them,

bracket, arm

against

LOCK-TITE

the

thread

press

the

cam

thrust

solenoid

trimmer

tension

follower

turn

smoothly,

collar

No.

242after

solenoid

release

after

lockouts

shaft

fixing

the thread trimmer mounting base (Fig.

5-47-1).

through

mounting

(Fig.

clearance between the trimmer solenoid bracket

Then,

insertascrewdriver

base,

5-46-1).Atthis

and

thread

and

tighten

time,

the thread trimmer solenoid

trimmer

setscrew

adjust

the

o Forthe

mounting

ADJUSTMENT (16)."

adjustment

base,

referto"STANDARD

of the

thread

trimmer

0

Thread

trimmer

solenoid

bracket

Fig. 5-46-2

-

90

-

DISASSEMBLY/ASSEMBLY

PROCEDURES

(47)

Removing

the

tension

release

arm

components

1) Remove the thread trimmer mounting base. (Refer to "DISASSEMBLY/ASSEMBLY PROCEDURES (46).")

2)

Loosen

setscrewO •

3) Draw out the thread trimming cam shaft in the direction

of

the arrow (-»). Remove the reset

spring (large), reset spring (small), and the tension

release

shaft

arm.

4) Remove setscrews0,and then remove the cam

follower stopper.

Thread

trimming

Thread

trimming

Tension

reset

release

spring (large)

spring (small)

shaft

arm

(eism.)

Fig. 5-47-1

Cam

follower

Thread

cam

On

stopper

trimming

shaft

On

(48)

Removing

Remove the thread trimming cam shaft.

1)

the

cam

follower

(See "DISASSEMBLY/ASSEMBLY

PROCEDURES (47).")

Remove the throat plate.

2)

Remove

3)

the

X-Y

table.

(See "DISASSEMBLY/ASSEMBLY PROCEDURES (55).")

Remove the thread trimming link hinge screw.

4)

Pass

the

cam

5)

follower

under

the

while slightly bending it.

(asm.)

machine

bed

Cam follower (asm.)

Thread

link hinge

OS

trimming

screw

91

-

Fig. 5-48-1

Juki AMS-215C User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual