Mitsubishi PLK-2520A Instruction Manual

MITSUBISHI

Industrial

INSTRUCTION

Singie-Naedie Electronic

Sewing

MANUAL

Model

Lockstitch

Pattern

Machine

PLK-S5S0A

Sewing

Machine

'A180E102P01

A

MITSUBISHI

ELECTRIC

In

order

to

operate

the

sewing

machine

in

the

best

condition

at

all

times,

please

the

1.

2.

3.

4.

5.

6.

read

sewing

CONSTRUCTION 1

this

machine.

Instruction

Manual

-CONTENTS-

carefully

and

properly

handle

and

FEATURES

SPECIFICATIONS ^

3.1

3.2

INSTALLATION 8 PREPARATION

CONTROL

6.1

General

specifications

Replacement

BEFORE

SWITCHES

Switch

6.1.1

6.1.2

panel

Power SCALE

parts

AND

for

medium

STATING THE OPERATION

FUNCTIONS

ON

and

OFF 13

and heavy

switches

fabrics

maintain

2

^

12

13

6.2

6.1.3

6.1.4

6.1.5

6.1.6

6.1.7

Foot

6.2.1

6.2.2

PATTERN

SPEED

RESET/HOME

MIRROR

ERROR

switches

WORK

START

select

setting

IMAGE

indication

HOLDER

switch

6.3 Operation panel on machine

7.

6.3.1

6.3.2

6.3.3

6.3.4

6.3.5

OPERATION

7.1

Loading

7.2

Switch

COARSE/FINE

MOVE

±JOG

UP

STOP

switch

the

setting

switches

switch

FROM

on

switch

dial

select

switch

X, Y switches 1^

lamps

switch

head

select

cassette

switch

panel

1^

16

18

16

17

18

7.3

7.4

7.5

7.6

Switch Sewing STO ?

Operation

function operation

switch

checking

operation

procedure

and

checking

18 19 19

20

8.

9.

10.

CAUTIONS

HANDLING

9.1

9.2

9.3

9.4

9.5

9.6

9.7

9.8

9.9

9.10

9.11

9.12

9.13

9.14

9.15

9.16

9.17

9.18

9.19

9.20

9.21

ADJUSTING

10.1

10.2

10.3

10.4

10.5

10.6

10.7

10.8

10.9

10.10

10.11

ON

USE

THE

Installation

Winding

Threading

Thread

tension

Installing Installing Adjusting

Adjusting

Lubr

ication

Timing

adjustment

Adjusting

Thread

tension

Adjusting

Adjusting Adjusting

Adjusting Adjusting Adjusting Adjusting Adjusting

Adjusting

THE

Thread

Installation

trimmer

Connection

Knife

driving

Installation Installation

Adjusting

Hook,

bobbin

SEWING

the

the the

the

the the

the the the the the

the

THREAD

of

the

MACHINE

of

needle

bobbin

needle

bobbin bobbin

needle

bobbin

between

hook

bobbin

needle intensity

movable

thread hook

presser timing

needle

TRIMMER

mechanism

of

knife

shaft

of

air

of

trimming

knife

needle

synchronizer

length

case

and

HEAD

thread

case

thread

needle

position

thread

of

range

tension

oiling

rate

foot

of

presser

bar

stop

bracket

cylinder

cam

engagement

thread

of

needle

bobbin

tension

thread

of

discs

(UP)

and

with

tension

discs

motion

takeup

foot

kife

driving

thread

spring

motion

position

bracket

release

end

and

spring

crank

hook

after

motion

unit

trimming

23

24

25

26

27

28

30

31

32

33

35

36

37

38

39

40

41

42

44

45

11.

MAINTENANCE AND CHECKING

46

12.

13.

14.

11.1

11.2

11.3

11.4

12.1

12.2

12.3

Adjusting

Greasing

Pneumatic

Maintenance

CONTROL

LIMI-STOP

Grounding Fuses

REPLACING

AUXILIARY

14.1

14.2

14.3

14.4

14.5

Repeat

Home

turned

Home

Thread

Adjustment

the

SYSTEM

and

THE

PROM

FU^TCTIONS

function

position

on

position

trimming

the

XY

system

of

machine

Z

motor

for

prevention

magnetic

return

of

fabric

table

breakers

cancel

head

of

malfunction

cancellation

when

HALT

feed

timing

when

switch

due

the

is

to

noise

power

is

depressed

46

47

49

50 50

52

53

54

15.

16.

14.6

15.1

15.2

Speed

WIRING

select

DIAGRAM

General

LIME-STOP Z

TROUBLESHOOTING

wiring

function

diagram

motor

wiring

55

56

57

60

-fsmmt

•

itches

sure)

2.

(1)

FEATURES

Easy

pattern

change

Pattern

PROM

stored

Memory

device

PROM

(2)

High-performance

Stepping

stitching

(3)

Unique

The movement,

given

(4)

Changeable

Pattern

XY

table,

data

cassette.

in

size

PTN-4000,

cassette.

motors

presser

part,

start

can be

PROM.

stored

By

using the

can be expanded up

PTN-4000AorPTN-IOOO-OL

work

holder

and

belts

and

foot

thus

applique

pattern

or

increased

foot

moves

preventing

position

located

capable

up

and

start

may

to

productivity,

any

up

data

mechanism

used

of

and

down,

floating

heavy

position

be

determined

desired

to

10

patterns

input device,

to

4,000

to

drive

moving

being

of

material.

spot,

within

stitches

1,000

pattern

when

data

the

stitches

can be

data

is used together with optional

the

work

vertically

synchronized

fabrics

by

the

and

position

holder

securely

assure

with

detector

needle

holding

in

the

easily

input

high-speed

bar

a

on

the

(5)

(6)

(7)

(8)

(9)

Finely

Size

±4%

Easy Stitching

stitch)

By from

Various

Error

adjustable

of

pattern

independently

stitch

operation.

continuously

any

safety

lamps

Compact and

8-bit

Automatic

Powerful

Since

microcomputer

exceptionally

aligning

can

part

are

reliable

thread

pattern

stored

in

be

suspended

operating

of

pattern

functions

provided

trimmer

in

X and Y

design

is

used

permits

large

size

PROM

(SCALE

can

directions

HALT and

iJOG

are

facilitating

hook

switch

amended

switches,

possible.

in

the

failure-free

is

function)

be

finely

by

means

and

JOG

or

aligned

pattern

tracing

full-electronic

control

used,

circuit.

frequency

adjusted

of

switch

checking

back

control

thread

to

within

digital

in

inching

of

trouble

trimming.

replace

switches.

(stitch

and

stitching

if

system

the

by

occurs.

bobbin

will

be

decreased.

-2-

(10)

Mirror

image

(11)

With

Eacy

simple

machine

switch

maintenance

LIMIT-STOPZmotor

is

used

The

table

XY

to

table

cover.

drive

is

easily

operation,

equipped

the

sewing

symmetrical

with

machine,

accessible

clutch

requiring

for

pattern

featuring

almost

maintenance

is

easily

almost

permanent

no

maintenance.

by removing

stitched.

the

XY

life

-3-

3.

SPECIFICATIONS

3.1

General

specifications

Stitching

Sewing

Needle

Take-up

Applicable

Work

Presser

Hook

Bobbin

holder

Bobbin

type

machine

bar

stroke

lever

needle

foot

case

lift

stroke

Single-needle

lockstitch

Model DY-359-22,

equipped

40

ram

72

mm

DP X 17

70mm

10

mm

4 -

Full-rotation,

(large

Equipped

Steel

#23

(Standard),

10

mm

type

bobbin

(set

with

(Standard)

for

racing

for

Automatic

adjustable

to4mm

automatic

thread

at

shipping)

lubrication

trimmer

prevention

trimmer

use)

spring

use

Lubricat

Applicable

Thread

Control

Sewing

Max.

Stitch

Sewing

sewing

ion

trimmer

system

area

length

pattern

oil

speed

Manual

Screw

White

Rotary

and

Full

incorporated

oiling

pump

spindle

scissoring

right

electronic,

for

fied

lubrication

oil,

by

blade

microprocessor

control

240mm x 200mm (X - Y

stepping

2,000

0.2

Pattern PROM

Maximum

motor)

spm

(intermittent

-

6.2

mm

is

reproduced

(replaceable).

10

pattern

#2

left

dual

with

(1,000

of

movable

axial

feed)

data

stitches)

hook

drive

stored

knife

by

in

can

be

stored

-4-

in

each

PROM.

Maximum

4,000

stitches

can

be

stored

with

Sewing

Return

START

Work

operation

to

operation

holder

home

position

optional

Pattern

user's

any

desired

This

function

tions

The

work

tion

the

Stitching

in

needle

depressed

The

work

HOLDER

first

again.

PROM,

start

discretion

is

out holder

X

axis

stops

starts

to

holder

switch

time,

position

spot.

is

of

"ON".

is

and

as

used

alignment. returns

and

Y

at

UP

when

goes

pressed

goes

may

home

if

axis

position.

START

down

up

position

X

to

direction

when

down

when

be

set

and/or

the

switch

for

pressed

home

the

at

or

Y

posi

after

is

WORK

the

down

HALT

Pattern

adjustment

operation

(SCALE

Pattern

Sewing

size

function)

•

select

speed

fine

function

setting

Sewing

depressing

After

be

moved

pattern

By

depressing

sewing

Size

of

finely

(±1%

increment)

independ

Any

one

be

selected.

Sewing

within

(about

operation

the

suspension,

stitch

in

operation

pattern

adjusted

ent

of

speed

a

range

200

the

HALT

inching

the

ly.

10

patterns

can

from

spm

can

be

switch.

by

stitch

operation.

START

can

be

stored

within

in

X

axis

be

set

180

increment)

suspended

the

switch

started

in

a

range

stored

in

spm

work

along

PROM

and

nine

to

holder

the

again,

again.

can

of

Y

axis

in

2,000

by

+4%

PROM

steps

can

sewing

the

be

can

spm,

-5-

Stitch

correcting

function

Stitches

can

be

corrected

or

amended

by

Test

Mirror

Error

Main

Work

Power

function

image

indicator

drive

holder

source

motor

moving

forward

the

or

operating

This

holder

A

Stitches.

Trouble

LIMI-STOP

function

movement

symmetrically

or

identified.

Pneumatic

Frequency(Hz)

50

60

work backward

±JOG

is

failure

Z

motor

Type

Voltage(V)

holder

along

switches.

used

without

turned

is

(5kg/cm2)

200,220, 380,415

stitch

the

to

check

actual

over

patter

immediately

INPUT(KVA)

by

stitch

pattern

work

sewing.

1

can

by

be

Phases

Three

Phase

3.2

Dimensions

Weight

Replacsnent

Name

of

Thread

tension

part

parts

Specification

for

regulator

(mm)

medium

1,150 1,200

included

350

head)

Table

and

For

lication

mm mm

kg

(including

3.1

heavy

medium

LS^

standard ap-

(width) (height)

in

the

fabrics

fabric

(option)

x

1,020

(cotton

height)

weight

mm

(length)

stand

of

machine

For

heavy

(standard)

AI31C513G01

is

fabric

x

not

(W346065G02)

Pretensioner

-6-

(W487036G03)

Needle

plate

(furnished)

<Z53

Presser

Hook

Bobbin

foot

case

Needle

hole

—

diameter

Outer

diameter

(W349841H02)

^3.5

(Inner

(furnished)

dia.:

(A130C201H02)

^2)

(W349841H01)

«54.5

(Inner

dia.:

(A130C201H01)

For

DY

^3)

(P975040X02)

For

DY

(A190D175P01)

Table

3.2

-7-

4.

INSTALLATION

4.1

4.2

4.3

4.4

Caster

For

transference

caster.

Remove

(standard

Loosen

remove

The

XY

Loosen

with

holder

is

locked

the

accessories).

wing

the

table

four

furnished

(Fig.

eye

bolts

XY

table

cover

hexagon

4.1).

when

of

on

is

its

the

sewing

to

replace

the

cover.

provided

socket

key

Hexagon

head

lever

left

head

wrench

bolt

machine,

and

with

socket

is

pressed

them

right

bolts,

and

down.

pull

with

furnished

sides

detachable

used

turn

up

the

lever

flathead

of

the

XY

to

hinge

secure

(Fig.

the

counter-clockwise

of

table

work

each

screws

1.1),

the

cover

holder,

and

work

4,5

Work

Place

(standard

it

through

the

holder

machine

accessory)

the

cable

head

to

hole

on

the

Fig.

the

table.

operation

in

the

4.1

table.

Connect

panel

on

the

20-circuit

machine

flat

head,

cable

passing

The

synchronizer

cable

and

Fig.

tension

4.2

release

20-circuit

connector

should

flat

be

cable

also

4.6

passed

Loosen

cover

® The

20'-circuit

and

Caution:

through

the

six

(Fig.

1.1).

connectors

flat

the

power

The

tensed.

20-circuit

the

right

of

cable

power

flat

cable

side

hole

cover

synchronizer

from

should

cable

Tension

cable

Synchronizer

cable

(Fig.

4.2)

mounting screws

cable,

the

operation

be

installed

should

connector

be

release

tension

as

installed

to

release

panel on

shown

so

remove

the

in

Fig.

that

the

cable,

machine

4.3.

it

cannot

right

head,

Power

side

be

cable

o

motor

10

Install

nun

Fig.

pully.

when

the

4.3

it

View

V-belt

is

Control

between

depressed

when

tension

box

right

the

at

side

machine

should

its

cover

be

center

head

that

of

is

pulley the

the

removed

and

belt

span

LIMI-STOP Z

is

sunken

by

finger.

by

about

Caution:

0

Take

out

Care

V-belt,

the

should

foot

be

taken

switches

to

from

avoid

the

contact

pocket

on

of

the

any

front

cable

with

cover

the

of

control

outside

o

Install

Air

piping

box,

(Fig.

the

(See

pass

4.4).

Foot

furnished

Fig.

their

switch

4.6)

cables

Fig.

cotton

through

4.4

stand

Control

on

the

bottom

box

table

to

(Fig.

brought

1.1).

them

Install

through

tube

joint.

Air

pressure

After

tube,

Speed

permitting

the

right

the

air

control

the

setting,

push

the

controller

speed

Rear

Quick

side

tube

should be

knob

be

sleeve

is

provided

control

cover

Sleeve

tube

hole

and

sure

of

Air

joint

cover

to

(see

set

to 5 kg/cm^.

turn

to

quick

to

of

cylinder.

tube

the

Fig.

it.

lock

tube

regulate

machine,

1.1)

the

knob.

joint

and

To

and

air

Pressure

Filter

pass

connect

set

To

pull

supply

regulator

furnished

it

air

pressure,

disconnect

the

to

control

gauge

to

tube

each

air

the

outward. cylinder",

knob

tube

quick

pull

air

the

Fig.

4,5

View

when

the

rear

inspection

window

is

removed

Filter

control

6x6

(black)

regulator

knob

T

CB

Tube

6x4

(black)^

joinc

Tube

UYD6-4

joint,

I

!onc2oller

Solenoid

(050-4E-2I-70DC24V)

4x3

(opaque)

Tube

TS6-H5

valve

joint

Air

cylinder

Tube

joint

TS6-M5

,Air

(for

sylinder

presser

work

food)

holder)

Tube

joint

TL6-M5

4.8

Turn

tighten

the

work

hexagon

holder

socket

Hexagon

head

until

bolt

head

socket

Fig.

it

bolts

Solenoid

4.6

strikes

(Fig.

valve

the

4.7).

Positioning

•J

^

6x4

Tube

1/

jf

(black)

positioning

- '

Air cylinder

(^of

and

thread

trinmer)

fully

Fig.

4.7

4,9

Install

the

XY

table

cover

(see

-11-

Fig.

1.1).

5.

PREPARATION

5.1

5.2

5.3

Make

Move

sure

and

BEFORE

the

PROM

locate

STARTING

power

cassette

the

source

work

THE

has

holder

OPERATION

meets

be

the

properly

by

hand

specification

put

into

so

that

the

(see

PROM

needle

Table

cassette

is

3.1).

slot.

always

5.4

5.5

5.6

found

Make

Check

o

Locate

To

the

mark

®

Turn

o

Depress

(brack)

o

Turn

that

UP

®

Depress

within

sure

the

sure

the

rotational

the

needle

locate,

align

machine

(B)

on

the

to

the balance

the

needle

position.

the

needle

air

pressure

arm

with

the

pulley

power.

WORK

lower

bar

UP

switch

frame

comes

of

at

is

direction

bar

to

UP

timing

HOLDER

the

wheel

the

work

is

mark

(Fig.

switch

by

away

of

first

the

work

the

5 kg/cm^.

of

position.

(A)

timing

5.1).

holder.

hand

^

so

from

operation

holder.

center

the

on

the

of

the

LIMI-STOP

jJ

iw

®

panel

presser

Z

motor

^

® " |

on

Fig.

the

foot.

as

-j

r.

,

5.1

machine

follows:

head.

The

5.7

5.8

sewing

UP

When

counter-clockwise,

o To

connection

Before

switch

The

position

machine

position.

the

change

disconnecting

and

dimensional

is

will

LIMI-STOPZmotor

rotational

between

make

sure

relationship

shown

in

start

view

direction

two

the

Fig.

of

power

pilot

and

from

three

5.2.

Work

stop

is

properly

the

of

cable,

lamp

between

holder

Work

with

balance

the

wires.

does

be

the

frame

holder

the

wired,

wheel

motor,

sure

not

work

needle

the

side,

change

to

turn

light.

holder

Home

position'

bar

balance

power

off

and

located

wheel

cable

the

its

power

home

at

rotate

the

Fig.

5.2

6.

CONTROL

SWITCHES

AND

FUNCTIONS

6.1

X

SCALE

Y SCALE

PATTERN

Switch

POWER

select

panel

OFF

setting

switch

dial

switch

POWER

dial|

ON

switch

-

SPEED

setting

dial

Pilot

AERROR

I

(ERROR

I

ERROR

I

(ERROR

I RESET/HOME

1-

MIRROR

^MIRROR

lamp

indication

1)

indication

2)

IMAGE

(PL)

select

Y

X

lamp

switch

6.1.1

6.1.2

(1)

(2)

(1)

(2)

POWER

When

lamp

When

lamp

position,

SCALE

Size

real

independently.

This

ON

the

(PL)

the

goes

switches

of

size

scale

pattern

Fig.

and

OFF

POWER

lights.

POWER

out.

(stored

adjustment

6.1

ON

switch

OFF

switch

The work

stored

in

Switch

in

PROM)

is

panel

(green

(red

holder

PROM

inXaxis

made

pushbutton)

goes

up when

can be

adjusted

direction

in

reference

is

depressed,

is

depressed,

it

within

andYaxis

to

the

is

at

home

the

lowered

±4%

of

direction

position.

pilot

the

Cautions

1;

After

the

fine

adjustment

of

pattern,

test

should

be

6.1.3

6.1.4

6.1.5

2:

PATTERN

Any

one

select

of

patterns

"0"

to

"9").

SPEED

Sewing

(See

RESET/HOME

setting

speed

Table

performed

the

work

(Refer

Sewing

stitched.

(Refer

desired

by

operating

dial

can

8.1.)

select

to

speed

to

switch

be

to

holder

para.

pattern

set

switch

check

may

the

frame.

6.3.3.)

8.1.)

PATTRN

by

be

can

this

that

reduced

be

dial.

the

selected

select

entire

when

switch

pattern

enlarge

from

pattern

10

different

(setting

is

within

is

ranges

from

(1)

(2)

6.1.6

RESET When

stopping

Causion;

HOME

Do

not

is

going

When

automatically When needle

to

In

MIRROR

A

direction

The

holder

pattern

switch

IMAGE X, Y

can

symmetrically

by

operating

setting

(MOVE

...

this

set

on.

this

the

automatically

the

home

usual

switches

does

para.

toggle

all

movements.

the

switch

toggle

returns

needle

position

operation,

these

not

6.3.2.)

switch

to

switch

position

the

turned

switches.

affect

and

to

goes

(see

is

RESET

is

the

is

up

Fig.

switch

over

axial

work

set

upward,

position

set

downward,

home

other

and

5.2).

is

in

X

movement

holder

position. than

the

work

set

direction

traverse

the

while

UP

at

of

brake

stitching

the

position, holder

HOME

and

the

direction

work

position.

Y

work

works

holder

the

returns

at

home

Since

mirror

ignor

ed.

return

the

image

mirror

(refer

switch

image

to

conditions

setting

para.

-14-

during

6.1.5).

are

initially

stitching

or

set, test

change operation

of

is

Pattern

changes

as

shown

in

Fig.

6.2.

6.1.7

(1)

(2)

ERROR

When

at

UP

When

Y

(D

Fig.

6.2

indication

an

error

lamp

position

ERROR1lights

stored

n=I>

Use

data

correctly

ERROR1lights

resulting

lamps

and

are

from

lights,

proceeding

in

green

improper.

programmed

in

red

excessively

the

...

sewing

of

...

Stitch

operation

Sewing

PROM

enlarged

1

2

3

4

machine

mattern

cassette.

length

pattern.

X

Positive Positive

Negative Negative

Positive

stops

becomes

is

with

impossible.

is

not

larger

Y

Positive

Negative

the

stored

than

needle

or

6.2

mm

(3)

(4)

(5)

(6)

When

ERROR2lights

sewing

XY

11.)

cij>

table

.

Move

using

area.

position

the

MOVE

ERROR2lights

i=0>

Turn

off

ERROR1and

position

1=0

Set

the

work

machine

when

holder

ERROR1and

is

blocked

in

green

The

movable

detector

work

holder

function

in

red

the

power

ERROR2light

the

power

RESET/HOME

will

return

stops

with

ERROR2flicker

or

V-belt

leaves

...

(refer

...

and

is

select

the

The

range

and

into

PROM

properly

in

turned

to

needle

in

pulley.

detector

the

to

cassette

red

switch

the

red

work

of

movable

para.

...

on.

at

holder

work

load

The

to

home

UP

...

holder

plate

range

6.3.2).

is

PROM

needle

"HOME"

position

position.

Motor

moves

not

or

beyond

is

set

(refer

of

work

loaded.

cassette.

is

not

position.

and

sewing

by

to

section

holder

at

the

machine

the

UP

The

sewing

1=0

(7)

When

Turn

ERROR1and

setting

c=0

Operate

off

the

ERROR2light

is

changed

the

power,

while

remedy

the

RESET/HOME

-15-

in

select

and

green

2nd

turn

.,.

home

switch.

on

PATTERN

position

the

power

select

is

used.

again.

switch

6.2

Foot

switches

(Fig.

1.1)

6.3

6.2.1

6.2.2

WORK

The work

depressed,

START

The

depressed.

It

and

Operation

HOLDER

sewing

does

the

+X

switch

not

needle

panel

-X

switch

holder

and

machine

start,

on

MOVE

goes

is

machine

+Y

down when

up

starts

however,

not

UP

-Y

COARSE

when

position.

head

FINE

the

stitching

if

the

+^0G

WORK

switch

work

when

HOLDER

is

depressed

the

holder

UP

switch

START

is

STOP

again.

switch

not

(brack)

(red)

at

DOWN

is

position

6.3.1

6.3.2

coarse/FINE

With

0.2

at

"COARSE"

MOVE

When

this

mm

switch

every

stitching

MOVE

The

follows:

+X:

-X:

switches

movement

Rightward

Leftward

+Y: Upward

-Y:

Downward

select

switch

when a

position,

is

held

setting

starts,

of

movement,

switch

set

the

WORK

at

MOVE

the

down.

is

changed

presser

HOLDER

viewed

Fig.

"FINE"

switch

work

viewed

6.3

position,

is

holder

from

foot

resulting

from

depressed.

goes

"COARSE"

lowers.

from

the

front

the

on

MOVE

front

work

holder

With

moving

to

"FINE"

switch

(leftward

(rightward

(downward

(upward

this

as

long

before

operation

stitching)

moves

switch

as

pattern

stitching)

by

set

a

is

as

For

this

position

operation, and

DOWN

the

position

needle

respectively.

-16-

and

the

work

holder

should

be

at

UP

6.3.3

(1)

+JOG

TEST

switches

function

(2)

Only

the

speed

returned

When

opposite

When

end

position.

When

the

of

the

position,

START

During up

for

ing

operation).

Stitch

For

correction

work

while

to

-JOG

direction.

+JOG

pattern,

-JOG

switch

the

work

correct

it

test,

holder

the

+JOG

the

home

switch

the

switch

stops

is

depressed),

holder

function

or

advances

switch

position.

is

work

is

there

the

presser

traversing

amendment

in

is

depressed,

held

down

holder

held

down

permitting

or

foot

(the

of

the

held

the

and

goes

and

test

goes

work

stitches,

stitching

down

work

the

up

and

the

start

(the

down

after

work

of

+JOG

holder

the

direction

the

holder

then

holder

stitching

switch

for

moves

work

moves

reaches

returns

reaches

is

stitching,

without

holder

at

a

fixed

holder

in

the

to

the

(xi7hen

the

operated).

and

stitch

can

be

is

home

goes

moved

6.3.4

6.3.5

in

forward

by

operating

depressing

This

UP

When

than

When

in

that

test

switch

to

the

This

position.

STOP

inching

the

operation.

the

UP

function

switch

the

replenishment

or

the

motion

work

sewing

position,

position.

sewing

backward

+JOG

STOP

holder

machine

can

be

machine

of

bobbin

direction

or

switch

is

same

moves

this

used

-JOG

(refer

as

stops

switch

only

must

thread,

switch

that

at

with

when

be

stitch

to

of

a

speed

the

is

the

stopped this

by

stitch

after

para.

stitching

6.3.5).

test

lower

needle

depressed

work

for

switch

function,

than

at

a

to

holder

thread is

used.

along

is

the

position

locate

is

breakage

the

suspended

but

differs

speed

the

at

the

pattern

in

other

needle

DOWN

or

for

by

Stitching

It

is

-JOG

also

switch.

can

possible

be

resumed by

to

move

depressing

the

work

-17-

the

holder

START

by

operating

switch

(red).

the

+JOG

or