Mitsubishi PLK-0604 Instruction Manual

MITSUBISHI

Industrial

Sewing

INSTRUCTION

Single-Needle

Electronic

Model

Bar

Machine

MANUAL

PLK-0604

Lockstitch

Tack

Machine

A

MITSUBISHI

ELECTRIC

In

ordertooperate

carefully

and

properly

the

sewing machine in

handle

and

maintain

the

sewing

best

condition

machine.

at all times, please read this Instruction Manual

Sections 1 9 describe

technical

1.

CONSTRUCTION

2.

SPECIFICATIONS

2.1

2.2

3.

INSTALLATION

information.

Specification

Replacement

3.1 Installing

3.2

Installing

3.3

Connection

3.4

Work

Lamp

3.5

Power

Cable

3.6

Installing

Parts

the

Table

the

Machine

of

Leads

Connection

the

Work

Leads

the

handlingofthe

for

Light

and

sewing

-

CONTENTS

machine

-

and

Sections

10

14 describe

the

detailed

Heavy Fabrics 5

Head 8

Holder

Pedal 11

1

2

7

9

10

4.

PREPARATION

5.

CONTROL

5.1

5.2

5.3

5.4

5.5

5.6

5.7

5.8

5.9

5.10

5.11

5.12

5.13

6.

OPERATION

6.1 Inserting

6.2

6.3

Switch

POWER SCALE

PATTERN SPEED ±JOG

RESET/HOME

STOP/MOVE

Error

Work

Work HALT

START

Switch Switch

AND

CAUTIONS

SWITCHES

Panel

ON

Switch

Indication

Holder

Switch

the

Setting

Function

AND

and

POWER

Switch

Pedal

Lift

Switch

(Foot

Switch)

PROM Cassette 17

on Switch Panel 17

Checking 17

THEIR

OFF

BEFORE

FUNCTIONS

Switches

THE

USE

6.4 Sewing Operation 18

6.5

HALT Switch Operation 18

6.6 Operation Procedure and Checking 19

12

13

13 13

14 14 14

15 15

15

15 16

16

7. CAUTIONS ON USE 22

8. NAME

9.

HANDLING

9.1

9.2

9.3

9.4

9.5

OF

MAJOR

THE

InstallationofNeedle

Threading

Removing Lubrication

the

with

PARTS

SEWING

Needle

Bobbin

Inner

Silicone

OF MACHINE HEAD 23

MACHINE

HEAD

Thread

Hook

Oil

9.6 Adjustment of Pressure 26

9.7 Replacingthe Work Holder Clamp Frame 26

9.8 Replacing the Feed Plate 26

9.9 Adjusting the Presser Foot 27

9.10 Adjusting the Wiper 27

9.11

WindingofBobbin

Thread 28

9.12 Thread Tension 28

9.13 Lubrication 29

10.

ADJUSTMENT

10.1

Machine

AND

Head

MAINTENANCE

10.1.1 Adjusting the thread winder 30

10.1.2 Adjusting the height of

needle

bar 30

10.1.3 Adjusting the driver 30

10.1.4 Adjustingthe hook 31

10.1.5 Adjusting the thread guide (above hook) 32

10.1.6 Adjusting the work holder pressure 32

10.1.7 Replacing

10.1.8 Adjusting

10.1.9

10.1.10

Adjusting

the

work holder clamp frame 32

the

position of work holder solenoid 33

the

presser

foot

the

thread

trimmer

10.1.11 Adjusting the trimmed thread tail length 36

10.1.12 Adjusting the thread release (tension disc pressure) 37

10.1.13 Adjusting

10.1.14 Adjusting

10.1.15

10.1.16

Adjusting

10.1.17 Adjusting

10.2

Control

Box

the

wiper 37

the

needle bar

the

home

the

X-Y

the

belt tensions (X-Y table) 41

position

table

stop

(UP) position

10.2.1 Cooling fan 42

10.2.2

Fuse

10.2.3 Magneticbreaker 42

10.3

LIMI-STOPZ

10.3.1

10.3.2

10.4

Filters

Motor

PreventionofMalfunction

Motor

DuetoNoise,

and

Grounding

24

24 25

33

35

38

39

40

42

43

44

11.

12.

REPLACING

AUXILIARY

THE

PROM

FUNCTIONS

12.1 SWi

12.1.1 Repeat

function

12.1.2 Home position return cancellation at power turning on

12.1.3 Enlargement/reduction (SCALE) cancellation 47

12.2 SW2 47

13.

WIRING

DIAGRAMS

13.1 General Wiring Diagram

13.2

Motor

13.3

Stepping

13.4

Synchronizer

13.5

Start

13.6

SolenoidsinMachine

13.7

HALT

13.8

Stepping

13.9

Flat

Motor

switch,

Switch

cable

outer

Motor

connection

presser switch 51

Head

Position

Detector

table

45

46

49

50

51

52

14.

TROUBLESHOOTING

54

2.

SPECIFICATIONS

2.1

Specification

Table

2.1

Stitching

Needle

bar

Take-up

Applicable

Wiper

Work

holder

Presser

foot

Presser

foot

Hook

Bobbin

Applicable

case

Lubrication

type

stroke

lever

needle

oil

stroke

lift

stroke

system

Single-needle lockstitch

41.2

mm

68

mm

DP X 17

With

15

10

4 —10mm

Oscilating

Bartack

Manual

White

#16

(Standard)

wiper

release

mm

mmorhigher

(setto4

automatic

bartack

type

aluminum

oiling

spindle

oil.

switch

mmatshipping)

lubrication

type

No.

bobbin

2

Thread

Control

Sewing

Stitch

Sewing

trimmer

system

area

Max. sewing

Returntohome

Operation

speed

length

pattern

operation

START

position

Combinationoffixed

Full

electronic,

60X40

2,000

spm (intermittent

0.2—6.2

Sewing

replaceable.

pattern

mm

(X-Y

mm

microprocessor

dual

is reproduced

Maximum10patterns

Maximum

Operation

This

sewing.

returnstothe

simultaneously.

home

Sewing

switch

4,000

starts

function

After

position

starts

(foot

stitches

from

is used

the

needle

home

(The

detecting

from

the

switch)isdepressed.

knife

and

movable

incorporated

axial drive by

feed)...

with

(1,000

stitches)

canbestored

home

position

knife

control

stepping

(for feed length less

data

stored

canbestored

with

optional PROM.

and

endsatthe

whenXand/orYpositions

stopsatUP position,

position

home

plate)

home

in X axis

position

and

Y axis

canbechanged

when

START

(plane

scissoring)

motors)

than

2 mm)

in PROM. PROM is

in each PROM.

home

position.

deviate

the

work

during

holder

directions

by adjusting

the

-2-

Work

holder

First

depressionofwork

go

down

and

another

holder

lift

switch

causes

depression causes going up.

the

work

holder

to

HALT

Scale

Pattern

Sewing

Stitch

Test

Error

Main

function

select

speed

correcting

function

indicator

drive

setting

motor

function

Sewing

After along

By depressing

Pattern

tion

The

increment.

Any

Sewing to

Stitches

stitchbystitch

JOG

This

Pattern

operation

the

suspension,

the

sewing

storedinPROM

and

Y axis

scale

canbeset

oneof10

speed

2,000

spmatabout

canbesuspendedbydepressing

pattern

the

START

direction

patterns

canbeset

canbecorrectedoramendedbymoving

forwardorbackward

switch.

function

is usedtocheck

checking

is also possible.

Troubleorfailure is

LIMl-STOP Z

motor

the

work

holder

canbemoved

in inching

switch,

canbeenlargedorreduced

operation.

the

sewing

independently.

within

a range

from0%to

canbeselected.

in nine

200

immediately

(for

steps

within

spm

increment.

along

stitching

operationatlow

identified.

sewing machine)

the

HALT

stitchbystitch

canbestarted

in X

axis

199%at1%

a range

the

from

the

work

patternbyoperating

speed.

switch.

again.

180

holder

direc

spm

Work

holder

Permissible

Maximum requirement

Dimensions

Weight

voltage

power

regulation

source

Solenoid-driven

±10%ofrated

800VA

535

mm (width) x

standisnot

135

kg (Total weight including weights of head

type

voltage

1,200

includedinthe

mm (length) x

height)

1,110

mm (height)

and

table)

(cotton

-3-

Table

2.2

LIMIT-STOP Z

motor

specification

Drive

motor

Model

Output

Phases

Poles

Voltage

Frequency

(W)

(V)

(Hz)

Table

2.3

Power

100,

supply,

Single

120,

50

table,

CA-Z402E

400

phase

Two

poles

200,

220,

motor

and

230,

60

control

240

box

CB-Z402E

Three

Two

200, 220,

50

400

phases

poles

380,400,415

60

Phases

Single

Three

Power

Voltage

220-240

400-415

supply

100

110

120

200

220

380

(V)

Frequency

50/60

60

50

50/60

60

50

(Hz)

Table

TLK-A302-P61

TLK-A362-P62

TLK-A352-P61

TLK-A352-P62

TLK-B302-P61

TLK-B362-P62

TLK-B352-P63

Model

Motor

CA-Z402E

CB-Z402E

Control

PLK-60-A10

PLK-60-A11

PLK-60-A12

PLK-60-A20

PLK.60-A23

PLK-60-B20

PLK-60-B22

PLK-60-B38

PLK-60-B40

box

2.2

Replacement

parts

for

light

and

heavy

fabrics

Table

2.4

Nameofpart

Thread

Needle

Presser

Inner

Hook

tension

plate

foot

hook

retainer

regulator

E^-pza

Specification

(Needle

.diameter)

(Outer

^

diameter)

hole

For

light

fabric

01.6

BA140D513H01

03.5

(Inner

dia.;

BA130C201H02

02.5)

For

medium/

heavy

fabric

(Standard)

For

DB

standard

W346065G01

02.2

BA140D513H02

04.5

(Inner dia.:

BA130C201H01

Standard

P975044X01

Standard

W349796H02

03.5)

For

heavy

fabric

For

heavy

fabric

W346065G02

02.6

BA140D513H03

For

heavy

fabric

P975043X01

For

heavy

fabric

W349796H03

Note:

2.3

Parts

for

light

fabrics

and

heavy

fabrics

are

optional.

Features

(1) Easy

(2)

(3)

(4)

pattern

Stitch

By using a PROM

Memory size

together

used

Work

change

data

(pattern

canbeexpandedupto

with

holder

drivenbystepping

data)

writer

the

canbestoredupto

(option),

PROM

writer

Stepping motors are used to drive

Since

the

work

holder

drive

mechanism

free

long

use.

Pattern

The

Stitching

enlargement/reduction

patterns

stored

suspension

in PROM can be enlarged or reduced

(HALT

function)

pattern

PTN-4000.

motor

the

(SCALE

1000

data

can be easily

4,000

stitches

work

holder.

usesnofrictional

function)

stitches

when

in PROM

stored

optional

part

within

cassette.

in PROM.

(additional) PROM

suchascam,itpermits

a range from 0%to199%.

maintenance-

Stitching can be suspended and the work holder can be adjusted stitch by stitch along the pattern.

(5)

Smooth

LIMI-STOP Z

ingnomaintenance.

and

quiet

motor

start

and

stop

is usedtodrive

the

main

shaft,

permitting

smooth

start

and

stop

cassette

and

requir

is

-5-

(6) Test function for checking

the

pattern

The work holder movement and stitching motion can be tested at low speed.This function is very

helpful

(7) Various

oPROM

whenanew

safety

functions

cassette

oData

input

o Excessive

oWork

oMotorormachine oV-belt

trouble.

Error

holder

outofpulleyorbreakage

indication

loading

error

enlargement

overrun

pattern

detection

alarm

standstill

lamps

is stored.

confirmation

alarm

are

usedtogive

(duetooverload)

alarm

alarms,

permitting

immediate

identification of

(8) Microprocessor incorporated full-electronic control system

8-bit

(9)

microprocessor is used in

Automatic

home

position

return

the

control

function

system.

Since the work holder automatically returnsto the home positionwhen one pattern iscompleted,

error

dose

not

accumulate.

cause

of

-6-

3.

INSTALLATION

3.1

3.1.1 Casters can be locked by pressing down the lever of each caster. To move

3.1.2

3.1.3

Installing

the

release

Table

the

lock

from

each

caster, by lifting

the

The sewing machine should be placed on flat and rigid floor.

The

sewing

machine

Since

the

table has been factory-adjusted for sitting

ing

machineisoperated

canbeoperated

in a

standing

in a

standing

postureasfollows:

lever.

as well as

work,

sitting

change

the

posture.

the

table height when

sewing machine,

the

sew

Stand

clamping

bolt

Fig. 3.1

(1) Remove

(2) Remove each

(3) Lift the table by

(4)

Install

the

four

control

four

about

box.

box clamping nuts and

left

and

right

stand

dismount

clamping

bolts.

the

control

10 cm and secure it with the stand clamping bolts.

Notes: (1) Table height should be changed before the machine head is installed.

(2) If table height must be changed after the machine head has been installed, dismount the head

and

then

adjust

(for

safety).

box.

Control

box

clamping

nut

3.2

Installing

(1)

(2) Put each one rubber pad into four recesses found in

(3)

the

Machine Head

Install

the

Take

furnished

outthe

headrestto the table

machine

head

Set each one rubber pad into

from

the

shipping

recess

at four corners of base bottom.

(4) Secure the baseto the table usingfurnished two wood

El

(See

Fig.

case

1.1)

the

and

table.

place

screws.

it on the

tableasshowninFig.

3.2

About5mm

Notes: (1) If

(2)

Block

Hinge

Rubber

the

base is

not

securedtothe

the

headisleaned.

For

prevention of spring up of

thick

below

the

head,asshown

pad

P

Leads

.

Wood

M

wood

screw

Rubber

cushion

Fig.

3.2

table, it may spring up, duetogravity of

the

base, it is recommendedtoinstall a block of

in Fig.

3.2.

screw

Rubber

the

pad

head, when

about

5 mm

-8-

3.3

Connection

of

Leads

(1} Pass the leads from the head through the hole provided in the table and connect them to the

corresponding

(2) Secure the leads in position with lead clamp so

connectors

(see Fig.

3.5).

that

they

cannot come into contact with

The cord band of lead clamp can be released by levering it with screwdriver as shown in Fig.

Cord

band

Lead

clamp

Screwdriver

Lead

clamp

Fig.

3.3

the

belt.

3.3,

Note: Two

for

be

junction

(3) Install

(4)

(5) Since

typesofjunction

X-axis

stepping

used

for

connection

cords are of

the

V-belttothe

at

high

speed

Stand

the

machine

the

belt cover must be removed

cord

are used for

motor,

the

and

of

same

Fig.

otherisfor

Y-axis

stepping

type,

3.4

Connectionofmachine

pulleys

operationofsewing

head

upright.

connectionofthe

Y-axis

stepping

motor,

and

control

motor).

vice versa,

identify each cable before the

head

and

with

suitable

machine

when

tension.

if V-belt

tensionisfaint.

the

head is leaned, or

Note

box to stepping

Since

though

connection.

control

box

that

the

motors

the

X-axis

cable

the

connectorsofboth

V-belt oscillates

balance wheel is

(one is

may

intensely

turned

by hand, do not install the cover until the sewing machine has been set up to be ready for

operation.

not

ooo

OOP

Iddbdl

00

oooo

O

CON32:

CON33;

lOOOl

ooo

O CON 17:

OCON14:

oo

O CON38: Work holder lift switch, start switch connector

O

CON34:

CON

Thread

Motor,

Home

Synchronizer

Stepping

13:

Control

trimmer

clutch

position

motor

box

connector

and

brake

detector

connector

power

source

connector

3.4

Work

(1) To install a

lamp leads found at

motor,

each the

the

(2) For lamp, use

(3) When a

Fuse

Back

viewofcontrol

Lamp

lead

lamp. Apply

connection.

rating.

leads

should

(see Fig.

Fig.

Leads

remove

and

work

3.6.)

po^

I

odoo

oooo

box

3.5

work

lamp,

the

insulation tape, strip

join

themtothe

the

insulation

that

having

lampisnot

be

kept

insulated

oo

draw

back of

cord

the

used,

out

from

tape

after

specified

the

by

the

two

tape

C0N6:

O shows

Lamp

Motor

power

source

connector

the

leads

from

the

machine

Insulation tape Phase-reversing plug

leads

head

LIMI-STOPZmotor

Fig.

3.6

Work

3.5

Power

Cable

Connection

The power source capacity should be

selected

(1)

with

sufficient

When

a three-phase motor is used,connect the powersource in correct phasesequence asfollows:

"U" "V" "W"

allowancetothe

phase Red lead phase

phase Black lead

large

enoughfor the motor ratingand the powercableshould be

powe

source

requirement.

White lead

(2) Connect the green lead in the three-phase power cable to the ground terminal. For safety, do not

failtoground.

Be

suretoleave

the

grounding

worktoa qualified electrician.

-10-

lamp

leads

(3)

Whenasingle-phase

wall

outlet.

motor is

used,

do not

plug

the

power

cord to a

branch

socket,but

plug

to a

Notes: (1) All leads should be bundled and secured in position so

with

the

V-belt.

(2) Securely

(3) Before

3.6

installing

To

use

motor

the

pedalasshown

to

allow

CAUTION:

When

the

machine

should

have

headisleaned

be

brokenbytension.

cover

been

without

set

the

its

the

contact

starting

Work

work

and

install

head

plugs and

connectionofleads,

Holder

holder

the

in Fig.

with

the

is

leaned,

Pedal

pedal,

furnished

3.7,

leads.

connectors.

remove

using

the

loosenedbyunhooking.Ifthe

unhooking,

the

chain

care

chain

might

unplug

the

to

not

the

power

Motor

Large

cable or

that

they cannot come into contact

cord.

cover

hook

Pedal

Chain

Fig.

3.7

Small

hook

-11-

4. PREPARATION AND CAUTIONS

(1)

Make

(2)

(3)

(4)

(5)

surethe source

Make

sure the

cassette

Move

and

work

holder.

Make

surethe

Check

the

To

check,

slot.

locate

LIMI-STOPZmotor

turn on the

PROM

the

presser

voltage

work

meetsthat specified for the

cassette in

holderbyhand

foot isset up so that the

power,

which

for

directionofrotation.

depress

lower the work holder and set the

refertosection

While

holding

The

pulley

correct

Direction

When changing

(6)

Locationofwork

The

work

directionofrotationisindicatedbyarrow

5).

down the STARTswitch(foot switch),seethe pulleyto check directionof its rotation.

should

rotate in

forward

of rotationof the motor canbe

the

plug setting, use care to fully insert the plug into the socket.

holder

holderislocated,inreferencetoits

BEFORE

THE

USE

sewing

machine.

stitching pattern data are stored is properly inserted into the

sothat the

needle

the

RESET

STOP/MOVE

direction,

reversedbychanging

home

needleisalways

fallson the center of

(For

switches,

button,operate the

situated

presser

refertoFig.

WORK

HOLDER

within

foot.

1.1

the

and

LIFT

switch to "STOP" position (for functions of switches,

viewed

from the right sideof the

near

the

pulley). (See Fig.

180®

position,asshown

settingofthe

in Fig.

sewing

1.1.)

phase-reversing

4.1.

range

5.1.)

switch

machine

ofthe

to

(the

plug.

Clamp

Sewing

Notes: (1) Before unplugging

lamp

does

not

light.

(2)

Before

Insertion

frame

area

the

power cord, depress

and

removalofPROM

Work

holder

set

Fig.4.1

cassette,donot

screw

Home

position !

the

POWER

failtoturn

Positioning

I

OFF

switch and make sure

off

the

plate

power.

the

pilot

-12-

5.

CONTROL

5.1

Switch

SWITCHES

panel

AND

THEIR

FUNCTIONS

Power switch (POWER]

OFF

Pattern

enlargement/

reduction setting switch (SPEED) (JOG)

(SCALE)

Pattern

(PATTERN)

select

Power

switch

Speed

ON

setting

Fig. 5.1

(POWER)

dial

Jog

switch

Pilot

(PL)

lamp

Error

Indication

(ERROR)

Reset/home

select

switch

(RESET/HOME)

Select

switch

(STOP/MOVE)

lamp

return

5.2

5.3

POWER

(1) When

(2) When

SCALE

that

When

work

switch

ON

and

POWER

the

POWER ON switch (green

the

sewing

the

needleisatUPposition,

the

POWER

holder,

if it isatDOWN

OFF

machineisfed

OFF

switches

with

the

switch (red

position,

pushbutton)

the

power

work

holder

pushbutton)

goes

up.

is depressed,

source.

automatically

is depressed,

the

pilot lamp (PL) lights indicating

returnstothe

the

pilot lamp goes

home

(1) Let the patterns stored in PROM be 100% in size, they can be enlarged or reduced within a range

from

0%to

199%

in X axis

(2)

Patternisenlargedorreducedinreferencetothe

/i^

and

Y axis

independently

Switch setting should be The

third

digit (hundred) is

—

Fig.

5.2

150%

SCALE switch setting

home

(1.5

(stitch

within

either

times)

length

position.

a range

"0"or"1".

canbeenlargedorreduced).

from

"000"to"199".

position.

out

and

the

-13-

Notes:

5.4

5.5

5.6.

5.6.1

(1)

When

patternisenlarged,itshouldbeverified

sewingarea. (Refer to para. 5.6.1.)

(2)

Machine

PATTERN

Desired

SPEED

The

maximum

course of stitching. (Refertopara. 7 (4).)

±JOG

speed

switch

pattern

switch

canbeselectedbythis

speed

switch

Test

function

After

the

work

(1)

Only

the work holder

switchisheldat*'+" When

the

tion,

the

posite

direction.

RPM

maybedecreased

(regular

holder

returnstothe

switchisset

work

holder

stitching

advances

position.

at

moves in

that

the

enlarged

when

switch

speed)

home

enlarged

(patterns

isset by

position

patternisstitched.

are

stored

this

switch.

andislowered,

in the stitching direction at a

posi

op

patterniswithin

from

"0"inPROM).

Speed

cannotbechangedinmid

fixed

the

range

(Refertopara.7(4).)

speed

while

the JOG

Neutral

of

5.6.2

(2) When

tion

the

switch is held at

and

the

work

holder

"+"

reaches

posi

the

Fig.

5.3

JOG

switch

end of pattern, the work holder goes up, and then returnstothe home position.

to

When the switch is held at " position, the work holder returns

the home position and

remains stopped there, thus permitting start of stitching by depressingthe START switch, or

permitting

(3)

During

skip

Stitch

correct

For

correction

the

work

and

backward

along the pattern by operating the JOG

switch after stitching is suspended by

depressing

This inching motion is same as

function,

holder

speed in

helpful

suspended

testbyoperating

test, the

feeding

holder

the

but

movesata

test

for

restarting

duetothread

presser

test.

function

or

amendment

can be moved in

direction

HALT switch (see Fig. 1.1.).

differs in

speed

operation.

This

the

sewing after it is

breakage.

foot is at

of

stitch

thatoftest

that

lower

function

the

stitches,

forward

by

the

than

(+)

JOG

DOWN

stitch

work

the

switch.

position for stitching test, and atUPpositionfor

| |

© ©

-K-

Threadisbroken

Work

holder

Fig.

5.4

Inching

direction

is

stop

here.

position.

-14-

5.7

RESET/HOME

(1)

"RESET"

(2)

"HOME"

5.8

STOP/MOVE

The switch is

(1)

Bobbin

When

position

(2) Loweringofpresser

When

This switch setting is very helpful when

In usual operation,

5.9

Error

indication

The following

(1)

ERROR

Green

switch

setat"STOP"

winding

the

START

the

sewing machine runsatabout

this

switchissetat"STOP"

"error"

1

No

position mostly for bobbin winding, and for lowering of

switch is depressed

foot

the

switch is setat"MOVE"

lamps light and operation stops when the following troubles occur.

pattern

dataisstoredorstored

When

the

switchisset

movementisreset.

When

the

switchissettothis

machine

movement

When

holder

(When

and

In usual

stops

with

is

reset.

the

switchisset

automatically

the

needleisataposition

the

work

holder

operation,

after

lowering

600

position,

the

presser

upward

position

the

needle

stoppedatUP

downward

returnstothe

the

switchissetat"HOME"

the

work

holder

spm,

but

the

work holder does

presser

foot

goes

foot

hinders threading.

position.

data

are

improper.

("RESET"

during

("HOME"

home

other

home

position),

stitching

position

position),

position.

thanUPposition,itgoes

position.)

position.

the

with

this

switch set at

not

down.

and

move at all.

Red Pattern is enlarged excessively and stitch length exceeds 6.2 mm.

(2)

ERROR

Green

(3)

ERROR1,ERROR

2

The

work

holder

runs

over

its movable range

2

-*•

Scale

down

the

pattern.

Two red lamps (ERROR 1 and ERROR 2) lighting on

The

needle is

Set

UP position, and

notatUP

the

RESET/HOME

position

switchto"RESET"

the

work holder

when

the

retumstothe

poweristurned

and

then

home

on.

"HOME"

position.

The

needle goesupto

Two red lamps (ERROR 1 and ERROR 2) flickering

out

of pulley

5.10

The LIMI-STOP Z motor or sewing machine itself is locked or the belt is

-»•

Turn off the power, eliminate the cause of trouble and turn on the power again.

Work

holder

pedal

The work holder can be lifted or lowered by depressing this pedal (the height of work holder depends

on degreeofthe

The

5.11

Work

work

holder

pedaling).

holder pedal is very helpful when usedtoposition a given fabric.

lift

switch

The work holder goes down when this switch (pushbutton) isdepressed, and goes up when it isdepres

sed again. (See Fig.

1.1.)

all

machine

operation,

all

machine

the

work

presser foot.

"STOP"

the

up

-15-