HANDBOOK FOROVERLOCK SEWING MACHINE

MODELS 530/530Dand 5461546D

__:Ef

cx: CC] c

Thank you very much for purchasingan Overlock sewing machine.

You have just purchased an overlock sewing machine for sewing all kinds of

fabrics—cotton, wool, rayon, tricot, jersey, knitted goods—thick or thin.

You cannot be other than satisfied with its perfect and beautiful stitches and its

long operating life.But, however excellent this sewing machine may be, it cannot operate to its

fullest capacity unless it is handled correctly.

Please read the following instructions carefully so that your new sewing machine

will give you complete sewing enjoyment for years to come.

TABLE OF CONTENTS

Names of parts nd their funcbons 1

Needles 2

Turning direction of motor 3

Opening and closing the front cover 3

OperatIng 4

Charirting gb: hiob 4

Motor 5

Threading 6—11

Preparatcri 6

MODEL 9.idO6D & 530530DThreadnrt .odnroopc 7

Threaoinq -.er’ooper 8

Threading gnt needle 1M546/546D) 9

Threaoing left needle (M546i546D1 10

Threading needle M530/530D1 11

Test-sewing hioOs 546 546D, 53063GD 12

Cha1nr:g-o 12

Ratio Char: cf Cevinc Materia!, Thread and Needle 13

Thread ienslcn 14

MODEL 546/546D 14

MODEL 5305300 15

Sti:cb Leng:h ccc S:t:n Ai.3:h 16

Char: of Threac cns:or oIustment ibOS/54631 17—18

Chart of Thread Tension Adjustment (530/530Di 19—20

Instruction tor models equipped with differential feed mechanism 21—22

Sewng 23—24

To start sesrtg 23

To rerncvt me wo 23

If tnreads break dubng sewing 23

To sew flea/v materla 24

To sew inc malerial 24

Presser foot pressure 24

Fault-finding 25

Sttch Selection 26

MODEL 54615460 26

Oiling 27

Machine Specification 28

Names of parts and their functions

— 1 —

Needle

TE xl (#11 & #14), DB xl (#9,11, 14), DB x 1KN #11, 1738 or 16 x 231 can beused on these machines. TE x 1 (#1-U is mounted on the machines.

NOTE:It is recommendable to used the golden needle (DB x 1 KN#il in theaccessory when sewing knitted garments.

Model 530/530D

Needle set Needle bar

Long groovedHexagonal

toward youwrench

-)

To remove the needle

‘1) Turn the hand wheel clockwise by hand until the needleis in its highest position.

(2) Loosen the needle set screwwith the screwd river (M530/M530D) or hexagonal wrenchM5461M546D) and remove

the needle.NOTE:

When removing the needle,hold the needle with the tweezers to avoid dropping it.

To insert the needle

(1) Turn the hand wheel until theneedle bar is in its highestposition.

(2) Hold the needle with its longgrooved side to the front andinsert it as far as the needlestop.

r3) Tighten the needle set screwsecurely, taking care that theneedle is set in the correctposition.

Needle Needlebar Iset screw

Needleeye

Model 546/546D

Turning direction of motor

Opening and closing the front cover

The motor of this machine turnsin a clockwise direction (directiono arrow), as opposed to the anti-clockwise direction of an ordinarydomestic sewing machine.

When threading, it is necessary to open the front cover.Note: When sewing, ensue that the front cover is closed.

To open the front cover

Move the knob on the trontin the direction of the arrov and

pull it open.

To close the front cover

Push the front cover on b hand asillustrated here.

Operating

Changing the light bulb

Undo the two upper screws on theback ol the machine as illustrated,remove the cover and screw thelight bulb out. Insert the new bulband screw the cover in place.Use 15 W light bulbs as indicatedon the lamp holder.

Preparation

Insert the three-pin plug into thesocket of the motor and insert thesupply plug into the power outlet,

Operation

When the pedal is lightly depressed,the machine runs at low speed andas it is depressed further, themachine will increase speed. Whenthe pedal is released, the machinewill stop.

-4—

NOTES ON THE MOTOR

The normal operatmg speed of this sewing machine is 1.500 stitches perminute, which is quite fast compared to the normal operating speed of 300 to800 stitches per minute for the ordinary foot-operated sewing machine.It should be noted that the motor of this sewing machine turns in the oppositedirection to the motor in an ordinary sewing machine.

The bearings in the motor are made of a special, sintered oil-impregnated allo\mounted in oil-soaked felt to withstand long hours of continuous operation.

Continuous operation of the sewing machine will heat the motor and footcontrol a little, but not enough to adversely affect its performance.The motor and foot control are equipped with ventilating holes, which mustnot be covered with cloth or paper during use.

When the motor is running, sparks can be seen through the ventilating hole inthe motor bracket on the side opposite the pulley. These sparks are producedby the carbon brushes and the commutator, and are of no significance.

CAUTION

WHEN THREADING, REPLACING NEEDLE, OR WHEN MACHINE

IS NOT IN USE, IT IS RECOMMENDED THAT THE ELECTRIC

SUPPLY PLUG IS DISCONNECTED TO AVOID ANY POSSIBLE

HAZARDS.

ThreadingPreparationRaise the spool pin right up and set it by the positioning stopper at the oint ofthe upper and lower sections of the pin. Make sure that the thread holders areright above the reel support.

When you use a wooden threadreel, use the thread spool cap asillustrated to the right.

How to use net

If you are sewing with loosely-spun nylon thread we recommendthat you cover the spool with thenet supplied to prevent the threadfrom slipping ott the spool.Adapt the net to the shape of thespool, see illustration.NOTE:

Ensure that each thread runs between the two thread tensiondiscs.

How to use thread spooi cap3)

I

C

L

; Net

, ,.

•1’,

, ,,,s’. .w

‘I

-J

-J

Thread

. Thread tensionI discs

—6--

THREADING—MODEL 546/546D AND 530/530D

Threading underlooper

NOTEIf underlooper thread breaks during sewing.This may be caused by the underlooper thread getting caught onthe overlooper. If this happens,ower the ovedooper by turningthe pulley, remove the underlooper thread from overlooper andre-thread the overlooper.

Run the thread n the seuuence HlustratLd.

•1

___

0o o c c

Pull the thread about15 cm (6½ inch)from the looper.

—7--

Threading overlooper* Run the thread in the sequence illustrated.

NOTE:When threadingWhen threading

M546/546D, thread through a).M530/530D, thread through b).

NOTEIf overlooper thread breaks during sewing.Before re-threading the under-looper, cut and remove threadfrom both of the needles.Then re-thread the underlooper.Make sure that re-threading isdone exactly as diagrammedabove. The machine will not operate properly if threading is notaccurate. Also, be sure thread isinbetween the tension disc. Thiscan cause the breakage of thread.

_._—7-- \\.—z \

—8—

CAUTION

Thread the needles after threading of underlooper and over-looper.

Threading right needle M546/M5460* Run the thread in the sequence illustrated.

t

I

Q o o

.1

%0

4

co 8

—9—

Threading left needle M546/M546D* Run the thread in the sequence iflustrated.

8I1l8,.

I rtr JJLDñUII

____

I C

/[ L’

_

4—

—10—

Threading needle M530/M530D* Run the thread in the sequence illustrated.

/1 h N

7A

—11 —

Test-sewing—Models 5461546Dand 530/530D

*Test sew after threading.

(1) Place material for test-sewingunder the presser foot.

(2) Hold the needle threads withyour leit hand, turn the pulleyslowly a few times in a clockwise direction with your righthand, and observe how thethreads entwine themselvesbefore starting sewing.

*After test-sewing, hold the foot control depressed slightly and chain off 4inches. The threads will entwine themselves into a chain automatically.

NOTE:

If the thread tension is not correctly balanced, uneven chaining-off will result.In this case, pull the threads slightly.

Chaining-off

—12—

£1,

‘4 0

CD 0) a0 a® z.

0(0

a

.4 CD cv.

Lig

htin

a ter

ia

Cre

pede

Chi

neG

eorg

ette

Law

nO

rgan

die

iric

ot

Ove

rloc

kst

itch

(MS

3OIM

S3O

D/

M54

6/M

546D

)2.

0-3.

0Sp

un:

#80

Cott

on:

#80.

100

Silk

:#

80

.10

0

Lig

htG

eorg

ette

mat

eria

lL

awn

Org

andi

e

(-‘3

hem

min

gst

itch

(M5i

0/M

S3O

D/

M54

6/M

546t

))

Smal

ler

than

2.0

Med

ium

mat

eria

l

Nee

dle

thre

adT

etro

n:

#80

Nyl

on:

#80

Loo

per

thre

adFe

tron

:#8

0N

ylon

:#8

0W

ooly

nyro

nth

read

Popl

inG

ingh

am

See

rsuc

ker

Gab

ardi

neSe

rge

Kni

tted

Ove

rloc

kst

itch

(M53

0/M

530D

/M

546/

M34

6D)

2.5-

3.5

Hea

vym

ater

ial

Spu

n:

#60.

80C

ott

on:

#6080

Silk

:#5

0-80

Nyl

on:

#50.

80T

etro

n:

#5080

Cas

hmer

eT

wee

dD

enim

Jers

ey

Ove

rloc

kst

itch

(M53

t)/M

33t)

F)/

M54

6/M

546t

))3.

0-4.

0

Cott

on:

#40.

60Si

lk:

#4

06

0T

etro

n:

#306()

Nyl

on:

#30.

60

Thread Tension—Model 5461546DThread tension dial

Sewing is possible at position “4” under almost any circumstances. If you findit impossible, adjust according to the drawing below.

(Standard: Nylon spun No.60)*The thread tension of this machine can be adjusted by four thread tensionadjustment dials ot the two needle threads, overlooper thread and under-looper thread. The correct thread tension varies with the type of fabric, thethickness of thread etc. Adjust the thread tension as required for eachparticular case. Turning the dials clockwise increases the tension and turningcounterclockwise slackens it.

Adjusting the thread tension

(1) Select the correct tension, refer to above illustration.(2) If you cannot find the correct tension, refer to the illustrations “CHAT

THREAD TENSION ADIUSTMENT” on following pages.

Upper thread tension dial

Tension control

for heav use or medium use ©. for light use

— 14 —

Thread Tension—Model 5301530DThread tension dial

Lower thread tension diallUpper thread1 for overtooper

dial 1 ireen

‘\ Lower thread tension diall)( kfor underlooper\(blue)

Tension control

Sewing is possible at position “4” under almost any circumstances. If you findit impossible, adjust according to the drawing below.

for heavy use or medium use ©. for light use(Standard: Nylon spun No.60)*The thread tension of this machine can be adjusted by three thread tensionadjustment dials of the needle thread, overlooper thread and underlooperthread. The correct thread tension varies with the type of fabric, the thicknessof thread, etc. Adjust the thread tension as required for each particular case.Turning the dials clockwise increases the tension and turning counterclockwise slackens it.

Adjusting the thread tension

(1) Select the correct tension, refer to above illustration.(2) If you cannot find the correct tension, refer to the illustrations “CHART OF

THREAD TENSION ADJUSTMENT’ on following pages.

15

Stitch Length and Stitch WidthStitch length M546/M546D, M530/M530D

-

Stitch width M530 and M530DThe size of bight can be adjusted as follows:

E

H

U

*When you change the stitch length,open the material plate cover. Lowerthe adjustment lever and set the leverto the proper position, then raise theadjustment lever up.You can adjust the stitch length fromminimum 2 mm (½ inch) to maximum5 mm (¼ inch).

To adjust cutting line:(1) Open the front cover.(2) Move the upper blade on the right

and turn in arrow direction until itis locked keeping it pushed.

(3) Loosen the set screw for the lowerblade holder.

(4) Move the lower blade holder to theleft or to the right.

* If the lower blade holder is moved tothe left, the distance between theneedle position and cutting line willbe less.If the lower blade holder is moved tothe right, the distance will increase.

(5) Tighten the set screw.

—16 —

Chart of Thread Tension Adjustment546/5460

Led needle thread Is slack.

Right nec t

— ‘t’”_

—17—

Tighten overlooperthread (green)

Tighten underlooperthread (blue)

Tighten over)ooperthread (green)

Tighten left needlethread. (orange)

T)ghten right needlethread, (red)

ILIT

ISlacken left needlethread, )orange Correct thread tension

Slacken right needlethread. (red)

Slacken overlooperthread (green(

T)ghten underlooperthread )blue(

Slacken underlooperthread )blue

NOTEOrder of thread tension adjustmentWhen you adjust the threadtension, do it in the followingorder;1) Left needle thread2) Right needle thread3) Overlooper thread4) Underlooper threadThis is the easiest way to obtainCorrect thread tension.

—18—

Chart of Thread Tension Adjustment530/5300fl this case.

Needle thread

Reverse

Reverse

—19—

Correct thread tension

Tighten overlooper thread igreeni

Tighten underlooper thread (blue;

— 20 —

Instruction for models equippedwith differential feed mechanism

—Models 530D & M5460

* How to adjust differential feed ratio.

(1 ) Open cloth plate cover.(2) Loosen feed ratio adjusting

lever.(3) Adjust feed ratio as required.(4) Fasten adjusting lever.(5) Close cloth plate cover.NOTE:

What is “differential feed ratio”It is ratio of differentialfeeding power (adjustable) tomain feeding power (fixed).It is adjustable between 0.7and 2.0.

DifferentialFeed ratio Main feed Effect Applicationfeed

Prevent thinO.71 .0 Materials tomaterials frombe pulled.puckering.

1.0 Without differ- Normalential feed. sewing.

‘ Prevent elasticmaterials from1 .0—2.0 Z Materials to be

gathered. stretching.orPuckering.

21 —

*An example requiring adjustment.

L

With normal feed, the edge of theelastic materials will be wavy.

To correct, adjust the feed ratiobetween 1 .0 and 2.0.(Feed ratio depends on elasticityof materials.)

Caution In case you sew with thick materials which is not elastic such as denim,do not work differential feed so as not to damage materials.

4

_

I

—

SewingTo start sewing

*Place the material well underneath the presser foot beforestarting to sew. Slowly sew afew stitches by turning the pulley by hand.

*The material will be fed automatically. You need only guide it inthe required direction.

If threads break during sewing

*Vhen the seam is tinished,keep the machine running atlow speed to obtain chaining-off. Then cut the stitches 5 cm(2 inches) from the work. Iffeeding for chaining-off is notenough, pull the thread gently.

*Remove the material andrethread correctly. Replace thematerial under the presser footand sew 3—5 cm (1V—2 inches>over the previous stitches.

Caution Do not use straight pinsin fabric when sewing.They will destroy the needles and blades.

To remove the work

— 23 —

To sew heavy material* Place the material underneath

the presser foot unril it touchesthe front of upper blade.Then, start sewing.Do not lift the presser footwhile sewing.

(1) Adjust the pressure to prevent material trom puckering and to tacilitatesewing curves.

(2) Slacken the thread tension, but remember that (the tension is too slackthis may cause the thread of break and skip stitches.

3 Blunt blades will not cut a clean seam, and also cause the fabric to pucker.

Presser foot pressure

‘‘“N *The pressure of the presser footcan be adjusted b\ turning thepressure adjustment screw. Sincethis machine has already beenadjusted to a pressure suitableto light and medium-fabrics, nofurther adjustment is nccessar’except when sewing very heavyor very light materials. Usually,when sewing very light materials,the presser foot pressure should

______________

be slack and when sewing veryheavy materials, it should betight.

To sew fine material

Pressure adjustment screw

Less _— Morepressure presSUre

15 mm(We inch1”’

(Standard height for medium material).

— 24 —

Fault-findingThis sewing machine is designed for trouble-free operation. Hoe\er the followingchart indicates faults which may develop in the absence of basic adjustments.

Troub — Cause RemedyI. Does not Presser foot pressure too Turn pressure adjustment screw clockfeed. weak, wise to increase presser foot pressure.2. Needles 1 - Needles bent, or Replace with new needle.

break, needle tip blunt.2. Needles incorrectly Fit needles correctly.

fitted. See page 2i3. Material pulled Do not press or pull material too

forcibly, hard when sewing.1. Improper threading. Thread correctly.

(See pages 6—li.)2. Thread tangled. Check spool pin, thread holders, etc.

and remove tangled thread.3. Thread tension too See pages 14—20 “Thread tension”.

tight.

4. Needles incorrectly Fit needles correctly.fitted. (See page 2.)

5. Wrong needle used,

4. Skipped i. Needle bent, orstitches, needle tip blunt.

2. Needle incorrectly Fit needle correctly.fitted. (See page 2.)

3. Wrong needle used. Use correct needleTEX1 (DBX1)

, 4. Improper threading. Thread correctly.(See pages 6—li.)

5. Presser foot pressure Turn pressure adjustment screw clocktoo weak, wise to increase presser foot pressure.

5. Stitches not Thread tensions not See pages 14—20 “Thread tension”.uniform, adjusted properly.

6. Fabric 1 . Thread tension too Decrease thread tension when sewingpuckered. tight. lightweight or fine material.(See pages 14—20.)

1 2. Improper threading Thread correctly.or thread tangled (See pages 6—li

3. Threadsbreak.

Use correct needleTE X 1 (DB X 1)Replace with new needie.

- 25

MODEL 546/546D

Stitch s&ection

These sewing machinesfollows;

can form three kinds of stitches in simpie steps as

i%—

L

1. Four-thread overlockstitch

Use all the four threads andtwo needles for producingfour-thread over{ock stitches,

which will neatly fit all kindsof materials, especially knittedones.

Use: deal for sewing knitted garments.

2. Three-thread overlockstitch (5 mm/1/4 inch)

Use three threads and leftneedle, producing 5 mm seams,which will fit all kinds ofmaterials.

Use: For overlock stitching andsewing suits, blouses, slacks,

etc.Note: Take off right needle when

sewing tha overlock stitch.

3. Three-thread overlockstitch (18 mm/3/16 inch)

Use three threads and rightneedle, producing 2.8 mm(¾6 inch) seams.

Note: Take oFf left needle whensewing this overlock stitch.

— 26 —

OilingFor smooth and silent ooeration the moving parts ot the machine should beoue d periodicail’y. (Sec diagram below.)

REMARKS:1. Be sure to oil your sewing machine before use,2. Oil 1 to 2 drops at the oiling points.3. OIL ONCE OR TWICE A MONTH IF MACHINE IS USED NORMALLY.

IF MACHINE IS USED MORE OFTEN, OIL ONCE A WEEK.4. After oiling, run the machine without thread and the presser foot up. Wipe

off excess üil with a scrap piece to avoid oil stains.

Models 560D and 530D Models 530/5300 and546/546D

Mac

hin

eS

pec

ific

atio

n

Mod

elN

o,

Use

Sew

ing

spee

d

StO

(hw

klth

Sti

tch

leng

th(p

itch

)

Nee

dle

bar

stro

ke

Pres

ser

foot

Pres

ser

foot

lift

Nee

dle

No.

ofne

edle

san

dth

read

s

Mac

hine

net

wei

ght

546/

5461

)

Lig

htto

heav

yw

eigh

tm

ater

ials

1,50

0st

itch

espe

rm

inut

e

2.8

mm

and

5.0

mm

2m

mto

5m

m

25m

m

Free

pres

ser

type

5.0

mm

/6.0

mm

FEx

1D

Bx

1

Thr

ee/F

our

thre

ads

conv

erti

ble

Tw

one

edle

sor

sing

lene

edle

7.0

kgs.

(546

)

7.5

kgs.

(546

1))

Lig

htto

heav

yw

eigh

tm

ater

ials

1,50

0st

itch

espe

rm

inut

e

3m

mto

5m

m

2m

mto

5m

m

25m

m

Free

pres

ser

type

5.0

mm

/6,0

mm

xI

[)B

xI

Thr

eeth

read

sSi

ngle

need

le

7.1)

kgs.

(530

)

7.5

kgs.

(530

D)