Highlead GA0688-1 User Manual

®

HIGH

LEAD

GA0688-1

Flat

Compound-Feed Lockstitch

Instruction Manual

Bed Extra-Heavy Duty

Sewing Machine

Parts Catalog

SHANGHAI HUIGONG

N0.3

SEWING MACHINE FACTORY

CONTENTS

L Precautions befores

• Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . • . . . . . . . . . . . . . . . . . • . . . • . . 1

• Precautions before

• Precautions 2,

Specification

3,

PREPARATION

• Cleaning the machine

• Examination

• Lubrication

• Testing 4,

HOW

TO

ATTACH A NEEDLE

5,

WINDING

6,

ADJUSTMENT

• In case

•

Winding

•

Winding

7,

THREADING

for

....•........................................•....•....•..••....•....•..

FOR

...•..........................•..........•............•.....•..........

...........................................•...•...•....•..•••..•••..••.

.....•....... · •.......•.................................•...........•..•.•...•

OF

BOBBIN OF

THE

of

uneven winding. . . . . . . . . . • . . . . . . . . . . . . . . • • . . . • . • • • . . • • . . . • • . . • • . . . . . . • • . . • 3

amount strength

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . • • . . . . . . . . . . . . • • . . • • . . • • . . 4

Starting

Operation Conditions

OPERATION

....................................•.........••.•••...•.....•

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . • . . . . . . . . • . . • . . . . . . • 2

THREAD BOBBIN

of

thread . . . . . . . . . . . . . . . . . . • . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . • . . . • • 3

.............................•......•..............••.•.....•••.•••

Operation

.................•...........•............••.•••...•....•.•

......................................................•......

WINDER

. . . . . . . . . . • . . . • . . . . . . . . • . . . . . . . . . . . . . . . . . . . . . . . • . . . • • 3

..........•..•.

........•.............•.............•......•..

..............•....................•...••..•...

•

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

1

1 1 1 2 2

2

2 2

3

8,

REMOVING

•

Removing

•

Installation

9,

ADJUSTING

• Tension

• Tension 10,

ADJUSTMENT

11,

ADJUSTMENT

12,

ADJUSTMNET AND

FORWARD/BACKWARD

13,

FEED

DOG

14,

ADJUSTING

AND

INSERTING

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . • . . • . . . . . . . • . • . • 4

.......•..........................•...................••...•.....•.•.•.

THE

THREAD

of

the upper thread

of

the lower thread. . . . . . . . . . . . . . . . . . . . . . . . . . • . . . . . . . . . . . . . . . . . . . . . . . . . . • . . . 5

OF

PRESSER

OF

WALKING

OF

STITCH

HEIGHT

THE

HEIGHT

THE

BOBBIN

TENSION

PRESSURE FOOT

LENGTH

SEWING.

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

OF

THE

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

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

........•.............•....•.......................•....

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

AND

PRESSER

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . • . • . . 6 I

NEEDLE

FOOT

..•...•.•••...•..••..••...•...•••..•.•.••

BAR

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

4

4 4 5

5

6

6 7

1.

PRECAUTIONS BEFORES STARING OPERATION

1)

Safety precautions: .

(I)

When

and

the

machine,

the

machine

is

in

the

area

(2)

Power

(3)

Power

(4)

Avoid

(5)

Do

operation.

(6)

If

a belt

turning the power

around

is

not insert

the

pulley.

nwst be turned off when

must be turned off when tilting

or

when

replacing.

placing

in

fingers,

operation.

fingers

cover,

finger

on,

keep

the

hairs, bars

into the thread

guard,

eye

your

hands

and

fingers

machine

etc.,

take-up

guard are installed,

the

near

is

not in

machine

the

pulley,

cover,

use,

head,

under/around

away

or

when

installing or removing

"V"

_belt,

do

not operate the machine without these safety

devices.

2)

Precautions before starting operation:

(1)

If

the

machine's oil pan has an oil

smnp,

never

operate

the

machine

from

the area around/under

the

operator

bobbin winder

the

needle, or pulley when

before filling

leaves

the

pulley,

it

the

seat

"V''

belt,

or motor when

the

needle

adjusting

machine

(2)

If

the

machine

(3)

When

a new sewing machine

power

on.

(The

pulley

4)

Verify

(

3)

Precautions for operating conditions:

1)

Avoid

lower) .

2)

Avoid

2..

SPECIFICATION

the

using

Max.

Needle bar stroke

Thread

is

lubricated by a drop

should

rotate

counterclockwise

vol~ge

sewing

take-up

Stitch

and

(single

the

machine at abnormally high

the

machine

Needle

length

in dusty

speed

lever stroke

(r.p.m)

No.

(nnn)

or

oiler,

is

first turned

three)

phase

conditions.

(mm)

never

operate

on,

verify

when

viewed

with

those

temperatures

the

machine

the

rotational direction

from

the

pulley)

given

on

the

(

35

·c

or higher) or low temperatures (

DYX3

before lubricating.

of

machine

800

na.tnqJlate.

r.p.m

26#

56

96

0-15

the pulley with the

5"C

or

Presser-foot

stroke

By

Shuttie

hook

Lubrication

hand knee

(nnn) (mm)

By

-1-

13

20

KSP-204N

Manual

3~

PREPARATION FOR OPERATION

(

1)

Cleaning the machine

Before

hardened

(

l)

Though parts performed uneven operation.

(3)

When a new

long

time

CAUTION: Please use white spindle

leaving

and

contaminated

the

factory,

Examination

every

machine

may

be

loose

or

deformed

after

cleaning

resistance

or

abnormal

the

Lubrication (Fig.l)

is

used

Always

sewing

again,

machin~

replenish

keep the presser lifted before attempting a dry run.

by

dust

is

confirmed

machine.

the

during

after

noise.

is

a·

suitable

machine

storage

by strict

long

Tum

If

these

used

for the first

amount

oil.

parts

and

distance

the

pulley exist,

of

are

coated

shipment.

inspection

transportation

to

see

adjustment

time,

or

oil

to

the

with

rust-preventive grease,

This

grease

must

and

test before leaving the

with

jolt. A thorough examination

if

there

is

running obstruction,

must

be

made

sewing

portions

machine

indicated

be

removed

accordingly

left out of by

arrow

with

factory,

use

in

below

which

gasoline.

the

parts

collision,

before

for

considerably

figure.

may

be

machine

must

be

run-in

Fig.l

(4)

Testing

In

order

to

get

the

best

working

lubricated

4,

CAUTION: Before using the The according

fully.

Then

increase

the

HOWTOATTACHA.NEEDLE (Fig.2)

needle

to

used the

by

this sewing

sewing

thread.

situation,

speed

foDowing

machine

(the

sewing

run

the

sewing

to

the

need

one.

procedures, be sure to turn the power switch

is

DY

X 3

26#o

thread

should

be

machine

During

able

operation, proper

to

pass

-2-

in a low

the

pinhole.)

speed for

needle

about 1 month

off.

can

be

after

chosen

IDscrt

tho

groove aide

needle

upto the

of

needle forward the left

bottom

of

needle

clamp

and

dghten

the

screw

keeping

the

lcmg

5,

WINDING

(I)

Push

shaft

(2) Bring the thread

Lcmggroovo

left

aiclo

OF

the

bobbin ®

as

far

as

it

Insuffi.ciold

0

Fig.2

insortion

X

BOBBIN THREAD (Fig.J)

on

will

go.

forward

the bobbin

toward the bobbin

winder

Wrous

dircc1ion

X

and

wind

several

(3)

(

4)

from is

6,

ADJUSTMENT

Push

the

and

The

filled

times

the

driving

then

start

driven

the

driving

with

(1) In case

If

the

thread

right

or to

the

(2) Winding amount

from

below

in

clockwise

around

lever ® toward

wheel

thread.

and

the

machine.

wheel

the

bobbin.

driven

will

automatically be

and

OF

of

uneven winding

dose

not wind evenly

left

as

may

be required,

of

other

wheel

stop

after

THE

thread

direction

side

so

that

will

engage

free

the

bobbin

BOBBIN

on

the

then

tighten

WINDER

bobbin,

the

loosen

nut.

(Fig.J)

the

nut

CD

and

Fig.3

move

the bracket ®

to

the

Adjusting

® can increase or decrease

the

amount

of

thread

wound

on

(3) Winding strength

Strength

of

the

winding can

be

adjusted

with

the

nut

CD.

-3-

the

bobbin.

7...

THREADING (Fig.4)

Raise

the

needle bar to its highest position

and

route

the

upper thread in

the

order illustrated

below.

8...

REMOVING AND INSERTING

(1) Removing:

Open

the

(2) Installation:

Put

the bobbin in the rotary hook case, Permit about 5

the

bobbin in the bobbin case so that the thread

and

the

9

...

ADJUSTING

For

ordi.naty

shuttle race cap

shuttle race

THE

stitching, the tension

and

the bobbin

5

cap.

THREAD TENSION (Fig.5)

of

holder,

the upper

Fig.4

THE

and

BOBBIN

then take out the bobbin.

em

of

bobbin thread to hand down

wound

the lower

direction

threads

freely.

Install

is

clockwise. Then close the rotary hook

should be equal.

-4-·

.~

. (

Well

balanced

Upper

or

lower

Upper or

(1) Tension

Before adjusting the tension

turn serrated nut

if you desire to decrease the tension.

on

lower

of

the

Upper thread

tension device to the right (clockwise) to increase tension and

thread

of

the

upper thread,

Fig.5

stitch

is

too

is

too

is

be

sure that presser foot is

str~

too

weak

too

weak

X

strong

let

to

the

down. To adjust tension,

left (counter-clockwise)

(2) Tension

The

lower thread tension is controlled bobbin case. Turning left (counter-clockwise) will decrease the tension.

10-.

ADJUSTMENT OF PRESSER PRESSURE (Fig.6)

(1) Pressure should

material to

Pressure on

(2)

presser foot can screw has been

(3) Sewing pressure should

minimum

of

the lower thread

this

screw

to

be

adjusted according to the

be

sewn.

both

the walking foot and the

be

adjusted. (The adjusting

set

before shipment.)

be

required strength.

by

the larger

the right (clockwise) will increase

adjusted to the

scre"Yi

near the

the

end

of

the spring

thread tension, while turning

at

the outside

of

it

to the

the

-5-

Fig.6

11, ADJUSTMENT

(1)

The

alternating

and

presser

the

position relations of the parts of the presser

foot

lifting

(2)

Changing

movement

foot

can be

mechanism.

the position relation of the

OF

WALKING FOOT

on

the

adjusted

walking

by changing

foot

connecting

AND

PRESSER FOOT (Fig.7)

link 2 and

(3)

Adjustment

thickness

the

crank 3 can

should

of

the

material

be

12, ADJUSTMENT

SEWING (Fig.8)

(1)

Adjusting

change

(2)

Stitch

(3)

Setting "0"

the

stitch length

the stitch

length

the stitch length

can backstitch.

em

length. be

complete

changed

to be

OF

adjusting

adjusted

adjusting

the

adjustment.

according to the

sewn..

STITCH LENGTH

bolt can

between

bolt

0-15mm.

above

AND

Fig.7

FORWARD/BACKWARD

13, FEED DOG HEIGHT (Fig.9)

The

feed

dog

should

be

1.5

mm

higher

than

of

the

needle

plate.

can be

done

(1)

Thm

the.

to its highest

(2)

Loosen

height

by

Adjustment

as

follows:

machine

point.

the

raising or lowering it.

screw

pulley

of the

so

feed

as

to raise

dog Then

feed

and

adjust

tighten

the vertex

dog

height

the

feed

the

screw.

-6-.

Fig.8

dog

Fig.9

14,

ADJUSTING

When

the

measurement

needle

plate

needle

and

THE

bar

iS

at its

between

the

needlepoint

HEIGHT

highest

the

highest

is

28

point,

point

mm.

OF

THE

normally

of

the

When

this

NEEDLE

BAR

(Fig.lO)

distance

(1)

Take

its

highest

(2)

Loosen

screw.

(3)

Adjust

(4)

Tighten

need

down

position. the

the

to

be

the

screw

needle

screw.

adjusted,

face

plate,

of

needle

bar to

the

steps

adjust

bar

right

is

as

follows:

the

needle

connecting

position.

bar to

stud

Fig.lO

·-7-

A.ARM BED AND ITS ACCESSORIES

-8-

Highlead GA0688-1 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual