Highlead GA2688-1 User Manual

®

HIGH

LEAD

GA2688-1

Cylindrical Bed Extra-Heavy Duty

Compound-Feed Lockstitch Sewing Machine

Instruction

Man·ual

Parts

SHANGHAI HUIGONG

N0.3

Catalog

SEWING MACHINE FACTORY

CONTENTS

1, Precautions befores

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

• Precautions before

• Precautions 2,

Specification

3,

PREPARATION

for

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

FOR

Starting

Operation Conditions

OPERATION

Operation

Operation . . . . • • • . . . . . . . . . . . . . . • . . . . . . . . . . • . . . • . . . • • • • • • 1

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

.................•........

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

·

..•..................

1

1 1 2

•

• Cleaning the machine

• Examination

• Lubrication

• Testing 4,

HOW

TO

ATTACH A NEEDLE

5,

WINDING

6,

ADJUSTMENT.

• In case

•

Winding

•

Winding

7,

THREADING

OF

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

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

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

BOBBIN OF

THE

of

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

amount

strength

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

of

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

••.....

THREAD. ; .........••.••..•.........••....•..•.••....••.••.•.........

BOBBIN

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

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

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

WINDER

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

2 2 2 2

3 3

2

8,

REMOVING

•

Removing

•

Installation

9,

ADJUSTING

• Tension

• Tension 10,

ADJUSTMENT

11,

ADJUSTMENT

12,

ADJUSTMNET AND

FORWARD/BACKWARD

13,

FEED

DOG

14,

ADJUSTING

AND

INSERTING

...•..........•.....................

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

THE

THREAD

of

the upper thread

of

the

lower thread

OF

PRESSER

OF

WALKING

OF

STITCH

HEIGHT

THE

HEIGHT

THE

BOBBIN.

TENSION

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

PRESSURE FOOT

AND

LENGTH SEWING.

•••••.•....•.........•.....

OF

THE

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

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

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

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

PRESSER

. . . . . . . . . . . . . . . . . . . . . . . . . . . . • . . • . . . • . . . . . . . . . . . . . . . . . . • . 6

NEEDLE

BAR..

:

...

: . . . . . . . . . . . . . . . . . . . . . . . . . . • . . . . . . . 4

FOOT

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

;

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

..

.. ..

.. .. ..

.. ..

..

.. ..

...

..

.. ..

..

.. .. ..

,

..•.•.•

..

4

4 5 5 5 6

6 7

•

1. PRECAUTIONS BEFORES STARING OPERATION

1)

Safety precautions:

(I}

When

turning

and

the

area

around

(2)

Power

nmst

(3}

Power

must

the

machine,

(

the

machine

(5)

is

in

operation.

(

devices.

2)

Preca~tions

(1}

4)

6}

or

Avoid

is

Do

not insert

If

a belt

If

the

when placing

in

machine's

the

power

the

pulley.

be

turned

be turned off when tilting

replacing.

fingers,

operation.

fingers

cover,

finger

on,

keep yom

off when the

hairs,

into the thread

guard, eye guard

bars

machine

etc.,

before starting operation:

oil pan

has

an oil

sump,

hands

the

near

take-up

are

never

and

is

not

in

machine

the

pulley,

cover,

installed,

operate

fingers

use,

under/aromid

away

or

when

head,

installing or removing

"V''

belt,

do

not operate

the

machine

from

the

operator

bobbin winder

the

n'eedle,

before

the area

or pulley

the

machine

fi11iDg

around/under

leaves

the

"V" belt, adjusting

pulley,

when

without

it

seat

or

the

motor

the

machine

these

needle

when

safety

(2)

If

the

power

(3)

When a new

on.

(The

(4)

Verity

machine

pulley

the

is

lubricated by a drop

sewing machine

should

voltage

rotate

and

is

counterclockwise

(single

or

three)

oiler,

first turned

phase

3) Precautions for operating conditions:

1)

Avoid

using

the

machine at abnormally high

lower) .

2)

Avoid

using

the

2,

SPECIFICATION

Max.

sewing

Needle

Thread

take-up

Stitch

machine

Needle

bar

length

speed

No. stroke lever

in dusty

(r.p.m)

(nnn)

stroke

(nnn)

conditions.

(nnn) 96

never

operate

on,

verify

when

viewed

with

those

temperatures

the

machine

the

rotational direction

from

the

pulley)

given on the

(

35

machine

·c

or higher) or low

DYX3

before

800

56

0-11

lubricating.

of

the

:Oameplate.

temperatures

r.p.m

26#

pulley with the

(

St

or

Presser-foot

stroke

By

Sbuttie

Lubrication

hook

hand

knee

(nnn) (nnn)

KSP-204N

•

By

-I-

13

20

Manual

3"'

PREPARATION

(

1)

Oeaning the machine

FOR

OPERATION

Before

hardened

(

2)

Though

parts

performed uneven operation.

(3)

When a new

long

time

CAUTION: Please use white spindle oil.

leaving the

and

contaminated

factory,

by

dust

the machine parts

during

Examination

every machine

may

be loose or deformed

after cleaning the

resistance

or

is

confirmed by strict inspection

after

machine.

abnormal noise.

long distance transportation with jolt. A thorough examination

Turn

If

Lubrication (Fig.l)

sewing machine

is

used

again,

replenish a suitable

Always keep the presser lifted before attempting a dry run.

is

used

storage

the pulley

these

for

the

amount

are

coated

and

shipment.

to

see

exist,

adjustment must be

first

time,

or

of

oil

to

the

with rust-preventive grease,

This

grease

must

be

removed

and

test before leaving the

if

there

is

running obstruction, parts collision,

made

accordingly before run-in

sewing

portions

machine left out of

indicated

by

arrow

with

factory,

use

in

below

which

gasoline.

the

for

considerably figure.

may

be

machine

must

be

Fig.

I

(4)

Testing

In order to get the best working situation, run the

fully.

Then

lubricated

4"'

HOW TO ATTACH A NEEDLE (Fig.2)

CAUTION: Before using the following procedures, be sure to

The

needle

according

to

used the

increase

by

sewing

this

the

speed

to

the

need

sewing machine

thread. (the sewing thread

is

DYX3

sewing

one.

26#o

should

machine

turn

During operation, proper needle can be

be able to pass

-2·-

in a

low

speed for

the power switch

the

pinhole.)

about

off.

1 month after

chosen

Iasort

groove

the

needle upto the bottom

side

of

ncccJla forward

of

ocedle clamp

tho

left

and

dgbtcn

tho

scrow

koopiag tho

loq

5

...

WINDING

{1)

Push

shaft

{2)

Bring

Lcmggroovo

left

side

OF

the

bobbin ®

as

far

as

it will

the

thread

lllllatliciaat insertion

0

Fig.2

X

BOBBIN THREAD (Fig.3)

on

go.

forward

the bobbin

toward

winder

the

bobbin

Wrq

ctiJcction

X

and

wind

from

several

(3)

(

4) from

is

6..

ADJUSTMENT

(1)

right or

Push the and

The

filled

In

If

times

the

lever ® toward other

driving

then

start the

driven

the

driving

with thread.

case

the

thread

to

the

(2) Winding amount

below

in

clockwise

around

wheel

of

the

bobbin.

and

driven

machine.

will automatically be

wheel

and

OF

THE

uneven winding

dose

not wind evenly

left

as

may be required, then

of

side

wheel

stop

after

thread

direction

so

that

will

engage

free

the bobbin

BOBBIN WINDER (Fig.3)

on

the

bobbin, loosen

tighten

the

nut.

the

nut

CD

and

Fig.3

move

the bracket ®

to

the

Adjusting ® can

increase

or

decrease

the

amount

of

thread

wound

(3) Winding strength

Strength

of

the

winding

can be

adjusted

with

the

nut

CD.

-3-

on

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

shuttle

race

cap

and

the

(2) Installation:

Put

the

bobbin in the rotaly hook

the

bobbin

and

9...

ADJUSTING

For

ordinary

in the bobbin case

the

shuttle

stitching,

race

THE

so

that

cap.

THREAD TENSION (Fig.5)

the

tension

of

bobbin

case,

the

upper

Fig.4

THE

holder,

Permit

thread

and

BOBBIN

then

take

out

about 5 em wound

the

direction

lower

the

bobbin.

of

bobbin thread to

is

clockwise.

threads

should

be

hand

Then

equal.

down

close

freely.

the

rotaly

Install

hook

-4-

X

Upper

or

(1) Tension

Before

turn serrated nut on tension

if

you

desire

(2) Tension

The

lower thread tension is controlled by the larger screw near the end

bobbin

left

10

case.

(counter-clockwise)

..

ADJUSTMENT

(1)

Pressure

of

the

adjusting the tension

to

decrease

Turning

of

the

this

should

the

will

be adjusted

thread

lower

Upper

of

device

to the right (clockwise) to increase.tension and

tension.

lower

screw to the right

thread

decrease

OF

thread

the upper thread, be sure that presser foot

the

tension.

PRESSER PRESSURE (Fig.6)

according

Fig.5

(clockwise)

to

the

is

too

is

will increase the thread tension, while turning it to the

-weak

too

strong

is

let

down.

To

adjust tension,

to

the left (counter-clockwise)

of

the spring at the outside of the

material

(2)

Pressure presser screw

(3)

Sewing

minimum

to be

sewn.

on

both

foot

can be

has

been set before pressure required

the

walking

adjusted.

shipment.)

should

be

strength.

foot

(The

adjusting

adjusted

and

to the

the

-5-

Fig.6

11...

ADJUSTMENT

(1)

The

alternating

and

presser foot can be adjusted by

the

position relations

foot

lifting

mechanism.

(2)

Changing

link 2

(3) Adjustment should be changed according to the

the position relation

and

the crank 3

OF

movement

of

the parts

can

WALKING

on the wallfing foot

of

the presser

of

the

complete

the

FOOT

changing

connecting

adjustment.

AND

PRESSER

FOOT

(Fig.

7)

thickness

12

...

ADJUSTMENT

SEWING

(1) Adjusting the stitch length adjusting bolt can

change

(2)

Stitch

(3)

Setting "0"

of

the material to be

OF

sewn..

STITCH

(Fig.8)

the stitch length.

length can be adjusted between 0-llmm.

the stitch length adjusting bolt

can backstitch.

LENGTH

above

AND

Fig.7

FORWARD/BACKWARD

Fig.8

13...

FEED

The of

the can be (1)

Tum

to

its

(2)

height

DOG

feed

dog

needle plate.

done

the machine pulley so

highest

Loosen

the screw

by raising or lowering it.

should

as

follows:

point.

HEIGHT

be

1.5

Acljustment

of

(Fig.9)

mm

higher than the vertex

of

the feed

as

to raise the feed

the feed

dog

and

Then

dog

adjust the

tighten

height

the

screw.

dog

-6-

Fig.9

14

...

ADJUSTING

When

the

measurement

needle

plate

needle

and

THE

bar

is

between

the

needlepoint

HEIGHT

at

its highest

tlie.highest

is

point,

28

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

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 GA2688-1 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual