HIGHLEAD GC22618-1B User manual

iii.

® HIGHLEAD

GC22618-1B

Cylinder-Bed Unison Feed

Sewing Machine

INSTRUCTION MANUAL

CATALOG

From the library of: Diamond Needle Corp

Safety precautions:

When turning the power on, keep your hands and fingers away from the

area around/under the needle and the area around the pulley.

2) Power must be turned

off

when the machine is not in use, or when the

operator leaves the seat.

3) Power must be turned

off

when tilting the machine head, installing

removing the

"V"

belt, adjusting the machine, or when replacing.

4) Avoid placing fingers, hairs, bars etc., near the pulley,

"V"

belt, bobbin

winder pulley, or motor when the machine is in operation.

5) Do not insert fingers into the thread take-up cover, under/around the

needle,

pulley when the machine is

operation.

2. Precautions before starting operation:

When a new sewing machine

first turned on, verify the rotational

direction

the pulley with the power on.

2) Verify the voltage and phase (single or three) with those given on the

machine nameplate.

3. Precautions for operating conditions:

Avoid using the machine at abnormally high temperatures (35°C or

higher)

low temperatures (5

lower) .

2) Avoid using the machine in dusty conditions.

4. Specifications:

Max. Sewing Speed (rpm) 2,200

Needle

DPX17

22#

Needle Bar Stroke (mm) 34.2

Thread Take-up Lever

~troke

(mm) 72.1

Max.Stitch Length (mm) 6

Presser Foot Stroke

Byhand(mm)

By knee (mm)

Alternating Movement (mm) 2.0-6.0

From the library of: Diamond Needle Corp

Preparation

before

starting

operation:

CleaniDg1he

machine

Before leaving

the

factory,

the

machine

parts

are

coated with

rust-preventive

grease,

which

may

hardened

and

c:ontamioated

dust

duringstoJage

and

shipment. Thisgrease must

removed withgasoline.

Examination

Though

evay

machine is

inspeded

and tested slricdy before leaving the

factory, the machine parts

may

loose

deformed

after long distance

banspotlalion.

joiL A thorough examination must

performed after

cleaning

the

machine..

Tmn

the balance wheel

see

there is running

obsbuclion, parts collision, uneven

resislance

abnormal noise.

these

exist,

adjuslmcot

must

made

accordinglybefore run-in operation.

Lubrication

When

new

machine

begins

used

old

machine which left

out

use

for

a long time is

used

again,

must

lubricated fully.

(fhe

spots

wbich

anowheads

~need

lubricated.Fig.l)

Please

use~

spindle

oil

Please

ap6ft

pnsser

foot

wheo

the

machine

operated without

material.

Fig.

From the library of: Diamond Needle Corp

Run-in

operation

new

machine runs

a low speed (1600rpm)

for

about a month after

being lubricated sufficiently, each

parts will achieve its best state. Then

increasing speed

the maximmn according

the natme

the work

musl

done.

How

attach

a needle (Fig.2):

Note:

Beforeattach the needle, be

sure

tmnthe

power

switch

ofi.

This machine

needle size is DPX17

#122.

Needle

size

must

be selected

according to the thread rightly. (Thread

need

pass

the

pinhole

the needle

freely.)

Insert

the

needle

until

boaoms.

and

tighten

the

screw keeping

the

lang

groove

the

needle

facing

1he

left:.

Longgroove

facing

the

left X

Fig..2

Winding

the

lower

thn2d:

(Fig.3):

1) Push a bobbin on

r--------------.,.

the

bobbin

winder

spindle

(3)

far

will go.

Pull

out

the

thnnn and wind thread

around the bobbin

for

several

circles clockwise;

F"rg..

From the library of: Diamond Needle Corp

-----

3) Push the lever 4 backward so that the wheel

the pulley touches the

"V" belt, then start the machine.

4) The pulley will separate from the "V" belt automatically after the

bobbin is filled with thread.

8. Adjustment

the bobbin winder: (Fig.3):

In case

uneven winding

Loosen the screw 5

the tension bracket and move the bracket to the

right orto the left as may

required.

2) Adjustment

the

amount ofthe thread

Adjusting screw 6 can adjust the amount

the thread. Tightening the

screw will increase the amount, otherwise the amount

the thread will

decrease.

3) Winding strength

Adjusting the nut 7 can adjust the winding strength.

Adjusting screw 6 can adjust the amount

the thread. Tightening the

screw will increase the amount, otherwise the amount

the thread will

decrease.

How

to route the upper thread (Fig.4):

Raise needle bar to its highest possible position, and perform threading as

shown in Fig.

Fig.4 Fig.S

From the library of: Diamond Needle Corp

10. Removing and inserting the bobbin (Fig.5):

Taking out the bobbin: open the cover, take out the bobbin.

2) Inserting the bobbin: replace the bobbin into the shuttle bobbin case,

shutdown the cover. Be sure to make the bobbin rotate counterclockwise and

pull out the thrum.

11.

Adjustment

the thread tension (Fig.6,

8):

The tension

the upper and lower

thread must be equal so as to adopt normal stitch.

(Fig.6 a)

2) Tension

the upper

thread (Fig.7)

Before adjusting the

tension

the upper thread, it

should be certain that the

presser foot

let down but

not in other position.

Adjusting the thumb nut can

adjust the tension

the

upper thread. Rotating the

thumb nut clockwise, the

tension

the upper thread

will increase. Otherwise, the

tension

the upper thread

will decrease.

3) Tension

the lower

thread (Fig.S)

Turning the large screw

clockwise will increase the

tension

the lower thread.

Fig.6

T]cJCJif:fOC!CJ-

Fig.7

Fig.S

From the library of: Diamond Needle Corp

Otherwise, the tension

the lower thread will decrease.

12. Adjustment

presserfoot pressure (Fig.9):

Pressure should be adjusted according to the

material to be sewn.

2) Pressure on both the walking foot and the

presser foot can be adjusted.

Sewing pressure should be adjusted to the

minimum required strength.

Fig.9

13. Adjustment

walking foot

and

presserfoot:

1) Adjustment

alternating movement (FiglO):

(I)

The alternating movement on

...---------------.....,

the walking foot and presser foot can

be adjusted by using adjusting dial

located on the top cover.

Dial

(2) Face the desired number

printed on the dial to the matching

mark located on the top cover. The

number printed on the dial represents

the possible protrusion

the walking

foot and presser foot from the throat

plate when the alternating movements

on these are evenly set.

Presser foot

(3) The alternating movements

can be readjusted

to 2.0-6.0mm.

~Walking

foot

kto-5.~

?????

Fig.IO

change the balance

the alternating movements between the

walking foot and presser foot (Fig.ll):

(I)

increase the rise

the walking foot and decrease the rise

the

presser foot:

Remove the rubber plug

top cover.

From the library of: Diamond Needle Corp

® Rotate the pulley until the presser foot

slightly raised from the throatplate.

@ Loosen screw

"A"

(on the right side)

@ The built-in spring pulls down the

presser foot until it makes contact with the throat

plate. Tighten the screw "A".

@ After this adjustment, the protrusion

the presser foot has been decreased by a set

distance. And the same distance has increased

Rubber plug

•&I;

shaft crank

the vertical motion

the walking

foot.

Fig.

(2) As a contrary case (1) ,

decrease the rise

the walking foot and

increase the rise

presser foot as follows:

Fist, rotate the pulley until the walking foot is slightly raised from the

throat plate. Next, loosen screw "A". Finally, tighten screw "A". This decreases

Lte

rise

the walking

foot.

3) Installing the feed

regulator

bracket

(Fig.12):

Note:

the feed

regulator bracket

poorly

positioned,

the

resultant

alternating movements may

be too short

long,

causing defective machine

operation.

(1) Set the clearance

between special screw

"A"

located on the regulator stud

and the side wall

the

machine

arm

to 26.5mm as

Fig.12. Fig.l2

From the library of: Diamond Needle Corp

(2) With the feed regulator stud held as explained is step (1) above,

adjust the feed regulator bracket. This adjustment should insure a clearance

12mm between the periphery

"B"

located on the feed regulator bracket

and the top cover mounting face located on the arm. Tighten screw "C".

Feed

pitch

adjustment

walking foot (Fig.13):

The ratio

the upper feed amount

(of

the

walking foot) to the lower feed

amount

(of

the feed dog) has been adjusted to 1:1. Hawe¥er,lhe..walking.

fo.ot

feeding amount can be increased

decreased depending

the operating

conditions. Loosen the nut located on the upper feed rock shaft crank (left), and

shift to adjust the position

the pivot bracket

upward

downward.

Upper

position-Feed

pitch-Small

Lower

position-

Feed

pitch-

Large

Fig.l3 Fig.l4

14.

Adjustment

stitch length

and

reverse sewing

(Fig.14):

change the stitch length, rotate the stitch length adjusting dial.

2) Pressing the stitch length adjusting lever for reverse stitching.

15. Safety clutch device: (Fig.15,

16, 17,

18):

Safety clutch device is installed to prevent the hook and cog belt from

From the library of: Diamond Needle Corp

damage in case

e thread is caught into the hook when the mach

e is loaded

abn

orma

y during operation.

1) Function

safety clutch.

(I)

When

e safety clutch acts, the

cog

belt pull

will

unloaded.

Then

the rotation

shaft wi

stop.

The

shaft only wi

rotate. Stop the

ope

ration

machine.

(2) Clean the thread thoroughly

caug

ht into the hook.

(3) Turn the

cog

belt hub by hand, and check

Whether the hook shaft r

otates

ghtly and

properly, place the clutch dei

as follows.

Fig.

Fig. l6

2) How to

set

the

safety clutch.

( I) Wh

e pressing

the

push button on the opposite side

bed by

left hand, turn the balance wh

l sl

ly by

ght hand away from

u as sh

in the

gure.

(2)

The

lance wheel will stop by

the

gear plate, but

tum

the

balance

wheel more firml

(3)

Relea

the push button.

(4) As shown in the Figure, the safety clutch device is set.

3) Force applied to

the

safety clutch

(I)

The

force

app

to the safety clutch is the smallest

when

the white

mark

the eccentric pin faces the

nter

the

lower shaft.

The

force

proportiona

y increases

the white mark faces the outsid

From the library of: Diamond Needle Corp

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