Juki DLM-522 Instruction Manual

BE5220SOBOA

MODEL

HIGH SPEED, SINGLE

INDUSTRIAL

WITH

DLM-522

NEEDLE,

SEWING

MECHANICALLY

MACHINE

BUILT-IN

Instruction

aJUICI

LOCKSTITCH

TRIMMER

Book

TOKYO

JUKI

INDUSTRIAL

OLMS22

CO..ITO.

Thank you very much for purchasing JUKI'S MODEL DLM-522, high speed, single

needle industrial sewing machine

This is a sewing machine with built-in trimmer and can attain a sewing speed of up

to

4,500

s.p.m. As the main the sewing efficiency is greatly

This is a machine with wide areaofusage and best suited for sewing light heavy weight

materials.

functionofthis machine is to

equipped

upped

with

trim

to increase

mechanically built-in trimmer.

the

garment

the

during the sewing

production.

operation,

Before using this machine, please read and digest the INSTRUCTION BOOK thoroughly

to produce best results and to prolong the life of the machine.

DLIVI-522

Sewing

Stitch

speed

length

adjuster

SPECIFICATIONS

4,500

s.p.m.

0-4

mm(5/32"|

Dial

system

Reverse sewing • • • - Reverse lever system

Needles DBxl

Lubricating

oil New

Trimming width • • • • Standard

(16x231,1738)

Defrix

Other

(By special

Oil No. 1

3.2

mm(1/8"l,

4.8

mm(3/16")

order)

#11, #14,

6.4

mm(1/4")

iS'lS.

#18

DLM-522

CONTENTS

Page

Installing the oUreservoir • • • 2

Motor pulley and the belt 2 Cautions on operating the machine 3

Lubrication

1. Adjusting the oil supply to the face

part

2. The oil adjusting pin 4

3. Adjusting the oOsupply to the hook components 4

Threading the machine 5

Preparationof the bobbin thread 6

Inserting& Winding

Howtoinsert

The

thread

Adjusting the needle

removing

the bobbin case 6

the bobbin thread 6

the

bobbin

tension

thread

tension 7

Thread take-up spring 7

Adjusting the bobbin thread tension 7

Presser foot and feed dog 8

Adjusting The

the

pressure

presser

foot handlifter 8

of the

presser

foot 8

Heightof the feed dog 8

The stitch length 9

Adjusting

the stitchlength 9

Reversesewing 9

Pushingpressure of the feed lever 9

The

knife

Howto operate the knife 10

Howtoinstall

Changing

the

knife

the trimmingwidth 10

Inserting the needle 11

Installing and

Relation

removing

between

the

hook

sewing

hook 11

and

the

needle

Adjustingthe height of the presserbar 13

Adjustingthe amount of the thread take-up 13

Tableofgauges 14

3

g

6

10

12

(Note)

Due to improvements on the machine, some parts of the operational procedures of this

INSTRUCTION BOOK might be changed without notice.

-1

—

INSTALLING

Rubber

THE

cushion

OIL

m

RESERVOIR

As

such a way so that the 4 comersofthe groov ed part

reservoir.

1. Nail in

2.

shown

the

Place

of

the

in

the

figure,

set

the

of

the table will be supporting the

the2rubber

protruding

the oil

table.

partofthe

reservoir

cushionsinfront

table.

on the protruding part

reservoir in

to

Opeiatoi

MOTOR

Motor

Hertz

pulley

50

60

side

PULLEY

Hinge side

AND

THE

No.ofrotation

of

machine

4,650

s.p.m.

4,000

s.p.m.

4,540

s.p.m.

4,040

s.p.m.

BELT

Model

DLM-522

can sew at a high speed of

up to 4,500 s.p.ni. When connected directly

to the power source, use a 3-phase 400 W

(1/2HP)

Use a M

the

number

clutch

type

of

motor.

V-belt.

rotation

The

relation between

of

the

the dimensionofthe motor pulley is shown in

the table. (Effective diameter)

* The effective diameter of the motor pulley

means

the

of

the

motor

MTK-PVl

MTK-PO

MTK-PV090000

MTK-PV

diameterasmeasured

the

V-belt

machine.

Part

No.

of

pulley

10000

095000

080000

when

the

beltiswound

Effective

of

110

95

90

80

motor

mm(4-l mm(3-3/4") mm(3-35/64") mm(3-5/32")

machine

from

the

diameter

pulley

1/32")

with

center

around

2 -

CAUTIONS

1 Do

not

with

ON

OPERATING

THE

MACHINE

run the machine, under any circumstances, before the oil reservoir is filled up

fresh

oil.

2 Always

verse

rotate

direction.

the machine toward the operator. Do

3 This machine can run with a speedofup to

the speed to

about

4,000

s.p.m.

LUBRICATION

HIGH

Oil

mark

sieht

PLH-saa

LOW

mark

window

Oil

reservoir

not

run the machine in the re

4,500

s.p.m.

but

Before

operating

1. Fill up

Defrix Oil No. 1 uptothe

2.

Watch

go

below

the

and

the

oil reservoir

see

that

"LOW"

for the first

the

machine

with

mark

the

oil

mark.

month

JUKI

"HIGH".

level

does

drop

New

not

* Attach an oil-proof plate (J) to the oil-

reservoir,asshowninthe

operate.

3.

Under

normal

chineisrun

oil will

spurt

conditions,

afteritis filled up

against

illustration

when

the

oil sight window.

with

the

oil,

and

ma

the

(Caution)

1) When

the

oil gets

dirty,

change it

with

new,

fresh oil. If the oil plug of the reservoir is

removed,

2)

When

time or of s.p.m. machinetoget

oil will

the

machineistoberun

when

time,

run

for

about10minutes

come

out.

it was idle for a

the

machineat3,000-3,500

well-oiled.

for

great

and

the

allow

first

length

the

iV'

\'

Gj

1

Lubrication

Apply

marked

- 3 -

of

oneortwo

places

twiceaday.

the

knife

dropsofoil to

the

arrow

Oil adjusting

Oil

amount

gets

less

n

z

Oil

amount

I II I I

Needle

bar

Grooveofeccentric

Oil

adjusting

/

T

N^^Arm

shaft

Oil adjusting pin screw

Counterweight

Crank

crank

h

gets

11

more

1. Adjusting the oil supplytothe face

part

When adjusting the oil supply to the thread

take-up and needle bar crank components, remove the face plate and the oil prevent

ing plate and adjust by turning the oil adjusting

pin at the tipofthe main shaft.

1. When

2. When

(Caution)

The oil amount does

after

thisinmind.

2.

1.

2. When the groove is at the opposite side of

3.

the

comes

less.

sideofthe

the

The

markofthe

near

the

mark

crank,

adjustment,sowhen

oil

adjusting

oil adjusting

as shown in

and

the

oil

together,

the

The

side

the

oil hole, the oil

red

markonthe

without

the

crank,

the

oil

comestothe

the

oil

amount

not

change immediately

adjusting, have

has a carved groove

the

figure. When this groove

adjusting pin

holeofthe

oil

amount

the

carved

amount

oil

adjuster

groove.

main

gets

gets less.

amount

opposite

gets

shaft

more.

shows

gets

more.

come

the

Oil regulating valve

3.

Adjusting

components

The supplyofoil to can be adjusted by

the

hook

shaft.

the

oil

supplytothe

the

hook

the

oil regulating valve on

the

oil

amount

gets

more.

2. If this

- 4 -

amount

valve

is turned to 0 side (left), the

gets less.

hook

components