Mitsubishi DN-275, DN-275-20 Instruction Manual

INSTRUCTIONS.,

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MITSUBISHI

INDUSTRIAL

SEWING

MACHINE

TWO

LOCKSTITCH

SPLIT

•

rmMiTSUBiSHi

WEEDLE

NEEDLE

MODEL

HIGH

NEEDLE

BAR

: ON-275

MACHINE

: DN-275-20

ADVANCEDANDr.VERADVANCING

ELECTRIC

SPEED

FEED

Thank

you

for

your

purchaseof"Mitsubishi"

DN-275. Kindly read

DN-275

tion

case of

machine.

for

manual

your

with

ready

you

troubles

this

Instruction

reference.

for

your

caused during

INDEX

And

ready

Manual

keep

this

information

operation

machine

for

instruc

in

of

Specifications

1. Specifications 2

2.

Name

and

numberofthe

accessories 2

3. Name of main

Preparation

of

parts)

1.

Place

2.

for

Howtomount

3. Howtomount

4.

Howtoconnect

foot

pedal

5.

Howtomount

parts

for

operation

installationofmachine

the

(installation

machine

motor

bobbin

assembly 4

6.

Howtomount

the

accessories

table 5

Head

holder,

knee

lifter

Pedal

system

presser

bar

assembly

lifter

assembly 5

Oil

pan.

Vibration

preventing

rubber

3.

Lubrication

before

startingtosew

1. Oiltobe used 8

2. Oilingto oil reservoir g

3. Oiling to main parts 3

4.

Howtoadjust

5.

Adjustmentoflubrication hook

6. Precaution before

Howtooperate

1. How to select

2. Howtoattach

3.

Howtothread

the

lubrication...9

operation

the

machine

the

th read 1q

the

needle

the

upper

thread

4.

Howtowind

on

the

bobbin

the

lower

thread

head

lever

winder

on

for

. . .9

.4

and

10

11

5.

Howtoadjust assembly

the

bobbin

winder

11

6. How to place the bobbin into the

rotating

7.

hook

2

Howtolead

8. Sewing

9.

Stoppingofthe

the

lower

start

and over 13

needle

thread..-12

bars

11

(left

and right) 14

10.

Angleofthe

stitch

11.

4

Adjustmentofstitch reverse

5.

Stitch

adjustment

1.

Adjustmentoflower

tension

2.

Adjustmentofupper

tension

3.

Adjustmentofthe

length

stitching

corner

and

stitching

length

Proper

thread

height

and

14

and

15

timing

15

ig

of feed

dog and pressure of presser foot -i 7

4.

Howtoremove

-7

9

5.

6.

7.

8.

9.

10.

rotating

Proper hook

and

Up-down needle Proper

hook

and

Proper hook

and

Proper Proper

timing

positionoffeed

and

needle

between

take-up

between

case

between

place

hook

needle

adjustmentofthe

thread

bobbin

timing

the

rotating

the

rotating

lever..20

the

rotating

opener...

regulator

the

needle

18

19

20

21

and feed dog 22

6.

Maintenance,

Trouble

and

Repairing

1. Maintenance 23

2.

Oiling

3.

Howtofind

the

trouble

and

23

how

to repair 24

1.

Specifications Application:

Speed

Needle

bar

Thread

Hook:

Presser

Available

Feeding

Stitch

Needles:

Reverse

Stitch

Lubrication:

Table:

Motor:

2.

Name

Needle

Bobbin

Screw driver (large, middle,

small)

Vibration ubber

stroke:

take-up:

far

stroke:

needle

system:

length:

stitching:

length

and

Numberofthe

(DP x 17)

Preventing

gauge:

adjustment:

....

each

Nail 9

8 pcs.

4

1 pc.

4

pcs.

1.

Specifications

Corner

Max.

32mm

Slide

stitchingofthe

3500

spm

type

thread

raincoat

(DN-275),

take-up

Max.

and

3000

jeans

spm

(DN-275-20)

Horizontal rotating hook, fully a utomatic lubrication type

7

mm

1/4"

Double

0 ~

DPx17(135

Reverse Push Semi-automatic

"DN"

"Mitsubishi"

accessories

Hinged)(2)

Screw

Tweezer

Hexagon

Roller

Bobbin

Vinyl

(standard),

eccentric

5mm

button

type

set

cover

(DN-275).

lever

system

table

wernch

winder

1/8",

mechanism

X 17)

type

lubrication

Clutch

assembly

3/16",

0 ~

7mm

system

motor,

400W (1/2 HP)

each

2pcs.

each4pcs.

1

1 pc.

1

. 1

1 pc.

3/8",

(DN-275-20)

Knee

Oil

pc.

Oil Oil

set

Cotton

set

Oiler

1/2"

lifter

pan

can bottle

stand

assembly..1set

1 pc.

1

pc.

1 pg.

1

set

1

pc.

3.

Nameofthe

Top

1.

2.

Thread

3.

Thread

4.

5.

Upper thread guide (set)

Thread

6.

7.

Oil

Thread guide

8.

9.

Top

Balance

10.

Front

11.

Arm

12.

13.

Reverse

14.

Bed

15.

Stitch

button

cover

take-up

take-up tension

guide

plunger

cover

regulator

main

wheel

stitch

parts

guard

regulator

(top

lever

push

of arm)

Thread

16.

17.

18.

19.

20.

21.

22.

23.

24.

25.

26.

27.

28.

29.

30.

31.

regulator

Stop

lever

Push

lever

Slide

plate

Slide

plate

Neelde

plate

Hook

s^dle

Slide

plate

Presser

foot

Needle

clamp

Neelde

bar

Needle

bar

Thread guide (lower) Thread guide (middle)

Thread

controller

Thread guide (upper)

(right) (center)

(left)

holder

nut

Face

32.

33.

34.

35.

36.

37.

38.

39.

40.

41.

42.

43.

44.

set

plate

Knee

lifter

Knee

iifter

Knee

lifter

Presser

bar

screw

Knee

lifter

Knee

lifter

Connecting

Connecting Connecting

Presser

bar

Presser

bar

Collar

bar

lever

(2)

lever

(1)

adjustoble

spring

lever

bolt

link

plate stud

lifter

plate

spring

2. Preparation for operation (Installation of

machine)

1.

Place

for

In

ordertoensure

machineathigh

the

machine

floor.

2.

Howtomount

1. Please

the

2. Please

hinge

3.

Howtomount

1,

Motorismounted

washers

2,

Motor

that

after

motor

3,

Then,

motor

4.

Howtoconnect

pedal

1.

Power

the

inclination

the

proper

2.

The

shown

3. As

shown

pressure strong,

adjust

ing

rod.

installation

set

back

set

and

shouldbemountedona

enables

aligning

pulley

connect

cord

on

best

in Fig. a)

the

of

smooth

speed

should

the

machine

the

hinge

of

the

hinge

hookonthe

the

motor

nuts.

to

the

slot.

power

extended

the

motor

the

treadle

of

angle.

inclination

in Fig.

on

the

tipofthe

treadle

length of

machine

operationofyour

without

be

setonwell-leveled

head

platetothe

bed

with

platetothe

table.

with

accessory

pass

the

balance

treadleisnot

belt

wheel

supply

from

switch.

lever

willbereduced

is at

30to40°

b).incase

gest

difficult.

the

treadle

vibration,

hole

the

screw.

table

bolts,

position

straight

slot

cord

and

thefoot

made

the

treadle

toesistoo

Therefore,

connect

on

and

if

at

as

Hinge

plate

Motor

Balance

pulley

wheel

20°~30°

5.

Howtomount

1.

Accessory mountedInparallel

table.

2.

And,itshouldbefixed

so

that

touch

with

leverispushed.

the

bobbin

bobbin the

belt

winder

with

winder

when

belt

with

the

assembly

should

holeofthe

two

pulley

stop

screws

gets

latch

be

in

Stop

Belt

Bobbin

winder

latch

hole

Bobbin

winder

assembly

pulley

lever

Screw

6.

Howtomount

Head

holder

1.

Head

holder

holdofthe

2. Head

Knee

1.

2. Mount it properly

holder

when

you

sideofthe

or

the

lubrication

lifter

mechanism

The

knee

withtolift

youtopromote Remember

3. adjustment tion

heavy to

foot.

1.

Placeofmounting

Mount table

indicated

2.

Orderofmounting

(1)

The

on

screw

measures.

knee

(2)

The

bracket screw

be

(3)

Set

following

tentatively

1)

(4)

After tenstatively.

to

(5)

After

extension

bracket

fix

screw.

(6)

The

plate connecting bar. And, insert

ittothe

the

accessories

should

be

backofthe

is holding

wishtolookatthe

arm

bed,

lifter

and

inserted

table.

the

during

the

of

the

machine.

mechanismisequipped

down

the

onto

the

efficiency.

that

improper

would

render

operate

the

and

properlyonthe

with

screw

conformingtothe

measures.

kneelifter

the

properlyasper

lifter

one

inserted.

the

Rod,2)

the

knee

bracketismounted

back

of

the

(At

the

front

bracket,

sideofthe

should

so

fixing

knee

checking

are

extension

that

the

following

order

respectively;

Rod,3)

the

above

Insert

lifter

bracket.

and

connected

be

and

Rod &4) Spring

the

tightly

plateisfixedtothe

rod

3).

for

the

table

in

machine

mounting

adjustment

presser

table

knee

head,

reverse

bar.

enabling

opera

fatigue

backofthe

table

indicated

sideofthe

knee

set

with

fix

four

extension

knee

properly,

with

lifter

them

items

lifter

the

spring is set.)

extension

itemsinthe

the

whether

knee

the

and

the

can

the

Head

holder

U

Center

line

of

knee

bracket

a

lifting

knee

lifter

bracket

(front)

hole

for

spring

knee plate—j

®

rod

knee

connecting

Extension

bar

lifter

bracket

(back)

(7)

spring

(8)

After

3.

Adjustment

(1)

Stopper place

pushed. position, the work

under

(2)

Positionofthe

The

in

and

for

and

(3)

Positionofthe

plate

•

While

downward,

adjust

to

•

After

the

•

The

the

bracket.

•

After

Insert

the

hole

(front).

knee moving

assembly, the operated

Positionofthe

(back).

accordance

lifting

the

is

adjustedbymeansofloosening

(C).

endofspringtothe

of

the

knee

The

shouldbeconnectedtothe

plate

connucting

the

completionofall

please

knee

lifter

properly.

where

Therefore,atthe please

stopper

to

the

knee

plate

postureofoperator.

easy

operating

tighten

connecting

the

presser

the

size

rod

and

Fig, as

adjusted

screw

(B).

inclination of

screw

(C)ofthe

adjusted,

lifter

other

endofthe

bar,

rod

3).

check

assembly

stopper

works

the

pin,sothatitmay

knee

the

loose

shown.

pin (1) —

for

fixing

knee

fix

the

stopper

projection

lifter

knee

plate

shouldbeadjusted

with

the

structure

Adjust

of

screw.

rod

and

the

bar

foot

descends

screw

"A"sothat

presser

rod

properly,

the

lifting rod

knee

tighten

the

bracket

wheter can

plate

bracket

operator

(B)

tighten

after

the

proper

point

- - •

knee

and

the

comes

lifter

screw

be

is

of

3m/ml-^

it

Knee

plate

connecting

bar

Lifting

rod

©Screw

Pedal

1.

2.

system

presser

When

you

lifter

lifting,

Because,

(as When

system

desiretooperate

by

treadle

please

pedal

per

illustration)isavailable.

ordering,please

presser

lifting

assembly

pedal,

give us an

system

presser

indicateas"Treadle

lifter

set,

SM31103".

not

the

extra

presser

by

lifter

knee

order.

set

1.

Howtomount

(1) Removeall the knee lifting link and

lifting

rod

except

for

link (1) (R) and spring (S).

(2) Fix the presser lifting plate (A) to

the

Knee

screw

and

bed.

the

with

the

lifting link

high.

and

please

should

adjust

operator

it on

lifter

(B).

insertitto

nuttothe

the

screw

collar

the

presser lifting treadle

lifting

take

notbecurved.

the

angleofthe

lengthofthe

can

the

holeofthe

nottoobject

the

(3)Mount the collar on the lifting

rod,

the

(4) Mountthe nut onto the lifting rod.

(5) Fix

plate

(6) Fix the position of the stopper

with

knee

too

(7) Connect

pedal

time,

chain

2.

Adjustment

Please

pedalbythe

that

the

Oil

pan

Mont

nails

so as

lifter

mechanism.

Knee

link

(11

the

presser lifting

(Gl.

(F),sothat

may

not

rod.

care

easilystep.

(R)

hold

be lifted

At

that

treadle

chain,

fable

the

lifter

with

the

this

the

by

knee

of

Cham—

Treadle

pedal

for

Motor

Treadle

pedal

for

presser

bar

lifter

so

Vibration

preventing

The

vibration-preventing

usedtoprevent vibrating smooth

operatlonofthe

these

rubber

the

tableasshowninFig.

a)

Achievespot

and

corners

give

smooth

where

b) Nail

rubbers

of

the

rubber

the

thereby

the

machine

machine.

four

to

corners

and

at

facingof20mm

13mm

depth

of

the

spot

facingisachieved.

the

downatthe

tableasshowninFig.

at

table.

facingtothe

vibration-preventing

Be

four

rubber

provide

the

sure

face

corners

is

from

Fit

of

radius

four

to

A

V/

5.5m/m

Vibration

preventing

rubber

20R

13m/m

3.

Lubrication

before

startingtosew

Oil

plunger

darner

1.Anoiltobe

Alwoys

use a

machines.

2.

Oilingtothe

ILublication tank)

*

Oil

tankinthe

(1)

Please

removing

plunger.

(2)

Volumeofoils uptothe

indicator.

•

Oil

tankinthe

(1) Please fill

oil

toword

(2)

Volumeofthe

with

level

Note: When

filled the is

freezed

always oilsbychecking

the

of

•

Oil

reservoirinthe

(1)

Remove

and left, as'shown in Fig.

(2)

Remove

oil

(3)

Volumeofoils uptothe

used

white

spindle

oil

reservoir

for

Arm,

Bed,

arm

fill

the

shouldbefilled

red-markHof

bed

the

filler

uptothe

indicator.

the

with

lubricationtothe

stopped

oils

the

arm

reservoir

oil reservoir

hole

after

the

other

volumeofthe

upto

and

up.

Therefore,

take

caretosupply

through

and

the

hook

the

slide

the

oil guages

through

markofoil

oils

the

shouldbefilled

oils

for sewing

(oil

tank)

Hook

saddle,

oil

resen/ior,

press

stud

lay

dawn

side.

shouldbefilled

red

markHof

oilsisnot

the

red

mark

main

the

machine

you

shoula

the

volume

oil

indicators

bed.

saddle

piatetothe

and

oil

filler

gauge.

oil

after

for

with

oil level

through

the

head

L,

parts

is

the

of

right

fill

the

hole.

with

oil

Oil

indicator

Oil

filler

hole

oil

Oil

indicator

Note:

When

the

andisnot

mark,

oils

and

volumeofthe

the

supply

little

the

hookisstopped

freezed up.

alwaysbecarefulofthe

the

3. Lubricationtothe main

oils

filled

lubricationtothe

and

the

Therefore,

the

parts

get

withupto

hook

please

vlume

of

oils

properly.

- - - See page 23

is

8