Mitsubishi LS2-210 Manuale

MITSUBISHI

Industrial

Sewing

Machine

TECHNICAL

INFORMATION

Automatic

Undertrlmmer,

Needle

Feed,

Single-Needle

Lookstitch

Model

LSS-210

ET-oes

MITSUBISHI

ELECTRIC

From the library of: Superior Sewing Machine & Supply LLC

CONTENTS

CONSTRUCTION..

2~3

1.1

Entire

Mechanism

1.2

Needle

Feed

Mechanism

SPECIFICATIONS

THREAD

TRIMMER

SYSTEM

5-7

3.1

Electric

Section

3.2

Machine

Head

Section

PREPARATIONS

BEFORE

OPERATION

8-9

4.1

Installation

Sewing

Machine

and

Motor

4.2

Adjustment

Machine

Stop

Position 9

ADJUSTMENTS

10-15

5.1

Thread

Trimmer

Mechanism

5.1.1

Construction

5.1.2

Cautions

adjustment

5.1.3

Installation

knife

base

and

fixed

blade

bracket

unit

5.1.4

Connection

knife

base

and

knife

driving

crank

5.1.5

Knife driving

shaft

and

parts

5.1.6

Installation

thread

trimmer

solenoid

unit

5.1.7

Installation

thread

trimmer

cam

5.1.8

Adjustment

knife

engagement

5.1.9

Adjustment

needle

thread

tension

releasing

amount

5.2

Adjustment

Needle

Thread

Remaining Length 14

5.3

Cautions

Installation

Touch-Back

Solenoid

5.4

Touch-Back

Pushbutton

5.5 Wiper 15

5.5.1 Height of wiper 15

5.5.2 Wiper operation position 15

5.6 Adjustment of Forward and ReverseStitch Lengths 15

5.7 Adjustment of Feed Dog Inclination 15

5.8 Timing of Feed 16

5.9

Relation

between

Needle

and

Feed

Dog

5.10

Adjustment of Needle Feeding

Amount

5.11 Hook, Bobbin Case,

and

Bobbin 19

5.12

Applicable

Table

TROUBLESHOOTING

From the library of: Superior Sewing Machine & Supply LLC

CONSTRUCTION

1.1

Entire

Mechanism

Major

Part

Names

Arm

shaft

Take-up

lever

Thread

regulator

10. Needle

bar

supporter

13.

Presser

foot

16.

Feed

rock

shaft

crank

(left)

19.

Feed

rock

shaft

22.

Balance

wheel

25.

Connecting

rod

(feed lifting)

28.

Vertical

shaft

31.

Hook

shaft

34.

Thread

trimmer

cam

Pretension

5. Presser

bar

spring

Thread

guide

11.

Presser

bar

14.

Eccentric

shaft

17.

Feed

dog

20.

Thread

guide

23.

Synchronizer

26.

Reverse

sewing

lever

29,

Feed

lifting

rock

shaft

32.

Thread

trimmer

solenoid

3. Presser

bar

regulating

thumb

screw

Oil

braid

holder

Presser

bar

lifter

12.

Needle

bar

15.

Feed

bar

18.

Feed

lifting

rock

shaft

crank

(left)

21.

Needle

feed

shaft

24.

Stitch

length

dial

27.

Connecting

rod

(feed rock)

30.

Lubricating

pump

33.

Knee

lifter

From the library of: Superior Sewing Machine & Supply LLC

1.2

Needle

Feed

Mechanism

Part

Names

Needle

feed

shaft

Link

Needle

bar

supporter

guide

10.

Feed

bar

13.

Feed

dog

16.

Needle feed

shaft

metal (right) 17. Washer

19.

Needle

feed

Rod

20.

Needle

feed

driving

crank

22.

Eccentric

Set

23.

Feed

rock

crank

(right)

15 16

Needle

feed

shaft

metal

(left)

Set

Needle

bar

supporting

shaft

metal

11.

Eccentric

shaft

14. Needle feed

rock

crank

(right)

Needle

feed

rod

crank

(left)

Needle

bar

supporter

Needle

bar

guide

crank

12.

Feed

rock

shaft

crank

(left)

15.

Collar

18.

Retaining

ring

21.

Set

screw

24.

Feed

rock

shaft

From the library of: Superior Sewing Machine & Supply LLC

SPECIFICATIONS

—Model

Item

— ^

LS2-210-MIT

LS2-210-MITW

Material

weight

Light

medium

Max.

sewing

speed,

spm

5,000

Max.

stitch

length,

Needle

bar

stroke,

31.8

Presser

foot

stroke,

Knee

lifter/Manual

11/5

Needle

DBX1-2#14

Hook

Fully-rotating

automatic

lubrication

(for

thread

trimmer)

Bobbin

case

With

idle

running

prevention

spring

Bobbin

Made

alumininm,

for

thread

trimmer

Thread

trimmer

Rotary

scissoring by

left

movable

knife

and

right

fixed

blade

Thread

trimmer

starting

Solenoid

actuation

Knife

drive

Cam

drive

Touch-back

Wiper

-O

Table

Motor

CA-Z402E,

CB-Z402E

Control

box

LE-M-140

Setting

speed

max.

r.p.m.

4,000

medium

1,700

low

250

thread

trimmer

200

switch

OFF

Motor

pulley

50Hz

0120

60Hz

0100

From the library of: Superior Sewing Machine & Supply LLC

THREAD

TRIMMER

SYSTEM

3.1

Electric

Section

LS2-210-MITW

Part

Names

(T)

Sewing

machine

Balance

wheel

(7)

Wiper

solenoid

Control

box

Pedal

Phase

reversing

plug

(?)

Touch

switch

Synchronizer

(§)

Motor

(Q)

Machine

cord

plug

Switch

panel

Back

solenoid

Thread

trimmer

solenoid

(9)

Drive

pulley

Synchronizer

cord

plug

POWER

ON/OFF

pushbutton

From the library of: Superior Sewing Machine & Supply LLC

3.2

Machine

Head

Section

(1)

12 13 14

15 16

Part

Names

Thread

releasing lever 2.

Flexible

wire

Knife

helding

bracket

saddle

Movable

knife

(left)

7. Knife driving

crank

Cam

follower

crank

(1)

10.

Stopper

11. Fixed blade mounting bracket

13. Knife base (left) 14. Knife driving

shaft

16. Flexible wire driving lever 17.

Solenoid

for

thread

trimmer

Thread

releasing

bracket

Fixed

blade

Cam

follower

crank

(2)

12.

Link

15.

Coil

spring

From the library of: Superior Sewing Machine & Supply LLC

3.2

Machine

Head

Section

(2)

Part

Names

Cover

for

wiper

mech

4. Coil

spring

Wiper

shaft

10.

Switch

for

touch

back

13.

Arm

side

cover

16.

Bushing

19.

Reverse

sewing

crank

22.

Spring

holder

Switch

for

wiper

Link

Wiper

11.

Push

button

lever

14.

Plunger

17.

Feed

regulator

cam

20.

Reverse

sewing

lever

23.

Solenoid

bracket

15 16

Solenoid

for

wiper

6. Wiper

bracket

Hinged

12.

Solenoid

for

touch

back

15.

Link

18.

Spring

retainer

21.

Shaft

for

reverse

sewing

shaft

From the library of: Superior Sewing Machine & Supply LLC

PREPARATIONS

BEFORE

OPERATION

4.1

Installation

Sewing

Machine

and

Motor

Balance

wheel

Synchronizer

Face

Plate-*

Phase-reversing

plug

LIMI-STOP

clutch

motor

Control

box

Plugs

from

machine

Rubber

pad

POWER

ON/OFF

switch

Switch

panel

Passing the Machine Cords

Round

hole

table

Switch

panel

,.-1-

CLUTCH

BRAKE

SPEED

NEEDLE

POSITION

Wiring between sewing machine

and

control

box

Note:

Beforeplugging

unplugging,

sure

turn

off

the POWER

ON/OFF

pushbutton.

Pass two cables from

the

sewing machine through the

round

hole

the

table

and

connect

the two

plugs

into

the

respective

plug

receptacles.

From the library of: Superior Sewing Machine & Supply LLC

4.2 Adjustment of Machine

Stop

Position

After thread trimming iscompleted by

heeling

the pedal,the

sewing

machine

isbroughtto a stop with the

timing

mark

(B)

aligned

with

the

first

timing

mark

©.

The

sewing

machine

fully

factory-adjusted.

However,

if the

marks

are

misaligned

than 3

mm,

adjust the setting position of

light

shielding

disc

described

below.

[Preparation]

1. Disconnect

the

plug (12 pins) of cord, which comes

out

of the machine head, from

the

controller.

2. Remove

the

synchronizer

cover.

3. Operate the sewing machine and stop it

the

needle UP position. In this state, make

the

following

adjustment.

[Adjustment]

1. While

holding

the

light shielding disc by

hand,

turn

the

balance

wheel

match

the

timing

marks

(B)

and (C).

2. Perform

the

toe-down

and

heeling

operations

pedal several

times

check

the

stop

position

has

been

stabilized.

3. When

the

stop

position

has

been

stabilized,

connect

the

plug

(12

pins)

coming

out

the

machine

head.

Light

shielding

disc

Sencond

timing

mark

First

timing

mark

From the library of: Superior Sewing Machine & Supply LLC

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