Singer 491UTT Manuale utente

SINGER

491UTT

From the library of: Superior Sewing Machine & Supply LLC

I -

.•

>-·.

~--·-

-~:

I .

•· - . .

---

·;·

'"'.,

·~

~~91uTT

AAachine

THE

SINGER

COMPANY

From the library of: Superior Sewing Machine & Supply LLC

avoid improper handling and

use

the

motor,

which

may

cause

trouble

shorten its service life,

read

this manual

carefully.

Please

keep this manual

for

future references.

CAUTION:

Static

electricity

will

damage some electronic

components in the

control

box. Refer service

circuit

boards

qualified electronic service

personnel.

TABLE

OF CONTENTS

Page

Subject

INTRODUCTION

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

2 CODE

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

INSTALLATION

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

ELECTRICAL

CONNECTIONS

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

OPERATION

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

6 ADJUSTMENTS

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

MAINTENANCE

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

8 HOW

CHECK

THE

DRIVE

UNIT

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

DIMENSIONS

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

BLOCK

DIAGRAMS

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

PARTS LIST

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

From the library of: Superior Sewing Machine & Supply LLC

ll:CODE·~

----~--

2-1.

Motor

U4053607

-01

Suffix

code

Voltage

code

Frequency

code

Phase

code

'--------Horse-power

code

'---------Series

code

-TABLE

TABLE

1•

Seriescode

TABLE

Horse-power

code

Pole

1750rpm

motor

1/2

Pole

3450rpm

motor

1/3

1/4

3/4

TABLE

3 Phase

code

TABLE

4•

Frequency

code

1 I

Smgle

phase

Three

phase 5

60Hz

50/60Hz

TABLE

Voltage

code

TABLE6.

Suffixcode

Belt

tightener

Lamp

tap

115

v 01

~f-_0__7

220

2'm\l_

_.03.

110/220

Dual

voltage

220/380

Dual

voltage

415

380

460

2-2.

Control

box

NC8122407

Function

code

--r'---Voltage

code

Series

code

(Machine

class)

TABLE

7 Series

code

2.~

2..3

591

machine

General

purpose

(Function

-[4-4

211/212

machine

-'l'Q.

457

machine

TABLE

Function

code

01 2

positioning

only

2 pos .

UTT,

Wiper

only)

USA

type

DIN

type

DIN

type

USA

type

USA

type

·TABLE5

_TABLE

TABLE7

t-mJ

2 pos.,

UTT,

Wiper,

Presser

foot

lift.

Manual

back

tack

;:-'

type

plus

switch

box

P/N

411872-001

'!d

type

plus

switch

box

411872-002

:;X;<

2--

type

plus

switch

box

P/N

411872-003

to/

U L

approved

CSA

approved

w/switch

From the library of: Superior Sewing Machine & Supply LLC

3-3

Installation

optional

switch

box

Install

the

switch

box

the

thread

stand

using

the

mounting

braket.

shown

fig.

adjust

the

position

the

switch

box

where

most

convenient

for

the

operations.

fig. 6

NOTE:

fig. 7

Thread

stand

Attach

the

connector

the

selector

panel

the

control

box

using

the

following

method.

(fig.

(1)

Cut

the

protective

cap P

along

with

dotted

line

the

Control

Box.

(2) Push

retaining

fingers

outward

and

insert

the

connector

the

switch

box.

Projection

connector

must

face

downward.

(3) Push

retaining

finger

toward

connector

lock

securely.

(4)

Run

the

lead

cable

from

connector

in such

manner

that

any

strain

the

con-

nector

definitely

avoided.

Connector

Protecttve

cap

N.G.

O.t::.

3-4

Installation

Knee

Switch

(211/212

machines)

The

knee

switch

placed so

that

the

operator's

right

knee

falls

between

and

the

knee

presser

foot

lift.

Locate

the

switch

and

bracket

shown

figure

that

the

operator

can

convenient-

operate

both

presser

foot

lift

and

the

separate knee

switch

without

excessive

movement

her

knee. Secure

switch

bracket

underside

table

with

screws

provided.

fig. 8

SCREW

ADJUSTMENT

FOR

CON-

VERTING

TWO

POSITION

UNITS

INTO

SINGLE

POSITION

UNIT_

OPERATE

AND

TRIM----.L.

WITH

THE

TREADLE.

BACK

OUT

THIS

SCREW

UNTIL

THE

SWITCH

ACTUATED.

From the library of: Superior Sewing Machine & Supply LLC

211/212 mach1ne

Power

supply

~Clutch/Brake

Foot

L1ft sw.

121,

Foot

L1ft

sol.

131

141

Synchron1zer

Back

Tack

121.

Back

Tack

sol

131

141

Needle

sw.

121.

Trrm.

sol

131

141

Sw1tch

for

Trrmmer

457 mach1ne

' Tension release sol.

121.

Needle

131

141.

Back

Tack

151 161

Synchron1zer

~Back

Tack

sol

121.

Trim.

sol

131

141

Foot

L1ft

sw.

121.

Foot

L1ft

sol

131 141

Needle

down

signal

NOTE:

for

the

details

each respective

connection,

please

see"BLOCK

DIAGRAMS"

4-4

Synchronizer

con'nections

Before

starting

operation.

insert

the

synchronizer

connector

into

the

corresponding

receptacle

the

connector

panel.

4-5

Connections

the lighting

fixture

Two

black

wires

are

provided

for

Volt

Watt

lighting

fixture

the

end cover

the

motor.

Please

connect

properly

when

will

be needed.

IMPORTANT:

USE

LAMP

ASSEMBLY

CERTIFIED

FOR

USE

WITH

SEWING

MACHINES

ONLY.

LAMP

CONNECTIONS

HAVE

FULL

SUPPLY

LINE

VOLTAGE

GROUND.

MINIMUM

CIRCUIT

CAPACITY

CONDUCTORS

AMPS.

AVOID

ELECTRIC

SHOCK

AND

SHORT

CIRCUITING,

THESE

LAMP

WIRES

MUST

INDIVIDUALLY

AND

SECURELY

INSU-

LATED

AFTER

CONNECTING

THE

LAMP

ASSEMBLY.

4-6 Changing

the

primary

taps

the

transformer

used

220V

240V

control

box

The

transformer

which

located

the

control

box

has

the

four

taps (

190V

-208V

-220V-

240V).

The

factory

sets

the

tap

rated

nameplate

voltage.

Before

starting

operation,

check

your

power

supply

and

necessary. change

the

connection

the

proper

tap

turning

the

voltage

selector

installed

the

control

box.

fig. 11

Voltage

selecter

switch

Control

box

From the library of: Superior Sewing Machine & Supply LLC

5-6

AUTOMATIC

BACK

TACKING

(Function

code

Control

Box

04,

and

24)

Back-tack

patterns

These

patterns

can be selected

manipulating

the

back-tack

switches.

Fig.

below

shows

the

respective

switch

positions

for

the

back-tacks

the

start

and

end

sewing.

back

tacking

Single

back

tacking

Double

back

tacking

Quadruple

back

tacking

fig.

BACK

TACK

&-U I I J

Start

I I I

l End

Pre-setting

the

stitches

back

tacking

The

number

stitches

for

each segment

(A,

and

the

back

tacking

can be ad-

justed

from

the

stitch

counter

switches

shown

Fig.

17.

desired

increase

the

number

stitches,

push

the

lower

button

the

required

number.

When

decreasing

the

number

stitches,

push

the

upper

button.

fig. 17

5-7

LINE

TACKING

fig.

STITCH STITCH

~~ ©~

·:&·~

©~

138

[!][!]

rnrn

~rn

IE IE

l!lli!

l!l!B

{!][!!

Funct1on

code

Funct1on

code.

(Function

code

Control

Box

14)

Switch

for

Iine

tacking

operation

..f!.,

1313

[ID[]J

ffili!

A+C

B+C~:O

The

line

tacking

can be selected

follows.

Funct1on

code

Push

the

switch

the

upper

position

indicated

left,

when

the

Iine

tacking

required.

Pre-setting

the

stitches

line

tacking

The

number

stitches

each segment in

the

forward

sewing

mode

can be

adjusted

the

stitch

counters

and

from

stitches.

(Simply

add

the

numbers

and

The

number

stitches

each segment

for

the

reverse

sewing

mode

can

adjusted

the

stitch

counters

Band

C same

way

above.

The

repeat

times

can be

adjusted

stitch

counter

from

From the library of: Superior Sewing Machine & Supply LLC

2) Details

pattern

sew1ng

Pattern 1

(Normal

sewing)

pressing the pedal

down,

the machine

will

start

the

sewing

with

start back tack (SBT)

the selection

SBT

During

the free sewing,

releasing

the

pedal

the

nutral,

the

machine stops at

the

first

needle

position

and

heeling back

the

pedal

the

intermediate

position,

Foot

Lift

(FT)

operated.

ill

By heeling back the pedal

fully,

the

machine

performs

the thread

trimming

(TRIM)

with

end back

tacking

(EBT)

the selection

EBT.

b) Pattern 2 (Basic

stitch

counting

-one segment

only)

pressing the pedal

down,

the mach1ne

will

start the

stitch

count

sewing (G)

with

SBT

the

selection

SBT. As long

the

pedal

kept

pressed

down,

the

machine

will

continue

the

stitch

counting

and com-

plete

the

pattern

sewing

with

TRIM

and/or

EBT

Except

the

period,

operator

can stop the

machine

anytime

releasing

the

pedal

the

neutral and can

TRIM

w1thout

EBT

re-

gardless

the

EBT

selection

Pattern 3

(Combination

pattern

1 and 2)

I Same

Pattern 2

the

point

® .

When the machine completed

the

pattern

the

point

® , the machine

will

stop

at the

first

needle

position

and FL

goes

up and stays

for

12 seconds

until

treadle

returned

neutral and pressed

down

aga1n

for

pivot-

ing

the

materials

longer FL

necessary,

heel

the

pedal back

the

intermediate

position.

ill

Same

Pattern 1

after

the

point

See

"Note"

in Pattern 6, 7, 8

for

the fine

adjustment

the

length

I .

1 f•g. 22

1 fig.

o/\:

I , '

D c

fig. 24

o/\ \

(

d) Pattern 4 (Repeat

pattern

1 fig. 25

I This

pattern

the repeat

pattern

2. Oper-

ator

can repeat

many

she/he wants.

The differences are;

the

point

® ,

continue

the pat-

tern,

the pedal

has

released

the

neutral once and pressed

down

again.

ii)

finish

the

pattern

with

TRIM

and/or

EBT,

the pedal

has

heeled back at

the

point®

iii)To

operate

FLat

the

point

® , the

pedal

has

heeled back

the inter-

mediate

position.

ill

See

"Note"

pattern

6, 7, 8

for

the

fine

adjustment

the

length

"G".

A B G

C G

X @

NOTE:

In Pattern 2, 3 and

the

stitch

counter

set

"zero",

the

sewing

will

not

be started.

the pedal

heeled back

fully

before

completing

the

TRIM

immediately

performed

without

EBT.

From the library of: Superior Sewing Machine & Supply LLC

fig.

SW3

L;==j

SW3-2

OFF

Option

SW3-2

Option

SW3-1 .

Not

used

Opt1on

Automatic

fin1sh

pattern

sev.,ng w1th

TRIM

and/or

END

BACK

TACK

same

pattern

Option

2 Free sew1ng

and

TRIM

and/or

END

BACK

TACK

heel1ng

the

pedal

same

pattern

Fine

adjustment

the

length

each

stitch

counting

seam

The

length

each seam

stitch

counting

can be

adjusted

follows;

a) Case

the

performed

seam

the

stitch

counting

shorter

than

required.

push

the

switch

for

manual

needle

positioning

(MNU-SW)

momentari-

which

located

the

switch

box.

Then,

the

machine

performs

ONE

stitch

foreward

the

low

speed.

(Fig.

29)

fig.

Case

fig.

Forward

adJustment

MNU-SW

the

performed

seam

longer

than

required,

use

the

switch

for

manual

back

tack

(MBT-SW)

adjust

the

length,

which

mounted

the

sew-

ing

machine.

this

case

the

machine

performs

ONE

stitch

backward

low

speed.

(Fig.

30)

' I

adjustment

NOTE:

the

adjustment

for

than

ONE

stitch

necessary,

repeat

above

until

the

required

length

will

performed.

this

mode,

both

switches

(MNU,

MBT)

function

different

way

from

their

own

functions.

From the library of: Superior Sewing Machine & Supply LLC

ADJUSTMENTS

CAUTION:

NEVER

MAKE

ANY

FOLLOWING

ADJUSTMENTS

WITH

"POWER

ON"

CAN

CAUSE

SEVERE

PHYSICAL

INJURY

HANDS,

ARMS,

ETC.

6-1. Adjustment

clutch air

gap

Turn

the

adjustment

screw

counterclock-

wise

·least

two

turns,

until

the

output

shaft

will

not

turn

freely

any

longer.

Turn

the

adjustment

screw

clockwise

carefully

until

the

shaft

just

begins

rotate

hand

(At

this

point,

the

clutch

air

gap

zero).

Continue

turn

the

adjustment

screw

120°

clockwise.

steps

ratchet).

6-2. Adjustment

needle stop positions

fig.

Clutch

end

cowr

factory

this

pre-adjusted;

however,

necessary,

readjust

the

needle

stop

positions

turning

the

reflection

plates

the

synchronizer

described

below.

NOTE:

While

readjusting

the

positions,

trimmer

and

wiper

solenoids

should

disconnected.

not

touch

the

reflecting

portions

the

reflecting

plates.

(457

machine)

Turn

the

sewing

machine

manually

into

the

"needle

down"

position.

(Make

sure

the

direction

rotation

correct)

Remove

the

cover

from

the

synchronizer.

(Remove

the

screw

Loosen

the

screw B.

(Do

not

remove

the

screw B)

Turn

the

reflection

plate

that

the

adjusting

tab

plate

will

located

uppermost

position.

Turn

the

sewing

machine

the

"needle

up"

position.

Make

the

same

adjustment

the

reflection

plate

for

"needle

up"

position.

Tighten

the

screw

Replace

the

cover

the

synchronizer.

fig.

Adjusting

tab

AdjuSting

tab

make

fine

adjustments

the

preceding

instructions

and

...

Operate

the

sewing

machine

with

the

foot

treadle.

B) Press

the

treadle

forward

and

release.

Make

sure

the

sewing

machine

the

"needle

down"

position.

Correct

for

the

required

needle

position

turning

the

adjusting

tab

Heel

the

treadle.

(Needle

stops

the

position.)

Correct

for

the

required

position

turning

the

adjusting

tab

Finally

tighten

the

screw

Band

install

the

synchronizer

over.

CAUTION:

NOT

TOUCH

THE

SYNCHRONIZER

REFLECTION

PLATES

OTHER

ROTATING

PARTS

WHILE

THE

SEWING

MACHINE

OPERATING.

RE-

MEMBER

THAT

FINE

ADJUSTMENT

CHECKED

WITH

POWER

ON.

From the library of: Superior Sewing Machine & Supply LLC

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