Singer 457U135 Manual

Operator's

Guide

SINGER*

457U105,457U125,457U135,457U140

Machines

LUBRICATION

FOR

THE

AUTOMATIC

LUBRICATION

USE

SINGER

"TYPE

OIL

ONLY

Check

oil

flow

window

when

machine

running.

Check

oil

flow

hook

holding

asmall

piece

paper

under

the

hook

while

machine

running.

After

seconds,

the

paper

should

show

oil

pattern

approx

1/32

inch

(0.8mm).

Less

oil

Fill

oil

reservoir

high

mark.

Check

daily.

Regulating

screw

for

hook

lubrication

SPEED

The

maximum

speeds

recommended

for

Machines

Class

457U

are

5000

RPM

(4500

RPM

for

457U140),

however,

for

the

first

150

hours

machines

should

run

least

500

RPM

below

maximum

recommended

speeds.

From the library of: Superior Sewing Machine & Supply LLC

NEEDLES

Use

Singer

needles

Catalog

1906

{chromium

finished)

Machine

457U140

only

Catalog

8752

(chromium

finished)

—In

sizes

determined

size

thread

and

type

material

being

sewn.

UPPER

THREAD

Before

threading,

any

remains

thread

must

removed

from

the

rotary

take-up.

CAUTION:

careful

avoid

injury

from

thread

cutter

O •

Thread

only

with

the

needle

bar

highest

position.

Move

needle

bar

highest

point

Move

needle

bar

highest

point

Loosen

screw

Insert

needle

far

possible

and

tighten

screw

Long

groove

SETTING

THE

NEEDLE

From the library of: Superior Sewing Machine & Supply LLC

BOBBIN

REMOVAL

AND

REPLACEMENT

BOBBIN

WINDER

Wind

thread

around

bobbin

REMOVAL

Open

latch

Hold

latch

and

pull

bobbin

case

from

hook

Release

latch

Bobbin

drops

out

REPLACEMENT

5. Holding latch, replace

bobbin

case

stud

Release

latch

Press

back

until

latch

catches

groove

stud

Place

bobbinon spindleas

far as it will go

Press

lever

against

bobbin

From the library of: Superior Sewing Machine & Supply LLC

THREADING

BOBBIN

CASE

Draw

thread

down

and

under

spring

0 Pull thread

into

slot

o Drawthread up

Into

delivery

eye

Lead

thread

into

slot

bobbin

case

Use

slotO

when

sewing Light-weight material.

Use

slot

©when

sewing

medium-weight

material.

THREAD

TENSIONS

BOBBIN

THREAD

NEEDLE

THREAD

Tension

Less

Tension

threads

should

be as light as possible,

while

still

sufficient

set

stitch

correctly

material.

tension

Less

tension

Regulate needle

thread

tension

only

when

presser

foot

down.

From the library of: Superior Sewing Machine & Supply LLC

STITCH

LENGTH

REGULATION

457U105,457U125,457U135

MACHINES

STITCH

LENGTH

REGULATION

457U140

MACHINE

TILT

MACHINE

REAR

Loosen

lock

nut

Shift

connecting

rod:

left—longer

right—shorter

Tighten

lock

nut

RETURN

MACHINE

SEWING

POSITION

REVERSE

FEEDING

Turn

regulating

screw

desired

stitch

length

FORWARD

FEEDING

Turn

regulating

screw

desired

stitch

length

CHANGING

REVERSE

FEED

Push

lever

down

for

reverse

feeding

and

release

for

forward

feeding.

From the library of: Superior Sewing Machine & Supply LLC

ZIG-ZAG

STITCH

SETTING

457U105

MACHINE

Set

hand

lever

desired

zig-zag

stitch

within

0-8

bight

range

NEEDLE

POSITIONING:

Set

hand

lever

desired

needle

positions

Left:

Center:

Right:

ZIG-ZAG

STITCH

SETTING

457U125,457U135,457U140

MACHINES

Locking

screw

for

bight

control

lever

457U125

MACHINE

Set

hand

lever

desired

zig-zag

stitch

within

0-5

bight

range

457U135,457U140

MACHINES

Set

hand

lever

desired

zig-zag

stitch

within

0-8

bight

range

From the library of: Superior Sewing Machine & Supply LLC

PRESSER

FOOT

PRESSURE

The

pressure

the

material

should

be as

light

possible,

while

still

sufficient

ensure

correct

feeding.

CLEANING

Clean

out

any

lint

other

waste

around

the

hook,

between

the

feed

rows

the

underside

the

throat

plate

and

the

hook

area

the

oil

pan.

pressure

* A

Trademark

THE

SINGER

COMPANY

SINGER SEWING MACHINE COMPANY

All

Rights

Reserved

Throughout

The

World

From the library of: Superior Sewing Machine & Supply LLC

Form

U3150

(Rev.

990)

Part

No.

543182-002

(Rev.

Printed

Japan

From the library of: Superior Sewing Machine & Supply LLC

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