Singer 211G146, 211G151, 211G157, 211G158, 211G351 Service Manual

Form

30-289

G/1073-894

SINGER

158,

Service

MACHINES

211G146,

351,

357,

211G151 AND 211G157,

358,

Manual

451,

457,

651,

657,

658

*A

TrademarkofTHE

SINGER

COMPANY

All

THE

Rights

Copyright

Reserved

SINGER

under

International

under

COMPANY

The

Singer

Inter-American

Copyright

Company

Union

Copyright

Union

PrintedinWest

Germany

CONTENTS

DESCRIPTION

INSTALLATION LUBRICATION

OPERATOR ADJUSTMENTS .9-16

Arm

Shaft Connection Belt Replacement

INFORMATION

.16

Bobbin Case Opener, Adjusting 14 Bobbin Case Opener, Timing 14 Bobb

in Case.

Bobbin

Removal

From Sewing

Hook

13

Bobbin Replacement 7

Bobbin

Description of Machines 3

Thread

Winding

Tension

Feed Dog Adjustment 15 Feed Eccentric Adjustment 15 Feed Reversing Mechanism (211G157) 11

Feed Reversing Mechanism

Adjustment (211G157/158)

Hook

Height 12

Hook

Lubrication

Hook

Position

Hook Removal 13, 14

HookTiming

RelativetoNeedle

12

13

3

4

4-5

5-9

INDEX

Installation

Lubrication

Needles 5

Needle Bar Bushing (211G146) 10

7

8

7

Nedle Bar Height (211G146) 10

Needle Bar Height

Needle

Bar

Position

Rock

(211G151

RelativetoPresser

Frame

& 211G157) 10

Removal

Needle Setting 6

Needle Pressure

Speed 5

Thread

on

Tension

Material

Stitch Length Regulation 9

Take-up Lever Removal 16

Thread

5

Threading Bobbin

Controller

Tensions

Cose

Threading (Lower) 7

Threading (Upper) 6

Bar

4

10

16

8 9

A, 9

8

DESCRIPTION

The

long

Singer

arm,

211G146,

211G151

precision lockstitch

machines,

of medium to heavy weight fabrics.

GENERAL

Vertical

FEATURES

axis

hook

with

metered

lubrication.

Hook

can be removed without disturbing hook shaft.

Safety clutch, adjustable to sewing conditions, to

prevent hook damage during occasional strain.

Fully automatic lubrication to all moving ports

from two

reservoirs

enclosedinthe

machine.

Thread lubricator reservoir, inside face plate,

filled through oil hole without disturbing face plate.

Adjustable feed driving eccentric located on hook

driving

all

shaft, produces a

speeds.

uniform

stitch

length

OF

MACHINES

and

211G157

designed

are

for

high

speed, single needle,

top

performance

on a

variety

Oil reservoir in hook saddle permits controlled

lubrication to bobbin

anism

and

hook.

Arm

shaft,

are mounted in boll

hook

case,

shaft, bearings

bobbin

and

case

belt

opener mech

driven bed

at rear and in automat

shaft

ically lubricated plain bearings in front.

Plunger

surfaceofbed.

for

changing

length

of stitch is on top

Needle bar and needle bar driving mechanism are

at

lubricated automatically

arm.

from

oil reservoir in machine

Sleeve type take-up.

Thread take-up guard.

Belt

drive.

Knee

lifter.

Combination of needle feed and drop feed prevents

slipping of upper and lower plies of material during

sewing, insuring uniform

Clearance under presser foot:

clearance

available

on order).

stitching

1/4

and even

plies.

inch. (3/8 inch

Needle

bar

stroke:

1-5/16

inches.

Bed: 18-3/4 inches long, 7 inches wide.

Space at right of needle:

10-1/2

inches.

Federal Stitch Type 301.

SPECIAL

211G146

FEATURES

DROP

FEED

Primarily for shoes and a variety of leather products.

Boll bearing roller presser.

Clearance under roller presser:

Maximum

211G151

stitch length: 6 per inch.

COMPOUND

FEED

1/4

inch.

Ideal for stitching coots, overalls, rainwear, work-

clothes,

sports

outerwear and similar

items.

Maximum

211G157 COMPOUND

Similartomachine

stitch

length: 5 per inch.

FEED/REVERSE

211G151

with

addition

FEED

of

feed

re

versing mechanism controlled by hand or foot. Direc tion of feed can be reversed at any time, and at any

speed.

Spring

biased

reverse

lever

resumes

forward

stitching position immediately, when hand or foot

pressureisreleased.

Clearance under clearance

Maximum

The

machine, approx. 10 mm

ding on

The

(211

available

stitch length: 6 per inch.

211G158

the

material

maximum

G 158) is

presser

on order).

machineisthe

only variation is

canbeobtained

sewn.

speed

recommended

1800

rpm.

foot:

same

the

fact

with this

1/4

inch.

as

the

that

a stitch length of

machine,

for this

(3/8

211G157

depen

machine

inch

The

211 G 351: 211 G

are

compound

Machine

211G351

211 G

357

211G358

211G451

211G457

211G651

211G657

211G658

357;

211 G

358;

211 G

451;

feed

varieties within

Features

the

machine

Large Vertical Axis Hook. All other features comply

with

211 G 151

machine.

Large Vertical Axis Hook. All other features comply

with

211G157

machine.

Large Vertical Axis Hook. All other features comply

with

211G158

Underbed All

other

Underbed

All

other

features

Thread

machine.

Trimmer

comply

Trimmer

comply with

with

Large Vertical Axis Hook; Underbed Thread Trimmer with Wiper.

All

other

features

Large Vertical Axis Hook;

All

other

features

comply

with

Underbed

with

Large Vertical Axis Hook; Underbed Thread Trimmer with Wiper.

All

other

features

comply with

For machines with UTT, Service Manual Form No.

*

these

machinesare

The lubricating

pad

not

has

equipped

to be

soaked

with

the

automatic

manually if needle thread is to be lubricated.

211 G

457;

class

211

Thread

211G151

Thread

211G157

211G151

Thread

211G157

211G158

30-349G

needle

211 G 651; 211 G

G.

Wiper.

machine.*

Wiper.

machine.*

Trimmer with Wiper.

machine.*

should be

thread

used

lubrication.

657

and

211 G

658

machines

Max. St.

5

6

2/2

5

6

5

6

2/2

Length

SPI

= 5

SPI=4.2

SPI=10

SPI

= 5

SPI=4.2

SPI

= 5

SPI=4.2

SPI=10

mm

as supplementary literature.

mm

Max.

2,700

1,800

4,000

2,700

1,800

Speed

RPM

DRAIN

PIPE

STOP

STUD«

'

JDI

€'

I I

Fig.

2. Installotion View

lifter

ROD

LUBRICATION

INSTALLATION

Fasten drip pan to table with its left end even

with

left

end

of

in location

shown

cut-out.

in Fig. 2 Assemble it so that lifter

Fasten

knee

lifter

bracket

rod does not strike drip pan. Screw slots in bracket

provide

the action of knee lifter

necessary adjustment. Set stop-stud to stop

as

soon

as

presser

foot is

raised enough to trip hand lever. Screw drain pipe

into drain hole in drippan and attach oil jar as shown.

•BEFORE

FILL

HIGH

MARK

Fig.3.Arm

All moving parts are lubricated from two

enclosedinthe

machine.

STARTING

TO

HIGH

Reservoir

MARK

reservoirs

Before storting the machine, oil reservoirs should

be

filled

and

FILL

THREAD

RESERVOIR

SINGER*

THREAD

"TYPE

LUBRICANT

E" I

criticol

WITH

oreos

LUBRICATOR

lubricated.

//)

Vii)

WHEN

MACHINE

IS

RUNNING

OFF-^"""^'^

WHEN

MACHINE

IS

IDLE

FOR

MORE

THREAD

LUBRICANT

Fig.5.Thread

Lubrication

LUBRICATING

PAD

MACHINE

'CHECK

TWICE DAILY

OIL

GUAGE-

HIGH

SATURATE

WICK

FILL

TO

HIGH

Use Singer Oil

reservoir

Fill

RESERVOIR'

MARK

Fig.4.Bed

and

hook

saddle

machine arm

"Type

reservoir

Reservoir

A" or

reservoir.

MARK H

"Type

to high mark on oil

C"

CHECK

TWICE

DAILY

OIL

TWICE

DAILY

for arm

sightOSindicated in Fig. 3.

The

ting

is

operating.

machine

pump

which

arm

reservoir

releases

contains

on

oil

vibra

oil only when the machine

Remove oil gaugeasshown in Fig. 4 and fill hook

saddle

reservoir to full mark on gouge. Lubricate hook

gears and opener gears by applying a generous supply

of

oiltooil

Use Singer Oil reservoir. hole in face plate

BRICATOR

MACHINEISOPERATING

IS

IDLE. troller

Fig.

5.

holes

indicated

Fill

thread lubricator reservoir through oil

CONTROLLER

To

increase

in

counterclockwise

in

Fig.

4.

"Type

as

E"

for thread lubricator

shown in Fig. 5. THREAD LU

MUST

AND

thread

direction

BE

OFF

WHEN

lubrication,

ON WHEN

MACHINE

as

turn shown

.• E

con

i?

in

CONTROL

VALVE SCREW

CONTROL

VALVE

SET

SCREW

•..|a

Fig.

HOOK

The bobbin

pumped

6« Hook

LUBRICATION

from

the hook saddle reservoir while the

Lubrication

case

raceway is lubricated by oil

chine is operating. The amount of oil received by hook raceway is very important. To check this, first

remove

hold a small

bobbin

case.

Then

with

piece

of white paper near the hook for

about 10 seconds. A distinct spray of oil should be

visibleonthe

If

there

is

paper.

no

trace

of

oil

the paper, proceed with the following

1. Tip machine and loosen control valve

shown in Fig. 6 and return machine to upright

position.

(Step One)

the

or on

ep One)

machine

excess

steps:

running,

of

oil

set

screw

ma

on

PI

.j

Fig.

7* Hook Lubrication (Step Two)

SPEED

Maximum

is 4000

Maximum

speed for mochines

stitches

per minute.

efficient

211G151

and

211G157

speed is dependent upon the

nature of the operation, the ability of the operator

and the

mediately

500

mended for

NEEDLES

1740.

type

of materiel being sewn.

Never run a new machine at maximum

followinganew

stitches

For machine 211G146,

per minute

the

first

100

installation. A speed of

less

than maximum is recom

hoursofoperation.

use

Singer

Needles,

speed

Catalog

im

2. Turn control wise oil.

Re-tighten

A

short

mode between

valve

for more oil;

control

test

run

of

adjustments

screw

shown in

counterclockwise

valve

at

least

a

set

minute

Fig.7clock

for

screw.

should

to insure uniform oil flow.

less

be

Machines

Needles, Catalog

presser foot and Catalog 3355 for

Size of needle for a particular operation is

mined

by

size of thread and type of material to be

211G151

1901

For

After each adjustment of oil control valve screw, oil

set

control valve

screw should be securely tightened.

Orders for needles should state quantity required,

size

SPEED

Maximum

stitches

speed for machine 211G146 is 3500

per minute.

number and catalog number.

For example;

100 Needles, Size 14, Catalog 1740

for

and

211G157,

1/4

inch clearance under

3/8

inch clearance.

use

Singer

deter

MOVE

HIGHEST

TO^

POINT

LOOSEN

CLAMPING

NEEDLE

SCREW

SETTING

THE

NEEDLE

1. Turn machine pulley over toward you until

2.

needle

Fig.

Loosen

bar isathighest

8.

needle

clamping

position

screw

as

shown in

LONG-^

GROOVE

TO

LEFT

INSERT

FAR

TIGHTEN

Fig. 8* Needle Setting

HOLD

THIS

END

TWIRL

Fig.9.Thread

OVER

TOWARD

Twist

YOU

Determination

Turn machine pulley over toward you until

bar is ot

highest

Pass

thread through threfading points as indicated

position.

NEEDLES

POSSIBLE

SCREW

AS

AND

UPPER

needle

3. Insert tion, with long groove of

needle

into

needle

needletoleft

bar to

highest

tor and eye of needle parallel to machine arm.

4. Tighten clamping screw.

THREAD

Left

twist

thread

Either

bobbin.

left

To determine thread

in Fig. 9.

With

should

or right

be

twist

twist,

usedinneedle.

thread

can be used in

hold thread

left hand holding one end of thread,

twirl other end with thumb and forefinger of right

twist

hand over toward you. If left

thread,

will wind tighter. If right twist thread, strands will

unwind or

THREADING

in

Fig.

to

start

separate.

10.

Draw

about 2 inches of thread through needle eye

sewing.

of opera

as

shown

strands

posi

Threading

MOVE

TO

HIGHEST

POINT

Threading

Needle

Fig. 10. Upper

'BEHIND

Threading

OIL

PAD

Tension

Assembly

LOWER

THREADING

LIFT

LATCH

BOBBIN

REMOVAL

1. Open slide plate in bed of machine

2. Turn machine pulleyover toward you until needle

bar

reaches

3.

Raise

dicatedinFig.

BOBBIN

WINDING

Attach bobbin winder to

in front of

beltasshowninFig.

bobbin

highest

latch

11.

position.

and

lift

table

out

bobbin

with driving pulley

12.

Securely place bobbin on bobbin winder spindle.

Pass

thread through thread guide, then around and

between

wise

12.

tension

around

discs

as

bobbin a few

shown.

times

Wind

as

thread

indicated

as

clock

in

Fig.

Bpf''

LIFT

Fig. 11. Bobbin Removal

OUT

BOBBIN

Move

bobbin winder pulley over against machine

belt

and

start

machine.

The

amount

regulatedbyscrew B, Fig.

on bobbin, turn screw B inward. For

of

thread

to

be

12.

wound

To

wind

less

on

bobbin

more

thread on

thread

bobbin, turn screw B outward. This screw should be regulated to stop bobbin winder spindle when thread

on

bobbinis1/16

inch

shortofbobbin

rim.

If thread winds unevenly on bobbin, loosen tension

bracket screw A, Fig. 12, and

or

lefttoobtain

even

winding.

Adjusting knurled nut C, Fig.

of thread being

use

light

tension.

Bobbins

wound

maybewound

on

move

bracket to right

12,

regulates tension

bobbin.

For fine thread,

while machine is stitching.

is

Fig.

12. Bobbin Winding

PLACE

ON

BOBBIN

CENTER

STUD

CLOSE

LATCH

BOBBIN

counterclockwise

about

REPLACEMENT

Place

bobbinoncenter

2 or 3

direction

inchesofthread

stud

with

as shown in

from

bobbin.

thread

Fig.

wound in

13. Draw

•

DIRECTION

THREAD

OF

AROUND

Fig.

BOBBIN

13. Bobbin Replacement