Singer 191D-20, 191D-30, 191D-70 User Manual

Instruction

Manual

and

Parts List

High Speed Straight

Lockstitch Sewing Machine

® Singer

191D

~

is

a registered trademark

SINGER

of

The Si

nger

Company Limited

Copyright

The Si

nger

Company Limited

20!20C 30/30C

70/

70C

"

or

its

aff

iliated companies.

Contents

1 Safety

1.1

Important

1.2 Safe Operation 2 Product Description and Machine Specification

2.1

Product Description

2.2 Machine Specification

2.3

Motor, Setup and

3

3.1

Table Cut-

3.2 Oil Reservoir Installation

3.3 Belt Cover

3.4 Lubrication

3.5 Thread Take-up Lever

3.6 Rotating

3.7 Needle

3.8

Bobbin

3.9 Machine

3.10 Stitch Length

3.11

Thread Tension

3.12 ThreadTake-Up

3.13 Knee Lifter

3.14 Presser Foot Lifter

3.15 Presser Foot Pressure

3.16

FeedTiming

3.17 Feed Dog

3.18 Needle

3.19 Presser Bar

3.20 Thread Take4 Maintenance

4.1

Machine Head Cleaning

4.2 Lubrication Safety Inspection

4.3

5

Troubleshooting

Instructions

Safety

Motor

Adjustment

Out

and

Hook

Attachment

Case

Threading

Height

to

Rotating Hook Relation

Instructions

Pulley

Drawing

Attachment

Adjustment

Height

Adjustment

Height

Up

and

Bobbin

Oil

Supply

Adjustment

Spring

Adjustment

Stroke

V-Belt Specifications

Instructions

Winder

Oil

Supply

Adjustment

Installation

Adjustment

1

2

3

4 4

5

6

7

8 8

9

10

11 11

12 12

13

14 14

15

16 17

18

19 20

21 21 21 21 22

Contents

6 Parts List

6.1 Frame

6.2

Arm

6.3 Needle Bar, Components

6.4 Presser Foot

6.5 Feed Mechanism

6.6

Lubr

6.7 Oil Reservoir

6.8 Belt Cover,

6.9 Machine Accessories

and

Cover

Shaft andThreadTake-

ication

Bobbin

Components

Upright

Components

Winder

Up

Lever

Components

Shaft and Rotating Hook

and

Thread Stand

Driving

Components

Shaft

23

24 26 28

30

32

34 36 38 40

Safety Instructions

1.1

Important Safety

Instructions

Important

When using the

machine, basic safety

procedures

be followed.

with attention all

instructions before

using the machine.

When using

understand that

all basic safety

instructions are

not

limited to the

following items.

Read all instructions,

take care

manual, and use

as

reference when

must

Read

1t,

of

this

necessary.

it

• Before running the machine, make all

sure

tions are adequate tions

your

• The machine

without

•

The

ated

• For

used

• Turn

when the

• Passing dle looper.

•

Replacing foot, sliding

• When the machine is in nance.

• When the ning

•In with

surface

with water. In case medical

relevant safety specifica-

to

and

technical standards

country.

should

its

safety

machine should only by

properly trained personnel.

your

safety,

while

running

off

or

unplug

following

the

thread

or

replacing the

the

throat

the machine.

case

the eyes

a generous

plate,

plate.

operator

of

lubricant

or

with

plenty

of

help

immediately.

not

devices.

goggles

the machine.

the machine

situations arise:

by

needle,

feed

is

oil

skin, washed the

of

amount

ingestion, seek

specifica-

be

run

be

oper-

must

the nee-

bobbin

presser

dog

and

mainte-

not

run-

contact

icy

water

of

cold

in

be

or

• Maintenance equipment

tric made any the machine ately

• Before starting the machine

running, a test to assure tor

• The machine

next sonic equipment.

• The machine

with connectors,

grounding.

• The machine

to its instructions manual,

cations

Singer for thorized changes

by

electric device is damaged,

stopped.

are

able

to a sound

welding

the

sew

of

will

any

damage

and

repair

should

qualified

should

must

that

machine

to

perform

should

source as an ultra-

machine

should

proper

materials as indicated

not

electric cable

and

also the adequate

should

use

should

be held responsible

caused in

the

on only

personnel.

be

immedi-

be

conducted

and

the task.

not

be

and

only

be

and

be followed.

by

product.

elec-

be

If

in

full

opera-

placed

other

be

run

and

used

in

indi-

unau-

• Repair,

should

properly

fitting

only

trained

or

maintenance

be

performed

personnel.

High Speed Straight Lockstitch Sewing Mach ine !

by

Instruct

ion Man ual and Parts List 1

1.2

Safe Operation

.&_

•

To

avoid

the risk

do

not

open

and

do

not

assembled

•

To

avoid machine in

case

removed.

•

To

avoid possible injuries keep fingers, wheel, belt and chine is running. Nothing should be placed near those parts.

•

To

avoid fingers and when

•

To

avoid

ful

when

the machine head.

•

To

avoid den turn remove the

injuries

without

any

head

injuries never

thread

the

machine is running.

possible injuries

putting

accident

start

of

it

off

when

of

electric shock,

the

motor

touch the

inside

other

and

motor

to

take-up

the machine always

belt

components

the

do

the

belt

safety

clothes

when the ma-

the

rotating

down

in

case

laying

cover

and

wiring not

lever

it

wiring

box.

run

cover

device is

far

from

put

hook

cover

be

care-

or

lifting

of

a sud-

down,

the belt.

box

the

or

your

or

•

If

you

machine is a servomotor, noises while being driven. a possible accident caused unexpected start, chine is

•

To run the machine grounding.

.&_

•

To

·

or caused the machine ging

• Clean

turned

avoid

minimize

damage

by

it.

the

it

off.

electrical shock,

the

in

electric

electric discharge

off

machine periodically.

equipped

does

not

be

sure

without

risk

of

accidents

components

before

with

make

To

avoid

by

an

the

ma-

do

not

proper

turn

unplug-

High Speed Straight Lockstitch Sewing

Machine !Instruction

Manual and Parts List 2

Product Description

2.1

Product

Description

and

High Speed Straight Lockstitch Sewing Machine

Machine Specification

c

High Speed Straight

Lockstitch

Sewing

Machine !Instruction

Manual and Parts List 3

Specification

Tab

le 1 -

Mac

hin

Singe

r Application

Model

1910-

20

light

20C

medium

Medium heavy

1910-

1910-30

1910-30C

2.2

Machine

e Specification

Maximum

Speed

to

[spm)

5,000

4,500

Stitch

Length

[mm)

5.0

Height Presser Foot by

of

hand

/

knee[mm)

by

5.5/13.0 30.7

5.5/13.0 35.0

Needle Hook Hook Needle Cat. Lubrication

Bar

Stroke

[mm]

Type

Regul

ar

Origin

Standard

Koban/

Hirose

Standard

Koban/

Hirose

1955-01

#14

#18

Fully

Automatic

Lubrication

Oil

ucw

Singer

type

oil

1910-70

Heavy 3,000

1910-70C

2.3

Motor,

Pulley

and

Specifications

Motor

V-Belt

7.0

•

V2

HP (400W)

• M

type

Table 2 - Machine Speed vs.

19

1C-20

5,000 4,500 4,500

5.5/13.0 35.0 Large

2-po

v-belt

Machine

/20C

Speed [

191C-30

4,000 3,500

/30C

le

Motor

(high

spm)

speed) clutch

Pulley Diameter

191C-70 / 70C

3,000

2,500

Standard

Koban/

Hirose

1955-01

motor

Motor

50Hz

125 115 100

90 75 65

#21

Pulley Diameter

[mm]

60Hz

105

95 85 75 65 55

High

Speed

Straight Lockstitch Sewing Machine ! Instruction Manual

and

Parts List 4

Setup

and

Adjustment Instructions

3.1

Table Cut-Out

Drawing

,---------------------------------~

+ 1

181

- 0

115

-

130

---

0 0

N

~o

+ '

0

~

----

0 0

N

----

.....

ai

""

00

N

""

c...

LU LU

Cl

~

c...

LU LU

Cl

N

f-

"'

,J

I--"'

00

N

95

'---------------------------~------'

~

I

535

LO

"'

:---

Figure 1

High Speed Straight Lockstitch Sewing

Machine !Instruction

Manual and Parts List 5

3.2

Oil

Reservoir

Installation

The

oil

reservoir

four

corners

groove.

Two

rubber seats

the head portion on the operator

~~

side

are fixed

should

of

the machine table

'1'

Figure 2 Figure 3

rest on the

for

supporting

on

the extended

of

portion

and the on the hinge side nail

placed (Figures 2

the table

other

two

too. Then, the

- ® ®-

by

using

nail

rubber cushion

'8'

are attached

oil

reservoir

and

3).

'4'

'2',

'3'

by

is

Two hinges machine bed, fitted the table hinge's before the machine head is placed

'1'

fit

into the

and

the machine head

Figure 4

hole

in the

rubber

'2',

to the cushions

of

ners

the table (Figures 4

Figure 5

'3'

on

the

four

and

cor-

5).

High Speed Straight Lockstitch Sewing Machine ! Instruction Manual and Parts List 6

3.3

Belt Cover Bobbin Winder

Installation

For safety, the

belt cover should

be installed.

right parts

bobbin winder

should be parallel

belt

machine table.

and

Caution

The

left and

of

the

to the plate

slot

on the

Drill

four

holes J1', '8',

in

the

machine

(Figure Insert

hole Install the

get

the Install the back

holes 'C Fix the

support

6).

support

in the housing.

front

the

hand

wheel in the

cover

hole.

',

'D'.

front

belt

with

'C'

and

'D:

table

'1' in the threaded

belt

screws '4

cover

belt

cover

for

screws

'3'

middle

cover

'3' on the

',

'5'

'2'

and

of

at

and

washers '6'. The

for

the

and

for

kgfxcm Move

ward,

front

belt

0.5-1.0

and

washers.

Fix

bobbin

with

screws

screw

the back until

the

.

cover

mm

'4' is

screw

its

and

winder

and

~

tightening

about

'5' is

belt

cover

rubber

'3',

move

fix

it

'7

'

at

washers.

47

~

torque

30

kgfxcm,

about

touches the

it

again

with

hole A',

'2'

back-

screws

25

for

'8'

Fi

gure

N

CD

1 • 63.5 .1

75

.5

6

High Speed Straight Lockstitch Sewing

Machine !Instruct

ion Manual and Parts List 7

3.4

Lubrication

Before fill

oil

reservoir machine (Figure

turning

oil

up

7).

the

machine

'1'

to 'MA

with

X'

on,

sewing

mark

~~

When ter ing if

you

lubrication,

oil

the

lubrication

operate the

through

machine

you

will

see splash-

oil

sight

window

is adequate.

af-

'2'

Precaution

When you first operate

your machine after

up

or

after

an

period

your machine

to

2,

of

disuse,

500 spm for about

10

minutes for the

purpose

of

set

extended

run

at

2,

000

bread-in.

3.5

Thread Take-up

Oil

Lever

Supply

Adjustment

When the

'

MIN' mark '8',

voir

with

Adjust to

the

bar

crank

'1' (Figure

The reached brought '2'

by

in

direction

oil

the specified oil.

the

amount

thread

'2'

minimum

when

close to needle

turning

'8:

level

refill

take-up

by

turning

B).

amount

marker

the

adjusting

lowers

the

of

oil

and

dot

below

oil

reser-

supplied

needle

adjusting

of

oil

is

~'

is

bar

crank

'1'

Figure 7

Note

that

ing

oil

is

of

the

lubricating

The

maximum reached brought site

from turning rection 'C

the

amount

unrelated

when

to

the

position

the needle

the

adjusting

'.

of

to

oil.

amount

marker

bar

the splash-

the

amount

of

oil

dot

~~

just

oppo-

crank

'1'

in

is is

by di-

Figure 8

High Speed Straight Lock

stitch

Sewing Mach ine !

Instruct

ion Manual and Part

s List 8

3.6

Rotating Hook

Oil

Supply

Adjustment

Unused machine 3

minutes

operation).

The

amount

must

be inserted in the state when

the machine is running (Figure

G)

The am

ount

~~

!-----_

1 , 70mm , 1

should

(Moderate

of

oil

confirmation paper

of

oil confirmation

intermittent

run idle

paper

for

9).

Make sure the

within

is

The amount riod

0 Place

I

amou

nt

The

Fi

gur

of oil confir

e 9

oil

in

the

oil

'MAX'

confirming

is 5 seconds (check the pe-

of

time

of

mat

with

oil

amount

i01

and

'MIN:

time

a watch).

confirm

Oil reser

of

voir

reservoir

the

oil

ing

Machine bed

Sample showing the appropriate amount

The according to the process amount. Otherwise

Adjusting the plied to the hook (Figure

Turning the hook

'+' in direction

will direction decreased.

After be idling confirmed

of

oil (Figure

amount

shaft bushing on bed

be increased,

adjustment

of

but

it

I

Minimum

oil

adjusting

'8

', the

for

thirty

the state

must

Splashi

//

amount

10)

oil

can be

different

be a suitable

the

ng

oil from

/

1mn

screw

~

:

the

oil

and

toward

oil

amount

the machine

seconds.

of

oil

adjusted

sewing

hook

the

Fi

of

oil sup-

11)

of

toward

amount

'-'

will

must

It

can be

supplied.

will

hook

gure

the

in

be

generate heat rial

will

Use the paper amount the

mark

Maxim

10

or

the

be contaminated.

amount

for

three

of

on the

um

of

oil

times

oil. Adjust

paper

Fi

gure

11

to observe the

the

sewing

confirmation

unchanged.

mate

screw

until

-

High

Speed

Straight Lockstitch Sewing Machine ! Instruction Manual

and

Parts List 9

3.7

Needle

Attachment

Caution

Choose a proper

needle size

according to the

count

of

thread and

the type

The

should be

of

sewing

material used.

power

before attaching

the needle.

supply cut

off

the

Turn

dle

bar

of

its

stroke

L

oosen

'1'

with

exactly Insert

hand

reaches

screw

its

indented

to

the

needle

wheel

the

(Figure

'2'

and

right

until

the

highest

12). hold

part

'A'

in

direction '8'.

in

the

direction

nee-

point

needle

facing

of

the

ther

.

Tighten

Make the left

sure needle in

arrow

direction 'D'.

until

the

screw '2'.

the

is

long

facing

t

it

will

groove

exactly

go

no

'C'

to

fur-

of

the

Fi

gure

12

High Speed

Straight Lock

sti

tch Sewing Machine !

Instruct

ion Manual and Part

s List

10

3.8

Bobbin Case

Attachment

Fix the that to the left as observed

Pass the J4', doing

bobbin

the thread open

and

pulls

so, the thread

into

thread

it

through

in

bobbin

end

direction 'C'.

case

is directed

from

you.

thread

will

pass un-

with

slit

By

Figure

der

the tension

out

from

When bobbin tion

of

13

spring

notch '8 ' (Figure

pulling

should

the

the thread 'C', the

rotate in the direc-

arrow

.

and

13).

come

3.9

Machine

Threading

When threading the machine head,

bar

the needle highest

point

should

of

its stroke.

be

at

the

Figure

Thread shown proximately (Figure

14

the below

14).

machine

. Leave

4 em

long

in

the

order

thread ap-

in

the needle

High Speed Straight Lockstitch Sewing Machine ! Instruction Manual and Parts List 11