Pfaff 141 User manual

6499

(PMff f

141;

143|

145;

151;

153

541; 543;

543-712;

545;

555

Single-needle

flatbed

sewing

machines

142;

144;

146

542;

542-748/01;

544; 546;

546-748/01

Two-needle

flatbed

sewing

machines

Instruction

Book

From the library of: Superior Sewing Machine & Supply LLC

' •

Contents

, ^

Page

General

Fundamentals

machine

operation

Cleaning

and

oiling

Winding

the

bobbin

Changing

the

bobbin

and

threading

the

bobbin

case 7

Selecting

the

correct

needle

Needle

systems

Needle

point

styles

Needle

and thread sizes 8

7. Changing

the

needle

Threading

the

needle

9. Drawing up the bobbin thread

10. Regulating the thread tensions

Adjusting the upper tension

Adjusting the lower tension

11. Regulating the stitch length

12.

Regulating

the

pressure

the

material

''S

13. Cleaning

the

sewing hook

14.

The

safety

clutch

Additional

instructions

for

Pfaff

machines'141-705/03

and

141-705/03-725/01

. 16-18

15. Regulating the stitch length

16.

Changing

the

feed

gears

'•8

17. Adjusting

the

trimmer * *

^18.

Operating

the

trimmer

Additional

Instructions

for

Pfaff

machines

143-705/03

19.

Regulating

the

stitch

length

Additional

Instructions

for

Pfaff

machines

145

22-24

20.

Exchanging

the

alternating

pressers

21.

Lubricating

the

machine

0-22. Setting

the

foot lift

Additional

Instructions

for

Pfaff

machines

151

and

153

(

Additional

Instructions

for

Pfaff

machines

142,

542-748/01,

144

and

146

25-^

r23.

Threading

the

needles

24.

Adjusting

the

puller

feed

the

Pfaff

542-748/01

Additional

Instructions

for

Pfaff

machines

543-712/01

and

543-712/02

...

"25. Threading the needle of the Pfaff

543-712

-.-Additional

Instructions

for

Pfaff

machines

546-748/01

28—29

^26.

Setting

the

foot

lift

. . . ; ^

't27.

Adjusting

the

puller

feed

^Additional

instructions

for

Pfaff

machines

4141

and

4145

. -

^^^28.

Threading

the

Pfaff

4141

and

4145

8®

Additional

Instructions

for

Pfaff

machines

fitted

with

thread

puller/trimmer

900/»

'!'29.

Pedal

operation

Guards

Trouble

shooting

^i2

From the library of: Superior Sewing Machine & Supply LLC

General

•

Since

the

operation

the

machines

listed

the

title

page

less

the

same

the

general

instructions

compiled

this

book

apply

all

them.

Additional

instructions

for

the

Pfaff

141-705/03;

141-705/03-725/01;

142;

143-705

03-

144;

145;

146; 151;

153;

552-748/01;

543-712/..;

546-748/01;

4141;

4145

and

-900'..

appear

the

back

this

booklet.

reserve

the

right

make

alterations

serving

progress.

The

illustrations

this

book

are also subject to change.

recommended

run

these

machines

the

following

top

speeds:

000

s.p.m.

Pfaff

4141

200

s.p.m.

Pfaff

141

and

144

900

s.p.m.

Pfaff

545

2100

s.p.m.

800

s.p.m.

Pfaff

546

300

s.p.m.

Pfaff

151

and

544

700

s.p.m.

Pfaff

546

800

s.p.m.

Pfaff

153

and

542

600

s.p.m.

Pfaff

545

700

s.p.m.

^ 2

500

s.p.m.

Pfaff

4145

600

s.p.m.

Pfaff

145

and

541

400

s.p.m.

Pfaff

546

300

s.p.m.

and

543-712/..

1400

s.p.m.

When

sewing

tightly

woven

and

heavily

dressed

materials,

the

sewing

speed

should

reduced

orderto

prevent

overheating

of the

needle.

The

maximum

speed

two-needle

machines

decreases

the

needle

gauge

increases.

The

maximum

speeds

which

can

attained

with

machines

fitted

with

special

attach

ments

trimming

mechanisms

are

often

far

below

the

recommended

top

speeds

cause

the

nature

the

work

and

the

thickness

the

material

tend

limit

the

chine

capacity.

the

maximum

speed

exceeded,

trouble

may

develop

chiefly

the

trimming mechanism.

avoid

trouble

the

mechanism,

run

the

machine

about

per

cent

its

top

speed

until

the

parts

which

are

movable

contact

have

become

thoroughly

glazed

their

action

upon

each

other.

This

should

normally

the

case

after

about

two

weeks'

constant

use.

All

machines

are

regularly

equipped

with

fixed

pulley

which

cast

one

with

the

ance

wheel.

desired,

however,

these

machines

can

supplied

with

disengage-

ible pulley.

fitted

with

the

latter

type

pulley,

the

machine

dispatched

with

the

sewing

mecha

nism

disengaged.

engage

this

mechanism

for

sewing,

hold

the

balance

wheel

steady

with

your left hand and turn the large

lock

nut

clockwise.

2. Fundamentals of machine operation

Before

you

put

the

machine

operation

for

the

first

time,

carefully

remove

all

dust

which

has

accumulated

transit

and

oil

the

machine

thoroughly

(see

Chapter

3).

the

machine

only

with

Pfaff

sewing

machine

oil

which

non-resinous

and

acid-free.

Check

make

sure

the

finger,

take-up

lever

and

belt

guards

are

properly

fitted.

Never

run

threaded

machine

unless

you

have

fabric

under

the

presser

foot

the

vibrating

presser.

Before

you

start

sewing,

lay

both

threads

back

under

the

presser

foot

From the library of: Superior Sewing Machine & Supply LLC

prevent

thread

jamming,

hold

both

thread

ends

until

the

machine

has

made

few

stitches. . „

not

pull

the

material

during

sewing:

the

machine

wiil

feed

the

fabric

automatically.

Use needles

the correct

system

only

(see Chapter

6).

Never

use

rusty

needles.

Use high-quality threads

only.

Always

bring

the

take-up

lever

its

highest

point

before

you

remove

the

material.

3. Cleaning

and

oiling

Careful

cleaning

and

regular

oiling

will

Increase

the

service

life

your

machine.

After

you

have

removed

the

dust

which

has

accumulated

the

machine

transit,

take

clean

rag

and

remove

the

grease

from

all

nickel-plated

and

polished

Parts.

Apply

few

drops

kerosene

all

oiling

points

marked

with

dash

lines

Figs.

and

raise

the

presser

foot,

unthread

the

needle,

remove

the

bobbin

case

and

let

the

J^achine

run

briefly.

Apply

few

drops

Pfaff

sewing

machine

oil

No.

280-1-120122

all

points

friction.

While

these

points

friction

should

oiled

twice

week,

the

sewing

hook

"lUSt

oiled

each

day

the

machine

operation.

Make

particularly

sure

that

oil

applied

oilhoie R (Fig. 4).

Althougti

the

bevel

geers

ere

enclosed

ceses

and

require

speclel

mamtenence.

recommended

replace

the

old

grease

Pfaff

grease

once

year.

Owing

the

special

lubricating

properties

this

grease,

the

flanks

the

beve

gear teeth

should

greased

only

lightly.

From the library of: Superior Sewing Machine & Supply LLC

^rom

time

remove

the

needle

plate

alter

taking

out

set

sorevvs

and

rpi.

repT

^-Tng'tortnd

dearnhTrougWy

(sarcTaTte?

13')

jse::Lrs,rrhi\rr3ror.t~

^ -

From the library of: Superior Sewing Machine & Supply LLC

4. Winding

the

bobbin

Place

spool

ttfread

(Fig.

and

pass

the

thread

from

left

right

through

eyelet

clockwise

around

and

between

tension

discs

and

from

the

inside

through

the

slot

the

bobbin.

Wind

few

turns

thread

the

bobbin

and

place

the

latter

spindle

Start

the

bobbin

winder

pressing

down

lever

The

bobom

wound

automatically

while

the

machine

sewing.

When

sufficient

amount

thread

has

been

wound

on the

bobbin,

latch

stops the

bobbin

winder.

The

amount

thread

wound

the

bobbin

regulated

screw

Turn

this

screw

clockwise

for

thread,

counter-clockwise

lor

less

thread.

the

thread

should

pile

one

end

the

bobbin,

adjust

the

position

the

bobbin

winder

tension

sideways,

may

required.

this,

loosen

screw

adjust

th.

tension and tighten the set screw again.

The tension on the thread is

regulated

turning

nut 8.

Maks

sure

the

bobbin

winder

pulley

rotates

the

direction

Indicated

arrow

Fig.

9929

From the library of: Superior Sewing Machine & Supply LLC

5. Changing the bobbin and threading the bobbin case

Raise

the

needle

its

highest

position

and

open

the

bed

slide.

With

the

thumb

you:

right

hand

open

latch

(Fig.

6),

then

push

the

thumb

nail

under

the

projecting

flange

the

bobbin

case

cap

and

lift

the

latter

out

the

machine

with

thumb

and

fore

finger.

The

bobbin

now

exposed

the

bobbin

case

base

and

can

taken

out

easily.

Place

full

bobbin

the

bobbin

case

cap

that

the

thread

draws

top

from

left

toward the right, as shown in

Fig.

Hold

the

bobbin

steady

the

bobbin

case,

pull

the

thread

into

slot

and

draw

under

tension

spring

Leave

loose

end

thread

about

long

outside

the

bobbin

case.

Place

the

bobbin

case

with

the

bobbin

the

center

stud

the

bobbin

case

base

and

latch B (Fig. 6) as well as the bed slide.

Note

that

the

rotary

hook

Pfaff

machines

151

and

153

located

the

left

the

needle

plate.

9931

From the library of: Superior Sewing Machine & Supply LLC

Selecting

the

correct

needle

ensure

reliable

stitch

formation,

check

see

that

the

correct

needle

inserted

the

machine.

Needle

systems

The

following

needie

systems

are

used

for

the

individual

machine

classes:

134

for

Pfaff

machines

141, 142,

143,

144. 151. 541,

542,

543

and

544.

for

Pfaff

machines

142; 144;

542

and

544,

when

these

machines

have

needle

holders

with

smaller

holes

(shank

size

1.65

mm).

134-35

for Pfaff

machines

142-732/09, 142-732/11, 145 H3, 146 H3, 545 H3, 546 H3,

555

and

4141

134 FLQ for Pfaff

machines

142-720/01-6/01, 142-721/01-6/01

and

144-720/01 in

needle

gauges

from

1.6

2.2

inclusive.

134

for

the

Pfaff

153.

134

RER

and

134

REL

for

the

Pfaff

546

H2.

190

for

the

Pfaff

543-712/...

545

H4.

546

H4.

555

H4.

and

4145

H3.

Needle

point

styles

These

needles

are

available

with

different

type

points

suit

different

requirements.

The

various

needle

point

styles

are

identified

by a

letter

following

the

needle

system,

e. g.

134

Fabrics

are

stitched

with

round-point

needle,

identified

by R,

while

for

leather

work

needles

are

available

with

the

following

styles

points:

Narrow

reverse

twist

point

Narrow

twist

point

LACK

Patent

leather

point

Extra-narrow

wedge

point

PGR

Extra-narrow

wedge

point

with

right-twist

groove

POL

Extra-narrow

wedge

point

with ieft-twist

groove

Narrow

cross

point;

for

long,

straight

stitches

Triangular

point;

for

short,

straight

stitches

Reverse

twist

spear

point

9Twist

spear

point

Rubberized

fabrics

and

plastic

materials

are

sewn

with

round-point

needles.

Needle

and

thread

sizes

The

correct

needle

size

dependent

the

fabric

and

thread

weights.

For

best

sults.

select

the

needle

thin

possible,

but

make

sure

the

thread

can

pulled

through

the

needle

eye

easily.

The

needle

size

(Nm) is

indicated

the

shank

hundredths

millimeter.

From the library of: Superior Sewing Machine & Supply LLC

Select

the

proper

needle

and

thread

sizes

from

the

chart

below:

Needle

size

(Nm)

Cotton

Silk

Synthetic

Linen

130/3

130/4

140/3

200/3-150/3

130/3

100/4

140/3

140/3-120/3

80/3

80/4

100/3

120/3-100/3

70/3-60/3

70/4-60/4

80/3

100/3-

80/3

70/3

100

50/3-40/3

50/4-40/4

70/3

60/3

110

30/3

30/4

30/6

60/3

50/3

120

24/3

24/6

50/3

40/3

130

20/3

40/3

35/3

140

12/3

12/6

30/3

150

10/9

8/6

25/3

20/3

25/3

160

6/6

20/3

18/3

20/3

170

6-ply

fancy>effect

thread

10/3

15/3

10/3

20/3

180

9-ply

fancy-effect

thread

10/3

0.6

dia.

18/3

From the library of: Superior Sewing Machine & Supply LLC

The

needle

size

should

selected

match

not

only

the

thread

weight,

but

also

the

machine

model,

follows:

Model

Needle

sizes

60—

Model

Needle

sizes

80—100

Model

Needle

sizes

110—140

Model

Needle

sizes

160

—

180

The

needle

size

indicated

the

shank

hundredths

millimeters.

Thus,

a No.

100

needle

has

shaft

diameter

100/100

= 1

mm.

Changing

the

needle

Raise

the

needle

bar

to its

highest

point,

loosen

the

needle

set

screw

half a turn, anc

pull

the

damaged

needle

out

the

needle

clamp.

Insert a new

needle

into

the

clamp,

making

sure

that

its

short

groove

faces

toward

the

sewing hook.

Push

the

needle

up as far as it will go and tighten

the

needle

set

screw

securely.

Never

use

rusty

needles.

Threading

the

needle

Pass

the

thread

from

spool

1 (Fig. 8)

through

the

holes

stud

and

thread

guide

around

thread

retainer

clockwise

around

between

te'"'ion

discs

under

thread

controller

disc

6, through

thread

check spri up and th igh

thread

guide

8, from

right to left through the hole in take-up lever j. then down and through thread guides

10, 11

and

12,

and

from left to

right

through

the

eye

the

needle.

The spool

holder

on top of the machine arm w'

">6

suppli'^'f on

special

request

only

because

the

thread

stand

which is

supplied

the

regularly

ensures

smoother

passage

the

thread

the

needle.

From the library of: Superior Sewing Machine & Supply LLC

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