Pfaff 436 Instruction Manual

PFAFF

436

One

G. M. PFAFF AG, Sewing Machine Factory, KAISERSLAUTERN

y

>/-

•

Needle

with

Locksfifch

Automatic

INSTRUCTION

Superspeed

Lubrication

BOOK

Sewer

Ind

ex

Section

Brief Description of the Machine

Varieties

1.

of

the

SettingUpthe

PFAFF

Machine

435

2. Filling In the Oil

3.

Testing

4. Taking

5.

Winding Threading

6.

7.

Threading

8. Drawing Up the Bobbin

9.

Regulating

the

Qjt

the

Machine

the Bobbin

Bobbin

Needle

the

Thread

Case

Cover

Case

Thread

Tensions

. . .

.

10. Regulating the Pressure on the Material

11. Choosing the

12. Changing the

13.

Regulating

14.

The

Knee

15.

The

Hook

16. The

Mechanical

17. Tilting the

18. Taking

19.

Service

Lifter

the

and

Proper

Needle

the

LengthofStitch .

Opener

Head

of the Machine . . . .

Hook

Apart

Maintenance

Page

2

2 2 3

10 11 12 13

14 14

14 15 16

18

Instructions

20.

The

V-Belt

Drive

21.

Regulating

the

Automatic

22. Regulating the Lubrication of the

23. Regulating the Lubricalion of the Hook . . .

24.

Changing

the

Oil

for

Lubrication

Head

Mechanics

System

Parts

20

21

22 23 25

25. Regulating the Throw of the Threcid Check Spring 25

the

Needle

Hook

26. Setting the

27. Timing

28. Changing the Hook

29. Timing

30.

Disassembling

the

Mechanical

31. Adjusting the Length of Stitch for Forward and Reverse Feeding

32. Removing the Oil Reservoir

33.

Probable

Causes

BaratCorrect

Opener

the

Link

Take-up

and

of Sewing Troubles .

Height .

....

Taking the Oil Pump

Apart

27 28 29 29 31 34 35 36

Instruction

Book

One

This

operators

made

Needle

Instruction

available to both

PFAFF

Lookstifch

with

Automatic

Book

contains

and mechanics alike and therefore should be

rather

436

Superspeed

Lubrication

useful

than

instructions

put away In your files.

Sewer

for

PFAFI=

Brief

Descrlpfion

The PFAFF436

with link

take-up

One

and

of

the

Needle

horizontal

Machine

Lockstitch

be regarded as an improved model of the

of this machine, ranging

on the

grade

withaforced

of material sewn, has mode it

feed

from

lubrication

4,000 to 5,000 stitches

system.

436

Superspeed

rotary

hook, in its mechanical set-up

PFAFF

mandatory

Sewing Machine,

134.

The high sewing speed

per

minute

that

it be provided

depending

Since the manipulations required for this machine, such as for threading

the needle, regulating the length of stitch,

been

changed,

training

With its

properties

branchesofthe

are

eliminated. modern,

of highest

operators

functional design,

perfection,

sewing

industry.

need not bs retrained

this machine

sturdy

and

tying

and

construction,

satisfies

off

seams,

expenses

any

for such re

and

its

demand

have

fitted

may

not

sewing

in all

Variefies

The PFAFF 436 is

Model

A

B

C

The

length of stitch, the

take-up motion,

they

In

be

set

off

the

PFAFF

availoble

ClassofWork

Sheer,

weight Medium

fabrics

Medium

fabrics

above

light

fobrics

weight

heavy

models of the

needle

and

are

intended

thereby

for.

1.

most

instances the PFAFF 436 is

up on on individual

Maximum

Length (Stitches p.

bar

are

Setting

power

436

in the following

of Stifch

7 5,000

6 4,800

5'/,

PFAFF

Maximum

Speed

Indit

per

436 differ in

rise, the

particularly

Up

the

fitted

table.

three

(Stitches

Minute)

4,500

presser

adapted

Machine

for individual

varieties:

Needle

System

133

134

regard

foot

clearance,

Presser

Clearence

R

to the maximum

to the class of work

power

''Ua"

The machine is driven by a '/» HP motor, friction clutch type. (Type of

current

and

tension

optional

to suit local requirements).

Power is transmitted from the motor to the sewing machine by

of a V-belt,

For 50 cycle current, a

whereas

appropriate.

2V0.1"

wide

(DIN 2215).

motor

for 60 cycle current, a

performing 2,800 R.P.M. should be used,

motcr

performing 3,400 R.P.M. would be

Foot

"/ic '

and

drive to

means

the

The

motor

pulley

per

of stitches

The below

minute of the machine.

table

number of stitches

ters.

can

easilybeexchangedtoalter

should be consulted for all

obtainable

in relation to the

the maximum number

data

regarding the maximum

various

motor

pulley

diame

Diameter

Balar^ce

(64 mm)

Head

very

of

Wheel

and

carefully lo

50 Cycles 60

Diameter

Motor

Pulley

3'Vei"

3'"/ic"

(95 mm)

(100mm) 4'Vg4" (106 mm) 4%2"

(112mm)

4 (118 mm)

stand

are

avoid

packed

damage.

of

Stitches

per

Minute

4,200

4,400

4,600

4,800

5,100

separately.

After

taking

Diameter

Motor

3 (80 mm) 3'Vn2"

3

35/^,,"

3^'/c.i" (95 mm) 3";ic"

The

head

off

the lid of the

Cycles

of

Pulley

(85 mm) (90 mm)

(100 mm)

should be

box,

Stitdies

per

Minute

4,200 4,500 4,800

5,000

5,300

unpacked

unscrew

the wood screws holding the cushioned wooden blocks supporting the

machine thoroughly, mounting the

the motor

the

not

machine in a can. It is a spindle oil, viscosity 3.2° Engler

has

head

inside the box. Take the

and

set

rubber

somewhat,

V-belt

tensionisinstructed

The

machineIsdispatched

be

run

whileinthis

The

amount

proved

of oil

very

it up on the

V-belt,

and

condition!

2.

required

satisfactory

head

rubber

place

the

than pull the

in

Section

without

oil filling in

Filling In

for the first

out carefully,

pads

belt

on the machine pulley, lift up

belt

on the motor pulley. Setting

20.

ihe

Oil

two

for the lubrication of the

on the

the

fillings

table.

oil

reservoirs

remove

To

comes at

20° C, which

PFAFF

the

dust

facilitate

and

must

with the

436. To fill

Photo

1

in the oil,

(0.51)of reservoir. (Photo 2) if

between

and

should the

shown b

serving

hook oil,

proceedasfollows: Remove

oil,

and

Now

checkatthe

the

amountofoil filled in is sufficient. The oil level

the

0.3 I

two

respectively

top

that

coverberemoved

it isofadvantagetolubricate

this

purpose

remove cm^) of oil. ,As long oil level

reservoir.

top

tube

surface

while

If,

however,

of the oil

waitafew

marks

with

is on

screwc,and

as

the

machine is in

the

sealer

minutes

oil level

indicating the maximum

the

machine

topofthe

fill in

the

red

pointof.the

nut, oil should be filled up.

screw

d (Photo 1), fill in

until it

gaugeinthe

being

and

oil be filled in there. Experience fias

machine

approximately

point

of the

operation,

the

has

accumulatedinthe

frontofthe

and

minimum levels of 0.6

idle.

Undernocircumstances

hook

separately.

arm

(Photo

1). To fill up

4.5—4.9 cu. in. (75—80

float

.spindle is visible in

there

float

is sufficient oil in the

spindle

is flush

about

oil

should

Oil

1 pint

reservoir

the

with

the

oil

be

3.

Testing

It Is

removed. with the chine pulley must the

recommended

First of all,

voltage

rotates

motor machine, cut in the on the

rotates

minals.

ot the oil

treadle,

in the

Now

gauge

proper

press

correctly (indicator

to

test-run

however,

given on the

in the

proper

rotateinreverse

motor,

and

hold the

make

sure by the jerk of the

direction. If not, simply

down

the

dome on the top of the machine arm if the pump

capintop

For regulating the hook lubrication

Note:

the

Never run the machine unless a piece of fabric is inserted under

presser

footorthe

latterisraised.

the

Machine

the

machine

make

sure

rating

plateofthe

direction, i. e.

direction. Therefore,

balance

treadle

and,

while running the machine, check

position).

system,

Photo

with

that

thread

the

line

motor,

toward

and

voltage

and

the

operator.

before

wheel with your right

balance

exchange

see

the

Section 23.

two

2

bobbin

corresponds

that

the

Never

running the

hand,

wheel

that

motor

works

case

ma

tip

it

ter

4.

Raise the

Taking

thread

Ouf

take-up

fhe

to its highest position,

latch with the thumb nailofyour

bobbin

case

cover

pull the

Note:

bobbin

As long as the latch is

case.

outasshown in

Bobbin

left

open,

Case

hand,

and,bymeansofthis lotch,

photo

the bobbin

iilTiTIM

3.

Cover

open

cannot

the

fall

bobbin

out

case

of the

5.

Winding

For this

which

operation

featuresanumberofimprovements.

the bobbin winder for

SYSTEM

Photo

the

ISA-

3

Bobbin

power

drive (Photo 4) is used

The bobbin winder spindle runs in a sintered steel bushing making lubrica

tion of the

To reduce the high

pulley

The rim of the pulley

concave

round

has

been

bottom

belt

canbeused.

winder

completely

speed

increased

surface

superfluous.

somewhat,

to

was

given a V-shaped profile so as to

of

the

V-belt

the

fit

diameter

on it

well.Ifnecessary,

of the bobbin winder

make

even

the

a

hjLv

Photo

4

Fasten

the

from

the

bobbin

machine

belt

winder

so

to the

thatitwill

table

with its driving pulley for enough

not

touch

the

is disengaged. A windshield mounted on the winder thread

from being

oble leather

Pass

between

the

the tension discs 3, to the bobbin. Now

inside-out through the slot in the

the

bobbin

winder has flap of engaging lever 6. When sufficient bobbin, the wincier will

wound

on the

dragged

pad

mounted on the

thread

from the spool 1 through

over

toward

base

face

winder

madeafew

spindle 5,

revolutions.

stop

and

hold the loose

automatically. The amount of

bobbinisregulatedbyscrew

Turning it Turning it

right—More left

—Less

the belt by the suction. An adiust-

serves to

eyelet

stop

2, clockwise

pass

of the bobbin, place the

endofthread

Start

the winder by pressing down the

thread

has

7.

thread

belt

when

base

the

prevents the

the winder silently.

around

the end of the

latter

until the

been

wound on the

thread

winder

and

thread

on

to be

6.

Threading

Insert

the

full

winds

clockwise

Pull

the

the delivery

center

stud toward audibly. This is very innportant

may

the

result.

bobbin

(Photo 5).

thread

eye

in the

operator.

into

into the slot 1,

2. Place the bobbin

bobbin

case

Press the

ihe

the

bobbin

and

basesothat

bobbin

as

otherwise

Bobbin

case

draw

case

Case

cover

so

that

it under the tension spring into cover with the bobbin on the

the

bobbin

in until it clicks in position

needle or

case

bobbin

the

case

thread

latch

breakage

un

points

Photo

5

7.

Threading the

PFAFF

133/134

Threading

PFAFF

436

machines, passes in plain view of the operator (Photo 6) so

presents no difficulty since the thread, as with

fhe

Needle

that every user should be familiar with it. Pass the thread from the thread

unwinder to thread guide pin 1 and, to prevent vibration of the thread

high

all

speed,

three

through

holes in fhe

both of its holes.Bythe same token, pass it

thread

retainer2as

showninphoto6,and

through

then

be

tween tension discs 3, to threod check spring 4, below guide 5, through

guide 6, right-left through the take-up eyelet 7, down to thread guide 8 and

needle

bar

eyelet

you

9, and left-right through the needle

8.

Drawing

Hold

the

until

endofthe

the needle moves down and up again, thus catching the bobbin

needle

Up

thread,

the

Bobbin

and

turn

Thread

the

eye

balance

10.

wheel

toward

thread which comes up through the needle hole in a loop (Photo 7). Place

both

threads

back

under the

presser

foot.

at

Photo

6

Basic Rule:

This in the hook necessary

To

The

materialasshown

Stop

the machine or

in its

race,

highest

should or slipping

precaution

to hold the

9.

Regulating

obtainaperfect

needle

and

bobbin

in Fig. 8.

position.

alwaysbetakentoprevent

out

needle

and

seam,

observe

threads

Turning the tension nut M clockwise

tighter;

8

turning it

counter-clockwise

commence

of the

bobbin

the

sewing

needle

threads

Thread

the following points:

should

be

makes

will

makeitlooser

only with the

jamming of the eye. when

Tensions

locked

the

needle

In this

case

commencing to

in

fhe

center

thread

(Photo

6).

take-up

thread

it is no't

sew.

of

the

tension

Photo

Fig. 8

7

The bobbin

thread

tension is regulated by means of the small hook screw

driver. Turning tension screw z clockwise mokes the tension tighter;

turning it

counter-clockwise,

looser

(Fig. 9).

Fig. 9

and

The tensions should be reguloted in accordance with the material used

and so as to obtain tightly set stitches forming a nice and straight seam,

without

resistant

To

one

thread

needle

cularly if the

of

Note: The needle

puckering the

For this purpose the

Thus, for

properly

can

In Fig. 11, the

The

sheer

thread

tell

whether

tension

operator

or the

fabrics

due

regulate

too

looseasshown

needle

too

tight.

will

bobbin

thread

the

fabric.

thread

loweredasraising the

material.

gradeofthread

a thin

low

thread

needle

and

elasticity

to its

the

thread

have

to decide in any particular

thread

tension

used plays a decisive role.

soft

thread

should be used. Stiff

for

requires

be

appropriate

tensions

thread

in Fig. 10.

tension

Fig. 10

Fig. 11

requires

is unfit

tensionistoo

may

practically

some

tightorthe

too

loose or the

any

experience

case

if either the

adjustment,

and

fabric.

until

bobbin

parti

forms small knots or loops on the upper or underside

tension can only be

presser

bar

adjusted

automatically

with the presser

releases

the tension.

bar

10.

Smooth

Regulating

and

even

feeding

the

of the

Pressure

work

on

the

Material

as wellaspreventing

chafing of

the material by the teeth of the feed dog depend on the setting of the

proper

foot.

crease

pressure

Note:

10

amountofpressure

Turning

presser

bar

the pressure for heavier

for

lightweight

When

stitching

a piece of tissue

adjusting

materials.

delicate

paper

to be

exerted

cap

materials;

and

flimsy fabrics, it is

underneath the material which will

the underside of the moterial, prevent

torn

off

afterwords.

on the

material

by the

presser

screw V (Photo 20) inwardly will in

turning it outwardly will

ease

the

recommendedtofeed

protect

puckering,

and can readily be