Pfaff 3335-0 User Manual

®

3335-0

.^•1

Automatic

Cylinder-Bed Organized

Lockstitch

Bartacker

with

OB

Shuttle

R

8993

©

R

8786

Pfaff

This

bobbin

sizes

light and

1^/i6"x2",or30x50

3335-0A(B)

automatic

shuttle,

up to No.

cylinder-bed

and

30/3.

medium-weight

bartackerisorganized

uses

needle

sizes

It is

specially

up to No.

designed

for

120

making

materials, the maximum tack size being

mm,

lengthwise

and

across.

with

and

central

thread

tacks

on

Heavyweight materials are tacked on a variant of this machine,

knownasPfaff

and

featuresanextra-large

Construction

The

Pfaff

incorporates

By

redesigning

feed

across

3

basic

versionofthis

varieties

3335-0

and,

3325,

Features

is a further

notable

the

motions,

hence,

whichisavailableinModelsCandDonly

beak

shuttle

in lieu of

developmentofthe

improvements.

elements

controlling

Pfaff's

designers

machine

canbeassembledinbulk.

which

the

succeededindeveloping

canbeused

theCBshuttle.

Pfaff

feed

lengthwise

for

3334

all

subclass

and

R

8789

Sewing organization of the Pfaff

Machines having the same gear ratio differ only in the design of

the

feed

cam

slot,

the

feed

plate

and

the

clamp

feet.

This

was

accomplished by establishing accurately calculated

fixed points on the machine. As a result, one and the same feed

cam

and

the

same

Pfaff

all

subclasses

control

This

3335-0

the

feed

generous

setoforganizational

machines of any

gear

up to a size of l^/i6" x 2". The fixed points used to

motion

are

the

sameonall

standardization measure greatly simplifies store-

parts

ratio to make

our

canbeused

tack

designs

new

bartackers.

keeping and enables users quickly to convert the machine when

production shifts to a

one

subclasstoanother

subclass

conversion

its clamp feet, and

new

line. Conversion of

can

be easily

parts, i.e.

the

feed

feed plate, can be readily exchanged on

the

accomplished

cam,

the

arch

machine from

because

ciamp

with

machines having the same gear ratio. If no mechanic should be

around, any operator can do this job herself.

which

Minor deviations needle and are

caused

may occur in setting

by an unfavorable accumulation of inevitable

tolerances can be remedied by adjusting

with

the

aidofa

3335-0-341

screwdriver.

R

8790

Pfaff

3335-0

the

feed parts to

two

eccentric

with

central

bobbin

the

studs

shuttle

on

of

all

1

Operation The

needle produce

moved

The

feed The

the

cams

of

the

The the the

Both

cylinder

The

on

the

cylinder of

the

emanates

cam armbythe

the

Except connections underside. carries

of

the

Machine

machineisstartedbydepressing

is of

the

rigid

the

different

under

the

workisheld

plate.

principal

seam

which

right, or

and

machine

motions

the

are

arm.

feed, grooveonthe oneonthe

motions

lengthwise

feed

are

bedbymeansofvertical

back

sideofthe

armbymeansofthe

cam.

from

tack

needle.

between,

required

trimmingofthe

carriedona

cam

outside

inside

produces

conveyed

feed

motionistransmitted

The

crosswise

the

channel

andisconveyedtothe

two-armed

outside

for a

The

merely

of

the

large

pass,

topofthe

the

feed

holeonthe

the

cylinder

feed

bar

type,itdoes

designs,

and

guided

for

joint

has

two

pattern-forming

controls

the

to

the

feed

camtothe

two-armed

feed

track

feed

driving

lever

and

cam.

right

armiscompletely

cylinder

fulcrum

the

right

not

swing

therefore,

by,

the

automatic

threads

transverse

the

are

shaftoneither

crosswise

lengthwise

feeding

two-armed

from

driving

lever

motion,onthe

on

the

front

mechanisminthe

two

ball-joint

side

through

armiscovered

stud.

treadle.

Since

the

sideways.

the

material

clamp

feet

and

the

production

derived

grooves.

feed

from

motion,

motion.

two

side

While

mechanisminthe

levers.

the

channel

track

blockinthe

locatedatthe

sideofthe

other

back

hand,

feed

cylinder

connections

which

the

feed enclosedonthe by a

plate

which

To

is

of

on

R

8787

Reverse

sideofrhe

Pfaff

3335-0

showing

the

knife

cam

The

feed

cam.inaddition,

ference thread threads

The

knives

last

of

to

backsofthe

At

which

nipper

when

are

trimmedatthe

left, or knife,

and

swings

stitchisbeing

thread

to be pulled off

start

the

completionofthe

servetostop

stitch,

matically. Only after

operator press

trim

both

down

threads.

cam

them

formed.

carries

the

additional

thread

completionofeach

operates

forwardtothe

This

the

spool

both

threads

ready

for

trimming.

sewing

the

machine

the

left treadle to raise

tripping

machine

is pulled

the

needle

operative

action

causesasufficient

and

being

action,

the

has

come

pointsonits

andtoactuate

through

sewing

and

bobbin

positionasthe

the

bobbin

pulled

machine

to a

the

work clamp

taut

stop

and

with

stops

circum

cycle.

thread

amount

which

over

auto

can

the

both

the

and

During the sewing action, the lifting lever is interlocked by the

knife

camsothat

Double

sudden

The

Pfaff

motor

which

Machines

driving

Best

results

buffer

stops.

and,ifdesired,

greatly

belt.

the

work

springs

absorb

3335-0isdriven

canbefitted

fitted

are

simplifies

obtained

the

withabelt

clamp

cannot

the

momentumofthe

by a

constant-speed,

withabelt

regulationofbelt

take-up

with

the

Pfaff

be raised inadvertently.

machine

14-HP

take-up

tensions.

hanger

may

useanendless

3335-0,ifequipped

electric

hanger

with

electromagnetic control. On this machine the operator has merely to

operate

When

a foot control switch

the

switchispressed

which

downtothe

has

first

two

switch

position,

positions.

the

two-

at

fl

9000

Electromagnetic

controlofthe

Pfaff

3335-0

part

work

clampislowered

work

can

still

be

repositioned

again.

When

the

switchispressed

position,

At

and The

enables

the

machineIsstarted.

the

completionofthe

the

work

clamp

remarkable

the

operatortoboost

is raised

work

simplification

All Pfaff bartackers normally

To

enable

the

Pfaff

3335-0toobtainahigher

it has

been

redesigned so as to permit the use of a

motor.

This

motor

starts

900

s.p.m.

and,

after mediately slows

When 1,400

mechanically

switchesto1.800

down

againtothe

the

motor

idles, it is

r.p.m.

When

which

the

then

tion and, thus, instantly accelerates

This

procedureisreversed

machine runs at half

the

onto

the

sewing

completely

her

operate

goods.Atthis

after

releasing

all

the

way

downtothe

cycle,

both

threads

automatically.

accomplishedbythis

output

easily by10to15per

at a

speedof1.200

the

output,

stage,

foot

are

however,

the

control

second

trimmed

machine

cent.

s.p.m.

two-speed

to drive

the

starting

the

machine

first

stitches

s.p.m.

have

Before

speed.

four-pole-connected

the

at a

been

machine

and

speed

made,

stops,

runs

im

machineisstarted,acontactorisactuated

switches

top

the motor to

the

when

the

speedatthe

two-pole

connec

machine to 2,800 r.p.m.

machine

stops.

Since

beginning and the

the

end

of the sewing cycle, the starting stitches will be formed reliably

and

the

seam

tied

off properly. In

stop

motion mechanism will be reduced considerably. If driven

byastandard

than

1,200

breaking,

motor,

the

Pfaff

s.p.m.inordertoavoid

needle

breakage

and

addition,

3335-0

excessive

wear

should

skipped

wearofthe

and

tearofthe

notberun

stitches,

machine.

faster

thread

of

it

at

Pfaff

3335-0

Subclasses

The following diagrams

size,

indicating

their

The dimensions given represent tack. This larger. With

machine,

lengthwiseofthe

means

the

they

canbereduced

show

the various tack designs in actua

dimensionsinmillimeters.

the

maximum size of

that

the tacks can only be made smaller, not

the

respective

aid of adjustment possibilities inherent in the

cylinder

by up to

arm.

30%

crosswise,

and

20%

Owing to the large variety of designs, their diagrams are grouped

accordingtothe

group,

the

Since

each

possibilities

numberofstitchesineach

diagrams

are

arrangedbysubclass

tack.

Within

numbers.

each

tack can be used in many different ways, its application

are

not

listedinthis

table.

Pfaff

-21

3335-0

7

Stitch

9

Stitch

Tack

Design

-10

-ti-

-112

-sH

-7

-28/2

-19

-29

~ 6 -I '

-75

n

,

-28/1

-42

p]}

L

s-J

14

Stitch

L..

-389

Tack

Design

-390

— 9 1

16

Stitch

Tack

Design

18

-38

C—

,

Stitch

Tack

-73

v_U

Design

-172

-62

II

N i ,

' \

-408

•7

I

1

J

in

•358

- J —

0.5

U_L

21

Stitch

Tack

Design

-1/1

-11/i

-1/2,

, -11/2 ,

cr:ziii|4

-28/3

==

I •

P 28 - ^

-50

-52

-65

^

^_L

1—7—1

.

1"

mm-

L.?^l

-31

5 r

-80

'--5—1

T"

9,

•6

•5/1

J

mm-

L.7—

,

-9

ll.

-26

'

I-.. 5 —I

-49

I—9

•14

-35

—4

-23

rrr-^f

-36

.

[""V-

IS 1

t:,-#

L____Q

-119

t 12

—-J

\

-124

/I.

V--U

;s i

7,-r

-279

TT!

I I «>

1 r

-311

—

50

-416

r

-406

-432

-433

~

V\

/

90'

\

ij

24

Stitch

Tack

Design

-5/2

1^7

-J'V

-361/1

-415

-)8

L-

-361/2

-176

-j.

-410

"W

-412/3

u-

412/4

-435

r

y\

^1

-445

J

10

Li

21 1

-446

22.7-

/

U 24 d

28

Stitch

Tack

Design

-5/3 ,

pwi-

r^-7

'

1 22 1

—

s|l

-98

-122

3B-

n=":

-22

-32/2

-240/1

-25/1

-32/3 -41

I—

,0 ,

///

-103

-I

-25/2

-

wwvi:

vwwvj.a

-126

-282

,/X

-27

a.

-134

12 1

w

-333

-334

y J

< ^

<

IVv\WAA/V\i/

1 is 1T

-340

-323

:4i

T

7

i

11