Pfaff 3334-958-01 Service Manual

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3334

-958/01

Automatic

for

making

measuring

7/8"

X 1

Lockstitch

tacks

up

7/16"

to

Instruction

and

Bartacker

Book

PFAFF

Manual

INDUSTRIEMASCHINEN

GMBH

KAISERSLAUTERN

Foreword

This

instruction

matic

lockstitch

swering

the

construction,

interested

all

book

contains

bartacker.

questions

relatedtosewing

function

operatortoget

Though

and

to know

much

not

operation

quicklyaspossible. The

instructions

be

much

the

best

serviced by an

for

appreciated

sewing

machine

expert

mechanics

by all

maintenance

will

We have

containedinthe

work

made

instructionsassimpleaspossible

to

affordabetter

We

welcome

illustrations

any

suggestions

in which

understanding.

round-belt

and

recommendations

drives

machines having V-belfdrive (-958/01).

valuable

intendedasa

information

exhaustively,itoffers

of

the

various

her

machine

second

men

servicing

satisfactorily

every effort to

and

have

included

aretobe

seen

about

the

full-scale

textbook

sufficient

mechanisms

and

attain maximum efficiency

only

which

partofthis

our

sewing

if it is

render

numerous

you

also

apply

Pfaff

book

machines

employed

the presentation of

illustrationsinorder

may

wishtomake.

to a limited

Industriemaschinen

Kaiserslautern

Pfaff

3334

capableofan

information

to

enable

willnodoubt

since

properly

extend

auto

on

every

as

even

and

these

to

GmbH

A.

Instrudtions

1.

Brief

DescriptionofMachine

The Pfaff 3334 and 3334-958/01

for

Operators

are

equipped with centra! bobbin shuttle

and

link take-up

and designed for tacking bars of every description automatically. Their range of applica

tions

embraces

all

branchesofthe

sewing

industry.

The number of stitches per tack varies according to the purpose of employment of the

different

The

subclass

work is held

machines.

between

the

workclamp

and

the

feed

plate

and

moved

under

the

needle as required by the tack design. The needle bar moves up and down only and

does

not

swing

sideways.

The length and crosswise feed motion needed to produce the tack is derived from two

cams which are carried on a joint shaft on either side of the machine arm. The right

cam

has

two control

on the front controls the feed across

slots

milled into its front

motion,

and

back

sides.

While

the

channel

trade

the slot on the back controls the motion

of the work lengthwise of the machine arm. Another function of this cam is to stop the

machineatthe

When you depress the right treadle, the stop

endofthe

sewing

cycle.

motion

mechanism is disengaged, the

tripping lever engaged and the driving belt shifted from the loose to the driving pulley.

While the machine is in operation, the lifting lever is locked so that the work clamp

cannot

be

raised.

The-left cam operates the needle and bobbin thread knives and moves them from the

inoperative to

the

operative

position.

Whenyou depress the left treadle after the machine has been stopped automatically, the

work clamp is raised and both threads trimmed simultaneously.

T

I\!^

Rear

view

Fig. 1

On

the

Pfaff 3334-958/01,

pulleys together from a maintenance free cone clutch, whose lining is located on the

drive

pulley.

When

the

motor is

disengaged.

When

starting

the

the conical idler pulley against the drive pulley lining, thus turning the drive pulley.

machine

now

runsata

The clutch remains idler pulley is automatically

and

the

V-belt

pulley

power

started,

machine by

constant

engaged

idles.

Is transmitted by a slip-proof V-belt.

the

V-belt pulley of

operating

speed.

its starting lever,

until the machine

separated

(Fig. 2)

from the drive pulley, i. e. the clutch is

the

machine

stops

automatically. When it

The

idles,

the

forked clutch lever

i.e.

idler

and

the

stops,

disengaged

drive

clutch is

presses

The

the

2.

Setting

Up

the

Machine

Sewing head and power table are packed separately. To make the machine ready for

use, place the sewing head on the table so that the

mounting

holes are in line and the

machine can be secured in position with the bolts supplied. Then mount the driving

belt and attach the belt guard, screwing its bracket to the back of the tabletop.

The long chain serves to raise the clamp feet. Its top end is hooked into hook A of

lifting

lever B

end

connectedtothe

The

short

(Fig.

chain is

6), the chain pulled through the cutout in the tabletop. and its lower

left

pedal.

hooked

into the

lioieatthe

front

end

of starting lever C (Fig. 3) which

is accessible after tilting the machine back. The other end of the chain is connected to

the

right

pedal.

Drive pulley

Stop

lever

Idler

pulley

.=j

\

I

1

*

V \

^

—V

-I

i I

Forked

clutch

lever

3.

Cleaning

Careful cleaning and regular oiling

smooth

When

the

lubricant.

before

marked oiling points, unthread the needle, take out the bobbin

chinetowork

All important oiling points

with

red

and

Oiling

running.

machineisdelivered,

Remove

you put

paintonthe

this

the

machineInoperation.

the

oil

into

machine.

grease,

all

are

all

together

the

increase

polished

bearings.

the service life of the machine and

parts

are

with

the

dust

Also,

squirtanample

marked by arrows in Figs.

covered

which

with a

rust-preventative

has

accumulatedintransit,

amount

case,

3-6

and, wherever feasible,

of oil into all

and run the ma

ensure

To reach the oiling points in the cylinder arm and the machine base, remove the belt

guard, loosen wing nut D (Fig. 3), swing away catch E, tilt the machine over to the left,

and

restiton

When

the

a day,

the

oil into clamptoabsorb

machine

lint which

the

shuttle

the

wooden

is in

operation

has

accumulatedInthe

race.

Run

excess

oil.

peg.

the

constantly, form

vicinity of

machine

with a

the

habit of removing,

the

shuttle

scrapofmaterial

and

several

putting a

under

the

times

drop

work

of

R

5787

_ ,

&•••'

mi

m

Certain

with

Therefore,

Since

andisnon-resinous,

sewing

mediedbylavish-oiling.

the

Pfaff

dirt

and

oil

sparingly

sewing

troubles,

lint in

machine

usenoother

suchasskippingofstitchesorthread

Excessive

the

but

regularlyl

quantities

machine

oil No. 280-1-120122

oil.

and

cause

of oil

hard

has

are

liable

running.

the

correct

breaking,

to soil

lubricating

cannotbere

the

workormix

properties

4.

Winding

Place

the

when

the

is

locatedonthe

sionInline.Todo

Placeaspoolofthreadonspool spindle.

around

the

slotinthe

and

start

ing.

The

amountofthreadtobe

I

Turn

or

the

Bobbin

bobbin

winderonthe

winderisdisengaged,

belt

guard

this,

Pass

the

thread

and

between

the

machine. Having

screw

left

for

bobbin,

right

less

tension

from

for

thread.

and

loosen

from

discs3.and

the

wound

woundonthe

more

the

thread,

tablesothat

and

screwitdown

canbeadjusted

two

screws.

pin 1

and

the

spool

through

inside,

and

a few turns,

its pulley will not

(Fig. 7). The sideways

an empty

thread

downtobobbin pressinlever

break

bobbinisregulatedbyscre^6,as

contact

bobbin

to bring

bobbinonthe

guide

2, from

4. Pull

5. Hold

off

the

end

the

winder

bobbin

back

the

thread

endofthe

and

continue

machine

tension

and

winder

to front

through

thread

wind

follows:

belt

ten

• J R

J

7579

Fig.

R

9502

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