Pfaff 487 Service Manual

Service

Manual

PFAFF

INDUSTRIEMASCHINEN

GMBH

KAISERSLAUTERN

Instructions

for

adjusting

the

Pfaff 487

Important

note

Never use a C-clamp on the needle bar of Pfaff 480

would

damage

On machines which

its

special

coating.

are

put into operation for the first time or which have been idle

series

machines

because

this

for a longer period of time(1or 2 months) make absolutely sure to check the hook

lubrication

Important

All

adjustments described In this book also apply to version N machines (6.0 mm maximum ~ -

stitch length). An exception

knurled

Ifonthese

Is

set

at "0", all adjustments which are carried out with the stitch length

be

made

note

all

with

system

for

versionNmachines

the

way

around.

machines

the

reverse-feed

(Section

the

reverse-feed

14).

are

machines supplied earlier whose stitch length control Is

control

control

depressed.

canbemoved

when

the

stitch

length

set

at "0" must

control

If on machines having a stitch length control which Is knurled all the way around the

reverse-feed control

the stitch length

reverse-feed

control

cannot

set

at "0" must be

depressed.

be moved, all

made

adjustments

which have to be

with the stitch length

carried

set

at "1.5" and the

out

with

Tools,

gauges

1

setofscrewdrivers

1

setofspanners

1

22-mm

1

setofalien

1

metal

1

adjusting

1

gauge.

(gauge

1

wrapper

1

stripofwhite

and

other

equipment

with

blades

from2to10mm

from7to

spanner

keys

ranging

rule

pin, 5 mm dia.. No. 13-030 341-05

No. 61-111

foot

with

642-19

No. 61-111 639-20)

System

paper,

134

sewing

14 mm

from

needles

thread

1.5

needed

wide

to 6.0 mm

and

for

adjusting

material

wide

for

the

testing

Pfaff 487:

purposes.

1

1.1

Preparations

Take

out

for

both

screwsofthe

adjustment

face

cover

and

remove

the

cover.

Note:

The rnachlne can be blocked with the needle bar at different positions by

inserting a pin in one of the five holes of the bearing plate (Fig.

1.0.1).

After positioning the needie bar, push the pin into the appropriate hole

untii it enters the recess behind the bearing plate, thus blocking the

machine.

The

functionofeachofthe

Hole

1 (0.6 n.o.T.) = 0.6 mm

is

used

for

timing

the

Hole

2 (o.T.F.) =

holeIsused

Hole

3 (0.6 n.u.T.) = 0.6 mm

for

timing

topoftake-up

holeisneededonPfaff 481

Hole

4 (Schl-H 1.8) =

hole

servestotime

Hole

5 (o.T.N.) =

the

topofneedle

five

feed

eccentrics

the

synchronizer.)

and

1.8

mm

sewing

holesisas

past

the

lever

past

the

485

machines.)

past

the

hook

and

bar

stroke.

1

follows:

topofthe

and

adjusting

stroke.

bottomofthe

bottomofthe

the

bobbin

(On

needle

the

subcl.

case

bar

feed

needle

needle

opener.

dog

-900

stroke.

height.

machines,

bar

bar

This

stroke.

stroke.

hole

this

(This

This

Zeroing

the

bottom

feed

motion

Correct

setting:

Note:

With the stitch length

balance

The

Fig. 2.0.2).

wheelIsturned.

bottom

feed

motion

set

at "0", the feed dog must not move when the

can

alsobezeroed

with

the

gearcase

1

closed

(see

2.1

2.2

2.3

2.4

2.4.1

2.4.2

2.4.3

2.4.4

2.4.5

2.4.6

2.4.7

2.4.8

Remove

Raise
Remove

Adjustment

Turn

Take

gasket,

Take

Loosen

on

To

crank

Rotate

until

longer

In

Check

the

needle

the

presser

the

knee

proceduretobe

the

stitch

out

the16screwsofthe

making

the

oil

sponge

screw

Its

shaft

3.

the

the

moves.

position,

this

against

adjustment.

balance

feed

adjustment

facilitate

this

length

sure

2 of

dog

tighten

bar

lever

feed

from

the

needle

lifter.

together

controlto"0".

with Its

applied

holder.

when

gearcase

that

the

outofthe

resistance.

oil, If any, Is

gearcase.

crank1just

sufficiently to allow

InsertascrewdriverInthe

wheel

(or

andatthe

rather

screw

(see

"Correct

same

the

screwdriverinfeed

2 of

feed

setting").

joint

and

the

gearcaseIsopen.

cover

drained

time

crank

1.

tilt

the

machine

and

remove

the

off into a container.

the

cranktobe

slotoffeed

adjust

feed

crank1on

rock

shaft

cover

crank

back.

rock

its

with Its

turned

shaft
shaft

3) no

2.5

Adjustment

proceduretobe

applied

when

the

gearcase

coverIsclosed.

2.0.2

2.5.1

2.5.2

2.5.3 To

2.5.4 With

2.5.5 In

2.5.6

Turn

the

Loosen

facilitate

crank

the

regulator
shaft

crank)

this

screw

Check

stitch

length

screw

6 of

adjustment,

3 (Fig. 2.0.1).

aid

of a

shaft5until

remains

position,

6.

this

hold

adjustment

controlto"0".

the

feed

regulator

InsertascrewdriverInthe

spanner

absolutely

the

the

(see

feed

feed

"Correct

pushed

dog
still

regulator

3

(or

when

setting").

crank.

over

rather

shaft

hexagon

the

slotoffeed

tension

the

screwdriverInthe

balance

fast

wheelIsturned.

with

the

nut4turn

spanner

rock

and

feed

tighten

shaft

feed

rock

Bottom

feed

driving

motion

Correct

With

setting: 0.6

move

the

machine

mm

past top dead center

when

the

reverse-feed

set

m

for its

longest

(pin

controlisoperated.

stitch

and

the

needle

bar

positioned

in hole 1), the feed dog should not

3.1

3.2 Bring

3.3

3.4 To facilitate

3.5 Move

3.6 In this position, tighten

3.7 Pull

3.8

3.9

Loosen

machineinthis

Set

the

both

the

machine

screws

needle

positionbyinserting

adjustment,

crank

3.

the

driving

screwdriverinfeed

2 in

Check

Pull

eccentric

the

feed

this

the

reverse-feed

pin

outofthe

driving

adjustment

screwdriver

2 in

feed

bar

to a position 0.6 mm

for

its

longest

insert

control

1 until its

rock

notchIsvisible

shaft

crank

the

accessible

hole in

eccentric

(see

outofthe

1.

"Correct

driving

eccentric

the

stitch.

the

screwdriverinthe

up

and

3) is

compieteiy

screw

the

bearing

setting").

slotinfeed

past

pin in

down

plate

rock

and

2 in

1.

top

dead

hole

1.

and

simultaneously

the

motionless.

feed

and

tighten

shaft

crank

center

slot

feed

driving

3.

and

of feed rock

(or

turn

rather

dog

eccentric

the

second

block

shaft

1.

screw

the

feed

the

Bottom

feed

lifting motion

Correct

setting:

With the stitch length control

0.6 mm

past

top

dead

center

set

(pin hole 1), the feed dog shouldbeat Its

highest point. The notch in feed lifting

perpendicularly

below

the

centerofthe

at "0" and the needle bar positioned

eccentric

shaft

1 should then be positioned

(Fig. 4.0.2).

4.0.2

4.1

4.2

4.3 Bring

4.4 Turn feed lifting

4.5 In this position, tighten

4.6 Pull

4.7 Check this

Turn

the

stitch

Loosen

machineinthis

notch in

centerofthe

amount

2

too.

the

both

the

of play

pin

needle

feed

outofthe

adjustment

length

control

screws

2 In

feed

bar

to a

positionbyinserting

eccentric

lifting

shaft

(Fig. 4.0.2).

position

1 until the feed dog is at its highest point

eccentric

the

between

feed

hole in

(see

"Correct

to "0"

and

lifting

0.6 mm

the

1 is

accessible

lifting

eccentric1and

the

bearing

remove

eccentric

pin in

positioned

screw

plate

setting").

the

1 (Fig. 4.0.1).

past

top

hole

2, making

and

bedplate

dead

1.

cover.

center

perpendicularly

sure

the

tighten

there

bearing.

the

and

below

is a smali

second

block

and

the

the

the

screw

Feed

dog

height

With the stitch length control

set

at "0" and the needle bar positioned 0.6

mm past lop dead center (pin in hole 1), the feed dog should be centered

in its slots and

contact

the

gauge

throughout its entire length (Fig. 5.0.2).

Bring the needle bar to a position 0.6 mm

machineinthis

Turn

the

Loosen

screw4and

Place

the

the

front

Lower

the

Center

the

Push

the

screw4lightly.

Turn

eccentric

throughout

Tighten

in

its

slots.

Raise

the

and

pull

Check

this

positionbyinserting

stitch

length

gauge

presser

feed

bar

under

dogInits

upwards

edgeofthe

feed

bushing

Its

entire

both

screws5and

presser

the

pin

outofthe

adjustment

controlto"0".

both

screws

the

needle

bar

liftertorest

slots.

until

5 a until

length.

screw4,making

foot lifter,

(see

holeinthe

"Correct

5 (Fig. 5.0.1).

presser

plate

(Fig.

the

the

remove

past

the

pin in

footsothat

5.0.2).

the

presser

feed

dog

feed

dog

the

gauge

bearing

setting").

top

dead

hole

its

footonthe

contacts

Is In

sure

the

from

plate.

1.

front

the

contact

feed

under

center

and block the

edgeisflush

gauge.

gauge.

Then

with

dog

moves

the

presser

the

tighten

gauge

freely

with

foot

6

Centering

the

needleInthe

needle

hole

Correct

setting:

A

straight

hole

needle

(Fig. 6.0.2).

i

shouldbepositioned

i

8

i

exactlyInthe

middle of

the

needle

Bring

the

needle

bar

to its

Insertanew

Take

out

Loosen

Loosen

Turn

turn

(Fig. 6.0.2).

In

Pull

tighten

Replace
Loosen

the

Check

screw7of

screw

the

the

this

position,

out

screw

screw7again

needle

this

screw6with

needle

screw

8 of

balance

eccentric

the

eccentric

7.

bar

frameisnot

adjustment

6 in

the

the

the

wheel

tighten

(system

eyeofthe

eccentric

needle

stud

screw

its

and

(see

highest

while

until

stud

washer

point

134 kk) into

needle

stud.

bar

frame

moving

the

8.

until

on

turn

the

under

stress.

"Correct

and

the

bar

hinge

the

needle

it

contacts

the

eccentric

balance

Then

setting").

remove

needle

the

bar.

frame

(Fig.

stud.

needle

is

bar

centered

the

stud

wheelafew

tighten

presser

needle

and

screw7securely

foot.

6.0.1).

frame

sideways,

In

the

needle

bar

tighten

turnstoensure

frame

the

and

hole

and

screw.

that

again.

Correct

setting:

Eccentric

There

of

the

oil

distributor

of

play

hook

shaft

shouldbea

clearance

ring 3 (Fig. 7.0.2). Also

between

bearing

clearance

cutofthe

the

gears.

of 0.4 mm

needle

between

hook

point

and

the

when the sewing hook is up

there

shouldbea minimum

middle

against

amount

7.0.1

7.1

7.2

7.3

7.4

7.5

7.6

7.7

7.8

7.9

7.10

7.11

7.12

7.13

Remove

Loose

distributor

Loosen

Turn

(see

stand

Loosen

Push

Turn

positionedinthe

Reposition

een

sure

contact

In

Loosen

Reposition

Tighten

gear

of

Do
following

the

screw

ring 3.

screw4on

eccentric

arrowInFig.

too

close

both

the

sewing

the

sewing

hook

point

however

with

this

position,

both

both

7 —asseen

the

shaft

not

tighten

adjustment.

needle

screws

hook

oil

screws

gear

and

plate

1 of oil

hook

7.0.1)

together.

and

regulating

the

surfaceofthe

shaft

and

6 of

the

bearing5so

the

sewing

hookupagainst

hook

and

middleofthe

shaft

and

that

the

distributor

securely

8.

7 on its

reposition

bearing5until

the

middleofthe

bearingIsnot

ring

tighten

shaft

screws8securely,

in its

both

screws6as

directionofrotation

gears

have

yet

the

feed

valve2and

two

spur

oil

distributor

clearance

3.

screw

until it is

making

enough

and

leave

dog.

bedplate

that

gears

hook.

the

cutofthe

there

clearance

turned

4.

exactly

sure

play.

swivel

(Fig. 7.0.2).

the

recessIsvisible

have

ring 3.

needle

Is a

and

in line with

that

— is

the

oil

-Q

the

oil

neither

too

bar

until

the

the

of 0.4

hook

needle.

clearance

cutofthe

that

the

the

second

positionedinthe

tube

swivelled

rmirn

m

tube

out

of oil

from

mm

remains

away

below

play

point

betw

making

gear.

groove

for

much

hook

needle,

small

screwofspur

nor

is

In

the

8

Needle

bar

height,

hook

timing

and

hook-to-needie

clearance

Correct

setting:

When

the needle bar is positioned 1.8

mm

past

bottom

dead center

in hole 4), the top edge of the needle eye should be positioned 0.8

below the bottom edge of the hook point

should be a clearance of

8.0.2).

0.1

mm

(Fig.

8.0.3).

In this position, there

between hook point and needle

s

oo

o

(pin

mm

(Fig.

8.0.2

8.1 Bring the needle

that

the

positionbyinserting

needle

8.2 Loosen both

8.3 Turn

8.4 Move

8.5 In

8.6

8.7 In

'8.8

8.9

the

lineofthe

the

(Fig. 8.0.3).

turned

Adjust

its point

posite

the

sewing hook on its ^haft until its point is exactly opposite

the

needle

top

edgeofthe

this

position,

(Fig. 8.0.1).

the

and

the

bobbin

this

position,

Pull the pin out of the hole in the bearing plate and tighten the second

screw

2.

Check

this

bar

does

screws

needle.

barupor

tighten

sewing

hook

the

needle

center

line of

case.

tighten

adjustment

to a point 1.8 mm

not

strike

the

1 in

needle

(see

pin in

the

both

laterally

(center

the

hole

needle

down

eye

screws

the

needle

accessible

"Correct

until

9

the

until

and

of scarf), making

past

sewing

4.

bar

connection

there

the

1, making

there

and

the

screw

setting").

bottom

dead

hook. Block

Is a

clearance

bottom

sure

is a

clearance

center, making

the

stud

(Fig. 8.0.1).

edge

of the sewing hook

that

the

sure

the

position finger Is In

2.

machineInthis

the

of 0.8 mm

needle

of 0.1 mm

between

bar

between

hook point Is op

the

slot

sure

center

is not

of

Eccentric

bobbin

case

opener

shaft

bushing

Correct

setting:

When at Its left point of reversal, bobbin

case

opener finger 3 should be

positioned vertically so that it Is exactly opposite the lug of bobbin case

base

4 (Fig. 9.0.2).

9.0.1

9.1

9.2

9.3

9.5

Loosen

Turn

Turn bushing 2 until

case

from

9.4

Check

screw

1 of

eccentric

the

balance

base

the

sewing

In

this

position,

this

wheel to bring

4. (Fig. 9.0.2). Make

hook.

tighten

adjustment

opener

screw

(see

bobbin

case

opener

shaft

the

opener

finger to Its left point of reversal.

finger 3 is exactly opposite

sure

1.

"Correct

10

the bobbin

setting").

case

bushing

can

2 (Fig. 9.0.1).

the

lug of bobbin

be easily removed

10

Position of

bobbin

case

opener

Correct

setting:

There

should

finger 1 and

the

left of its stroke,

bobbin

case base 5

there

should be a

bobbin case base 5 and position finger 6

be a clearance of abt. 0.8

(Fig.

mm

10.0.2).

clearance

(Fig.

between

When

bobbin

opener finger 1 is on

of abt. 0.3 mm between

10.0.3),

In this position, the

lug on collar 4 should be up against the stop ofopenerfinger1

10.0.1

case opener

(Fig.

10.0.1).

0.3

mm

10.1

10.2

10.3

10.4

10.5

10.6

10.7

10.8

10.9

10.0.2

Loosen

Loosen

turned

Reposition

screw3of

clamp

on

its

opener

betweenitand

Rotate

the

balance

Turn

opener

position

base

In

Push

against

In

Check

when

this

position,

collar 4 up

the

this

position,

this

finger6and

opener

stopofopener

adjustment

screw

shaft

bobbin

finger

securely

tighten

collar

4.

2 of

against

finger1on

case

wheel

until

1 untii

the

finger 1

against

right

contacts

tighten

opener

finger

screw

(see

opener

resistance.

its

base

opener

there

waiiofthe

screw

1.

3.

"Correct

11

finger 1

shaft

just

untii

5 (Fig. 10.0.2).

finger

1 isonthe

is a

thread

the

finger 1

position

iug of

2.

and

setting").

sufficiently to allow it to be

thereisa

ciearance

bobbin

clearance

left of its

of 0.3 mm

slotinthe

case

base

turn itsothat its iug is up

10.0.3

of

0.8

stroke.

between

bobbin

5 (Fig. 10.0.3).

mm

case

Timing

Ihe

bobbin

case

opener

When the needle bar is positioned 1.8 mm past bottom dead center (pin

in hole 4), opener finger 3 should be at its right point of reversal (Fig.

11.0.2).

11.0.2

.s

h"!

lA'-

. V

11.0.1

Loosen

Bring the needle bar to a point 1.8 mm past bottom

the

To

driverinthe

Turn

(Fig. 11.0.2).

in this position, tighten the

11.0.1), making

the

Puii the pin out of the hole In the bearing plate and tighten the

screw

Pull

"Correct

booth

screws

machineinthis

facilitate

opener

determining

slotofthe

eccentric

sure

lifting

eccentric.

2

also.

the

screwdriver

setting").

2 (Fig. 11.0.1).

positionbyinserting

the

exact

clampofopener

1 until

opener

accessible

the

pin in

pointofreversal

finger

3.

finger 3 Is at Its right point of reversal

screw

2 of

there is sufficient play between

outofthe

clamp

slot

and

dead

hole

4.

insertasmall

opener

opener

check

this

center

eccentric

eccentric

adjustment

and block

screw

1 (Fig.

1 and

second

(see

12

Oil

tube

In oil

distributor

ring

Correct

setting;

Oil

tube

12.0.2).

1 should be positioned In the hole of oil distributor ring 2 (Fig.

12.0.2

gnnr

12.0.1

12.1

Note:

12.2

Insert

oil

12.0.2); If

On

subcl.

have

loosened

Tighten

tube

1 Into

the

hole

necessary,

-900

screw

turn oil distributor ring 2 accordingly.

machines

the

three

screwsonthe

3 of oil regulating valve 4 (Fig. 12.0.1).

of oil distributor ring 2

the

oil

distributor

13

front

ring

cannot

sideofthe

(see

be

hook

arrow

turned

shaft

In Fig.

until you

bearing.

13

Correct

setting;

Oil

check

valve

There

should

beaclearance

of 1.0 mm

between

actuating

rod

3 of

centrifugal governor and push rod 4 of the oil check valve (Fig. 13.0.2).

13.0.2

the

13.0.1

13.1

13.2

13.3

13.4

13.5 In

13.6

13.7

13.8

13.9

Loosen

Push

Press

screw

actuating

push

Reposition

actuating

this

position,

Check

this

Soak

the

recessisat

Clean

the

Replace

legs,

the

tightening

1 of oil

check

rod 3 Into

valve

the

2 (Fig. 13.0.1).

centrifugal

rod 4 Into oil check valve 2 until a

oil

check

rod3and

tighten

adjustment

oil

sponge

the

bottom

gasket

gearcase

the

valve 2 until

push

rod

screw

(see

with oil

left

faceonthe

cover

screwsofthe

there

4 (Fig. 13.0.2).

1.

"Correct

and

and

replace

the

setting").

oil

gearcase

and

simultaneously

cover

14

tubeisplaced

and

crosswise.

governor.

Is a

It In

the

noticeable

clearance

the

gearcasesothat

on

gasketofthe

screwonthe

resistance

of 1.0 mm

top

of It.

gearcase

two machine

Is felt.

between

Its

large

cover.

14

Hook

lubrication

Correct

setting:

After

the

machine

of oil should

cutout

above

appear

the

hook

has

run at full

on a piece of

raceway.

speed

for

about

ten

paper

placed over the needle plate

seconds,

a fine

trace

14

14.1

14.2

14.3

14.4

14.5

14.6

14.7

14.8 If

14.9

Check

the

is in

line

with

Turninregulating

then

back

about

Start

the

machine

Turn

regulating

Let

the

machine

oil level

and,ifnecessary,

the

upper

screw

three

and

screw

run

Placeapieceofwhite

Let

the

oil

has

too

Is

emitted,

Check

machine

appeared

much

this

run

on

oil Is

emitted,

turnItout

adjustment

mark.

1 of oil

turns.

run it until

1 in

completely

about1minute.

paper

over

about

ten

paper

turn

"Correct

seconds.

opposite

regulating

15

the

somewhat.

(see

topupthe

Use

oil No.

regulating

the

the

needle

setting").

reservoir

280-1-120144.

valve 2asfarasit will go,

sewing

and

Then

the

screw

hook

then

out

plate

checktosee

hook

1 in a

starts

halfaturn.

cutout.

raceway.

little;orIf

until

emitting

if a

the

fine

oil level

oil.

trace

too

and

of

little oil

15

Zeroing

To

15.5

the

top

determine

mustbecarried

feed

whether

motion

the

out

first.

following

settingIscorrect,

adjustments

15.1 to

Correct

setting:

(S)

With

move

the

when

stitch

the

i

length

balance

lllil

setat"0",

wheelIsturned.

feed

driving

lever

7 (Fig. 15.0.4)

must

Q

o

not

15.0.1

Turn

15.1

15.2

15.3

15.4

15.5

regulating

Turn

out

Set

the

Its

upper

Turninregulating

downwards.

Turn

regulating

screw1outafew

stop

screw

machine

position.

screw1back

2 until a

for

screw

Its

resistance

longest

1 until

halfaturn.

16

turns.

stitch

the

Is felt.

and

move

reverse-feed

the

reverse-feed

control

begins

control

to

move

to

Not©:

For information on version N machines supplied earlier

15.0.2

m/

liiiiii

see

inside front cover.

15.6

15.7

15.8

15.9

15.10

15.11

15.12

15.13

15.0.3

Turn

the

stitch

Adjust

scale4so

Retain

the

scaieinthis

Repiace

Loosen

Adjust

wheelIsturned.

In

Check

this

and

screw.

crank6so

position

this

adjustment

length

control

that

the

screwonthe

5.

that

tighten

screw

(see

zero

position

belt

feed

"Correct

to "0"

and

loosen

markispositioned

and

tighten

guard

and

the

driving

lever7does

5.

setting").

17

screw

rear

screw

above

3.

arm

not

3.

cover.

move

15.0.4

the

tip of

when

the

the

pointer.

balance

With

the presser bar lifter raised, there should be a clearance of 7.0 mm

between

presser

foot and needle plate (Fig. 16.0.2).

16.1

Screw

freely

in Its

on the feed dog

slots.

and

the needle plate, making

sure

the feed dog moves

16.2

16.3

Screwonthe

presser

Turn

presser

needle

16.4

Loose

16.5 Swing

(Fig. 16.0.2).

16.6 Turn

eccentric

bar

16.7

Raise
presser
(Fig. 16.0.2).

16.8

16.9

16.10

16.11

16.12

Loosen

16.0.1)

Loosen

Adjust
Push

screw

Leave

bar

out

regulating

barsothat

plate.

screw21and

the

top

the

balance

(see

lifter.

the

presser

foot

screw

and

push

screw

the

presser

the

presser

20.

the

gauge

presser

lifter.

it is

push

feed

connecting

wheel

arrow

bar

from

the

22 of

the

stud

20 of

the

foot laterally until

bar

under

foot

and

lower it

screw

19 (Fig. 16.0.1) to

just

sufficienttohold

the

fulcrum

link

to bring

in Fig. 16.0.1) to

and

push

until it is

fulcrum

out.

bracket

presser

the

studofthe

bar

rear

the

presser

lifting

the

onto

the

stud

out.

outofthe

the

connecting

top

dead

7-mm-thick

positioned

lifting

bracket.

the

needleiscentered

down

as

foot

for

the

needle

platebymeansofthe

reduce

the

presser

yokeofthe

rod of

center,

and

bladeofthe

under

the

top

feed

farasit will

next

adjustment.

the

pressure

foot

feed

the

raise

gauge

presser

connecting

in its slot.

go

on

the

downonthe

driving lever

feed

lifting

the

presser

under

foot

and

the

fulcrum

link (Fig.

tighten

19

Top

feed

When

connecting

the

lobeofthe

rod

eccentric

stud

points

up {see arrow in Fig. 17.0.2)

the stitch length control Is set at "0", there should be a clearance of

15.0 mm

casting

between

{Fig.

17.0.2).

the

eyeofthe

top feed

connecting

rod

and

the

and
arm

17.0.1

Make

sure

the

gauge

Is still

length

controlissetat"0".

Loosen

Turn
In

Loosen

Setaclearanceof15.0

arm

In

Check

Leave

this

casting.

this

screw

the

eccentric

position,

screw

position,

this

the

24 of

tighten

23 of

tighten

adjustment

adjustment

the

stud

the

positioned

connecting

until its

screw24securely.

top

feed

shaft

mm

between

screw

23.

(see

"Correct

gauge

under

rod

eccentric

lobe

pointsup(see

driving

the

setting").

the

presser

under

the

crank

eyeofthe

foot.

presser

stud.

arrow

(Fig. 17.0.1).

connecting

foot

and

the

in Fig. 17.0.2).

rod

stitch

and

the

18

Feed

driving

and

connecting

ievers

Correct

setting:

All moving

18.0.2

partsofthe

18.0.1

top

feed

should

move freely

©

and

have

no play

18.1

18.2

18.3

18.4

18.5

18.6 Bring

18.7

18.8

18.9

18.10

18.11

18.12

18.13

18.14

Loosen

both

parts

Insert

Position

Loosen

ing

link 7. If

Insert

connecting

In

this

the

the

Push

Is felt,

Remove

Loosen

and.Inthis

screvr

connecting

fulcrum

sure

the

screw

the

holeofconnecting

fulcrum

position,

balance

top

feed

connecting

then

the

screw10of

screw11of

the

Swing

making

cutoutofthe

of

Turn

of

Tighten

Adjust

foot

1 of

are

properly

stud

both

vibrating

presser

5.

necessary,

stud

lever6so

tighten

lifting

tighten

gauge

vibrating

position,

driving

lever

link 3 Into

aligned.

4 In

the

parts

turn

freely. If

presserInsewing

foot

and

bend

the

that

screw

connecting

needle

9.

8 In

wheeltobring

eccentric

lever6toward

screw

5.

and

tower

fulcrum

the

presser

the

stud

vibrating

laterallysothatItdoes

tighten

2.

the

yokeofdriving

holes

of driving

necessary,

holdItthere,

directionsothat

lever6exactly

lever

bearingofconnecting

screw9engages

the

connecting

studtotop

the

presser

4.

presser.

screw

21

dead

rear

(directionoffeed)

foot

11.

lever2so

lever2and

bend

then

tighten

In line with

6.
the

flat

rod

center.

onto

the

that

connecting

driving

lever

It Is

centeredInthe

screw

the

holeofconnect

link 7

spotoffulcrum

(see

arrow

until a

needle

plate.

not

contact

the

holes

2.

1.

and

the

In Fig. 16.0.1)

resistance

the

link 3,

hole

stud

presser

of

8.

19

Correct

setting:

Vibrating

With
positioned at

between

the

presser

presser

needle

height

foot resting on

top

dead

plate

and

center,

vibrating

the

needle

there

should

presserifthe

plate

and

the

beaclearance

latter

vibrating

works

presser

of 1.3 mm

behind

needle (or of 2.0 mm if the latter works in front of the needle). (Fig.19.0.2).

the

19.0.2

19.0.1

Note: Use

19.1

19.2

19.3

19.4

19.5 In

19.6

19.7 On

19.8 Slowly

19.9 In

19.10 Check this

gauge

foot No. 61-111 639-20, if possible.

Increase

(Fig. 16.0.1).

the

Checktomake

Loosen

Turn

Fig. 19.0.2).

Turn

the

on

thick

it

screw

the

this

position,

the

balance

madiines

1.3-mm-thick

machines

bladeofthis

fastinthis

top

loosen

rests

lightlyonthe

this

the

position,

vibrating

adjustment

pressure

sure

1 in

feed

havingavibrating

on

the

presser

the

bracket

eccentric

tighten

screw1again.

wheeltobring

the

bladeofthe

where

this

foot

gauge

position.

screw

securely

presser.

2 of

gauge

(see

under

the

blade.

tighten

"Correct

presser

barbyturninginregulating

foot is still resting on

located

stud

the

presser

gauge

worksinfrontofthe

the

connecting

screw2and

behind

so

that

vibrating

which

under

vibrating

its

presser

works

the

vibrating

presser

leversothat

remove

setting").

22

the

lobe

to its

needle,

the

needle

presser

is up

behind

presser

from

the

the

bar

highest

the

push

the

vibrating

gauge

screw

plate.

(Fig. 19.0.1).

(see

arrow

point.

needle,

from

the

the

2.0-mm-

front,

and

from

push

rear;

hold

presser

under

19

in

Vibrating

With

0.6 mm

the

presser

machine

past

top

makenoperceptible

and

down.

advancing

set

for Its

dead

center

motion when

motion

longest

stit<^

(pin in hole 1),

the

and

the

the

vibrating

reverse-feed

needle

control

bar

positioned

presser

should

is moved up

20.0.1).

and

turning

the

20.0.2

block

second

20.0.1

Raise

the

presser

Loosen

Bring

the

both

screws

needle

machinebyinserting

Turn

the

top

feed

driving

Move

the

this

position,

the

29.

reverse-feed

further

tighten

pin

outofthe

Check

this

eccentricalittle

In

Pull

screw

foot

and

29 in

bar

to a

the

controlupand

until

the

adjustment

set

the

machine

the

top

feed

point

pin in

eccentricsothat

holeinthe

0.6 mm

hole

the

vibrating

accessible

(see

1.

screw

bearing

"Correct

driving

past

down

presser

for its

Its

slot

29.

longest

eccentric

top

dead

points

while

remains

plate

setting").

stitch.

(Fig.

center

toward

simultaneously

still.

and

tighten

you.

the

the

21

Correct

setting:

Vibrating

With

the

presser

machine

lifting motion

set

at stitch length "2" (or "5" on version N machines),

the vibrating presser should contact the ascending feed dog when the

latter is flush with the top

surfaceofthe

needle

plate (Fig. 21.0.2).

21.0.1

21.0.2

21.1

21.2

21.3

21.4

21.5

21.6

Turn

the

stitch

length

controlto"2"

Lower

the

presser

Bring

the

screw1whichisaccessible

Turn

presser

take-up

eccentric

contacts

surfaceofthe

In

this

position,

Check

this

adjustment

foot

stud2so

the

needle

tighten

onto

lever to its

that,

ascending

plate

screw

(see

the

needle

highest

from

below

when

feed

(Fig. 21.0.2).

1.

"Correct

24

(or

"5"onversionNmachines).

plate.

point

and,

in this position,

balance

the

latter

Is flush with

you

turn

dog

when

setting").

(Fig. 21.0.1).

the

wheel,

the

loosen

vibrating

the

top

22

Eliminating

differencesinthe

feed

stroke

iengths

Correct

setting:

With the machine
feed

strokesofthe

length

when

the

set

vibrating

balance

for its

longest

presser

wheelisturned.

stitch

and

the

and

feed

the

top feed

dog

set

at "0",

shouidbethe

the

same

22.0.1

22.1

22.2

22.3

22.4 in

22.5

Set

the

Operate

cessible

Reposition
vibrating

balance

this

position,

Check

this

machine

the

and

loosen

hinge

presser

wheel.

adjustment

for

its

reverse-feed

this

screw
and

tighten

longest

stitch

controltomake

nut.

2 In Its

the

feed

nut1on

(see

"Correct

25

and

elongated

dog

are

hinge

setting")..

set

screw

the

connecting

hole

the

same

2.

top

feedat"0".

until

length

the

rod

feed

when

hinge

strokes

nut1ac

you

turn

of

the
the

Positionofvibrating

(On machines having an extra-long vibrating presser)

presser

CorrectI-j-^^

vibrating

presser

shouldbeset

paralleltothe

feed

dog

(Fig.

23.0.2).

Tension

When

least

release

the

0.5

mm

mechanism

presser

apart

\®v^y7

bar

lifterisraised,

(Fig. 24.0.2).

both

tension

discs

should

be

at

Raise

the

Loosen

Adjust

0.5

(Fig.

In

this

When

be

fully

Check

screw33of

the

mm

24.0.2).

position,

the

activated.

this

presser

between

foot by

tension

both

tighten

presser

adjustment

meansofthe

the

tension

release

leversothat

tension

screw33securely.

foot Is

(see

lowered

"Correct

release

discs

onto

presser

lever

when

the

setting").

(Fig.

there

the

needle

bar

lifter.

24,0.1).

Is a

presser

plate,

clearance

bar

the

ofatleast

lifterisraised

tension

24.0.2

should

Thread

The

The

position of

material

check

spring

strokeofthe

the

used

and

and

thread

regulator

thread

check

spring

thread

shouldbeadjusted

regulatorisdependentonthe

/

shouldbeabt.

accordingtothe

7.0 mm (Fig. 25.0.2).

type of

appearanceofthe

thread

and

seam.

WiS*

I

25,0.1

Loosen

to

Turn
to

in
(by

necessarytoset

Check

Loosen
Push
In

allow

the

abt.

7.0

this

tightening

this

the

this

position,

both

screws34(Fig. 25,0.1) of

the

tension

tension

mm

position,

adjustment

booth

thread

I

barreltobe

barrel

(Fig.

25.0.2).

tighten

them

alternately).

the

thread

(see

screws35of

regulatorupas

tighten

both

until

both

check

"Correct

the

screws

turnedinthe

the

strokeofthe

screws

Special

spring

setting").

thread

regulator.

far

It will

35.

m

the

thread

tension

tension

34ofthe

sewing

forashorterorlonger

go.

flange.

thread

thread

operations

flange

check

tension

just

spring

flange

may

stroke.

sufficiently

amounts

evenly

make

it

26

Bobbin

winder

Correct

setting:

When the bobbin winder is

reliably;

must

The bobbin

the

when

not

bobbin

the

contact

bobbin

drive

winder

has

reached a point abt. 1.0 mm below its rim (Fig. 26.0.2).

wheel

should

engaged,

the

winder

winderisdisengaged,

1.

stop

automatically when

spindle

should be driven

however, friction wheel 3

the

thread

wound

on

26.0.2

26.0.1

26.1

26.2

26.3

26.4

26.5

26.6

26.7

26.8 If

26.9 If

26.10 If the thread piles up on

26.11

Take

out

the

drive

the

presser

both

screws

wheel1so

Raise

Loosen

Set

driven reliably

when

the

Tighten

Piace

and

machine.

The

reachedapoint

the

ting

the

not

the

Check

bobbin

both

screws

a bobbin on

engage

bobbin

the

winder

bobbin winder

screw

6 in

bobbinIstoo

full

enough,

machine

this

arm

adjustment

three

screws

bar

when

retaining

lifter

and

2.

closetofriction

the

bobbin

winderIsdisengaged.

2.

the

winder spindle,

bobbin

winder

should

abt.

stop

stop

1.0

mm

stops

too early or not at all, loosen

latch 4.

full,

push

pushItaway

one

accordingly.

(see

"Correct

the

rear

arm

cover

and

friction

but

remove

wheel3will

will

notbedriven,

Then

on

the

engage

the

wheel3that

winderIsengaged,

thread

by pushing

when

below

the

its rim.

bobbin

winder.

the machine for bobbin winding

against

thread

its spindle.

wound

screw

regulating

from

side

the

bobbin.

stud6toward

Then

tighten

the

bobbin;

screw

of the bobbin, adjust the thread guide on

setting").

29

the

start

bobbin

5 of regula

If It Is

5.

latter.

be

the

has

Knee

lever

rest

27

position

Correct

setting:

When at rest,

the

angles to the front

knee

lever

edge

connecting

of the bedplate (Fig. 27.0.2).

rod

should

be roughly at right

27.0.2

0

27.0.1

Raise

the

27.1

27.2

27.3

27.4

27.5

27.6

Push

and
Loosen

Turn
to

the

this

In
Full

the

turn

the

stop

front

position,

the

presser

it until it

knee

knee

lever

snapsinplace.

locknut

screw

2 until

edgeofthe

lock

lever

foot by

connecting

1 of

stop

the

bedplate

stop

connecting

meansofthe

rod with its

screw

2 (Fig. 27.0.1).

knee

lever

(Fig. 27.0.2).

screw

2 by

rod

out

30

presser

connecting

tightening

of its

bar

jointonthe

nut

joint.

lifter.

rod

extendsatright

1.

knee

lever

shaft

angles

Knee

lever

play

When the

positioned

1.3 mm

presser

below

between

die

foot is down on the

the

the

lifting lever

needle

plate,

and

ri

there

the

needle

should

lifting

iisi

plate and the feed dog is

beaclearance

bracket

(Fig. 28.0.2).

of

28.0.2

abt.

I

Lower

the

feed

dog

below

the

needle

plate

and

let

the

the

needle

plate.

Take

out

the

two

screws

of

the

rear

arm

Loosen

shaft.

Adjust

the

both

screws

crank

39

(Fig.

28.0.1) of

so

that

thereisa

clearance

lifting lever and the lifting bradret. (Use a

In

this

shaft

hasnoend

Pull out

Check

Pull

the

position,

the

this

knee

tighten

play.

gauge

adjustment

lever

both

and

insert

(see

connecting

screws

the

"Correct

rod

39,

knee

setting").

out

of its

cover

the

gauge

making

lever

and

crank

of

connecting

joint.

presser

remove

on

the

abt.

1.3

for this adjustment.)

sure

the

foot

down

the

cover.

vertical

vertical

mm

knee

between

knee

rod into its joint.

on

lever

the

lever

Knee

lever

stroke

limitation

When the knee lever is fully operated, the

presser

foot should be lifted

from the needle plate by a little more than 7.0 mm, and the

lifter

should

drop

by its

own

weight.

i

presser

bar

29.0.2

Insert

the

knee

lever

Loosen

Turn

stop

Raise

the

the

presser

Move

the

the

presser

Hold

the

go,

will
Remove

connecting

Let

the

check

this

locknut

screw2out

presser

foot

knee

foot

knee

then

back

the

gauge

rod

machine

adjustment

connecting

1 of

stop

screw

a few

bar

lifter,

and

lower

levertothe

must

notbelifted of

leveratthis

out

by half a

from

out

of its

joint.

down

(see

2 (Fig. 29.0.1).

turns.

place

the

presser

right until a

position

under

again,

"Correct

rod.

the

turn,

the

replace

setting").

7-mm-thid<

bar

noticeable

the

gauge.

and

and

presser

the

lifter

again.

turn

stop

lock it In

foot

knee

bladeofthe

resistance

screw

place

and

lever

2 Inasfar

with

draw

connecting

gauge

Is felt;

locknut

the

knee

under

however

as

1.
lever

rod

It

and

30

30.1

30.2

30.3

30.4

Final

worksleps

Replace

Replace

Screwonthe
Replace

30.5 Adjust the

so

that

Contents

1

Preparations
Zeroing

2
3

Bottom

4

Bottom

5

Feed

6

Centering

7

Eccentric

8

Needle

9

Eccentric

10

Positionofbobbin

11

Timing

12 Oil

13

14

15
16
17

18

19

20
21

tube

Oil

check

Hook

Zeroing
Clearance
Top

feed

Feed

driving

Vibrating

Vibrating
Vibrating

22 Eliminating

23

Positionofvibrating

24

Tension

25

Thread

26

Bobbin

27

Knee

lever

28

Knee

29

Knee

30 Final

for

the

bottom

feed

driving

feed

lifting

dog

height

the

needleinthe

hook

bar

height,

bobbin

the

bobbin

in oil

valve

lubrication

the

top
between
connecting

and

presser

presser

presser

differencesinthe

reiease

check

spring

winder

rest

lever

play 31

lever

stroke

worksteps

and

screwonthe

and

screwonthe

and

screwonthe

presser

the

fabricisfed

adjustment

feed

motion

motion

shaft

hook

case

case

case

distributor

feed

motion

presser

connecting

height

advancing
lifting

presser

mechanism

and

position

limitation

bed

slide.

face

cover.

belt

guard.

rear

arm

cover.

foot

pressure

properly

by turning in regulating

evenattop

speed.

screw

19 (Fig. 16.0.1)

motion

needle

hole

bearing

timing

and

opener

opener

hook-to-needle

shaft

bushing

clearance

opener

ring 13

foot

and

needle

plate

rod

levers

motion

motion

feed

stroke

lengths

thread

regulator

Page

1
2
4
5
6

7

8

9

10

11

12

14

15

16
18
20
21

22

23
24

25

26

27

23

29

30

32

32

dHED

n

Nr. 296-12-13 033/1178 Pf Printed in West Germany