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

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

the

bobbin

(On

needle

the

subcl.

case

bar

feed

needle

opener.

dog

-900

stroke.

height.

machines,

bar

This

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

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

(see

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

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

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

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

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

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

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.

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

Turn

turn

(Fig. 6.0.2).

In

Pull

tighten

Replace Loosen

the

Check

screw7of

screw

the

this

position,

out

screw

screw7again

needle

this

screw6with

needle

screw

8 of

balance

eccentric

the

eccentric

7.

bar

frameisnot

adjustment

6 in

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

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

of 0.4

hook

needle.

clearance

cutofthe

that

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