Pfaff 131 User manual

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-
Useful
hints!
The
oil
for
the
sewing machine
ought
to
be
purchased
from
the shop
where
the
machine
was
bought.
Ask ex-
In
fr
ti
ns
pressly
for genuine
PFAFF
sewing
machine
oil
which
is
sold
both
in
bottles
and
tins,
and be sure
that
they are
sealed
with
the
red P Trade
Mark.
Oil
of
other
quality
or
using
the
-
clogs often
the mechanism.
Small
High
Speed
Sewing
Machine
When
in
need
of
an
oil can
buy only
a
PFAFF
oil
can
which,
as proof
of
its
genuineness,
bears
the
name
PFAFF
131
PFAFF
stamped
on
it.
The•
PFAFF
oil
cans
are
very
durable
and do
not
rust.
-
Apart
from
the shuttle,
the
needles
have
the
greatest
To
acquire
a
thoroug’ oraclice
in
the
handIng
or
the
influence
on the
formation of
the
stitches.
It
is,
therefore,
machine, begin
by
operating
the treadle.
Do
not
get any
in
your own interest
to
use
only Pfaff
needles
system
130.
oarts
out
of
order,
and
do
nor
work
at
random.
SincD
The
genuine PFAFF
needles
bear
the
name
PFAFF
the machines
are
supplied
with
the fly-wheel
discon
stamped
on
the shank.
They
are
sold
only
in
original
nected,
only
the
hand wheel
is
rotating
when
working
packing
by
authorized
PFAFF
agents.
Only these
PFAFF
the treadle,
the machine
irself
does
nor
move.
Take
care
needles,
manufactured
under
our
control,
are
of
unsur-
that
when treadling,
the
hand wheel
as
well
as
the
stand
passed
quality
and offer
every
guarantee
of
irreproach
wheel
are moving
to-Nard
the seamstress.
Exercise
able
sewing
to
the
owners
of
PFAFF
machines.
Packets
slow
and quick
treadling
ii
uniform
but not
jerking
mo
with the inscription
“Needles
for PFAFF
machines”
do
vements.
not
contain
genuine
PFAFF
needles.
If
the
shuttle
has
to
be
replaced,
take
care buying
a
.
-
new
one which
bears
the
name
PFAFF
stamped
on it
:
To
disconnect
and
to
tighten
the balance
wheel
and ask
for
the engraved
number
below
that
name.
I
When
winding
the
bobbin, disconnect
the
balance
The
PFAFF
High
Speed
Sewing
Machine 131
is
favour-
wheel,
when
sewing
tighten
it
again.
To
tighten
it,
fold
ably
suited
for
l
.
/
N
the wheel
with
your
right hand
.
Disconnecting
Darning
and
Embroidermg
-
by
using
the attachments,
embroidery
ring,
auxiliary
‘
is
achieved
b/ unscrewing
the
nut
in the
opposite
needle
plate,
darning
apparatus,
and darner
for stock-
.
.
ings.
Buying
these
attachments
be
sure
they
bear
the
direction
.
Tighten
the
balance
wheel
and
exer
name
PFAFF
as proof of
their genuineness.
..
cisc
the
treadle operation
but
this
time with
a
piece
of
-
work
inserted
in
the
machine.

cated
in
fig.
3,
through
slot
X,
and
while
holding
bobbin,
draw
it
beneath
the clamp
so
that
it
will
protrude
an
inch
or
so
from
opening
Y.
This
done,
place
bobbin
case
with
bobbin
on
the
pin
of
the
lower
case,
the
needle
bar
being
raised
and
the
latch
opened,
and
finally
release
latch.
Pressure
with
the
thumb
suffices
to
have
the
bobbin
case
being
caught
with
an
audible
sound.
This
is
important
as
otherwise
hook
and
bobbin
case
ore
likely
to
get damaged.
For
thread
ing
the
upper
thread
proceed
in
accordance
to
fig.
4,
as
follows:
Guide
the
thread
from
the
spool
under
hook
1
and
through
top
tension
2
between
the
two
tension
discs
3,
then
over
the
thread
controller
spring
4,
under
the
regulating
hook
5,
through
eyelet
6
and
then,
from right
to
left, through
the
hole
of
the
take-up
lever
7,
which
must be
raised
to its
highest
point,
and
from
there
through
eyelet
8,
the
needle
bar
eyelet
9, and
then
thread
the
needle
from
left
to right
through
hole
1O
4
7
:1
e!
2
1
c1
ji
Fig.
4
5

To
draw
up
the
under thread
and
to
commence
sewing
Hold
the
end
of
the
upper
thread
and
turn
the
balance
wheel
with
your
hand
in
the
direction
of the
arrow,
until
the
needle
goes
down
once
and
up
again.
The
under
thread
will
then
come
up
in
the
shape
of aloop
through
the
needle
hole
and
is
to
be
drawn
up
completely,
by
passing
a
screw
driver
or a
pair
of
scissors
between
the
presser
foot
and
the
needle
plate
in
the
direction
of
the
forward
feeding.
Now
place
the
upper
thread
under
the
presser
foot
by
the
side
of the
under
thread.
Then
the
presser
foot
is
lowered
ond
the
thread
ends
are
held
behind
the presser
foot,
until
some
stitches
ore
formed.
Do
not
forget
this
to
prevent
the
upper
thread
from
being
jammed
in
the shuttle
race.
To
protect
the
press.er
foot
ond
the
feed
dog,
never
run
the
machine
without
having
a
piece
of
fabric
inserted.
Regulation
of
the
tension
of
the
upper
thread
is
effected
with
the
aid
of tension
nut M
(fig.
4).
Giving
this
screw
a
few
turns
,
the
tension
will be
tighter,
and
turned
in
the
opposite
direction
looser.
If
machine
is
set
for
right
tension
and a
certain
grade
of
thread,
note
the proper
figure
on
the
bell
that
is
attached
behind the
nut,
in
its
position
to
the
divisions,
stamped
on
the
disconnecting sleeve
in
the
bell.
After
a
certain
practice
is
obtained,
one can
get
along
without
these
figures
and
divisions,
of
course.
If
the
upper
tension
is
too
loose,
then the
shuttle
thread
will
draw
down
the upper
thread,
thus
forming
little
knots
or
loops,
as
shown
in
fig.
5.
6
if
the
upper
tension
is
too
tight,
then
the
under
thread
will
be
drawn
up,
as
shown
in
fig.
6.
Fig.
7
shaws
the
locking
of
both
threads
in
the
centre
of the
material
as
result
of the
right
regulation of
the
tens
ion.
Raising
the
presser
foot,
the tension
is
released
auto
matically,
permitting
easy
removal of
the
material
from
underneath
the
presser
foot
which
should
be
done
in
the
direction
of the
forward
feeding,
as
otherwise
the
needle
is
likely
to
break
or
be
bent
which
causes
skipping
of
stitches
and
thread
breaking.
Upper
tension
too
loose
or
under
tension
too
tight
Fig.
6
Upper
tension
too
tight
or
under
tension
too
loose
Fig.
7
Both
tensions
equal

To
regulate
the
tension
of
the
under
thread
The
bobbin
case
is
taken
out
of
the
machine
then, with
the
screw-driver,
tighten
the
tension
screw
Z
if
the
tension
is
too loose,
or
,
if
the
tension
is
too
tight (see
fig.
3).
To
regulate
the
tension
of
the
thread
controller
spring
For
embroidery
work
or
when
darning
it
may
often
be
found
convenient
to
loosen
somewhat
the
tension
of the
thread
controller
spring.
When
working
thick
or
hard
materials
a
tighter
tension
is
wanted,
By
simply
turning
the
lever
of the
tension
bushing,
the
desired
tension
of
the
thread
controller
spring
is
being
adjusted
(fig.
4).
a
is
the
position
for
darning
and
embroidery
work
b
is
the
standard
position
for sewing
c
is
the
position for
sewing
thick
or
hard
materials.
The direction
for turning
the
lever
is
designated
by
the
following
marks:
l=’loose
(light),
f=fast
(tight).
The
Needle
Use
Pfaff
needles
system
130
in
sizes
appropriate
to
the
thickness
of
thread
and
material
used,
consulting
table
on
following
page.
In
order
to
change
the
needle, raise
the
needle
bar
to
its
highest point,
loosen
the
needle
clamp
screw
some
what
and
take
out
the
needle
with your
left
hand, When
inserting
a
needle,
be
careful
that
the
flat
side
of
the
shank
will
fit
into
the
groove
of
the
needle
bar
and
that
the
long
groove
is
pointing
to
the left.
Push
needle
as
far
up
as
possible,
then
tighten
the
needle
clamp
again.
8
No.
of
Sice of
Cotton
I
Class
of Work
Needles)
Linen
or
Silk
Cotton
150—100
Very
thin fabrics
70
Schappe
silk
150 -1003
(cambric,
tulle,
muslin)
t7)
Real
silk
150—100/3
fine
linen
(000/001
Cotton
100—80
Very fine
silk goods,
Schappe
silk
100/3
fine linen,
underwear,
Real
silk
100’3 (0)
fine
calicoes
etc.
Cotton
80—60
Thick
underwear,
)9
Schappe
silk
80/3
light knitted
goods
Real
silk
80/3
(B)
100
Cotton
60—40
Ladies’
clothings,
(10>
Schappe
silk
70/3
hems umbrellas
Real
silk
70/3
IC)
Cotton
40—30
110
Schappe
silk
60/3
Gents’
clothings,
(11)
ReaLsilk
60/3.
(D) corsets
etc.
Linen
90—80
Cotton
30—24
I
(121
Real
silk
50/3 (E)
etc.
120
Schappe
silk
50/3
Cloths,
winter
clothing
Linen
80—50
Stitch
regulation:
Forward and
backward
sewing
The regulation of
the
length
of
the stitches
is
done
by
means
of screw
M
(fig.
1). M
pointing
on
0,
the feeder
does
not move
at
all. Moving
screw
M
upward,
the
machine
is
sewing
forward,
and
moving
it
downward,
beyond
0,
it
is
sewing
backward.
Switching
to
backward
stitches
and vice
versa,
the
same
length
of stitches
is
retained.
Changing
the
length
of the
stitches
can also
be
accomplished
whilst sewing.
When
embroidering and
darning, choose
the
0-position,
using
the backward
stitch
only
for
tying
forward
seams.
9

To
regulate
the
pressure
of
the presser foot
OC
0- 0-
= D
C”
0-
00
0000
00-0
CD 0- O
D
0-
,
CT
,,
=0
rr,
0
0
0
00
a
8g-
,-<
p
‘iI
7’•
0
70
OCn0
0_0
0(0
0Q
D
0
(0
CD
C”OD
(0
(00
0
C”
(0
0
(5(0
0
CM
Q
CT
0
0
=
0
-,, 0
0
Q
0-
— E_co
0
Co
=<
-h
C’,
0-
CD
To
increase
the
pressure
of the
sewing
foot and
to
decrease it, respectively,
the
bushing
V —fig.
4—
is
screwed
in
and/or
out.
The
feeding
of
the
machine
is
done
automatically. Be
sure
to
guide
the
material
gently
with
both
your
hands.
Do
not push
or
pull
to
avoid
break
ing
of the
needle.
The Hook
The
hook
of
the
Pfaff
131
consists
of
th3 hook
body
C,
the
hook
bow
B,
the
bobbin
case
base
U
and
the
bobbin
case
cap
0,
(fig.
8).
The
hook
bow
is
secured
on
the
body
by
means
of
screws
I, II,
and
III.
Three
screws
also
serve
to
attach
the
guiding
plate
M to
the hook
body.
Fig.
8
Fig.
9
10
11

Taking the
hook
a
piece
for cleaning
Directions
To clean
the
hook
it
is
necessary
to
tip
the
machine
back,
then remove
the upper
case
and take
off the hook
bow
by
unscrewing
the
three
screws
S
1,
S
2, and
S 3.
Then,
by
turning
the
balance
wheel,
bring the hook
in
correlation
with
the under bobbin
case to the
effect
that
the lower
edge
of
screw
hole
S 1
and the lower
edge
of
shoulder
D are
in
alignment
(fig. 9).
Then with thumb
and
index
finger
of
your left hand, seize the under
bobbin
case
at
the
central
stud Z
and
lift out the
hook
body.
Thus,
the
groove R
of the under
bobbin case
withdraws
automatically
from nose
P of
the bobbin
case
holder.
After thoroughly
cleaning the
individual
parts
from
fluff,
replace them
in reverse order.
Begin by
turning
the
balance
wheel
so
that hook
and under bobbin
case
assume the
position
observed
in fig.
9, then, push
groove
R of the under
bobbin case
holder
and
insert the
under
bobbin
case in the
body
of
the
hook. This
done, replace
the hook
bow,
fastening
it with
screws
S
1,
S
2, and
S
3
and
finally, insert
the
upper bobbin
case
0 (fig.
8)
together
with the bobbin.
for using
some attachments
of the
high
speed
sewing
machine PFAFF
131
For all ordinary
sewing work
use the
presser foot
as
shown
in fig. 4 with
which
the
machine is
supplied.
For stitching close
along
the
edge
use the
Edge
stitcher
Fig.
10
Edge
stitcher with
ruler
The ruler
being adjustable,
the distance
between
the
seam
and the edge
of the
cloth may
be chosen
at
will.
(fig.
10).
The
hemmer
which
in combination
with the ruler
is
particularly
suitable
for producing
narrow
edges.
12
When
starting
a hem,
fold
a
length
of
of an
inch
of the edge
of the material
to the
width of hem
and
guide
it
evenly into
the curl
of the
hemmer,
as shown
in fig.
11.
3

Fig.
11
The
hemmer
The
feller
When
felling,
the
two pieces
of cloth should
be
laid
one
upon
the
other,
with the
edge
of the
under
piece
about
1/6
inch
further
to
the right thon
the
upper
piece.
Then
guide
the
two pieces
into
the
feller
in
the
some
woy
as
described
with
the hemmer,
by
which
the
edge
of the
under
piece
is folded
and
sewn
on
the
upper
piece.
Now
open
the
two pieces
of
cloth
as
shown
in fig.
12,
flatten
the
seam
somewhat
and
guide
the
edge,
which
has been formed, again
through
the
feller
in
order
to
fell
it.
The
suspension
of
the
presser
bar
for
the
purposes
of embroidering
and
darning
Unscrew
the sewing
foot,
place
the
bent
end
of hook
a
around
the
head
of
screw
b
and
insert
the
other
end
into
hole
c on
the
face
plate,
heavening
the
presser
bar
a
little with your
hand.
Then release
the
presser
bar
lever
to reestablish
the
tension
of the
upper
thread
(fig. 13).
____j
Fig. 12
The
feller
14
F
k
Fig.
13
15

To
apply
the
auxiliary
sewing
plate
USEFUL HINTS!
L
r
sewinri
“late
with
its
Open
slide
a,
insert
tue
auxi
ja
‘i
that
the
1. When aarrnng
place stitch
reguang srew on pont c
rear
notch
into
recess
bof
the
neecule
poe,
so
don
But it
is
quite better
to use the supplied
feed cove
two angular
parts
,d
will
close
the
ne
e
hes
c
plate (fig.
14>
to
ovoid cutting of the
soft darning yaru
line g ...
. Close
slide
a
oud
be
sur
t,,no
c
... by
the teeth
of the feed dog.
come
to
lie
beneath
the slide
(See
ig.
To assure
good darning work
the size of needl
must
match the thickness of
thread used.
Therefore
we recommend
Thread No. 30
.— 40
in
connection with needle No. 80 (8
Thread No.
50 — 60 in
connection with needle No. 70 (7
Thread No.
80—100 in
connection with needle No. 60 (6
Darning threads
being twined lighter
than sewinç
threads,
both upper- and under
tension must be
essen
tially loosened
when darning.
2. For
sewing use
lustreless thread—not glazed cotton
Lustreless thread is
as strong as glazed
cotton anc
moreover is
smoother and more flexible,
thus
pro
ducing
a
better drawn-in
stitch, which is
importani
when the fabric -is
washed.
Skipping
of stitches may be
caused:
1. Needle
not set
according to
instructions.
2. If other
than Pfaff
Needles System 130
are
used.
This needle is
produced meticulously
according to
our
prescriptions and
examined.
3. Needle
being bent or
thread
used too fine.
Fig.
14
Thread
breaking may be caused:
1. For
the
above three
reasons.
2. The tension being too
loose.
3. Using
bad or knotty
thread. -
16
17

Ugly
stitches may
be
caused
1
The
tension
too
light
or
too
loose
The
under
tension
should
always
be
a
little
looser
than
the
upper
tension
2
Thickness
of
material
not
corresponding
to
size
of
needle
and
thread
The
under
thread
should
rather
be
a
little
finer
than
the
upper
thread
3
Fluff
having
accumulated
between
the
tension
discs
or
under
the
tension
spring
of
the
bobbin
case
Heavy
working
of the
machine
may
be
causd:
1.
The
belt
having
become too
long
by
long
use
and
therefore
does nat
pull
anymore,
in
which
case.
shorten
it.
2.
Belt
being
too
tight.
Therefore
it
should
never
be
shortened too
much.
3.
Shuttle
race
being
obstructed
by fluff
caused
by
inadvertance.
To
oil
and
clean the
Machine
All
nickel
plated
and polished
parts
are
treated
with
rust
proof
grease
which
should
be
rubbed
off
with
a
clean
rag.
Thereupon
apply
a
little
kerosene
(paraffin)
at
all
points
marked
in
figures
15
and
16
After
having
raised
the
presser
foot
run
the
machine for
a
short
time
without
thread
wipe
off
the
dripping
kerosene
and
apply
a
drop
of
Pfaff
oil
at
all
points
where
there
is
friction.
Make
it
a
habit
to clean
and
oil
the
machine
from time
to
time,
especially
when
using
it
permanently
and
after
a
prolonged
standstill.
Very
important’
Rinse
the
shuttle
race
thoroughly
with
kerosene,
and
thereafter
apply
some sewing machine
oil,
especially
when
using
the
machine
for
the
first
time
and
after
a
prolonged
standstill.
Keep
the
oil
can clean!
The
needle
plate
should
be
taken
off
frequently
and
the
lint
removed
from
its
underside and
from
the
feed
dog.
18
Fig.
15

The
Treadle
Stand
with
ball-bearing
pitman
requires
but
little
attendance.
It
will
be sufficient
to
apply
a
drop
of
oil now
and
then
to
the crank points
a
and
b, to the
treadle
stud
c
and the
treadle
bearings
d
(fig.
18).
The
ball-bearing
of the
pit
man
is filled
at
the factory
with
consistent
grease,
thus
render
ing
lubrication
unnecessary
for
a
long
time.
Should
it become
necessary later
on
to
lubricate
the
ball-bearing
of the
pitman,
use
only
consistent grease,
since
the
oil
is
flung
out when
sewing
at
high
speed,
thus
soil
ing
your
dress.
Should
the
treadle
work
noisily
after
a
certain
time of
use,
this
is
due
to
play
having
arisen
in
the
bearings.
Tighten the
bearing
e
with
the
special
wrench
sup
plied
with
the
machine,
and
the
screw
f
of
the
treadle
stud
bearing
(fig.
17).
Be
careful
that
the
treadle
bearings
do
not
become
loose.
If
necessary,
loosen
one
of
the
two
screws
d
and
press
the
centre
pin
firmly
to the
treadle.
Then
tighten
the
fastening
screw
again.
The
crank
points
can also
be
adjusted
by
tightening the
crank
bearing
a.
Fig.
17
I
I
f
Fig.
16
20
.
21