433
PFAFF
433
G. M.
High
Speed
INSTRUCTION
PFAFF
AG, Sewing Machine
Sewer
BOOK
Factory,
KAISERSLAUTERN
r
Insfruction
Book
PFAFF
Single-Needle Flaf-Bed Loclcstifch
with
Automatic
433
Lubrication
Sewer
PFAFF
Brief
Description
The
PFAFF
433
organized with
many important mechanical improvements while retaining oil worthwhile
features of the service-proven
be sewn, this
which
has made the incorporation of a forced feed
o
separate
Since
all manipulations for threading the
length,
expensive retraining of operators is required.
With
its
machine
hook oiling system an absolute necessity.
backtacking and the
modern
performance, the
industry.
of
Machine
is o
single
needle,
link
take-up and horizontal rotary hook,
PFAFF
is capable of operating at speeds up to
like
and
functional
PFAFF
433
satisfies the greatest demandsinthe
433
lockstitch,
high
134.
Depending on the material to
machine,
are the same as
design,
rugged
speed
sewing
which
lubrication
regulating the
with
previous
construction
machine,
incorporates
5,000
s.p.m.
system and
stitch
models,
no
and perfect
sewing
Varieiies
The
PFAFF
Model
A
B
C
The
above varieties differinthe needle bar rise, presser bar lift,
stitch
of
the
433
is available in the following varieties:
ClassofWork
Sheer, ight-
weight
Medium-weight
fabrics
Medium-heavy
fabrics
length
and take-up
fabrics
PFAFF
Lengfhof
(Stitchesp.Inch)
motion
433
Maximum
7
6
5V.
Sfitch
Maximum
Speed
(s.p.m.)
5,000
4,700
4,400
Needle
System
and are particularly well adapted to the
class of work they are intended to perform.
1.
Setting
In
most
instances
the
PFAFF
and power table are packed separately.
clutch
motor.
ments.)
Power
a V-belt, wide
(Typeofcurrent
is transmitted
from
(DIN
2215).
Up
the
433
is fitted for
The
and
tension
the motor to the
Machine
individual
machineisdriven
optional
sewing
to suit
machine
133
134R
134
power
Presser
Clearance
R
R
drive.
by a '/i
local
by means of
Foot
^/u"
maximum
Head
HP
require
For
50-cycle
currenta2,800
r.p.m. motor is appropriate for
The
motor
pulley
speed
of the machine.
The below
numberofstitches which
diameters.
Balance
Wheel
dm ^
3"
2^'/64"
2^-/64"
2^V64"
2^V^4"
dm=effective
3"
3"
3"
3"
3"
can be easily exchanged to alter the
table
should be consulted for all
DiameterofMotor
dm D Order No.
3
"/u"
4"/44"
4'V3:"
4^V.4"
4"/»"
diameter;
canbeobtained
50 Cycles
'
3
4'/.4'
4^8"
'
4"/84
'
4"/3=
S'/b"
r.p.m.
60-cycle
Pulley
99089
99090
99091
99092
99093
99094
D =
total
motor
shouldbeused,
current.
with
Stitches
per
Minute
3,800
4,000
4,2C0
4,400
4,700
5,000
diameter
whilea3,400
maximum
data
regarding the maximum
motor
pulleysofdifferent
60
Cycles
DiameterofMotor
dm D OrderNo.
3^/s2"
31-/3/'
3"/84"
3"/84"
3'V.6"
4"/m"
3-/32
3"/84
3^V84
3
4'/64'
4^/8-
-/,8
'
'
'
'
Pulley
99086
99087
99088
99089
99090
99091
sewing
Stitches
per
Minute
3,800
4,000
4,300
4,600
4,800
5,000
Unpack
After
the head
taking
cautiouslyinorder to
off
the
lidofthe
box,
avoid
unscrew
damage to the
the
wood
screws
machine.
which
hold
the cushioned wooden blocks that support the machine head in the box.
Cautiously
pads on the
on the
the
The
run
The amount of oil
machine in o can. The oil used in the
viscosityof110S/70»F
factory for the
reservoir take out screw d (Photo
wait
the
lift out the head,
machine
motor
pulley.
machine
whileinthis
table.Tofacilitate the
pulley,
Adjusting
is dispatched
condition.
2. Filling
which
lubricationofhigh
wipe
off the dust and
mounting
slightly
(US)or95R/70°F
tilt back the
the
V-belt
without
the
oilInthe reservoirs and must not be
machine
tensionisinstructedinSection
Oil
Reservoirs
is needed for the first two
PFAFF
(Br.)
speed
1),
which
sewing
fill
in about one pint
mount
of the
it on the rubber
V-belt,
and
pull
fillings
comes with the
slip
the belt onto
433 is a spindle oil with o
has
proved
machines.Tofill
(.5I)of oil obd
a few minutes until it has drained down into the reservoir. Then
oil
level
gauge to see if the
amountofoil
filled
up is
sufficient.
the belt
very
the
20.
satis
main
-check
The
level should be between the "max." and "min." marks when the machine
is inoperative.
Never
remove
the top cover to
fillupoil
there.
oil
Experience
has
shown
fhof
It is of advantage to
lubricate
the
hook
sepero-
tely. The reservoir which supplies oil to the rotary hook is located under
top
cover b on the machine arm. (Photo 1).
Photo
1
Take
out
(Photo 21).
screwcend
fill
about
5 cu. In.ofoil Into
the
hook
oil
reservoir
As long as the red tipofthe float spindle is visible In oil level tube S
(Photo
21)
while
the
machineisIn
operation, there Is enough oil in the
reservoir. If, however, the red tip Is flush with the top surface of the oil
sealer nut, oil should be filled up.
mm—V
Photo
2
3.
It is
recommended
to
Testing
test-run
the
the
machine
Machine
with
needle
thread
and
bobbin
case removed. Before you plug the power lead into the electric circuit,
niake sure that the voltage of the circuit is the same as that indicated on
the
rating
pulley
will
turn
directionasthis is
The direction of
the belt. If the
toward
rotationofthe
belt
the motor and tip on the treodle.
can
tell In which direction it will
simply
exchange the two wires on the motor terminals.
Start the machine by pressing down the treadle.
plate of your
Never run Ihe
presser
For
the regulation of the
machine
foot
or raised the presser
sewing
you.
boundtocause
has
Never
been
mounted,
unless
you have placed a piece of fabric
oil
flow
machine,
must
troubleinthe
motor
can
From
rotate.
bar.
to the
and ascertain that the
the
pulley
turninthe opposite
lubrication
best
be checked
hold the
balance
wheel,
system.
before
machine
mounting
switch on
the jerk of the balance wheel you
If it
rotates
hook
see
in the
Section
wrong
23.
direction,
under
the
SYSTEM
Photo
3
4.
Taking
Raise fhe take-up lever to its highest position, lift the latch of the bobbin
Out
fhe
Bobbin
Case
case with thumb and forefinger of your left hand and pull the bobbin case
out of the machine as shown in photo 3.
As long as you hold the latch open, the bobbin cannot fall out.
5.
Winding
For this operation the power-driven bobbin winder is used which features
a
numberofimprovements. (Photo 4).
The
bobbin winder
lubrication of the winder completely superfluous.
spindle
runs in a sintered steel
fhe
Bobbin
bushing
which
makes
Photo
4
In
order
of the bobbin winder pulley
to reduce
somewhot
the high
has
speed
been Increased to
of the machine, the
diameter
The V-groove in the rim of the pulley has been designed with an obtuse-
angled profile so that the V-belt
even
o round
belt
may
be used.
will
fit into it perfectly and, if necessary,
The bobbin winder is quietly stopped by means of an adjustable leather
pad.
A windshield which is mounted on the winder
being dragged over
toward
the belt by air suction.
base
prevents the
thread
from
Fasten the bobbin winder to the table with Its driving pulley far enough
from
the
is
disengaged.
machine
beltsothat
it will
not
touch
the
belt
when
the
winder
Pass the thread from spool 1 through thread guide 2, clockwise around and
between tension discs 3, and to the bobbin.
Pull
the thread through the
slot in the bobbin, from the inside. Place the bobbin on spindle 5 and hold
the
endofthe
the winder by pressing down engaging lever 6.
thread
until
the
winder
has
madeafew
When
revoilutions.
sufficient thread has
Start
been wound on the bobbin, the winder will stop automatically. The amount
of
thread
to be
wound
Insert a full bobbin into the bobbin
top from
1he
left toward the
on the
bobbinisregulatedbyscrew
Turn it to the right
endtothe
6.
Threading
left
right,
for
more
thread;
for
less
thread.
ihe
Bobbin
casesothat
Case
the
as shown in photo 5.
thread
7.
draws
on the
Photo
5
Pull
the thread into slot 1 end draw it under the
eye2.Place
the
bobbin
case
with
the
bobbin
tension
on
the
spring into delivery
center
studinthe
bobbin case base and moke sure that the end of the latch points toward
you. Press the bobbin case all the wayinuntilitclicks
This
is very important as, otherwise, needle or bobbin case breakage may
result.
7.
To
thread the
clear
view
of the operator,
PFAFF
Threading
433
is not
similar
difficult
to the
the
Needle
at all
PFAFF
info
position audibly.
since
the thread passes in
133
and
134.
(Photo
6).
Photo
6
Pass
the
thread
from the
thread
unwinder to
thread
guide pin 1
and
through
both holes in order to keep the thread from whippingathigh speed.Bythe
same token, pass it through all three holes in thread retainer 2 as shown
in photo 6, then between tension discs 3, through thread check spring 4,
under thread regulator 5, through guide 6, up and from right to left through
eyelet 7 in the take-up lever, down and through thread guides 8 and 9, and
from left to right through need'le eye 10.
8.
Drawing
Up
fhe
Bobbin
Thread
Hold the
endofthe
needle
thread
and
turn the
balance
wheel
toward
you
until the needle moves down and up again, thus catching the bobbin thread
which
will
threads
come up through the needle holeina loop. (Photo 7). Lay both
back under the
presser
foot.
Moke sure that fhe take-up lever is in Its highest position olwoys when
beginningorendingaseam.
Failure to observe this precaution may cause thread
of the needle. In this
beginning to
sew.
case,
it is
not
necessary
jamming
to hold the
or unthreading
threads
when
4^
Photo
7
9. Regulating the Thread Tensions
To
obtain o perfect seam, observe the
The
needle
and
as
shown
bobbin
in Fig. 8.
Turn tension nut M (Photo6}clockwise for a
counter-clockwise
threads
foralooser
shouldbelockedinthe
tension.
following
hints:
tijhter
centerofthe
material
upper tension, and
The lower tension is
the
small
tension,orcounter-clockwise
The tension should be
screw
and should be such that the stitches
seam pucker,
goods.
The grade of thread used plays an important
seamonany
Sheer fabrics require a thin
unsuitable for
In
regulating the thread tensions you have to have a little experience before
you can lell
tension
material.
which
maybetoo
regulated
driver
and
turn
foraweaker
regulatedinaccordance
and
that
they will lie in a straight ine on the surface of the
and
almost
any
tension
fabric
neecis
tight or the lower tension
by means of tens
this
screw
will
be tightly set, yet without causing
soft
thread. Stiff and resistant
becauseoftheir low resilience.
adjustment.
on
eithe
tensia
screw
' clockwise for a
n.
with the
part
in obtaining a perfect
In
Fig. 10
too
loose.
material
either
z (Fig. 9).
to be
threads
the
Take
tighter
sewn
are
upper
10
In
Fig.11Ihe
tension
too
tension
tight.
Fig. 10
Fig. 11
on the needle thread may be too weak or the lower
The operator
will
have to decide in every individual case if either the upper
or lower tension requires adjustment, porticularly when the thread fornts
small knots or kinks on top
The upper tension can be adjusted only when the presser
because
it will
automatically
10. Regulating
it greatly depends on the amount of pressure
presser foot whether the work
will
be staggering stitches in the seam and feed markings on ihe underside
of
the
fabric.
Turning
pressure for heavier materials;
for lightweight fabrics.
When stitching delicate and
piece of tissue paper under the material
and prevent puckering and can be readily pulled
The PFAFF 433
o
fabrics use short System 133 R needles while Model B and C machines
require
diameter
pressure regulating screw V
11.
uses
shank
diameter
System
of is imprinted on the needle
standard
of
134
R needles
and
release
the
flimsy
Choosing
round-shank
ModelAmachines
bottom
of the fabric.
bar
the tension
Pressure
will
feed smoothly and evenly or if there
(Photo
turning
it outwardly
when
raised.
on the Material
which
is exerted by the
20)
inwardly
will
will
ease the pressure
fabrics, it is recommended to place a
which
will
protect its underside
away
after
the sewing.
the
which
Proper
are
needles
which
longer.
wrapper.
Needle
witharound
are
intended
The
standard
is lowered
increase tlie
point
atid
for
sheer
shank
11
Loading...