PFAFF
433
Brief
Description
of
Machine
The
PFAFF
433
is o
single
needle,
lockstitch,
high
speed
sewing
machine,
organized with
link
take-up and horizontal rotary hook,
which
incorporates
many important mechanical improvements while retaining oil worthwhile
features of the service-proven
PFAFF
134.
Depending on the material to
be sewn, this
machine
is capable of operating at speeds up to
5,000
s.p.m.
which
has made the incorporation of a forced feed
lubrication
system and
o
separate
hook oiling system an absolute necessity.
Since
all manipulations for threading the
machine,
regulating the
stitch
length,
backtacking and the
like
are the same as
with
previous
models,
no
expensive retraining of operators is required.
With
its
modern
and
functional
design,
rugged
construction
and perfect
performance, the
PFAFF
433
satisfies the greatest demands
in
the
sewing
industry.
Varieiies
of
the
PFAFF
433
The
PFAFF
433
is available in the following varieties:
Model
Class
of
Work
Maximum
Lengfhof
Sfitch
(Stitchesp.Inch)
Maximum
Speed
(s.p.m.)
Needle
System
Presser
Foot
Clearance
A
Sheer, ight-
weight
fabrics
7
5,000
133
R
B
Medium-weight
fabrics
6
4,700
134R
C
Medium-heavy
fabrics
5V.
4,400
134
R
^/u"
The
above varieties differ
in
the needle bar rise, presser bar lift,
maximum
stitch
length
and take-up
motion
and are particularly well adapted to the
class of work they are intended to perform.
1.
Setting
Up
the
Machine
In
most
instances
the
PFAFF
433
is fitted for
individual
power
drive.
Head
and power table are packed separately.
The
machine
is
driven
by a '/i
HP
clutch
motor.
(Type
of
current
and
tension
optional
to suit
local
require
ments.)
Power
is transmitted
from
the motor to the
sewing
machine
by means of
a V-belt, wide
(DIN
2215).