Instructions
for Adjusting
the
Pfaff 481
and
Illustrated Guide for
Tape-Recorded
Instructions
Important
note
Never
use a
C-clamp
on the needle bar of
Pfaff
480 series
machines
because this
would
damage
Its
special
coating.
Furthermore,
all adjustments
which
are to be made at a
stitch
length
of "0" on
Model
Nmachines have to be carried out at a stitch length of 1.5
mm
and
with the reverse-feed control depressed, that means with the machine
set
for sewing back
wards
at
a
stitch
length
of
1.5
mm.
The machine can be blocked at certain positions by Inserting a 5-mm-thlck pin In one of
the holes In the bearing plate
which
Is located underneath the face cover.
When
Inserting
the
pin,
be sure to push It
In
until
Itenters the slot
In
the disc
behind
the bearing plate. For
easy Identification, the Individual holes are marked by the numbers 1 to 5 or by the appro
priate adjustment data. The abbreviations used In this connection stand for the
following:
n. o. T. =
past
the
top
of
the
needle
bar
stroke
n. u. T. =
past
the
bottom of
the
needle
bar
stroke
o. T. N. =
top
of
needle
bar
stroke
o. T. F. =
top
of
take-up
lever
stroke
Schl.-H. = 1.8 mm
past the
bottom of
the
needle
bar
stroke
The following tools, gauges and accessories are required for adjusting the Pfaff 481;
1
set
of
screwdrivers
with
blades
from
2 —
10
mm
wide
1
set
of
alien
keys
ranging
from
1.5
to 6 mm
1
set
of
spanners
from
7 to 14 mm
wide
1
22-mm
spanner
1
metal
rule
1cylindrical pin, 5 mm dia..
Order
No. 13-030341-05
1
universal
gauge.
Order
Nr.
61-111642-19
1
wrapper
with
System
134
needles
1
strip
of
white
paper,
sewing
thread
and
material
for
testing
purposes.
