UnionSpecial Picoetta G79000 Series Instruction Manual
TT':--
CATALOG
No.
60
Instructions
for
Installing,
Operating
and
Adjusting
with
List
of
Parts
Picoetta
Machines
Class
G79000
UNION
SPECIAL
MACHINE
COMPANY
General
Olllce
and
Factory:
400
North
Franklin
Street
CHICAGO.
ILLINOIS
a!
BRANCHES
AND
SERVICE
STATIONS,
UNITED
STATES
IJostoii.
Muss.
T^iin,
Mass.
Havcrhili.
Mass.
New
York.
N.
Y.
Utiea.
N.
Y.
Rochester,
X.
Y.
.Johnson
City.
N.
Y.
Buffalo,
N.
Y.
Troy.
N.
Y.
Philadelphia,
Pa.
Reading,
Pa.
Cincinnati,
Ohio
Cleveland,
Ohio
Toledo,
Ohio
Minneapolis,
Miun.
St.
Louis,
Mo.
Kansas
City,
Mo.
I,OS
Angeles,
Cal.
San
Francisco.
Cal.
'
t
SERVICE
REPRESENTATIVES,
UNITED
STATES
A
•
■
,jl
Newark,
N.
J.
Ualtiniuro,
Md.
Detroit,
Mich.
Knoxville,
Tenn.
-Atlanta,
Ga.
Milwaukee,
Wis.
Dallas.
Texas
New
Orleans,
La.
Seattle,
Wash.
BRANCHES—FOREIGN
Union
Special
Machine
Corporation
of
America.
Union
Special
Machine
Company
of
Canada,
Ltd.
Union
Special
Machine
Company
of
Catiada,
Ltd.
Union
Special
Machine
Corporation
of
America.
Union
Special
Machine
Corporation
of
America.
Union
Special
Macliine
Coi^oration
of
America.
Compagnic
des
Machines
U
nion
Special
do
France.
Cotnpagnie
dcs
Machines
Union
Special
de
France.
Belgium,
Brussels
Canada,
Toronto
Canada,
Montreal
Denmark.
Copenhagen
England
Leicester
England.
London
France,
Paris
France,
Lyons
"i
UNION
SPECIAL
MASCHINENFABRIK,
G.
m.
b.
H.
Genera!
Office
and
Factory:
STUTTGART.
GERMANY
BRANCHES
AND
SERVICE
STATIONS,
GERMANY
Berlin
Chemnitz
Koln
Ebingcn
Erfurt
Franhfurt
am
Main
Foreign
Distributors
and
Service
Stations
are
Found
in:
Argentine
Republic
England
New
Zealand
Buenos
Aires
Leeds
Aurklniid
Austria
Manchester
Christchurch
Vienna
Norwich
Wellington
Australia
French
Indo
China
Pbillpaine
Islanda
Melbourne
Saigon
Manila
Sydney
Hawaiian
Islands
Portugal
Honolulu
Oporto
Brazil
India
Scotland
Rio
de
Janeiro
Bombay
Glasgow
Santos
Calcutta
Dundee
Sao
Paulo
Ireland
Slam
China
Belfast
Bangkok
Hong
Kong
Italy
South
Africa
Shanghai
Milan
Jolianncsburg
Cuba
Japan
Durban
Havana
Osaka
Capetown
Santiago
Tokyo
Port
Elizabeth
Dutch
East
Indies
Mauritius
Spain
Soerabaya,
Java
Port
Louis
Barcelona
Ecuador
Mexico
Uruguay
Guayaquil
Mexico
City
Montevideo
Copyright.
102S,
Union
Special
Machine
Co..
Printed
in
U.
S.
A.
From the library of: Superior Sewing Machine & Supply LLC
Installation
of
Picoetta
Machine
From the library of: Superior Sewing Machine & Supply LLC
CLASS
G79000—PICOETTA
MACHINES
Style
G79000
A
Style
G79000B
Style
G79000
C
Style
G79000
D
Style
G79000
E
For
joining
two
pieces
of
fabric;
fagotting
effect,
makes
3
stitches
to
right,
3
stitches
to
left
and
repeats,
plain
feed
both
sides
of
needle.
For
edging
woven
fabrics;
handkerchiefs,
dresses,
lingerie
and
similar
articles,
pointed
lace
effect,
makes
3
stitches
to
right,
3
stitches
to
left
and
repeats,
plain
feed
to
left
of
needle.
For
edging
woven
fabrics;
handkerchiefs,
dresses,
lingerie
and
similar
articles,
arched
lace
effect,
makes
4
stitches
to
right,
4
stitches
to
left
and
repeats,
plain
feed
to
left
of
needle.
For
edging
knitted
and
other
elastic
fabrics;
arched
lace
effect,
makes
4
stitches
to
right,
A
stitches
to
left
and
repeats,
differential
feed
to
left
of
needle.
For
edging
knitted
and
other
elastic
fabrics;
pointed
lace
effect,
makes
3
stitches
to
right,
3
stitches
to
left
and
repeats,
differential
feed
to
left
of
needle.
PRODUCTIONS
When
picoetta
edging
ladies'
collars,
cuffs,
brassieres,
lingerie
and
similar
articles,
the
machines
will
complete
50
to
55
yards
of
lineal
stitching
per
hour.
A
production
of
3
dozen
handkerchiefs
per
hour
is
easily
obtained.
INSTALLING
READY
TO
OPERATE
Before
shipment,
each
machine
is
thoroughly
run
in,
accurately
adjusted,
tested
and
carefully
inspected.
This
is
evidenced
by
the
test
sample
left
in
the
machine.
Packed
by
skilled
hands,
they
arrive
at
their
destina
tion
ready
for
service.
The
illustration
on
page
2
shows
the
general
plan
of
installa
tion.
From the library of: Superior Sewing Machine & Supply LLC
Style
G79000
A
Style
G79000
B
Style
G79000
E
Style
G79000
C
Style
G79000
D
U'
• •
-
'J
5*^,
i
r
f
I'i--'jif
4
]
'
slEti
if
i
Photographic
reproductions
of
stitching
accomplished
on
Picoetta
Machines
Class
G79000
From the library of: Superior Sewing Machine & Supply LLC
Installing
(Cont'd)
TREADLES
The
transmitter
treadle
is
so
located
that
its
cen
ter
is
directly
under
the
needle.
The
treadle
for
lifting
the
presser
foot
is
located
to
the
right
of
the
transmitter
treadle.
PULLEYS
The
split
pulleys
are
generally
bored
for
a
ItVinch
line
shaft,
and
are
furnished
in
the
following
sizes:
6,
8,
9,
10.
11,12,
13,
14
and
15
inches.
BELTS
The
transmission of
power
from
the
transmitter
is
by
means
of
a
round
belt
9/32
inch
in
diameter
and
from
the
line
shaft
to
the
transmitter
by
means
of
a
fl
at
belt
1
inch
wide.
The
belts
must
be
placed
so
that
the
top
of
the
hand
wheel
runs
from
the
operator.
SPEED
The
machine
will
run
at
a
maximum
speed
of
1500
stitches
per
minute,
and
this
speed
should
not
be
exceeded.
OPERATING
STARTING
THE
MACHINE
Thoroughly
clean
and
oil
the
machine
before
starting
it.
Then
turn
the
hand
wheel
in
the
direction
the
machine
runs
a
few
times
and
see
that
machine
turns
freely.
If
this
is
the
case,
it
is
ready
for
sewing.
OILING
High
speed
machines
must
be
oiled
carefully
and
fre
quently
with
an
oil
which
is
free
from
rosin
and
acid
and
which
will
not
gum
or
become
rancid.
The
oiling
should
be
done
in
a
systematic
way
every
day
before
starting
the
machine
and
care
should
be
taken
that
all
the
oil
holes
are
supplied
with
oil.
(See
Illustration
"A,"
Page
6.)
The
left
end
of
the
needle
lever
is
fi
tted
with
hollow
pins
which
contain
ball
oilers.
When
oiling
press
the
tip
of
the
oil
can
spout
against
the
ball
and
force
the
oil
in.
The
needle
lever
connect
ing
rod
bearings
have
similar
oilers.
Frequent
oiling
is
necessary
as
lint
quickly
absorbs
the
oil.
It
is
recommended
that
the
machine
be
given
a
thorough
oiling
four
times
a
day.
The
transmitter
is
lubricated
with
solid
oil
through
a
hollow
main
shaft
from
a
compression
cup,
which
should
be
screwed
up
about
once
a
week.
If
the
bearings
run
hot,
the
compression
cup
should
be
screwed
up
immediately.
Refilling
will
not
be
required
oftener
than
once
a
month.
.
CLEANING
The
machine
should
be
cleaned
every
day.
With
the
aid
of
a
long
handled
paint
or
vaniish
brush
the
accumula
tion
of
lint,
dust,
etc.,
in
the
lower
part
of
the
machine
can
be
easily
removed.
To
thoroughly
clean
the
machine
it
is
recom
mended
to
remove
the
cloth
plate.
From the library of: Superior Sewing Machine & Supply LLC
Operating
(Cont'd)
SETTING
THE
NEEDLE
The
needles
for
this
class
of
machine
are
designated
Type
No.
8021.
They
are
made
with
a
double
groove
of
which
the
longer
one
enters
the
eye
of
the
needle.
The
needle
must
be
set
so
that
the
long
groove,
which
enters
the
eye
of
the
needle
is
directly
in
front
of
the
operator,
and
the
eye
itself
is
in
line
with
the
stitching.
Insert
the
needle
as
far
up
into
the
needle
bar
as
it
will
go,
and
tighten
the
needle
clamp
nut.
The
size
of
the
needle
must
be
in
proportion
to
the
diameter
of
the
thread,
that
is,
the
thread
must
pass
freely
through
the
eye
of
the
needle.
If
the
needle
is
too
small
for
the
thread
it
will
cause
frequent
breakage.
»
fa
f7
is
15
'
15
a
„
Illustration
"A"
01
Sehtyamm
THREADING
Illustration
"A"
shows
the
correct
threading
of
the
machine.
The
needle
thread
"A"
passes
from
the
thread
stand
through
the
guide,
adjacent
to
the
front
tension,
thence
down
to
the
right
between
the
two
tension
discs,
thence
directly
up
through
the
check
spring,
thence
through
guide
No.
113
to
the
eyelet
fastened
to
the
needle
lever,
thence
to
the
eyelet
fas
tened
to
the
upper
end
of
the
needle
bar
and
over
the
pin
which
extends
at
a
right
angle
to
the
needle
bar,
thence
downward
between
the
tension
discs
which
are
attached
to
the
needle
bar
and
into
the
needle.
From the library of: Superior Sewing Machine & Supply LLC
Operating
(Cont'd)
The
looper
thread
"B"
passes
from
the
thread
stand
through
the
guide
adjacent
to
the
rear
tension,
thence
between
the
ten
sion
discs,
thence
downward
through
the
guide
No.
40
which
is
located
in
the
rear
of
the
frame
at
the
ri
ght
side,
thence
through
the
guiding
tube,
thence
between
the
two
springs
Nos.
57
and
58,
thence
through
the
two
openings
of
the
take-up
thread
eyelet
No.
103
and
into
the
looper.
Leave
about
three
inches
of
thread
hang
loosely
from
the
end
of
the
looper.
IMPORTANT
HINTS
Should
the
machine
fail
to
function
properly,
yet
seems
to
be
in
good
condition,
any
one
of
the
fol
lowing
reasons
may
be
the
cause:
(1)
See
if
the
machine
is
threaded
correctly,
especially
at
the
different
tension
devices
and
remove
all
lint
which
may
have
accumulated
between
the
tension
discs.
(2)
Examine
the
needle
and
see
if
it
is
set
in
the
correct
position
and
properly
seated
in
the
needle
bar.
(3)
See
if
the
needle
is
perfectly
straight
and
if
the
point
is
perfect.
(4)
If
the
needle
is
damaged
or
bent
install
a
new
needle.
(5)
See
if
the
thread
passes
freely
through
the
eye
of
the
needle.
(6)
Clean
and
oil
the
machine
carefully.
Should
the
machine
still
fail
to
operate
properly,
it
is
probable
that
some
part
of
the
machine
needs
adjusting.
ADJUSTING
CAUTION
Whenever
any
changes
have
been
made
in
the
machine
always
tuiii
the
hand
wheel
in
the
operative
direction
a
few
times
to
make
sure
there
is
no
bind.
Do
not
run
the
machine
until
this
test
has
been
made,
as
otherwise,
damage
may
result.
NEEDLE
AND
LOOPER
Insert
a
new
needle
in
needle
bar,
then
turn
hand
wheel
in
operative
direction
until
looper
reaches
its
farthest
position
to
the
right
which
also
brings
the
needle
bar
to
its
lowest
point
of
travel.
At
this
time
the
distance
from
the
point
of
looper
to
the
center
of
needle
should
be
inch
(use
looper
adjusting
gauge
No.
21225-'i4)-
When
the
looper
moves
to
the
left,
its
point
should
pass
the
needle
with
a
distance
of
.005
inch
between
them.
This
adjust
ment
is
accomplished
by
loosening
the
set
screws
in
looper
eccentric
fork
No.
79090,
after
which
the
looper
can
be
moved
to
the
desired
position.
Again
tura
the
machine
in
operative
direction
until
the
needle
reaches
its
lowest
point
of
travel
and
farthest
position
to
the
From the library of: Superior Sewing Machine & Supply LLC
Adjusting
(Cont'd)
left.
As
the
needle
moves
upwardly
from
this
point,
and
looper
moves
to
left,
the
point
of
the
looper
should
pass
1/64
inch
above
the
upper
edge
of
eye
in
needle.
LOOP
RETAINER
The
loop
retainer
No.
79011
is
adjustable
universally.
Its
function
is
to
retain
the
loop
of
the
needle
thread
until
the
point
of
the
descending
needle
passes
back
of
the
looper
as
it
moves
to
the
right.
The
adjustment
is
as
follows:
During
the
forward
motion
of
the
looper
(to
the
left)
the
Fig.
1
point
of
the
loop
retainer
must
pass
close
to
the
upper
edge
of
the
looper
without
touching
it
at
any
point.
As
soon
as
the
looper
moves
backward,
the
loop
retainer
starts
on
its
way
back
over
the
upper
edge
of
the
looper,
and
the
point
of
the
hook
must
pass
as
near
as
possible
to
the
back
of
the
looper
without
contacting.
The
loop
retainer
must
be
set
so
that
when
the
needle
descends
past
the
looper,
the
distance
from
the
center
of
the
needle
to
the
hook
is
inch
(see
Figure
1).
Care
should
be
taken
to
see
that
the
loop
retainer
does
not
contact
the
looper
at
any
point.
CAST
OFF
WIRE
The
lower
portion
No.
79004
should
be
set
so
that
it
is
inch
from
the
bottom
of
the
slot
of
the
take-up
No.
79023.
The
upper
portion
No.
79004
A
should
be
set
so
that
the
rear
prong
retains
the
thread
to
the
point
where
the
periph
ery
of
the
cam
recedes,
when
the
thread
must
become
free
and
move
forward
to
the
front
prong,
which
retains
the
thread
until
the
take-up
has
completed
its
cycle
and
releases
the
lower
thread.
Care
should
be
taken
to
see
that
the
points
over
which
the
thread
passes
are
smoothly
polished,
especially
the
take-up.
Springs
Nos.
57
and
58
should
be
open
while
the
looper
makes
its
forward
motion
to
the
left,
but
must
be
closed
as
soon
as
it
From the library of: Superior Sewing Machine & Supply LLC
Adjusting
(Cont'd)
starts
to
move
to
the
right.
The
opening
and
closing
of
both
springs
is
regulated
with
the
screw
found
underneath
them.
(See
Figure
2.)
A/iS7
A/^sa
m97
REGULATING
LENGTH
Open
the
clotli
plate
slide
No.
2
A
at
OF
STITCH
the
left
side
of
the
machine,
and
turn
the
hand
wheel
in
the
operative
direction
until
the
middle
or
large
screw
head
No.
82
is
in
view,
then
by
means
of
the
com
bination
screw
driver
and
wrench
while
holding
the
hand
wheel
stationary,
loosen
the
nut
No.
18,
then
regulate
the
length
of
the
stitch
by
turning
the
middle
screw
No.
82.
To
make
the
stitch
longer,
turn
this
screw
to
the
right;
to
shorten,
turn
to
the
left.
The
nut
must
then
be
tightened.
FEED
DOGS
Feed
dogs
should
be
set
so
the
tips
of
their
teeth
extend
i^ch
above
the
throat
plate
when
at
the
highest
point
of
travel.
Machines
equipped
with
a
differential
feed
are
provided
with
an
adjustment
for
controlling
the
travel
of
the
differential
feed
dog
independently
of
the
main
feed
dog.
By
loosening
the
nut
No.
5144
the
stud
No.
79046
B
can
be
moved
in
the
segment
slot
of
the
feed
rocker
No.
5156.
Moving
the
stud
upwardly
increases
the
travel;
moving
it
downwardly
acts
the
reverse.
TENSIONS
To
obtain
perfect
work
a
great
deal
depends
on
proper
tensions
on
the
threads
and
a
suitable
length
of
stitch
commensurate
with
the
size
of
thread
employed.
The
tension
on
the
needle
thread
should
be
as
tight
as
is
consistent
with
its
strength.
The
tension
on
the
looper
thread
should
be
only
suffi
cient
to
steady
it
in
passing
through
the
machine.
From the library of: Superior Sewing Machine & Supply LLC
Plate
1
©
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79024
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From the library of: Superior Sewing Machine & Supply LLC
Plate
2
79005
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79005
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From the library of: Superior Sewing Machine & Supply LLC
79020B
Plate
3
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From the library of: Superior Sewing Machine & Supply LLC
Plate
4
36
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From the library of: Superior Sewing Machine & Supply LLC
Plate
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From the library of: Superior Sewing Machine & Supply LLC
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From the library of: Superior Sewing Machine & Supply LLC
Plate
7
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From the library of: Superior Sewing Machine & Supply LLC
Plates
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From the library of: Superior Sewing Machine & Supply LLC
Plate
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From the library of: Superior Sewing Machine & Supply LLC
Plate
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From the library of: Superior Sewing Machine & Supply LLC
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From the library of: Superior Sewing Machine & Supply LLC
This manual suits for next models
5
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