Singer 15-90 Installation and operation manual

Form 20001
(347)
INSTRUCTIONS
FOR USING
SINGER
ELECTRIC SEWING MACHINE
15-90
REVERSIBLE FEED
LOCK STITCH, FOR FAMILY USE
When Requiring
Needles, Oil,
Parts or
Repairs for
Your Machine
Look far the
Red "S"
There are
Singer Shops in
Every City
THE SINGER MANUFACTURING CO.
PRINTED IN U. S. •.
Form
20001
(347)
INSTRUCTIONS
FOR
USING
SINGER
ELECTRIC
SEWINGMACHINE
15-90
REVERSIBLEFEED
LOCKSTITCH,
FOR
FAMILY
USE
When
Reqmring
Partsor
Repairsfor
Yo«r
MachiBe
Look
forthe
Red
"S"
There
are
Singer
Shops
in
EveryCity
THE
SINGERMANUFACTURINGCO.
PRINTED
INU.
8,A.

THE IMPORTANCE OF USING
"SINGER" LUBRICANTS FOR YOUR
ELECTRIC SEWING MACHINE
"The Best is the Cheapest"
Use "SINGER" Oil on Machine
Knowing from many years' experience
the great importance of using good oil,
we put up an extra quality machine
oil, in cans, especially prepared for
sewing machines.
Use "SINGER" Motor Lubricant on Motor
The "SINGER" Motor Lubricant is
especially prepared for lubricating the
bearings of the electric motor. This
is a pure non-flowing compound which
retains its consistency and possesses
high lubricating qualities.
Copyright, 11 S. A.,
1915, 1920, 1921, 1923, 1924, 1926, 1928, 1931, 1932,
1933, 1935, 1936, 1937, 1938, 1940, 1941 and 1946
by The Singer Manufacturing Co.
All Rights Reserved for All Countries
THE
IMPORTANCEOFUSING
SINGER'MUBRICANTSFORYOUR
ELECTRIC
SEWINGMACHINE
"The
BestistheCheapest"
Use
"SINGER'*
OilonMachine
Knowing
frommanyyears*experience
the
great
importanceofusing
good
oil,
we
putupanextraqualitymachine
oil,
incans,especiallypreparedfor
sewing
machines.
Use"SINGER''
Motor
Lubricant
on
Motor
The
"SINGER"
MotorLubricantis
especiallypreparedforlubricatingthe
bearingsofthe
electric.
motor.
This
is
a purenon-flowingcompound
which
retainsitsconsistencyand
possesses
high
lubricatingqualities.
Copyright,
TJ.S.A.,
1915,1920.
1921,
1923,1924,1926,1928,
1931,
1932,
1933,1935,1936,1937,1938,1940,
1941
and1946
by
TheSingerManufacturingCo.
All
RightsReservedfor
All
Countries

INSTRUCTIONS FOR USING
SINGER
ELECTRIC SEWING MACHINE
15-90
REVERSIBLE FEED
OSCILLATING SHUTTLE, FOR FAMILY USE
MACHINE 15-90
THE SINGER MANUFACTURING COMPANY
2^m
f
INSTRUCTIONS
FOR
USING
SINGER
ELECTRIC
SEWINGMACHINE
15-90
REVERSIBLEFEED
OSCILLATINGSHUTTLE.
FOR
FAMILY
USE
MACHINE
15-90|
THE
SINGERMANUFACTURINGCOMPANY

TO ALL WHOM IT MAY CONCERN:
The placing or renewal of the Trade-Mark
"SINGER" or any other of the Trade-Marks of
The Singer Manufacturing Company (all of
which are duly Registered Trade-Marks) on any
machine that has been repaired, rebuilt, recon-
ditioned, or altered in any way whatsoever
outside a Singer factory or an authorized Singer
agency is forbidden.
Genuine "SINGER" Needles should
be used in "SINGER" Machines.
These Needles and their Containers
are marked with the
Company's Trade-Mark "SIMANCO" 1
Needles in Containers marked
"FOR SINGER MACHINES"
are NOT "SINGER" made needles. 2
TO
ALL
WHOM
ITMAY
CONCERN:
The
placingorrenewaloftheTrade-Mark
**SINGER**
oranyotheroftheTrade-Marksof
The
SingerManufacturingCompany(allof
which
aredulyRegisteredTrade-Marks)onany
machinethathasbeenrepaired,rebuilt,recon-
ditioned,oralteredinanywaywhatsoever
outside
a SingerfactoryoranauthorizedSinger
agencyisforbidden.
Genuine
^^SINGER'^
Needlesshould
beusedin
**SINGER'»
Machines.
TheseNeedlesandtheirContainers
aremarked
with
the
Company^sTrade-Mark
^^SIMANCO*^
1
NeedlesinContainersmarked
"FOR
SINGERMACHINES*'
areNOT
**SINGER''
made
needles.2

DESCRIPTION
Machine 15-90,
for family use, has an oscillating
shuttle on a horizontal axis and makes the lock stitch.
It has reverse feeding mechanism by means of
which the machine stitches as readily in a reverse
direction as it does in a forward direction.
It is especially designed for operation by elec-
tricity, having an electric motor attached to the
upright part of its arm. The motor drives the ma-
chine through a belt.
It is also equipped with an electric Singerlight.
Before starting to darn or embroider, make the
simple adjustment on the machine, as instructed
on page 33.
"SINGER" SERVICE
Now that you have purchased your new "SINGER,"
we do not want you to feel that your relations with
us have come to an end. You are cordially invited
to visit your "SINGER" Shop at any time for assis-
tance in your sewing problems. You will be most
welcome.
We hope, too, that you will make the "SINGER"
Shop your headquarters for sewing supplies and ser-
vice. Only there or through authorized bonded
"SINGER" representatives can you secure genuine
"SINGER" oil, needles, belts, parts, etc., so im-
portant in getting the best results from your machine.
And remember, only an authorized "SINGER" rep-
resentative should be allowed to touch your machine
when repairs or adjustments are required.
World-wide "SINGER" Service has no equal. Use it!
DESCRIPTION
Machine
15-90,
forfamilyuse,hasanoscillating
shuttleona horizontalaxisandmakesthelockstitch.
It
hasreversefeedingmechanismbymeansof
which
themachinestitchesasreadilyina reverse
direction
asit
does
ina forwarddirection.
It
isespecially
designed
for operationbyelec-
tricity,
havinganelectricmotorattachedtothe
uprightpartofitsarm.Themotordrivesthema-
chine
througha belt.
It
is
also
equipped
with
anelectricSingeriight.
Beforestartingtodarnorembroider,makethe
simpleadjustmentonthemachine,asinstructed
on
page
33.
"SINGER"SERVICE
Now
thatyouhavepurchasedyour
new
"SINGER,"
we
donotwantyoutofeelthatyourrelations
with
ushave
come
toanend.Youarecordiallyinvited
to
visit
your
"SINGER"
Shopatanytimefor
assis-
tanceinyoursewingproblems.You
will
be
most
welcome.
We
hope,too,thatyou
will
makethe
"SINGER"
Shopyourheadquartersfor sewingsuppliesandser-
vice.
Only
thereorthroughauthorizedbonded
"SINGER"
representativescanyousecuregenuine
"SINGER"
oil,needles,belts,parts,etc.,soim-
portant
in
gettingthe
best
resultsfromyourmachine.
And
remember,onlyanauthorized
"SINGER"
rep-
resentativeshouldbeallowedtotouchyourmachine
when
repairsoradjustmentsarerequired.
World-wide
"SINGER"
Servicehasnoequal.Useit!

4
Motor Can be Operated on Either Alternating
Current or Direct Current
The electric 'motor, which is located at the back
of the machine, can be operated on either alternat-
ing current or direct current, as desired. The
standard windings of the motor are for 110 volts,
and motors can be furnished for any voltage be-
tween 100 and 250.
Special motors for 32 volts direct current, and
for 50 volts alternating current and direct current,
have also been developed and are available.
Points to Determine Before Connecting
Motor to Electric Service Line
Obtain the following'information from the Elec-
tric Light Company which supplies the electric
current for the circuit to which the motor is to
be connected:
1.
If current is direct, what is the voltage? The
voltage must be within the range stamped on the
name plate of the motor.
2.
If current is alternating, in addition to the
voltage, what is the number of cycles? The number
of cycles must be within the range stamped on the
name plate of the motor.
The voltage of any circuit and, if alternating
current, the number of cycles, can be verified by
looking at the name plate on service watt meter
installed by the local Electric Light Company.
4
Motor
Canbe
Operated
onEither
Alternating
Current
or
Direct
Current
The
electricmotor,
which
islocatedattheback
ofthemachine,canbe
operated
oneitheralternat-
ing
currentordirectcurrent,asdesired.The
standardwindingsofthemotorarefor 110volts,
and
motors
canbefurnishedforany
voltage
be-
tween
100and250.
Special
motors
for32voltsdirectcurrent,and
for50voltsalternatingcurrentanddirectcurrent,
have
also
been
developed
andareavailable.
Points
to
Determine
Before
Connecting
Motor
toElectric
Service
Line
Obtain
thefollowinginformationfromthe
Elec-
tric
LightCompany
which
supphes
theelectric
current
forthe
circuit
to
which
themotor isto
beconnected:
1.
Ifcui^rentisdirect,whatisthe
voltage?
The
voltage
mustbe
within
the
range
stamped
onthe
name
plate
ofthemotor.
2.
Ifcurrentisalternating,inadditiontothe
voltage,whatisthenumberofcycles?Thenumber
ofcyclesmustbe
within
the
range
stamped
onthe
name
plate
ofthemotor.
The
voltage
ofany
circuit
and,ifalternating
current,
thenumberofcycles,canbeverifiedby
looking atthe
name
plate
onservicewattmeter
installedbythelocal
Electric
LightCompany.

5
To Connect the Machine to
Electric Service Line
Push the terminal plug at one end of the electric
cord as fy,r as it will go on the three-pin terminal
block at the right of the machine. Attach the plug
at the other end of the cord to the nearest electric
light socket and the machine is ready for operation.
To Insure Perfect Action of the Machine
The balance wheel must always turn over toward
the operator.
Do not run the machine
with the presser foot
resting on the feed without cloth under the presser.
foot.
Do not run the machine when both bobbin case
and needle are threaded, unless there is material
under the presser foot.
Do not try to help the machine by pulling the
fabric, lest you bend the needle. The machine feeds
the work without assistance.
The slide over the bobbin case should be, kept
closed when the machine is in operation.
To Turn Singerlight "On" or "Off"
Reach under the machine arm and move the
switch (A, Fig. 2) to the right or left as desired.
CAUTION
When you have finished your sewing, always dis-
connect the plug from the electric socket.
To
Connect
the
Machine
to
Electric
Service
Line
5
Push
theterminalplugatoneendoftheelectric
cord
asfarasit
will
goonthethree-pinterminal
blockattherightofthemachine.Attachtheplug
attheother endofthecord tothenearest electric
light
socket andthemachineisreadyforoperation.
To
Insure
Perfect
Actionofthe
Machine
The
balance
wheel
mustalways
turn
overtoward
theoperator.
Do
notrunthemachine
with
thepresserfoot
restingonthefeedwithoutclothunderthepresser
foot.
Do
notrunthemachine
when
bothbobbin
case
andneedlearethreaded,unless thereismaterial
underthepresserfoot.
Do
nottrytohelpthemachinebypulhngthe
fabric,
lestyoubendtheneedle.Themachine
feeds
the
work
withoutassistance.
The
shde
overthebobbin
case
shouldbekept
closed
when
themachineisinoperation.
ToTurn
Singeriight
"On''or"Off"
Reach
underthemachinearmandmovethe
switch
(A,Fig.2)totherightorleftasdesired.
CAUTION
When
youhavefinished yoursewing,alwaysdis-
connect theplugfromtheelectricsocket.

6
To Remove and Replace the Bulb
Do not attempt to unscrew the bulb. It is of the
bayonet and socket type and does not unscrew.
FIG. 2
To remove the bulb. Having turned the shade
slightly, hold the Singerlight socket with one hand
and with the other hand press the bulb into the
socket and at the same time turn the bulb over from
the machine as far as it will go, then withdraw
the bulb.
To insert a new bulb. Hold the socket with one
hand and at the same time with the other hand
press the bulb into the socket and turn it over
toward the machine until the bulb pin (B, Fig. 2)
enters the notch in the socket, then return the shade
to its normal position, as shown in Fig. 2.
6
To Remove and Replace the Bulb
Donot attempt tounscrewthebulb.Itisofthe
bayonetandsockettypeand does notunscrew.
FIG. 2
To removethebulb.Havingturnedthe shade
slightly, holdtheSingeriightsocket with onehand
and with theotherhand press thebulbintothe
socketandatthe same time turn thebulboverfrom
themachineasfarasit will go,thenwithdraw
thebulb.
To inserta newbulb.Holdthesocket with one
handandatthe same time with theotherhand
press thebulbintothesocketand turn itover
toward themachine until thebulbpin(B,Fig.2)
entersthenotchinthesocket,thenreturnthe shade
toitsnormalposition,asshowninFig.2.

7
To Operate the Machine
Raise the presser foot (B) by means of the presser
bar lifter (C) to prevent injury to the foot (B) and
feed (A).
FIG.
3.
FRONT VIEW OF THE MACHINE
Place a piece of cloth under the presser foot and
let the foot down upon it.
Turn on the electric current and press the knee
controller to the right, or press down on the pedal of
the foot controller. As the pressure on the controller
is increased, the speed of the machine is increased,
the speed being controlled entirely by the amount
of pressure on the controller. Operate the machine
in this way, without being threaded, until you have
become accustomed to guiding the material and
operating the controller.
To
Operate
the
Machine
Raisethepresserfoot(B)bymeansofthepresser
barhfter(C)toprevent
injury
tothefoot(B)and
feed(A).
FIG.
3.FRONT
VIEW
OFTHE
IMACHINE
Place
a piececfclothunderthepresserfootand
let
thefootdownupon it.
Turn
ontheelectriccurrentandpresstheknee
controller
tothe
right,
orpress
doAvn
onthepedalof
thefoot
controller.
Asthepressureonthecontroller
is
increased,the
speed
ofthemachineisincreased,
the
speed
beingcontrolled
entirely
bytheamount
of
pressureonthecontroller.Operatethemachine
in
thisway,withoutbeingthreaded,
until
youhave
becomeaccustomedtoguidingthematerialand
operatingthecontroller.

8
To Remove the Bobbin
Turn the balance wheel over toward you until
the thread take-up lever (5, Fig. 12) is raised to
FIG. 4. REMOVING THE BOBBIN CABE
its highest position. Draw to the left the slide in
the bed of the machine. Reach down with
% the
thumb and forefinger of the left hand, open the bob-
bin case latch (A, Fig. 4) and lift out the bobbin
case. While the latch remains open, the bobbin is
retained in the bobbin case. Release the latch, turn
the open end of the bobbin case downward and the
bobbin will drop out.
To Wind the Bobbin
It is necessary to understand the stop motion
(C, Fig. 5) by which the balance wheel (B, Fig. 5)
can be released when required, thus permitting the
winding of bobbins without running the stitching
mechanism.
To
Remove
the
Bobbin
Turn
thebalancewheelovertowardyou
until
thethreadtake-uplever(5,Fig.12)israisedto
FIG.
4.REMOVINGTHEBOBBINCASE
its
highestposition.Drawtothelefttheslidein
thebedofthemachine.Reachdown
with
the
thumbandforefingerofthelefthand,openthe
bob-
bin
case
latch(A,Fig.4)and
lift
outthebobbin
case.
While
thelatchremainsopen,thebobbinis
retainedinthebobbin
case.
Releasethelatch,
turn
theopenendofthebobbin
case
downwardandthe
bobbin
will
dropout.
ToWindthe
Bobbin
It
isnecessarytounderstandthe
stop
motion
(C,
Fig.5)by
which
thebalancewheel(B,Fig.5)
can
bereleasedwhen required,thuspermittingthe
winding
ofbobbinswithoutrunningthestitching
mechanism.