Singer 15-90 — User manual

FormForm 2000120001
(347)(347)

       INSTRUCTIONSINSTRUCTIONS

             FORFOR USINGUSING
    SINGERS I N G E R
ELECTRICELECTRIC SEWINGSEWING MACHINEMACHINE
       15-9015-90
         REVERSIBLEREVERSIBLE FEEDFEED
  LOCKLOCK STITCH,STITCH, FORFOR FAMILYFAMILY USEUSE




 WhenWhen RequiringReqmring                          LookLook farfor thethe
  Needles, Oil,                          RedRed "S"" S "
    PartsParts oror                                  ThereThere areare
   RepairsRepairs forfor                                 SingerSinger ShopsShops inin
 YourYo«r MachineMachiBe                                EveryEvery CityCity



  THETHE SINGERSINGER MANUFACTURINGMANUFACTURING CO.CO.

                PRINTEDPRINTED ININU.U.8,S. A.•.

THETHE IMPORTANCEIMPORTANCE OFOF USINGUSING
 "SINGER"SINGER'MUBRICANTSLUBRICANTS FORFOR YOURYOUR
   ELECTRICELECTRIC SEWINGSEWING MACHINEMACHINE

  "The"The BestBest isis thethe Cheapest"Cheapest"

 UseUse "SINGER""SINGER'* OilOil onon MachineMachine
   KnowingKnowing fromfrom manymany years'years* experienceexperience
   thethe greatgreat importanceimportance ofof usingusing goodgood oil,oil,
  wewe putput upup ananextraextraqualityqualitymachinemachine
    oil,oil, inin cans,cans, especiallyespecially preparedprepared forfor
   sewingsewing machines.machines.


UseUse "SINGER""SINGER'' MotorMotor LubricantLubricant onon MotorMotor
  TheThe "SINGER"" S I N G E R " MotorMotor LubricantLubricant isis
   especiallyespecially preparedprepared forfor lubricatinglubricating thethe
   bearingsbearings  ofof thethe electric.electricmotor.motor. ThisThis
    isis aa purepure non-flowingnon-flowing compoundcompound whichwhich
   retainsretains  itsits consistencyconsistency andand possessespossesses
   highhigh lubricatinglubricating qualities.qualities.


              Copyright,Copyright, TJ.11 S.S. A.,A.,
 1915,1915, 1920,1920. 1921,1921, 1923,1923, 1924,1924, 1926,1926, 1928,1928, 1931,1931, 1932,1932,
 1933,1933, 1935,1935, 1936,1936, 1937,1937, 1938,1938, 1940,1940, 19411941 andand19461946
        byby TheThe SingerSinger ManufacturingManufacturing Co.Co.
        AllAll RightsRights ReservedReserved forfor AllAll CountriesCountries

2^m

      INSTRUCTIONSI N S T R U C T I O N S FFORO R USINGU S I N Gf      SINGERS I N G E R
   ELECTRICELECTRIC SEWINGSEWING MACHINEMACHINE

           15-9015-90

             REVERSIBLEREVERSIBLE FEEDFEED
    OSCILLATINGOSCILLATING SHUTTLE.SHUTTLE, FORFOR FAMILYFAMILY USEUSE





                      MACHINEMACHINE 15-9015-90|


    THETHE SINGERSINGER MANUFACTURINGMANUFACTURING COMPANYCOMPANY

TOTO ALLALL WHOMWHOM ITIT MAYMAYCONCERN:CONCERN:

  TheThe placingplacing oror renewalrenewal ofof thethe Trade-MarkTrade-Mark
"SINGER"**SINGER** oror anyany otherother ofof thethe Trade-MarksTrade-Marksofof
TheThe SingerSinger ManufacturingManufacturing CompanyCompany (all(all ofof
whichwhich areare dulyduly RegisteredRegistered Trade-Marks)Trade-Marks) onon anyany
machinemachine thatthat hashas beenbeen repaired,repaired, rebuilt,rebuilt, recon-recon-
ditioned,ditioned, oror alteredaltered inin anyanywaywaywhatsoeverwhatsoever
outsideoutside aa SingerSinger factoryfactory oror anan authorizedauthorized SingerSinger
agencyagency isis forbidden.forbidden.





    GenuineGenuine "SINGER"^^SINGER'^ NeedlesNeedles shouldshould
     bebe usedused inin "SINGER"**SINGER'» Machines.Machines.
    TheseThese NeedlesNeedles andand theirtheir ContainersContainers
            areare markedmarked withwith thethe
   Company'sCompany^s Trade-MarkTrade-Mark "SIMANCO"^^SIMANCO*^ 11


       NeedlesNeedles inin ContainersContainers markedmarked
     "FOR" F O R SINGERSINGER MACHINES"MACHINES*'
     areare NOTNOT **SINGER''"SINGER" mademade needles.needles. 22

DESCRIPTIONDESCRIPTION
  MachineMachine15-90,15-90,forforfamilyfamilyuse,use,hashasananoscillatingoscillating
 shuttleshuttleonona ahorizontalhorizontalaxisaxisandandmakesmakesthethelocklockstitch.stitch.
    ItIthashasreversereversefeedingfeedingmechanismmechanism bybymeansmeansofof
whichwhich thethemachinemachine stitchesstitches asas readilyreadilyinina areversereverse
 directiondirectionasasititdoesdoesinina aforwardforwarddirection.direction.
   ItItisisespeciallyespeciallydesigneddesigned forforoperationoperation bybyelec-elec-
tricity,tricity, havinghaving anan electricelectric motormotor attachedattached toto thethe
uprightupright partpartofofitsitsarm.arm.TheThemotormotordrivesdrivesthethema-ma-
chinechine throughthrough aa belt.belt.
   ItItisisalsoalsoequippedequipped withwithananelectricelectricSingerlight.Singeriight.
  BeforeBefore startingstarting toto darndarnororembroider,embroider, makemake thethe
simplesimple adjustmentadjustment onon thethemachine,machine, asasinstructedinstructed
onon pagepage33.33.

         "SINGER"" S I N G E R " SERVICESERVICE
  NowNow thatthatyouyouhavehave purchasedpurchased youryour newnew  ""SINGER,"S I N G E R , "
wewe dodo notnot wantwant youyou toto feelfeel thatthatyouryourrelationsrelations withwith
usus havehave comecome toto anan end.end.YouYouarearecordiallycordiallyinvitedinvited
toto visitvisit youryour "SINGER"" S I N G E R "ShopShopatatanyanytimetimeforforassis-assis-
tancetance ininyouryoursewingsewing problems.problems. YouYou willwill bebe mostmost
welcome.welcome.
 WeWe hope,hope, too,too, thatthat youyou willwill makemake thethe "SINGER"" S I N G E R "
ShopShop youryour headquartersheadquarters forforsewingsewing suppliessupplies andand ser-ser-
vice.vice. OnlyOnly therethere ororthroughthroughauthorizedauthorized bondedbonded
"SINGER"" S I N G E R "representativesrepresentatives cancanyouyousecuresecure genuinegenuine
"SINGER"" S I N G E R " oil,oil, needles,needles, belts,belts, parts,parts, etc.,etc., soso im-im-
portantportant inin gettinggetting thethebestbestresultsresultsfromfrom youryour machine.machine.
AndAnd remember,remember, onlyonly anan authorizedauthorized ""SINGER"S I N G E R " rep-rep-
resentativeresentative shouldshould bebe allowedallowed toto touchtouch youryour machinemachine
whenwhen repairsrepairs oror adjustmentsadjustments areare required.required.
  World-wideWorld-wide ""SINGER"S I N G E R " ServiceService hashas nono equal.equal. UseUse it!it!

44

MotorMotor CanCanbebeOperatedOperatedonon EitherEither AlternatingAlternating
        CurrentCurrent oror DirectDirect CurrentCurrent
  TheThe electricelectric motor,'motor,whichwhichisislocatedlocated atat thethe backback
ofof thethe machine,machine, cancan bebe operatedoperated onon eithereither alternat-alternat-
inging currentcurrent  oror directdirect current,current, asas desired.desired. TheThe
standardstandard windingswindingsofof thethe motormotor areare forfor 110110 volts,volts,
andand motorsmotors cancan bebe furnishedfurnished forfor anyany voltagevoltage be-be-
tweentween 100100 andand 250.250.
  SpecialSpecial motorsmotors forfor 3232 voltsvolts directdirect current,current, andand
forfor 5050 voltsvolts alternatingalternating currentcurrent andand directdirect current,current,
havehave alsoalso beenbeen developeddeveloped andand areare available.available.


   PointsPoints toto DetermineDetermine BeforeBefore ConnectingConnecting
      MotorMotor toto ElectricElectric ServiceService LineLine
  ObtainObtain thethe following'informationfollowing information fromfrom thethe Elec-Elec-
trictric LightLight CompanyCompany whichwhich suppliessupphes thethe electricelectric
currentcurrent forfor thethe circuitcircuit toto whichwhich thethe motormotor isis toto
bebe connected:connected:
  1.1. IfIf currentcui^rent isis direct,direct, whatwhat isis thethe voltage?voltage? TheThe
voltagevoltage mustmust bebe withinwithin thethe rangerange stampedstamped onon thethe
namename plateplate ofof thethe motor.motor.
  2.2. IfIf currentcurrent isis alternating,alternating, inin additionaddition toto thethe
voltage,voltage, whatwhat isis thethe numbernumber ofof cycles?cycles? TheThenumbernumber
ofof cyclescycles mustmust bebe withinwithin thethe rangerange stampedstamped onon thethe
namename plateplate ofof thethe motor.motor.
  TheThe voltagevoltage ofof anyany circuitcircuit and,and, ififalternatingalternating
current,current, thethe numbernumber ofof cycles,cycles, cancan bebe verifiedverified byby
lookinglooking atat thethe namename plateplate onon serviceservice wattwatt metermeter
installedinstalled byby thethe locallocal ElectricElectric LightLight Company.Company.

55
       ToTo ConnectConnect thethe MachineMachine toto
              ElectricElectric ServiceService LineLine
  PushPush thetheterminalterminalplugplug atatoneoneendendofof thetheelectricelectric
cordcord asas fy,rfar asas itit willwill gogo onon thethethree-pinthree-pinterminalterminal
blockblock atat thethe rightright ofof thethe machine.machine. AttachAttachthetheplugplug
atat thetheotherotherendendofofthethecordcordtotothethenearestnearestelectricelectric
lightlight socketsocket andand thethemachinemachineisis readyready forfor operation.operation.

  ToTo InsureInsure PerfectPerfect ActionAction ofof thethe MachineMachine
  TheThe balancebalance wheelwheel mustmust alwaysalways turnturn overover towardtoward
thethe operator.operator.
 DoDo notnot runrunthethemachinemachine withwith thethe presserpresser footfoot
restingresting onon thethe feedfeed withoutwithout clothcloth underunder thethepresser.presser
foot.foot.
  DoDo notnot runrunthethemachinemachinewhenwhen bothbothbobbinbobbin casecase
andand needleneedle areare threaded,threaded, unlessunless therethere isis materialmaterial
underunder thethe presserpresser foot.foot.
  DoDo notnot trytry totohelphelpthethemachinemachine byby pullingpulhng thethe
fabric,fabric, lestlest youyou bendbend thethe needle.needle. TheThemachinemachine feedsfeeds
thethe workwork withoutwithoutassistance.assistance.
  TheThe slideshde overover thethe bobbinbobbin casecase shouldshould be,be keptkept
closedclosed whenwhen thethe machinemachine isis inin operation.operation.

    ToTo TurnTurn SingerlightSingeriight "On"" O n ' ' oror "Off""Off"
  ReachReach underunder thethe machinemachine armarm andand movemove thethe
switchswitch (A,(A, Fig.Fig. 2)2) toto thethe rightright oror leftleft asas desired.desired.

             CAUTIONCAUTION
  WhenWhen youyou havehave finishedfinished youryour sewing,sewing, alwaysalways dis-dis-
connectconnect thethe plugplug fromfrom thethe electricelectric socket.socket.

66

     ToTo RemoveRemove andand ReplaceReplace thethe BulbBulb
  DoDo notnot attemptattempt toto unscrewunscrewthethe bulb.bulb. ItIt isis ofof thethe
 bayonetbayonet andand socketsocket typetype andand doesdoes notnot unscrew.unscrew.





                          FIG.FIG. 22


  ToTo removeremove thethe bulb.bulb. HavingHaving turnedturned thethe shadeshade
slightly,slightly, holdhold thethe SingerlightSingeriight socketsocket withwith oneone handhand
andand withwith thethe otherother handhand presspress thethe bulbbulb intointo thethe
socketsocket andand atat thethe samesame timetime turnturn thethe bulbbulb overover fromfrom
thethe machinemachine asas farfar asas itit willwill go,go, thenthenwithdrawwithdraw
thethe bulb.bulb.
  ToTo insertinsert aa newnew bulb.bulb. HoldHold thethe socketsocket withwith oneone
handhand andand atat thethe samesame timetime withwith thethe otherother handhand
presspress thethe bulbbulb intointo thethe socketsocket andand turnturn itit overover
towardtoward thethe machinemachine untiluntil thethe bulbbulb pinpin (B,(B, Fig.Fig. 2)2)
entersenters thethe notchnotch inin thethe socket,socket, thenthen returnreturn thethe shadeshade
toto itsits normalnormal position,position, asas shownshown inin Fig.Fig. 2.2.

7
        ToTo OperateOperate thethe MachineMachine
  RaiseRaise thethepresserpresser footfoot (B)(B)bybymeansmeans ofof thethepresserpresser
barbar lifterhfter (C)(C) toto preventprevent injuryinjury toto thethe footfoot (B)(B) andand
feedfeed (A).(A).





            FIG.FIG. 3.3. FRONTFRONT VIEWVIEW OFOF THETHEMACHINEIMACHINE
  PlacePlace aa piecepiece ofcf clothcloth underunder thethe presserpresser footfoot andand
letlet thethe footfoot downdown uponupon it.it.
  TurnTurn onon thethe electricelectric currentcurrent andand presspress thethe kneeknee
controllercontroller toto thethe right,right, oror presspress downdoAvn onon thethe pedalpedal ofof
thethe footfoot controller.controller. AsAs thethe pressurepressure onon thethe controllercontroller
isis increased,increased, thethe speedspeed ofof thethe machinemachine isis increased,increased,
thethe speedspeed beingbeing controlledcontrolled entirelyentirely byby thethe amountamount
ofof pressurepressure onon thethe controller.controller. OperateOperate thethe machinemachine
inin thisthis way,way, withoutwithout beingbeing threaded,threaded, untiluntil youyou havehave
becomebecome accustomedaccustomedtoto guidingguiding thethe materialmaterial andand
operatingoperating thethe controller.controller.

8
        ToTo RemoveRemove thethe BobbinBobbin
  TurnTurn thethe balancebalance wheelwheel overover towardtoward youyou untiluntil
thethe threadthread take-uptake-up leverlever (5,(5, Fig.Fig. 12)12) isis raisedraised toto





             FIG.FIG.4.4.REMOVINGREMOVINGTHETHEBOBBINBOBBINCABECASE
itsits highesthighest position.position. DrawDraw toto thethe leftleft thetheslideslide inin
thethe bedbed ofof thethemachine.machine. ReachReachdowndownwith%with thethe
thumbthumbandandforefingerforefinger ofof thethe leftleft hand,hand, openopen thethebob-bob-
binbin casecase latchlatch (A,(A, Fig.Fig. 4)4) andand liftlift outoutthethebobbinbobbin
case.case. WhileWhile thethe latchlatchremainsremains open,open, thethebobbinbobbin isis
retainedretained inin thethe bobbinbobbin case.case. ReleaseRelease thethe latch,latch,turnturn
thetheopenopen endendofof thethebobbinbobbin casecasedownwarddownward andand thethe
bobbinbobbin willwill dropdrop out.out.
         ToTo WindWind thethe BobbinBobbin
   ItItisisnecessarynecessary totounderstandunderstand thethestopstopmotionmotion
(C,(C, Fig.Fig.5)5)bybywhichwhichthethebalancebalance wheelwheel(B,(B,Fig.Fig.5)5)
cancanbebereleasedreleased whenwhen required,required, thusthus permittingpermittingthethe
windingwinding ofof bobbinsbobbins withoutwithout runningrunning thethestitchingstitching
mechanism.mechanism.

99
   ReleaseRelease thethe balancebalance wheelwheelbyby turningturning thethe stopstop
 motionmotion screwscrew (C)(C) overover towardtoward you.you. ItIt isis necessarynecessary
 toto holdhold thethe balancebalance wheelwheel whilewhile looseningloosening thethe stopstop
 motionmotion screw.screw.





             FIG.FIG. 5.5. WINDINGWINDINGTHETHEBOBBINBOBBIN

   PlacePlace thethe bobbinbobbin onon thethe bobbinbol)bin winderwdnder spindlespindle
andand pushpush itit upup closelyclosely againstagainst thethe shoulder,shoulder, havinghaving
thethe 'smallsmall pinpin inin thethe shouldershoulder enterenter thethe holehole inin thethe
sideside ofof thethe bobbin.bobbin. PutPut thethe spoolspool ofof threadthread onon thethe
spoolspool pinpin (1).(1). DrawDraw thethe threadthread underunder andand betweenbetween
thethe tensiontension discsdiscs (2)(2) onon thethe bedbed ofof thethe machine,machine,
thenthen passpass thethe threadthread upup andand throughthrough oneone ofof thethe holesholes
(3)(3) inin thethe leftleft sideside ofof thethe bobbin,bobbin, fromfrom thethe inside.inside.
PressPress downdown onon thethe bobbinbobbin andand thethe bobbinbobbin winderwinder
latchlatch (A)(A) willwill dropdrop downdown andand holdhold thethe bobbinbobbin winderwinder
pulleypulley againstagainst thethe hubhub ofof thethe balancebalance wheel.wheel. ThenThen
presspress thethe kneeknee controllercontroller oror thethe footfoot controllercontroller thethe
samesame asas forfor sewing.sewing.

11 11
      ToToThreadThreadthetheBobbinBobbinCaseCase

    Hold the bobbin  Hold the bobbin  between the thumbbetween the thumb  and  forefinger  ofand forefinger of  the right hand, withthe right hand, with  the thread on  topthe thread on top  drawing from rightdrawing from right  to left, as shown int9 left, as shown in  Fig. 7.Fig. 7.

                                          FIG.FIG.7 7

                        WithWiththetheleftlefthand,hand,
                           holdholdthethebobbinbobbincasecaseasas
                    shownshown ininFig.Fig.7,7, thethe
                               slotslotininthetheedgeedgebeingbeing
                             atatthethetop,top,andandplaceplace
                        thethe bobbinbobbin intointo thethe
                          bobbinbobbincase.case.





           FIG.FIG. 88
   Then pull  the  Then pull the thread into the slotthreadas shownintointheFig.slot8,as shown in Fig. 8, and back under theand back under the tension spring intotensionthe slot springat the intoend
theof theslottensionat thespringend       tension              springofas the   shown          in              Fig.as  shown           in             Fig.                   9.9.               FIGFIG. 99

1212
      ToTo ReplaceReplace thethe BobbinBobbin CaseCase
  AfterAfter threading,threading, taketake thethe bobbinbobbin casecase byby thethe
latch,latch, holdingholding itit betweenbetween thethe thumbthumb andandforefingerforefinger





      FIG.FIG. 10.10. BOBBINBOBBIN CASECASE THREADEDTHREADEDANDAND REPLACEDREPLACED

ofof thethe leftleft hand.hand. PlacePlace thethe bobbinbobbin casecase onon thethe centercenter
studstud (B,(B, Fig.Fig. 10)10) ofof thethe shuttleshuttle bodybody withwith thethe posi-posi-
tiontion fingerfinger (A,(A, Fig.Fig. 10)10)oppositeoppositethethe notchnotch atat thethe toptop
ofof thethe shuttleshuttle race.race. ReleaseRelease thethe latchlatch andand presspress thethe
bobbinbobbin casecase backback untiluntil thethe latchlatch catchescatches thethe groovegroove
nearnear thethe endend ofof thethe stud.stud. AllowAllow aboutabout threethree inchesinches
ofof threadthread toto hanghang freefree fromfrom thethe bobbinbobbin casecase andand
closeclose thethe shdeslide inin thethe bedbed ofof thethe machine.machine.

1313

          ToTo SetSet thetheNeedleNeedle
   SelectSelect aaneedleneedle totosuitsuitthethesizesizeofofthreadthreadbeingbeing
 used.used. SeeSeeinsideinside covercover pagepage atatbackback ofofbook.book.
' TurnTurnthethebalancebalancewheelwheeloverovertowardtowardyouyou untiluntil
 thetheneedleneedle barbarisisatatitsitshighesthighestposition,position,andandloosenloosen
thethe thumbthumbscrewscrew (A,(A,Fig.Fig.11)11)ininthetheneedleneedle clamp.clamp.





             FIG.FIG. 11.11. POSITIONINGPOSITIONING OFOFNEEDLENEEDLE
                    ININ NEEDLENEEDLE CLAMPCLAMP

  HaveHave thethe flatflat sideside ofofthetheshankshank ofof thethe
needleneedle towardtoward thethe leftleft asasshownshown aboveabove andand
putput thetheneedleneedle upupintointo thetheclampclamp asas farfar asas i
itit willwill go.go. ThenThen tightentighten thethethumbthumb screw.screw.

1414


            UpperUpper ThreadingThreading
                    (SEL(SEE FIG.FIG. 12)12)
  TurnTurn thethe balancebalance wheelwheel overover towardtoward youyou untiluntil
thethe threadthread take-uptake-up leverlever (5)(5) isis raisedraised toto itsits highesthighest
position.position. PlacePlace thethe spoolspool ofof threadthread onon thethe spoolspool pinpin
atat thethe toptop ofof thethe machinemachine andand passpass thethe threadthread toto
thethe leftleft throughthrough thethe threadthread guideguide (1)(1) atat thethe rearrear ofof
thethe faceface plate,plate, down,down, underunder andand fromfrom backback toto frontfront
betweenbetween thethe tensiontension discsdiscs (2),(2), thethe threadthread guardguard (L)(L)
guidingguiding thethe threadthread betweenbetween thethe discs.discs. (See(See insertinsert inin
Fig.Fig. 12).12). WithWith thetherightrighthandhandholdholdthethespoolspool toto pre-pre-
ventvent itit fromfrom turning,turning, andand withwith thethe leftleft handhand drawdraw thethe
threadthread upup intointo thethe take-uptake-up springspring (4)(4) untiluntil thethe threadthread
entersenters thethe retainingretaining forkfork (3),(3), thenthen passpass thethe threadthread upup
andand fromfrom backback toto frontfront throughthrough thethe holehole inin thethe threadthread
tare-uptale-up leverlever (5),(5), downdown throughthrough thethe guideguide (6)(6) onon thethe
faceface plate,plate, intointo thethe guideguide (7)(7) onon thethe needleneedle clampclamp andand
fromfrom rightright toto leftleft throughthrough thethe eyeeye (8)(8) ofof thethe needle.needle.
  DrawDraw aboutabout twotwo inchesinches ofof threadthread throughthrough thethe eyeeye
ofof thethe needleneedle withwith whichwhich toto commencecommence sewing.sewing.

1616
        ToTo PreparePrepare forfor SewingSewing
  WithWith thethe leftleft hand,hand, holdhold thethe endend ofof thethe needleneedle
thread,thread, leavingleavingititslackslackfromfromthethe handhand toto thethe needle.needle.
                       TurnT u r n thethe bal-bal-
 f)kfA •^^^HHP^f'/       f V | | | | | B ^ ^ | |  ancea n c e wheelw h e e l
 liK.: ji^pBii;i                 overover towardtoward youyou
  I   \A% M          r              untiluntil thethe needleneedle
                            movesmoves downdown andand
                        upup againagain toto itsits
                                  highesthighest position,position,
                                  thusthus catchingcatching thethe
                          bobbinbobbin thread.thread.
                   DrawD r a w upup thethe
                          needleneedle threadthread
FIG.FIG. 13.13.DRAWINGDRAWINGUPU PBOBBINBOBBINTHREADTHREAD  andand thethe bobbinbobbin
                                  threadthreadwillwillcomecome
upup withwith itit throughthrough thethe 'holehole in,in thethe throatthroat plate,plate,
asas shownshown inin Fig.Fig. 13.13. LayLaybothboththreadsthreads backback
underunder the,the presserpresser footfoot di-di-
agonallyagonally acrossacross thethe feed,feed,
asas shownshown ininFig.Fig.13A,13A, toto
thetherightrightororleft,left,depend-depend-
inging uponuponwhichwhichsidesideofof thethe
needleneedle thethe materialmaterial isis toto
bebe located,located, soso thatthatwhenwhen
thethepresserpresserfootfootisislowered,lowered,                        £/7403                                                     E/7 OJthethethreadsthreadswillwillbebefirmlyfirmly                                     F/G.FIG.13A.13A.THREADSTHREADSINI N
heldheldbetweenbetweenthethefeedfeedandand      POSITIONPOSITIONTOTOCOMAIENCECOMMENCE
thethepresserpresserfoot.foot.                    SEWINGSEWING
        ToToCommenceCommenceSewingSewing
  PlacePlacethethematerialmaterialbeneathbeneaththethepresserpresserfoot,foot,Powerfower
thethepresserpresserfootfootandandcommencecommence totosew.sew.
  WhenWhensewingsewing thickthick material,material,ititmaymaybebenecessarynecessary
tototurnturnthethebalancebalancewheelwheeloverover towardtoward youyou byhandby hand
totostartstartthethemachine.machine.ThisThisshouldshouldalsoalsobebedonedoneifif
thethemachinemachinestopsstopswhenwhensewingsewingacrossacrossthickthickseams.seams.

17

         ToTo RemoveRemovethetheWorkWork
  StopStopthethemachinemachinewithwiththethethreadthreadtake-uptake-upleverlever
(5,(5,Fig.Fig.12)12)atatitsitshighesthighestposition,position,raiseraisethethepresserpresser
footfootandanddrawdrawthethefabricfabricbackback andandtotothetheleft,left,passpass
thethethreadsthreadsoveroverthethethreadthreadcuttercutter(A,(A,Fig.Fig.13)13)andand
pullpulldowndown lightlylightly toto seversever them.them.LeaveLeavethetheendsendsofof
thethethreadsthreadsunderunderthethepresserpresserfoot.foot.

          ToTo TurnTurn aaCornerCorner
 'Stop'Stopthethemachinemachinewhenwhenthetheneedleneedleisiscommencingcommencing
itsitsupwardupward stroke.stroke. RaiseRaise thethepresserpresser footfoot andand turnturn
thethe workwork asas desired,desired, usingusing thethe needleneedle asas aa pivot,pivot,
thenthenlowerlower thethepresserpresser foot.foot.

  ToTo RegulateRegulate thethe PressurePressure onon thethe MaterialMaterial
  ForFor ordinaryordinaryfamilyfamilysewing,sewing,ititisisseldomseldom necessarynecessary
toto changechange thethe pressurepressure onon thethe material.material. IfIfsewinsewing
finefine silksilk oror flimsyflimsy material;material, lightenlighten thethe pressurepressure bby
turningturning thethe thumbthumb screwscrew (A,(A, Fig.Fig. 24)24) onon thethe toptop oof
thethe machinemachine overover toto thethe leftleft soso thatthat ititscrewsscrews up.up. TcTc
increaseincrease thethe pressure,pressure, turnturn thisthis thumbthumb screwscrew overover ttc
thethe rightright soso thatthat ititscrewsscrews down.down. TheThepressurpressure
shouldshould bebe onlyonly heavyheavy enoughenough toto preventprevent thethe materiamateria!
fromfrom risingrising withwith thethe needleneedle andand toto enableenable thethe feedfeed tt(
movemove thethe workwork alongalong evenly.evenly. TheThe heavierheavier thethe mama:
terial,terial, thethe heavierheavier thethe pressure;pressure; thethe lighterlighter thth(
material,material, thethe lighterlighter thethe pressure.pressure.

1818
     ToTo RegulateRegulate thethe DirectionDirection ofof FeedFeed
  ToTo feedfeed thethe goodsgoods fromfrom you,you, pushpush downdown thethe
 stitchstitch regulatorregulator leverlever (B,(B, Fig.Fig. 14)14) asas farfar asas itit willwill go.go.





     FIG.FIG.14.14.SHOWINGSHOWINGLEVERLEVERFORFORREVERSINGREVERSINGDIRECTIONDIRECTION
       OFOFFEEDFEEDANDANDREGULATINGREGULATINGLENGTHLENGTHOFOFSTITCHSTITCH

 n ToTofeedfeedthethegoodsgoodstowardtowardyou,you, raiseraisethethestitchstitch
 egulatorcgulatorleverlever(B)(B)asashighhighasasit itwillwillgo.go.
 7
  TheThedirectiondirectionofoffeedfeedcancanbebereversedreversedatatanyanypointpoint
  f >fa seama seamwithoutwithoutremovingremoving thetheworkworkfromfromthethe
 `achine.aachine.
 , BackBacktackingtackingis thereforeis thereforereadilyreadilyaccomplishedaccomphshed
 ndndthethefasteningfasteningofofthetheendsendsof ofseamsseamsis ismademadeeasy.easy.


t

1919
    ToToRegulateRegulatethetheLengthLengthofofStitchStitch
  TheThemachinemachinecancanbebeadjustedadjustedtotomakemakefromfrom6 6toto
3030stitchesstitchestotothetheinch-inchasasindicatedindicatedbybythethenumeralsnumerals
ononthethestitchstitchindicatorindicatorplateplate(C,(C,Fig.Fig.14).14).
  TheThenumbernumberofofstitchesstitches toto thetheinchinch thatthatthethema-ma-
chinechine isissetsettotomakemakeisisindicatedindicatedbybythethenumbernumber
whichwhich isis ininlineline withwith thetheupperupper sidesideofof thethestitchstitch
regulatingregulatingleverlever(B,(B,Fig.Fig.14).14).
  ToTochangechangethethelengthlengthofofstitch,stitch,loosenloosen thethethumbthumb
screwscrew(A,(A,Fig.Fig.14)14)andandmovemove itittotothethebottombottomofofthethe
slot.slot.ThenThenmovemovethethestitchstitchregulatingregulatingleverlever(B)(B)untiluntil
itsitsupperupper sideside isisininlinehnewithwiththethenumbernumber ofof thethe
desireddesiredlengthlengthofofstitch.stitch.NowNowmovemovethethethumbthumbscrewscrew
(A)(A) untiluntil thethestitchstitchregulatingregulating plateplatetouchestouches thethe
leverlever(B),(B),thenthentightentightenthethethumbthumbscrewscrew(A).(A).
  TheThemachinemachinewillwill nownow makemake thetheindicatedindicatednumbernumber
ofof stitchesstitches totothetheinchinchinineithereithera aforwardforwardororreversereverse
direction,direction, dependingdepending onon whetherwhether thethe leverlever (B)(B) isis atat
itsitslowestlowestororhighesthighestposition.position.

                  BastingBasting
  TheThe longestlongest stitchstitch mademade byby thethemachine,machine. No.No. 66
onon thethe stitchstitchindicator,indicator, isisfoundfoundsatisfactorysatisfactory forfor
basting,basting, afterafter looseningloosening thethe tensiontension onon thethe needleneedle
threadthreadsoso thatthatthethestitchesstitchesmaymaybebeeasilyeasilypulledpulledfromfrom
thethe material.material.
  MachineMachine bastingbasting  isis firmerfirmer andand moremore eveneven thanthan
thatthatdonedonebyby handhandininadditionadditiontotobeingbeing muchmuch quicker.quicker.

      ToTo SewSew FlannelFlannel oror BiasBias SeamsSeams
  UseUse aa shortshort stitchstitch andand asas lightlightaa tensiontension asas possiblepossible
onon thethe needleneedle threadthread soso asas toto leaveleave thethe threadthread looseloose
enoughenough inin thethe seamseam toto allowallow thethe goodsgoods toto stretchstretch
ifif necessary.necessary.

2020
                TensionsTensions
  ForFor ordinaryordinary stitching,stitching, thethe needleneedle andand bobbinbobbin
 threadsthreads shouldshould bebe lockedlockedininthethe centercenter ofof thethe thick-thick-
 nessness ofof thethe material,material, thus:thus:
      Oar717
                  FIG.FIG. 15.15. PERFECTPERFECTSTITCHSTITCH
   IfIf thethe tensiontension onon thethe needleneedle threadthread isis tootoo tight,tight, oror
 ifif thatthat onon thethe bobbinbobbin threadthread isis tootoo loose,loose, thethe needleneedle
threadthread willwill lielie straightstraight alongalong thethe upperupper surfacesurface ofof
thethe material,material, thus:thus:


                                                   ElINSE1J3J9
          FIG.FIG. 16.16.TIGHTTIGHTNEEDLENEEDLETHREADTHREADTENSIONTENSION
   IfIf thethetensiontension onon thethe bobbinbobbin threadthread isis tootoo tight,tight,
oror ifif thatthatonon thethe needleneedle threadthreadisis tootoo loose,loose, thethe bobbinbobbin
threadthread willwill lielie straightstraight alongalong thethe underunder sideside ofof thethe
material,material, thus:thus:



                                                          $11329
          ,FIG.FIG.  17. LOOSELOOSE NEEDLENEEDLETHREADTHREADTENSIONTENSION
  ToToRegulateRegulate thethe NeedleNeedleThreadThread TensionTension
  TheThe tensiontensionononthetheneedleneedle threadthreadcancanbeberegulatedregulated
onlyonlywhenwhenthethepresserpresser footfootisisdown.down.
                                               .      TheThenumberednumbered
  A    Q     .       I / I    dialdial(C,(C,Fig.Fig.18)18)isis
                        markedmarkedwithwithnum-num-
                               bersbersrangingrangingfromfrom0 0
                                 toto9,9,whichwhichindicateindicate
                                 differentdifferentdegreesdegreesofof
                                 tensiontensionwhichwhichcancanbebe
                              produced.produced.TheThenum-num-
                            bersbersdodonotnotdenotedenote
                           a aparticularparticularsizesizeofof
                               thread.thread.
                   813356E 1 3 3 5 6    I  l    ByB y notingnotingthethe
 o.H18.i . 18.NEEDLENEKULKTHREADl H K b : ATENSIONu TENSION-  -  numbernumberwhichwhichis isop-op-