E & L Manuafacturing American 180 Rifle Instruction Manual
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Figure9 Figure10 SectionII:HowtheAmerican180 S.M.G.Functions a.Bydisassemblingandassem- blingtheAmerican180you shouldbecomefamiliarwith theparts.Thenextstepisto learnhowthesepartsfunc- tion.Iftheuserunderstands howtheAmerican180works, hewillbeabletokeepitin operatingconditionandre- duceanystoppageswhich mightoccurduringfiring.This knowledgewillgivetheuser confidenceinhisweapon. b.Eachtimeacartridgeisfired, thepartsinsidetheAmerican 180functioninagivenorder. Thisisknownasthecycleof operation. 1.GENERAL.
c.Thecycleofoperationofsmall armsisbrokendownintoeight basicsteps.However,inthe American180,twoofthese steps-lockingandunlock- ing-donotoccur.Thesix basicstepsofthecycleof operationoftheAmerican180 arelistedbelowintheproper sequence,althoughmorethan onestepmaybeoccurringat thesametime. (1)Feeding-theplacingofa cartridgeinthefeedblock, infrontofthebolt,soit canbechambered.This actiontakesplaceinthe magazinegenerally,but canbeaccomplished manually. (2)Chambering-movingthe cartridgeforwarduntilitis properlyseatedinthe chamber. (3)Firing-thestrikingofthe primerofthecartridgeby thefiringpintoignitethe cartridge. (4)Extraction-removalofthe emptycartridgecasefrom thechamber. (5)Ejection-removalofthe emptycartridgecasefrom thereceiver. (6)Cocking-retractionofthe boltfarenoughsothatit willpickupanewcar- tridgeand,asitmoves forward,willhaveenough energytofirethenew cartridge. 2.FUNCTIONOFTHEAMERICAN 180.Astheboltismovedbacktoa cockedposition,thedrivingspring iscompressed,andthesearen- gagesthesearnotchofthebolt. Whenthetriggerispressed,the searreleasesthebolt,whichis drivenforwardbythedrivespring. Duringthisforwardmovement, theboltpushesacartridgefrom thefeedblockintothechamber. Theboltcontinuesforwardand firesthecartridge.Whenthecar- tridgeisfiredthechamberpres- sureforcesthebulletoutofthe muzzleofthebarrel.Atthesame time,thispressureovercomesthe forwardmovementoftheboltand startsiltotherear.Bythetimethe boltandemptycartridgecase havemovedtotherearfarenough toopentherearendofthecham- ber,thebullethasleftthebarrel andthechamberpressurehas decreased.(IntheAmerican180, thechamberpressureisrelatively lowandtheboltisrelativelyheavy, thuseliminatingtheneedforthe stepsoflockingandunlocking.) Duringtherearwardmovementof thebolt,theemptycartridgecase isextractedandejected,thedriv- ingspringiscompressed,andthe nextroundinthemagazinemoves intothepawsofthefeedblock. Therearwardmovementofthe boltisstoppedbythecompressed drivingspring. 3.OPERATIONOFTHETRIGGER ANDSEAR. a.Whenthetriggerispressed,it rotatesaroundthetriggerpin andforcestheseartorotate aroundthesearpin,causing thesearnosetobemoved downandawayfromthesear notchinthebottomofthebolt. Thisallowsthebolttomove forwardundertheactionof theexpandingdrivespring. b.Automaticfire-Withthesel- ectorpushedtotheright(auto- maticposition),ifthetriggeris heldtotherear,thenoseofthe sear.cannotengagethesear notchofthebolt.Theboltwill continuetomoveforwardand backward,firingtheweapon automaticallyuntilthetrigger isreleased. c.Semi-automaticfire-Withthe selectorpushedtotheleft(semi- automaticposition),whenthe triggerispulled,thenoseof theseardisengagesfromthe searnotchonthebottomof thebolt,allowingtheboltto
moveforward.Atthesame timeundertheactionofthe searspring,thesearismoved backintopositiontoengage theboltandholdittotherear untilpressureisreleasedfrom thetrigger. 4.FEEDING. a.Whenaloadedmagazineis placedontheweapon,the magazinecatchholdsthemag- azineinposition.Thebottom cartridgeisheldbythefeed pawsofthefeedblockthrough -- theactionofthemagazine springandfollower.Whenthe boltmovesforward,itremoves theroundfromthefeedblock. b.Whentheboltmovestothe rearandclearsthefeedblock, thenextcartridgeisplacedin thefeedblockbytheactionof themagazinespringandfoll- ower. 5.CHAMBERING.Thebolt,moving forwardundertheactionofthe expandingdrivespring,pushes thecartridgeoutofthefeedblock. Thebulletrampofthefeedblock aidsinaligningthecartridgewith thechamber.Astheboltcon- tinuesforward,thecartridgeis pushedintothechamberbythe frontofthebolt.Thebaseofthe cartridgeprotrudesslightlyfrom thechamberwhenthecartridgeis fullyseated. 6.FIRING.Afterthecartridgeis chambered,theboltcontintJesto moveforward.Theextractor springsoutunderandsnapsonto therimofthecartridge.Atthe sametime,thefixedfiringpin strikestheprimerofthecartridge, firingthecartridge.Attheinstant offiringthecartridgeisenclosed inthechamber,andtherimofthe cartridgeisengagedbytheex- tractor. 7.EXTRACTION.Whenthecart- ridgeisfired,thegaspressure forcesthebulletoutofthemuzzle andtheemptycartridgecaseout ofthechamber,pushingthebolt totherear.Theextractorholds thebaseofthecartridgecase againstthebolt.Theboltcon- tinuesmovingtotherear,carry- ingtheemptycartridgecasewith it.Extractioniscompletedwhen thefrontofthecartridgecase clearstherearofthechamber.If thecartridgeisnotfired,theex- tractorwillremoveitfromthe chamberwhentheboltismanu- allypulledtotherear. 8.EJECTION.Astheboltmovesto therear,theemptycartridgecase isheldbytheextractor.Whenthe frontofthecartridgecaseclears therearofthechamber,withthe extractorservingasapivotpoint, thecartridgecaseisdeflectedout oftheejectionopeninginthebot- tomofthereceiver. 9.COCKING. a.Semi-automatic-Asthebolt movestotherear,thedrive springiscompressed,thenose ofthesearwillmoveup.Asthe boltmovesforward,thesear nosewillengageinthesear notchandholdthebolttothe rearinacockedposition.The triggermustbereleasedand pulledtofireagain. b.Automatic-Ifthetriggerhas notbeenreleased,theboltwili continueforwardandthecycle ofoperationwillberepeated. 10.OPERATIONOFSAFETY.The American180hasapositivesafety thatblocksthesearwhenrotated tothesafeposition.
SectionIII:Operations 1.GENERAL.Beforefiringthe American180,thefirermustknow howtofillthemagazine;must knowhowtoload,fire,andunload theweapon;andmustobserve safetyprecautions.Thesepoints arecoveredinthissection. 2.TOFILLMAGAZINE. CAUTION:Beforeattemptingto fillthemagazine,allspringten- sionshouldbereleasedfromthe magazinewindermechanism,or, Figure11 ifthemagazineispartiallyfilled, themagazinewindingbrake shouldbeengaged. a.Pressyourthumbsuponthe clipsofthemagazinewinding deviceandcatchitwithyour fingers(figure11). b.Pressthelockonthebaseand turnthemagazinebaseuntil youcanseethefilledchamber throughtheloadingslotofthe base(figure12).Themarking arrowvisibleonthemagazine shouldbepositionedbelow thenarrowprotrusionofthe base. Figure12
Figure13 c.Laythefirstcartridgeinthe slotonthebaseofthemaga- zine(figure13).Pressthelock ofthemagazineandslowly rotatethemagazinebase.The cartridgewillgointothemag- azinewithoutforceofanykind. Repeatthisprocessfor59 rounds. d.Afterhavingloaded59rounds, youhavetoturntheloading slotoverthefullchamber. (Thenyouwillfeelaresist- ance,calledstepresistance.) TheloadingslotwiIIopenonce againwithanemptycham- ber,andrepeatthewholepro- cess.Loadingthesecondand thethirdlayersisperformed justlikethefirstone. whenloading.Themagazinealso canbeloadedbymeansofaspe- cialioadingdevice. e.Installationofthemagazine windingdeviceisdonebypush- ingtheclipsofthemagazine windingdeviceintotheholes ofthebaseuntiltheylockin place(figure14). CAUTION:Awindingdeviceim- properlyinstalledmaycomeoff duringfiringanddamagethe spring. 3.TOLOADTHEAMERICAN160. CAUrtON:Donotuseforcewhen insertingrounds.Donotskipa chamber.Itisadvisabletoalways loadfulllayersofammunition, eitherload59rounds,118rounds, orthefulilimitof177rounds.This preventsthemagazinefromdrop- pinglooseroundswhenthe magazineisinstalledorremoved. a.Insertthewideprotrusionof themagazinebaseintothe magazineguideofthebarrel andpressthenarrowprotru- siontightlyuntilthemagazine snapsintoplace(figure15). Note:Itisadvisabletoputthe magazineonanon-slipsurface Note:Pullingbackthemagazine clipwithyourthumbfacilitates theinstallationofthemagazine. b.Windingthemagazine.Wind upclockwiseuntilitstops, about3V.turnsforafullmag- azine(figure16).Windingde- vicestoplevermustnotbe undertension.
Figure16 CAUTION:Ifmagazineisonly partiallyfilled,donotwindcom- p/etely.Windonly1V.turnsfor each(59rounds)layer. SectionIV:Malfunction,Stoppages andImmediateAction 1.GENERAL. a.Inordertoremoveapartialor fullmagazine,themagazine windingdevicestoplevermust beplacedinthepositionmark- edF(outsideawayfrom center). b.Pullbackonmagazineclip andliftoffmagazine.Inspect. thechamber(lookandfeel). a.Amalfunctionisafailureof theweapontofunctionsat- isfactoriIy. b.Astoppageisanyunintentional interruptioninthecycleof operation.IftheAmerican180 stopsfiringthroughnofaultor intentionofthefirer,oran attempttofireismadeandthe weaponfailstofire,thena stoppagehasoccurred.The firermustbeabletoreducea stoppageandcontinuefiring. c.Immediateactionistheprompt actiontakenbythefirerto reduceastoppagewithoutcon- sideringthecause. c.Pullbackonthebolthandle untilitstops,andpushitfor- wardintoitsforwardmost position.TheAmerican180is nowreadytofire. 4.UNLOADING. 5.SAFETYPRECAUTIONS. Safetycannotbeoveremphasized. a.Neverconsideraweaponto besafe. b.Neverplayfullyorcarelessly pointaweaponatanyone. c.Loadtheweapononlywhen readytofire. d.Takesafetyoffonlywhen weaponisraisedtofire. e.Neverleaveanyobstructionin themuzzleorbase. 2.MALFUNCTIONS. a.Failuretofunctionfreely- sluggishoperationofthe American180isusuallydueto excessivefrictioncausedby dirt,lackofproperlubrication, burredordentedguiderodor dentedorbentreceiver. b.Uncontrolledautomaticfire(run- awaygun)-uncontrolledauto- maticfireisfirethatcontinues afterthetriggerhasbeenre- leased.Thismaybecausedby
Stoppage Failure toFeed Failureto Chamber Failure toFire Failure toExtract Failure toEject Failure toCock CAUSEOFSTOPPAGES Cause Dirtyordentedmagazine Weakorbrokenmagazinespring Deformedammunition Wornorbrokenmagazinecatch Dirtychamber Obstructioninchamber Weakdrivespring Defectiveammunition Defectivefiringpin Weakdrivingspring Brokenextractor Notlikelytooccur Wornsear Wornsearnotch Bentguiderod Dirtbehindcockingknob HowtoReduce Replacemagazine Replacemagazine Replaceammunition Replacecatch Cleanchamber Remove Replacespring Replaceammunition Replacebolt Replacedrivingspring Replaceextractor Replacesear Replacebolt Replaceorstraightenrod Cleancockingknob thefollowing: (1)Wornsearnose. (2)Wornsearnotch. (3)Brokensear. (4)Shortrecoil. Incaseofuncontrolledauto- maticfire,keepthegunpointed atthetarget. 3.STOPPAGES. a.Stoppagesareclassifiedinac- cordancewiththesixstepsin. thecycleofoperation.Stop- pagesareusuallytheresultof faultyammunitionorimproper careofthegun.Aknowledge ofhowthegunfunctionswill enablethefirertoclassifyand correctthestoppage.Listed belowarethecausesofstop- pageswhichmightoccur: (1)FailuretoFeed-cartridge fromthemagazineisnot positionedinthefeedblock infrontofthebolt.Most stoppagesofsubmachine gunsarefailuretofeed, causedbydefectiveordirty magazines. (2)FailuretoChamber- cartridgefromthefeed blockisnotseatedinthe chamber. (3)FailuretoFire-thecart- ridgeischamberedbut doesnotfire. (4)FailuretoExtract-ifthe cartridgefires,thechamber pressurewillusuallypush theemptycartridgecase outofthechamber.Ifthe cartridgecaseisnotcom- pletelyremovedfromthe chamberandtheboltis retracted,thenthereisa failuretoextract.Thisstop- pageseldomoccurs. (5)FailuretoEject-theempty cartridgecaseisnote- jectedfromthereceiver. (6)FailuretoCock-ifthebolt isretractedandisnotheld bythesear,orifduring
firingtheboltdoesnot movetotherearfarenough toclearthecartridgein thefeedblock,thewea- ponhasfailedtocock. b.Commonstoppages-thetwo mostcommonstoppagesare: (1)FailuretoFeed-usually causedbydirtymagazine, orfromamagazinewhich isnotwoundproperly,or fromadamagedmagazine. (2)FailuretoFire-usually causedbydefec1ive ammunition. a.Causeofstoppages-thechart ontheprecedingpagelists commoncausesofvarious stoppages. d.Preventionofstoppages- periodicinspectionandproper careandcleaningwillreduce thepossibilityoftheAmerican 180havingstoppages. .4.IMMEDIATEACTION. a.Asthefirststepinclearinga stoppage,pullbackonthebolt handleandreturnittoitsfor- wardmostposition.Inspect thechamberfromthebottom oftheweapon,throughthee- jectionportforthepresenceof jammedammunition.Thisis usuallycausedbydefective ammunition.Placethemaga- zinewindingbrakeintheF position,removethemagazine andclearthejammedrounds manuallyfromthechamber area.Replacethemagazine, removethemagazinewinding brake,pullthebolthandleto therearandreturnittothe closedpositionandagain attempttofire. b.Ifafailuretofireoccurs,again, movethemagazinewinding devicetothebrake F posi- tion.Removethemagazineand inspecttheweaponinorderto locateandclearthestoppage. Replacethemagazine,move thewindingdevicelevertothe centerandcontinuetofire. SectionV:CareandCleaning 1.DEPENDABILITYANDACC- URACY.TheAmerican180will functionunderconditionsthat wouldcausesomeautomatic weaponstofail.However,itscon- tinueddependabiIityandaccuracy dependonitsreceivingproper careandcleaning.Thechamber andbore,receiverandmoving partsmustbekeptcleanandvery lightlyoiled.Thesamecaremust begiventhemagazine. 2.THEFREQUENCYOFCLEAN- ING.TheAmerican180requires thoroughcleaningafter2000 rounds.Forthisyoucandisas- sembletheweaponasdescribed. Priortoreassembling,allfunc- tionalpartshavetobeverylightly oiled.