Sa VZ58 Operators Manual

8/4/2019 Sa VZ58 Operators Manual

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Sa vz. 58 Military RieInstructions Manual


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Content:

Part I. Description of the design of the Sa vz. 58 Military Rie.......... 3

Chapter 1 General 1.Purposeandpropertiesoftherie 2.Characteristicsoftherie

3. Markings

Chapter 2 Description of the main parts of the rie1. Barrel2. Receiver3. Bolt4. Trigger mechanism5. Stock and handguards

Chapter 3 Accessories1. Magazine2. Sling3. Cleaning kit4. CD

Chapter 4 Ammunition1. Types of ammunition2. Loading of magazines

Part II. Functioning of the rie and troubleshooting, storage,inspections, maintenance and repairs.................................... 21

Chapter 1 Functioning of the parts and mechanisms of the rie 1.Preparingtherieforshooting

2. Functioning of the parts

Chapter 2 Troubleshooting1. General rules for preventing malfunctions2. Typical malfunctions, their causes and solutions

Chapter 3 Storage 1.Storingtherie

Chapter 4 Repairs

Part III. Zeroing of the rie................................................................... 40

2.


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PARTI.DescriptionofthedesignoftheSavz.58MilitaryRie

CHAPTER 1 - GENERAL

1. Purpose and properties of the Sa vz. 58 Military rie

TheSavz.58Militaryrie(hereinafteralsoreferredtoastherie)canonlyreinthesemi-automaticmode.Theringiseffectiveupto600metersatindividualgroundtargetsand800metersatgrouptar-gets. The sight is adjustable from 100 meters to 800 meters in 100 meters increments. Additionally, therear-sightleafisprovidedwithaU(universal)markforringatmovingtargets.TheRieisdesignedforsportsshootingaswellashunting.

Themaximumrangeofreis2,800meters.Themuzzlevelocityofthebulletsis705meters/secondanditseffectiverangeisthemaximumrangeofthegun.Theweightoftheriewithaloadedmagazineis3.80kg.

Theweightoftheriewithoutthemagazineis3.13kg.Thelengthoftherieis905mm.Anemptymaga-zineweighs0.17kgand0.67kgwhenloadedwith10rounds.

The barrel is pressed in to the receiver. In order to increase service life and corrosion resistance, the boreandthecartridgechamberarechrome-plated.Theboltandlockingpiecearechrome-platedaswell.

EachRieissuppliedwithaccessories.

2. Characteristics of the Sa vz. 58 Military rie

TheSavz.58Militaryrieisasemi-automaticriewhichisactuatedbythepressureofgasesonthepiston,thegasesbeingproducedinthebarrelthroughcombustionofthepowdercharge.Aportionofgasesenter-ing through the gas vent into the piston space causes the bolt to move automatically to its back position atthe moment of shooting. The bolt is returned to its front position by the pressure of the recoil spring.

Therieisofsimpleconstructionandeasytohandle.Whencorrectlymaintainedandused,itsringfunc-tionisreliableandsafeevenundersevereconditions,i.e.indust,rainoratlowandhightemperatures.Thetriggermechanismenablesittoonlyresemi-automatically.Therearsightisofafoldingleaftype.Duringring,thecartridgesarecontinuouslyfedfromadoublestack30roundmagazineofanarch-likeshape.Whendisassemblingtherieforcleaningandstoragepurposes,notoolsarenecessary.

Theweightanddimensionsoftherieallowittobeusedverycomfortablynotonlyatshootingranges,butalsowhenhuntinginwoods,mountains,andallotherkindsofterrain.

3.

Fig. 1 The Sa vz. 58 Military rie/generalviewfromtheleft/

PART I. Description of the design of the Sa vz. 58 Military


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3. Marking and numbering of the rie

Eachrieismarkedwiththeserialnumber,nameoftherie,caliber,countryoforiginandcodemarkof

theU.S.importer.

CHAPTER 2 - DESCRIPTION OF THE MAIN PARTS OF THE RIFLE

TheSavz.58Militaryriehasthefollowingmainparts

1. BarrelThebarrel1isintendedtodirecttheprojectile.Thebarrelisprovidedwithaborewithfourgrooveswhichproducesthefoureldsoftheriing.Thebarrelboretwistproducesarighthandhelixwithaconstantlead(thetwistoftheriing)of240mm,whichimpartsarotarymotiontotheprojectile.Theprojectilerotationensuresthattheprojectileinthecourseofitsightthroughtheairdoesnotchangeitspositionwithregardtoitslongitudinalaxis(trajectory)andisthusstabilized.Themuzzleisprovidedwithaninnerroundingofthetwistwiththeaimofexcludinganydamagetothetwist.Thediameteroftheboremeasuredbetweentwooppositeeldsisknownasthecaliber.ThecaliberoftheSavz.58Militaryrieis7.62mm.Inordertoimproveservicelife(toreducewear)andcorrosionresistance,theboreischrome-plated.Thebarrelispressedintothereceiverandlockedwithapin.

Intherearpartofthebore,thetwistpassesintoasmoothcartridgechamberwhoseshapeanddimen-sionscorrespondtothecartridgeincal.7.62mm.Thecartridgechamberpassesintotheriing(theriedpartofthebore)viathetransitionconewhichenablestheprojectiletograduallycutintothegrooves.Thecartridgechamberischrome-platedaswell.

4.

Fig. 2 The Sa vz. 58 Military rie has the following main parts1-barrel,2-receiver,3-bolt,4-triggermechanism,5-stock,6-magazine

12 11413

15

16

Fig. 3 Barrel assembly/generalview/

1-barrel,12-frontsightbase,13-barrelextension,14-gasadapter,15-frontswivel,16-lowerhandguardhoop

PART I. Description of the design of the Sa vz. 58 Military

53 2

1 6

4


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The external cylindrical surface of the barrel is stepped four times. Near the muzzle, on the barrel, is thepressedfrontsightbase12whichislockedbytwopins121and122inordertopreventturning(Fig.4).Infrontofthefrontsightbaseisthebarrelextension13attachedpermanentlytothemuzzle.Bar-relextension13isweldedtothefrontsightbase12bottomplate.

Barrelextension13(Fig.5)isofacylindricalshapeandisstrengthenedinitsrearpart.Insidethestrengthenedrearpartisthethreadusedforscrewingthebarrelextensionontothemuzzle.

Approximatelyatthehalfwaypointofthebarrellengthisaninsertedgas adapter14(Fig.6)whichislocked by means of the pin. In the upper part of the gas adapter is a cavity that forms the gas cylinder.Aportionofthepowdergasesisconveyedfromthebarrelthroughthegasadaptertothegascylinder.Thepowdergasesowtothegascylinderthroughthegaschannelwhichconnectstheborewiththegascylinderspace.Atthehalfwaypointofthelengthofthelowerpartofthegascylinderwall,twoopeningspointingobliquelydownwardalongbothsidesofthebarrelaredrilled.Thepowdergasesescapefromthegascylinderthroughthoseopeningsafteraroundhasbeenred;thepiston,movingbackwards,haspassedmorethanhalfthegascylinderlength.Ontheleft-handsideofthegasadapteristheeye(thimble)forthefrontswivel15(Fig.3).Bothsidesofthegascylinderfrontpartareprovidedwithlugswithgroovesinto

whichtheupperhandguardjackettipsaretoshift.Therearpartofthegasadapterformsacatchbywhichthelowerbarrelguardfronthoopisheld.Halfofthegascylinderupperwalliscutoffforshiftinginandoutof the piston.

Fig 5. Barrel extension/sideview/13-barrelextension

5.PART I. Description of the design of the Sa vz. 58 Military

Fig. 4 Front sight base/sectionalview/11-frontsight,111-frontsightpin,121and122-frontsightbasepins

11 111

122121

13


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Piston141(Fig.7)transmitsthekineticenergyofaportionofthepowdergasesproducedbythecombus-tionofthepowderchargeinthebarreltotheboltcarrier.Thefrontpartofthepistonhasacylindricalheadwithacircumferentialgrooveforbetterpackingofgasesinthegascylinderandfordepositionofburntpowderremainders.Therearpartofthepistonisthickenedandformsaguideforpistonspring142withitsoneendleaningagainstthefaceoftherear-sightbaserecessandwithitsotherendagainstthecollarofthecylindricalreinforcementwhich,togetherwiththestopintherear-sightbaserecess,limitsthepistonforwardmotion.Thetransitionofthecylindricalreinforcementintotheguidepartofthepistonisofaconi-calshape;thisconicalsurfacelimitspistonmotionbybearingagainstthecorrespondingsurfaceoftherearsight base. The piston spring causes the piston to return from the rear position once again to the startingposition(i.e.tothefrontposition).

Front sight11(Fig.4)togetherwithrearsight21formthesightsoftherieandareusedforaimingtherie.Thefrontsightisofacylindricalshape,providedwithathreadinitsbottompart,longitudinallycutandopened.Itisscrewedintothefrontsightpin111andthefrontsightthreadpartenablesittobeadjustedforheight.Afterscrewingthefrontsightintothefront-sightpin,theopenedpartsprings,thuspreventing the front sight from turning spontaneously.Front sight pin111isplacedcrosswiseintheupperpartofthefrontsightholderandisintendedfor

screwinginthefrontsightandforitssideadjustmentwhenzeroingin.

Fig. 6 Gas adapter/sectionalview/14-gasadapter,141-piston

142

141

Fig. 7 Piston with spring141-piston,142-pistonspring,143-pistonstop


14

141

143


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Thefrontsightholderisshapedinitsupperpartinordertoformacolumnandendswithfront-sightcoverwingsensuringthatthefrontsightisprotectedagainstdamage.Inthefacewallofthefront-sightbaseisahalf-roundrecesswhichuncoversthemiddlepartofthefront-sightpin.Onthefront-sightpinandontherecesswallaretwosightinggaugemarksthat,ifoppositeeachother,indicatethecorrectsidepositionofthe front sight. The correct position for the height of the front sight is locked by a drop of lacquer on thefrontedgeofthefrontsightandthefront-sightbase.

2. The receiver assembly

Thereceiver(Fig.8)isoneofthemainpartsoftherie;itjoinstheotherriepartstogetherasawholeand guides the bolt.

Itconsistsofthefollowingmainparts:receiverproper2,rearsight21,ejector22,boltcatch23,magazinecatch24,receivercoverpinsafetypin25,receivercoverpin26andlowerhandguardpin27.

Onbothsidesintherectangularrecessofthereceiverareguidinggrooves(a,b)alongwhichtheboltcar-rierandtheboltmove.Inthefrontthickenedpartofthebarsbarerecessesinwhichthelockinglugsofthelockingpiecesnapwhenlockingthebolt.Thefrontwallbetweentheguidebarsischamfered,thusformingtheramp(c)whichenablesthecartridgetobeeasilypushedintothecartridgechamber.Thebar-relisinsertedintothefrontpartofthereceiver.Inthemiddleofthereceiverisbridge(d)whichdividestheentireinnerspaceofthereceiverintotwoparts:thefrontmagazinewellandtherearrecessforseating

thetriggermechanism.Inthefrontmagazinewallisalugwhichengagesinthecorrespondingrecessintheupperpartofthefrontedgeofthereceivermagazinewell.

Rearsight(Fig.9)enablestheneededanglesofthetan-gentelevationtobeset;therearsightisxedintherearsightbase.Rearsight21(Fig.10)isassembledtogetherwithrearsightslide211,rearsightplunger212withspring 213 and rear sight feather 214.


25

2621

23

22

Fig. 8 The receiver assembly/topview/2-receiver,21-rearsight,22-ejector,23-boltcatch,25-receivercoverpin,26-receivercoverpinsafetypin,

a-guidinggrooves,b-lockinglugs,c-ramp,d-bridge

b ac

d

212211

Fig. 9 Rear sight assembly21-rearsight,211-slide,212-rearsightplunger,

214-rearsightfeather,a-rearsightbase

2

21214 a


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The rear sight baseformsonepiecewiththereceiver.Thesidesofthefrontelevatedpartareprovidedwithopeningsfortherearsightpins.Thesidewallsoftherearsightbaseformramps.Betweenthesidewallsisarecessforshiftingintherearsightfeather.Intherearpartoftherecessisadimpleforxingtherear sight feather.

Rear sight21isintendedforsettingtheslideinordertocorrespondtoanappropriaterange;itisofaplate-likeshape.Therearepins(a),onitsfrontnarrowedpart,bywhichtheleafisswinginglymountedinthe openings of the rear sight base. The rear sight leaf is inserted into the base by means of the rear sight

feather.AttherearendoftheleafistherectangularVnotch(b).Onthetopendoftheleafaregaugelineswithguresfrom1to8(theoddguresareontherightandtheevenguresontheleft)whichindicatetherangeofreinhundredsofmeters.Therearsightcanconsequentlybesetatadistancefrom100metersto800meters.Additionally,theleft-handsideoftherearsightleafisprovidedwithagaugelinemarkedU,universal,whichindicatesarangeofreupto300meters.TheUsettingcanbeengagedbyshiftingtheslide211totherearpositionuntilitstops.Ontheright-handsideoftheleafare9notchespointingobliquelydownwards.Therearsightplunger212lugengagesthesenotches,bywhichtheslideislockedinthesetposition.Thedimpleinthefrontnarrowedpartoftherearsightleafisdesignedforthepointedendofthefrontsightspannerwhichisusedfordisassemblingtherearsight.

Slide 211 of the rear sight is slipped over the rear sight leaf. In the middle part of the slide is a rectangular

windowthroughwhichtheslidecanbeslippedovertherearsightleaf.Theinsidecylindricalcavityintheslideisintendedforbearingplunger212withspring213.Thebottomsideoftheslideleansonandmovesalongthesightramps.Theright-handsidesurfaceofthesteppedpartoftheslideisannularlyknurledandisintendedtoserveasarestforthengerwhendepressingtheplungerforsettingtherangeofre.Theslide is held in the desired position by the plunger.

Rear sight plunger 212 locks the slide in the set position by snapping the chamfered lug of the plungerintheappropriatenotchontheright-handedgeoftherearsightleaf.Theplungerlugisheldinthenotchontherearsightleafbythepressureoftheplungerspring.Thespringisseatedinthecavityoftheslide;withitsoneendleaningontheslideandwiththeotherendagainstthelateralsideoftheplunger.The

plungerisprovidedwithadeeprecesswhosesurfacelockstheplungerinasteadypositionontherearsightleaf;thisatrecessguidestheplungeralongthebottomsideoftheleaf.Theplungermaybedis-placed after pressing the knurled lateral surface.

211

21

213

212

214

Fig. 10 Rear sight/explodedview/21-rearsight,211-slide,212-rearsightplunger,213-rearsightplungerspring,214-rearsightfeather,

a-sightpins,b-sightnotch

a

b


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Rear sight feather214withitsfrontendpressesthebottomsideoftherearsightinfrontoftheleafpinssothattheslideisconstantlyforceddowntotherearsightramps.Therearsightfeatherisshiftedwithitsrearendintothegrooveintherearsightbasetherebypreventingverticalmotionoftherearendofthefeather.Whenthefeatherisshiftedin,thestampeddimpleattheendofthefeatherengagesthedimpleintherearsightbase,whichpreventsforwarddisplacementofthefeatherwhentheleafisbeingput on.

Ejector 22 is placed in the grooves in the upper part of the bridge. The ejector is locked against shifting

out by means of the dimple. The face surface of the ejector is chamfered so as to ensure that the contactoftheejectorwiththebaseofthecartridgecaseisalmostone-pointandontheleftoftheverticalaxisoftheringpinwhenthecartridgeisejected.Thisguaranteesthatthedirectionoftheejectionofthecar-tridgecaseejectedfromtherieiscorrect,i.e.upwardsandtotheright.

Ontheright-handsidefromtheejector,thebolt catch23issituated.Afterringthelastcartridgefromthemagazine,theboltcatchretainstheboltintherear(open)position.Thebottompartoftheboltcatchisdividedbyarecessintotwobranches;theshorteroneiscontrolledbythemagazinefollowerlugandthelongerone(withthecrossknurling)isintendedformanualshiftingoutoftheboltcatch,thusholdingtheboltintheopenedpositionifthisisnecessaryforinspection,cleaning,repairsorotherreasons.Whentheboltismovingforward,itmakescontactwiththecylindricalpartoftheboltcatch.Oncethepressurefrom

theboltcatchisremoved(whenthemagazineistakenoutofthereceiver)andtheboltmovedslightlybackwards,boltcatchspring231pushestheboltcatchbackintothereceiverthusdisengagingitfromthebolt.


231

23

241

243

24

242

Fig. 11 Receiver components23-boltcatch,231-boltcatchspring,24-magazinecatch,241-magazinecatchpin,242-magazinecatchspring,

243-magazinecatchpinsafetypin,e-lug

e


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Frombelowontheleft-handsideoftheejector,onpin241istheswinginglyseatedmagazinecatch24whichkeepsthemagazineinsertedinthereceiver,thuspreventingitfromfallingout.Themagazinecatchisprovidedwithalugwhich,throughactuationofspring242,snapsinbehindthelugontherearedgenearthemagazinefeedlips.Withitsoneendthespringisseatedinthepocketofthereceiverbridgewhilethe other end bears on the cylindrical recess of the magazine catch.

Pin 241 is common for both the magazine catch and the bolt catch. It is locked against loosening by safe-typin243whichislongitudinallycutupandopened.Atthelongerendofthecut-uppartisexternallug(e)whichsnapsinbehindtheedgeoftherecessintheupperwallofthereceiverbridge.Thesafetypinwithitscylindricalparttsintothecircumferentialgrooveonpin241.

Inthebottomofthereceiveraretworectangularopenings.Thetriggerpassesintotherstonewhilethe

otherisdesignedforseatingtheshapednutofthegripscrew.Trigger guard 28 is riveted to the bottomofthereceiver.Therearwallofthereceiverisprovidedwithathreadforxingthestocktothereceiversrearfaceandadditionallywithagrooveforxingthereturnmechanism.Thepositionofthesteppedreturnmechanismislockedbyreceivercoverpin25(Fig.8)whichiskeptinpositionbytheforceofreceivercoverpinsafetypin26whichpressesagainstthetwocircumferentialgroovesofthereceivercoverpin.Receivercoverpinsafetypin26ismountedverticallyinthewallofthereceiverrearright-handcornerandis pushed by the rear arm of the trigger mechanism feather.

3. Bolt assembly

Theboltmakespossibletheactionoftherie;pushingthecartridgesfromthemagazineandinsertingthemintothecartridgechamber;lockingthecartridgechamberatthemomentofring,ignitingthecar-tridgeprimer,pullingoutandejectingtheredcartridgecase.

Theboltassemblyhasthefollowingparts:theboltcarrier,bolt,lockingpiece,andstriker.

Bolt carrier35(Fig.13)actuatesthebolt,thelockingpieceandthedisconnector.Thefrontwalloftheboltcarrierisprovidedwitharecessagainstwhichthebottompartofthepistonstrikesatthemomentofring.Ontheright-handsideoftheboltcarrieriscockingleverawhichisdesignedforhand-operatedcockingofthebolt.Bothsidesoftheboltcarrierareprovidedwithguidegrooves(b)whichareinterruptedataboutthehalfwaypointbyarecesswhoseshapecorrespondstothecorrespondinglugsinthereceiver.

Thisrecessisintendedforinsertingtheboltcarrierinthereceiverandfortakingitoutagain.Therearwalloftheboltcarrierisprovidedwiththreelongitudinalopenings.Thetopopeningismadeinordertohousethereturnspringwhiletheothertwoopeningsaredesignedtolowertheweightoftheboltcarrier.


Fig. 12 Bolt catch and magazine catch/sectionalview/23-boltcatch,241-magazinecatchpin,24-magazinecatch

23241

24


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Thebottompartoftheboltcarrierhasarecesswhichisdividedintotwopartsbypartitionwall(c).Thepartitionwalltogetherwithunlockingtip(d)controlthemotionofthelockingpiece.Theunlockingtipformedinthefrontpartpullsthelockingpiecefromthelockedposition.Theunlocking-tipbottomsurfaceformsguideforthebolt.Boltcarriershaft(e)providedwithanopeningforthestrikerissituatedinthebottomrearpartoftheboltcarrier.Whendisassemblingandassemblingthebolt,thestrikerislockedagainstfalling-outbyalugwhichprojectsfromtheleft-handsideintotheopeningforthestriker.Boltcarriersideplate(f)actuatesthedisconnector.

Locking piece36(Fig.13)ensurestheproperlockingofthecartridgechamber.Itisofhorse-shoeshape;botharmsofthelockingpiecepassattheendsintojoints(m)bywhichthelockingpieceisswinginglycar-

riedintheboltbearings.Inthefrontbottompartofthelockingpiecearesituatedlockinglugs(n)which,whenthelockingpieceisinalockedposition,transmitthepressureproducedatthemomentofringtothe receiver.

Striker37(Fig.13)strikesagainsttheringpin.Itisofahollowcylindershapeclosedatitsfrontendbyasmoothfrontwallcomingintocontactwiththeringpin.Therearopenendhasaheadprovidedwithgroovesbywhichthestrikerisguidedalongthebarsinthereceiver.Thestrikerheadiselongateddown-wards,thusforminganose(o).Thecylindricalpartofthestrikerisreliefedalongtheperipherybymeansofsixlongitudinalgrooves.Thegrooveontheleft-handsideofthestrikerisclosedonitsfrontsideandiselongatedbackwardsasfarasthestrikerhead.Thegrooveisguidefortheprojectionoftheboltcarrier.Theprojectionpreventsthestrikerfromfallingoutoftheboltcarrier.Thisclosedgrooveisjoinedwiththe

neighboringlongitudinalgroovebymeansofacrossgroovewhichenablestheprojectionoftheboltcar-riertopasstotheclosedgroove.Strikerspring382(Fig.17)isinsertedwithitsoneendintothecylindricalcavity of the striker.

Bolt3(Fig.14)isprovidedinitsfrontwallwithabedwithacentricopeningforthecartridgebase.Movingfreeinthisopeningisringpin31(Fig.14).Extractor32withitsclawreachestheedgeofthecartridgecasebed.Thebottomedgeofthecartridgebasebedisboundbyramminglugs(i)(Fig.13)whichpushthe cartridges out from the magazine into the cartridge chamber. The ejector passes through the groovebetweentheseramminglugswhentheboltismovingbackwards.Therecessontheright-handfacewallformsastopfortheboltcatch.Theboltisguidedinthecarrierbygrooves(j)whichareinterruptedonbothsidesoftheboltbytherecessintendedforthelockingpiecewhichiscarriedswinginglyinsemicircu-

larbearings(k)(Fig.15).Theboltisprovidedwithanopeningforthestrikerattheback.

37

Fig. 13 Bolt assembly3-bolt,35-boltcarrier,36-lockingpiece,37-striker,

a-cockinglever,b-guidegrooves,c-partitionwall,d-unlockingtip,e-boltcarriershaft,f-boltcarriersideplate,i-ramminglugs,

k-bearings,m-joints,n-lockinglugs,o-strikernose


3

35

36

a

bcd

e f

i

k

m

n

o


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Fig. 14 Bolt/disassembled/3-bolt,31-ringpin,32-extractor,33-extractorspring,

34-extractorstay,j-grooves

Firing pin31(Fig.14)ignitesthecartridgeprimer.Itismountedinthebodyofthebolt.Theringpinispreventedfromfallingoutbytheextractorbottompartwhichreachesthegrooveintheringpinandthusalsolimitsthereturnmotionoftheringpin.Theringpinforwardmotionislimitedbytheconicalsurfaceoftheringpinwhichbearsagainstthecorrespondingsurfaceintheboltbody.Thethickenedrearendoftheringpinprojectsintothecavitydesignedforthestrikerandisreliefedbythreeexternallongitudinalgrooves.

Extractor32(Fig.14)extractstheredcartridgecasefromthecartridgechamberbymeansofaclawwhich,pressedbyextractorspring33,snapsintothegrooveofthebaseofthecartridgecase.Theextrac-torspringisseatedinthecavityoftheboltandpressesagainststay34whichinturnactuatestheextrac-tor.

Thereturnmechanism(Figs.15)makestheboltreturntotheextremefrontposition.Itconsistsofreturnmechanismbase38withreceivercover381,strikerspring382,strikerspringguide383,returnspring384,returnspringguide385andreturnspringlockingblock386.

Return mechanism base 38 unites all the parts of the return mechanism in order to form one unit. Thebaseisrivetedwithreceivercover381.Thebaseisformedbyaplatetowhichreturnspringguide385andstrikerspringguide383arexed.Intherearwallofthebaseisaprojectionbymeansofwhichthereturnmechanism base is positioned in the recess in the rear part of the receiver. In order to prevent the receiverfromfallingout,thebaseislockedbyreceivercoverpin25(Fig.8).

Fig. 15 The return mechanism38-returnmechanismbase,381-receivercover,382-strikerspring,383-strikerspringguide,384-returnspring,

385-returnspringguide,386-returnspringlockingblock

381385

384

386

38238338


331

32

33

34

j


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Receivercover381isastamprivetedwiththebase.Itcoverstherearpartoftheriesreceiver.

Striker spring382throwsthestrikeragainsttheringpin.Itisplacedonstrikerspringguide383whichispivotedonthereturnmechanismbaseandallowsamilddouble-sidedwobbling.Thestrikerspringguideisprovidednearthebasewithgrooveinwhichtheturnofthestrikerspringsits.Bothendturnsofthestrikerspringhavetheirdiametersreducedsothatthestrikerspring,regardlessofwhichofitsendshasslipped over the guide, cannot be shifted out spontaneously.

Striker spring guide383isasteelrodwhichsupportsstrikerspring382.

Return spring 384 makes the bolt return to the front position. It is placed over return spring guide 385.Theguideismadeofsteelwireanditsbentendsengagethenotchonthereturnspringlockingblock386.

Return springguide385consistsofastickandawire.Thestickisxedinthereturnmechanismplatebymeansofacrosspinwhichallowsamilddouble-sidedwobblingofthestick.

4. The trigger mechanism

Thetriggermechanismmakesringpossibleandisprovidedwithadevicelockingtherieagainstsponta-neousre.Itissituatedintherearrecessofthereceiverontwopins.

Thetriggermechanism(Figs.16and17)hasthefollowingparts:trigger4,triggerpin41,disconnector42,disconnectorspring43,disconnectorpin44,sear45,searpin46,triggermechanismfeather47,safetycatch48andsafetycatchholder49.

Trigger 4 is pivoted in the receiver on pin 41 and controls the release of the striker through the sear. Therearpartofthetriggerngerpieceprojectstoformprojection(a)whichwhenleantagainstthereceiver,restrictsbackwardmotionofthetrigger.Inthetoppartofthetriggerisacut-outinwhichdisconnector42isseatedondisconnectorpin44(Fig.18).Intherearpartofthetriggerisanobliquebedfordisconnector

spring 43.

41

4 45

d c

Fig. 16 Trigger mechanism/inreceiver/4-trigger,41-triggerpin,42-disconnector,45-sear,47-triggermechanismfeather,c,d-triggermechanism

feather arms.


42

47


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By means of the lug, disconnector42lowerssear45,bypullingitsprojection(b)(whenthetriggerissqueezed,ifthesafetycatchissetinthereposition).Thelugprojectsontheright-handsideofthefreeendofthedisconnector.Thedisconnectorispivotedonpin44inthecut-outofthetrigger.Onthetopofthedisconnectorisaprojectionwhichiscontrolledbytheleft-handsideboltcarriersideplateduringitsbackwardmotion.Inthebottompartitisprovidedwitharecessagainstwhichdisconnectorspring43leanswithitsoneend.Theotherendofthedisconnectorspringisseatedinthetriggerbed.Thediscon-nectorspringpushesthedisconnectorsoastomakeitcomeintocontactwiththesafetycatch.

46

48

47

dc

4

44

47

42

41

a

43

e

Fig. 17 The trigger mechanism/disassembled/4-trigger,41-triggerpin,411-triggerpine-clip,42-disconnector,43-diconnectorspring,

44-disconnectorpin,45-sear,46-searpin,461-searpine-clip,47-triggermechanismfeather,48-safetycatch,49-safetycatchholder,491-safetycatchholderspacer,

a-triggerprojection,b-searprojection,c,d-triggermechanismfeatherarms,e-safetycatchwing


45

49

b

Fig. 18 The trigger mechanism/sectionalview/28-triggerguard,44-disconnectorpin

28

44

491

411

461


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Thesearispushedintoengagementwiththenoseofthestrikerbythetrigger mechanism feather47arm. The feather is mounted on the bottom of the recess of the receiver. It is locked by the rivet of thetriggerguardrearendonwhichthetriggermechanismfeatherisplacedwithitscircularopeninginordertopreventlongitudinaldisplacement.Itissideguidedbythescrewnutofthegrip.Arm(c)ofthefeatherpressesreceivercoverpinsafetypin26whilethebentendofarm(d)snapsintherecessofthesafetycatch,thuslockingitsposition.Thedimpleonarm(d)isintendedforsupportingthepointedendoftheneedlefromaccessorieswhentakingoutorinsertingthesafetycatch.

Safety catch48enablesringandpreventsunintendedring.Itisacylinderprovidedwithwing(e)

atoneofitsends.Thecylindricalpartofthesafetycatchisprovidedonitslefthandsidewithacuttingplacedoppositethedisconnector.Thus,whenthewingofthesafetycatchisintheFireposition,i.e.pointingforward,thedisconnectorslidesintothecutting,raisesupandengagesthesear.When the wingis in the vertical position lockedthecuttingis90degreetothedisconnector,whichisthuspusheddownbythecylindricalpartofthesafetycatchandoutofreachofthesear.Safety catch holder49,whichisplacedonthesearpin,preventsthesafetycatchfromfallingout.Thecylindricalpartofthesafetycatchisprovidedwithlongitudinalgroovesinwhichthebentendofthetriggermechanismfeatherarmsnaps,whenthesafetycatchchangesitsadjustment.

5. Stock assembly and handguards

TheSavz.58Militaryriehasastockassembly(Fig.19)whosemainpartsarexedwoodenstock5.Stock

5elongatestherieandenablestherietobecorrectlyrestedagainsttheshoulderwhenring.Through the opening in its front part passes stockscrew52bymeansofwhichthestockisxedtothereceiver. Rear swivel51issituatedontheleft-handsideofthestockandispivotedonholder511oftherearswivel.Therearswivelholderisplacedonrear swivelbase512whichismountedinthebedofthestock.Therearswivelispreventedfromfallingoutbystockscrew52.

Fig. 19a Stock/disassembled/5-stock,51-rearswivel,511-rearswivelholder,512-rearswivelbase,52-stockscrew,521-stockscrewwasher,522-stockfrontplate,523-buttplate,524-buttplatescrew


54531

53 57

521 52 51

523 524511

512

522 5

Fig. 19b Grip/disassembled/

53-gripscrew,531-gripscrewwasher,54-gripnut,57-grip


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Thegripisxedtothereceiverbystockgripscrew53andbystockgripnut54whichisseated intherecessofthereceiverbottom.Thegripscrewheadiscountersunkinthegripandbearsagainstwasher531.

The handguardsmakeitpossibletoholdtheriewiththelefthand;theyaremadeofwoodrandcoverportionofthebarrelandprotecttheriemanshandagainstheatwhenring.

Thefronthandguardsconsistsoftheupperandlowerhandguard.

The upper handguardassembly(Fig.20)coversthebarrelfromthetop.Itconsistsofwoodupperhandguard55,metaljacket551,upperhandguardpin552,upperhandguardpinpawl553, upperhandguardpinpawlspring554,upperhandguardholder555.

Frontpartofhandguardmetaljacket551isprojectedtoformtipsabymeansofwhichthehandguardsnapsintothegroovesofthegasadapter.Upperhandguardholder555issituatedinthemiddleofthejacketandisthemetalpiecebymeansofwhichhandguardguard55islockedagainstturning.Projection(b)inthefrontpartofthehandguardformsaguideforthepistoninsteadofthecut-offupperpartofthegascylinder.Rearpartofthehandguardjacketisprovidedwithtwoprojections(c)throughwhichupperhandguardpin552passes.Thepocketforpinpawlspring554andpinpawl553issituatedintheright-

handprojection,whichwhenpressedbythespring,snapsintothecircumferentialgroovesonthehand-guardpin.Inthisfashionthehandguardpinislockedagainstfallingoutfromtheright-handprojectionwhenremovingthehandguardofftheweapon.


Fig. 20 Upper handguard55-upperhandguard,551-upperhandguardmetaljacket,552-upperhandguardpin,553-upperhandguardpinpawl,554-upperhandguardpinpawlspring,555-upperhandguardholder,a-tips,b-projection,c-projections

55551

552

553554

555

a

b c


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Lower handguard56(Fig.21)ismadeofwoodandcoversthebarrelfrombelow.Thefrontendofthelowerhandguardisshiftedinlowerhandguardfronthoop16whichisslippedoverthebarrelandsnappedinbythegasadapterlug.Therearendofthelowerbarrelguardisxedtothereceiverbypin561.Bothends of the pin are riveted over.

Fig. 21 Lower handguard(56-lowerhandguard,561-lowerhandguardpin,562-lowerhandguardspacer)

CHAPTER 2 - ACCESSORIES and THEIR DESCRIPTION

1. Accessories

EachRieisprovidedwiththefollowingaccessories:

-one30rdmagazine6-sling8

-cleaningkitbag9-cleaningrod(two-part)91-oakumcleaningrod92-horsehairbrush93-oilcan94-needle95-promotionalCD98


56562

9 91

92

939495

8

Fig. 22 Accessories

6-magazine,8-sling,9-cleaningkitbag,91-cleaningrod,92-oakumcleaningrod, 93-horsehairbrush,94-oilcan,95-needle,98-promotionalCD

6

98

561


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Fig. 23 Magazine/disassembled/6magazinebody;61magazinefollower;62magazinespring;63magazinesafety;

64magazineoorplate;a,bprojections,c,d-rim


6

61

62

63

64

a b

c

d

2. Accessories description

1. Magazine6(Fig.23)isdesignedforcontinuousloadingoftheriewithcartridgesduringring.Itisofanarchedshapeandtakes30cartridges.Itconsistsofmagazinebody6,magazinefollower61withmagazinespring62,magazinesafety63andmagazineoorplate64.

Magazine body6ismadeofspecialaluminiumalloy and forms a box for the cartridgesandpolymermagazinefollowerwithaspring.The case opens at both ends.Thesidewallsareprovidedwithrailsintendedfor guiding both the cartridges in the magazineandthemagazinefollower.Themagazineheadisprovidedwithprojections(aandb)onthefront and rear edges in order to hold themagazineinthereceiver.Themagazineshead

isprovidedwitharim(c)whichrestrictsthedepth of its insertion into the receiver.Theloweredgesofthesidewallsofthemagazinecasearealsoprovidedwithrims(d)ontowhichmagazineoorplate64istted.

Magazine follower61ismadeofplasticandpushes the cartridges into the magazine feedlipsthroughtheactionofmagazinespring62.Therearwallofthemagazinefollowerispro-videdonitsrighthandsidewithaprojectionforliftinguptheboltcatchafterhavingred

the last cartridge from the magazine.

Magazine spring62pushesthefollowerintothemagazinefeedlips.Itismadeofstrongsteelwirewhichhasoneofitsendshookedunderthemagazinefollowerbottom.Theotherendofthemagazinefollowerspringisheldbythesidesofmagazinessafety63.

Magazine safety63locksthemagazineoorplateagainstspontaneousshiftingout.Itssidesarebenttoholdthemagazinespringandinthemiddleisprojectionwhichsnapsintotheopeningofthemagazineoorplate.

Magazine oorplate64ismadeofplasticandclosesthemagazinefrombelow.Ithasaroundopeningin the middle for the projection of the magazine safety.


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3. Sling8makesitpossibletocarrytherie;itis1,220mmlongand26mmwide.Asmallbuckleissewedontooneendoftheslingbywhichtheslingmaybeshortenedorextended.Attheotherend,theslingisprovidedwithasewed-onleatherfasteningstrapwithanopeningfortheconnectingbutton.Whenxingtheslingtotherie,leatherfasteningstrapmustberstpulledthroughtherearswivel,thenthroughthesmallbuckleandthentheleatherstrapshouldbepulledthroughthefrontswivelontheassaultrieand the connecting button should be buttoned up.

4. Cleaning kit bag9ismadeofstrongtextilematerialandisdesignedtoholdallthecleaningaccesso-

riesaswellasneedle95.

Cleaning rod91isintendedforcleaningandlubricatingtheboreandthecartridgechamber.Thecleaningrodconsistsoftwoparts,1and2,whichmustbescrewedtogetherinordertoformonepiecebeforeitisused.Oneendoftheupperpartofcleaningrod1isprovidedwithathreadtowhicheitheroakumcleaningrod92orhorsehairbrush93canbeattached.Thelowerpartofcleaningrod2isprovidedatoneendwithanannulargroovethroughwhichtheneedleispushedaftershiftingthecleaningrodintheopeningoftheplugofoilcan94.Inthisfashionthecleaningrodcanbeturnedalongthegroovesinthebarrel.

Oakum cleaning rod92isdesignedforcleaningtheboreandthecartridgechamber.Oneendoftheoakumcleaningrodisprovidedwithathreadtobescrewedintothecleaningrod(whencleaningthebore)

orintotheoil-canplug(whencleaningthecartridgechamberorthegascylinder).Theotherendispro-videdwithacut-outthroughwhichapieceofragcanbeplaced.Themiddlepartoftheoakumcleaningrodisprovidedwithasquarethreadinterruptedwiththreelongitudinalgrooves.Theoakumistobewoundaroundthisthreadwhencleaningtheboreandthecartridgechamber.

NOTE:Oakumcanbefoundataplumbingsupplystoreandisexcellentforcleaningthebore.Itisusedbyseveral armies in Europe.

Horsehair brush93isusedforcleaningandoilingthebore,thecartridgechamberandthegascylinder.Thebrushhasaneckprovidedwithathreadbymeansofwhichitisscrewedintoeitherthecleaningrodortheoil-canplug.

Oil can94isaroundsmallvesselforkeepingthegunoil.Theoilcanneckisprovidedwithaninternalthreadforscrewingontotheoilcanplug.

The oil can plug has three openings. The longitudinal opening is designed for the end of the cleaning rod.Thecrossopeningisdesignedforhousingtheoakumcleaningrodorthehorsehairbrushwhilecleaningthecartridgechamber.Thelast(cross)openingisforxingneedle95.Theunscrewedplugwiththekeythen serves as the cleaning rod handle.

Needle95isusedwhendisassemblingandcleaningtherie.Someneedleshavespannerlikeopeningsintended for adjustment for the height of the front sight.

5. Promotional CD98includesamongtheotherallimportantinformationonSavz.58Militaryrie.


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CHAPTER 4 - AMMUNITION

1. Types of cartridgesOnly7.62x39mmcartridgesmaybeusedintheSavz.58Militaryrie.Theyshouldonlybeofexcellentqualityandmanufacturedbyacompanyknownfortheirqualitycontrol.

Cartridgeswithrustyspotsonthemmustbewipedwithadrycloth.Cartridgeswhichhavebeenunpacked

foralongertimemustbewipedwithadryclothbeforeloadingthemagazine,andcheckedforlengthandturningofthebullets.Whensomecartridgesareinuseandfrequentlyrammedintomagazinesforalongertime, loosening of the bullet in the cartridge case neck, possible pushing in of the bullet into the cartridgecaseorturningofthebulletmayoccur.Inthesecases,thewater-tightnessandoil-tightnessofthecar-tridgesaredecreased.Cartridgeswithpushed-inorturningbulletsmustnotbeused,butdisposedaccord-ingtovalidregulations.Neverusedefectivecartridgesforring(thoseconsiderablyrusted,withdamagedcartridgecasesorbullets,withadamporoiledpowderchargeorwithbulletspushedinthecartridgecasesandthelike).

Neverstrikethecartridge,primerorbulletwithahammerorotherhardobjects.

2. Loading the magazine

Themagazinecanbeloadedbyhand(Fig.24).Beforeloading,themagazinemustbewipeddry.

Whenloadingthemagazine,itshouldbetakenoutoftherieandheldinonehand.Thecartridgesmustbeplacedbytheotherhandonthemagazinefollowerandpushedintothemagazinebythumbofthehandholding the magazine. Each of the next rounds is placed on to the previous round, but pushed into themagazinebodyinthesamemannerastherstround.


Fig. 24 - Loading the magazine


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PARTII.FunctioningoftheRieandTroubleshooting,Storage,Inspections,Maintenanceand Repairs

CHAPTER 1 - FUNCTIONING OF THE PARTS AND MECHANISMS OF THE RIFLE

1. Preparing the rie for shooting

Beforeringariewhichhashadalayerofvaselineappliedforalongorshort-termperiod,itmustbecleanedandthepreservingagentremoved.Theriemustbethendisassembledandallpartsallwipeddry.Afterwards,theassembledrieshouldbepreservedwithaqualitygunoil.

Directlypriortoring,wipedrytheboreandthecartridgechamber.

Whendisassembling,cleaningandassemblingtherie,allthecomponentsshouldbeinspectedandcheckedtoseewhethertheyareworntoanexcessivedegree,battered,brokenordamagedinsomeotherway.Whenassembling,thefunctioningoftheparticularmechanismsshouldbechecked.Specialattentionshould be paid to checking the functioning of the assembled trigger mechanism, the reliable functioning of

the safety catch, to the disconnector, to the sear and the condition of the magazine.

Aftercompletelyassemblingtherie,thefunctioningoftheboltshouldbecheckedbyhandcocking.Properfeedingischeckedbychargingtheriewithafewpracticeroundsfromthemagazine(byhandcocking).

Therieismadereadyforringbyinsertingtheloadedmagazineintothemagazinewellofthereceiverandcockingthegunbymovingtheboltintotheextremerearpositionfromwhichitisreleasedwithoutholdingthebolthandleanylongerorbymovingtheboltforwardbyhand.Duringthisoperationthengermustbeoffthetrigger.Thesafetycatchshouldbeturnedintoitsforward(re)positiononlypriortoring.

21.FunctioningoftheRieandTroubleshooting,Storage,Inspections,MaintenanceandRepairs

Fig. 25 Position of the parts in loaded rie


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2. Functioning of the rie parts

Firing

Onemayopenreatanobjectaftersettingtherearsighttoanappropriaterangeofreandafteradjust-ingthesafetycatchwingintothereposition,i.e.forward.

Whenturningthesafetycatchwingintothepositionforring,thesafetycatchengagesthedisconnector,

byputtingitintothesafetycatchgroove,withthesear.Thedisconnector,whichisbeingconstantlypushedupbyitsownspring,hooksthesearandcontrolsitsloweringandlifting.

Bysqueezingthetriggertowhichthedisconnectorispivoted,thesearisloweredandthestriker,whichisunderthepressureofitsspring,isreleased.Thestrikerthushitsagainsttheringpinwhichinitiatesthecartridgeprimerinthecartridgechamber.Thecombustionofthepowderthatfollowscreatesgases,thepressureofwhichsendsthebulletintothebarrel.Assoonasthebulletpassesthegaschannelofthebarrel,aportionofthepowdergases,penetratesintothegascylinder,whereithitsthepistonhead,thussettingitinabackwardsmotion.Thepistonstrikesthefaceoftheboltcarrierthussendingittoitsrearposition. The piston is, nevertheless, retained by bearing its conical surface against the face of the recessand returned by the piston spring to the original position. At this time, the bullet has already left the barrel

andthepressureinthebarrelhasdecreased.Withitsunlockingtip,theboltcarrierthenpullsthelockingpiece from the locked position. The locking piece folds into the recess in the bolt carrier over the unlock-ingtip.Fromthismomenton,allthecomponentsoftheboltmovetogetherbackwards.Thebeginningofthemotionoftheboltcoincideswithbeginningtheextractingoftheredcartridgecasefromthecartridgechamber.Theredcartridgecaseispulledbytherimofthebasebytheextractorclawuntilthemomentwhenthebottomrimofthecartridgecasebasestrikestheejectorandthecartridgecaseisthrownoutoftheriesreceiverupwardstotheright.

Meantime,boltcarriersideplaterunsontothedisconnectorsluganddepressesthedisconnector,thusdis-engaging it from the sear so that the sear is lifted up through the action of the arm of the trigger mecha-nism feather even if the trigger is squeezed.

Assoonastheboltmovingbackwardshasruntoitsextremerearposition,theboltcarrierstrikesagainstthereturnmechanismbase,stopsitsmotionandthewholeboltassemblythenreturnstoitsfrontposition,beingactuatedbythereturnspring.Thestrikerbeingdrivenbythestrikerspringcatchesthesearwithitsnose. The ramming lug of the bolt pushes the top round out from the magazine feed lips and rams it intothecartridgechamber.Thebaseofthecartridgecasebearsagainsttheboltheadpocket,atwhichtheextractorclawsnapsintothegrooveofthebaseofthecartridgecase.Duringtheboltcarriersforwardmo-tion, the locking piece falls into the receiver lugs and locks its position.

Inordertorethenextshot,itisnecessarytoreleasethetriggerandsqueezeitagain.

Theriemaybelockedagainstanunintendedshotbyadjustingthewingofthesafetycatchintotheverti-

calposition.Wheninthisposition,thesafetycatchdisengagesthedisconnectorfromthesear,preventingitfromloweringandthusreleasingthestriker.Inthisfashiontherieisnotcapableofringiftheriessafety is in the locked position.

Thismodeoflockingdoesnotinanywayrestrictthenormalfunctioningoftheotherpartsoftheboltwiththeexceptionofthestriker.Itisconsequentlypossibletoloadaswellasunloadthecartridgefromthechamberwhentheweaponislocked.


23/42


Ceasingre

Ceasingremaybetemporaryorpermanent.

Firingistemporarilyceasedautomaticallyaftereveryshot,regardlessofwhetherthetriggerisreleasedorsqueezed;thenextsingleshotmayberedonlybysqueezingthetriggeragain.

Afterringthelastcartridgefromthemagazine,theboltremainsintherearposition;afterre-placingtheemptymagazinewiththefulloneandpullingtheboltcarrierbackwardsbyitscockinglever,theboltcatchisreleased(forthefollowerpushingthecatchupisdowninthemagazineagain)andringmayberesumed.

Incaseoftemporaryinterruptionofre,theriewillbelockedagainstanunintendedshotbyturningthewingofthesafetycatchdownwards,asthecartridgechamberhasacartridgeinsideitand the striker is in the rear cocked position. Firing may be reopened immediately after adjustingthesafetycatchwingintoFireposition.Terminationofringandunloadingtherie

Afterterminatingre,theriemustbelocked.Whenunloadingtherie,takeoutthemagazine(Fig.27)andthroughcockingthebolt,ejectthecartridgefromthecartridgechamber.Thenad-justthesafetycatchwinginthepositionFire,pulltheboltbyitscockingleverbackwardsandwiththetriggerbeingsqueezed(releasingthestriker),lettheboltgotothefrontposition(toreleasethestrikerspring).Thenre-locktheassaultrie.Taketheremainingcartridgesoutofthemagazineandslidetheemptymagazineintotherie.

CHAPTER 2 - TROUBLESHOOTING

1. General rules for preventing malfunctioning

Therieisareliabletrouble-freerearmifcorrectlyhandled,carefullyoperatedandmaintained.Nevertheless,iftherieisexposedtolong-lastingactivity,troublesinringmayoccurduetowearorbreakstosomeofthecomponents,duetodirtintheriemechanisms,defectivecartridg-es,carelesshandlingorinsufcientmaintenanceoftherie.Theabove-mentionedcircumstancesaffectthenormalfunctioningoftherieandcanresultinmalfunctionsandtroubleswhenring.

Mostmalfunctionsandtroubleswhichoccurwhenringtheriemaybeeasilysolvedbysimplerepeat-ingpullingtheboltcarrierbythecockinglevertoitsrearposition;ifamalfunctionisnoteliminatedbyrepeatingor,ifeliminated,itre-occurs,itisnecessarytounloadtherieandndthereasonbehindthemalfunction.


24/42

In order to prevent malfunctions in ring, it is necessary:

-tostrictlyfollowtheinstructionsregardingmaintenance,disassembling,assembling,cleaning, inspectingandpreparingtherieandcartridgesforring;-toprotectthecomponentsandmechanismsoftheriefromdirt;-nottouseforcewhenremovingmalfunctionswhichmightcausedamagetothecomponents;-tocarefullyinspectthecartridgesandmagazinesbeforeloadingthemagazines.Donotload magazineswithdefectiveorrustycartridges,wipethecartridgesandremovepossibleimpurities

withadryclothbeforeloadingthemagazines;-tooilthecomponentsthatworkagainsteachotherduringtheirfunctioningbeforering;clean anddrytheboreandthecartridgechamber;-tocheckfromtimetotimetheconditionoftheriecomponentsandmechanismsatbreaksin ring,removethickenedlubricantandimpuritiesoffthefrictionsurfaces;re-oilthefriction surfacesaftercleaningthem;-tocarefullyprotecttheriefrompenetrationofimpurities(dust,sand,earth)intothemuzzle whenring,whenonthemoveandwhentakingringpositions;protecttheriefromimpact

2. Typical malfunctions, their causes and solutions

Kindsofmalfunctionsandtroubles,theircausesandwaysofmethodsofremedyareindicatedinthebelow

table:


Malfunction Cause Remedy

1. MisringNo shot after squeezing the

trigger

1.Damagedringpin,ifthereis no dimple on cartridge

primerleftbyringpinimpact

2. Fatigued or broken striker spring,ifpoortraceofring

pin on cartridge primer

3. Defective cartridge

1.Replaceringpin

2. Replace striker spring

3. After a lapse of about 10 seconds(dangerofdelayed ignitionofpowdercharge),

by hand recharging, ejectthe cartridge from thechamber. Inspect theejected cartridge and if the

primershowsadequate

dimple caused by strike of ringpin,replacethecartridge

2. Piston is not returned tofront position

Fatigued or broken pistonspring

Replace piston spring


25/42


3. Half-closed boltBolt carrier doesnot bear against the faceof the receiver

1. Dirty bolt

2.Defective(deformed)cartridge

3. Dirty cartridge chamber

1. Disassemble the bolt,clean it and oil it

2. By hand recharging ejectthe cartridge from thecartridge chamber

3. Clean the cartridge chamber

4. Cartridge not fed 1. Dirty interior of magazine

2. Brokenmagazinewallsorbroken magazine feed lips

3. Fatigued or broken springofmagazinefollower

4.Shortrecoilofbolt- dirtyrie

1. Disassemble and cleanthe magazine

2. Replace the magazine

3.Replacemagazinefollowerspring

4. Disassemble and clean therie

5. Cartridge case does notextract

1. Broken extractor spring

2.Broken-offextractorclaw

1. Replace extractor spring

2. Replace the extractor

6. Cartridge case does not eject

1. Short motion of bolt backwards-dirtyrie

2. Broken piston

1. Disassemble and clean therie

2. Replace the piston

7. Cartridge jumps out of the magazine

Magazinefollowerspringistoo strong or feed lips arebroken

Replace the magazine

8. Bolt is not retained by bolt catch after ring last round

1. Defective magazine or itsspring

1. Replace the magazine or itsspring

If the above-mentioned malfunctions cannot be xed or if any other malfunctions reoccur,the rie should be sent for repairs to an authorized gunsmith appointed and approved by themanufacturer.


26/42

CHAPTER 3 - STORAGE

1. Storing the rie

Therieshouldbedepositedinaverticalpositionwiththemuzzleuporinahorizontalpositioneitheronarierackoronashelf.Itcanalsobesuspendedbythesling.Theboltshouldbeinthefrontposition,thestrikerreleasedandthesafetycatchwinginthevertical(locked)position.Themagazinesshouldbeputinthe magazine pouch and other accessories in cleaning kit bag.

Whentransported,therieshouldbeplacedinaspecialtransportboxorbaginordertopreventitfromdamage.Ifinadequatepackagingisusedwhentransportingtherie,itisofutmostimportancetoprotectthesightdevicesagainstdamagebywrappingthefrontsightandrearsightinragsandllingtheemptyspaceintheboxwithragsinordertopreventtheriefrombeingbatteredabout.

In any of the mentioned modes of deposition, the rie must not be loaded!

Thedepositedriemustbeconstantlykeptsafeandthekeysfromthelocksoftheracks,shelves,cabinetsorsafesholdingtheriemustbekeptinasecureplace.

Do not plug the borewithpaper,ragsorotherobjectsregardlessofthestorageconditions,orbarrelbulge or additional damage may occur.

Afterterminatingshooting,riemustbecleanedeachtime.Specialattentionshouldbepaidtocleaningoftheboreandcartridgechamber.Allaccessoriestotheriemustbekeptingoodcondition,cleanandap-propriately deposited.

CHAPTER 4 - INSPECTION OF THE RIFLE

1. Principles of inspection of the rie

Regularinspectionsoftheassembledanddisassembledrieshouldbecarriedoutregularly.Theextentofdisassemblingshouldbedeterminedbytheinspectingperson.Theowneroftherieshouldinspectitbefore leaving for the shooting range and during cleaning.

Alongwiththeinspectionoftherieallspeciedrieaccessoriesshouldbeinspected.Whennotusedtheassembledrieshouldbeinspectedonceamonth.Oninspectionoftherie,itisnecessarytocheck:

-whetherthereisanyrustytintonthemetalpartsofrie,whetherthemetalpartsaresoiled,

batteredorscratchedandwhetherthewoodenpartsoftheriehavesplitorcracked.-whetherthefrontsightorrearsightaredamaged,whetherthesightinggaugemarksare oppositeeachother,whetherthefunctioningoftheslideandtherearsightplungeriscorrect;-whetherthemagazinesareundamaged



27/42

Inspection of the assembled rie

Wheninspectingtheassembledrie,itisnecessarytocheck:

a)The functioning of the bolt:Oncockingthebolt,themotionofthecomponentsmustbetrouble-free,withoutseizingup,withconsiderableresistanceonthepartofthereturnspring.Onreleasingthebolt,thismustmoveenergeticallyforwardsatwhichtheboltcarriermustrunasfarasitsextremefrontposition and lean against the face of the receiver.

Ifanemptymagazineisshiftedintotherie,theboltcatchmustretaintheboltintheopenpositionwhentheboltmovesforward.Correctnessoffeeding,extractingandejectingmaybeveriedbyhandchargingatwhichthemagazine,insertedintherie,isloadedwithpracticerounds.Inthisway,thefunctioningofthemagazine,oftheextractorandoftheejectormaybeveried.Atthesametime,thefunctioningofthemagazinecatchisveried.Wheninsertingthemagazineintotherie,themagazinecatchmustaudiblysnapinbehindtheprojectionattherearedgenearthemagazinefeed lips. If not depressing the magazine catch, the magazine must not be released from the receiver.After checking the functioning of the bolt, the striker spring should not remain depressed.

b)The functioning of the trigger mechanism: The functioning of the trigger mechanism should only

be checked when using practice cartridges.Insertapracticeroundintothecartridgechamberbyhandcharging;thesafetycatchwingisadjustedtotheFireposition.Inthepositionofthesafetycatchwing,thestrikermustbereleasedbysqueezingthetriggerandaudiblystrikingtheringpin.IfthesafetycatchwingisadjustedintheSafeposition,i.e.,downwards,thestrikermustnotbereleaseduponsqueezingthetrigger.Whenadjustinganyofthetwopositions,thesafetycatchmustbeturnedtosuchadegreethatanaudibleclickisheard;tochangethepositionofthewing,acertainforcemustbeexerted.c)The correctness of the rear sight and the front sight:Itisnecessarytocheckwhethertherearsight leaf is lacking side clearance and is not bent. If the plunger is depressed, the slide must easily movealongtheleafandmustbeforceddownbytherearsightfeathertotherearsightrampinallpositions.Theplunger lug must be able to snap into all the notches on the leaf.

Regardingthefrontsight,itisnecessarytoverifywhetheritisdamaged,whetherthesightinggaugemarksareoppositeeachother,andwhethertheadjustmentfortheheightofthefrontsightisnotimpaired(thismaybedeterminedfromtheintegrityofthedropofredlacquerinsidethefrontsightcover).

d)The functioning of the stock: It should be checked in order to assure that the stock is tightly se-curedtothereceiver,issteadyanddoesnotwobblesignicantly.Thestockshouldalsobecheckedforanycracks.

Inspection of the disassembled rie

Beforeadisassembledrieisinspected,allthecomponentsmustbewipeddry.Whentherieisdisassem-bledallthecomponentsmustbecarefullyinspectedinordertodeterminewhethertheyarefreeofrust,whethertheyaresoiled,crumbledoff,battered,seizedorexcessivelyworn.Additionally,thecomplete-

ness of the rieshouldbeveried.



28/42

Defectivecomponentswhichrevealssures,rubbed-outspots,excessivelywornactivesurfaces,strippedthreads,loosenedconnectionsorthosethataredeformedand/orbrokenmustbereplaced.

Wheninspectingthebore,itisnecessarytoliftthebarreltogetherwiththereceiveruptotheheightoftheeyesandturntheotherendofthebarreltowardthedirectionofthebestlight.Whileslowlyrotatingthebarrel, it is necessary to carefully inspect the grooves of the bore, starting from the muzzle to the directionofthereceiver.Inorderthatthewallsoftheboremaybebetterseenalongallthelengthofthebarrel,itis

necessarytovarythedistanceofoneseyefromthemuzzle.

Wheninspectingthebore,thefollowingdefectsortroublesmaybediscovered:

-theremainsofburntpowderorrustthatappearsasadarktint.Rustorremaindersof burntpowderundistinguishablebytheeyemaybefoundoutbymeansofawhiteclothwhich willshowdarkbrownorblackspotsafterwipingthebore.Greyspotsintheborethatdonot leavespotsontheclothafterwipingtheborearenotafault;-rustthatappearslikedotsorsmalldropsonsomespotsoralloverthebore

shallowdarkspotsthatremainafterderusting

-pitscausedbyrustarepitsinthemetal,visibletotheeye

-acoppercoatingwhichiscausedbyringwithprojectilesprovidedwithtombackjacket;theyappear to the eye as a slight copper coat or bulge in the bore

-scratchesintheshapeofdashes,manytimeswithdistinctprolapsesofmetalontheboresurface

-rounding(wear,spallingofthechromelayer)ofeldsmanifestingitselfparticularlyontheleft- handedgesoftheelds;itoccursmostoftenbehindthecartridgechamberandnearthemuzzle

-darkspotsandanirregularsurfacebehindthecartridgechamber(spalledchrome),whichisa symptom of burning up the transition cone

-abulgeintheshapeofatransversaldarkring;ariewithabarreldamagedinthiswaymust notbeusedforringunlesstherieischecked.

-bendingofthebarrelthatmanifestsitselfasanirregularlengthofshadeintheborewhen rotatingthebarrel;batteredspotsontherearfacewallofthebarrel,andscratchesinthe

cartridge chamber.



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Wheninspectingthepiston and the gas adapter check:

-whetherthepistonheadisexcessivelyburntorbattered; -whetherthegascylinderisseizedorburntthroughandwhetherthereisnodeposit ofcarbonandimpuritiesontheinternalwalls; -whetherthepistonmovestrouble-freewithoutseizinginthegascylinder.

Wheninspectingthereceiver check:

-whethertheguidebars,groovesandtheactivesurfacesarescratchedorrubbedby pressing;aglossyappearancetothesurfacesoftheprojectionsonwhichthelocking piecelocksispermissible; -whethertheejectorisforcedin,brokenoffordisplacedinthegrooves; -whethertheboltcatchiscracked,brokenofforforcedin; -whetherthesafetycatchholderisbroken; -whetherthelacqueronthereceiverisscratchedoff; -whetherthepistonmovesfreelyalongtheguideintherearsightbase.

Wheninspectingthebolt check:

a)Bolt carrier:

-whethertheguidebars,groovesandactivesurfacesarescratchedorrubbedby pressing;inspectifthefacebearingsurfaceisrammeddown; -whetherchromelayeronthesurfacesandedgesisspalledorcrumbledoff

b)Bolt:

-whetherthecartridgecasebedandtheopeningfortheringpinareburntoff; -whethertherearessures,pitsormetallicdepositsaroundtheopeningfor theringpin;

-whethertheactivesurfacesarerubbedbypressingorrammeddown; -whethertheendoftheopeningfortheringpinisattened,i.e.,whether theringpinpassesfreelythroughtheopeninginthecartridgecasebed;Pin mustshiftoutofboltsopeningwhentheboltisoverturnedbyitsown weightor,atthemost,whentappingslightlywiththeboltagainstthepalm; -whethertheextractorclawispressedwithsufcientforceintheboltcartridge casebed; -whethertheextractorisclampedbythewallsofitsgroove,i.e.,whetheritreturns, afterbeingdeected,energeticallytotheinitialposition; -whethertheextractorhasssuresorwhethertheextractorclawisbrokenoffor damagedinsomeotherway.

c)Locking piece

-whetheritmovesfreelyinthebearingsofthebolt; -whethertheedgesoflockinglugsarebatteredordeformedinsomeotherway;

a glossy appearance of the active surfaces of the locking lugs and of the upper (glide-over)surfaceispermissible; -whetherthelockingpiecetiltsoverbyitsownweightintothelockedposition; -whetherthechromelayeronthesurfacesoredgesisspalledorcrumbledoff.



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d)Striker:

-whetherthenoseofthestrikerheadiswornouttoexcess; -whetherthestrikerpassesfreelythroughtheopeningintheboltcarrier.

Wheninspectingthetrigger mechanism check: -whetherthetrigger,disconnectorandsearpivotarefreeontheirpins; -whetherthearmofthetriggermechanismfeatherisbrokenorbentandwhetheritis

inthecorrectpositionunderthesear; -whethertheseariswornouttosuchanextentthatitdoesnotcatchthestriker

reliably.

Wheninspectingthestockand front handguards check: -whetherthewoodenpartsarecracked,batteredordeformedinsomeotherway; -whetherthestockisloosened; -whethertheswivelonthestockisloosenedordamaged;

2. Disassembling the rie

Therieisdisassembledforthepurposeofcleaning,preserving,forinspectionandwhenreplacingand/orrepairing its parts.

Therearetwowaysofdisassemblingtherie:

-partialdisassemblingand -completedisassembling.

Partialdisassemblingoftherieiscarriedoutbytheownerforthepurposeofcommoncleaning,preserv-ing and inspecting.

Completedisassemblingoftherieisonlycarriedoutwhenreplacingandrepairingitspartsatanautho-rizedgunsmithworkshop.

Disassemblingandassemblingtoofrequentlyharmstherieasthewearonitscomponentsisaccelerated.

Whendisassemblingandassemblingtherie,thefollowingrulesmustbeobserved:

-Disassemblingandassemblingoftherieshouldbecarriedoutonatableorbench;wheninthe eld,thisshouldbecarriedoutonacleananddrysheet.

-Everytime,beforedisassemblingtherie,themagazineshouldbetakenoutandmadesurethere is no cartridge in the cartridge chamber.

-Whenseparatingandassemblingthecomponents,handlethemwithcare,donotuseforceasitcould cause damage.


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Therieisdesignedsothatallthecomponentsandmechanismsmaybeeasilytakenoutfromandinsertedbackintotherie.Forthisreasonnoothertoolsshouldbeusedfortakingoutandinsertingcomponentsandmechanismsoftherieotherthantheneedle,otherwisethecomponentscanbedamaged.

For common maintenance of the rie it is sufcient to remove the upper handguard, take outthe piston with the spring, remove the return mechanism and take out the bolt.Thisallowsac-cess to the trigger mechanism. The rie must be disassembled with its striker released.

Disassembling the rie partially

Therieshouldbedisassembledinthebelow-mentionedsequenceandextent(Fig.26):

1. magazine2. return mechanism3. bolt4. upper handguard

5.pistonwithspring


Fig. 26 The Sa vz. 58 Military rie in cal. 7.62 mm partially disassembled


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a)Taking out the magazine(Fig.27):Holdtheriebythegripwiththerighthandandgraspthefrontwallofthemagazinewiththelefthand.Leantheleft-handthumbagainstthemagazinecatchandpushitforward.Simultaneously,tiltthemagazineforwardinthedirectionofthebarrelandpullitoutfromthereceiversmagazinewell.

b)Removing the return mechanism(Fig.28-29):Withthelefthandgrasptheriefrombelowbythereceiverandbythethumboftherighthand,thepalmofwhichleansagainstthetopofthebuttstock,depresstheprotrudingendofreceivercoverpin.Thengrasptheknurledheadofthepinbytheright-hand

thumbandindexngerandpullthepinouttotherightuntilanaudibleclickisheard.

Graspthetopofthebuttstockwiththerighthandandleantheright-handthumbagainsttherearwallofthereceivercover.Throughforwardpressureofthethumbandanupwardshift,movethebaseofthere-turnmechanismoutfromthereceiverrecess,andbypullingbackwards,pullallthereturnmechanismoutoftherie(Fig.28).Oryoucanusetherighthandforholdingtheriebythegripandplacethepalmofthelefthandonthetopofreceivercoverwiththumbbehindtherearendofthecover.Bypushingforwardandliftingup,thecovercanberemovedfromthereceiverandpulledout(Fig.29).


Fig. 27 Taking out the magazine

Fig. 28 Removing the return mechanism Fig. 29 Removing the return mechanism


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c)Taking out the bolt(Fig.30):Holdtheriewithrighthandbythegriporfrombelowthereceiverandpointthemuzzletothegroundand.Withthelefthandusingthecockinglever,pulltheboltcarrierbackwardstoastop.Withtheuseofmiddlengerandthethumb,taketheboltcarrieroutofthereceiver.Allthetimethewholeboltassemblyisbeingtakenout,itsfronthastobepointingdown,inordertopre-vent the striker from moving out of the bolt carrier shaft and bolt falling out.

Thentaketheboltcarrierbythelefthandandwiththerighthandgraspthestrikerbyitsheadandpullitoutoftheboltcarrier.Whiledoingthis,turnthestrikerslightlytotheleftuntiltheprojectionofthebolt

carrier passes through the cross groove to the neighboring through groove. Continue pulling the head ofthe striker, shift the striker completely out of the bolt carrier. The bolt is thereby released. Remove the lock-

ingpiecefromtheboltbytiltingitupwards.

Fig. 30 Taking out the bolt


d)Removing the upper handguard:Depresstheprojectingpartofbarrelguardpin552withtherighthandthumb.Withtherighthandthumbandindexngergraspthebarrelguardpinbyitsknurledhead and pull it entirely to the right. After shifting the barrel guard pin out, lift the rear part of the barrelguardupabit,withtherighthand,andtiltitupwardsinthedirectionofthemuzzle.Inthisway,thetipsofthe barrel guard are shifted out from the grooves of the gas adapter and the barrel guard may be removedfromtheweaponbypullingitbackwards.

e)Removing the piston(Fig.31):Holdtheriefrombelowwithonehandandgraspthepistonwiththeotherhandandpushitbackwardstoastopagainsttheactionofthepistonspring.Thentiltthepistonupwardsfromthegascylinder.Inthisway,thepistonheadcomesabovetheupperwallofthegascylin-der;bypullingthepistonaskanceforward,takethepistonoutfromtherecessintherearsightbase.Ifthepistonspringhasnotbeenshiftedouttogetherwiththepiston,shiftitoutbyusingtherearendofthe

piston.


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Fig. 31 Removing the piston

3. Assembling the partially disassembled rieThepartiallydisassembledrieshouldbeassembledinthefollowingorder:

a)Insert the piston with the spring:Shiftthepiston,withthespringoveritscylindricalpart,intherecessoftherearsightbaseaskancedownwardstoastop.Tiltthepistonheadtotheroundofthegascylinder and release the piston. Through the action of the spring the piston comes to its front position.

b)Put the upper handguard on: Make the tips of the upper handguard front hoop snap into the

grooves on the gas adapter and tilt the upper handguard. Shift the upper handguard pin completely to theleft. The upper handguard is thus locked against falling out.

c)Assemble the bolt:Mountthelockingpiecewithitsjointsintothebearingsofthebolt.Inserttheboltintherecessintheboltcarriernearthebridge.Shiftitforwardinordertoengagethegroovesinthecarrier. Shift the striker in the bolt carrier so that the gauge mark on the striker is opposite the gauge markontherearwalloftheboltcarrier.Thenturnthestrikerbythewholelengthofthegaugemarktotherightand shift it to a stop in the bolt carrier.

d)Put the bolt carrier into the receiver:grasptheassembledboltcarrierwithonehandsothatthethumbleansagainstitsrearfaceandthemiddlengeragainstitsfrontface.Holdtheriefrombelowwith

theotherhandbythereceiverwiththemuzzlepointingslightlydownwards.Inserttheboltcarrierfromaboveintherearpartofthereceiver.Shifttheinsertedboltcarrierasfarforwardaspossible.Thestrikerwillremainretainedbythesear.SetthesafetycatchtoFirepositionandsqueezethetrigger;thestrikeris then released by the sear.

e)Insert the return mechanism: First of all, partially shift the return spring in the cavity of the boltcarrierandthenthestikerspringintheopeningofthestriker.Pushthefrontpartofthecoverdowninor-dertoengagethegroovesintheboltcarrierandbypushingforwardsanddownwardsshifttheprojectionof the base in the recess in the rear part of the receiver. Lock the return mechanism by shifting the pin ofthe receiver cover to the left until an audible click is heard.


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CHAPTER 5 - MAINTENANCE

1. The main principles of rie maintenance

Oneoftheconditionsforreliablefunctioning,accuracyofreandtheservicelifeoftherieiscorrectandtimelycleaningandpreservingaswellasinspections.Theriemustalwaysbekeptingoodorderandclean.

MaintenanceandcareoftheSavz.58Militaryrieisdividedinto- dailycare,- andmonthlycare.

Daily careoftherieshouldbecarriedoutassoonaspossibleaftershooting.Theextentofthecareisdeterminedaccordingtotheneedswhichdependeontheconditionsoftheshooting,fromtheweatherconditionsandthelike.Afterreturningfromshooting,therieshouldbepartlydisassembledandallthemainpartscompletelycleaned.Overthefollowing3to4days,checktherieforrust.If,indoingthis,itstillshowstracesofimpuritiesduetocombustionproductsorrust,thecleaningprocedureshouldbere-peated.Onlyafterpropercleaningandwipingtheriedry,itcanbepreservedwithoil.

Monthlycareshouldbecarriedouteveniftherieisnotredwithinthistime.Atmonthlychecks,therieshouldbecheckedforanypossibleruststainsandsufcientoilpreservation.

Iftheabove-mentionedprinciplesareobserved,anyinadequatedeteriorationofthetechnicalconditionoftheriecannotoccur.

2. Cleaning and preserving agents

Whencleaningandpreservingtherie,onlyspeciedcleaningandpreservingagentsofhighqualityshouldbe used.

To cleantherieonlythefollowingmaterialshouldbeused: -cleansoftrags(coloredaswellaswhite)tocleanandpreservethecomponents -brassborebrush -cottonpatches -highqualitygunoil -horsehairbrush(partoftherieaccessories). -toothbrush

To preserveriesthefollowingshouldbeused: -RIGtoprotectthemetalpartsoftherieagainstcorrosion.Thisproductmaybeused

all year. -gunoiltolubricatethefrictionsurfacesintheriethatareinuse

The cleaning agents must be protected from dust and moisture contamination.



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3. Procedure in cleaning and preserving the rie

Afternishingshooting,therieshouldbepartiallydisassembledforcleaning.Completedisassemblingoftherieforcleaningisonlynecessarywhentherieisstronglysoiledorwhenithasbeenexposedforalongerperiodtomoisture,snowandthelike.Completedisassemblingoftherieforthecleaningpurposesshould only be carried out by an authorized gunsmith.

Whencleaningandpreservingrieparts,itisnecessarytoproceedasfollows:

a) Theboreshouldbecleanedfromthesideofthemuzzle.Inordertodothis,onemustunscrewbothpartsofthecleaningrod.Shifttheendofthecleaningrod,providedwithanannulargroove,inthelongitudinalopeningintheunscrewedoilcanplugandlockitbytheneedlewhichmaybepushedthroughthetransversalopeningintheoilcanplugsothatitcanpasswithacertaindifcultythroughtheborebe-ingcleanedandsoitllsthegrooveswell.Thensoakthepatchingunoilandrunitthrutheboreseveraltimes. Then slip the muzzle cap over the thread protector and move it around a slight amount so that thethreadprotectorsafetycatchsnapsinthecut-outofthemuzzlecap.Graspthecleaningrodbytheneedleandtheplug,andcontinuouslywithoutanyforcedrawthecleaningrodseventotentimesalongallthelength of the bore. After this, remove the muzzle cap and pull the cleaning rod out.

Thenremovetheoiledclothoffthecleaningrodandpulladrycleancloththrough.Thecleaningwiththeclothshouldberepeatedseveraltimesiftheclothshowsbrownorblackspotsduetorustorcombustionproducts.Ifthosespotsappearevenafterwipingthebarreloutseveraltimeswiththecloth,itwillbenec-essarytorepeatthecleaningwiththeaidofacleaningagentandthenagainwipetheboredrywithcleanpatches.

Whenhavingdrawnthecloththroughforthelasttimetherearenolongeranytracesofcombustionprod-uctsfrompowder(blackorbrownspots)ortracesofrust,moveontocleaningthecartridgechamber.Inordertocleanthecartridgechamberandthegascylinder,screwtheoakumcleaningrodintotheoilcanplugfromthethreadlesssideoftheopening.Thencleanthecartridgechamberinthesamewayasthebore,atwhichtheoilcanwheninaverticalpositionservesasahandlefortheoakumcleaningrod.

Afterhavingnishedcleaningtheboreandthecartridgechamber,pulloncemorealltheborethroughanddrywithcleanpatches.Thencarefullyinspecttheboreagainstthelightwhileslowlyrotatingthebarrelinyour hands. It is especially necessary to carefully inspect the edges of the grooves near the muzzle andnearthecartridgechamber,i.e.placesfromwhichimpuritiesarethemostdifculttoremove.Inordertochecktheconditionofthecartridgechamberandthatofthebore,areectingmirrorcanbeused.

If the inspection demonstrates that the bore and the cartridge chamber are completely clean, immediatelyapplyaslightlayerofpreservingRIG.DrawapatchsaturatedwithRIGintothecut-outofthecleaningrod.Thepatchmustbeofsuchashapesoastopasseasilythroughthebore.Thendrawthecleaningrodtwotimes to three times continuously through all the length of the bore so that the preserving agent may fullyadheretothegroovesandeldsoftheboreandtothoseofthecartridgechamberandformathincon-

tinuous layer.

Excessivelylubricatedpartsgetquicklycontaminatedwhichiswhyitisnecessarytoapplyonlyanelayerofpreservingagentbymeansofagreasyrag.Whenlubricatingtherecesses,groovesandgaps,itisnec-essary to roll the patch round a stick.

Preservingtheborewithanoilgunprotectsitagainstcorrosionforonlyafewdays.

Ifthewipeddryboreisleftwithoutapreservingagentformorethananhour,itgrowsdampduetotheef-fectofambientair.Thepreservingagentmustnotbeapplieduntiltheboreisre-wipedoutdrywithacleandry cloth.



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Ifrustisfoundduringthecleaning,softenitwithacleaningsolution,withkeroseneorapreservingagentandthenwipeitoutwithacleanpatch.Iftheremainsofpowdercombustionproductsandrustcannotberemovedfromtheboreintheabove-mentionedway,therieshouldbegiventoanauthorizedgunsmith.

b)Thegascylindershouldbewipedoutwithapatchsaturatedwithacleaningagentandthenwipedoutdry.Cleaningshouldcontinueuntilalldepositsofpowdergasesareremoved.ThegascylinderwhenwipeddryshouldbepreservedwithathinlayerofRIG.

c)Whencleaningthepiston,payattentiontothedisposalofdepositsfromthecircumferentialgrooveonitshead.Afterwashinginthecleaningagent,thepistonshouldbewipedwithoil.Afterremovingtheimpurities,thepistonshouldbewipeddrywithacleanragandpreservedwithathinlayer of RIG.

d)Thereceiver,theboltandthenon-disassembledtriggermechanism,therearsightandthereturnmechanismmaybecleanedbymeansofwoodenstickswrappedwithragssoakedinthecleaninggunoil;openings,grooves,cut-outsandrecessesshouldbecleanedwithpointedwoodsticks.Aftercleaning,thecomponentsshouldbewipeddrywithacleanragandpreservedwithalightcoatofRIG.Alsoofimpor-tanceforchecking,aftercleaningthenon-disassembledtriggermechanism,iswhetherthepositionsofthetrigger mechanism components are correct, especially the positions of the arm of the trigger mechanism

feather.

Allcomponentsstronglysoiledwithpowdercombustionproductsshouldbeimmersedinthecleaningsolu-tionforaperiodofuptohalf-an-hour;theremaindersofthecleaningsolutionmust,however,bedisposedof carefully. Cleaning gun oil or its emulsion should not be left in the bore.

e)Thewoodenpartsoftherie,i.e.,thestockandupperandlowerhandguardsandmagazinesshouldbewipedwithamoistclothandthenwipeddrywithacleandrycloth.

f)Thelacqueredpartsoftherie,suchastheexternalsurfaceofthebarrelandreceiver,thatoftheboltcarrier,triggerguardandreturnmechanismcovershouldnotbepreserved;theyshouldbewipedwithaoilyclothandthenwipedwithacleandrycloth.

Afterhavingappliedthepreservingagent,therieshouldbeassembled.Ifthepreservingagentgetswipedoffatsomepointsduringassemblyoftherie,itwillbenecessarytorestorethepreservingagentlayer.

CHAPTER 6 - REPAIRS

1. Repairing the rie

Therieownershouldonlycarryoutminorrepairswithinthescopeofrepairsofmalfunctionsdescribedin

theTroubleshootingsectionofthismanual(PartIIChapter2).

Anyotherrepairsshouldbeperformedbyanauthorizedgunsmithonly.Noncompliancewiththisrulemayresultinseriousdamagetotherieortheownershealth.



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38.Zeroingandzeroing-inoftherie

PARTIII.Zeroingandzeroing-inoftherie

General provisions

Allriessuppliedtobuyershavealreadybeenzeroedinbythemanufactureroftherie.

Thezeroingoftherieshouldbecheckedif:a) afterbuyingtherie:-innewriesonlyincaseofasuspicionthatthefactoryzeroingwasimpaired-inoldrieseverytime

b)wheneverunusualdeviationsinhitsorunusualdispersionarefoundoutduringring

c)afterreplacementofcomponentsorafterrepairsthatmightimpairthezeroing.

Riesareagainalsozeroedinaftermajorrepairsbyanauthorizedgunsmith(replacementofthebarrel,

rearsightandthelike)whichimpairthezeroing.

Beforecheckingthezeroing,theriemustbecarefullyinspectedandrepairedifnecessary.Theriebarrelmustbewipedoutdrybeforering.

Thecheckingofthezeroingshouldbecarriedoutunderweatherconditionsthatarefavorableforring(onwarm,windlessandcleardays)inanopenshootingrangeprotectedagainstwindorinaindoorshootingrange.

Tocheckthezeroingandtozeroin,only7.62x39mmBallcartridgesshouldbeused.Allcartridgesmustbe of the same production series.

Theriezeroingshouldbecheckedatarangeof100meters,forwhichtherearsightissettotherange3.Firingiscarriedoutonatargetofatleast1meterinheightand0.5metersinwidth.Thezeroingsheetisxedtoatarget.

The zeroing sheet(Fig.32)isablackrectangleof35cminheightand25cminwidth.

Theaimingpointisthemiddleofthebottomedgeofthezeroingsheet(ablackrectangle)whichistobeapproximatelyonalevelwiththeriemanseye(onthelevelofthebarreloftheriebeingchecked,whensighted).

The normal position of the mean point of impact should be marked on a vertical

linepassingthroughtheaimingpoint.Thismeanpointofimpact,whentherearsight is set to 3, is to be at a height of 28 cm above the aiming point and is, si-multaneously, the checking pointwhendeterminingtheaccuracyofthezeroingoftherie.Aroundthechecking point, a checking circle of 10 cm in diameter is

circumscribed.

Fig. 32 Zeroing sheet


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Firingisdoneinapronepositionwithsupport.Abaglledwithsandcanbeusedasasupport.Whenr-ing,thelefthandholdingtheriemustrestonthebag.

Procedure in checking rie zeroing and zeroing in

Thezeroingriemanloadsthemagazinewith4cartridgesandres4shots,accuratelyandsteadilyaimedatthemiddleofthebottomedgeoftheblackrectangle,whileduringre,neitherthepositionoftheriemansbodynorthatofhislefthandarechanged.

Afterterminationofring(ofthose4shots),thetargetisinspectedandthedispersiongroupingandtheposition of the mean point of impact evaluated. The rie is considered as zeroed in if all the four hits-inanextremecase3ofthehits(ifonehitshowsagreatdeviationfromtheothers)maybecoveredwithacircle of 18 cm in diameter and if, at the same time, the mean point of impact is not deviated bymore than 5 cm to any side from the checking point.

Determination of mean point of impact

Determination of the mean point of impact on the basis of the four hits /impacts/(Fig.33).

Forasymmetricaldispersionofthehits,themeanpointofimpactmaybedeterminedbyoneofthefollow-ingmethods:

a) jointwoandtwohitswithstraightlinescrosswise;thepointofintersectionofthetwostraightlinesisthemeanpointofimpact(Fig.33a)

b)joinbymeansofstraightlinesalwaystwoandtwohitssothatthestraightlinesdonotcrosseachother.Bisecteachofthestraightlinesintotwohalvesandjoinagainthebisectingpointsbymeansofastraightline.Themiddleofthisstraightlineisthemeanpointofimpact(Fig.33b).

Fig. 33 Determination of the mean point of impact on the basis of the four hits /impacts/

a b c


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2

1

3

Fig. 34 Determination of the mean point of impact on the basis of the three hits /impacts/

Foranasymmetricaldispersionofthehits,themeanpointofimpactshallbedeterminedasfollows:1) jointwoarbitraryhits/impacts/withastraightlineandbisectthedistancebetweenthem

2) jointheobtainedpointwiththethirdhitanddividethedistancebetweenthemintothree equal sections

3) jointhedividingpointthatisclosertothetworsthitswiththefourthhitanddivide thedistancebetweenthemintofourequalsections;thethirddividingpointstarting

fromthefourthhitisthemeanpointofimpactsearchedfor(Fig.33c).

Ifoneofthefourhits/impacts/isconsiderablydeviatedfromtheothers,donottakeitintoaccountanduse three hits method.

The mean point of impact on the basis of the three hits(Fig.34)shallbedeterminedasfollows:1) joinanytwoofthehitswithastraightlineandbisectthestraightline

2) jointhemiddleofthisstraightlinewiththeremainingthirdhit

3) dividethisnewstraightlineintothreeequalsections;thedividingpointthatiscloser totheconnectinglineofthersttwohitsisthemeanpointofimpact.



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Ifthehits/impacts/cannotbecoveredwithacircleof18cmindiameterorifthemeanpointofimpactisdeviated from the checking point to any side more than 5 cm, but not more than 12 cm, the cause of sucha great dispersion or the cause of great deviations of the hits from the checking point should be found. Af-terndingoutthecause,theauthorizedgunsmithshouldrepairtherieandtheringshouldberepeated.Iftheresultoftherepeatedreisagainunsatisfactory,i.e.thehits cannot be covered with a circle of18 cm in diameter or the mean point of impact is deviated from the checking point more than12 cm,therieshouldbetakentoaauthorizedgunsmithtobezeroedin.

Ifthedispersiongroupingoftheriecomplieswiththespeciedcondition(thehitsmaybecoveredwithacircleof18cmindiameter),butthedeviationofthemeanpointofimpactfromthecheckingpointisgreat-erthan5cm,butnotexceeding12cm,therieshouldbetakentoaauthorizedgunsmithtocarryout,independence on the position of the mean point of impact, an appropriate displacement or correction of thefrontsightforheight.Thefrontsightshouldbescrewedinabit(lowered)ifthemeanpointofimpactissituatedbelowthecheckingpoint,oritshouldbeunscrewedabit(raised)ifthemeanpointofimpactisabovethecheckingpoint.Thefrontsightpinshouldbedisplacedtotheleft(totheright)ifthemeanpointofimpactisontheleft(ontheright)fromthecheckingpoint.Byvaryingthepositionofthefrontsightandthroughrepeatedringsuchapositionofthefrontsightmustbeobtainedatwhichthedeviationofthemean point of impact from the checking point to any side does not exceed 5 cm.

Changingoftheheightofthefrontsightpinby1turn(0.5mm)ordisplacementofthefrontsightpintothesideby0.5mmchangesthepositionofthemeanpointofimpactby14cmwhenringat100meters.

Ifboththedispersiongroupingandthepositionofthemeanpointofimpactcomplywiththeabove-men-tionedrequirements,thecheckingoftheriezeroingisnished.

Ifthesidepositionofthefrontsightwaschangedwhenzeroingintherie,anewgaugemarkonthefrontsight pin opposite the gauge mark on the front sight holder should be made. The old gauge mark on the

frontsightpinshouldberemoved.Itisforbiddentostampanewgaugemarkonthefrontsightholder.Ifthepositionfortheheightofthefrontsightwasimpaired,adropoflacquershouldbeappliedagain.

Theresultanddataofthezeroing(checkingofzeroing)oftherieshouldbewrittenonthezeroingsheet.

Rie malfunctions and troubles impairing the zeroing

Inthecourseofusingtherieorduringthecheckingofthezeroing,thefollowingmalfunctions,dueto

displacementofthemeanpointofimpact,mayoccur:a) Sidedisplacementofthefrontsightpin,frontsighttopbentorimpairedbyimpact projectilesdeviatetothesidewhichisoppositetothatofthefrontsightdeviation.

b) Bentorbeveledrearsightleafprojectilesdeviatetothesidetowhichtheback sight notch is deviated.

c) Muzzleofboredamagedbyimpactprojectilesdeviatetothesidewhich isoppositetothatwiththemuzzledamage.



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Dispersionenlargementmaybecausedbythefollowingmalfunctionsortroubles:a) Sidewobblingoftherearsight;aftereveryshot,theleafmaybeinadifferent position,thuscausingenlargementofthedispersionforwidth.

b) Wobblingoftherearsightslide:theplungerlugdoesnotretaintheslideinasteady positionontheleaf;whenring,theslidespontaneouslychangesitspositiononthe

leaf, thus causing enlargement of the dispersion for height.

c) Worn-out(widened)boreinboththemuzzleandthecartridgechamber.

d) Worn-out,roundedorcrumbled-offedgesoftheeldsofthebore.

e) Rustybore,pitscausedbyrust,scratchesinthebore.

Therieshallbezeroedinby8shotswhen:a) themeanpointofimpactofthe8shotslieswithinacircleof8cmindiameter,with

the checking point being the center of the circle

b) dispersionofthose8shotsmustliewithinacircleof20cmindiameterwhenmea suredfromthecentersofthemostdistanthits/impacts/.Ifoneofthehitsdeviates,itmay beomittedandthenthedispersionisthatmadeofthesevenhits/impacts/,

but this dispersion must not exceed a circle of 20 cm in diameter, either. Themeasuringshouldbedoneinthesamewayasinthepreviouscaseandthe

position of the mean point of impact is determined from those seven shots. Asadeviatedhit/impact/isconsideredsuchahitthatismoredistantfromthemean pointofimpactmadeoftheremaining7shotsthanisthediameterofthecircle

circumscribed for the remaining seven shots

c) correctionofthefrontsightispermissiblewithintheextentofthedeviationofthe longitudinal axis of 0.5 mm and 1 mm for the height from the mean value of

thefrontsight(54.6mmwhenmeasuredfromtheoppositeprojectionsofthefront sightholder).

The rie is considered as zeroed if the mean point of impact lies within a circle of 8 cmin diameter and if it is possible to cover all 8 (or 7) hits /impacts/ with a circle of 20cm in diameter.

Sa VZ58 Operators Manual

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