36778320 tm 9 1215 technical manual ordnance maintenance thompson sub machine gun cal 45 m1928a1...

8/6/2019 36778320 Tm 9 1215 Technical Manual Ordnance Maintenance Thompson Sub Machine Gun Cal 45 M1928A1 1942

1/29

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TECHNICAL MANUAL

gRDNANCE MAINTENANCE

tHOMPSON SUBM'ACHINE.(;'ON;.CAL.45, M-1928.Al

;March 1, 1942.I--~~~~--~~~~"~~,-c~ ,

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2/29

TECHNICAL MA,NUAJ.,.). '1 '110. ..... ala" ')

TM $J-12U5

WAR DEPARTMENT ..Waab~~ ~l, i.842.,

ORDNANCE MAINTENANCE

THOMPSON ~E GUN:. -CALA8,. M1928At

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SECT][ON I.

p'arag-ra.phS.

Intr:od'Uc-t10.ri -,- ---'---...,..,---'- __ --- -- .1II-. ~n~:rai descr~p't1.on -----.,..--------

lX-I.. ,Inspect1.on ----'-,---,----,---,---,----..;.'rv .Mal.ntenanc'e~ana. repalr -- -- -- --'---v~, Re:t-erefices----,-,---_-----~---.,..-----

Index. to ')!'ext -----,--------.-.-,------------,..-.-----

3-4

~-1213-1819-,20

Pages26-27


3/29

'TM ... a:,US1 . ORIDNANCE MAlNiENANCE

lHdMPsoN SUBMACHINE GUN, CAL. .. S. MI928A.il

Sectlon I

IRTRODUC'i'ION

Paragraph.Soope ----.--.------------. ----,---.--.--------- ------.----- 1

1 SOOPB;:. - 'Ihls .manual. :is pub~lShed :Cor the In:C:ortllB:t;lonaIld guidance of: o.rdftance, maintenance :personn.el. It containsdet~1ed. lnliltruct.1ons .Cor Inspec,tl,on. disassembly .as,sembly.ma.ln.tenance, and repe..1r or the ThoaJpSOrl SUtmachine Gun. cal .. 45.rn928A.l~ supp1eaental'yto 'tlll:lee :in the Field and Techniea.l. 'Manua1sprepared rOT the us.ing arm. Mdit10nal de,scrlpt1ve matter andll1us'trotl.ons are Incl.uded.. to M.d in JrOvi.d,1ng a canpl,ete wor:kingknowledge or the m e .terle1.

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5/29


6/29

GENERAL. DE.SCRIP110NTM 9-12115-

2-4

Sect1.on ar~. DESCRIPTION

Descrl,pt1.on ------- ....--.------------- ..... -------------Hec.ban1:sm ----------.-.---,-.--.--------------.------'Opera'tl,on -------.------,----,------------.---.----------.

2. DESCRIPTION. - The Thompson sutmachine GUn, C-a1.,.45~tn.928AJ. (:r1gs., 1. and 2) ~ 1s an aircooled, b1.0.ib6.ck-operated~~,1.m;I.-red .. ea.pon. It is designed. to be n.ret1 !'ran the sboul.d.ero r the gumer s1m:Harly to a rine, anl .is usea as an auxl..liaryweapon, by the Umted Stat'es Army, Na~, and Marine Corps. The.tire contro.llever o r the 3lncan be set tor e1 ther ful.l autu-matie or sem:iautomatic rire. Two types ot: magaz:lnes" havingca,pac1ties or 20 -aut :50 ,car'trl


7/29

TM&-12154 ORDNANCE MAINTENANCE

THOMPSON 'SUaMACHINEGUN. CAL4S. M1928A I

t.he t.. o notClhes 0 1 : ' thebol.t. completing th.e cycle.. If th,et:1recontrol lever is set at: "'Full. Aut,on. the sear '111'111em.ain 4e-

pressed. and will not engage the 0011; on the backward stroke.

Und,er this: condit:ion~ the gun w:ill continue to l'unction auto-matically 3..S long as "the trigger is retracted. or untl.1 "themagazine 1s empty. Por det.a11ed description at' 'operation an~run,etlonlng. refer 'to R1 23-.40.

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8/29

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9/29

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pa.r~phG;eneral ---- ...-- ..;.-.-.- ....--.----,.. ... ---.---------.- ... -.- 5InSp,eet'1on re.pQr:t ...-,-.-----_,..---.---------,...-.--.-...,.----.-- 6

Tools :tOr inspeetion -----~.----- ... ----- ........... -- ... -- 7Gun 'as' a un1 t --.... --.... ---'-.- .... ---------.-------.;.-.- .8:FraI;De' group .-.-----,,-----------.-.---.------ ....---------- '9Beeei ver _8llIl l:la.i"'z"e1 grOUps ------------------~------.10BoX rDa,ga.Z1.rie. ----.------._,-.--.,--_-,..-_-_--,...-, ---.-------- 11

Drtllll lJIa;gazine --- --- --.,..--------.,.- ...-.----- ----.----- 125., ~ !!:.. ;rnspectlcm 1s:tc;:Jr the purpo$.'e at:' die-

terminlng. 'the cO'llIli llono~ the ma.terlel...h~etmrrepalrsorad,:! u.sttl1eilts are requ.lred ~ Bn1 .'t.b..ereme.d1.es necessary 'tb. insuretna'tthe materlel 1.s in Serviceable. condi tlon.

~. Be1'~ inspect10n 1s beglJ,ll~ the equipment Shomd be1;;horough1y cleaned to removean,y!ow..1ng. dirt or 9t)ler;torelgJlmatter~ 1thiCh m1gbt lnter-rereW1tb. 1t~ proper !in"!.ct1.0n:1ng.. Forinstru,ctlons in

care anl1CJ.ean1rJg. am mater1aJ.sUsed,ret'er to.FH23-40. sec1;lon on .,ICare a:ndCl~an1ngt' sectlon I'Vo.tth1stechnicalmanu.al,. 'l!'I9-850. . a n d SNL K...L

6.. DI$PECTIONREPORT. - Th,e praee.dure tob~ (ollowedrela.t1ngto ,1nspe:etion_andmatntena.nce is eorrta1ne4 in 'lM9-1l00,'!Ordnailce Ha.1.tt eilancei ProcedUre -Hatertel ..l:ilSpe02tlon and.Repair".

7.. TdlISJ.i"ORINSPECTI01L - Tools used ror Inspection otthe gun are tlOse t'trlllsneaCor d.lsassemt>ly. assemblY'and repair ..They a.re1nc~udec4 in ttl.e acces.sor-Ie s re terred. to inli'H 23-'40.a nd . l is te d in SNL A,...35.

B. GUN.As A UNIT.""!!o,c.oeclC .~ tor e:eneraJ.a.ppearance,meta][ _parts :far scratches. rust, .a.ri:l .ear, aM. "It'coden parts tor'cJracks and n1~s. CheCk :rlrmness ot m38z1ne, in grooves. and.action o : C ' magazlnecat.ch. Ct!eck r1,gld-I tyot rear sl.giht -baseon receiver. :front .sight on cO!IiF.eI'Hsato.r. .cClnpe~tor e m 'barrel.butt stock and gr1pson1'ra.m.e and r.e-ceiver. am s11ngsnveLs:on stoekan.d t'oregrlp. JInspecthCads tit screws ror burs. RemoveIl8gaZ1:l)e and check 'SJI)oothDess ot oolt al1(1 trIgger ae~lon '!f'h.11ere"tard.1.ng actuato;t: l'DOVE'Dlent b9 ha,rld. so tlle bQl twill not flyforward orr-an emptY' chamber.

CAUTIoN: Unless m:;iga2Ine isremoved. tnetlOlt" Ir released;,wil.! :eire a cartridge' :C'roroa loadedma.oza,zlne. as thfsgun 'tires01;1 t'onra,rd .stroke or 'the ,bolt.

~. rrposs;rble ahd pract.1cable.,tir'{:! several. rounds 1't'om

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10/29

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11/29

't'M. "',1 :;a ,1118- 9 ORDNANCE MAlN'T"EJorlANCE

THOMPSON SUBMACHINE GUN, ,CAL'. M1928A I

t.he gun. Observe act.10D ,ot' the weapon and analyze the, causeor an,y InEU.ru.nc't1.on,.,

9. P 'RAME:GROUP.- , ,! : ,o To 1n.s:pect the rrame groUP. :nrst'remove the butt stoCk asS8llU7. PU:n the actuator to, n!8r unt,11the bolt 1s caught and held by the sear. With tne bolt inreanrard posltlon" set the fi.re control lever ('roCla!r p1vot)at"FW.1 Auto" and the sat'etyat"P1re O l an! aJ.l.o.,bolt to gpConrardsloWly by pull.1ng tbe tr1gger aD! retard1.ng tIle actuator by hand.

CAlJ'l"ION: It 1.8 nece,ssary'tbat 1;,he, r1.re con'trollever andthesat'ety be set as deacr!.becl be:tOI'e' ' 111 .tb1:raWlng tbe ,rram e rro m .'the rec,el,ver. O'!tbeT1r1S,e he, se,ar and rock,er .-111. not be' !1e-p~ed and S~DUB I18mB,ge can resul. t to the mechanlsm jcr therrame 1e IOOVed! uruler these conQ:1 t10,n9.

~., Butt stock asaembly (ng. 4). - Cb,eck act1.on o:t thebutt sto,ck catch. and DOS,. or catch tor year am! burs.. Removetll:e sere_ and un out tile as:aelllbly., :tnBpect butt stock catohspr1:ng 't'orrunctlDli1Dg. rrac:tlire ,BD1 set. J'r-ee l.ength or sprlng(Al530l?) 19.75 + Q2 1n.. Dr! ve out the butt stock catchp.1nand reJIIlve eaten .. ('1'0 remove the catch button. 1'11e p1n toround. aDd drtve out,.) I:l!lSpect tbe butt st,oel!::s~1.de ror bursand. dents. Remove the butt stockp.l,a t e to .inspect ac tlQD ortrap spr.1ng. It nec,essary, remove thespr1.ng and dr:1ve outtrap pl.n. (The bracket ~s rt.vetell to' tlle, butt p~ai;e'.) Removethe sl...1.Dg .sw.ivel scr,e.s, and l1.rtouttb..e sWivel p1.&.te. I:tneceesar:Y. spr1.ng. the smvel rro.m the p.late.

,2.. J'rame. (:t1.g. 5)., - I:ns~t t)le rrame ror cracks 1.n themeta1 .and den,te and burs on corne,r.s l grooves anC1 surr,aeeso:tstock Sl.l.dewa;ys a:zJ4 "'.'7 1 ne grip. Inspect the butt stock cartcbnot,ch :Eor wear and bUrS. Inspect tlJe sa;t'etT and t.1le pt.wt h01es1.n the rrame :tor wear. U the .rear grip1.s 1.00ge, 1nspect screwthreB4B 1n:trame md on acre .. ror- wear ,endtbe sere. rorst:ra.l.glrt-ness. Inspect, the :rrama l.a:ltcb. notch 1a rear or rraJDe :tor wearand burs.

~o Ha.ga.zH:u! ' catch assembly. - Uril.ess necess&rl" t, do notremove the mag&z1De'catch. :from the E.raJDeas the spr1Qg 1.s apt11;0 be damaged. 11 rEIIIOved!. cbeclCspr1ngtor::runctlon:1ng, t'racture

and selt. .J'l"'8e l.ength or spring' (Alfi3021) Is .,85,+ .02,:ln.. LoqkrOT rore1,p matter 1.n spr1..Dg aperture. Oheck .JIIC)V8lI8nt 01" tbe.na,gaz 1 ne catch 1n the .rnu.e Wi tOO,ut spr1ng. Ch.eck the catchnose ror wear BZII1 bUrs. Checlr p10 :tor wear' and :r1nmess 1D tlJe1.atch. (HeB4 or p1n is r1:vreted into latch.)

.!.,~ SB.re'tz. - Clleoilt movement Dr the sat'ety in the :framentllout p1.vet plate. IrlspeC1; ~ surraces rorllear" ,and! bUrs.


12/29

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13/29

TM"'12US9-10 ORDNANCE'MAlN"fENANCE

THOMP5ON SUBMAo-IlNE GUN, CAL.4:5., MI928A I

r~Rooker. - Cheek IIlOYBlIerl t01' tile roCk:er on _roclrer pi 'll'o:t~Inspect lCorwear :and bur-s on contac:tlng: surtaces.

g. ,Rocker p1vot., - Check movelDentot: t.he rocker pivot1.n

tne rrame without pivot pla.te. Inspect 'bearlng eur-races rOTwear and bUT,s.J ! ! . PIvot plateaSSemb1y. - Check the piVot pl.ate shart

and ,long springs :Cor :runctlon1ng_ rracture~a:m set. Inspectp:1VOtPllls t'or wear and :r.irmlless Ln t.he pla te~ (Pin beads areriveted into plate.)

L Sear group (1':1,g:. 5) ~ -, ChecKsear ror retention at' thebolt. I,nspecttbe sear Eorwear and bJrs an nose and contacting

sur-races , and -rQ[' roreign matter in spr1ng aperture. Checkmovem~nt o':rthe t'?ear 119'1il sear lever on the p1vat. Check searspring :ror :run:::timling. t'racture,. and set. Free length or sprIng(Al53025) is .'765 +,.02 in. Irtspc't sear l.ever for wear and. bUr'Soncontacti_p,g surt'acesand ror !"oretgn.raatter in spring. apertm"e.


14/29

~NSP:ECT.fONTM9--.12lIS

1 < 0

1engtn o~ spring: (Al53020) is .45 !>.Ol. 1.n.. Check the! ~Jecto.r::co'r :U.rmnesB .in rece:tver~ and 1ll$pect the po-int .tor weara.."lei&linemen.t.. Never' try to remove the ,eje,ctor .:!ro.1Dreceiver with

the. 001 t in the rorward po.s! tlon.s. Barrel gr:::up. - rnspect tt:te barrel as a Wlj.t :CrolDthe

standlpoint of serviceabll.i ty .(1) .J:nspect1.on or' the barrel grouE aaa un1t . _ Check

:r:1rmness or tile bBn"el.. 1nr,ec'elver~ IlOsp6C't the annular radiatorgrooves :for presenc,e or :foreign .(D8.tter. dents and bLll"s. DO notremove' the barrel :h'om tnerecelverWiLel3s necessary to r.epl:ae,e.For removal. er the barrel. rerer to paragraph. l4 .2 . (2) (!2).

~nspectror loose :rront sight ~ aJ..1nt;mlent o:t sltJl. tblaae. bursand. Shi.ne o;n -up. Inspect reCOIl ("Cutts") compensa.tor rort'1nnness on th.e barrel and! :ror a:ny :foreign ~ma.tter 'in gas escapeslots+ Do not removecompensa.tor or .sight. un~ess neces,,.ry.To remove. drIve out p:1n~ drive sight rearward. and. ,unscreW'compensator w 1. th. a stra:p wrench.

(?.) Insrnctlon o:fthe barT'e.1:Cor servlceab1l1 ty. - (1!)Wi th the lClr In.g mecnanf sm r:emcived rro:m the rece.! vel". .hold the

barrel up to the light and inspect chamber-and roTe thoroughly:for .ear. pits: an.d. bulges. To :fac1~lta.te Inspec1;lon~pl.aceplece o r wIli ee paper- or ragln the re cel ver so as to r~:{."~ectligb.t into the bore" therrturn the: barrel Slowl.y so the: Hght1'ollo.s title clrct.1ln1'erence or the bo,re. Untrueness a.:nd 'bu.1gesin the bore can thus be detected more easily.,

(~) A baJ:'rel conta1.nlng small pi.ts. but havlngsh:arp andun.1.t'onnl,y dist1.nctlands.and. t'ree: ftombu1g'es., .11l.. 'be sur-

!'lClell.t1yaccurate tobe

servl.cea.b,l.e. ThiscoDl1tlon. h01l"eV'er".naturally impl1.es tlla t the barrel nas Ibeen ne'g1ect.ed. and itsperiod at: servi..cea.bl:11tyWJtU..~ theret'ore. be ma:t.er1a.lly lessened .

(C) .A barr,el cQntain1r1g a bUlge1s Ull:S.erv1ceabl.eand shOUl.dbe scrappe~. This con1ll.lon Is indicatedby' a. :shadowy depressionar dark rlDg in the bOrea:n:1may of'tenbe notlced by a ra.1.sed!ring on t.he barr,el :su:rt'ace.

Q!} A barrel. 1fiththe lalld.s worn a:wayrara consld.erabled1srtaoce ~rom the: 'ttreechend ot' ~he bore ,and/or p,1.tted to theextent that the: .snarpness 01: the lands is auect'ed~ o;r 1:r it hasapl t or pit s 1n the l.ands or grooves l.a.r:ge enough. to penni t the:passageor gas past the bullet (a pit the wldtJh. 0:[ a. .land. orgroove and 3/8 to 1/2 in., in l.~ or longer) Is. or soon will.~., too ::lnaccu.rate ror serviceabU .. li.t.Y andshou:ld be scrapped.

g.. Foreglp :group. - I'nspect ' t!h.e t'oregr.tp't'Oi:" cracks andrig1.d1 t,y. Remove!'oregrip tran M.Otmt .and lnspect screw threads

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15/29

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16/29

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c m . , sere.. :and in tte mrunt ,tor bUrs... Re:J:IO\'e the mowl/"t by !1r1 v1:ng'1 it rcrward.. then inE;Jectsllaa blades aD1, gx:-.ooves in the receiver.Check themourrt ror.allnement. Inspect the sllng s'W1.vel an4pla.te

.!.., Rear stAAt grOUP (r:lg'~ 7) ~ - Check toT' mi:sslngorloOael:lELsertvets in the receiver. Do not r'emove base urlles,snecessa.:ry. Inspect basetcr treaks M od dents.. Check action. ors18b:t lea1' a.ssem~ w1.thplunger 8J;Ilspr::lllg.. Inspec't an partsror rust:, a11nement, lle'tol"'ll!Btlcm and. presence or :rcrelgtl matter.ClleCk 'oper'at:1on 01' w1.n.dagescrelf and. s1gb.t: slide am. sight sl.1.d,ecate.b:. Do .Rot remove W1l.ess necessary. (To ,remove" dr1ve out

,s13J.ttBse plll ,ana remove sl8ht Ieat' assembly.) ReD:>vep~~rand plW'lge'" :spr1.ng. Inspect point o r plunger rar wear. pl'~pin tord..eto:rmation and spr:tng :for- 'f'UI),ct.10'niDg" :fracture, and.set. Free length: o:f spring (A.l53022.) 1s 1..20 :t,.02 l.n. Cheek:::Cor missIng or loose :s:1gh.t slMe s:top p:tn. Do mit dJ.sassemb1.eunles:1j;I necessary. {:I'o a:1sassemble. d,r,1ve out p.in and removeslll1e* Drl,ve out 1dnda.ge Iilcrewcol~a;r pin anll remo'Ve cOllarandw1n1lage screw ana. theeyep'1-ece. ) Inspect tbe el'e p1eee,

sl.1des aDd the s11(18 gI;"OOV'eS ~OJ" burs aDiwear.1.., Bo~t p;rwp (:rig., 8),. -BoU surf'aces :Bbou1dbe pol.1.abed.and :t'ree :rrom rust .. rore1.gn matter . or ,roi\.l#l!:ness,. .:tnspee,t. sE:8l'nOtches" .ectges~ eorners anduooves. ~ar burs ~ wear and den:ts~,Exam1:ne nl'1lG cartr1dgle Cases for ind1:astlons or. :set back primerdue t:o worn ,ta;c~ or bOl.t, or en:larged :t1r1ng pIn 1101:e.. blspectt.be l;JO:l:~ :race t'or 'd~o.naa;t:lcn aDd..t1r1ng pin nol.e~or enl.argemen:t.Inspeethea4 ot''1',..s.l:ot ror bU.rs an:a ..ear caUSed by tJbe l"OCker.

RemOve,theextract01". t"ak1 ng C8il"e not to spril1& mere tfiBn neces-sary to clear tile lug. Inspect 'the extract.cr .:COrset and ,IJet'or-matlon. and e181l' :Car 1I'88l". ~;w tbe Jtwr:mer pin. hoQmer.. 1:;tr1Dgpm and, .:rfi"1D;gp1D~d.ng. Chec:k1la:zzrrlar pin rcr loos'sDtss andwear ~ Check hazrmer rat' wear and burs 1D pin hole and on eantac;t1.Jigsurraces. Inspect tiring pin, head and.nose :tor wear-and, bar's.CJ'le:ck ~Jr1ng pin SF'1nc :tor .runcUaa1.ag. t:rac'tUrl!1 anQ.;s&t., Freel.engtb or spr1.ng (Al(530).IJ) 1,.8 ,2,. 50. +.015 .in.

g. J.,oCk;..-' l:nsp,ect 10c)[ :Carw,ear andtrurs on B~id1ngsurraoes.. Check mevement a t: lOCk in actu&:tor and receiver loaJ(:1.nggrooves.

~. Actua:tor.- In:s:plect a~rtuatQrror .'ear and burs ons:l.i.tl1ng sUrt'B.Ces. t'eco.U, sprlng' apertu.refOr f'ar8'ign.lMttet' tm4a....... tor he.ad :tor :D"a.ctureor ,de'tQl"lllation..

:1. BU1'rF srcu.,p~ -~spect bUr.t'er" p1.l"ottor ,a.l.1nemen,t Jdet'Q.n:Qatl(8,. and wear,.:tnspect 1bU:a'ttrpl!ll4 ror-de:1'tj,nnatlort and

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17/29

:SCREW

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PIN.1-.152999

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C A:T CH A SSEM B LYBl"i l16S8:

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18/29

INSPECflON:rM:s..13JIS

10-I.2

wear'.J.. 01l.er group. - Check oller1:ort'it and spring retention

1n receiver. Sides or oiler sllC1lld11,e :nuStl to 'sides o r receiver.'Check .oiler pads t'or ~ra,ylng and absoq;tion.

!:.. Recoll. sprl.ng. -Inspect. meoB spring :tor rune t.1onl ng,de:tormatlon. 1'racture" an.d. ;set. -Free lengtn. or spring (Al53teJi24)is! 1.0.00 .....25.ln. c~ Ialst be t.ak~ 1n renovlng an.d. repiacingthis spr~, as it 1s apt to nyloose and. bec.ometw1sted betweenacti!1ator am pllot. t-esu1Ung 1n de1'onna.t:ton wh.1.C.b may;caus.ebind.1IJg on compressl


19/29

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20/29


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22/29

MAINTENANCE AND REf'AJRTM Q..1215

13-14

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MADmiWLNqE .All) mi:PA+R

'Geillera.l. -----.-.-.-,..---.----------.---.--------~--..,..---.---

I nstr uc tio ns : to r m aintenanc e an;1 repair ------------Care and clean!.ng----- ..... ------,-------------------care ant'I clean1ng in Arctic cU.DLt;es ---------------LubrlcB:'C:.1on----,----"-------.-----------------------.--Materiel. &ttected by gas" ----.-----'-----.---------.,---

Paragraph1:3-1415

1.6'17

1S

1.;'. GEl&RAL~ -!!... Th.e ma.intena,nce and! repair or 'the1!hompson SUl:Imac.I11.ne Gun. Oal 45, Hl.928Al. as ct"rered in t111$lIIfjDial Is pri.mBJ'1.1$ a rep'l.aceiilent ot lfor'n or bro:lten part's.General. dJ.sas,semibly8lldassembly of the gun l.s covered in.m 23-40

..!!. lIhe:r;epart.si,. assembl:1e,s, QT' :parts ,or assem:b1.1es,aret:frOken qr worn so as to ren"'-er them: Iilllservieeable. tfi.ey mu.stbe repl.aced :tram stoCk. orten only parts: ,at' assemtil.les rill bebr"Oke1D or 1roI"U;. w1lere 1 t -.ill take m;re time to remove the serv1.CB-'able~s :trom tbeassembly t.;ba.n the p3r"tsare worth., the assemblyshotlld. be -serapped~ Parts do not, alway:s lnter-changeand shotlldbe' ,asselQblell b9' seleet1ol1~

. rn general" Jm.intenance opera:t1'ons ar-e ot a tirstaidnature,. perronJie(i by queiJ.l:tled Butt at Q'ok. assembly. - It'the'but t stoek 1s not hel.d rig1 dly to t.he .t:rame by t.he Slide orestell, the raul.ty parts shoUlLd. be repl.aced.

(2.) lfl-ame.- When the name 1s dama:ged ito tbeextent,that1II)proper fUnctioning or: tlle gun resu1ts,. it moUld be .replaced.

(3) Kl';a.zlne catch. assembly. - .n tbemagRz 1 ecatch does

-21-


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TM g..1,aUI

1.4 ORDNANCE MAINTENANCE.THOMPSON SUBMAOiENE CUN. CAL ..5. MI'9:Z8A

not, J)"old in magazine t1rmly. :1 t shoul.d be ,replaced. Cback tosee 11' the fault 11es 1l:l, the magaz,ine.

(4) Rocker and. rocker pivot. - 'The rocker or roc~~ pi vatsbou1d be

replaced 1,1'worn to the ext'ent that automatlcClrlngcccur-s w1th the rocker pivot ,se't at "S1n.gle".(5) Sear" trimer and pivot plate,proups. - () When the

bearing surt'aces on the sear" trigger and the p1'1o"t pJLa,tepinsbecome worn to. the extent that maJ.!'unct1.aning' ot:the gun ~.sUl.. ts.the worn part or parts mould be replac,ed.,

(!?) It e1 trer spring ::r1.ngeron the pivot plate becanes setor broken~ replace tlle pivot plate.

. Receiver and. barrel & T O O ps. - (1) lR,eceiver group. _,(a) A. re'ce:1.ver ~to th,e extent that malrumtlon1ng or thegun results sh0Ul4 be replaced.

n o .A . worn ,ejector mould. be r.eplaced.(.) It' the :rr~ latCh or aperture becomes worn SO that,

t,h,e ftame- 1s. not securely loc.ked: to the receiver. the l,atc.tJ. orrece1 ver shOUld be replaced.

(2) Barrel ,group. - (~) :U: 1t.1s determ.1ned th,at thebarrel Ls unserviceable ~y inspect1.on as prescrt bed in paragra;ph10 . ; (2,), t.ne barr",l should be rep1a.ced.

(~) To remove barrel. diS&sSemiI:l1e the gun~ wedge abl.ock:Q,r hard wood 1n~eJ. Vex" to preVent: spr1ng1.ng ~ the side. c.l.amprece1ver Ln a vi.se With .l.eatll,er jaW's and. unscrew barreCl ~romrece1ver~ using a :st.rap wrench.i1' 'harrells to, be scrapped .a p1:pe wrench may be used.

(_) 'When 1.t is detF'.nn1ned:to .replace the barTel. thet'ecoi1,compensator andt.ront sight. 1.r in gooa cond1tl,OD. Sllould be:

removec1 :!)"10m the der,ectl ve barrel. rOC' asSembly to the new barrel .( 3) Rear slpJl t group. - Ir the rear s1gtlt hasbee.n broken

or bent out ot: l..ine. ~ Ilamaged parts or the entire leai asseui.blyshould be replaced.

(4) Bolt, 8,t"!ltlp., - (:!!) rr the ::race or "the oolt Shows s1gnso r wear. or nr.1ngpin hole .haS beccme enlarged. thebOl.t Mouldbe r.ep~~ed.

(~ Th.e extract,or stll~ul.d be1'ep1.ace(l 1!' 1t 'beccme'SQ~ormed.

and does not extractt1le cartT1Q,ge pI'IOperl.y.(..2.) lrthe nose or the ::r~pln beCOIIIeS wrn or deronDed..

the- r1r.ing p1n Shou1Q be replaced.(5) ~. - It .1s or enreme: 1:mportancethat the l.oCk be

in good! cond,! t10n wi. th au sU.!1i1ng 9.1I"':teoes smooth and. pal1sAed.otherwise repa.1r or re,plaCemeiil:t ,1,8 neeessar,t .

(6) Oil.er' gr


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MAINTENANCE, AND RB':AIRTM 9-1:11;1

14-,17

:tere ldth action or ree,a1l1l1g parts. it shoul.Q be replaced.. Ithe oll. pads ,are dl;r'tyor ,,"onoe a:bsorbo.1,l 'prope,rly . replaCEt . t : l e ' 0 1. 1 e r .

(7) Burrer pYu:P' and reeot,I sJr1:ng. ,- (!!) l::t the bufi'eIpilot or the pad, ShoU.l.d. bede:t'ormedto the extent Cd h1nder~proper :nmcUon:1.n& Of' the gu:n~ they shO\ll,d. be .replaced~

(~ ;Ir :t.hereco.1l.. spr.!ng :is k.1nked.- or ~et~it, $ho.ul.,d breplaced.

_!. t:!P!z:i.nes. bOx and drum_ tYJ)e. - :u "the' springs avewealc .the)" DIlSt 'be ,replaced. 'In the - drum magazine~, the -en~:1rerotorsb.ould be rep1a.e~,. U' the magazi.nes arederormeci :60. they w:11

Dot l.ockin

t.be ~n properl.y or prevEt'lt proper

acti,O\J'JJor the

spr1.:ng. t.be t'aulty pal"tShOl.lll! be replaced. Ir 'the lips arebent or out or true or (le::rort'l'ied so 1;,hey 11.0 'nat :ee.d. eart!['"l~esto tlle gun pr~l_y 'and! cannot be ,re:pa.1red., t,ne part sJ10u1.d be~.

15. CAREAND CLEANING,. -.!!:. l'"t'is or great lmportanc~,that the materie:l be kept abs,olutelycl'ean aZl. and. !'or mat:erlal. useil,'l'M 9-800 and SN[" z-a.,

_, ,2'.3 -


25/29

TN ... ,2115

16 ORDNANCE MAlNTENANCE:THOMPSON SUBMA


26/29

s e c t i o n V

R&Ii 'EREil l lCE$

standard. nomenclatture lists - ..--- ......------ ..-----,---Expl.ana:to.('y pUbl1,.Catlo:lll;I: --- ...-~----------,---,----,---

19 ~ STANDARD ~CLATUHE ld;s,TS. -

A,. AllJam:!tlon. revolver andautomatlc p1.stoll!: . . C1ean100 'and. pzo,eseI""Vigg.-

Clean1.llg. preservl,ng' and l..ubrlcatl,l')g ma:ter~a.l. re-co1,l t'lU1d,s"specla1 ol1.s, and s1.mil.ar 1t,ems er1.ssue ----------.--,------,------.------.---,-.------,----

SOlderl:Dg. ,brazing,. and welding materlaJ.s, arid re-l,at ed .1 .t,ems .-.-.---'------'----------.---,----- -.,.,-,----,

. Gun ma.ter1.eL.-Gun,. SU'OOl,aCll1ne~tc,aJ.. ,.45.~1(lq)pson,Hl9,2aAl --------TOols," spec1al repa:lr." 'aJ.lt'omat.1c guns:,. ,aut0J!D,8tl.cgun

materl:el. automatl,c.ant1 :sem1.autOma,tlccBmlOn 8llCt'mortars -----.-------,-- -,.,..---'------'-'- ..-'------.--..,--

TrI.lck. smaIl aI1D:S'j, re:pa1r.: t!i. ---- .....--,----,-----..,.---,CUr.rent Sta.ndard Nomenclature L1sts are as tabulated

here. An up-tO"'13.ate l1at 0'.1' SNL',g is, maintainedas 'the: "Qrdnance :pub:lleat1.ons:tor SQpply IDde'x" --

20. ~y PUBLICAT'IONB. -:!:. AJIIJ1im..11.on, geneJa1 --------.---,-'---------&. Q:le&D1ng,: preserrtng:. .1lJibrl,cat:ln,g, and!

~l.dlnB mater1:al,s,. and. s:1mi1;al" .1 tems .issued. by tl'le

ordDance ,De];lBl"tment ----------- .. ----,---:..---,---,--

TM9>-,UUS19-20

Pa:r-:agra, pb.1920

sm. K-JI.

sm.. K-2

sm . A-36SJrIL G-72

"m 9-850.. Otm ZiIa:terte16De:tense ~nst cbeiD1.c&iattack - ..----------.----,-- 'ftl 21-40Qrdnance 1IIB1.ntenanceprocedUre '...;Materiel inspection

and repat.r ,-------.---,---------.--------- 'D'( :9-lloo'IllOm,P80:n :I;IIu1lrl:laoll:1nagun,caJ. 4.5~. Mil'9;aaAl. a _ _ _ _ _ft'I 23-40

2Ci-


27/29

ORDNANCE MAINTENANCETHOMPSON SlrBMACHJNE GUN, CAL."S. MI928AI

Actuator~ inapeit:ion ,o J :. ,- - -- l.5~'~ el.1.aat,.eI!l~ e~ 01 gun

"in ---------, -- ---- 23

'B

B.a.rTe1, how 1:.0 reDWI!I --'--,--- 22:eat':t"8l. ~up

lll.W;lt.rate!d d 1 ,1 !Ia .U & alllb 1.e 4 ,- '- .14:1nspecUon t-------- .12lJmainten6nee and ;~pa:I..r ot -._.:: 22

BQl t g ro l lPJ 111.lstrated disal!l~ --. - l.8.;,nspection or ----.:..._--------- 15maint.ena.ne and' ",:pa.j.r or -- 22

B o. re., cl,ean:Ln.tt. Qt ---.-.-.----,- ,23Box _ga..ine (20 I'QQnd.s)

iUu8trateclat;t.a.ched. t.o gIm. -------~---- Jd1_a.$8ableid -------:- ...- l..9

1napec,tion o~ ------:-------- 17m.a;!.ilwnance !!:l:Id repa:.ir' ,0'1:----2.3tube. irispectiOllo.f ---'~-.'_;--- l.7

Bu!'f"ergr'Ouf.iu.speet.ion ot ---------- 15-1.7maint.enanc,e 3nd. repa:trQt -'-- 23

8ul.ge 11:1 barrel. ---------------- 13a,ure. r.cmQVing fri:m SlllOO'UI

.surf'ac..,:> --.-.---- .------.-,-'----- 2:1Butt s~ock as~ly

ill.ustrated diis&s~1ed _,--- 9illIJpeci:.ion ot --------------- 1e'm&Vl,tenance and rep.d... of' --.-- 21

c

Care of gwi, -.------.----.-.----.--- 23

Cle_r'~ r.1n., bore ---------- 2)C:l,san.i.ng of gun ------------ 23COI!IlPeneat.o.r, 'nCutDI!II"

1!I.!!I~bl.7'o.r' to :11ll1j1'b&rrtU ---- 2 2 -~'v:in&-----'--------- 1 . . 3

D

Or.wa 1'Ii&g(llt.1n,e (50 rou.nd.a)illustrated

attached to gun ------------ 4d1_.aR.abl.ed ---'-------- 20

inapect. . :1OX1.0 .1 ' - -- -- -- -- -- -- - 17ma:1ntenarie.e ... drepai.r ot ---- 2.3rOt.or -----.---------------- 17

aprlng C&!le --.,.------'----.-,.-- 17

5Q-i"Ot.1lld -..gasinl!l (selll Dna

.... ine)Fire, cont.rol. l~r., $8~t.tnc -- 5-6

Forep. group. .1n$pecU.-ot --------.- .. -.---'.. --i3-15

p". _

. 1nllllp8C'tjiOll. or ------- l;.O~fi!lnllll.C;e lind: repaJ.:r ot --. .:U

F~. s:z'OV,Pe...~ in cH.eassealbl.Jng -..-- l.0:1llulSt:ra,ted oU._seea:ibl.ed ---' - l.l.:1n8p$Ct.iOn c4 -------- XO-:1.2'ma.1n~e, ~. repa1.r ot - '21.-22.pa:rte co.poaed ot -------- 5

Front s1Sht.~e.s8lllllb.q o,C to: n e w~l -------.---. - .~ .

G&s. ms.-tend ,aftect..;sd; b7 ----- 24Grouj!llI. gun asseillb1y divided

1.n't.o --~.-,----------._-- . - :5Wuel't"ted ----------- 7

r

Inspection Q ,t gw; ---------- 8-17,~taat.Qr ---'-.---.---------- .151:l~1 'grt;lUPI --------- ... -.12 J l.)'bolt 8l"O yp -_ ....__ . _. 1 , 5 -'bojc .. lilagadite --------------- '17"buttergr


28/29

INDEX TO TEXT"I'M ~12t5

.1 1

.... iDe, t7J)8s ot --------- 5box (.!!!. ~ -saz~)30n s\Jlllaaci'il.ine gQn, cal . 45 .rfi928Alcare and el...a.nins. or -------...,- 2,3-de.acrlption of: .-----.,-"'----- 5-6g&5. Il!"re.1Iltood by --------~---- 24,'.!.lls"rat.ed ------.------.--- 3,. 4.t.n~pecti.QDOr ,------"------- B~~'71 > , a b r t c a t 1 Q \ o f - - - - - - - - ' - - - - - < 3.Il\Unt~Dance and repair o~ - :21._2.4~chanil!llll o.t -----------...:----- 5o p e r a t i o n ot - - - - - - - - - - - - - - - - - 5 - ' 6

Trigger group

ill'lu!ltrat.ed --.---------------- Uin"peetlora 01" ---------.--:-----.- .].2aai'ntullIInCe and repair at ---- 22

2O-T'01IW:d .as.aloe (eoo Box_"zine) -

w


29/29

TM 9-121"15

.. ' ORDNAN

36778320 tm 9 1215 technical manual ordnance maintenance thompson sub machine gun cal 45 m1928a1...

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