TM 9-240 - 37 mm AIRCRAFT GUN 1942

8/4/2019 TM 9-240 - 37 mm AIRCRAFT GUN 1942

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t / V ' J r , c L -TM 9-2'40

I~

. ,WAR DEPART'MENT

TECH ICAL l \1[AN ALII

3 17,MM AIRCRAFT' GUN,MATERIEIL M4Marich ,30 . 1 '942 II


2/29

F re e o n B O C N

'nit '1-II:U('~U. :u.'\.' ",\I...}1'iu.' ::!m

W.\lt U.~ljAI-t:_:;Ut-:Nr"'\\o'!il'ImNI; ."'. 'luI' ,() ilU, l i n e I::!.

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3/29

TM9~O1 ..3,i,\IM j\m. 'IM."-'(,;!L"X Mi \ '1 l 'I I. li IU~ L .M ,I

~. 1 ,_ ., ',~nI.Cm 11! urul !I 'I ' l ' : -:N\". ;~t ion. Wj!ml:;n1,btil'ut'I'n'I - .______ ~iIn F P t io u ..::_ - - --- - --- - : : t !ffilt"luu ~'.n~ U[ lila I,~.;':\;w 1~h .lIngIII m ou 11ed iuirpln ne .__ _ _ _ _ _ _ _ __ __ _ _ _ 2U~~t~l: l l ic~.to n jll!l"lt ~'.~dn ~ J I I s _ _ _ _ _ _ _ _ _ _ _ _ _ a uU 'l"UP nI~.~~I - : ' r r ; ]('It'lllll) I~ - __ __ _ _ __ _ :~~I('WuUlli " 1 O aml ulJr;,~ i\"t!s= -=_"", ..,..... ;l~il)n.' \'1'\' Jth ,I:'~ _ _ _ _ _ _ _ _ _ ;~ l

lX. &\UIIIUmi'tillll.fi n(,I':1I_ :l."i,( 'h ~ H i~ nt iuu --_ --- __ _ _ __ ;mld~'utificldOU .__ _ __ __ _ :rl 'Muclel _ _ . ---- --_ _ !):-..,i\.~n,nluuiti.~u~ I t ' l 1~lubltl_ __ __ __ ___ :.~~~~ \ 1 11 111 U 1 n it] o n dllht l":!J'tL__ _____ ________ I ~IV'lI i l l l ing and m ar l ~ i l l ~ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ] I( "l I' l'. h :I .l 1L ln n :. r. a u ll I IW , ') o ln '; ~ t i lu : II . _ ____ _ __ I~; \ l I il Juwiz II ~\Il11n'1 : 1 ; _ - _ - - - - - - - - - _ _ _ ~ ; .PreptU 'l .11 io n flU' ~ du;.:; -- _ _ '1 1l)~lck.lnlr -_-.----.------.~_. . ,____ .~:,

X" (kg,~n in t~,pn "~I.illl" l l lm'r $ nnd t l t' 1 ,; ' !; : :; o l ao l' i c O~'gl.lnb::~len p~lll~ p~n'l .__ __ l~1 \ . ( 1 { ! rsso rie .-_ _ _ _ _ _ _ _ _ _ _ _ _ 1;

. " U , . , ' t : : X O U l x, r .ist of l'l'fi'Ii'\'1 't'~_ _ _ - __ ]II

F ree on B OC N ~ E{:'D."ION J[

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l. SC(l,pe.-tl. Th i-II II!!ua l m : - . l)nbli~I '~!. 'd t'UI' dw in r rruut ion :UlI~guidl,m:p n~ ~h~usine 1 1 1 ' U b ! i i :~HIIservie S .h. J 11 ll ,rM itin n h :u a [ leS{ ' r i~l , tnn n ! the a~-lnl1ll l Ullllu!lm'l k' !fun ),~ I,this n mn ual l 'outain h~t'hllllit::,.ru inful"umtiun l lCqui 11('~ ~~"I" Il hI ! l :u ' fI 'P~ '1 'u ~ 'C~~M~LIIUIidt'Ht,i, 'nt~ull of ~.h!i'~ r u m L o r ~ e J . .

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Tm: '9 1-2 41 11,..2

c. UISH~~ Ilnh.~.~'.l". !lI1My. und _nd, ~'pnill". a. IDa) be h:u e l m l ! ' d byH !o 1i n :: r . !u 'n ~ ~MI.'ouul"1w il l b u n rl t'l ,t! lik l:'u by 1 1 U Y capab la lli nlO[~I"r.,J . J n a ll ,rm ;( '~ \\,'h pIli.' H u na hu>t' u r th ~\'p'l~~,r i,ld j II~hnl'nt i~l!'-yond ~he SCumi( ' n~' f l~(' iWjf"s of tlu- nm h 'llu ' Ivsp r,U1! "i bh" um 'd~umC1 l- '! 'in v ~ ('~ ' sh uu Id be ~nfonned irn errl (''I" ' l1!i1l. t l'n] ned.1fl1i! lfiOmlIC'~ '"~ih~IIHuhl I, loub! un d l"lui~)nll 'n~ l I U , . y bl ' pl'n\'idt.I. tW o l ~m r)C .' i n . ~r ue t i.on,ifi:s~ n~.

2. :Di.\,ti;I..-d, fhw.I( 1) ( 'u l ~ I"'1'.. \~in un O~1.1:""'" i neh ,1 (: 2) " , i il ~la ~ uf .r un \ \' it hunt n Ht~ md 1 1 . 1 . ' 1I1nnmbL_(:~)\\rpi lgJII o r .3U-I\Ollu~1I Im~mf.hw dn _( . . ) "" 'I'~ 'r]l l R~ 30rumul lnll;rmr.im' "' l~' lh>gL '1 .:]0 _r io )'\\:\'iljr~d u r 15.I'onm:l 1U;t1!=~li:ilu du ._(~ ) \\i"( 'ilgh o f 15-Imlm~ IOUg'IZiill' Ilj lllt('- rI, _1 ( 1 ) 1 "~'I:'il"'ohl IIf Hlb d _I t ) 1 O\"'1'-nU h'lIgfh .o f glln _~ w nd u .. __,('!I) IJ In. . . th o f II ullt' do -(10), l lm!:z: l . . , , ( ' l lm i t y__ -_ - f('(,~ mwl ' s~('nnd __(U) CyC~i.lImh, of fi n' . Shol l ' 3 ! e ' I ' wl fl im rh ' __(ill2) Cl~lU : i J' of ~ 'Vot ' ~Cl i i '111~~hnu~


4/29

'T M '9 '-2 41 02-4

1 ,. .A m m unitio1t.(1) V~ ~ight of nl:W rnnnd p o n n d s _ _ 1. '9:3(~)Wf'nght o f 20 round: hl pflekhl,!! hn x ~io_ m( 3 ) D im en sio n s o f 2U-rUHU~1 p a ek i I h i ! ! : Iu I ~ , , _ . ow~h t~~_

1~1~. by 1 I. d V ! u L y 1 :~ ,% ::3" Cau1i;i.on~,-,no~f n ]llr~: ' :Ji :t :!!lm~ di~rf'l ' f rom. other ~runsin th:~t

b ee au : e 0] their jnneces ihi I it,v duriug m~l'M,. the-II" is n o pos.'Si,bHityuf thei r being ervie ,t l after HlP, airpluue has left the ground. It i.th e l fo r m o s t. im ]o d n n ll lh n t an n il ' ")':dJ gun be '1,'1',)' c;lI 'f 'fuIlJf'~ a n ed , lubricated n n d pla ' l ' 41 ill wo~ 'k i n~ urll ~' h"fol"l[' It is !IS'sem bl - tl in t l uo n i l'( blane" Th e -funnwin~ pUln~" . ho n h I b ' ~erupu-km . lly o b. e rv ed :a. A .]]I TI'f 'S p~ 'n d ~v es m us t be r r l U u H , t l from tho ! ! : 1 I 1 I l . Tn ~l~lh i~it 1 . neeessary to rU!'l:l.sSt!lU~ijlehe pn~i.rf' lm ' ( - 1mni sm, indndi,ugnwd~hjn~' spl:'i.ng assemblie .b. ' ;Vlu"u~' ' !I ' 'N' the t uhe is removed fl'QjIH 01" ['(ns~"ll.Ib]f'll to t ho ~IIH"th ' Io ck frnm e rnu t 'J(' fl'tl'[l 'hd." If t h is i : - ; III j a]nnf ' , Ihe l'xl m, -lorwin h IP ' d ",fnl 'med andl"'Plldl."l't~(] us ]4: '%;,e. Thp reeuperator mu.l ] e fi n II win. l i ~h1 l' co il o il , . ~.AnIIY[ rle ,H i.,e ntio n N o . 2 ~% D~ to th e p ro pe r h '\"f '~ ( pilI '. :.n).. ' ~ nHn n ' todo 810m.ay result in ~Ver(1 fillllmlfl'('to g un flh !lh an f' ~lnd pHo tod. ']I'herecuperator mu t mol b~ IJbi;\I1!'!.;;('lnhlpd eX('{']Ji by aut hOl'il\l.'~'d

o rd nan ce pprso uup"1 s in ee it is v ery diUir 'uH t o I l 'l l l ': :O ; f 'l nMrrwnpf ' I 'l y illthlf' fi p 1 1 ..fl. B e i n l'e t h e ! J'u 11 i s in st 1 1 1 ] ( , 4 1 ]]1 ] h ~ airpluu its ac tio n should IU'

I e , t "f 'f l enrefully lu J ham).F re e' o n BO le N

DESCRIPTION. ' \.ND FlNCTION1NGDeSCT]pi' i,o n - - _ _ _ _ - _Flllnld](J:I'Iing _

P!I]'m~ r4l! 1 1 1 1_ _ _ _ _ _ _ 4 :

4.IDes,criptioiflL.-The :1'7rn m auto mat if' : ; ! :On l l\,r -l l is n n uircraftweapml. It, IIS'S tlu ~',nt>I'~~1'lF rl'~"nill to In;uLI in', nncl l'jt'!'t pl'ujl 'rt il .t ' :o.automatically, It eo n sis ts n ] I wo lit in ct P ll l't8 1 '1 "C 'o il in .0 'and ' I Ion1 ' ( ' -{'om ng. The I"l" oi iiug portion is compn:-a [1 ' ,f tube, tub > sxtension.l'et'lrp('l'nfu~' piston 1'0(1., lock frame, ami ]nek :fnulb(' driving ~pl'inw:~.ssPllrlhlip~. The uOlu'( 'enmIUI!!: ' ))('1]'1nn eon~ i. 'l o"l~ i " 1 w t runnion LIIIL'L1tss:(ul,b~,y, :r,c~d1m:; ; I l s spn lb l y : am l 11('Cllpf'~'n~0]'t; ;rl iwl 'r~' U~M.~).

'I'M 9-240e5. Fuuctio,nin,g.-The fnn ,tionin~ (If UU'l vartous rueruhcrs (hn-

ing the firing cycle is as follows ( f l , , " ' . .30) :a. 'hen the firing button is pre sod Ly ~,he operator" it enm es ~he

solenaid nn the top cover at the [''{lUI" ,uf the t ~' l Inn : ion block to pu n thet'l-i:l,!gt'!l'., Tho trig-gel' pulls U te ~r]j]'gel: bar, [. 'O'brHng the top of thet r i A " 1 ! ' e l " [ever to o the rear, At the s a m e t im e t h'ebI'e{'chb1oek]11 bat-tery posicion. elevates the from end O T the trigger tripand rlepressosth e i'I. . ',U. TII]!:1 Tore s the t .rlj: !;gcr ] ver co nn ecto r, w hich is pivotedat th ecnter (If t hf' trilt!~I' l ( ' vPI". to the rear. Thlf.' cnml inati., n of

th~:-:e two e - o m l itnorl~~he elevation e rf the br('~'chh~ud, O i . u d ~ht' p u l l i n gnf the td~;.,.rcl', causes the tr i~J .!,cl" connector lup]"cl"~ the ~t'a[' rear-' Inu'(1, The seur rotates n ut o f {~ IV ':l "p me utt with the hammer. whichis d riv en fo rw urd by it !S1}rl~) .guutil it " ' tr i kp l ': t h e firiug pin. h .flri n~ I in t l ' i 1 l ; : 1 ' ~ the pri mer and the prop '.1liug dll~u'geis i!,",ll]tefLb. ':\'hen th' cartridge til' 'is the 1; l ' cu . iHn ' pal't arc all driven r j~ m -id~y buckward. They n'lOVe a a unit for approximatuly ! i ) X ' inches,after whi, h the ccunt n{'t:uH uf ,the tube and urho ('xt nsion is bl'i!!lmby the ]~ecup rrutor. The lnek f~.an.e and. dri ']U,g" 8p~]t]gl"Ods COJ\-tinue to muve rearward until thi! lock fnune strikes the bu:lfc'l' and

5


5/29

i s c :r H :! l'M ,an d hf 'ld by th e e !lrl 'if '~ >do ~ . M nl"t o f tl i!e enel'tt1r o f recoilis ahsorhod by th e ]'~cuper~llol',c. At nbout oue-hnH'llH' recoil distanee. thfl [~])f:'rntin:!l: lever, tbe

: fo~' \ \ 'a ~:d pn r t 0;[ which .II;] s b f' en 't'nAlt , f rml iUa s lo t in t he bn -ech-block: is rntf.~edby cams. This uctiou fm'.c:es Ow ~ll'e-echb~nck down-: ,: a ]l r l u n t ]]i~ rests o n the hn;~f'chblock s:Fup. COHS~{IUen~]y Om breechrs o pe n, so tha t w hen the l o ck m['ullw an d tube extpn!>l.rm, r::epU'ftte, the .~.xhaC'1rdka. W8 theem pi"J' ca rh']dg'(' ~'!I~eout of Ihe chamb e r. As thetube extension moves fOl"lnu'd. Ule rear end of the ej,eetm' is cammedupward by the ejector op~r~rtjnJ,!stud on the Ioek frame (hold baekhy the cal'rieil' d O I! ?) . T h us th e itu'w:I!. n ' ;~ ( 'nd. o f th e ejector ]!; forceddm"i'IHr~J'd, strikine the c~:lfIJ]ty ease t~ud. knocking it out the openunder slile of tho trunnion block

(l. A.sthe tulle extension mOV'f: 'R Iorword, a stud. on its right sidsm~-n~e 'Stho feed l e v e e 'fon",,-an]. H u l n H rn n 0 '1 th e f,~ ('d ]cv er 1 5 trans-f(,l']~d to m o v em eut n f rhe m l ! l' d s l h ie th ro u 1 !h t]H~ f ee d 1f :'l 'e ~ '5Wi r ],f~ed. lever cr:~nk, and the feed s]jd,~level'. The feed slide rnon'~ ]n~o"'T'lrd. H w, l 'i~ ht o f the fe ed Lo x {Io ok in g-fo rw flrd .), ca rry in g w ithlit H l e ~ f [ ' e de ~ lip an d tnnsequent l r th e n ext ro un d to be .~hcd.. . As ~ b e~'WW round nppreaehes thecenter of the f eed hON;. it is enmmed down-wtll,t il by the st ripper c:]moulhe feed bvx b.am~. AI" the smue~illUe~.'~trjkes the eureier catch, lmSQ~.'1. WiU1hd.ra.w.ing pR.Tti~n.y eX~,e1tl!.dedendll ieSiS belt,~a. Remove

tho feed Lox 'C'OV,e.~ (fig..24) .b. Holding the l{,ld~ '}aw l Ii Ite r ~ tut1 aud the cndriagc f(!'elif ' l"holding IJU\~d released, gil id,e the helt out the left s ide of the Teed 110x.8. Un]otill,ding gun (RUY mn.gn'zill1.e).- Uetl':L et the lock lr~nuUP.thus ejecting a ]Il'e ruund,


6/29

' r o r : m : '962409

I'A FSO 9t. lmk.G. Rt~tl':~ctthe loek fm.me.d. Pull the loading haudlr' twice ~.(I the rear, The ~UH is lWW t~~ ' l~l .vI() il~'ewhen the lock fl'rmw '('~~nH'f>OI'\YU'1.


7/29

r::fN 9'-2i4012

I'htr..F$O 94E1

12. W:[thd'l'awingpflul!.'tinUy expended 15-1'ound. mR,g"~zine. -(f" Uem.ul"C thefeed Lux COYPl". Ho~d]n~ the .feeder ho]q]]ugpawl rL'1t'lilS~d.;Qud the 'fm'~h'p pawl lifte~' stud a'~pn'S;Sf'(Lrn5h the I ink" , Idithe urficuluted belt lmt'k,nu.'cl t1mmgh the ft':edbox uetil tlwy ;,L n'entirely il l UI!~ umg"ll:?:iue. .

b. Dep~Xlgs th e t ;, pt 'i n g l a tc h e s n ru l Iift nwa,y t he 1 5 -r o lU l f] m ; ru .. ga z iW'.

I'M 9_;240: 1 . 3

D IS -A .'~ El\ lil l3 LY A N D A S~ K\~ .B LY!'t~I"Ij.!rjll,h~~H

l~H',17n slQ

n~l('kllhl~'~;,n~"(-(f"l!b]flt"kLII'(!k: il'ji.mt''Il'lliw l'XJt'l1l';l.ll __]

( < i t ) Hepualc tlu- twohalves o~flhem:Qg-azilU> by n'moying-~h(! j \\'0ho ] t t- ; j o i n i ng lhB r i~ht 1),0 the left huif a t the tu p (fi;,! . 10 ) .(~j) Depress the spdngiateiw::;, nml pull away tim len hulf {fig.

12). F re e o m BOC~I

11


8/29

'JrK '9-2:40113

(6) H,f'mOVf' lh~ c'otler pins f :~~cnl1 lhe kl~m~' I( ' t1 head !1 lUS holdingthl' right half.

('7) lVithd raw rearward tIM' pius holding file righJ~Hdf t~l theft~~'tlbox, :md puU :.]\nl~he right half (fig. H) ..

TN 9-'2401:1-]4

fl. To tt'plMf'."--( I.) Pluee ~he ri~ht ha H ]]! pn~1rton on lllt> f~' r 'd 'box,:II~d iuse r t pit J ~ jl~UIcot ~e r ~~iU!'.

"2)P ']a{ '~ ~ h( ile f l hu If ill p~k.:;ilthmo n dllt' s t :nd : : ; (DJ th e rl'C~~h [~x ,11md~l~~m't Ih aJ rlu- hU ,c 'lw :-: tnx' pug~]gl'tL(;q, lus~i.'d i[ he t .WO lmltl'i ,join in g th~' right to 1 . l w ~ ( > f ~ lm l f lrf th e~~~"lg;;~ '.]uf'.(4) Guk~(> dw ~'ntll


9/29

':I'M 9,-2;4014. T.M 9-240

b. l ' ( ) I " ' " J~lft('t'.- [J ) ffi~{'n15~'t'rn1 e~ 1 :w rrui III ion h lo d '! : ~m~h ] n : !. :n u t hotul\t'.

(l ~~f'tnldhc - Iock l'ran ~('.(3) ,'(,i'Pl"'! lu- tuhe into .~ilt' PX~ - n s - i e m hv luuul nnt il it s~ops.

F re e on BOC~I

w 5 :Q I-::)I- "t, I} ...I:;!; UU zf- ~_J m

(4) Pu11O tt t the tube. The ~runn ion block bushing w m be pushec~il.kn'wardund out by the ~houl~~e~'uf the tube, It should dum be re-moved by iUSQrting n SCreW driver ]0 ics slot Q.~).J.sopar~lting its twohalves,


10/29

T,M 9-24.0Hi:

J ) ' , J : O nl: IIJ.-I"ube l.o~k.

TM 9-24014

(4) Bs -k off, counter ']0 Dnv i se om -ha H turn .(:-) With a quick HUI of the w1"i t turn h~ tube in 0th ext n ion.(6) Look into the peephole ill d sc thM, the tube lock is propcl'ly

e n g : l eed,(7) ~ :f the tube cannot be locked ]t wi.Ubeneoessary to stun the

rear face ' of the blU"11. l1 until it ' '1 'iU lock.Fln~een B e C N


11/29

Til 91-24101;:;i~]6 T.M 9"",24016-:1.715,. Back pla.te.~a. 1'0 l1et}~ooe.,,-JToldi~~~ the back pht~e la tch ~o

the rear {fig..g), !-llidHIE!! pl;mtedown aud out.b.. To ?'eplnee.~]nl"if'rt the huck platein its s lid e w ,< ;jY{tnt! pu:;h it

upward until its lateh Is .(>n~~~('d.16. Bl'@e.chhlock.-a. To ]'Ctnovt'.-P) R.eh~.H?t ~hf' l o ck Iranie( n r r , '2 0 ~ .(2) .Holding the m-eechb leek !~Jopdepressed, catch the hreeehb loc l ;

(IS:; It Iu 1 1 : 5 nu t ( f a g " 1 7 ) . Flree . 0 1 1 1 1 B e C N

D ." '1 '0 'l'er(,a;ce.-D(;'pn~s5 the bl'ef'chhlock stop nndhold it depressed,while 1-;liding the breechb lock u , I I J > iuto plaee,11. Loc.k :fl'ame.-,a. ' 1 " 0 tetlW.IlII'\-( 1) 1~e~1I}on~he buck plute.- {2} Diseouneet the driving spriug rods freru the ]~J( l\.frame by]l>l~mug out 0]1 the [biving spdng n,d hook ~,;dct]c~and depressing~,hedri.viug spring t"od.heo les ,

18 HI


12/29

1:'.M 9-241017

'Fl reeon B e C N

{;}).Slide outthe luck f~~'


13/29

'J rR ~ 9 "" .2 :4 :0Is-ne l l ) 1 K~idl' l hn! tube extension uut~hnJHgh Hw ]'e~;! l'o f th e 1~I'mll1kmb lock {fig'. ~Z) .b. T o ?':eJ 11ace. (1) I n s e r t t he tube !!'xttl1U310Ib l in the rear o il l th etrunnion Mock un d slide it :fol' \\ ' tmi! in its guideway,( .2) II uJ d ibll! t he b n~p c hb Iock s~ 0]) dBP]"e::lse~ .. srn:-w t he [p ls t0.11 L'oJ!.

nut on ti ;l. !h~~ rna k iug sure that OHe H .M uf th e nut isin Iin e w ith thelop of jhf'b~1er"C'bi .]nek stop ( f i~< 22).

(3) Uoldin~ the I1~Un:II'el 'SHth('('~~mw[tions retraeted, attaeh thedr~ving spriugs to the lube extension bh~.t:ke~.

Ut Feed. 'box pa~'ts.-a. 1 '0 dix(ls~e.mbl('.- (]) Li It lhu feed box00ver latches (fig.~) and slide the 'CO\"~rrOl'w!lrd aml off.(2) Li.ft ont the :feed emnk (rug. ;J{~I).{3) Rmno:ve the f,eed lever swivel (fig. ,BO).,{4:) Lift ou~the fe ed le ve r pin n>hlil'lf'I'pill ( l 1 g . .2 5 ) .Uj,) PuH U iQ feed lever pin our of the feed lever . t tud remov,c(lig. 2{i).

'FII 9624:019 1


14/29

T,M 96240: J i 9

I

I

24

' :' EM 9- ,2 ;4101.9

~< t ~~. . . Q~ i s'i:l

.- = ;Q .;:~.r ~ :1 ~I ~ . , . , ,~d .,; "' : < = " i 0'" '. . - . . ~ ~ ~~~N~~~~,~~'Q rQ

~i~'"." ".~:: ~- l~ I;l 0[f.

I~~ - a ~till !oQ ;;>"


15/29

TJM: '9'-24019.-~O((;)1 I{QH!o,e the ff'er] If'vfll ' (fi,g. 30),{7) ][,lft out the feed s]],JQ]ever pin and the m ( ' ( 'f \ sl~ldl']~v(,l' {Ilg" ~10)." ) Loosen thc'a~'d{'l' p]n lock an d pull the CmTl.er pin out of

the side of tilt' feed box (fig' . 2'7).(9) Lift the carrier out of the top of the feed box (Ilg. 30)"(10) noh-ling lhe ( ':l1!]"r]ere~dch p]unger df'p~. 'f'f' ;s{'d with th e point

o f : ~ 8 Cl 'E "\', ",drivel', ]j:f~ OH~~ he c:an]c~' catch (fig" ~8). Tnke ('al'f' no tto losee :11'1'1 " '1 ' pht n~r and Rp~'il~1,(11) U ( 'rnov e the wed s.lid.e h]td~tt pin by ] i ~ r - t ]Jfl,2,'np on its lock.tUl'nlln_:! ~t out of its recess (cnnnh~~,t'I,[}('kw]S!C). ana Hftln~ i~11 L !(fig. :30}.(~2) Sl1dp the hl'idg.e to th e l..1 ft . : - m _ a lift it out ( f i .g . 30 ) "("un Uoldin,g thncartridgo Ieedor hnldiug p aw l ( k'p n~ s~ >t? rL pnU

th(l! feed sl ide 01l1t th e s id ,e o f- th ~' f f c c - a bo x ff i~.20)"b. 1'0 l . lJ j s emb le . . ( 1) Slule the -fe~(l slide in the ~('ft side of HlJP

f,eefl hox,(2) Hephlce the feed slide hridge,(3) Rppl;;-~e{'hf' f ( , p r J s[]dt' bridee p,]n Ioek.(4:) llitelusPIDt the ~nni(']" cateh p]un~.~r anr l Spr]Hg' : .md. hold ~n~the plungc .. depressedwitha scre,,\~ dr iver , ~'j}'phwf'Uw efll, r :i'm.atch.It 5) :n"l>htce! het no!"if'r ,0 t~i'1 ~f']"t j t~ pi n.(6) TnrnlhC"cal."df'l" pin Ioekinte place.(7" lwphu:e [,hel~rd slnle ]Icver and then its pin.1 ( 8 ) Replace the f ( > p ~ l h'~Y'E"rand its pin .I( 9) lnse~"t the feed len~~phi retainerpin.(1 .0 ) R..place ~he feed~e'\)leW'swivel,(Ll] llephH~H the memJ erunk, iunldug su~'enllil.t~~le opH:ll inf,!; on

{he fe~a crank st~'m:lfHf'~the fl"f'fllf'w'}" swh,p-l and th:l!t j he fee.] ~~'1l!1stud enters the slot in the f{;~d.s]]de lever,( 12) Rpp 1:tep 1be ff'e-dbox cover,20. :Ej l ( i lCUO~l ~h 'Ilte .-(t. '1'0 remo b'f'.~ (L) n 'UJOVC the eject ion

chllie pin cnl"trr pins,(2) ll:\ril:hllnnr the ,ejection dnl~e PJn~ to therear,0" Tomplaef'.-p) Itf:'plflf"ethe ejeC'tion ("hnt'~ pins.(2) lli{cp]nn' co tter pins, maki ..~gSUh~to spread the ends of the pins,

Tn! 9d24021

l"M'~" I:~'anle_____________ __ __ _ _ ['tlnu,:;.rJL [~h:~1[!i\'iI~ ~~'l~'~lg_ _________ _ _~I~~Ld.~~hit t' __

2LLo,cl,,;: fl'ame.-(1. 1'0 di#flH:fI.f'mbif'.-p) Pull OHj- H lP front of~IIHI prri ': .i ~]own u]J theext met or. maki n~ eertaiui h" ~pl 'iu;! d.ol's Iii~tUy out, I'he pxl;nu~tor\dUCo1lilf' off~[",",iilxls Vi]! (HI!. 31)..

(~) ID"Ul"Pl't H Si!' l'e' \~drin:r~n Uu> slot f the o~'"lr~:atin~ lever ~priuJ!lode m:>re~. ~H~hHy lnw~m 1 am] ~'lOtate countereloekwise unt ~~ lIw:r-pdu;! pN'l':-:ln\[! fon:~5'~heleek mit (fig. ttl.).

(:-l} PuU mJl~he s[wiI1lg and fo[k~\\-cr.{4 } lV"IHun' th e CQt~~~"pin fro m'} th~ npel'at]ll~ lev'er pin" UPIIIIOYP

thll operu l inp: I'('Y'N" ]-;lun am] ])ll'ating- ~ever.U ~ } ~~cH1ovethe t!m~kin~levei' pin ooHr:r pin.(6) U~Hl()ve~he t "o c1dn : l! l e v e r pin, Tim cocking l,p.n_']wi U f


16/29

TN 9 ....2410e m

IFlreeen B e C N

~~, . : : = :! ~

TX 9-24021-:23

(lJ) Push the extructor onto i~!;axis pin"hohii.ng the spr]og COUlL-pressed.22, rrube @:x.tens:iolll.~t . .'1'0 dis.a88emble.~ (1) Dd ve out h~'ec~h-block stop loclciug pin,(2,) Unscrew breeehbloek stop, retaiuing screw and remove breech-b~ tKlk s~op and ba :: ,t le e h b lo c ' k s t e p ~"Ct.\in~Hgs cr ew s pr in g.(3) Dep~'ess thehlbehnck platep.]un~el:>illnd remove tube lockassembly "fig., 30) , .(4) RJenmve tube lock and tnbe lock spi~'ing,{5) . i: emoVlB& r ig& ,' "C l' t ri p p in and. blw out, tl"]gge~ t w . ' i . p (fig. 30),, (B ) ' U emoV" e t l' ig g er ie v , er pin\\" h l c h ~.'eleasesll'iggcl' a s s u r n My ~

tr igger lever spr ing . und tl'igli"fCr l eve.t spr ing plunger,(1) R,pnmVi:l ejf'ctrw stud cotter p~n and nut.(8) Pn 11 o ut 1he ejector st 'lIld l' nfte~ s .ing ~he ejectm.'~ sprIng', and

]"I lnneer (fig..30) . .b. TO ' f lR . \j 'n \ l~M t '. - (] !) I n se rt e ~ e ('t fl l' [' :-spt'ing and I , i .ungm,' into its

lrousiuz and l'eph~t',~e jeetor and stud OB tube extension.{2) SCI.~ew onejpdol' stud nut ~n[l jus~~tcotter pin.(3 ) 1Jlac@ h' i . : !?gE!~:- leve:~ ' ,~p,dHg~and plunger in pillru:m l ind inser tt ri~f"rer~.('n"~pi11,(oi} H~'p],lCCtrig~"el" h'ip IUld iu~~rt,i~sP]~1!,(5,) l{eplace tuhelock ~~nd.spl.ing In ih; housing,(6) 1Iold. tube lock plate plunger depressed and insert tube ~o('k

plut into its housing,(7) Inl"erl bre.rcbb~ock stop l '~ t f l lniu.g serew spirilllll' into bre@C'h-

bluck !5 : lop . Inser t hn'ecl~Mock 5W p . Screw in b~'~echb~oek 5 f u o p re ot ~ ,n m n g : :O ; C 'I "> e W . . ~ 1: (> p ~ ru 'o e breechb]{)clil;:stop loekingprn,~ m , I)rri.vi~g s,p!l'in,g.-a. To di8(l8861nble,-----o(~) UnSC;l 'BW dni viug~IH'iHg tube IHI.d c:q>.(2) Remove eetter pin and unscrew dr1.vi.ng sp~'ing rod! C!o.nu~eti{)in..(Ii . : lold : f iH~~t on fro n t en d ofh:cnllSing to prev en t d ri.v lng spe iug

11[0 (' 1 fromfiy ing out.)(3) '\Vitlulraw ddviH~ p,~'in~ rod assembly, h::ngdhl'l' with driving

sprjrurs and driyiug' H])rin:l,!; spacer,(4) Remove pin :iUid unscrew drhr in~ spring rod piston ..(5) H,emove dr-i YIU~ ~pri]l: l 'od. hook sp~~.ngnu~l plunger fl"QHIL

opelil]n~in front end of eounection,(6) U e l U o v e cotter pin und push out (;hkim'" b l ' " I l ' i n : 1 ! rod. COIUH'C.

tiou pin. This releases drhiug spring ~'od hook, dei dng Hpdng rod,connection; and driving rod hook sa-re ly .(7') Helll[~ive pinand u n s c re w uri v i n g sp,r]n gl u hll co n n ee tien pinknob.


17/29

TId ~24028-25,

( 8 ) W it] td ru \~ ' ( hj ving f;prhl.-r tube co n ned 10]1 pm an d ~1~'iiiu!li.$p~i!np:tube C'Oilul('{"~inHp]n !ol]wing.b. 1'0 (M.emble.-(1) Insert driving sprmg tube colmedioH [un

spdng' and pin,(2) Screw on driving spr.lng tube connection pin knob. In~ ,~,tpin nndbend it.

t a ) Itea ssemble d [ 'IVi ng- spm']np; rori] o nm ln 'c t i o n " hook, and safety.Insel'~,tki.ving sp~+ng nKi cennection pin and rep]1we coHe~r pin,(4) 1nSf'l't dri Ving s]')l']ng rod hook spl'ing plunger audspri ng inopening ,nt connection,(5,) Screw on driving spring rod piston, inse~>t [ J I I D n and bend iL(6) Rcasslimh~e dd.v]ng sp]'in~ and spn~~', (!~t)k(l certuin in

n s s emb l i n g d l 'hr i n g: springs that th e !o l~ l "H\~,~.eh 'iameters !Hl:l tow,Il1,dthe spaoe~'.)r(1) Insert fh.' i.ving spring rod ! lend sprhlJl;into its housing and

SC;[I@l''f on driving' SP1tll 'l lg rod ooune~ ' l i o ]1 . Re~ l']nce co tter P ~H and OP(lHn p its ow la ."(8) Screw om ih']vimg spring tHbe and cap.24:" :Back pLate.-a. 1'0 dk,,(l...~mble,,-p) Unsci'''ewbui"er adjust-mg screw ..(2) I{eumve buffer springs (]u '~ '1l l1lnd! smd~ )nnd bulfe~'frictio])pi,ece~ nO'lj,n~]'..mil upper),r( 3) 1 U nserew buier p1ungel' st O [J screw.( 4 - ) Upmovc bu~ er phm~e~'.b. To t lf l,~emblc.~ (m) ltep]aoe hutTer plunger.r( :2 ) K cre \r in I ndW ( ' ]' p l]1nger s top 8.c1'~\'!'..(3) E:ep~.]'fd_or mecha- j, Elenlte gun to 5'\ remove filUngrusm, plug, aud not(~ '\dlf:'t~H'r oil is at proper] f'vf,,1(bottom of bole).

(j.. THhe I(H~k . r r - Be sure t,b~. tuhe 10('k operat esIrcely.h. Lock frame, h. Srneotbness o r operation,

. i lJalf t,~ncti(ind,,, FI1 i1 s to fire , n o

.. .pel'rCu8SmI1on Pl"Ul1~r.b. Gn;rt]'~dge ease[{:lUs to extract,

c. Lock frimM~l JailstolJ1neti.on.IIlJ!mmflr not held incock c , r i " position.d. Op,elm.li1lg lever[ i l ia 'S to rotum to for-ward ]HDS]tion,e. Ej,ettor Jails to.l 'ulwt,ion.

.f . In suffie ie n L re -coil.

C(!UStla, Broken ]iring pin

or Spl"Ulg'.b , Broken or weak

e xtrae to r SPloLUg.c. l~l"ok.~'n SCJ.r

spnng: ..

[\iLm~rn.rlh~w

C~rrecli,(i~(t. Rep]fIIc(' bl,~'~'{"h-

block (par, H'O.b .U , f' ] )1 . 11 { "e w ~1h

1I."If"\\ sprmg 01' extrae-tor (par. 21) . .

e, Rf'p~ace wit h1.1,('\\- sen.r spring {pill'.21)-

d . B ro ke n Or we llLk d. R S])]il.rC~e w it hopel,[I.ting lever spring. new sf!l['ing (pur. 2]).t..B ]'o ken m ' w eak

,ejiectol" pr~ngl 01' m-5:11f ie i . en t r e co il,IE:.::cess 0 1 1 in re-coil meeh ;,]nism..

e. . R cpl ace \vi thnew ejleetor spnng(par, 22).f. Ad j us~,Q11in rl.~co il mechanisau.


18/29

TN 9-24012:7-00

SF; .!lION VUICAnE AND PRE En, 'ilION

ir>~~rj~:t=J111 H I.}-~,jf~f'rwr'[d __ _ _ . _hl!;IJoI'!;'Uon _ __ _ ___ =---- _

U,pulllva'l o:f Il.ILI'b!; wtt h gin. m ~11 f :c l l u . :> I'Lrpllm p_ _ ':!!lLul.!d'l'l'Iti,on il1l!\tnH 'IIII1I~_____________ __ _ ,a oH~'!'nl rntnr ---- __-_ _ _ . : ' 1 1

32,3:~M

l 'lfO ll!lUll1 !: __ _ _rl~:'HI,~:rl>1HH] IIh."ll ~ i\".'", _ _ ___ __ ___ __ _ _

27. Genel'nJ.-n('('nn:-li:' of tb '~tr('ml('ly low temperamr ,. ;]Wt"'a]]in at aU times a h i~h altitudes spec i a l care must be tu ke u to seeH1Jut~ . ] iL 'C ' n f tA11l11~lIb~'ic: il l l l tS be kept fre e flo win g, G l'{lf,lS (" d rie .l o il ,and gum must be ca "Cfuny l~moved!, and [,he gun must b relubri-catcd \\ i th oil. Iubl'icntilnn'. for nh-crait. instrum ants :md machinegnns, I I 0 At"ny ~I 'cHi' ll tion :No. 2-27 of the lates is . u a, befor ,it is rca . sembled,28. Insp,eetion.- T1Hlguns should be hls~']~~ea at lenst onee each24 hours. Ifthe ,ndion nppe~u'. d l 'Y ; 01' dirt n~' other f,o~"eign matter

is pr' ~ 'nt; rem ve the nn, slush 'lit the tube .. cl an the br . ' t ' ("hblrwk,relubr ica te, and reass amble. AJ''i"fay check the .~lctl0n mannul lv bpi 'ur"H~ ~ef~ing the gun '01 'its nex t fi l'i ng' .Im is s io n , .29. Remo'val of' parts. w'ith gun mounted in ,aij['plane.-~\.IJl 'o",ovd. of pm-ts ne essary for cleillflin~ may be ~one with U c gunmounted in tile P-39' airplane, Tl Q, onlv special con 'id.llfl.tion. nr

{IS follows:a. The tube musthe removed fhrough the p]'u]leller hub,b. The removal of the lube xtensieu can be accornpHshed on]~'

dt - . the 'emCW:l] of the radio r'lay bos on the lJIirphme fil'(l wulljust back of' H I' ' mm.30. Lubricatiion in.strucjHons ..---a. The p 'fj'IU1ll' functioning of t h . , .

~l~H ctepf'nils to a. ,r[''e:,]t extent on proper lubeication, P:ut],rubln'nUf'nl ' lon I 'hrruh_l ln ' , Io,!; ' ivento HlP Inhrleation of sliding .1,Ufac,eg of thetil el'at,in~ meehnni: m and otl er belJlrinO" "ul'l:pes.

0. , Gr'it must be kept out n f the luhri 'ant 1111 ilnbrlcat lne o'pening . .] n d en nin A' sl idinrr sm'Taf'f'.!: ,. d o th e n e c e 5 Si :U ~ y \ '\ 'iping with i;I piece o ffirm doth. N o ]]nt, sho uld be . allowed to remain in !tny oti fi~e m' ons]] . 0 . in~ plirts,c. on hould e sppli ,d while the part are bein maneuvered toinsure lWil l l l

: -52

TM 9-24030'-3,2

it. '1Vhefl cleaning, care mu t b, taken [.0 in~ure the eernpletremevul of :]11 [I, idue 01' sediment and to prevent entrance of dirtII' other foreien mato r,e. Oil , lubrii~mtlng~fu]" =l~r'Cn,dt instruments und machine guns, U. S.An'lrl)' 'pec]fi ration No, 2-27' of the ~a'lest issue, 5hon]~~be used forl ul n- ie a in g "he 3(-11':11111 :1illtonmtlc !!U 1 n 't a n tmul) -runues when th'fllU is to b ' fired,t. Oil lubricutinu, for airera ft ins' ruments and mach i ne guns:Wo.d~ .~ttle pro] f'("1ion f lO ' il i n s t. co r r os i on or ru 'Hug. ~ I V Jm ]1 so ' u sed ,it should b renewed nt leust every 2.1 hours. Ifth ~ll1n is ~o b e outuf se 'v]ce for longer Inn 1 weok . . lin parn . huuM b proOle ted withoil, engine, 'AE 30. '''he]) t l l < g-UI1 i to be p,1nc(>.~ i ll f 'l ,, ,rice a~ilin{he '@n.~ i llle oil should he enti rely removed nnd the parte. Iuhrientedwah . oi ]~lub.mic:~t i ] l f l" ' , fOol' aircra it instruments and machine ~tnns,U. S'. \ .nny 'peci f ieat ion No. 2-2i of th lat S it isue,q. lvor1cftfi(m rhad.-The following' ('hart g'h"('~the ]0 ationlubricant, m t .hocllnf appfi ation, and frequen 'Y of luhri .at ion for

j ]I(~ Hi-unIt a i reruf t :1!UU:I.llh:rimrU

Bore and un, }ubdcnting, fOl'c}a! ' l.1' Ii lOOI'; , ai.r'tIIaJ't Justru-

]]!lm .l t,s a Ind In a,.-,'hi]] e guns.RU':>elvcr do _

,ponge ____ ____ Once 'e," ry 24 henrs ]}1 1 : 1 1 1 1is bdng fil' d reJO:u!.!l.I'l~r,or if i1 speetlon shnwt;UUl>t action is dry.Dn _

31. Recu:per,a.t,or.-Tn!l.'dd recoil oil to the recuperator, (']enlbe.{he gun to ,5. r hi:: is ap~m)x imatelv the angle fit whi,eh the gunr, 1-l ts in till' r~l'llp-:m \ h'lIe4lhl'a when this airplan is " III the;,!'I'olll'll(L) Rf'nm\ e the 6]]]ng' 1)lu~. , und pour recoil 0]], ..Al'liJilYpecificat ion :\0. ~ ' .~ I " :- ;llo wlr Jn~o th' recuperator ~J'1 iIIde[' unt i

it is visible in ~he bottern of thE" f H l , n n g - hole. Hbp the outside wallso f the reeuperuecr w ith the lumd l-'. Th is IU" II u w ilI II f o rc !; ! ' th e escn peof any ail' trapped In the eylin ler, -'onthme ~iIIinJ! :.111 '1 j.iul'ln;! tht>':vIiutler unti l all a ir I.. l' moved nnd tl:w oil remains tut ienary IIJth e bottom o f the .B ]lilliJ.!:]10Ie. Rein-ert t he :f W L n ~ p l ug .NtJrn:.~{. (' uf OJ!y fJil ILl,thN than nit r~'on, [" :-:, . .tm.\' ~1)("I.:H1efltion No"

: ! -:16D" in floen'tnpp~'lnl'I' ~; !>fI'! oi ly 'Ill'uhibi I('(l32. Cileaning'.-W].II'u the ~llll has been Ill" '11 the 1mI' should be

cleaned with WuJH water once every :.: hours befure :! . elubriention.

free on B O C N


19/29

I r . J r M 9 - : 2 ; 4 ( 1 133-35

33. C:lean,el's and abr.a"sjves.-'I11e foUowing tm'!pres '~. ibed. :(I" [!loth, el'fm1J;'~(or its equivalent] .-U~ed for dp:lnlll:f!: and.pd]sh-

in~ finished suefuees such as breechhllocks n ml fh in g- mechenisms ..b. (}lotlls~ wpblg. cotton, n~im('d~ ,~leJ'ilh'ed..Uf::ed for Wip~~igina ('hi n~~'y.e. Lime, liyd'~'Ujed"-tr~~d i n { ' ~ e :i l ]1 i n ; .: !: oh s ti on .d. P()lhdl. me ta l, ; r o~ t e ,, ~P :- :: < d for' [)u~i.~h~Hgri1!ht (lu1~.ncqner('fl)

p!ads:,e. Soda (t!!J!I.-Used in .solut]o,n f01" cleuuing bores.f . Sod. CfI1r:


20/29

TM 9-,24035... .oiO .37-MM Alll.CH PI' GUN iliU:.r 'lUEL M4

( 'hnr~e and pI'imer] ['omped rigIdly to the fuzed proje -tHe. Thfuze is If 1h impuet t,Y [J . Iter firing, th e cal.'l ridge en ~ is ex-traeted aut! ejected nutomatiealty, and, the "'un is UU;lifi rea~y f 'OI: thenext round,36, CilassiDca.ti~nl.-'['] U3 unun uni tjon provided for US B In this :un

is classified according to t Y P ' E l as high explosive and target pracric ",The h]J.rh explos ive projeefile eontuins u high >xplosix, filler, whereas1 " 1 : 1 ' practice projeeti le contains no fill r, Both have tn.. ers, het ,r < 1 I. P t'i n t h e h]gb explo i've pr ' 'j -' (' W , ' is known Il S ashell-destray iugt raot ' l] ' b aeause it, is s o arran n ed that sho uld the rn-oj .t ile fail tustrike the tnrge' and fun ion the trneer UpOll burning' through "I'm,a('stl~nythe shell.

37. ~IdentJ.ficaUon.- A IHIn nni I. ' iOI."!, ]iielud i.1~~ lOU'"o nen ~s. is eOU l =plete 1y identi fled by . r n .( 'tU IS o f t hep;li nt i ~" ma l: k ing (fi@ .32) '. and!lCCO[Jrll)11DyiDg' ammunit ien data ca~.d.38. Modei.-ToideutH" a particular desien a model des~glmt]orn.

is a ign d {LV, thee time the ie irm is classified 1I" an adopt, d type.'1hi mo Iel lesiglllt6)0 beeoiW' an ess ntial part 0 ' 1 ' "he standardnomencleture 0 '1 th ' item and L included in the m;u'l{lug on the itern,Th pll sent systCH1 of mode l designation 'oli~~ of he letret' Iffollowed by fin Arabie numeral, .I'lodifiedions :U'e indicated byadding the ]ebte~' .A and the appropriate Ar'[l,hic numeral. Thu~,M55Al ind]c1l \ '~S th0 f i l ' : : : : ; t mcd ]ijcfoltiorJt o f an item for which theori ginul model desi 0 " 1 : ' 1 a tion waS ~'~55,39. A:mmnniticl!n Iet number.c-Whon ammunrtion is rnanufne-

tured an ammunition lot number which beeenu an esseatial partof the mu rldl1g:.~ is us 'igll('l] in ao ordan ',ewith pertin nt s peeifleations ..'fhi. lot number ie stamped I'marked on ' 1 ' : l 1 ] h 1.0Iluld complete roun d ..on all packing eentaiue '1 3 a 1Uon the aC( 'OIl lp : :myin . '~ ameumition bbl.curd, It]8 required for a ll pmposs of record, iududjug l 'Cpol 'l oncOJu . I t i on , fun~tion]ug, an d n ec k" ..n ts in w hic h a mn um itio n is ru -\roh'f lcl TOPI'Ol 'id~ f'~_H'h(' lno:stulno-fonn fuuetionlng all of therounds of any~one lot off fixedamnueuitjon ( ) o l l ~ i ~ t of-

Projee ~]('S 0.1' one lot numb .r,Fuzes of one lot number, F re e o n B O CNPrimers of one IIInumb r,-epellent ~owder of on lot numb r,

Therefor' , to obtuiu the gn::atc~t UC('m'HT in iU1~' firing~ SUCCCSS]V"r'OlUI.dsshould be h'um (hfl same ammuuition lot, whenever prac t icable.40. Amrn.unli.tion data 'cal"d.-A 5- by-inch card, known as an

nm,wl.ruit .i.on ,(lab mud; ~[mckeLl in ef , l ,el lpa.ddng bo x v ,;ith the ~Ul1-

TM 9-24040-42

mun~tinn.,\n!'icn required, ' 1 I . s . . embIing or firing instructions 1\]"printl'd on eh e eev XSI", side of the card ..41. P',a,inting and malrk.ing..-a. All p ro je ct i ID ,t l 'iU'\(' puiut('d t! I

pl' i~wmlt rust and by mean s of the eo~u[' 'to l U 'o v h l e fi ~ ~f'a dy m ean s 1 m'i'~]{'rl.tificllt.i,ona. to typ '. The co lo r Sdlf"n1P is as follnwa:

1_-1 11 ';'1 '-1 I . 0 ' 1 1 'l.fI"ll ex]) O~I'V(' --'_-' __ , ,__ ,_ .L J!~J_"'''' Ul: 1nld 11 ( '( '_ _ __ _ --- ~n.T~~ (pmj('('~iJf' l imyll!~ inort 01' rnayeon-tain a live flIZI' with~pnltin~ dml"l-,'{' n ~ Fblack pIwrler).

7; , In the {,I~&lof pnddn~ boxes, a blue band panllip~l HWI'{'un iWr l -eates t 1m l ~,hbox c on ta in s prnetleeammenirion ..c. ; Wa rX nNg.-{l} T he f~ )U ow :j~1.j]" hrj!,ol'ma 1 1n m ]~ str-ne ih'j~~m t h~p [ " O j e c H i . B (6,. ~2) :

( . 0 ) Cillibmu ud f ype ur cnunonin wh ieh fired.(li) MUlif'1 If pl'oj. ,t 0 l e ,(f') "o t , IHII11b ~ r IIf ]u[141.. 1 p l'o j l'r l i le ,

B('rnuse th ~ ~fDt ;nHmhl ' ] ' of th lond . ed project ile is m~r1ilnfld]y no'trequir 'd aHlI"l ' the comp]ch ' I'OIlUti has I ll' n a-:pmLhd. it is s te nci Ip .dbe]ow the rota l!1lgh[lIH:I~ in which pnsitiuu ]j ]:;\covered ~y the ner-ko f eh c iu -t l'i .d g e c a s z ,( 2 ) The fo lIm "v ]u fl ' is s ten eilo din 'I~]:H'ho n the \lfliSP '~rfI h r - r - ar t r id " ' ~p

(a ) O nm 1(~ r an d ("pe o f en I II I O r ! ill whir-h firvd.(b ) Powde 1" lot number.( r - ) ' : lUuzzl.e ,,1 ity in f'I'l"t pif S('{'oml(d) Anunnnilt,ilOIl ~ot IIUl1I1b I' f l . 1 1 1 1 . loader's il1ili~llf;.4'2. Care, handltng, and preservation.-ll ..('ulnpll'I'e ~'umlll:-;

and ummnni lOU eomprments ure pncked to withstnml conditions,C '~-diIHU-]]: 'V 'E'UCOUljih~I\t'd in ( he fi..]d , N' f 'n l ' thpll '~~ s i nce f 'x .pln,shres~1'f:'J :;~d\"131'Stay Idff'rtpd by mois tnre lUBI. h1,!.!;h t(anpf'I';]'lm"t', drw en n -! 5i l~ ,c l'a ti un s ho u 1 1 I .~ hen tu[woft'd t he ummuu itio n fllC 1Hh suchcond]~~lIH '"

h. Explo s iv e arnm nuitlo n m n s II h n nd h . ] w ith a pp1 'o [l' - 1:Itf' careat all lim, s, 'fh,' xplosive elements ;1,1'1(\ pr imsrs and fu?:! ,,!'>arepurtieu hlrly . ~nsi live to undue , hock and hi..!!h t, 'UI]JI..I'o,Lhll'P.c. Da nnt hreak moisture-re 'itant seal until nmtuuni t ion i. tobl'! nS'll

,d , Do Imj :~.tempt I0 disass 'Irib], !~Hyenmplete rumul or nny fu~f'.s, no H ut IIJk ~w ebe ammun it io n to 11 c e~q)n : ' ; " 'La to the . li ll p( t r n y ~

3'~


21/29

TM 9""'1 241 02-45

f the sun fnr an:\' ],'n~lh of time, M01~ uniform firilll'!:' is nbblin, dif t he rumnls u l" 1: ! ' ;at th e same tf'I'lIID eranu '.[ . T he ( :o mplp tr- ro nn d ~~II)II1d he fl.'(>{' o f n n y rUl'pi~H an:rHpr-~:1Ind.

IIIUtl ' '' I' ';rl~::lp,etc., bpfm't' U."'. H]I:. ~l"P.b;wet 01' Ilh'~J' W]~Kl it , n f f atfl Dn not remove lwu1ec1 ion UI" su ft"ty dp"i('('~ f'l'om ilill:.'X':;)untilj Insrb 'fore U8C.11 . Rmmd, pI' p,lllrf'dl i-m' firluj! but not nll"ell \,\'1]] ] I t > . returned 10

Ull'iil' odgin;~1 p,u:ki]l~s and appropriate] Y IWlll"ked. 1'h'~ '\ ..]1 ~J'l I ; ;NI fir~,t, in S l lb ~p .l l u ( 'n l J i I' il l ~ il l ordl:'l' thu t : ; tuck. tlf Opt~IIP, l p::wkin j ' f : !Im l~ ' h f! k e pt .at ~ l m in hs rum ..

l" Do ]lot h;Uldle dlld-R. Report thl:'m tn u l'd n an ee p ers on n el for[1ilslw~at, 43 ., A l i. rU 1 0 :1 'i z, e, d _ OU ll l, ds .- A u n n u n il i o n a n th o ri xe d f'O'I' l !~ e 1 1 0t hi s

~m is shown 1 1 ~ t 1 1 ( ' F~l, ] ' I IOwil1i!r t uhle, It w i l l b p nnt'li'tl that t ~wdl'Sllg-nation ('o]Uphtply irh-ntifh-s the ~rnrnuur t ion as to typP' and tIl(u lel0- jll'O,i'Il'd lli(>am 1 j'UlZ(, as \ \ ' 1 : ' 1 1 :lfii tIll' e nl i be r :mril , !Ho illd nf ~IUl illwhich f ired.

'\Il;ll'o~l[I}~V~ W4.j~Dt,, y . [ pr.l!ji>I,UI;>'1"'"~Ild, nil! IIlall'lt'id when it] not in H:"ll'i 0:1.' wheu h'l' \"1 IiII~.,\el:' K~lu'ip~shonld not be used fur PUI'PU::lPS uth"'r than ~l::l pn~:lieI'jLl'd,~uul wh~n not in lit ihoukl 1 ' p~'tIPl'l'],J"stored,b. 'nW'111' an' a number of aeepsslH']I~'S who nillUi&i or gent'ral

dml'nd"ri :- : ; t i t :H ind ieate th h u se . O d lP ]~ ~ '~ 'lH b mly in g sp t 'Cln 1 tea tur ss01' hnvi.ng special 1I::l~:5~ur c ~]e:scriLt'~Jjc lon ' .(1) Trunn io n b lo ck hushin~\n\l'lwh. w hirh h nt-; ;l bl"'~'I'mnnd [uw

:lbot~ng;,tg~lIg the trunnion hlu .k 1u1l~ll]rnlg:.(2;) 'tl',tp pip' wi snch, which is u d tu un ,'I"W th ube.

Tnt 9-240 Irr


22/29

1. . S,tandal'd NOnH!liLciatllu'e: Lists.,A mw uu]tio n. fixed . a ll tYP['~l' for pnek, Hg'h l . Hlldtued ium . f i t - I l l ar t illery _leaning, pL'e:~lm 'Ting~, wd l ub r] ,e al l iun luaLel'].als, _GuU!, aul uwd ic , 31-unu~ jl,:[4 _

\tl'l'l'Ut H.hwchwd N0I1,leHduhll't~ Li ,t o :U'(!'as talmlat dIan>, An up-to-date i.i~t of HNV' ]' uluiuih tiuH I a th~"(JrdumuL'(! Phlb~,ic:~jous mol' L'upply Index l ' ,_ _ ,_ ,_ , _ _2. Tedlnical M~nua1s.

AIIlIIUUID tillil !:. i't'Hera[ {IBn\" ~!Ublished il!:i '!'Rl;}'lU-J.} , _('It'll n i u g , preserving, u nd lu brie at i[,lg Ullltl!l'iltI s _ _

~r1. It-,I' N I_ . 1 \ .- 1i s ' ' ]~ A-~6

'fbI, !.I !lUll ''l' .,~ .1 u0

G. ' iMAn HAI..;~(fIdei of Staff .On'rC1J\),:.r, ,/l. lLIO~l.l1 jot' (,'('11('J'ol

TIN' L~ djut(mt Ge~w,ml,JJl"Tl'lm nUN:.u :Wd H 1 (Ij): [Bu 1 (I ( ) I ) < " n (n: I(':J (:)).

(1'01' '-'p]lluaiiolli o r ".nubl[~)SeC }'.M i'J.-"6.)1' 0

II 5. CrO.. RUoi{~T rAqlnUf i. ! o rr llL I 'l l", !

I Fr ee o n , SOCN

I


23/29

TiM 9--240C 1

TECHNICAl, "AN AI.37~it;Il\1AIReRAFT 'G .N MATERIEl" M4

C ' 1 U].A Ii.' [J,. J ' . C \ ' ] '. I''.:\.'fI~]'\'I',HA .....;,:~" ~, n , _.i"\"~I, 1 J l\~Ai'\ITI ~"n'mN, X uvs-mbur ~{i. If14~.T l\,_ f 9 -2 M l. 1\'hu-c.h a n , 1942 , is chan ged ~ follows :,31. Beeupera tor .

* $ * ' * * ' * :~X4ITF..-R"~jiinleu..'ll. Wher'e it Is i:mpossibi,e to obtain. oil reeofl, light, U. S.

Army Slpecification2-36,D, for use in the reeuperator of theg'un, automatic" 37-mm~ M4 (aircraft), one of the' f,ollowingmixtures may be used. un.tfl otl, recofl, light, becomes ,Rvaflable.(1) Mixture of equal parts by volume of Iiquid, aircraftcempass, U",S. Ar:il.uySp,eo(dficaltian2-57'B (Army-N'.avy Aero-

nautical Specification AN-VV-C-551) and ofl, lubricating, foraircraft instrumen ts and machine guns, U. S. Arl11.YSpecifi,lca-HOoD 2-27E.(3) MixtuI'le ,of equal parts by volume, of liquid, aircraft

compass, U. S. Army SpeoCiftcatio,n2-5,7B (Al'.~:ny-N.avy A,ero~na utical Spe,cifi'ca,tion AN,-VV-C-,55, 1)" and fluid, hydraulic

TV 9-2410


24/29

c ]n'lixi1'iLg ~s done in a 0.'05'( and lnois.tUl'f;J-frIEN! llt!l:uosph:f['e, ina cJearl. ( i l ' " Y ' COl tntrier uslin.g: dean mixing Impl. U11.I!]:1t'Sl.!.

( ; . > [ ' . , )r _\.l:~ 11. \ 1 . . 1 . . ,I II;t'!' -......ff T .

l ! - 'j . - ~ U,~.;. 1 . _ \ . " ['LIn.,

Jltl)llJ' 1:1 lie ,~d,l"~ .1 f l . ~III ,ltl t (i r u ttl t,


25/29


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M 6 M ag azine F e e d B e lt C lip fo r th e M 4 A uto G un~ - - - - - - - - - - - - - - - - - - - - ~

Page 6 ( )2-11.( )B)

Documents

TM 9-240 - 37 mm AIRCRAFT GUN 1942