Tm 5-8064 CRANE, BRIDGE ERECTOR, HEIL M-11-A, 1944

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    ALMANUAL

    C-

    M

    P u b l i c D o m a i n ,

    G o o g l e - d

    i g i t i z e d / h t t p : / / w w w . h a t h i t r u s t . o

    r g / a c c e s s

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    CALMANUAL

    LIC-

    Y1944

    ngOffice

    M

    P u b l i c D o m a i n ,

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    y1944.

    ted,BridgeErector,Hydraulic

    publishedfortheinformationand

    ARYOFWAR:

    TofOpns(Cof Engrs)

    rs)(2);Arm& SvBd

    fC(1); TechSv(2);

    ;PE(PortEngr)(2);

    2)exceptAlbany(Pub

    p(25);DistO 5(2)

    Engr(2);Gen& SpSv

    Congress(2);ROTC(1);

    10);CHQ(10);D(2);

    ofollowing:T/O&E

    7;5-216;5-217(5);

    M21-6.

    M

    P u b l i c D o m a i n ,

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    3

    HydraulicCraneM-II-A................Jfc..5

    ......5

    ......7

    .........13

    ............................13

    .................17

    orWinch................17

    .....................17

    inch Treadways....................................18

    8

    ............18

    ................................21

    ...................23

    .....23

    ine................24'

    Time................-..................27

    neSideofBoom................28

    9

    ...................32

    ........32

    ............................34

    ........34

    ..........34

    .........34

    ................35

    .................................35

    ............35

    ...............37

    m................-......37

    .........38

    .....91

    M

    P u b l i c D o m a i n ,

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    M

    P u b l i c D o m a i n ,

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    r g / a c c e s s

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    M

    P u b l i c D o m a i n ,

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    r g / a c c e s s

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    ngCranewithTypicalLoad

    BODYANDHYDRAULICCRANEM-II-A

    ONS

    ncemanualhasbeenpreparedasa guide

    enanceprocedurefortheSteel TreadwayBridge

    ctionsinthismanualdonotapplyto thetruck

    alforinformationapplyingtothetruckitself,'

    erstooperatethecranegivessmoothopera-

    hpracticeandcompletemasteryoftheseinstruc-

    ndmaintainedbyanyonewhocanoperateand

    oil inthehydraulicsysteminsufficient

    oilleaks inthesystemmustbe promptlystopped.

    thatithasbeen properlylubricatedasexplained

    cationCharts.Thesechartsshowthelocationand

    rrectlubricatingintervals,andtheproper grade

    gconditions.

    manualcarefullybeforeattemptingto

    arwiththe operationofthecrane.

    M

    P u b l i c D o m a i n ,

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    BridgeErectingCrane

    M

    P u b l i c D o m a i n ,

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    r g / a c c e s s

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    MENSIONS:

    s.

    bs.

    bs.

    bs.

    400 Lbs.

    5Gals.

    374";

    h99";

    or 2,437

    ydraulicCraneis designedtocarryfour

    ingpontons,or24 ft.oftheSteelTreadway

    ha hydraulicallyoperatedcranetounloadand

    owninFigure1anda partiallyloadedunitin

    ybe loadedeithertothefrontor totherear

    oftreadways,itis suggestedthatthepontons

    ofacilitateunloading.

    vertheentireloadand isshown,together

    ures 4and5.

    ingCraneinOperation

    M

    P u b l i c D o m a i n ,

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    thodofAttachingTarpaulin

    hodofAttachingTarpaulin

    M

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    ntrols

    platformatthefrontof thebody,Figure6.

    eoperatorcan controltheentireoperationof

    ngementofthecontrolsis showninFigure13,

    peratesthecraneis explainedinFigures7

    mp,whichisdrivenby thetruckenginethrough

    rcestheoil throughthesystemtooperatethe

    trolledbyoneMainValveandoneAuxiliary

    )ThefunctionoftheDiversionValveis toper-

    odsintheLowerCylinders.Areservoir(or

    entoiltoreplacethat displacedbythepistonrods

    isextraoil isrequiredasthe pistonsareextended.

    M

    P u b l i c D o m a i n ,

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    S

    arofTruck

    Neutral

    M

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    MS

    b

    ab.LowerCylinderControl

    M

    P u b l i c D o m a i n ,

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    r g / a c c e s s

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    M

    P u b l i c D o m a i n ,

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    LowerHydraulicCylindersofCrane

    atethecraneandare showninFigure12.

    nderscontroltheboomwhilethe twoshortlower

    mi sintheextendedposition.Thenormalca-

    ylindersoperatingis8,000pounds.

    hafairleadat theright,rearcorner,anda

    aybeloweredbeyondthenormalreachof the

    donthe frontofthetruckandthreadingthe

    SeeFigure31,Page29.

    gofashovel,pickmattockandaxeare

    ,seeFigure2.

    dtoolsare carriedinthetoolbox mounted

    eldtothe chassiswithspecialhold-down

    hismanualshowsthesebrackets.

    UNIT

    RUSE

    gedwiththecareandoperationofa bridge

    detailedinspectionandtolubricateall partsas

    5.

    nedfromthesecylinders!nthe truckengine

    y.

    mwithcrankcasedraining* orotheroilwhich

    M

    P u b l i c D o m a i n ,

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    R

    M

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    doilor refillthehydraulicsystem,useany

    E10).Foroperationat temperaturesofzeroor

    2,Paragraph5"a".

    oundtwometalinstructionplatesas shown

    s,outlinesthecompleteoperatinginstruc-

    owedin thesequencegiven,nodifficultyshould

    fthe hydraulicbridgeerectingcrane:

    INGCRANE

    ownondeclutchingpedal.

    ingouterleverto therightasfar

    loperatehydraulicpump.

    ylindersbypullingValveLever

    HESERODSMUSTAL-

    REUNITISREADYTO

    arwarddirection pushValve

    dcab pullValveLevertoward

    placeValveLeverinneutralor

    lreturntoneutralposition

    OPERATED PistonRodsin

    ushedin(or retracted)toprevent

    movingboom,UNDERNO

    tion.

    andleasfar aspossibletoright

    sition UNDERNOLOAD.

    LLSIDE.NEWJERSEY

    s,Plate"A"

    rontPanelofthe Bodyshowingallcontrols

    wnindetail inFigure13.

    M

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    CylindersExtended(UnitReadyforOperation)

    inLowerCylinders(UnitReadyforTransit)

    M

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    Ss

    withregardto ProcedureNo.4tdbesure

    cylindersarefullyextendedbeforeliftinga load

    erodsmustbeextendedsothat aftertheboom

    on,thepistonrodsof thelowercylinderswillbe

    htoftheloadat thatpoint.Figure15showsthe

    nreadytoreceiveaload.

    dsfullyretractedwiththe boominridingposi-

    torstorage.In thispositionthepistonrods are

    wouldcauserusting.See"CAUTION"onIn-

    thelowercylindersfor transit,orstoragesee

    ionPlate"A"underheadingof "CAUTION",

    KE-OFFFORWINCH

    f thebodyisthepowertake-offleverfor

    the rightaswellas totheleft,forreversingthe

    owertake-offleverin centerposition,thepower

    eFigure13. Thefront-mountedwinchisused

    or loweringthetreadwayswiththesnatchblock.

    unitwitheitherofthe uppercylinders,(i.e.

    edandthecrane maybestilloperatedwitha

    s,closethetwoemergencyvalves(Figures11

    urelines onthesidewhichis damaged.Remove

    ,whichattachestheendofthepistonrodto the

    eflowof oiltothecylinderson theopposite

    mto beoperatedwiththetwolowercylindersand

    hismanner,nomorethanone

    .

    dunderthecentertrapdoorof thefloorof

    the undersideofthetruckchassis.Metal

    chofthesevalves.ThevalvesshouldNEVERBE

    ency.Valvesshouldbecheckedperiodicallyto

    edaccidently.

    M

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    owingEmergencyValves

    DLING45inchTREADWAYS

    onsaddles,andtwopontonsarecarriedin

    howninFigure1. Thefourtreadwaysareplaced

    eroadsurfacesofthe twocentertreadwaysfacing

    fthe twooutertreadwaysfacingintowardeach

    fourtreadwaysfacetowardtherearso thepon-

    hetruckto facilitateunloading.Theponton

    fourtreadways.Thecraneboomrestsonthe

    UND

    edandunloadedtwo atatime.Unload

    htheroad surfacestowardeach-otherasshown

    ontheintermediatelengthchainof theupper

    hookin thecentereyelocatedontheside sur-

    Figure19.

    M

    P u b l i c D o m a i n ,

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    TreadwaysFirst.RoadSurfacestoInside

    lipHookstoTreadwayEyesfor Unloading

    M

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    rTreadwayswithCenterSlipHooks

    waystoHorizontalPosition

    M

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    movedfromthe truckbyusingthetwo

    osschainassembly.SeeFigure20.Thesliphooks

    hesideof eachtreadway.

    eadwayswiththe roadsurfacestoward

    waysinthismannerthey caneasilybelaidover

    ng themawayfromeachother.SeeFigure21.

    YS

    treadwaysforthespacerbars,firstattach

    hthehorizontalholeslocatedaboutthecenterof

    thelowertreadwayhookinahorizontalposition,

    einsideofthe treadwayside.Thentwistittothe

    hookbearsagainsttheside ofthetreadwayas

    sthroughthepear-shapedgrablinksofthe

    sothepear-shapedgrablinkslockonthe outer

    connectinglinksattheendsofthe liftingchains

    YSIDES

    chingLowerTreadwayHooks

    M

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    pacedwithBars.NoteChainArrangement

    readwaysontoPontons

    M

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    23

    dwaysswingfreelyandtheywillhangin

    he spacerbars.Eachpairof treadwaysarecon-

    bars areinsertedthrougheyeslocatedtoward

    ways.SeeFigure23.

    NTONS

    aysdirectlytothesaddlesonthe pontons,

    ragraphb.,pages 18and21,withthe following

    r thetreadwaystoahorizontalpositionbyAT-

    ADWAYHOOKSTOTHEINNERSIDES

    ninFigure 24.Thispermitsloweringthetread-

    ventinganydamage.

    wayson thepontons,repeattheoperation

    21and 23.

    FTINGTECHA!N

    StandTreadwaysonEdgeforLoading

    AYS

    ruck,removethespacerbars,Figure 23,

    outerliftingchains tothecentereyeslocatedon the

    etheboomto standthetreadwaysonedge.See

    ertreadwayhookassembliesforthisoperation!

    eloadedshouldbemovedtothe extreme

    ws.First,attach theintermediatesliphooksto

    aysarestandingonedge.Raisetheboomandthey

    ly,attachthecentersliphooksto theeyesand

    thetruck,Figure20.

    M

    P u b l i c D o m a i n ,

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    ON

    adwaysasinstep (1)above,butloadthem

    ateslip hooksareattached.SeeFigure18.Al-

    he truck,Figure20.

    DWAYSINLINE

    ne,connectthemtogetherwiththeopen

    uckasshowninFigure 26.Inserttheouterlift-

    bothtreadwayhookassembliesandfastenthe

    outerlifting chaintotheoppositeliftingchain

    27.Thispositionpermitsmaximumlengthoflift-

    SLIPHOOKSATTHEENDOFTHE

    ERFORMTHISOPERATION.USE

    GTOLIFTINGCHAIN.

    ookassemblyshouldbeattachedto thetop

    siteeachother,Figure27.This prevents

    g.Figure27 showshowthehooksattachjust

    ockofthecentertreadway.Notealsohowthe

    kovertheguidebar onthetreadwayflange.

    edformaximumhandlinglength.Thisper-

    ytomovethetreadwaysforwardunderthe truck

    balancethefrontendofthetruck.It isobvious

    ocatedin thecenterofthetruckas inFigure26.

    underthetruckmustbearagainstthe tiebar

    ure28.

    waysinLine,CenteredatBackofTruck

    M

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    RU

    H

    R

    chedtoFlangesWhenLiftingThreeinLine

    UnderTruckandBlaringAgainstTie Bar

    M

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    dlingFourTreadwaysata Time.

    apacity.NotePlacingoftheFour

    aysinProperPosition.

    M

    P u b l i c D o m a i n ,

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    WAYSATATIME

    time,connectedinpairs,attachthetread-

    readwaysatthebalancepointasshownin Figures

    over thetreadwayguidebars.Inserttheouter

    apedgrablinksof thelowertreadwayhook

    blinkshouldattachtothechainjust abovethe

    endofthe liftingchain,seeFigure30.

    SLIPHOOKSATTHEENDOFTHE

    PERFORMTHISOPERATION.

    ter liftingchainwillpermittheboomto

    ntlyto preventthefrontendofthe truckbeing

    eadways,raisethetreadwayssotheyhang

    rspacerbarsare used.Insertthehookedends

    teeyeson theinnersidesofthe treadwaysas

    tethatthecentereyesarenot usedforspacing.

    ys,theboomis liftingatitsfull ratedca-

    hereis noappreciabledistortionoftheboom.

    chedProperlytoLiftFourTreadways

    M

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    WAYSONONESIDE

    entalto boththehydraulicmechanismand

    foreadvisable,whereverpracticabletobalancethe

    ovethetrucktooneside ortheotherto eliminate

    frameitself.

    hereitwillbenecessarytohandleonlytwo

    on onesideoftheboomas showninFigure31.

    ortionoftheboomunderthis loadwhenapplied

    y.THISABSOLUTELYISTHEMAXIMUM

    BEAPPLIEDTOONESIDEOFTHEBOOM.

    usethe upperboomsupporttobendor twist

    amagethe truckchassis.

    liftingtwotreadwayson onesideisshown

    wayhookassemblyto theouterliftingchain,

    connectinglink.Attachthetreadwayhooksto

    epointas showninthefigure.Thenbring the

    ndfastenit tothefirstlifting chainatthepoint

    sbelowthelarge connectinglink.IMPOR-

    asteningtheoppositechainto thechainlifting

    transmitspart oftheloadtothe oppositeboom

    stortion.ALWAYSUSEBOTHCHAINS.

    ED

    AIN

    waysonOneSide.NoteBoomDistortion

    M

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    rtreadwaystoapointlowerthan thatattain-

    isnecessarytousethewinchon thefrontofthe

    dinthe toolbox.

    ftingchainsoverto theiroppositesidesso

    centerchainsectionandattachtheGRAB

    Figure32.Attachthesnatchblocktothe

    his willdistributetheloadevenlyto bothbooms.

    rtreadwayhookassemblyintothe holeson

    nsideandlockin theverticalpositionasshown.

    lldrumofthefront-mountedtruckwinch

    ht rearcornerofthetruck.Threadthe cable

    ownin Figure32andfastensuitablytothe large

    yhookassembly.

    hBlockDirectlytoUpperBoomSupport

    dCabletoHandleTreadways.

    M

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    ThroughFillerPipe.NoteReliefValveBeneath

    reliefvalveinthe fillerpipedirectlyunder

    5,to relieveanypressurethatmightbuildup in

    orexcessoilthat mightbeinthe system.Pressure

    ,however,maybebuilt upbyexcessoilin the

    ad.Forthis reasonitisrecommendedthatthe

    ionin aboveparagraphhasbeencompleted.

    SYSTEMmaycausebackpressureinthe

    loweredbygravitytosuchan extentthatthe

    eliefvalve shouldtakecareofthisbutifit

    efullyremovethefillercaptoreleasethe excess

    ngthis topreventthecapflyingoffand injuring

    TEMwillcausejerkyaction.Thisis

    ichiscompressible.Anotherindicationofoil

    atedby thepumpwhenitis beingstarvedfor

    mmediatelyremediedbyaddingoilorrefillingas

    page32.

    rainthereserveoil tankfirstbyremoving

    .Drainthe uppercylindersbyremovingthe

    cylinders.BECAREFULNOTTOLOSETHE

    EMOVINGTHEPLUG.

    M

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    _ u s e # p d - g

    o o g l e

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    mBelow

    ownClampSecuringBodytoTruck

    M

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    benecessarytoreadjustthispart. Ifforany

    nthefieldthe by-passvalvecanbeadjusted

    ssspringtolift fourtreadways,thentightening

    rns.This shouldprovideaby-passpressureof

    eprovidedonbothsides toholdthebodyto

    smustbekeptabsolutelytightat alltimes.

    lts holdingthebracketstothechassisframeand

    etstogetherasinFigure39.

    ICSYSTEM

    k,Figure 17.

    gure40.Itis necessarytoremovethe

    mthepumpshaftfirst butitis notnecessaryto

    or minoradjustments.

    or defectsorexcessivewear.Ifplates

    notexcessivelyworn,theexcessendplaymay

    ngoneor twolayersofthelaminatedgasket.

    ingthecoverplatethat ampleclearanceis

    raulicPumpShowingParts

    M

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    earswhichshouldturnwithavery slightdrag

    wntight. Addorremovegasketlayersuntil

    obtained.-

    eorlowpressurelineat thetank(Figure

    ssembled.

    ESNOTOPENTheemergencyvalves

    inParagraph(e),Page17,EmergencyOpera-

    YSTEMAllleaksmustbestoppedwith-

    vecouplingandapplysealingcom-

    aceentirehoseassembly.

    andpackingin cylinder.

    olvalve:Replaceoilseals.

    eplaceoilseals.

    ng.

    ODS

    onrodsinthe hydrauliccylindersisofa

    hasan automatictake-up;i.e.,aspringisin-

    hefunctionofthisspringisto spreadtheleather

    eleatherbecomesdamaged,itispossiblethat

    pletelywornout.

    erefore,itis recommendedthatthegland

    hersinstalled.Inorderto replacethispacking

    essarytoremovetheendofthepiston rod.In

    rsmaybe cutwitharazorblade.When re-

    threeleathersshould beassembledtogether

    cutsonoppositesides,andtheninsertedin the

    end.AlwaysreplaceasmanyV-leatherringsas

    softhiskind.Alwaysleavethe firstleathernext

    M

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    romptly

    denti-

    rrect

    ONON

    UT

    meof

    model

    mberof

    sattached

    acces-

    equired.

    keor

    on.

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    when

    M

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    ONS

    tformfor submissionbytheEngineerProp-

    itepage.

    INMAKINGOUTREQUISITIONS

    ofwork,PropertyOfficersmayauthorize

    ionsinfinalform,leavingrequisitionnumber

    opertyOfficer.

    LLBEOBSERVEDCAREFULLYIN

    ORSPAREPARTS:

    oreachdifferentmachine.

    rrighthandcornerof requisitionform.

    useofoneof thefollowingterms:

    nofauthorizedallowances.

    equentrequisitionstomaintainauthorized

    necessaryrepairsnotcoveredbyallow-

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    uisitionmarkedr"Confirming(stateidentify-

    accountedfor.

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    M

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    M

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    rcranebooms)

    A177

    o.1612

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    ms,V/4"x5}J

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    M

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    NGSANDMAINSHAFT

    3/4"1

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    Key,2/2"x3'/i"2

    AE2

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    aight,No.16102

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    forLowerRightCylinder1

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    ndA27A1502Tie

    M

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    body)

    te

    yBrockway

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    4"xl/t"

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    Lower,Shert

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    ead

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    M

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    NES,ANDRELIEFVALVE

    ACKET

    ain)1

    SAE2

    AE2

    erve1

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    DFITTINGS

    "x30"1

    a"x52'/4"1

    4"x321/,"1

    10"1

    27"t1

    SP/i"1

    Hydraulic,(withFittings),

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    M

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    S

    (withFittings),yt"x24"

    (withFittings),3/4"x19"

    (withFittings),3/4"x32"

    oFemale)

    aletoFemale)

    etoFemale)

    Co.No.120)

    3/4"x3'/4"

    3/4"x6"

    3/4"x6/2"

    3/4"x7"

    3/4"x73/4"

    3/4"x834"

    3/4"x223/4"

    y4"x24%"

    3/4"x28"

    3/4"x56'/2"'.

    3/4"x74"

    /4",90

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    ng,Close,%"

    rong,3/4"xls/8"

    rged,3/4"

    rong,3/4"

    (BoltedtoBody)

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    yx5/8",USS

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    M

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    ,(PowellCo.No.120)....

    wellCo.No.650)

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    E

    HOUSINGARENOTSOLDSEPARATELY

    n1

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    OUSINGARENOTSOLDSEPARATELY

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    AE...

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    RTAKE-OFFFORWINCH

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    RTAKEOFFFORWINCH

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    OLS

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    SSEMBLY

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    r g / a c c e s s

    _ u s e # p d - g

    o o g l e

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    75/107

    SSEMBLY

    o.16121

    /32"1

    /8"2

    .16121

    1(weldedtobody)....1

    1

    M

    P u b l i c D o m a i n ,

    G o o g l e - d

    i g i t i z e d / h t t p : / / w w w . h a t h i t r u s t . o

    r g / a c c e s s

    _ u s e # p d - g

    o o g l e

  • 8/13/2019 Tm 5-8064 CRANE, BRIDGE ERECTOR, HEIL M-11-A, 1944

    76/107

    EQUIPMENT

    CCRANEM-LU

    NNO.

    INGCRANE

    ownondeclutchingpedal.

    lingouterlevertothe rightasfaras possible.

    loperatehydraulicpump.

    dersbypullingValveLeverforwardorIow