• Challenger History Page…2 • Challenger…The Model Page…4 • Model Features Page…5 • Sound and DCC Features Page…6 • Operating the Challenger Page…7 • Lubrication and Maintenance Page…10 • Challenger Tender Diagrams Page…12 • Challenger Locomotive Diagrams Page…14

�

�

TheChallenger4-6-6-4simplearticulatedloco-motivewasbornintoaneraofcontradictions.Therailroadindustrywassufferingthroughthemassiveeconomicdownturnsoftheearly1930s,withmostrailroadsbarelyremainingsolvent.Yet,amovementarose that resulted in the development of the pin-nacleofsteamlocomotivedesign. NewlocomotiveorderswiththemajorerectionshopsofAlco,BaldwinandLimawerealmostnon-existentintheyearsbetween1930and1933.Mostrailroads opted to rebuild and refurbish existingequipment in their own shops. In addition, motivepowerrenderedobsoleteorsurplusbythedownturnintrafficfounditswaytothescrapline.Inanefforttocapturewhatlittlebusinessexisted,experimenta-tionreachedafeverpitch.Theseeffortsmanifestedthemselves in the introductionof streamlining, thedevelopment of diesel-powered, dedicated consistpassenger trains and super-power steam locomo-tives. Super-power steam was the evolution insteam locomotion brought about by a marriage ofhigh tractive effort with high-speed performance.Previously, railroads had either greyhound swiftlocomotiveswithlimitedpullingpowerormassive,complexlocomotivescapableofhightractiveeffortatspeedsofaround20milesperhour.Bycombin-ingthelatesttechnologywithimprovedunderstand-ing of the dynamics of steam power, new classesof locomotives reached the rails. These machinesfeaturedlargefireboxessupportedbyeitherfourorsixwheel trailingtrucks,massiveboilergirths thatpressed clearance limits, higher boiler operatingpressuresandthelatestinappliancesthatimprovedthe roadworthiness and thermal efficiencies of the

powerplant. TheUnionPacificRailroadhadauniqueopera-tional dilemma: The majority of its traffic wasmovedoverlongdistancesbetweentheWestCoastandtheMidwestthroughdauntingterrain.AlmostatthemidpointofthesystemisCheyenne,WyomingandtheShermanHillgrade.Geographically,Chey-enneislocatedatthejuncturebetweentheplainsoftheMidwestandthefoothillsoftheRockyMoun-tainranges.WhilenotasdramaticastheAlleghenyorSierragrades,thelinewestofCheyennehadlongruns of 1.2% or better grades. The Union Pacificsought to operate long high-speed service throughthis challenging geography. For this reason, theirbestandmostmodernmotivepowerwasallocatedto this division. Beginning with double-headed 2-8-0 Consolidations in the early twentieth century,heavierandmorepowerfullocomotiveswereused,culminatingwiththesignatureUnionPacificthree-cylinder4-12-2.Whiletheyprovidedstellarservice

on the Sherman Hill route, these twelve-coupledlocomotives had reached the maximum size for arigidwheelbaselocomotiveandrequiredtheUnionPacifictolookforadditionalhorsepowertoincreaseover-the-roadspeed. ArthurM.Fetters,generalmechanicalengineerfor the UP, suggested redesigning the success-ful wheel arrangement of the 4-12-2 as a simplearticulated.Bysplittingthewheelbasebetweentwosmaller frames, an advantage would be gained bythe ability to add larger drivers to a shorter rigidwheelbase. This resulted in more speed with theaddedbenefitoflightersiderods.Theselightersiderodswouldminimizetrackdamageathigherspeedssincetheentiremechanismwouldbeeasiertobal-ance dynamically. The final complement to thisconceptwouldbetheabilitytoaddalargerfireboxsupported by a four wheel trailing truck, furtherenhancing steaming capabilities. Mr. Fetters andthedesignersfromAmericanLocomotiveCompany

ChallengerLocomotiveWeightsandDimensions

Tractiveforce 97,350Lbs.

Cylinders,diameterandstroke(4) 21in.x32in.

Drivers,diameter 69in.

Totalweightofengine 634.500Lbs.

Weightoftender(2/3loaded) 348,000Lbs

Boilerdiameter,firstringinside 94-11/16in.

Lengthovertubesheets 20ft.0in.

Drivingwheelbase,each 12ft.0in.

Totalenginewheelbase 60ft.4in.

Fuel Softcoal/Oil

Gratearea 132.2sq.ft.

Steampressure 280Lbs.

Evaporativeheatingsurface,fireboxtotal 554sq.ft.

Evaporativeheatingsurface,tubesandflues 4,038sq.ft.

Superheatingsurface,typeA 1,741sq.ft.

TenderCapacity,centipede 25,000gal.,28tons

�

TheChallengertypeoflocomotivewouldserveuntiltheendofmainlinesteamservice.Theywereassigned to railroads across the nation and underalloperatingconditionsgaveagoodaccountingofthemselves.Twoexamplesescapeddismantling.UP3985hasbeen restoredand joinsUP4-8-4844astheonlytwosteamlocomotivesoperatedbyaclass1 railroad today.Theother,UP3977,hasbeenondisplayinNorthPlatte,Nebraskasince1968andhasrecently been refurbished by a group of dedicated

(Alco)finalizedthedesignofwhatwastobecomeone of the most widely recognized locomotives inthe world. In 1936, the first group of locomotiveswith the 4-6-6-4 wheel arrangement was deliveredtotheUnionPacificRailroad.Theywereanimme-diate success and their roster grew to number 105locomotiveson theUnionPacific alone.Thisnewwheel arrangement was given the name “CHAL-LENGER”.Whiletheoriginofthenameisunclear,itprovedtobeanaptmoniker.

railfanvolunteers. In 1936, the Union Pacific Railroad and Alcomet the needs of increased speeds and tractiveeffort with the design of the Challenger. Today, theGenesisTMChallengermeetstheneedsofmodelersandcollectorsbyprovidinganHOscalemodelthatcapturesallnuancesoftheprototype,takingmodelsteamrealismtothenextlevel.

�

UnionPacificreceiveditsfourthorderofChallengersin1943,anditsfifthorderin1944.Thesewereimprovedfrom the earlier design based upon experience gainedfrom the Big Boy 4-8-8-4 locomotive received in1941.Theselocomotivesfeatureddoublesmokestacks,centipede tenders and many parts common to the BigBoys.In1952enginesfrombothorderswereconvertedtoburnoilandwererenumberedinthe3700series.Theywerecommonlyassigned tobothpassengerandfreightmovementson the system.Twoexamples survived thereplacementofsteambydiesels,with3985receivingarestorationbyvolunteerUPemployees followingyearson display adjacent to the Cheyenne depot. The 3985returned tospecialserviceduring theearly1980s,withanoilconversionforthetenderoccurringin1990.

RoadSpecificFeatures:

G9122 CHALLENGERUP#3985(FANTRIPVERSION)G9125 CHALLENGERUP#3943COAL&SMOKEDEFLECTORSG9126 CHALLENGERUP#3977TWOTONEGRAYW/OILTENDERG9128 CHALLENGERUNDECORATEDUNIONPACIFICLATEG9130 CHALLENGERUP#3964ALLBLACK,COALG9131 CHALLENGERUP#3975TWOTONEGRAYW/OILTENDERG9132 CHALLENGERUP#3958ALLBLACK,COALG9133 CHALLENGERUP#3983TWOTONEGRAYW/OILTENDER

In1943,tomeetthedemandsofincreasedwar-timetraffic, Rio Grande requested more Baldwin 4-6-6-4ssimilar to those previously received from this builder.Instead, the War Production Board diverted six Alcolocomotives from an order then in production for theUnion Pacific. These locomotives were in turn leasedfrom the Defense Plant Corporation by the D&RGW.Classified as L-97 locomotives, and assigned numbers3800 through3805, theseenginesspent thedurationofWorld War II lifting heavy ferrying freight trains overthe Rocky Mountains. When the war ended in 1945andrailtrafficlevelsreturnedtonormal,thehalf-dozenL-97sweredeemedsurplusand,in1946,returnedtotheWar Assets Administration. The following year, theseworkhorsesweresoldtotheClinchfieldRailroad.

RoadSpecificFeatures:

G9121 CHALLENGER UNDECORATED UP/RIO GRANDE VERSIONG9123 CHALLENGER DENVER & RIO GRANDE WESTERN #3802G9129 CHALLENGER DENVER & RIO GRANDE WESTERN #3804

The Carolina, Clinchfield & Ohio was a latecomerto the railroad scene. Completed in 1909, it was builtforthepurposeofhaulingKentuckyandWestVirginiacoal. As a coal hauler it would at first appear that thehigh stepping 4-6-6-4s would be out of place in thisenvironment.However,in1942,theClinchfieldreceivedanorderof eightAlcoChallengers tohandle increasedwartime traffic. This first order proved very successfulso,in1947whensixmorelocomotivesbecameavailablethrough the War Assets Administration, Clinchfieldacquired them. Originally assigned to the Rio Grande,theseengineswerenumbered670-675.Theyareuniqueinthat,shortlyafterdelivery,theirdoublesmokestackswerereplacedbylargesinglestacks.

RoadSpecificFeatures:

G9120 CHALLENGERUNDECORATEDCLINCHFIELDVERSIONG9124 CHALLENGERCLINCHFIELD#670WITHSINGLESTACKG9127 CHALLENGERCLINCHFIELD#672WITHSINGLESTACK

j CLINCHFIELDUNION PACIFIC

TheGenesis™4-6-6-4Challengeristheculminationoftheartofdesignandtoolingintegratingthelatestinno-vationsinelectronictechnology.TheChallengermodelhasbeendevelopedfromitsinceptionasthefinestthreedimensionaloperatingminiaturerepresentationoftheprototypeavailable.

Enclosedinthepremiumqualityboxarethefollowingitems:1.HistoryandInstructionBookthatincludesawarranty

andinstructioncard2.HOscale4-6-6-4ChallengerLocomotive3.HOscaletenderwithfullelectronicspackage

installed4.HandHeldWirelessDCController

Uponinspectingthelocomotiveandtendernotethemanydetailsthathavebeenincorporatedinitscon-struction.

Locomotiveandtenderfeatures•Boilerbackheadwithfulldetailsandprintedmanual

controls.•Individuallyapplieddetailpartssuchaspiping,

valves,generators,etc.•BlackenedmetalRP25wheels.•Eccentriccranksoperatingonbothsidesincorrect

direction.•Minimalcompromiseonwheeldiameter(about1”

only).•Frontandrearengines(cylindersandcoupleddrive

wheelsets)bothpivotinordertomanage18”radiuscurves.

•Pilothasopen/closedpositions.Couplerpocketcanbeinsertedtomountcoupler.

•Adjustablecabwindows.•Headlightsandtenderlightshavedirectionallight

change,whilethenumberboardsarepermanentlyilluminated.

•Five-pole,skewedarmaturemotorwithtwofly-wheelswithverysmooth-runningfeatures.

•Cabhatchescanbeeitherclosedoropen.

•See-throughrunningboards.•Eachundecoratedversionincludesallpartsforthat

specificversion.•Locomotiveissmoke-unit-ready.Nosoldering

needed.•6-pinconnectorplugbetweenlocoandtender.•Currentpick-uponall12driverwheelsand8tender

wheels.•Consumer-friendlydisassemblyfeaturesforsparepart

replacement.•Detailedinstructionsheetswithexplodedviewdraw-

ingsandhistorybooklet.•Cabinisclosedwithopeningdoorfeature,ormodel

hasopencabin.

PrototypeSpecificFeatures•Singleortwinsmokestacks.•Coalloadoroilbunkers.•Coalrackforadditionalcoalstorage.•Woodtenderdeck.•Smokedeflectors.•Ashpansappliedtocoalfueledversionsonly.•Closedcabwithopeningdoorfeature,oropencab.

M o d e l F e a t u r e s

�

�

DCCFeatures:

ThedecoderprovidedwiththeGenesisTMChallengerLocomotivewilloperatewithanyNMRAcompatibleDCCsystem.Thedefaultsettingisaddress3.Thedecoderisratedat2ampsandwillsupporteither2or4digitaddresses.ThedecoderfunctionsarefullyprogrammablebytheadjustmentofCVs.ACVtableisincludedintheoperatinginstructions.Either14speedstepsor28/128speedstepsaresupportedbythissystem.Availableaccessoryandsoundfunctionsareasfollows: •DirectionalLighting •Bell •Whistle •AirRelease •Coupling •BrakeSqueal •Conductor’sVoice •FireBoxDoor •SoundOn/Off •SandRelease •WaterInjector •BlowerHiss •CylinderCock/Flangesqueal

InadditiontoFunctionØ(Directionallighting)therearetwelveadditionalsoundfunctionstoallowtheoperatortocapturethefullrangeofuniquesoundsfoundonanoperatingsteamlocomotive.Youcannowfullyimmerseyourselfinthecomplexitiesofprototypeoperationandaddanewlevelofrealismtoyourrailroadingexperience.

Dual-FunctiondecoderismadebyModelRectifierCorpora-tionforAthearn,Inc.

Theinstallationofsoundinalocomotiveaddsanewdimen-siontooperation.Soundmakesatechnicallyperfectstaticmodelcomealiveandenhancestheexperienceofoperation.Youwillfindthatyouwillnolonger‘run’theenginebut,rather,operateitinthecontextofyourlayout.WhetheryouareusingconventionalDCcontroloraDCCsystem,theincorporationofadvancedelectronictechnologywillprovidetheultimaterailroadingexperience.

TheGenesisTMChallengerLocomotiveincludesafactoryinstalledDCCandsoundboardwithspeakers.Theboardismountedinthetender.TheDCCdecoderautomaticallysensesthepowersupplytype(eitherDCorNMRAcompli-antDCCsystem)thatisbeingusedandwilloperatewithoutinterventionfromtheuser.

Hand-HeldWirelessController

IncludedwiththeChallengerlocomotiveisahand-heldwire-lesscontroller.WhenoperatingonconventionalDC,thiscon-trolunitisdesignedspecificallytoallowcontrolofthespeedanddirectionofthelocomotiveaswellasthesesixindividualsoundfunctions: •Bell •Whistle •WaterInjector •AirRelease •BlowerHiss •FireBoxDoor

ThesearemoresoundfeaturesthanhavebeenpreviouslyavailabletotheconventionalDCsounduserinanyformat.TheGenesisTMChallengerLocomotivewilloperateonDCwithouttheuseofthishandheld,however,onlythesteamchuffsoundswillbeavailableinthisoperationalmode.

S o u n d a n d D C C F e a t u r e s

LED Indicator

WhistleBell

Stop

AccelerateDecelerate

Direction

The12-volttransmitterbattery#A23-12,isavailableatanyelectronicsorofficesupplystore.

�

Your new GenesisTM Challenger Locomotive comesfactory equipped with a state-of-the-art Dual Functiondecoder. This means your locomotive will run on anyNMRAcompatibleDCCsystemoron any regularDCTrainControl(HOpowerpack).Caution: Do not run your new GenesisTM ChallengerLocomotiveonanyGscalepowerpack.Youmaydam-agethelocomotivecircuitry.WhenrunningonaDCpowerpack,thislocomotivefea-turesawirelessradiocontrol.Thismakesaccessingthesoundfunctionsandrunningthelocomotivemoreconve-nientwhenfollowingyourtrainaroundthelayout.The transmitter (battery not included) that comes withyourlocomotivehasthefollowingfunctions:1.Button1willstartorstopthebellsounds.2.Button2willoperatethesteamwhistle.3.ButtonSTPwillbringthelocomotivetoagradual

stop.Thisisabuiltinsafetyfeature.PressButtonSTPwhilethelocomotiveisstoppedandyouwillhearthewaterinjectorsound.

4. Button 4 will accelerate the locomotive. When thelocomotivehas reached itsmaximumspeed,pressingButton4will activate the soundof the fireboxdooropeningandclosing.

5.Button3willdeceleratethelocomotive.PressButton3whenthelocomotiveisstoppedandyouwillhearanairreleasesound.

6.Button5(pressedwhilethelocomotiveismoving)willslow the locomotive down, change its direction andspeeditup.Thisisalsoabuiltinsafetyfeature.PressButton 5 when the locomotive is in idle (25%—35%throttlesetting)toactivatetheblowerhisssound.

Note: There are two idle settings that enable varioussounds to be controlled while the engine is stand-ing still. To activate "Idle #1" set the power pack'sthrottle setting at the 25%—35% position, being sure

to keep the transmitter's speed regulator setting off.In "Idle #1" the following sounds can be activated:bell, whistle, water injector, air release, blower hissandfireboxdoor.Toaccessthe"Idle#2"setting,setthepowerpack'sthrottleto100%(again,keepingthetransmitter's speed regulator off). While in "Idle #2"thesamesoundscanbeactivatedwiththetransmitter,withtheexceptionofthefireboxdoor.

DCOperation-AnalogModeTo set up your Hand Held Controller and operate youlocomotive with a DCpower pack, follow these easydirections:

1.Installthebatteryinthetransmitter.2.ConnectthewiresfromyourDCpowerpack's"vari-

abletrackterminals"toyourtrack.3. Place the locomotive on the track making sure all

wheels are aligned correctly to avoid short circuits,whichcanpossiblydamageyourlocomotivecircuitryandpowerpack.

4.TurntheswitchonthepowerpacktoON.5.Slowlyadjust thethrottleuntilyouhear thelocomo-

tive begin to idle. Only during idle can you use thedirection switch on the power pack to change thelocomotive’sdirection.Eithertheheadlightorback-uplightwillilluminatetoindicatethelocomotive’sdirec-tion.Oncethelocomotivebeginsmoving,youcannotusethedirectionswitchonthepowerpacktochangedirection.Youcanonlyuse transmitter tochangethelocomotivedirectionwhile it ismoving.This featureallows you to control another analog locomotive onthesametrack.

6. Your new GenesisTM Challenger Locomotive willalwaysrememberitslastdirectionofoperationregard-

lessofthepositionofthedirectionswitchonthepowerpack.

7.Whenyouusethepowerpack'sthrottletocontrolthelocomotive’s speed, the top speed will be limited bythetransmitter’sspeedsetting.

8.Whenyouusethetransmitter tocontrol thelocomo-tive’sspeed,thetopspeedwillbelimitedbythepowerpack'sthrottlesetting.

9.Ifthelocomotive'stopspeedistoolow,donotsetthepower pack's throttle to maximum. We recommendyousetthethrottleto60%-70%andusethetransmittertocontrolthelocomotivespeed.Thiswillgiveyouthebestoperationrange.

10. Never exceed 18 volts D.C. to the track in analogoperation. Excessive track voltage may damage thelocomotive’scircuitry.Never try tooperate the loco-motiveonA.C.power.

11.Ifthetransmitter’srangebeginstodecrease,thebat-teryneedstobereplaced.

12. We recommend you always use the power pack'sthrottletocontrolthelocomotivespeed.Notonlywillyougetasmootherspeedcontrol,but thebatterylifewillbeextended.

13.Wheneveryoufeelthatthelocomotiveisnotoperat-ing properly you should move the throttle to zero or25%-35% throttle setting (depending on your powerpack)andslowlymovethethrottleupagaintocontrolthelocomotive.

ProgramminginAnalogMode

While inanalogmode,youcanprogram thechuff rateandthesoundvolume.

1.Placethelocomotiveontrack2.TurnthepowerswitchonthepowerpacktoON.

TIPSforAnalogOperation

1.Turnupthethrottleuntilsoundsstartandlocomotiveidles.2.Select the locomotive’sdirectioneitherbythedirec-

tionswitchonthepowerpackorbythetransmitter.3. Slowly start your locomotive moving by using the

power pack’s throttle to set desired top voltage set-ting.

4.Onceunderway,usethetransmitterButton4tospeeduporButton3 to slowdown.Holddown thebuttonuntilyoureachthedesiredspeed.

5. Ifthetopvoltagesettingatmaximumspeedistoolow,usethepowerpacksthrottletoadjustthetopvoltageset-ting.

6.Toconservebattery,usethethrottletocontrollocomo-tivespeedandusethetransmittertoactivatesounds.

7.Whenfinishedrunningyourlocomotive,turnyourpowerpackthrottletoOFFandturnoffthepowerpack’spowerswitch. Any programming changes made in DC analogmodewillaffectanypriorDCCmodesettings.

�

3. Slowly turn the throttle until sounds come on. Oncesoundsbeginyouhave20secondstoenter theprogrammode.

4.EntertheprogrammodebypressingtheButtonSTPthree(3)times.Thelocomotivewillsay“program”aftereachpress.Afterthethird“program,”youwillbeinprogrammode.

5.PressButton4orButton3 to speedupor reduce thechuff rate, respectively.Eachpressof thebuttonadjuststhechuffrateupordownbyoneunit.Eachtimeyouwillhearthelocomotivesay“program”.

6.PressButtonWtotogglebetweenvolumesettings.Youwill hear the locomotive say “program” with the newvolumesetting.

7.Oncefinishedprogramming,turnthepowerswitchonthepowerpack toOFF.Thiswill reset the locomotive andlockinyourprogramming.Toresumeoperation,followthestepsunder“DCOperation”.

ManualVolumeControl

Located on the top of the tender towards the rear,thereare3ovalhatches.Removethemiddlehatchanduseasmallflat-bladedjeweler’sscrewdrivertoadjustthevolume.

Removethishatchtoadjustsound

�

AdditionalInformation

Thedual-functiondecoder installed in this locomo-tive should perform well when used with any NMRAcompatibleDCCsystem.SeeyourDCCmanualonhowtoprogramandoperatethedecoder.Formoreinforma-tionaboutRegister/CV’sandtheirfunctions,pleasereferto the NMRA DCC standards and recommended prac-tices,RP-9.2.2.ThisisavailabledirectlyfromNMRAorontheirwebsiteatwww.nmra.org.

FCCCompliance

This device complies with Part 15 of FCC rules.Operation is subject to the following two conditions;1)Thisdevicemaynotcauseharmfulinterference,and2) This device must accept any interference received,includinginterferencethatmaycauseundesirableopera-tion.

BatteryType #A2312volt

DCCOperation-DigitalMode

Your new GenesisTMChallenger Locomotive willoperate on any NMRA compatible DCC system. Thedual-functiondecoderhasthefollowingfeatures:

•Synchronizedsteamchuffwithrandomsounds•1.5ampcapacity•Programmableforeither2digit,(1-127)or4digit,(1-

9,999)addresses•Programmablestartvoltage•Programmableaccelerationrate•Programmabledecelerationrate•Programmabletopvoltage•Programmablechuffrate•Programmablevolume•Programmable14-28/128speedsteps•Directionallighting(FØ)•12accessorysoundfunctions,(F1-F12)•Advancedconsisting(CV19)•OPSmodeprogramming•CompatiblewithNMRAD.C.C.standard•ComplieswithPart15ofF.C.C.Rules

Operation

TheGenesisTMChallengerLocomotivecanbeoper-ated with the steam sounds on or off. Double clickingyourheadlightbutton(FØ)willturnthesteamsoundsonoroff.Whenthesteamsoundsareturnedoff,allassoci-atedsoundsarealsoturnedoff.

ProgrammingforDCCOperation-DigitalMode

Thisdecoder supportsallprogrammethods includ-ingregistermode,pagedmode,CVprogramming,directmode and programming on the main (OPS mode pro-gramming).Program the locomotive the samewayyouwouldpro-gram any other NMRA compatible decoder with yourDCCsystem.

CVCHART

CV REGISTER DESCRIPTION RANGEFACTORY

VALUE

CV1 R1 Shortaddress 1—127 3

CV2 R2 Startvoltage 0—32 0

CV3 R3 Acceleration 0—32 0

CV4 R4 Deceleration 0—32 0

CV5 --- Topvoltage 0—32 32

CV29 R5Basic

Configuration--- 2

CV7 R7Manufacturer

Version#--- 32

CV8 R8Manufacturer

I.D.--- 143

CV17 ---Longaddress

upperbyte192—231 192

CV18 ---Longaddress

lowerbyte0—255 3

CV19 ---Advanced

consistaddress1—127 0

CV52 ---Soundvolume

MIN/MAX0or1 1

CV64 --- Chuffrate 0—10 5

CV105 ---Useridentifier

number0—255 0

CV106 ---Useridentifier

number0—255 0

--- R6 Pagenumber 0-31 1

STEAMSOUNDSCHART

FUNCTION IDLE/MOVING

DoubleclickFØ SoundsON/OFF

F1 BellON/OFF

F2 Whistle

F3 Airrelease

F4 Coupling

F5 BrakeSqueal

F6 Conductor

F7 FireBoxDoorOPEN/CLOSE

F8 SandRelease

F9 CylinderCock/FlangeSqueal

F10 WaterInjector

F11 BlowerHiss

F12 SoundsON/OFF

�0

LubricationandMaintenanceoftheGenesisTM4-6-6-4Challenger

The GenesisTM Challenger Locomotive has beencarefully engineered to provide years of trouble freeoperation. However, as with all things mechanical, asmall amount of care and maintenance is required toinsure the flawless operation of this fine model. Thesesimple procedures will provide the necessary informa-tiontogiveyouyearsoftrouble-freeenjoyment.

CareandCleaning

Dust and debris are among the leading contribu-torstopooroperationofanyminiaturemechanism.Tomaintain the quality performance of your locomotive,inspectionandcleaningshouldbeperformedonaregularbasis.Asoftbristlebrushshouldbeusedtoremovedustfrom the superstructure. The use of soaps, solvents ordetergentsisnotrecommendedforthispurposeastheywillhaveatendencytomarthefinish. Whennotinuseitisrecommendedthatthelocomo-tiveandtenderbestoredintheprotectivesleeveinwhichitwaspacked.Also,store thewirelesscontroller in thelocomotiveboxwiththebatteryremoved. Wheninspectingtheunderframe,makesurethatalllintanddustareremovedfromthebackofallwheelsets.Dirtbuildupinthisareawillfoulthepick-upwipersandnotallowproperelectricalcontact,negativelyimpactingperformance.

WheelCleaning

The GenesisTM Challenger Locomotive receiveselectricpowerfromalldriversaswellaseightoftheten-derwheelsfrombothrails.This,coupledwiththelongoverallwheelbase,providesforexcellentelectricalcon-

tact. There should be few cases of erratic performancedue topoorcontact.However,over time,dirt from therailswillaccumulateonthewheelsurfacesandwillneedtoberemovedtoassurepeakoperation.Theuseofacot-tonswabtoapplyeitheralcoholoragoodqualitytrackcleaningsolutionisrecommended.Carefullyapplythesolvents,takingcarenottospillanyonthepaintedsur-faces.Alternatively,eitheraninkeraseror‘BrightBoy’abrasive block can be used to remove dirt deposits bycarefullyburnishingthewheelsurfaces.Whencleaningthewheels,alsoremoveanydirtbuildupfromthemetalsur-facesonthebackrimsofthewheels.Thiswillassurethatthewipercontactswillmaintaingoodcontactwiththewheels.

Lubrication

This locomotivewill arrivepre-lubricated from thefactory and will not need additional lubrication until ithasbeen run forquite some time.When it comes timetolubricatethelocomotive,useonlylightweightoilandgear grease that is plastic compatible. Use a minimumamount.Theplasticsusedformanyofthecomponents,suchasthegearsanddrivelines,maketheminherentlyselflubricating.Rememberthattoomuchlubricationcanbemoredetrimentaltothelocomotivethantoolittle.

Themainpointsoflubrication,andtypeoflubricantareasfollows:•Axlebearingsonthedrivers–lightoil•Armaturebearingsonthemotors–lightoil•Oillightbearingsonthewormgearshafts–lightoil•Bearingsonthecentipedetenderwheels–lightoil•Siderodsatthecrankpins–lightoil•Geartowers–lightgeargrease Byfollowingtheexplodeddrawings,accesstoeachoftheseareasshouldbeeasilyaccomplished.Ifyouare

notcomfortablewithdisassembling this locomotiveforlubrication take it to one of the many Model Railroadhobbyshopsthatcanprovidethisservice.

SmokeUnitInstallation

TheGenesisTMChallengerLocomotiveisdesignedtoacceptSeuthe#9or#10smokegeneratorunits.Thesearenotprovidedwiththelocomotiveandmaybeaddedbythepurchaserat theirdiscretion.If it isdecidedthatsmokeunitswillbeinstalled,carefullyfollowtheinstal-lationandoperatinginstructionsprovidedbythesmokeunitmanufacturer.Genesisdoesnotwarrantyanydefectsin these smoke units or damage that may occur to thelocomotivethroughtheiruse. Depending upon the number of smoke stacks onthe locomotive, either one or two smoke units will beneededtocompleteinstallation.Installationisveryeas-ilyaccomplished:Slidethesmokeunitdownthesmokestack until it engages the electric contacts inside theboiler.Addaminimalamountofsmokefluidtotheunitandoperatethelocomotivenormally.Itmaytakeashortamountoftimewhenrunningtoheatupthesmokeunitbeforesmokeisproduced.Thisisnormal.

CouplerInstallation

TheAthearnGenesisChallengermodelcomeswiththeswivelcouplerinstalledonthepilot.Asontheprototypeengines,youcanhavethecouplerexposedonthepilot,orswingitaroundsothatthepilothasnocouplerinuse.The "coupler"on thispart is adummy (non-operating)coupler.

Anoperatingcouplercanbeinstalledonthepilot.Sim-ply unscrew and remove this dummy coupler. Onceremoved,youwillnotethattherearetwothreadednuts.

Anoperatingcouplershouldfitintherearmostholewithnoclearanceproblems,andthecouplerandit’sboxcanbe attached using screw #212 (supplied, see drawing).If,however,yourchoiceofcouplerdoeshaveclearanceproblemswhenmountedintherearthreadednut,simplymountittothethreadednutfurtherforward.

ReplacingtheTractionTireorReplacingtheTractionTireEquippedDriver

To provide tractive effort that rivals the prototype,twotractiontiresarefactoryinstalledonlastsetofdriv-ersoftherearengine.

Toreplaceawornorloosetractiontire:• Remove the crank pin nuts from the traction tire

equippeddriver.•Loosentheremainingcrankpinscrewsfromtheother

drivers.• Remove the eccentric crank, main rods, bushing

and drive rod from the crank pin on the traction tireequippeddriver.

•Slideoffthetractiontireandreplacewithanewtire.•Reversetheprocedureofdisassembly.

Replacementtractiontiresareavailablefromyourlocalhobbyretailer.

Toreplaceadriver:• Remove the crank pin screw and nuts from the side

rods.•Removethesiderodsandeccentriccranks.• Remove the retaining plate from the bottom of the

enginebyremovingthethreeretainingplatescrews.•Removethewiperassembly.•Removethedriverassembly.•Replacewithnewdriverassemblymakingsurethatthe

quarteringmatchestheotherdriversontheengine.•Assembleinthereverseorderthatwasusedinthedis-

assembly.

Useoftheexplodeddrawingsinthisbookletwillgreatlyassistintheabovelistedprocedures.

ReplacementpartsareavailablefromAthearnTrainstotheoriginalpurchaserforwarrantyrepairsonly.Awar-rantyregistrationformmustbeonfileatAthearnTrainstohonoranypartsrequests.

��

348

301

349

339338

337

336342

341

340

361

344

345346

343

347

359358

357

354353352

351350

355356

334

333

331

332

305

313

318

360

360

330329

328327

326

325

324

322

323

321

320

312311

310

319

307

317

316315

314

306

304

303

302

335

309

375

374

376

308

377

348

301

349

339338

337342

341

340

361

344

345346

343

347

358

357

354353352

351350

355356

334

335

333

331309

375

374

376

332

308

305

313

318

360

360

330329

328327

326

325

324

322

323

321

320

312311

310

319

307

317

316315

314

306

304

303

302

459

460

377

COALTENDERwithWOODDECKCOALTENDER

��

348349

339

337342

341

340

361

344

345346

343

347

355356

358

567

568

569

570571

566565

564

561

563

562

560559

357

354353352

351350

301

334

333

331

332

305

313

318

360

360

330329

328327

326

325

324

322

323

321

320

312311

310

319

307

317

316315

314

306

304

303

302

336

338

335

309

375

374

376

308

377

��

Item# Description QTY

301 Tenderleadtruckwheelandaxleassm. 2

302 Centipedesideframemountingscrew 3

303 Centipedesideframe 1

304 Tendercouplerscrew 1

305 Tendercouplerboxcover 1

306 Rearcoupler 1

307 Screw 2

308 FrontTenderWeight 1

309 RearTenderWeight 1

310 Tenderleadtrucksideframe 1

311 Tenderleadtruckspring 1

312 Tenderleadtruckwasher 1

313 Tendercouplerbox 1

314 Tenderairhose 1

315 Couplercutleverassm. 1

316 Couplercutleverwire 1

317 Centipedewheelwithbearingsassm. 2

318 Centipedewheelassm. 3

319 Equalizingspring 3

320 Tenderendchassisdetail 1

321 Tenderplugsocket 1

322 Tenderplug-inPCB 1

323 Tenderplug-inPCBmountingscrews 2

324 Tenderdrawbarattachmentpost 1

325 Centipedepick-upbottominsulator 1

326 Centipedepick-upwipers-right 1

327 Centipedepick-upmountingscrew-short 1

328 Centipedepick-uptopinsulator 1

329 Centipedepick-upwipers-left 1

330 Tenderbottom 1

331 DCCcircuitboard 1

332 DCCboardmountingscrew 2

333 Lefttoolbox-short 1

334 Lefttoolbox-long 1

335 SpeakerHousing 1

336 Lefttoolbox-medium 1

337 Reartenderladder 2

338 Sidepipe-left 1

339 TenderbodyforEngine#3985 1

340 Tenderapron 1

341 Tenderfrontgrabirons-type2 1

Item# Description QTY

342 Tenderfrontgrabirons-type1 4

343 Tenderfrontdetail 2

344 Sidepipe-right 1

345 Righttoolbox-short 1

346 Righttoolbox-long 1

347 Tenderholddownscrew 2

348 Tendermarkerlamps 2

349 Tenderrearlightlens(clear) 1

350 Tenderdeckrearhandrail 2

351 Tenderlightbar(clear) 1

352 Back-uplightlens(clear) 1

353 Back-uplightbase 1

354 Back-uplightconduit 1

355 Tenderdeckhandrailwire 2

356 Tenderdeckhandrail 2

357 Waterfillhatches 3

358 Tenderdecktoolbox 1

359 Coalbunker(full) 1

360 Brasssleeve 2

361 Tendersidehandrail 2

362 TenderBody 1

374 FrontTenderWeightScrews 2

375 Centipedepick-upmountingscrew-Long 2

376 Speaker 2

377 SpeakerHousingMountingScrew 1

459 Coalbunker(partiallyfull) 1

460 Woodtenderdeck 1

PartsspecifictoTenderwithOilBunker

559 Oilbunker 1

560 Oilfillerhatches 2

561 Oilfillervents 1

562 Oilbunkerwalkway 1

563 Oildipstick 1

564 Oilpipe#1 1

565 Oilbunkerdetail#1 1

566 Oilbunkerdetail#2 1

567 Sandbox 1

568 Oilbunkerdetail#3 1

569 Oilpipe#2 1

570 Oilbunkerhandrailwire 2

571 Oilbunkerhandrailassm. 2

OILTENDER

Item# Description QTY1 Cabsideslidingwindowglazing-right 12 Cabsidefixedwindowglazing-right 13 Cabdoorspring 14 Cabdoorhingepin 15 Cabdoorsupport 16 Cabrearhandrail 17 Cabdoor 18 Cabdoorglazing-left 19 Cabdoorglazing-right 110 Cab 111 Roofhatch 112 Roofhatchhinge 113 Roofhatchhingepins 214 Cabsidefixedwindowglazing-left 115 Cabsideslidingwindowglazing-left 116 Cabfrontwindowglazing(clear) 217 Screw 118 Cabgrabiron-right 119 BoilerHalf-top 120 Generators 221 Generatorbase 122 Safetyvalves 423 Safetyvalvebase(3valve) 124 Safetyvalve 125 Safetyvalvebase(2valve) 126 SteamDomecover 127 Boilerscrew 128 Piping 129 Boilertop-dualstack 130 Sanddomegrabiron 431 Piping 132 Smallhandrail 433 Whistle 134 Piping 135 SmokeStack 236 BellBracket 137 Bell 138 Piping 139 Piping 140 Piping 141 Numberboardlens(clear) 242 Numberboardfronthousing 243 NumberboardPCB 2

Item# Description QTY87 Walkway-rearleftside 188 Walkway-frontrightside 189 Walkway-frontleftside 190 Pipingforrearcylinder-left 191 Ballheadshaft 292 Pipingforfrontcylinder 293 LinkPipeforfrontcylinder 294 Boilerbottomhalf 195 Screwforpiping 296 Pipingundersmokebox 197 Pipingforrearcylinder 198 Piping 199 Piping 1100 Powerreversecylinder 1101 Screw 8102 Piping 1103 Screw 2104 Trailingtruckspring 2105 Brasssleeve 3106 Rearframescrew-rear 1107 Rearframe 1108 Framecover 1109 Blowdownpipingundercab 1110 Piping 1111 Feedwaterpipingundercab 1112 Dropplate 1113 Backhead 1114 Fireboxdoor 1175 Couplersupportfordummyswivelcoupler 1200 Boilertoppart 1201 E-ring 2202 Boilerbottompiping 1203 Boilersidepart 1204 UPplaque 1205 Metalwireforpiping#1 1206 Metalwireforpiping#3 1207 Metalwireforpiping#4 1208 Cabgrabiron-left 1209 Plug 1212 Ashpan-right 1213 Ashpan-left 1214 Smokeboxnumberboard-rectangular 1215 Singlesmokestack 1216 Boilertoppart-singlestack 1

Item# Description QTY44 Numberboardmountingbracket-right 145 Drophandrail-left 146 Wirehandrailassm.-left 147 Numberboardmountingbracket-left 148 Smokeboxdoor 149 Markerlight 250 Stantionsforsmokeboxhandrail 151 Wireforsmokeboxhandrail 152 Smokeboxnumberboard 153 SmokeunitPCB 154 Smokeunit(notsupplied) 255 LocomotivePCB 156 Piping 157 Drophandrail-right 158 Wirehandrailassm.-right 159 Headendthrottlelever 160 Die-Castboilerinsert-top 161 Driveshaftcoupler 262 Tenderdrawbar 163 Hexcouplingshaft 264 Motor/Flywheelassm. 165 Drawbarcenteringspring 166 Washer 267 Metalwireforpiping 168 Smokeunitcontactstrip 169 Insulatorplateforsmokeunit 170 Die-Castboilerinsert-bottom 171 Piping 172 Piping 173 Piping 174 Reservior 175 Pipingundercab 176 Smokeunitplug 177 Airtank 178 Insulatorplate 179 Piping 180 Pipingundercab 181 Piping 182 Pipingundercab 183 Cabjumpseats 284 Cabseat(engineerandfireman) 285 JohnsonBar 186 Walkway-rearrightside 1

SUPERSTRUCTUREPARTSLIST

78

79

86

83

98

66

11570

20720659

5857

43 44 45

4647

65

62 6463

61

60

56

55 54

4849

12

5

9

87

4

3

6

10 18 11 12 13 208 14 15

16

17

19 20 2122 23 24 25

26 2728 200

29 30 31 32

36

33 34 35

3738

3940 41 42

5051

20452

53

69

68

213203 9799

202

100101

212

102103104

105106

107

108

109205110

209111

112

113

114 83

84

85

87

8988

82

7780

81 6776

717574

73 72

90

94

96

20195 93 92

91

43 44 45

4647

4849

12

6

10 18 11 12 13 208 14 15

16

17

19 20 2122 23 24 25

26 2728 200

29 30 31 32

36

33 34 35

3738

3940 41 42

5051

214

UNIONPACIFIC CLINCHFIELD

RIOGRANDE

��

��

WHEEL ASSY WITHOUT TIRE

166

162161160

136

137

147

146

154

155

156

150151

152

153

173

147

149

148

146

145144143

140141

142

131

130

129128 127

117

116

118

132

125126 124 123

133

139

134

135

119120

121

122157

158

174

173

199

168

167

191 190 189 188187

186185184

183182

181

180179

178

198

194

176195

196

197

193192

175

177

164163

159

138

165

169172

171

170

211

Item# Description QTY

158 Frontenginepick-upwiperassm. 1

159 Frontenginevalvegearassm.-right 1

160 Frontenginegeartowercover 1

161 Frontengineframeandgeartower 1

162 Frontenginevalvegearhanger-rear 1

163 Frontenginevalvegearhanger-front 1

164 Pistonvalveshaft 2

165 Frontenginevalvegearassm.-left 1

166 Eccentriccrank-left 2

167 cylinderparts 1

168 Frontcylindercasting 1

169 Pilottruckaxleretainers 2

170 Pilottruckframe 1

171 Pilottruckwheelsandaxles 2

172 Screwforpilottruck 1

173 Cylinderweight 4

174 Cylinderpart 1

176 PilotAirHose 1

177 Dummyswivelcoupler 1

Item# Description QTY

197 Frontcouplerboxcover 1

198 Pilotcouplerboxscrew 1

199 Pilottruckwasherandspring 1

210 Tractiontires 2

211 Wheelassm.Withouttractiontires 1

Item# Description QTY

178 Pilot 1

179 Couplerliftbarassm. 1

180 Couplerliftbarwire 1

181 FlagHolder 2

182 Aircompressor 2

183 PilotShield 1

184 LEDaccessplug 1

185 HeadlightLED 1

186 Headlightlightbar(Clear) 1

187 Pilothandrail-left 1

188 Wireforpilothandrail-left 1

189 Headlightlens(Clear) 1

190 Headlight 1

191 Headlightnumberboardlens(clear) 2

192 Pilothandrail-right 1

193 Wireforpilothandrail-right 1

194 Coupler 1

195 Couplersupport 1

196 Frontcouplerbox 1

Item# Description QTY

139 Rearengineframeandgeartower 1

140 Idlergear#3 2

141 Idlergear#2 2

142 Rearenginevalvegearassm.-right 1

143 Rearenginegeartowercover 1

144 Idlergear#1 2

145 Compoundgear 2

146 Wormgearassembly 2

147 Wormgearassemblyretainer 2

148 Rearenginevalvegearhanger 1

149 Rearenginevalvegearassm.-left 1

150 Rearenginepistonvalvequides-right 1

151 Rearenginecylinderpart-right 1

152 Rearcylindercasting 1

153 Frontandrearenginecylinderpart2 2

154 Frontandrearenginecylinderpart1 2

155 Rearenginecylinderpart-left 1

156 Rearenginepistonvalvequides-left 1

157 Frontenginebottomretainingplate 1

Item# Description QTY

115 Screw 1

116 Trailingtruckwheelandaxleassm. 2

117 Trailingtruckhand-wheel 1

118 Trailingtruckframe 1

119 Rearenginebottomretainingplate 1

120 Rearenginepick-upwiperassm. 1

121 Pick-upwiper 8

122 Pickupinsulators 4

123 Mainrod 4

124 Crankpinscrew 8

125 Driverod 4

126 Trailingtruckwasher 2

127 Eccentricrod 4

128 Eccentricrodrivet 4

129 Eccentriccrankrivet 4

130 Crankpinnut 4

131 Eccentriccrank-right 2

132 Driverodbushing 4

133Rearenginewheelassm.#1(geared)withtractiontires

1

134 Rearenginewheelassm.#2 1

135 Rearenginewheelassm.#3 1

136 Frontenginewheelassm.#1 1

137 Frontenginewheelassm.#2(geared) 1

138 Frontenginewheelassm.#3 1

RUNNINGGEAR

Athearn1550 Glenn Curtiss Street

Carson, CA 90746www.athearn.com