Allison Transmission 3000

Table5–3.TransmissionFluidCapacity
InitialRellRell
TransmissionSump
Liters
Quarts
Liters
Quarts
4inch27291819
3000Series
2inch25261617
4inch48514042
4000Series
*
2inch41433335
*
Subtract2.8Liters(3Quarts)fortransmissionswithoutPTO.
5.8PERIODICFLUIDLEVELCHECKS
Eventhoughtransmissionuidisnotconsumedduringtransmissionoperation
asengineoilmightbe,periodicuidlevelchecksshouldbemadepriorto
placingthevehicleinserviceorjustafterreturningfromservice.Periodicuid
levelcheckshelppreventmechanicalfailureofavehicleortransmission
component.Periodicchecksalsohelptodetectuidleaks,coolerfailure
(contaminatingthetransmissionuid),uidoverll,uidunderllorthewrong
kindofuidusedthelasttimethetransmissionwasserviced.
Checkthetransmissionuidlevelbyoneofthefollowingmethods:
•Dipstick
•UsingAllison5thGenerationor6thGenerationshiftselectorto
electronicallychecktheOilLevelSensor(OLS)locatedinthe
transmissioncontrolvalvemodule
•UsingAllisonDOC
®
tocheckthelevelwiththeOLS
NOTE:OLSisnotavailableinthe3700SPorthe4700/4800
transmissionequippedwiththeretarderoption.
ThedipstickismarkedwithtemperaturebandsforaCOLDandHOTuid
levelcheck.TheuidcheckmarkedCOLDisdesignedtoallowtheuidlevel
tobecheckedfrom16°C(61°F)to60°C(140°F).
NOTE:Onlyusethischecktoconrmadequateuidvolumefora
coldstart-upandnottosetuidlevelsforcontinuedoperation.
TheOLSisdesignedtoautomaticallycompensateforuidtemperature
uctuations(thermalexpansion)withinitsoperatingbandparametersfor
uidtemperature.AllisonTransmissionrecommendsusingtheAllison5th
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