Allison Transmission 3000 Series User Manual

2.ParkthevehicleonalevelsurfaceandshifttoN(Neutral).
3.Applytheparkingbrakeandallowtheenginetoidle(500–800rpm).
4.Cleandebrisfromaroundtheendofthelltubebeforeremovingthe
dipstick.
5.Removethedipstickandwipeitclean.
6.Insertthedipstickintothelltube,pushingdownuntilitstops,butstillin
itslooseorunscrewedposition.
7.Removethedipstickandobservetheuidlevel.Thesafeoperating
levelisanywherewithintheHOTRUNbandonthedipstick.Referto
Figure5–1.
8.IfthelevelisnotwithintheHOTRUNband,addordrainuidas
necessarytobringthelevelwithintheHOTRUNband.Referto
5.7TRANSMISSIONFLUIDREFILL.
9.Measureuidlevelmorethanonce.Besureuidlevelmeasurements
areconsistent.Ifreadingsarenotconsistent,besurethetransmission
breatheriscleanandnotclogged.
10.Ifreadingsarestillnotconsistent,contactyournearestAllison
distributorordealer.
5.8.1.3TRANSMISSIONDIPSTICKMARKINGSILLUSTRATION
RefertoFigure5–1.
5.8.2FLUIDLEVELCHECKSUSINGALLISON5THGENERATIONOR
NEWERSHIFTSELECTORS.
TheOLSisstandardinallmodelsexceptthe3700SPand4700/4800models
equippedwitharetarder.WiththeOLSandanAllison5thGenerationor
newershiftselector,youcangetamoreaccurateelectronicuidlevelcheck
thanwithadipstick.
5.8.2.1ELECTRONICFLUIDLEVELCHECKPREREQUISITES
•OLSisfunctionalandisauto-detectedbytheTCM.
•VehiclehasanAllison5thGenerationornewershiftselectorwithVFD.
NOTE:Thestripbuttonselectorcannotdisplayoillevel.
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Allison Transmission 3000 Series Specifications

General

Type	Automatic Transmission Controller
Control Module	Integrated
Shift Energy Management	Yes
Number of Gears	6
Torque Converter	Yes, with lock-up clutch
Retarder	Optional
PTO Provision	Yes
Input Voltage	12V or 24V
Communication Protocol	SAE J1939
Operating Temperature Range	-40°C to +85°C