Allison Transmission 3000 Series User Manual

4.1.2USINGBUMP-SHIFTLEVERSELECTORTOSELECTRANGE.
RefertoFigure4–1.
•R–REVERSE:selectsR(Reverse)gear.BumpingthelevertowardR
willselectthealternatereversegearrangeinselect4700/4800model
calibrations.
•N–NEUTRAL:mustbeselectedpriortostartingtheengine.
•D–DRIVE:selectsthehighestavailableforwardrange.Transmission
shiftstostartinggearandwillautomaticallyupshiftthroughthegears,as
operatingconditionspermit,untilthehighestavailablegearisattained.
•D–DRIVE(Primary(ROAD)ModeOFSModel):selectsthehighest
availableforwardrange.Transmissionshiftstostartinggearandwill
automaticallyupshiftthroughthegears,asoperatingconditionspermit,
untilthehighestavailablegearisattained.
•D–DRIVE(Secondary(RIG)ModeOFSModel):goestotherange
setinthecalibrationsetforstationarymode.
•L–LOWRANGE:selectsthelowestavailableforwardrange.The
transmissionwillautomaticallydownshifttothelowestrangeusingthe
preselectdownshiftschedule.Onceattained,thetransmissionwillhold
thelowrangeuntilanotherrangeisselected.
•M–MANUALSELECT:movingtheleverfromtheDrivepositioninto
theManualSelectpositionallowstheoperatortoselectaloweror
higherforwardgearrange.
•InitiallymovingthelevertoMsetstheRangeSelectedtothesame
forwardrangeasthecurrentRangeAttained,shownintheMONITOR
positiononthedisplay,alsoreferredtoasanExpressPreselect.
•EachDOWNSHIFT(-)bumpdecreasestheRangeSelectedbyone
forwardrange.
•EachUPSHIFT(+)bumpincreasestheRangeSelectedbyoneforward
gearrange.
•Thesearemomentarybumppositions–whentheoperatorreleasesthe
lever,theleverreturnstotheDriveposition.
•TheManualSelectpositionisaccessibleonlyfromtheDriveposition
andaffectsonlyforwardgearranges.
Detent:Theleverselectorfeaturesadetenttopreventinadvertentshifting
betweenR(Reverse),N(Neutral),D(Drive),andL(Low).T oreleasethelever
fromanyofthesepositions,thedetentmustrstbeunlockedbydepressing
thengerreleasebuttonontheshifterhandle.
Thebump-shiftleverselectorisavailableinthefollowingcongurations:
46

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