Allison Transmission T 280

(A)–Vertical
(B)–Horizontal
(1)–6Position
(2)–3Position
Figure3–2.TypicalAllisonStripPushButtonShiftSelectors
3.3COLDWEATHERSTARTS
Ifavehicleisstartedincoldambientconditionsbelow-5°C(23°F),the
transmissionwillbelimitedto2(SecondRange),N(Neutral),andR(Reverse)
operation(3(ThirdRange)forthe4700/4800transmission)untilthesump
temperatureexceeds-1°C(30°F).Oncethesumptemperaturereachesthis
threshold,normaloperationwillresumeforthetransmission.
Ifthetransmissionuidtemperatureisbelow10°C(50°F)followthese
procedureswhenmakingdirectionalshiftchanges:
•Toshiftfromforwardtoreverse,selectN(Neutral)andthenR(Reverse).
•Toshiftfromreversetoforward,selectN(Neutral)andthenD(Drive)or
otherforwardrange.
NOTE:Duringcolduidconditions,alwaysplacethetransmissionin
N(Neutral)priortoanydirectionchanges.
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