Allison Transmission 4700

LISTOFWARNINGS(cont'd)
Thismanualcontainsthefollowingwarnings—
ITISYOURRESPONSIBILITYTOBEFAMILIARWITHALLOFTHEM.
•Tohelpavoidinjuryorpropertydamagecausedbysudden
movementofthevehicle,donotmakeshiftsfromN(Neutral)
toD(Drive)orR(Reverse)whentheengineisabovelow
idlerpm.Thevehiclemaylurchforwardorrearwardandthe
transmissioncanbedamaged.Avoidthisconditionbymaking
shiftsfromN(Neutral)toaforwardrangeorR(Reverse)only
whenthethrottleisclosedandtheservicebrakesareapplied.
•Tohelpavoidunexpectedvehiclemovementthatmightcause
death,seriousinjury,orpropertydamage,alwayshaveyour
footonthebrake,thethrottlereleased,andtheengineat
idlebeforemakingaN(Neutral)toD(Drive);N(Neutral)toR
(Reverse);D(Drive)toR(Reverse);orR(Reverse)toD(Drive)
selection.
•R(Reverse),R1(DeepReverse),orR2(StandardReverse)
maynotbeattainedduetoanactiveinhibitor.Alwaysapply
theservicebrakeswhenselectingR(Reverse),R1(Deep
Reverse),orR2(StandardReverse)topreventunexpected
vehiclemovementandbecauseaservicebrakeinhibitmaybe
present.WhenR,R1,orR2isashing,itindicatestheshift
toR(Reverse),R1(DeepReverse),orR2(StandardReverse)
isinhibited.DetermineifdiagnosticcodesareactiveifR
(Reverse),R1(DeepReverse),orR2(StandardReverse)isnot
attained.Referto7.5SELECTORDISPLAYDESCRIPTIONSFOR
ACTIVEDIAGNOSTICTROUBLECODES(DTCs)ANDINHIBITS
•Whenstartingtheengine,makesuretheservicebrakesare
applied.Failuretoapplytheservicebrakescanresultin
unexpectedvehiclemovement.
•IfyouletthevehiclecoastinN(Neutral),thereisnoengine
brakingandyoucouldlosecontrol.Coastingcanalsocause
severetransmissiondamage.Tohelpavoidinjuryandproperty
damage,donotallowthevehicletocoastinN(Neutral).
10