Allison Transmission 4750 OFS User Manual

4.2.2.1PRESELECTSCHEDULEFORDOWNSHIFTS.........61
4.2.2.2NON-ENGINEBRAKEOPERATION...............61
4.2.2.3ENGINEBRAKEOREXHAUSTBRAKEOPERATION.....62
4.2.2.4RETARDERMODESHIFTSCHEDULE.............63
4.2.3ACCELERATORCONTROL.........................63
4.2.3.1KICKDOWNSHIFTSCHEDULE(N/AforOFSModels).....63
4.2.4PRIMARYANDSECONDARYSHIFTSCHEDULES(N/AforOFS
Models)....................................63
4.2.5PERFORMANCE/ECONOMYSHIFTSCHEDULES(N/AforOFS
Models)....................................64
4.2.6DYNAMICSHIFTSENSING(DSS)(N/AforOFSModels)........65
4.2.7OVER-TEMPERATURESHIFTSCHEDULE(N/AforOFSModels)...67
4.2.8CRUISEMODESHIFTSCHEDULE....................67
4.2.9ACCELERATION-BASEDPATTERN(ABP)................67
4.2.10ACCELERATIONRATEMANAGEMENT(ARM)(N/AforOFS
Models)....................................68
4.2.11LOWSPEEDGRADEASSIST.......................68
4.2.12ALLISONTRANSMISSIONFUELSENSE
®
2.0(N/AforOFS
Models)....................................69
4.2.12.1FUELSENSE
®
2.0TerminologyDescriptions...........71
4.2.12.2FUELSENSE
®
2.0DriverIndicator(withFuelSense
®
2.0
Package(N/AforOFSModels))..................71
4.3USINGTHEHYDRAULICRETARDER.......................72
4.3.1RETARDERCAPACITYREDUCTION...................76
4.3.1.1BASEDONRETARDERTEMPERATURE............77
4.3.1.2BASEDONTRANSMISSIONSUMPTEMPERATURE.....77
4.3.1.3BASEDONENGINEWATERTEMPERATURE.........77
4.3.2RETARDER/CRUISECONTROLINTERACTIONS............78
5.0CAREANDMAINTENANCE
5.1PERIODICINSPECTIONS..............................79
5.2PREVENTMAJORPROBLEMS...........................80
5.3IMPORTANCEOFTRANSMISSIONFLUIDS....................80
5.4RECOMMENDEDAUTOMATICTRANSMISSIONFLUIDS............81
5.5KEEPINGFLUIDCLEAN...............................82
5.6FLUIDANALYSIS...................................82
5.7TRANSMISSIONFLUIDREFILL...........................82
5.8PERIODICFLUIDLEVELCHECKS.........................83
5.8.1FLUIDCHECKUSINGDIPSTICK.....................84
5.8.1.1COLDCHECKPROCEDURE...................87
5.8.1.2HOTCHECKPROCEDURE....................88
5.8.1.3TRANSMISSIONDIPSTICKMARKINGSILLUSTRATION...89
5.8.2FLUIDLEVELCHECKSUSINGALLISON5THGENERATIONOR
NEWERSHIFTSELECTORS........................89
5.8.2.1ELECTRONICFLUIDLEVELCHECKPREREQUISITES....89
16

Allison Transmission 4750 OFS Specifications

General

Brand	Allison Transmission
Model	4750 OFS
Category	Controller
Language	English