Volvo VN Specifications Page 373

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364Volvo,US10EmissionsSolution
TheHighExhaustSystemTemperature(HEST)Iconcomesonwhenthevehicle
temperaturebecomesexcessive.TheIconalsocomesonduringtheREGEN.
W3007444
HighExhaustSystemTemperature(HEST)Icon
Note:ItisimportanttoperformaRegenerationwhenrequiredtoavoidengine
problems.Long-termengineoperationwithAftertreatmentDPFRegeneration
Requiredscreendisplayedmayresultinalossofengineperformance,reduced
horsepower,torqueandspeed,andtemperaturederate.Also,theAftertreatmentDPF
maybecomeoverloadedwithsootandrequireserviceataauthorizedVOLVOdealer.
AftertreatmentDPFRegenerationRequiredcannotbeinitiatedifitisnotrequired.
ThefollowingconditionsmustbemetforparkedRegeneration:
Parkingbrakeonandtransmissioninneutral
Minimum10voltsbatterycharge
Enginerunning
Acceleratorandclutchpedalreleased
PTOnotactive
ParkedAftertreatmentRegenerationrequired,messagedisplayed
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