CabHeaterSystem
ThecabheatersystemusedontheGroundsmaster5910consistsofthe
followingcomponents:
1.Aheatercoremountedintheheadlinerofthecab.
2.Hosestoallowacircuitforenginecoolanttocirculatethroughtheheatercore.
3.Ablowerfanmotorthatprovidesairmovementthroughtheheatercoreand
intothecab.Thefanmotorisacomponentofthemixingboxlocatedinthe
cabheadliner.Thefanmotorisalsousedfortheairconditioningsystem.
4.Operatorcontrolstoadjustthefanspeedandtocontrolthecabair
temperature.
AirConditioningSystemPerformance
Thereareanumberoffactorsthatcanaffecttheperformanceofthe
Groundsmaster5910airconditioningsystem.T oensurethebestsystem
operation,inspectthefollowingcomponents.
1.Makesurethattheheatercontrolfullyclosestheheatervalveinthecab
headliner.
2.Makesurethatthecondenserandevaporatornsareclean.
3.Verifythatrefrigerantchargequantityandsystemoperatingpressuresare
correct.
4.Makesurethatexposedmetalsurfacesinsidecabareinsulated.
5.Ifambienttemperaturesexceeds43ºC(110ºF),applyadditionalwindow
tintingtolowersolarheatloadtocab.
Groundsmaster
®
5900&5910
Page9–3
OperatorCab:GeneralInformation
16227SLRevB
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