Peterbilt 337 2017 - OPERATING THE ENGINE

OPERATINGTHEENGINE
OPERATINGTHE
ENGINE
StationaryPTOOperation
Thecruisecontrolbuttonsforthis
vehiclemaybeusedtocontrolthe
enginerpmwhenthevehicleis
stationaryandtheoperatorwantsto
usethePTOontheengine.Usethe
cruisecontroloptionsinthesame
manneraswiththevehicleinmotion,
butinsteadofsettingvehiclespeed,
theenginespeed(RPM)issetinstead.
SettingIdleSpeed
1.Ensureparkingbrakesareapplied.
2.EnsuretransmissionisinNeutral.
3.EngagePTOperthe
manufacturer'soperating
instructions.
4.MovetheON/OFFswitchtothe
"ON"position.
5.ToggletheSET/RESUMEswitch
toobtainthedesiredenginerpm.
CancellingCruiseControl
Youcancancelcruisecontrolinany
oftheseways:
•Tapthebrakepedal.
•Taptheclutchpedal.
•MovetheON/OFFswitchtothe
"OFF"position.
EngineFanControl
TheenginefancanbeturnedON
usingaswitchthatismountedonthe
accessoryswitchpanel.Thisletsyou
setthefantomanualorautomatic
operation.
•WiththeignitionkeyturnedON
andthefanswitchintheMANUAL
position,theenginefanwillbeON
regardlessofenginetemperature.
•Withtheenginefanswitchinthe
AUTOposition,theenginefanwill
automaticallyturnONwhenthe
enginecomputersendsasignal
requiringtheenginefantobeon.
(03/17)Y53-6060-1C14-11
4