Exmark Quest 4500-450 - Specifications; Model Numbers; System Specifications; Operator Controls

Specications
Specications
ModelNumbers
SerialNos:790,000andHigher
QST20BE422;QST22BE482;QST24BE522
Systems
Engine
•EngineSpecications:SeeyourEngineOwner’s
Manual
•RPM:
–20HP
FullSpeed:3300±100(max)RPM(NoLoad)
Idle:1650(min)RPM
–22HP&24HP
FullSpeed:3650±100(max)RPM(NoLoad)
Idle:1650(min)RPM
FuelSystem
•Capacity:4.0gal.(15.1L)
•TypeofFuel:Regularunleadedgasoline,87
octaneorhigher.
•FuelFilter:
Briggs&StrattonP/N695666
•FuelShut-OffValve:1/4turnincrements(“ON”,
“OFF”)
ElectricalSystem
•ChargingSystem:FlywheelAlternator
•ChargingCapacity:16amps
•BatteryType:BCIGroupU1
•BatteryVoltage:12Volt
•Polarity:NegativeGround
•Fuses:One25amp,one20amp;one15amp
bladetype
•Diode:TVS
SafetyInterlockSystem
•PTOmustbedisengaged,brakeengaged,and
motioncontrolleversout(neutrallock)tostart
engine.(Itisnotnecessaryfortheoperatortobe
intheseattostarttheengine.)
•OperatormustbeinseatwhenPTOisengaged,
brakeisdisengaged,ormotioncontrolleversare
movedinorenginewillstop.
•Enginewillstopifeithertheleft,theright,or
bothleversaremovedfromneutrallockposition
whilebrakeisengaged.
OperatorControls
•SteeringandMotionControl:
Note:Motioncontrolleversareadjustableto
twoheights.
–Separatelevers,oneachsideoftheconsole,
controlspeedanddirectionoftravelofthe
respectivedrivewheels.
–Steeringiscontrolledbyvaryingtheposition
oftheleversrelativetoeachother.
–Movingmotioncontrolleversoutward(in
slots)locksthedrivesysteminneutral.
•PTOEngagementSwitch:Engageselectricclutch
(todrivebelt)whichengagesmowerblades.
•ParkingBrakeLever:Engagesparkingbrake.
•DeckHeightAdjustmentPin:Setscuttingheight
todesiredposition.
•DeckLiftAssistLever:Footpedalthatassists
inraisingthedeck.
Seat
•Type:Standardseatwithhighback,foampadded
withspringsuspensionandarmrests(armrests
areoptionalonthe42inchunit).
•Mounting:Hingedtotiltupforaccessto
hydraulicpumps,batteryandothercomponents.
Heldintiltedpositionwithlanyard.Adjustable
foreandaft.
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