Toro Groundmaster Series - Electrical System Quick Checks

ElectricalSystemQuickChecks
TestingtheChargingSystem
TheGroundsmaster3200/3300/3310machinesuseasingle12Voltmaintenance
freebatterymountedontheleftsideofthemachinebehindthefueltank.The
batteryischargedbyeithera40Amp(models31900/31901)or55Amp(Models
31902/31903/31907/31909)12voltalternatormountedtotheengine,whichis
drivenbyasinglerowV-belt.
UsetheTDMdisplay/controllerscreentomonitorthe12Voltelectricalsystem.It
willtellyouifthechargingsystemhasanoutput,butnotitscapacity.
1.Checktomakesureeachalternatordrivebeltisnotloose,wornordamaged.
2.TurnthekeyswitchtotheONpositionandsettheTDMdisplay/controller
screentoviewthevoltmeter(batteryicon).
3.Recordtheinitialsystemvoltage.
4.Starttheengineandwarmtheenginetonormaloperatingtemperature.
5.SettheengineRPMto2300RPM.
6.Turnonalladditionalsystemloads(e.g.lights,blower).
7.Thesystemvoltageshouldbeatleast0.5volthigherthentheinitialvoltage
recordedinstep3.
8.Ifthechargingsystemperformanceislessthandesired,refertotheYanmar
ServiceManualorTroubleshootingManualforadditionalinformation.
Groundsmaster
®
3200,3300and3310
Page6–7
ElectricalSystem:ElectricalSystemQuickChecks
19240SLRevA