Toro Groundsmaster 3320-D - Page 107

ReverseDirection
Thetractioncircuitoperatesessentiallythesameinreverseasitdoesinthe
forwarddirection.However,theowthroughthecircuitisreversed.Pushingthe
bottomofthetractionpedalrotatesthevariabledisplacementpumpswashplate
inthetransmissiontocreateaowofuid.Thisuidisdirectedtothexed
displacementmotorinthetransmissionwhichturnsthedifferentialinputshaftto
drivethefrontwheelsinareversedirection.
Fluidowingfromthemotorreturnstothevariabledisplacementpumpandis
continuouslypumpedthroughtheclosedtractioncircuitaslongasthetraction
pedalispushed.
Thechargecircuitfunctionsthesameinreverseasitdoesintheforward
direction.
Groundsmaster
®
3280-D/3320
Page5–23
HydraulicSystem:HydraulicFlowDiagrams
05138SLRevB