Toro Groundsmaster 3280-D Service Manual page 107

Reverse Direction
Groundsmaster ® 3280-D/3320
05138SL Rev B
The traction circuit operates essentially the same in reverse as it does in the
forward direction. However, the flow through the circuit is reversed. Pushing the
bottom of the traction pedal rotates the variable displacement pump swash plate
in the transmission to create a flow of fluid. This fluid is directed to the fixed
displacement motor in the transmission which turns the differential input shaft to
drive the front wheels in a reverse direction.
Fluid flowing from the motor returns to the variable displacement pump and is
continuously pumped through the closed traction circuit as long as the traction
pedal is pushed.
The charge circuit functions the same in reverse as it does in the forward
direction.
Page 5–23 Hydraulic System: Hydraulic Flow Diagrams