Toro Groundsmaster 4500-D Series Service Manual page 130

Cutting Deck Raise
Hydraulic System: Hydraulic Flow Diagrams
To raise the five (5) cutting decks on a Groundsmaster 4500-D, the rear of the lift
switch is depressed. The switch acts as an input to the TEC controller (T1) which
then provides an electrical output to solenoid valve S5 in the lift control manifold.
Energized solenoid valve S5 shifts to allow a passage for oil flow to the rod ends
of the five (5) deck lift cylinders. The oil flow causes the lift cylinders to retract
and raise all of the cutting decks. The junction manifold orifice leading to the #1
deck is bypassed during deck raising.
Page 5–28 Groundsmaster ® 4500-D/4700-D
19245SL Rev A