Mow Circuit
Hydraulic flow for the mow circuit is supplied by two sec- tions of the gear pump. The gear pump section closest to the piston (traction) pump supplies hydraulic flow to the wing decks, while the next gear pump section sup- plies the center deck.
Each cutting deck is controlled by a hydraulic manifold equipped with a solenoid control valve (S), bypass car- tridge (LC1), brake cartridge (LC2) and relief cartridge (RV1). When the the deck solenoid valve (S) is not ener- gized (PTO switch OFF), hydraulic flow
The solenoid valve (S) for each wing deck is
Return oil from the deck motors is directed to the oil cool- er and oil filter. Deck motor case drain leakage returns to the hydraulic reservoir.
Maximum mow circuit pressure is limited at each deck by a relief valve (RV1) in the hydraulic manifold. The front and left deck relief valves are set at 3000 PSI (207 bar) and the right deck relief valve is set at 2000 PSI (137 bar).
Circuit pressure can be measured at port (G) of the hy- draulic manifold for each cutting deck.
System
Hydraulic
Groundsmaster | Page 4 | Hydraulic System |
