Service Manual

Groundsmaster 4100--D/4110--DHydraulic System Page 4 -- 2
Specifications
Item Description
Piston (Traction) Pump Eaton Variable Displacement Piston Pump
(Model 72400)
Maximum Displacement (per revolution) 2.48 in
3
(40.6 cc)
System Relief Pressure: Forward 4000 PSI (274 bar)
System Relief Pressure: Reverse 5000 PSI (343 bar)
Charge Pressure 250 PSI (17 bar)
Front Wheel Motors Eaton Fixed Displacement Piston Motors
(Model 74328)
Displacement (per revolution) 3.02 in
3
(49.4 cc)
Rear Axle Motor Eaton Fixed Displacement Piston Motor
(Model 74315)
Displacement (per revolution) 2.01 in
3
(32.9 cc)
Gear Pump Casappa 4 section, positive displacement gear type pump
Section P1/P2 Displacement (per revolution) 1.37 in
3
(22.46 cc)
Section P3/P4 Displacement (per revolution) 0.56 in
3
(9.16 cc)
Steering Control Valve Eaton Steering Unit, Series 5
Displacement (per revolution) 6.1 in
3
(100 cc)
Steering Relief Pressure 1350 PSI (93 bar)
Lift/Lower Relief Pressure 2500 PSI (172 bar)
Cutting Deck Motors Sauer Danfoss Gear Motor
Displacement (per revolution) 1.17 in
3
(19.2 cc)
Cutting Deck Circuit Relief Pressure
Center and Left Side 3000 PSI (207 bar)
Right Side 2000 PSI (137 bar)
Engine Cooling Fan Motor Casappa Gear Motor
Displacement (per revolution) 0.50 in
3
(8.3 cc)
Engine Cooling Fan Circuit Relief Pressure 3000 PSI (207 bar)
Hydraulic Filters Spin--on cartridge type
In--line Suction Strainer 100 mesh (in reservoir)
Hydraulic Reservoir 8 U.S. Gallons (30.3 Liters)
Hydraulic Oil See Operator’s Manual