HYDRAULICS
8A-3
SPECIFICATIONS
Hydraulic System
Capacity..............................6.8 US gallons (25.7 liters)
Hydraulic fluid (standard)...................Jacobsen 10W30
............................................................... hydraulic fluid
Hydraulic fluid – biodegradable.............GreensCare 68
................................................................ hydraulic fluid
Hydrostatic Traction Pump
Displacement, traction circuit.1.35 cu. in/rev (22.13 cc)
Traction circuit flow @ 3150 rpm... 18.4 gpm (69.6 lpm)
Traction circuit maximum allowable leakage
@ 2500 psi (172 Bar)........................ 1.5 gpm (5.6 lpm)
Traction circuit relief valves..............3500 psi (241 Bar)
Displacement, charge pump . 0.425 cu. in/rev (6.97 cc)
Charge pump flow @ 3150 rpm...... 5.7 gpm (21.5 lpm)
Charge circuit maximum allowable leakage
@ 750 psi (52 Bar)............................... 1 gpm (3.8 lpm)
Steering and lift (implement) circuit relief
valve...................................................1000 psi (69 Bar)
Traction pump charge circuit relief
valve......................................................60 psi (4.1 Bar)
Front Wheel Motor
Displacement ............................11.9 cu. in/rev (195 cc)
Maximum allowable leakage
@ 2500 psi (172 Bar)........................ 1.5 gpm (5.6 lpm)
Rear Wheel Motor
Displacement ..............................8.6 cu. in/rev (141 cc)
Maximum allowable leakage
@ 2500 psi (172 Bar)........................ 1.5 gpm (5.6 lpm)
Rear Motor Check Valves
Maximum allowable leakage
@ 2500 psi (172 Bar)........................ 0.5 gpm (1.9 lpm)
Hot Oil Shuttle
Maximum allowable leakage
@ 2500 psi (172 Bar)........................ 0.5 gpm (1.9 lpm)
Implement Pump (Deck Drive)
Displacement ..........................1.01 cu. in/rev. (16.6 cc)
Flow @ 3150 rpm.......................... 13.7 gpm (51.8 lpm)
Maximum allowable leakage
@ 2500 psi (172 Bar)........................ 1.5 gpm (5.6 lpm)
Deck Motor
Displacement ...........................1.27 cu. in/rev (20.8 cc)
Maximum allowable leakage
@ 2500 psi (172 Bar)........................... 1 gpm (3.8 lpm)
Deck Valve
Circuit Relief Valve...........................3200 psi (220 Bar)
Blade Brake Relief Valve...................300 psi (20.6 Bar)
Maximum allowable leakage
@ 2500 psi (172 Bar)........................... 1 gpm (3.8 lpm)
Steering Valve
Displacement ..............................6.6 cu. in/rev (108 cc)
Maximum allowable leakage............1 wheel rev in less
....................... than 30 sec. with blocked cylinder ports
Steering Cylinder
Rod................................................... 0.625 in (5.9 mm)
Bore..................................................... 1.5 in (38.1 mm)
Stroke...................................................... 8 in (203 mm)
Lift Valve
Maximum port leakage
@ 1100 psi ..................................1 cu. in/min. (16.4 cc)
Lift Cylinder
Rod......................................................... 1 in (25.4 mm)
Bore........................................................ 2 in (50.8 mm)
Stroke...................................................... 5 in (127 mm)
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