Hitachi ZW180 Technical Manual page 30

HYDRAULIC FAN PUMP
Model........................................................ SGP1A25D2H1
Type.......................................................... Fixed Displacement Type Gear Pump
Maximum Flow (Theoretical Value) .......... 55 L/min (14.51 US gpm)
HYDRAULIC FAN MOTOR
Relief Set Pressure .................................. 20.6 MPa (210 kgf/cm
SOLENOID VALVE
Function.................................................... Fan Motor Reverse Control
GENERAL / Component Specifications
Fan Motor Speed Control
2
) @ 5 L/min (1.32 US gpm)
T1-3-6