Hitachi ZW180 Technical Manual page 85

At oil temperature or coolant temperature above the set temperature (Uncontrolled speed operation)
Fan Motor
Flow Rate
Control Valve
Flow Rate Control
Solenoid Valve
Fresh Air
Temperature
Sensor
At oil temperature or coolant temperature below the set temperature (Controlled speed operation)
Fan Motor
Flow Rate
Control Valve
Flow Rate Control
Solenoid Valve
Fresh Air
Temperature
Sensor
SYSTEM / Control System
Hydraulic Oil Tank
MC
Air
Monitor
Conditioner
Control Unit
Panel
Hydraulic Oil Tank
MC
Air
Conditioner Monitor
Control
Unit
Panel
Hydraulic Oil Temperature Sensor
Fan Pump
ECM
Engine
Hydraulic Oil Temperature Sensor
Fan Pump
ECM
Engine
T2-1-43
Engine Coolant Tem-
perature Sensor
Trans-
mission
Torque Converter
Oil Temperature Sensor
Engine Coolant
Temperature Sensor
Trans-
mission
Torque Converter
Oil Temperature Sensor
T4GC-02-01-019
T4GC-02-01-020