Hitachi ZW180 Technical Manual page 87

During cooling operation (Normal rotation)
Fan Motor
During cleaning operation (Reverse rotation)
Fan Motor
OFF
ON
Fan Reverse
Rotation Switch
F
N
R
FNR Lever
FNR Switch
SYSTEM / Control System
Reverse Rotation
Spool
Reverse Rotation
Control Solenoid
Valve
Hydraulic Oil
Tank
Reverse Rotation Spool
Reverse Rotation Control Solenoid Valve
Hydraulic Oil
Tank
MC
Monitor
Unit
F
N
R
Engine
Engine
ECM
T2-1-45
Trans-
mission
T4GB-02-01-007
Trans-
mission
Parking Brake
Pressure Sensor
ON
OFF
Parking Brake
T4GC-02-01-021
Switch
Parking Brake
Solenoid Valve