Hitachi ZW180 Technical Manual page 313

Side View of Transmission
4
5
6
7
8
9
10
11
1 - Converter Inlet Pressure
Port
2 - Regulator Valve
3 - Regulator Pressure Port
COMPONENT OPERATION / Drive Unit
3
12
4 - Forward Clutch Pressure
Port
5 - Reverse Clutch Pressure
Port
6 - 1st Speed Clutch Pressure
Port
2 1
7 - 2nd Speed Clutch Pressure
Port
8 - 3rd Speed Clutch Pressure
Port
9 - 4th Speed Clutch Pressure
Port
T3-9-7
T4GD-03-09-004
10 - Parking Brake Pressure
Port
11 - Parking Brake Release
Pressure Inlet
12 - Strainer