Hitachi ZW180 Technical Manual page 242

COMPONENT OPERATION / Hydraulic Fan Motor
FAN PUMP
The fan pump is a gear pump and always supplies
pressure oil to the fan motor when the engine is
running.
The fan pump is installed to the engine.
1
1 - Drive Gear
2 - Oil Seal
3 - Bushing
2 3
6 7
4 - Body
5 - Cover
6 - Front Cover
4
8
7 - Gasket
8 - Driven Gear
9 - Side Plate
T3-3-10
5
9 10
10 - Gasket
T4GB-03-03-008