Hitachi ZW180 Technical Manual page 205

5
Pump Torque
Control Pressure
ST
Control Pressure
5
Pump Torque
Control Pressure
ST
COMPONENT OPERATION / Pump Device
Pump
Control
To Hydraulic
Pressure Pi1 Oil Tank
Own Pump
Pressure Pd1
10
Pump
To Hydraulic
Pi1 Oil Tank
Own Pump
Pressure Pd1
10
Primary Pilot
Pressure Pg
11
Primary Pilot
Pressure Pg
11
T3-1-17
6 7
Pump
Control Pressure
Pi2
8 9
13
6 7
Pump
Control Pressure
Pi2
8 9
13
12
T4GB-03-01-016
12
T4GB-03-01-017