Pump Device; Drive Unit - Hitachi ZW180 Technical Manual

PUMP DEVICE

DRIVE UNIT

20
1 - Main Pump
2 - Regulator
3 - Priority Valve
4 - Pump Delivery Pressure
Sensor
5 - Pilot Pump
GENERAL / Component Layout
6
7
8
13
14
15
16
17
18
19
6 - Steering Relief Valve
7 - Torque Converter Input
Speed Sensor
8 - Air Breather
9 - Charge Pump
10 - Vehicle Speed Sensor
3
5
12 11
11 - Transmission Output
Speed Sensor
12 - Transmission Middle Shaft
Sensor
13 - Forward Clutch Solenoid
Valve
14 - Reverse Clutch Solenoid
Valve
15 - 1st Speed Clutch Solenoid
Valve
T1-2-11
1
2
4
9
16 - 2nd Speed Clutch Solenoid
Valve
17 - 3rd Speed Clutch Solenoid
Valve
18 - 4th Speed Clutch Solenoid
Valve
19 - Transmission Control Valve
20 - Regulator Valve
T4GB-01-02-009
10
T4GD-01-02-004