Tandem Pump: Notes
INDEX REFERENCE CHART
| Index | Explanation |
|---|---|
| 1 | Radial piston pump (ARS) |
| 2 | Intake restrictor valve |
| 3 | Electronic volumetric flow control (EVV) valve |
| 4 | Vane pump (power steering) |
The hydraulic pumps fitted in this model series were based on a modular design principle. Depending on the engine and equipment specification, a suitably dimensioned hydraulic pump is flange-mounted to the engine in the same installation space.
Decisive equipment features for these tandem pumps:
- Basic steering
- Integrated Active Steering (IAL)
- CO2 reduction measures
- Dynamic Drive (ARS)
- Dynamic Drive (ARS) and Integrated Active Steering (IAL)
- Intake restrictor valve
The hydraulic pump driven by the engine's poly-V belt is, on vehicles with Dynamic Drive, invariably a tandem pump, which consists of a radial-piston pump section for ARS and a vane pump section for the power steering.