TRW Automotive EV Series Power Steering Pump Service Manual
Description of the EV Series Power Steering Pump
The EV Series power steering pump is a balanced, positive displacement, sliding vane type, two line pump with an internal pilot operated flow control and relief valve. The components of this description are broken down and explained below:
The pumping element has two pumping pockets opposed 180° from each other which balance the internal forces
due to the pressure generated by the pumping action.
The pump will output a fixed volume for each revolution of the input shaft. The fixed volume is determined by the
internal contour of the cam ring.
Sliding Vane Type
This describes the type of pumping element. The EV pumping element consists of three components.
The rotor that holds the vanes and is driven by the engine with the pump input shaft.
The vanes that slide back and forth in slots in the rotor while following the internal contour of the cam ring as the rotor is being turned, thus a sliding vane.
The cam ring that contains the internal.
Section 1 General Information [ Introduction General Design & Operation Torque Chart Specification Numbers Part Number Breakdown Service Parts List Exploded View Oil Flow Illustration Approved Hydraulic Fluids ]
Section 2 Installation [ Installation Procedures Maintenance Tips ]
Section 3 Reseal & Repair [ Disassembly Preparation Disassembly Inspection Assembly Preparation/Assembly ]
Section 4 Reinstallation [ Reinstallation ]
Tags: trw automotive ev series power steering pump service manual
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