POWER STEERING SYSTEM DETAILS


  1. CONSTRUCTION


    1. Vane Pump Assembly


      1. A compact and lightweight vane pump, which uses die-cast aluminum as the material for its housing, is used.

      2. A belt drive type vane pump is used on models with the 1TR-FE, 2TR-FE, 1GR-FE or 5L-E engine, and a gear drive type vane pump is used on models with the 1KD-FTV or 2KD-FTV engine.

      3. Models with the 1TR-FE or 2TR-FE engine use a type of vane pump with a built-in reservoir tank.

        A01EZLUE01
        Text in Illustration (Models with 1TR-FE or 2TR-FE Engine:)
        *1 Vane Pump Oil Reservoir Sub-assembly *2 Shaft with Pulley
        *3 Power Steering Oil Pressure Switch *4 Vane Pump Housing
        A01EZGRE01
        Text in Illustration (Models with 1GR-FE Engine:)
        *1 Vane Pump Housing *2 Shaft with Pulley
        *3 Power Steering Oil Pressure Switch - -
        A01EZHNE01
        Text in Illustration (Models with 1KD-FTV or 2KD-FTV Engine:)
        *1 Vane Pump Gear *2 Vane Pump Housing
        A01EZ8NE01
        Text in Illustration (Models with 5L-E Engine:)
        *1 Vane Pump Pulley *2 Vane Pump Housing

    2. Power Steering Link Assembly


      1. A low friction rack shaft is used in order to achieve a steering operation feeling at the center position.

      2. Steering rack bushes are used to mount the steering gear on the vehicle. Accordingly, the rigidity in the left and right directions has been optimized and the vertical rigidity and the rigidity in the forward and rearward directions have been enhanced to optimize compliance steering and eliminate vibration from the ground.

      3. On the 2WD PreRunner and 4WD models, a check valve is provided at the high pressure port in order to reduce the extent of shocks applied from the road surface.

        A01EZLME01
        Text in Illustration (2WD LHD Models)
        *1 Pinion Gear *2 Rack Shaft
        *3 Steering Rack Bush - -
        A01EZPJE01
        Text in Illustration (2WD PreRunner LHD and 4WD LHD Models)
        *1 Check Valve *2 Pinion Gear
        *3 Rack Shaft *4 Steering Rack Bush