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Home >> Mazda >> 1977 >> Cosmo Standard Trans >> Repair and Diagnosis >> Steering >> Manual Steering >> Power Steering - Power-Assisted Recirculating Ball >> General Service >> Hydraulic System Bleeding

Hydraulic System Bleeding

  1. Fill the reservoir to the "FULL" mark and raise the front end of vehicle. To avoid foaming of the fluid during filling and testing, fabricate a stick, using the dimensions shown in Fig 1 . 
  2. Install the fabricated stick in reservoir with short end down into fluid return port on bottom of reservoir. Raise and support front of vehicle. With stick in position, turn steering wheel lock-to-lock at least ten times. Check fluid level and add if necessary.
    NOTE: Do not let the reservoir run dry.
    Fig 1: Fabricated Tool
    G09357449Courtesy of MAZDA MOTORS CORP.
  3. Attach a tube to the bleeder screw on the power steering gear. Insert open end of tube into a container partially filled with fluid.
  4. Start engine and turn steering wheel to left lock position and open bleeder screw. Run engine until air bubbles cease to appear. Repeat operation with the steering wheel in the right lock position.
    NOTE: Do not let the reservoir run dry.
  5. Close the bleeder screw and fill reservoir to between the "FULL" and "LOW" level marks.
    NOTE: Do not overfill.