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Power Steering Gear Box: Inspection

  1. Inspect cross shaft bearing surface for peeling or pitting. Check stepped wear of adjusting bolt shank. Inspect for damage to gear teeth on cross shaft and rack-piston.
  2. Inspect for uneven wear of circulator rolling surface on rack-piston. Check for damage to balls. Inspect for peeling or pitting on thrust needle roller bearing, and on bearing surface of thrust plate of worm unit.
  3. Check ball rolling surface of worm shaft for peeling and sealing surface of input shaft for damage. If thrust bearing or thrust plate is defective, replace both as a set.
  4. Inspect valve housing for damage to seal ring-to-housing contact surface. Inspect "O" ring sealing surface of seal housing, valve housing and side cover.
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