Power Steering Gear Box: Inspection

Rack
1. Check for rack tooth face damage or wear
2. Check for oil seal contact surface damage or wear
3. Check for bending or twisting of rack
4. Check for oil seal ring damage or wear
5. Check for oil seal damage or wear
  
  Fig 1: Inspecting Rack Gear For Damage Or Wear
  Courtesy of HYUNDAI MOTOR CO.
Pinion valve
1. Check for pinion gear tooth face damage or wear
2. Check for oil seal contact surface damage
3. Check for seal ring damage or wear
4. Check for oil seal damage or wear
  
  Fig 2: Inspecting Pinion Valve For Damage Or Wear
  Courtesy of HYUNDAI MOTOR CO.
Bearing
1. Check for seizure or abnormal noise during bearing rotation
2. Check for excessive play
3. Check for missing needle bearing rollers
Others
1. Check for damage of the gear housing cylinder bore
2. Check for boot damage, cracking or ageing