Power Steering Gear: Inspection
- On worm gear, check ball paths and bearings surfaces for wear and damage, replace if necessary.
- Piston/steering nut, remove seal rings, "O" rings, bearings and races, and worm gear nut. Inspect for wear or damage and replace as necessary.
- Check pitman shaft for wear or damage on bearing surfaces, check for bent or warped shaft and replace as necessary. Check steering case, cover, and bearing insert for wear or damage and replace as necessary.
- On control valve, check reaction piston in control valve for free movement. If necessary remove supporting pistons from control valve by removing lock rings (see illustration).
Courtesy of MERCEDES-BENZ USA