Exploded View: Disassembly
- 2. Remove cylinder lines (A) from the steering gearbox.
- 3. Drain the fluid from the cylinder fittings by slowly moving the steering rack back and forth.
- 4. Unbend the lock washers (A).
- 5. Hold the bracket (A) with one wrench, and unscrew both rack ends (B) with another wrench. Remove the lock washers.
- 6. Remove the stop washer (A), the 12 mm flange bolts (B), O-rings (C), and bracket (D) from the steering gearbox.
- 7. Remove the boot guard (A) by removing the 8 mm flange bolt (C) on the rack end.
- 8. Remove the boot band (D) and clip (E). Pull the boot B away from the end of the steering gearbox. Remove the rack end plug (F).
- 9. Loosen the lock nut (A), then remove the rack guide screw (B), spring (C), disc washer (D), and rack guide (E) from the steering gearbox.
- 10. Remove the snap ring (A) and backup ring (B) from the cylinder housing.
- 11. Remove the valve body unit (A) from the steering gearbox. Remove the O-ring (B) and discard it.
- 12. Remove the two boot bands (B) from boot A. Compress boot A by hand, and apply vinyl tape (C) so the boots stay collapsed and pulled back.
- 13. Hold the gearbox housing using a C-clamp (commercially available) (A) and the wooden blocks (B) as shown. Do not clamp the cylinder part of the housing or gearbox housing in the vise.
- 14. Install the special tool (A) on the lock screw (B), then loosen and remove the lock screw from inside of the gearbox housing (C).
- 15. Remove the special tool.
- 16. Pull on the cylinder to remove it from the gearbox housing. Remove boot A and the slider guide (B) from the cylinder.
- 17. Check the slider guide for damage and cracks. Use vernier calipers to measure the thickness of the slider guide. If the thickness is less than the service limit (A), replace the slider guide.
- 18. Remove and discard the stop ring (A) on the cylinder by expanding it with snap ring pliers. Remove and discard the lock screw (B).
- 19. Set the cylinder housing (A) in a press so the cylinder side points downward, then press the cylinder end seal (B) and steering rack (C) out of the cylinder. Hold the rack to keep it from falling when pressed clear.
- 20. Remove the cylinder end seal from the steering rack.
- 21. Insert the special tools into the cylinder.
Make sure the attachment (A) of the special tools is securely positioned on the bushing edges (B).
- 22. Place the cylinder in a press, then remove the cylinder end seal (C), backup ring (D), and bushing from the cylinder by pressing on the special tool end.NOTE: Note these items when pressing the cylinder end seal:
- Keep tool straight to avoid damaging the cylinder wall. Check the tool angle, and correct it if necessary, when removing the cylinder end seal.
- Use a press to remove the cylinder end seal. Do not try to remove the seal by striking the tool; striking the tool would break the cylinder end seal, and the seal would remain in the cylinder.
- 23. Carefully pry the piston seal ring (A) and O-ring (B) off the rack piston. Be careful not to damage the inside of the seal ring groove and piston edges when removing the seal ring.
- 24. Before removing the valve housing (A), apply vinyl tape (B) to the splines on the pinion shaft.
- 25. Separate the valve housing from the pinion shaft/valve using a press.
- 26. With your finger, check the inner wall of the valve housing where the seal ring slides. If there is a step in the wall, the housing is worn. Replace it.NOTE: There may be sliding marks from the seal ring on the wall of the valve housing. Replace the valve housing only if the wall is stepped.
- 27. Check for wear, burrs, and other damage to the edges of the grooves in the sleeve.NOTE: The pinion shaft and sleeve are a precision matched set. If either the pinion shaft or sleeve must be replaced, replace both parts as a set.
- 28. Remove the snap ring (A) and sleeve (B) from the pinion shaft.
- 29. Using a cutter, or an equivalent tool, cut and remove the four seal rings from the sleeve. Be careful not to damage the edges of the sleeve grooves and the outer surface when removing the seal rings.
- 30. Using a cutter or an equivalent tool, cut the valve seal ring (A) and the O-ring (B) at the groove (C) in the pinion shaft. Remove the valve seal ring and the O-ring. Be careful not to damage the edges of the pinion shaft groove and outer surface when removing the valve seal ring and the O-ring.
- 31. Remove the valve oil seal (A) and wave washer (B) from the pinion shaft.NOTE: Note these items during disassembly:
- Inspect the ball bearing (C) by rotating the outer race slowly. If there is any excessive play, replace the pinion shaft and sleeve as an assembly.
- The pinion shaft and sleeve are a precise fit; do not intermix old and new pinion shafts and sleeves.
- 32. Press the valve oil seal (A) and roller bearing (B) out of the valve housing using a hydraulic press and the special tool.