Assembly
TOOL REQUIRED- 07NAG-SR30900 Piston Seal Ring
- 07974-SA50200 Sleeve Seal Ring Sizing Tool
- 07749-0010000 Driver
- 07746-0010100 Attachment, 32 x 35 mm
- 07GAG-SD40100 Piston Seal Ring Guide
- 07GAG-SD40200 Piston Seal Ring Sizing Tool
NOTE:
- Clean the disassembled parts with a solvent, and dry them with compressed air. Do not dip the rubber parts in a solvent.
- Always replace the Wrings and rubber seals with new ones before assembly.
- Apply the recommended power steering fluid to the parts indicated in the assembly procedures.
- Do not allow dust, dirt, or other foreign materials to enter the power steering system.
- Use the appropriate special tools where necessary.
1. Apply vinyl tape to the stepped portion of the pinion shaft, and coat the surface of the vinyl tape with the power steering fluid.
2. Install the backup ring with its tapered side as shown below.
3. Coat the inside surface of the new valve oil seal with power steering fluid.
4. Slide the valve oil seal over the pinion shaft, being careful not to damage the sealing lip.
CAUTION: Install the valve oil seal with its grooved side facing opposite the hearing.
5. Apply vinyl tape to the splines and stepped portion of the shaft, and coat the surface of the vinyl tape with the power steering fluid.
6. Fit the new O-ring in the groove of the pinion shaft. Then slide the new valve seal ring over the shaft and the groove in on the pinion shaft.
7. Remove the vinyl tape from the pinion shaft.
8. Apply power steering fluid to the surface of the valve seal ring that was installed on the pinion shaft.
9. Apply power steering fluid to the inside of the special tool. Set the larger diameter end of the special tool over the valve seal ring.
10. Move the special tool up and down several times to make the valve seal ring fit in the pinion shaft.
11. Remove the special tool.
12. Turn the special tool over, and set the smaller diameter end of the special tool over the valve seal ring. Move the special tool up and down several times to make the valve seal ring fit snugly in the pinion shaft.
13. Apply power steering fluid to the surface of the special tool. Set the new seal rings over the special tool from the smaller diameter end of the tool, and expand the seal rings. Do two rings at a time from each end of the sleeve.
NOTE:
- Do not over-expand the seal ring. Install the resin seal rings with care so as not to damage them. After installation, be sure to contract the seal rings using the special tool (sizing tool).
- There are two types of sleeve seal rings: black and brown. Do not mix the different types of sleeve seal rings as they are not compatible.
14. Set the special tool in the grooves in the sleeve, and set each ring in each groove securely.
NOTE: After installation, compress the seal rings with your fingers temporarily.
15. Apply power steering fluid to the seal rings on the sleeve, and to the entire inside surface of the special tool.
16. Insert the sleeve into the special tool slowly.
17. Move the sleeve each direction several times to make the seal rings snugly fit in the sleeve.
NOTE: Be sure that the seal rings are not turned up.
18. Apply power steering fluid to the surface of the pinion shaft. Assemble the sleeve over the pinion shaft by aligning the locating pin on the inside of the sleeve with the cutout in the shaft. Then install the new circlip securely in the pinion shaft groove.
NOTE:
- Be careful not to damage the valve seal ring when inserting the sleeve.
- Install the circlip with its radiused side toward the sleeve.
19. Apply power steering fluid to the seal ring lip of the valve oil seal, then install the seal in the valve housing using a hydraulic press and special tools as shown.
CAUTION: Install the valve oil seal with its grooved side facing the tool.
20. Press the new bearing into the valve housing using a hydraulic press and special tool as shown.
NOTE: Place the roller bearing on the valve housing with the stamped letter facing up towards the valve side.
21. Apply vinyl tape to the pinion shaft, then coat the vinyl tape with power steering fluid.
22. Insert the pinion shaft into the valve housing.
CAUTION: Be careful not to damage the valve seal rings.
23. Remove the vinyl tape from the pinion shaft.
24. Press the pinion shaft/sleeve using a hydraulic press as shown.
NOTE: Check that the pinion shaft/sleeve turns smoothly by turning the pinion shaft.