POWER ASSISTED SYSTEM (POWER STEERING) > Steering Gearbox [LHD Model]

ASSEMBLY

1. RACK HOUSING ASSEMBLY

1. Using a press, install the bushing to gearbox installation portion.

2. Insert the ST to rack.

ST    34199AG040 GUIDE

(1)

Seal ring

(2)

Rack

(3)

O-ring

3. Install the seal ring and O-ring to piston portion of rack.

4. Using the ST, form the seal ring properly.

ST1    34199AG080 FORMER PISTON
ST2    34199AG060 GUIDE G (26)

(1)

Seal ring

(2)

Rack

(3)

O-ring

5. Using the ST A and ST B, attach the oil seal to ST C.

ST    34199FE040 INSTALLER A, B, C

• INSTALLER A: 34199FE070

• INSTALLER B: 34199FE080

• INSTALLER C: 34199FE090

NOTE:

Face the oil seal in the direction as shown in the figure.

(A)

Oil seal

6. Insert the ST C with oil seal assembled from the gear side of rack. Remove the oil seal from ST C near piston, and then remove the ST C from rack.

(A)

Oil seal

(B)

Rack

(C)

Piston

7. Install the back-up washer from the gear side of rack.

(1)

Oil seal

(2)

Back-up washer

(3)

Rack

8. Check the threaded end of holder and gearbox cylinder end for burrs, damage, etc. Correct if faulty.

9. Apply a coat of grease to the grooves in rack, sliding surface of sleeve and sealing surface of piston. Then insert the rack into steering body from cylinder side.

10. Temporarily tighten the holder to gearbox cylinder.

11. Put a mark at the specified position measured from the end surface of ST, as shown in the figure.

Specified position:

XV (standard vehicle height model *1):

12.7 mm (0.50 in)

XV (high vehicle height model *1):

13.5 mm (0.53 in)

*1: For models, refer to the “ID” section.

ST    34199FE000 INSTALLER & REMOVER

(1)

12.7 mm (0.50 in) or 13.5 mm (0.53 in)

(2)

Place a mark

12. Set the ST to the end of rack.

ST    34199FE000 INSTALLER & REMOVER

13. Using a press, press-fit until the mark on the ST is aligned with the end surface of the holder.

(1)

Mark

(2)

Holder

14. Remove the ST and holder.

15. Insert the outer side oil seal into the rack using the same procedure as steps 5) and 6).

ST    34199FE040 INSTALLER A, B, C

• INSTALLER A: 34199FE070

• INSTALLER B: 34199FE080

• INSTALLER C: 34199FE090

16. Put the ST and pipe through the rack, and press-fit the outer side oil seal using a press.

ST    34199AG010 INSTALLER

(1)

Pipe

(2)

Outer side oil seal

17. Secure the gearbox in a vise using ST.

ST1    926200000 STAND
ST2    34199AG000 BOSS D

(1)

Clamp

18. Tighten the holder.

Tightening torque:

70 N·m (7.1 kgf-m, 51.6 ft-lb)

19. Using the ST, crimp so that the diameter of punch hole is 2 — 2.5 mm (0.08 — 0.10 in) and is aligned to the position of 2 mm (0.08 in) from gearbox cylinder end surface.

ST1    34099FA060 PUNCH HOLDER
ST2    34199FE020 BASE

(A)

Holder

(B)

2 mm (0.08 in)

20. Put a vinyl tape around the spline portion and apply genuine grease to the dust cover and install to valve assembly.

CAUTION:

Be sure to install the dust cover to groove of shaft.

(1)

Dust cover

(2)

Groove

21. Apply the genuine grease to the pinion gear and bearing of valve assembly.

22. Install new O-ring to valve assembly. Insert the valve assembly into place while facing the rack teeth toward pinion.

23. Tighten the bolts alternately to secure the valve assembly.

CAUTION:

Be sure to alternately tighten the bolts.

Tightening torque:

20 N·m (2.0 kgf-m, 14.8 ft-lb)

24. Temporarily tighten the tie-rod to the rack end, and then operate the rack from lock to lock for two or three times to make it fit in.

CAUTION:

Operating the rack from lock to lock without installing tie-rods may damage the oil seal. Always install the left and right tie-rods.

25. Apply liquid gasket to 1/3 or more of entire perimeter of adjusting screw thread.

Liquid gasket:

THREE BOND 1102 or THREE BOND 1215

26. Apply a coat of grease to the sliding surface of sleeve and seating surface of spring, and then insert the sleeve into steering body.

Charge the adjusting screw with grease, and then insert the spring into adjusting screw. Then install on the steering body.

(1)

Sleeve

(2)

Spring

(3)

Adjusting screw

27. Tighten the adjusting screw to the specified torque, then loosen it.

Tightening torque:

25 N·m (2.5 kgf-m, 18.4 ft-lb)

28. Tighten the adjusting screw to the specified torque, then loosen it within 20°.

Tightening torque:

3.9 N·m (0.4 kgf-m, 2.9 ft-lb)

29. Remove the tie-rod.

30. Adjust the turning resistance of gearbox so that it is within specification using adjusting screw.

31. Attach the lock nut into adjusting screw, and while holding the adjusting screw with wrench, tighten the lock nut using ST.

ST    926230000 SPANNER

Tightening torque (lock nut):

25 N·m (2.5 kgf-m, 18.4 ft-lb)

NOTE:

Hold the adjusting screw with a wrench to prevent it from turning while tightening lock nut.

32. Extend the rack approx. 40 mm (1.57 in) from steering body.

33. Install the tie-rod and new lock washer into rack.

Tightening torque:

90 N·m (9.2 kgf-m, 66.4 ft-lb)

(1)

Lock washer

(2)

Approx. 40 mm (1.57 in)

34. Bend the lock washer and crimp it.

CAUTION:

Be careful not to scratch the rack when crimping lock washer.

(1)

Lock washer

35. Apply a coat of grease to the tie-rod groove, and then install the boot to the housing.

CAUTION:

Right side boot has groove for identification, be sure to install the right and left of boot.

(1)

Right side boot

(2)

Groove for identification

NOTE:

Make sure that the boot is installed without unusual inflation or deflation.

36. Install a new boot band. Using band clamp pliers, crimp it so that the clearance of crimping portion becomes 2 mm (0.079 in) or less.

(A)

Boot band

(B)

2 mm (0.079 in) or less

37. Fix the boot end with small clip.

(1)

Clip

38. After installing, check that the boot end is installed to the groove of the tie-rod.

39. If the tie-rod end has been removed, screw in lock nut and tie-rod end to the screwed portion of tie-rod, and tighten the lock nut temporarily in a position as shown in the figure.

Installed tie-rod length L:

29 mm (1.14 in)

40. Inspect the gearbox as follows:

“A” Holding the tie-rod end, repeat lock to lock several times as quickly as possible.

“B” Holding the tie-rod end, turn it slowly at a radius several times as large as possible.

Finally, make sure that the boot is installed in the specified position without inflating.

41. Remove the gearbox from ST.

ST1    926200000 STAND
ST2    34199AG000 BOSS D

42. Install the four pipes on gearbox.

(1) Connect the pipes A and B to the four pipe joints of gearbox.

Tightening torque:

Refer to the component parts.

(2) Connect the feed pipe and return pipe to the gearbox.

Tightening torque:

Feed pipe: 37 N·m (3.8 kgf-m, 27.3 ft-lb)

Return pipe: 29 N·m (3.0 kgf-m, 21.4 ft-lb)

(1)

Feed pipe

(2)

Return pipe

2. CONTROL VALVE ASSEMBLY

Specified steering grease:

VALIANT GREASE M2

1. Clean all parts and tools before reassembling.

2. Apply a coat of specified power steering fluid to the inner wall of valve housing.

(1)

Apply fluid.

3. Apply grease to the oil seal.

4. Verify the direction of oil seal.

5. Position the oil seal and bearing to housing. Using the ST and a press, install the oil seal and bearing to the valve housing.

ST    34199AG090 INSTALLER & REMOVER

(1)

Special bearing

(2)

Bushing

6. Apply vinyl tape to the groove of pinion.

7. Install the wave washer and oil seal to pinion, and then remove the vinyl tape.

(1)

Oil seal

(2)

Vinyl tape

(3)

Wave washer

8. Attach the ST to pinion, and install the seal ring and O-ring.

ST    34199AG020 GUIDE

(1)

Seal ring and O-ring

9. Remove the ST GUIDE, and form the seal ring properly using ST FORMER.

ST    34199AG070 FORMER

(1)

Seal ring

10. Put vinyl tape around pinion shaft spline to protect oil seal from damage.

11. Install the valve to pinion, and install the snap ring.

(1)

Snap ring

(2)

Valve

12. Attach the pinion & valve assembly into the valve housing.

(1)

Valve housing

(2)

Pinion & valve ASSY

13. Using a press, push the outer race of bearing and press-fit the pinion & valve assembly into housing.

(1)

Pinion & valve ASSY

(2)

Bearing

(3)

Housing

14. Apply the specified grease to dust cover.

15. Install the dust cover on valve assembly.

CAUTION:

Be sure to install the dust cover to groove of shaft.

(1)

Dust cover

(2)

Groove

16. Apply the genuine grease to the pinion gear and bearing of valve assembly.

17. Install new O-ring to valve assembly.

(1)

O-ring

18. Insert the valve assembly into place while facing the rack teeth toward pinion.

19. Tighten the bolts alternately to secure the valve assembly.

CAUTION:

Be sure to alternately tighten the bolts.

Tightening torque:

20 N·m (2.0 kgf-m, 14.8 ft-lb)

20. Apply liquid gasket to 1/3 or more of entire perimeter of adjusting screw thread.

Liquid gasket:

THREE BOND 1102 or THREE BOND 1215

21. Apply a coat of grease to the sliding surface of sleeve and seating surface of spring, and then insert the sleeve into steering body.

Charge the adjusting screw with grease, and then insert the spring into adjusting screw. Then install on the steering body.

(1)

Sleeve

(2)

Spring

(3)

Adjusting screw

22. Tighten the adjusting screw to the specified torque, then loosen it.

Tightening torque:

25 N·m (2.5 kgf-m, 18.4 ft-lb)

23. Tighten the adjusting screw to the specified torque, then loosen it within 20°.

Tightening torque:

3.9 N·m (0.4 kgf-m, 2.9 ft-lb)

24. Adjust the turning resistance of gearbox so that it is within specification using adjusting screw.

25. Attach the lock nut into adjusting screw, and while holding the adjusting screw with wrench, tighten the lock nut using ST.

ST    926230000 SPANNER

Tightening torque (lock nut):

25 N·m (2.5 kgf-m, 18.4 ft-lb)

NOTE:

Hold the adjusting screw with a wrench to prevent it from turning while tightening lock nut.

26. Remove the gearbox from ST.

ST1    926200000 STAND
ST2    34199AG000 BOSS D

27. Install the four pipes on gearbox.

(1) Connect the pipes A and B to gearbox.

Tightening torque:

Refer to the component parts.

(2) Connect the feed pipe and return pipe to the gearbox.

Tightening torque:

Feed pipe: 37 N·m (3.8 kgf-m, 27.3 ft-lb)

Return pipe: 29 N·m (3.0 kgf-m, 21.4 ft-lb)

(1)

Feed pipe

(2)

Return pipe