Exploded View: Disassembly
- Remove the steering gearbox (see STEERING GEARBOX REMOVAL AND INSTALLATION ).
- Remove both tie-rod ends from the rack ends.
- Drill a 4.0 mm (0.158 in) diameter hole about 2.5-3.0 mm (0.098-0.118 in) in depth in the staked points (A) on the end plug (B) and the gearbox housing (C).
- Remove the end plug (A) from the gearbox housing, then remove the nut (B) from the pinion shaft end.
- Remove the boot bands (A) and tie-rod clips (B). Pull the boot away from the ends of the steering gearbox. Repeat this step for the other side.
- Hold the gearbox housing using a C-clamp (A) and wooden blocks (B) to a work bench as shown. Do not clamp the cylinder part of the gearbox housing in a vise.
- Unbend the lock washer (A).
- Hold the flat surface sections (A) of the steering rack (B) with one wrench, and unscrew both rack ends (C) with another wrench. Be careful not to damage the rack surface with the wrench.
- Remove the lock washer (D). Repeat steps 7 thru 9 for the other side.
- Loosen the locknut (A), then remove the rack guide screw (B).
- Remove the spring (C) and the rack guide (D) from the gearbox housing.
- Remove the cylinder lines (A) from the steering gearbox housing (B).NOTE: Use a second wrench when loosening the cylinder lines to avoid damage to the fittings on the steering gearbox.
- Remove the connector A, the connector B, and the O-rings (C) from the steering gearbox.
- Drain the fluid from the cylinder fittings by slowly moving the steering rack back and forth.
- Remove the flange bolts, the valve body unit (A), and gasket (B) from the gearbox housing. Check that the valve turns smoothly by turning the pinion shaft. If any play or roughness is felt, replace the valve body unit with a new part.
- Wrap the vinyl tape (A) over the splines on the pinion shaft, then separate the valve housing (B) from the pinion shaft/sleeve (C) and valve oil seal (D).
- Turn the rack stop (A) counterclockwise until the end (B) of the circlip (C) sticks out from the hole (D) in the cylinder housing. Then turn it clockwise to remove the circlip.
- Remove the rack stop (A), rack bushing (B), and steering rack (C) from the steering gearbox.
- Remove the O-ring (A) and cylinder end seal (B) from the rack bushing (C).
- 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.
- Insert the driver handle (A) and driver head (B), and carefully place them on the cylinder end seal (C) as shown. Make sure that the driver head is securely positioned on the cylinder end seal.
- Install the bearing separator (D) on the gearbox housing. Set the steering gearbox in a press so the gearbox housing points upward, then push out the cylinder end seal by pressing on the end of the driver handle and driver head.
- Remove the steering gearbox from the press, and set a driver extension (A) on the driver handle (B). Place the steering gearbox in a press, then remove the cylinder end seal (C) from the gearbox housing by pressing on the end of the extension.
Note these items when pressing the cylinder end seal:
- Keep the 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 gearbox housing.