Front Steering Knuckle: Service and Repair

SWIVEL HUB

Remove

1. Remove front hub and drive shaft assembly, refer to Transmission and Drivetrain/Drive Axles, Bearings and Joints/Wheel Hub/Service and Repair Service and Repair






2. Remove 2 nuts securing track rod and drag link to swivel hub.
3. Break taper joints, move track rod and drag link aside.
4. Remove 2 nuts securing joints to swivel hub.
5. Break taper joints using LRT-54-009 and remove swivel hub. If joint pin turns in taper, use a 6mm Allen key to restrain.






6. Remove taper collet from swivel hub.
7. Clean taper registers in swivel hub and collet.
8. Fit taper collet into swivel, until a 4 mm (0.16 in.) gap exists between the shoulder of the collet and the swivel.
9. Fit swivel hub to axle. Fit upper joint nut. Holding joint with Allen key, tighten nut to 110 Nm (81 ft lbs).
10. Clean seal register in axle case.






11. Turn clamp screw of LRT-54-006/1 fully anti-clockwise. Ensure that clamp toggle rotates freely. Locate tool into axle casing with 'TOP' mark upwards.
12. Ensure tool is located correctly in seal register, tighten clamp screw. Using a copper mallet, tap end of clamp screw to ensure correct seating. Tighten clamp screw if necessary.






13. Fit and tighten lower swivel joint nut until the taper is seated in the collet, but the collet can still turn. Adjust the height of the hub using taper collet until LRT-54-006/2 is a sliding fit in hub.
14. Remove LRT-54-006/2. Tighten collet 1.25 turns to allow for further seating into taper when tightening lower swivel joint nut.
15. Tighten lower swivel joint nut. Tighten to 135 Nm (1OO ft lbs).
16. Check adjustment of swivel hub using LRT-54-006/2.
17. If swivel hub is out of adjustment, loosen lower swivel joint nut, break taper. Reseat taper into collet, turn collet as required. If swivel hub is high, tighten collet, if it is low, loosen collet. Retorque lower swivel nut. Recheck adjustment using tool LRT-54-00612.
18. Loosen clamp screw, remove LRT-54-006/1 from axle casing.
19. Clean drag link and track rod end mating faces, connect to swivel hub.
20. Tighten track rod and drag link nuts to 80 Nm (59 ft lbs).
21. Fit front hub and drive shaft assembly, refer to Transmission and Drivetrain/Drive Axles, Bearings and Joints/Wheel Hub/Service and Repair Service and Repair