All models

All models

28. Remove 4 bolts securing IRD unit.
29. With assistance, release IRD unit from gearbox and remove from vehicle.
30. Remove and discard ’O’ ring from IRD unit.

Refit

All models

1. Clean mating face of IRD unit and gearbox.
2. Lubricate NEW ’O’ ring with lubricating fluid.
3. Fit ’O’ ring to IRD unit.
4. With assistance, fit IRD unit.
5. Fit bolts securing IRD unit to gearbox and tighten sufficiently only to pull mating faces of IRD and gearbox together at this stage.
6. Fit IRD support bracket and tighten bolts sufficiently only to pull mating faces together.

CAUTION: Do not tighten IRD retaining bolts fully until all mating faces of IRD, gearbox and IRD support bracket are touching.

7. Final tighten bolts securing IRD to gearbox to 80 Nm.

’L’ series

8. Tighten bolts securing IRD support bracket to 50 Nm.
9. Fit stiffener bracket to gearbox adaptor plate and sump. Tighten gearbox bolt to 80 Nm. Tighten sump bolt to 25 Nm.
10. Fit tie bar bracket and tighten bolts to 45 Nm.
11. Fit lower tie bar and tighten bolts to 80 Nm.

’K’ series

12. Fit lower tie bar and bracket assembly.
13. Tighten bolts securing tie bar bracket to sump to 90 Nm.
14. Fit bolt securing tie bar to sub frame and tighten to 80 Nm.
15. Tighten bolt securing tie bar to bracket to 80 Nm.

All models

16. Connect breather hose to IRD.
17. Connect coolant hoses to IRD unit and secure with clips.
18. Clean propeller shaft and drive flange mating faces.
19. Fit propeller shaft to drive flange, align marks and tighten bolts to 40 Nm.