D6R2 Track-Type Tractor Power Train Caterpillar

Assembly Procedure

1. Apply clean oil to all the parts during assembly.

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Illustration 1	g00841209

2. Use Tooling (B) to install lip seal (17) in spindle (13) to a minimum depth of 9.65 mm (0.400 inch). Do not apply excessive force to lip seal (17) during installation in order to avoid damaging the seal. Put clean oil on the lip of the seal.

3. Raise the temperature of bearing cone (18) to a maximum temperature of 135 °C (275 °F). Install bearing cone (18) on spindle (13) .

Note: Before the installation of the Duo-Cone seal, refer to Disassembly and Assembly, "Duo-Cone Conventional Seals - Install" for the correct procedure.

4. Use Tooling (E) to install the Duo-Cone seal on spindle (13) .

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Illustration 2	g00841210

5. Lower the temperature of bearing cups (14) and (16). Install bearing cups (14) and (16) in hub (12) .

6. Use Tooling (E) to install the Duo-Cone seal in hub (12) .

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Illustration 3	g01195917

7. Attach Tooling (D) to hub (12). Attach a suitable lifting device to Tooling (D). Carefully position hub (12) on spindle (13) .

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Illustration 4	g00841212

8. Raise the temperature of bearing cone (11). Install bearing cone (11) on spindle (13).

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Illustration 5	g03879977

9. Using two people, install hub (9) onto spindle (13). Place five washers onto hub (9) next to but not touching spindle (13) .

10. Install retainer (7) and bolts (6). While hub (12) is slowly rotated, tighten bolts (6) evenly to a torque of 135 ± 15 N·m (100 ± 11 lb ft).

11. Remove bolts (6), remove retainer (7), remove the washers, and use two people to remove hub (9) .

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Illustration 6	g01195915

12. Attach a suitable lifting device to hub (9) and position hub (9) in ring gear (8). Install retaining ring (10) .

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Illustration 7	g01195913

13. Turn over hub (9) and ring gear (8). Attach a suitable lifting device to hub (9) and the ring gear (8) into position in hub (12).

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Illustration 8	g03879627

14. Install retainer (7) and bolts (6). While hub (12) is slowly rotated, tighten bolts (6) evenly to a torque of 135 ± 15 N·m (100 ± 11 lb ft). After tightening bolts (6), there must be a gap of 0.08 ± 0.05 mm (0.003 ± 0.002 inch) between retainer (7) and hub (9). Also, retainer (7) must contact the end of spindle (13) (not shown). If the required gap cannot be reached or retainer (7) does not contact spindle (13) (not shown) then repeat Step 9 through Step 11.

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Illustration 9	g00841091

15. Lower the temperature of the bearing cups. Install the bearing cups in three planetary gears (4) .

16. Install bearing cones (5) .

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Illustration 10	g03745454

17. Position planetary carrier (3) in a suitable press. Position planetary gear (4) in planetary carrier (3) .

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NOTICE
The shaft must be correctly installed. If the shaft is incorrectly installed, the bearing preload will be incorrect. This will result in component damage.

18. Lower the temperature of the shafts. Use Tooling (B) and a suitable press to install the shafts in planetary carrier (3).

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Illustration 11	g03881683

19. After the installation, measure distance (X) between planetary carrier (3) and the planetary shaft. The planetary shaft should extend 0.08 ± 0.05 mm (0.003 ± 0.002 inch) past the surface of the carrier to provide the correct bearing preload. The gear must rotate by hand after installation. If the gear does not rotate, the problem must be corrected. Repeat this procedure for all three shafts. Repeat this procedure for all three shafts.

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Illustration 12	g03881705

20. Install the O-ring seals and retainers (2). Tighten the bolts to a torque of 240 ± 40 N·m (177 ± 30 lb ft). The gears must rotate by hand after installation. If the gear does not rotate, the problem can be corrected by driving retainers (2) toward planetary carrier (3) .

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Illustration 13	g03881724

21. Attach Tooling (A) and a suitable lifting device. Install the two O-ring seals onto planetary carrier (3). Align the drain hole in the planetary carrier with the drain hole in the hub.

22. Position the planetary carrier in the hub.

23. Install bolts (1) that hold planetary carrier (3) to the hub. Tighten bolts (1) to a torque of 430 ± 60 N·m (317 ± 44 lb ft). Remove Tooling (A) .

End By: Install the final drives.