D250E Series II and D300E Series II Articulated Trucks Power Train Caterpillar

Removal Procedure

Start By:

1. Remove the Tire and Rim. See Disassembly and Assembly, "Tire and Rim - Remove" .
2. Remove the brake caliper assembly. See Disassembly and Assembly, "Service Brakes - Remove" .
3. Remove the final drive planet carriers and the ring gears. See Disassembly and Assembly, "Final Drive - Remove" .

Illustration 1	g00519257

Note: In order to avoid damaging the seals, install bolts (1) after the brake calipers are removed. This will secure the wheel assembly to the spindle. If the bolts are too long, the Duo-Cone seals can be damaged.

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Illustration 2	g00519261

1. Remove four bolts (3) and lock plate (4) from wheel assembly (2) .

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Illustration 3	g00519263

2. Use Tooling (A) in order to attach a suitable hoist to wheel assembly (2) .

3. Use Tooling (B) in order to remove nut (5) and hub assembly (4) from the spindle.

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Illustration 4	g00519265

4. Use four 3/8" - 16 NC forcing screws (7) in order to loosen the bearing from hub assembly (4) . Remove bearing (8) from hub assembly (4) .

5. Use Tooling (C) and a press in order to remove bushing (6) from the hub assembly.

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Illustration 5	g00519266

6. Remove wheel assembly (2) from the spindle. The weight of the wheel assembly is 84 kg (185 lb) .

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Illustration 6	g00519267

7. Remove the following components from the wheel assembly: the outer half of Duo-Cone seal (9), bolts (11) and the washers and brake disc (10)

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Illustration 7	g00519268

8. Use Tooling (D) without the adapter in order to remove the inner bearing from the wheel assembly.

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Illustration 8	g00519270

9. Use Tooling (D) with the adapter in order to remove the outer bearing cup from the wheel assembly.

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Illustration 9	g00519271

10. Remove the inner half of Duo-Cone seal (13) and bearing cone (12) from the spindle.