966F Series II Wheel Loader Power Train Caterpillar

Disassembly Procedure

Start By:

1. Remove the fixed axle. Refer to Disassembly and Assembly, "Fixed Axle (Front) - Remove and Install".

2. Remove the oscillating axle. Refer to Disassembly and Assembly, "Oscillating Axle (Rear) - Remove and Install".

Note: The axle housing assemblies that are used in the front fixed axle and in the rear oscillating axle are similar. Therefore, both axle housing assemblies can be removed in the same manner.

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Illustration 1	g00301040
Typical Example

1. Install the axle on Tooling (B) in a vertical position, as shown.

   Note: Carefully remove the axle housing assembly. Part of the wear gauge pin will remain in the axle housing assembly. The pin will remain in the axle housing assembly. The spring and the piston will remain in the differential housing.

2. Fasten Tooling (A) and a hoist to the rim of the axle shaft, as shown. Remove bolts (1) that secure axle housing assembly (2) to the differential housing. Carefully remove the axle housing assembly. The weight of axle housing assembly (2) is 295 kg (650 lb).
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   Illustration 2	g00303123
   Typical Example

3. Remove the bottom half of the axle from Tooling (B). Install axle housing assembly (2) on Tooling (B), as shown.
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   Illustration 3	g00303124
   Typical Example

   Note: To completely remove retaining ring (3), planetary carrier assembly (5) must be disassembled.

4. Use Tooling (C) to remove retaining ring (3) from axle shaft (4).
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   Illustration 4	g00303169
   Typical Example

5. Install Tooling (D) and suitable lifting slings to planetary carrier assembly (5), as shown.

6. Use a hoist to remove the planetary carrier assembly from the axle housing assembly. The weight of the planetary carrier assembly is 80 kg (175 lb).
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   Illustration 5	g00303170
   Typical Example

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   Illustration 6	g00505898
   Typical Example

7. Use the following steps to disassemble planetary carrier assembly (5):

   1. Use a hammer and a punch to push spring pin (7) all the way into shaft (6).

   2. Remove shaft (6), thrust washers (8) and planetary gear (9) from the carrier.

   3. Remove bearing (10) from planetary gear (9).

   4. Use a hammer and a punch to remove spring pin (7) from shaft (6).

   5. Repeat Steps 7.a through 7.d for the remaining two planetary gears.

   6. Remove retaining ring (3) from the carrier.
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   Illustration 7	g00303172
   Typical Example

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   Illustration 8	g00303173
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8. Install two bolts (11) of a suitable size in the rim of the axle flange. This will prevent the axle shaft from turning when bearing nut (12) is removed.
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   Illustration 9	g00303174
   Typical Example

9. Use Tooling (E) to remove bearing nut (12) from the axle shaft.
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   Illustration 10	g00303176
   Typical Example

10. Install Tooling (A) and suitable lifting slings to the axle housing, as shown. Put slight lifting tension on the axle housing.
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    Illustration 11	g00303177
    Typical Example

    Note: The bearing cone which is located under bearing nut (12) will be removed at the same time as the axle housing.

11. Fasten Tooling (F) to the axle housing, as shown. Use the center stud to push the axle shaft and the bearing cone from the axle housing. Make sure that upward pressure is constantly applied.

12. Use the hoist to remove the axle housing and the inner bearing cone from the axle shaft. The weight of the axle housing is 105 kg (231 lb).

13. Remove the inner bearing cone from the axle housing.
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    Illustration 12	g00303179
    Typical Example

14. Remove inner bearing cup (13) from the axle housing.

    Note: Planetary ring gear (15) will be destroyed during removal.

15. Remove ring gear (15) from the axle housing. Use a torch to cut the ring gear in two places that are directly across from each other. Cut the ring gear at the position of the locating dowels. For an alternate method, make three welds that are equally spaced around the circumference of the ring gear. This will cause the ring gear to shrink.

16. Remove dowels (14).
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    Illustration 13	g00303180
    Typical Example

17. Remove Duo-Cone seal (16) and bearing cup (17) from the opposite end of the axle housing.
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    Illustration 14	g00303181
    Typical Example

18. Remove Duo-Cone seal (19) and bearing cone (18) from the axle shaft.