3508, 3512 and 3516 Generator Set Engines Caterpillar

Disassembly Procedure

Start By:

1. Remove the accessory drive (front).

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Illustration 1	g00906726

1. Remove O-ring seals (2) and (3) from rear adapter assembly (1).
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   Illustration 2	g01255143

2. Remove seal (4) from rear adapter assembly (1).

3. Use Tooling (A) and a suitable press to remove bearing (5) from rear adapter assembly (1).
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   Illustration 3	g01255146

4. Remove bolts (7) and gear (8) from shaft (6).
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   Illustration 4	g01255149

5. Remove the bolts and retaining washer (10).

   Note: Later models have two retaining washers.

6. Remove shaft (6) from front adapter assembly (9).
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   Illustration 5	g01255150

7. Remove O-ring seals (12) and (13) from front adapter assembly (9).

8. Use Tooling (A) and a suitable press to remove bearing (11) from front adapter assembly (9).