3508, 3512 and 3516 Generator Set Engines Caterpillar

Assembly Procedure

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Illustration 1	g01255150

1. Align the oil hole in the bearing and the oil hole in front adapter assembly (9). Use Tooling (A) and a suitable press to install bearing (11) into front adapter assembly (9). The bore of the bearing must be 75.000 ± 0.055 mm (2.9528 ± 0.0022 inch) after installation.

2. Install O-ring seals (12) and (13) into front adapter assembly (9).
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   Illustration 2	g01255149

3. Place clean engine oil on the bearing and install shaft (6) in front adapter assembly (9).

4. Install retaining washer (10) and the bolts.

   Note: Later models have two retaining washers.

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   Illustration 3	g01255146

5. Position gear (8) on shaft (6) and install bolts (7).
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   Illustration 4	g01255143

6. Align the oil hole in the bearing and the oil hole in rear adapter assembly (1). Use Tooling (A) and a suitable press to install bearing (5) into rear adapter assembly (1). The bore of the bearing must be 75.000 ± 0.055 mm (2.9528 ± 0.0022 inch) after installation.

7. Use Tooling (A) to install seal (4) into rear adapter assembly (1). Ensure that the lip of the seal is toward the bearing.
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   Illustration 5	g00906726

8. Install O-ring seals (2) and (3) into rear adapter assembly (1). Place clean engine oil on the O-ring seals.

End By:

1. Install the accessory drive (front).