3406E On-Highway Engine Caterpillar

Assembly Procedure

Illustration 1	g01017356

1. Install bearings (10) in the body assembly with Tooling (B). The bearing joint should be 30 ± 15 degrees from the center line of the two bearing bores. Install the bearings so the bearings are even with the outside of the body assembly.

2. Before final assembly, check the condition and specifications of all of the parts of the engine oil pump. Refer to Specification, "Engine Oil Pump".
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   Illustration 2	g01001929

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   Improper assembly of parts that are spring loaded can cause bodily injury. To prevent possible injury, follow the established assembly procedure and wear protective equipment.

3. Lubricate the bearings and idler gear and drive gear (3) with clean engine oil. Install the idler gear and drive gear in body assembly (2).

4. Install cover (4). Install bolts (5) in order to secure the cover to body assembly (2).

   Note: The engine oil pump must turn freely after assembly. Turn the engine oil pump by hand. Reposition cover (4) if the pump does not turn freely.

5. Install bypass valve (6), spring (7), retainer (8), and bolts (9).

6. Install the key on the shaft.
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   Illustration 3	g01017258

7. Install drive gear (1). Install bolt (11). Tighten the bolt to a torque of 55 ± 10 N·m (41 ± 7 lb ft).

End By:

1. Install the engine oil pump. Refer to Disassembly and Assembly, "Engine Oil Pump - Install".