3304B and 3306B Engines for Caterpillar Built Machines Engine Oil Pump - Assemble Caterpillar

Assembly Procedure

Show/hide table

Illustration 1	g01940294

Show/hide table

Illustration 2	g01940736

1. Use Tooling (C) in order to install bearings (18) in pump body (8) according to the following specifications:

   1. Place bearings (18) in position on the inside of pump body (8) with the chamfer on the bearings toward the outside of the pump body.

   2. Ensure that the joints in the bearings are at an angle of 30° ± 15° from the center line through the bearing bores. Ensure that the joints are toward the outlet passage of the pump.

   3. The outlet passage has a cavity between the bearing bores.
   Show/hide table

   Illustration 3	g01940293

   Show/hide table

   Illustration 4	g00480381

2. Use Tooling (C) in order to install bearings (17) in cover (11) according to the following specifications:

   1. Place bearings (17) in position on the inside of cover (11) with the chamfer on the bearings toward the outside of the cover.

   2. Ensure that the joints in the bearings are at an angle of 30° ± 15° from the centerline through the bearing bores. Ensure that the joints are toward the outlet passage of the pump.

   3. The outlet passage has a cavity between the bearing bores.

3. Check the condition and the specifications of all the parts of the engine oil pump before you assemble the engine oil pump.

4. Apply clean engine oil to all of the parts of the engine oil pump.
   Show/hide table

   Illustration 5	g01939558

5. Install pressure relief valve (13) and bolt (14).

6. Install shaft assembly (10) and shaft assembly (9) in pump body (8).

7. Install O-ring seal (15), cover (11), bolt (12), and bolts (16) in pump body (8).
   Show/hide table

   Illustration 6	g01939557

8. Install drive gear (5) on the shaft.

9. Install washer (6) and bolt (7) on drive gear (5).

10. Use Tooling (B) in order to install the bearing in idler gear (4). Ensure that the bearing is even with the outside surface of idler gear (4).

11. Install idler gear (4).
    Show/hide table

    Illustration 7	g01939556

12. Install suction bell (3), locknut (1), and bolts (2).

Note: Before you install the engine oil pump, lubricant must be in the oil pump and the oil pump must turn freely.

End By:

1. Install the engine oil pump.