C175-16 Locomotive Engine Caterpillar

Assembly Procedure

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Illustration 1	g01040290

1. Use Tooling (E) and a suitable press to install bearing assembly (17) on pump shaft (12) .

2. Install bearing cone (23) on the pump shaft.

3. Install spacer (22) and bearing cups (21) on the pump shaft.

4. Install bearing cone (20) on the pump shaft.

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Illustration 2	g01035607

5. The splined end of pump shaft (12) is marked in order to indicate either RH threads or LH threads on the pump shaft. Install bearing locknut (16) . Use Tooling (D) on the bearing locknut. Tighten the bearing locknut to a torque of 300 ± 30 N·m (221 ± 22 lb ft).

   Note: The torque wrench must be 90 degrees to Tooling (D) .

6. Install set screws (15) and tighten to a torque of 8 ± 1 N·m (70.8 ± 8.9 lb in).

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Illustration 3	g01035690

Note: Do not damage the wear surfaces of the carbon ring or the ceramic ring. Do not touch the wear surfaces of the carbon ring or the ceramic ring. Install the ceramic ring with the smoothest face of the ring toward the carbon seal.

7. Apply Tooling (F) to the outside diameter of ceramic seal (18) that is recessed inside the rubber ring . Use Tooling (G) and hand pressure to install ceramic seal (18) and the rubber ring in bearing housing (3) .

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Illustration 4	g01035699

8. Use Tooling (A) and a suitable press to install lip seal (19) in bearing housing (3) . Ensure that the lip is toward the outside.

   Note: Install the lip seal dry. Install the lip seal within 2 minutes of removal from the shipping sleeve.

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Illustration 5	g01035809

9. Lubricate pump shaft (12) with clean engine oil. Install the pump shaft in bearing housing (3) . Install retainer (11) . Install socket head bolts (10) and tighten to a torque of 12 ± 3 N·m (106 ± 27 lb in).

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Illustration 6	g01035829

Note: Do not damage the wear surfaces of the carbon ring or the ceramic ring. Do not touch the wear surfaces of the carbon ring or the ceramic ring. Install the ceramic ring with the smoothest face of the ring toward the carbon seal.

10. Remove spring (14) from ceramic seal (13) .

11. Apply Tooling (F) to the inside diameter of ceramic seal (13) . Use hand pressure and the tool that is supplied with the water pump seal group to install the ceramic seal. The face of ceramic seal (13) should make light contact with ceramic seal (18) .

12. Install spring (14) .

13. Lubricate pump shaft (12) on bearing housing (3) with clean engine oil. Position impeller (9) on the pump shaft.

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Illustration 7	g01035846

14. Place bearing housing (3) on impeller (9) . Use a suitable press and press pump shaft (12) into the impeller. Install the impeller so the dimension between the impeller and the pump shaft is 0.000 ± 0.076 mm (0.0000 ± 0.0030 inch).

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Illustration 8	g01035264

15. Install O-ring seal (8) on bearing housing (3) . Lubricate the O-ring seal with clean engine oil.

16. Position bearing housing (3) in housing (5) . Install the washers and bolts (7) finger tight.

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Illustration 9	g01036084

17. Tighten the bolts in a numerical sequence to a torque of 50 ± 9 N·m (35 ± 7 lb ft).

18. Use Tooling (H) and measure the gap between the impeller and the pump housing. The minimum gap between the impeller and the pump housing is 0.20 mm (0.008 inch).

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Illustration 10	g01036014

19. Install the O-ring seal on plug (6) . Install the plug-in housing (5) . Tighten the plug to a torque of 177 ± 7 N·m (131 ± 6 lb ft).

20. Install the O-ring seal on plug (2) . Install the plug-in bearing housing (3) . Tighten the plug to a torque of 8 ± 1 N·m (71 ± 9 lb in).

21. Install the O-ring seal on plug (1) . Install the plug-in bearing housing (3) . Tighten the plug to a torque of 17 ± 1 N·m (150 ± 9 lb in).

22. Install water pump filter (4) in bearing housing (3) .

End By: Install the water pump.