C15 and C18 Generator Set Engines Caterpillar

Disassembly Procedure

Start By:

1. Remove the fuel temperature sensor. Refer to Disassembly and Assembly, "Fuel Temperature Sensor - Remove and Install".

2. Remove the fuel pressure sensor. Refer to Disassembly and Assembly, "Fuel Pressure Sensor - Remove and Install".

3. Remove the fuel filter base. Refer to Disassembly and Assembly, "Fuel Filter Base - Remove".

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Illustration 1	g06350343

1. Remove fuel bypass valve (1) from fuel filter base assembly.

2. Remove O-ring seals (2) and (3) from fuel bypass valve (1).
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   Illustration 2	g06350288

3. Remove dust cap (4) and straight adapter (5).

4. Remove O-ring seal (6) from straight adapter (5).
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   Illustration 3	g06350301

5. Remove elbow adapter (7) and O-ring seal (8).

6. Remove cap (12) from check valve (10).

7. Remove O-ring seals (9) and (11) from check valve (10).
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   Illustration 4	g06350357

8. Remove straight adapter (14) and elbow adapter (16).

9. Remove O-ring seal (13) from straight adapter (14).

10. Remove O-ring seal (15) from elbow adapter (16).
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    Illustration 5	g06350368

11. Remove check valve (17).

12. Remove O-ring seals (18) and (19) from check valve (17).
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    Illustration 6	g06350369

13. Remove stud (20).

14. Remove check valve (23).

15. Remove O-ring seals (21) and (22) from check valve (23).