C9.3 Marine Engine Caterpillar

Removal Procedure

Note: All high-pressure fuel line connections to be closed with protective caps from Tooling (B)

1. Turn the fuel supply to the OFF position and turn the power disconnect switch to the OFF position.
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   Illustration 1	g03838313

2. Use Tooling (A) to remove fuel filters (1).
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   Illustration 2	g03838317

3. Disconnect hose assembly (2) and hose assembly (3).
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   Illustration 3	g03838361

4. Remove bolts (4) and fuel filter base (5).
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   Illustration 4	g03838365

5. Remove shutoff valve (14), tee (11), adapter (10), and the O-ring seals.

6. Remove plug (6), plug (7), plug (8), plug (9), plug (12), and hollow studs (13).
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   Illustration 5	g03838417

7. Use Tooling (A) to remove fuel filters (16).

8. Remove adapter assembly (15) and disconnect hose assembly (17).
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   Illustration 6	g03838430

9. Remove bolts (18) and fuel filter base (19).
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   Illustration 7	g03838443

10. Remove check valve (28), shutoff valve (27), and elbow assembly (24).

11. Remove plug (20), plug (21), plug (22), plug (23), plug (25), and hollow studs (26).

Installation Procedure

1. Install fuel filter base (19) and fuel filter base (5) in the reverse order of removal.

   1. Apply Tooling (C) to the top 7.60 ± 0.80 mm (0.299 ± 0.031 inch) on the threads of hollow studs (13) and (26).

   2. Tighten hollow studs (13) and (26) to a torque of 70 ± 15 N·m (52 ± 11 lb ft).

   3. Lubricate the seals of fuel filters (16) and (1) with the fluid that is being sealed.

   4. Use Tooling (A) to tighten fuel filters (16) and (1). Tighten fuel filters (16) and (1) to a complete turn after seal contacts with the base.