D250E Series II and D300E Series II Articulated Trucks 3306B Engine Supplement Caterpillar

Removal Procedure

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Personal injury or death can result from a fire. Fuel leaked or spilled onto hot surfaces or electrical components can cause a fire. Clean up all leaked or spilled fuel. Do not smoke while working on the fuel system. Turn the disconnect switch OFF or disconnect the battery when changing fuel filters.

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NOTICE
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide", for tools and supplies suitable to collect and contain fluids in Caterpillar machines. Dispose of all fluids according to local regulations and mandates.

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Hot engine components can cause injury from burns. Before performing maintenance on the engine, allow the engine and the components to cool.

1. Put identification marks on all lines, hoses, wires, and tubes for installation purposes. Plug all lines, hoses, and tubes. This helps to prevent fluid loss and this helps to prevent contaminating the fuel system.

2. Open the engine hood.

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Illustration 1	g00348912

3. Disconnect hoses (2) and (3) from fuel filter assembly (4) . Remove two bolts (1) from fuel filter assembly (4) . Remove fuel filter assembly (4) from the engine.

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Illustration 2	g00348913

4. Remove two bolts (6) that secure fuel priming pump (5) to fuel filter assembly (4) . Remove fuel priming pump (5) from fuel filter assembly (4) .

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Illustration 3	g00348914

5. Remove gasket (7) from the fuel filter assembly. Loosen bolt (8) .

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Illustration 4	g00348915

6. Remove filter case assembly (10) from fuel filter base (9) .

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Illustration 5	g00348916

7. Remove filter element assembly (11) from filter case assembly (10) .

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Illustration 6	g00348917

8. Remove retainer ring (15) , element retainer (14) , and spring (13) from stud (12) and filter case assembly (10) .

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Illustration 7	g00349077

9. Remove gasket (16) from fuel filter base (9) . Remove retainer ring (17) from bolt (8) . Remove bolt (8) and the O-ring seal from fuel filter base (9) .

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Illustration 8	g00348919

10. Remove O-ring seal (18) from bolt (8) .

Installation Procedure

1. Inspect all parts and clean all parts. If any parts are worn or damaged, use new Caterpillar parts for replacement.

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Illustration 9	g00348919

2. Install O-ring seal (18) on bolt (8) .

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Illustration 10	g00349077

3. Install bolt (8) and the O-ring seal in fuel filter base (9) . Install retainer ring (17) on bolt (8) . Install gasket (16) on fuel filter base (9) .

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Illustration 11	g00348917

4. Install retainer ring (15) , element retainer (14) , and spring (13) on stud (12) and filter case assembly (10) .

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Illustration 12	g00348916

5. Install a new filter element assembly (11) in filter case assembly (10) .

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Illustration 13	g00348914

6. Tighten bolt (8) that secures the filter case assembly to the filter base assembly.

7. Install gasket (7) to the filter base assembly.

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Illustration 14	g00348913

8. Position fuel priming pump (5) to fuel filter assembly (4) . Install two bolts (6) that secure fuel priming pump (5) to fuel filter assembly (4) .

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Illustration 15	g00348912

9. Position fuel filter assembly (4) to the engine. Install two bolts (1) to secure fuel filter assembly (4) to the engine. Install hoses (2) and (3) to fuel filter assembly (4) .

10. Prime the fuel system. Shut the engine hood.