3508C, 3512C and 3516C Marine Engines Fuel Transfer Pump - Assemble Caterpillar

Assembly Procedure

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Illustration 1	g01113012

1. Use Tooling (A) to install inner lip seal (18) and outer lip seal (17) into bracket (16). Lubricate the lip seals with clean engine oil.

   Note: If the bearings in bracket (16) are damaged, the bracket must be replaced. The bearings are nonserviceable separately.

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   Illustration 2	g01113004

2. Install terminal bushings (15) in casing (14). Install the O-ring seal in casing (14). Install casing (14) onto bracket (16).

3. Install idler gear (12) and drive shaft (13) into casing (14).
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   Illustration 3	g01113073

   Note: If the bearings in plate (9) are damaged, the plate must be replaced. The bearings are nonserviceable separately.

4. Install the O-ring seal into the side of the plate that is opposite of gasket (10). Install plate (9). Install gasket (10).
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   Illustration 4	g01112998

5. Use Tooling (A) to install check valve (11) into head (8).
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   Illustration 5	g01112994

6. Install head (8) onto plate (9).

7. Install bolts (7).
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   Illustration 6	g01112986

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   Personal injury can result from parts and/or covers under spring pressure. Spring force will be released when covers are removed. Be prepared to hold spring loaded covers as the bolts are loosened.

8. Install poppet valve (3), spring (4), washer (5), and cap (6).

9. Install O-ring seal (2).

10. Install drive coupling (1).

End By:

1. Install the fuel transfer pump. Refer to Disassembly and Assembly, "Fuel Transfer Pump - Install".