C6.6 Engines for Caterpillar Built Machines Fuel Transfer Pump - Install Caterpillar

Installation Procedure

1. Ensure that the mating surfaces of fuel injection pump (1) and fuel transfer pump (2) are clean and free from damage.

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Illustration 1	g01335045

2. Install a new O-ring seal (11) to fuel transfer pump (2) . Lubricate the O-ring seal with clean engine oil.

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Illustration 2	g01335043

3. Align the holes in fuel transfer pump (2) with dowels (10) in fuel injection pump (1) . Install the fuel transfer pump to the fuel injection pump.

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Illustration 3	g01334899

4. Use an allen wrench with a ball end to install the allen head screws (3) . Tighten the allen head screws to a torque of 30 N·m (22 lb ft).

5. Remove the plugs and the caps from the ports and tube assemblies.

6. Install tube assembly (4) for the engine oil supply to fuel injection pump (1) . Install new washers to the banjo bolt for oil supply tube assembly. Install the banjo bolt to the cylinder block. Tighten both connectors to a torque of 15 N·m (11 lb ft).

7. Install tube assembly (8) for the fuel return to fuel transfer pump (2) and to the cylinder head. Tighten both banjo bolts to a torque of 21 N·m (15 lb ft).

8. Install a new O-ring seal to connector (6) . Install connector (6) to fuel transfer pump (2) . Tighten the connector to torque of 15 N·m (11 lb ft).

9. If necessary, install a new O-ring seal to connector (9) and install connector (9) to fuel transfer pump (2) . Tighten the connector to torque of 15 N·m (11 lb ft).

10. Connect plastic tube assembly (5) to the outlet of fuel transfer pump (2) .

11. Install plastic tube assembly (7) to fuel transfer pump (2) .

12. Turn the fuel supply to the ON position.

13. Remove the air from the fuel system. Refer to System Operation, Testing and Adjusting, "Fuel System - Prime".