COMMON AR 3814383 - Caterpillar

Note: Use Tooling (A) to cap tube assemblies, fittings, ports, and any opening in the fuel system to prevent contamination.
Disconnect tube assembly (3) and remove the bolts on tube assembly (2) . Remove bolts (5) . Disconnect tube assembly (4) . Remove tube assembly (2) and the O-ring seals. Remove bolts (6) .Note: If necessary, remove secondary fuel filter lines in order to remove tube assembly (2) .
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Remove bolts (9) . Remove bolts (10) and bolts (11) . Repeat for the opposite side.
Remove tube assembly (7) . Remove tube assembly (8) and the O-ring seal.
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Attach a suitable lifting device to fuel rail (13) . The weight of fuel rail (13) is approximately 60 kg (131 lb). Remove bolts (12) . Remove fuel rail (13) .
Place the high-pressure fuel rail on a clean surface. Support the rail so the weight is not resting on the quills. All openings should be capped or plugged to prevent contamination.
Repeat Steps 5 and 6 for the opposite side.Installation Procedure
Note: Carefully remove Tooling (A) to prevent contamination.
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Attach a suitable lifting device onto fuel rail (13) . The weight of fuel rail (13) is approximately 60 kg (131 lb). Install fuel rail (13) . Install bolts (12) .
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Tighten bolts (12) in the sequence that is shown in Illustration 8. Tighten bolts (12) to a torque of 100 20 N m (74 15 lb ft).
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Install the new O-ring seals. Lubricate the ends of tube assembly (8) and the O-ring seals with clean engine oil. Install new bolts (9) and the washers. Hand tighten new bolts (9) evenly to assemble tube assembly (8) to prevent cutting or damage to the O-ring seals. Install tube assembly (7) . Install and bolts (10) and (11) tighten by hand. Tighten new bolts (9) evenly to a torque of 20 N m (177 lb in). Note: Do not rotate new bolts (9) more than 90 degrees at a time.
Tighten new bolts (9) evenly to a torque of 40 5 N m (30 4 lb ft). Note: Do not rotate new bolts (9) more than 45 degrees at a time.
Tighten bolts (10) and (11) to a torque of 40 10 N m (30 7 lb ft).
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Note: If necessary, secondary fuel filter lines may need installed after tube assembly (2) has been installed. Do not attempt to push the flanges past O-ring seals by hand in order to prevent cutting or damage.
Install the new O-ring seals into the pump outlet, the inlet, and the junction block. Lubricate O-ring seals and the end of tube assemblies (2) and (4) with clean engine oil. Note: Do not rotate the bolts in tube assembly (2) more than 90 degrees at a time.
Install new bolts (5) and the washers. Hand tighten new bolts (5) evenly to engage tube assemblies (2) and (4) to prevent damage of the O-ring seal.
Install bolts (6) and tighten by hand. Hand tighten bolts (5) evenly. Tighten bolts