CARRIER AS-DIFFERENTIAL 1413140 - Caterpillar

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Remove bolts (3) from manifold.
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Remove manifold (4).
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Remove locknuts (5).
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Write down the polarity and remove wires (6) from the terminal studs. The polarity is designated by “+” and “-” signs around the terminal studs.
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Remove seal (7).
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Remove pump assembly (8).
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Remove backup rings (9), seal (10), and seal (11) from the pump assembly. Installation Procedure
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Proper orientation of the new fuel priming pump.
Use the pump seal installer that is provided in the pump kit to press in the new pump (12) and seals. Note: The outlet of the pump should be at the top center position.
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Reinstall the wires on the terminal studs. Install new locknuts (6). Torque locknuts to 1.3 N m (1 lb ft).
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Install new seal (7).
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Reinstall manifold (4).
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Reinstall bolts (3). Torque the bolts to 12 3 N m (9 2 lb ft).
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Replace filter connector fitting (13).
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Install bolt (1). Reconnect harness assembly (2).
Turn the fuel supply to the ON position and turn the power disconnect switch to the ON.
Use two people in order to flush the fuel pump and fuel line (1) into a suitable container for disposal. The fuel pump can be activated by turning on the key or pressing the manual switch. The manual switch, if available, is located on the primary fuel filter base.
Connect fuel line (1) to the ARD manifold.
After reassembly, prime the engine by turning on the key or pressing the manual switch. The manual switch, if available, is located on the primary fuel filter base. Visually check for leaks around the pump and around the connections on the ARD manifold. If leaks are observed, resolve the leak issue before proceeding further.