LOCK 2S4853 - Caterpillar

Removal Procedure
Start By:
Remove the left side access door and covers.
Turn the fuel supply to the OFF position and turn the power disconnect switch to the OFF.
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Remove fuel line (1) .
Disconnect harness assembly (2). Remove bolts (3) and remove manifold (4) .
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Remove two locknuts (5) .
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Write down the polarity and remove the 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 two 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 new pump (12) and seals.Note: The outlet of the pump should be at the top center position.
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Install the wires on the terminal studs. Install new locknuts (6). Torque locknuts to 1.3 N m (11.5 lb in).
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Install new seal (7) .
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Install the manifold (4) .
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Reinstall bolts (3). Torque the bolts to 12 3 N m (106 27 lb in).
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Replace filter connector fitting (13) .
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Reconnect the solenoid harness (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.