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Fuel leaked or spilled onto hot surfaces or electrical components can cause a fire. To help prevent possible injury, turn the start switch off when changing fuel filters or water separator elements. Clean up fuel spills immediately. |
Note: Refer to Systems Operation, Testing and Adjusting, "Cleanliness of Fuel System Components" for detailed information on the standards of cleanliness that must be observed during ALL work on the fuel system.
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Ensure that the engine is stopped before any servicing or repair is performed. |
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Do not allow dirt to enter the fuel system. Thoroughly clean the area around a fuel system component that will be disconnected. Fit a suitable cover over any disconnected fuel system components. |
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The low-pressure fuel system can be pressurized for a time period after the engine has stopped operating. The operating pressure of the low-pressure fuel system can be |
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The extended service option (dual high efficiency fuel filters, dual oil filters, and large capacity oil pan) increases oil, oil filter, and fuel filter change intervals to approximately 1000 hours (from the standard 500-hour interval). This duration is not a guarantee, and actual performance may be better or worse depending on several variables. Variables such as air cleaner performance, fuel quality, oil quality, load factor, maintenance procedures, environment, all may affect service intervals. To attain the maximum service interval for a specific application, the customer must use approved engine oil and fuel per Cat guidelines. The customer must also useCat filters, and the Cat S·O·S sampling analysis system every 250 hours. Following the procedures in Special Publication, PEHJ0192, "Optimizing Oil Change Intervals" is also advisable. |
Note: Both fuel filter elements must be replaced.
- Ensure that the fuel supply valve (if equipped) is in the OFF position. Place a suitable container under the fuel filters to catch any fuel that might spill. Clean up any spilled fuel.
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Illustration 1 g03353094 Typical example - Install a suitable tube onto connection (4). Rotate the drain valve (3) counterclockwise. Two full turns are required.
- Allow the fuel to drain into the container and remove the tube.
- Remove the filter bowl (2) from filter body (1). Rotate the filter bowl counterclockwise to remove the assembly.
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Illustration 2 g03353105 Typical example - Rotate the filter element (5) counterclockwise and remove the filter element. Clean the filter bowl.
- Locate the thread (7) in the filter element onto the threads (6). Spin on the new filter element and tighten the drain valve (3) by hand.
- Lubricate the seal on the filter element (5) with clean engine oil. Do NOT fill the filter bowl (2) with fuel before the filter assembly is installed.
- Do not use a tool to install the filter assembly. Tighten the assembly by hand. Install the filter bowl (2). Turn the filter bowl clockwise until the filter bowl locks into position against the stops.
- Filter assembly (A) is now complete. Perform the same procedure on filter assembly (B).
- When both filter elements have been replaced with new filter elements the fuel system can be primed, if the primary filter has also been renewed. If necessary, turn the fuel supply valve to the ON position.
- Prime the fuel system. Refer to the Operation and Maintenance Manual, "Fuel System - Prime" for more information.
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| Illustration 3 | g03353115 |
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Typical example | |