UENR0623-02 55 Fuel System Testing And Adjusting Section 5. Cut the old filter open with a suitable filter cutter. Inspect the filter for excess contamination. Determine the source of the contamination. Make the necessary repairs. Fuel System i04802007 Air in Fuel - Test i04338391 Fuel System - Inspect Table 1 NOTICE Ensure that all adjustments and repairs that are carried out to the fuel system are performed by authorized personnel that have the correct training. NOTICE Ensure that all adjustments and repairs that are carried out to the fuel system are performed by authorized personnel that have the correct training.
Before beginning ANY work on the fuel system, refer to Operation and Maintenance Manual, “General Hazard Information and High Pressure Fuel Lines” for safety information. Before beginning ANY work on the fuel system, refer to Operation and Maintenance Manual, “General Hazard Information and High Pressure Fuel Lines” for safety information. Refer to Systems Operation, Testing and Adjust- ing, “Cleanliness of Fuel System Components” for detailed information on the standards of cleanliness that must be observed during ALL work on the fuel system.
Refer to Systems Operation, Testing and Adjust- ing, “Cleanliness of Fuel System Components” for detailed information on the standards of cleanliness that must be observed during ALL work on the fuel system. A problem with the components that transport fuel to the engine can cause low fuel pressure. This can decrease engine performance. Note: Ensure that the tools are stored with the caps in place. Store the tools in a clean plastic bag. 1. Check the fuel level in the fuel tank. Ensure that the vent in the fuel cap is not filled with dirt. 2. Check that the valve in the fuel return line is open before the engine is started. 1.
Ensure that the fuel level in the fuel tank is above the level of the suction pipe in the fuel tank. 2. Inspect the fuel system thoroughly for leaks. If necessary, repair the fuel system. 3. Check all low-pressure fuel lines for fuel leakage. The fuel lines must be free from restrictions and faulty bends. Verify that the fuel return line is not collapsed. 3. Check all low-pressure fuel lines from the fuel tank for restrictions. Replace any damaged components. 4. Install new fuel filters. 4. Prime the fuel system. Refer to Operation and Maintenance Manual, “Fuel System - Prime” for the correct procedure. 5. Start the engine.
Refer to Operation and Maintenance Manual, “Starting the Engine” for the correct procedure. Check if the problem has been resolved. Run the engine at low idle speed for 5 minutes. 6. Stop the engine. Refer to Operation and Maintenance Manual, “Stopping the Engine” for the correct procedure. Required Tools Tool Part Number Part Description Qty A - Sight gauge 1