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SEBU8311-01 79 Maintenance Section Fuel System - Prime 3. Operate hand priming pump (6). When fuel free from air flows from the vent screw tighten the vent screw. 4. Loosen connection (10 or 12) at the fuel injection pump. Refer to illustration 53. Note: Fuel return line (11) may need to be removed in order to prime the fuel system. 5. Operate the hand priming pump. When fuel free from air flows from the connections tighten the connecting bolt. 6. The engine should now be able to start. Operate the starting motor in order to start the engine. Note: Do not operate the starting motor for more than 15 seconds. If the engine does not start after 15 seconds, stop and wait for 30 seconds before trying again. In-line Priming Pump 7 In order to identify the in-line priming pump, refer to illustration 52. 1. Ensure that fuel valve (2) for the fuel filter that has an element is in the ON position. Refer to illustration 49. 2. Loosen vent screw (3 4 or 5) on the fuel filter. 3. Operate in-line priming pump (7). When fuel free from air flows from the vent screw tighten the vent screw. 4. Loosen connection (10 or 12) at the fuel injection pump. Refer to illustration 53. Note: Fuel return line (11) may need to be removed in order to prime the fuel system. 5. Operate the in-line priming pump. When fuel free from air flows from the connections tighten the connecting bolt. 6. The engine should now be able to start. Operate the starting motor in order to start the engine. Note: Do not operate the starting motor for more than 15 seconds. If the engine does not start after 15 seconds, stop and wait for 30 seconds before trying again. Electrical Priming Pump 8 In order to identify the electrical priming pump, refer to illustration 52. 1. Ensure that fuel valve (2) for the fuel filter that has an element is in the ON position. Refer to illustration 49. 2. Loosen vent screw (3 4 or 5) on the fuel filter. 3. Operate electrical priming pump (8). When fuel free from air flows from the vent screw tighten the vent screw. Switch off the electrical priming pump. 4. Loosen connection (10 or 12) at the fuel injection pump. Refer to illustration 53. Note: Fuel return line (11) may need to be removed in order to prime the fuel system. 5. Operate the in-line priming pump. When fuel free from air flows from the connections tighten the connecting bolt. 6. The engine should now be able to start. Operate the starting motor in order to start the engine. Note: Do not operate the starting motor for more than 15 seconds. If the engine does not start after 15 seconds, stop and wait for 30 seconds before trying again. Fuel Transfer Pump 9 In order to identify the fuel transfer pump, refer to illustration 52. Note: In order to use the transfer pump, you must operate the starting motor. Do not operate the starting motor for more than 15 seconds. After 15 seconds, stop and wait for 30 seconds before operating the starting motor. 1. Ensure that fuel valve (2) for the fuel filter that has an element is in the ON position. Refer to illustration 49. 2. Loosen vent screw (3 4 or 5) on the fuel filter. 3. Operate fuel transfer pump (9). When fuel free from air flows from the vent screw tighten the vent screw. Stop the fuel transfer pump. 4. Loosen connection (10 or 12) at the fuel injection pump. Refer to illustration 53. Note: Fuel return line (11) may need to be removed in order to prime the fuel system. 5. Operate the fuel transfer pump. When fuel free from air flows from the connections tighten the connecting bolt. Stop the transfer pump. 6. The engine should now be able to start. Operate the starting motor in order to start the engine. |