ARMY TM 9-6115-604-12NAVY NAVFAC P-8-633-12(4) Connect wiring (21 ) as tagged, and discard the tags.(5) Install cover and red cap (19).4-49.MAINTENANCE OF FUEL FILTER ASSEMBLIES . The following procedures apply to the fuel filter assembliesassociated with the fuel transfer pump (See figure 4-38) and fuel filter assemblies associated with the engine fuel supplyfrom the tank (See Figure 3-3). Filters are supplied to filter the fuel from the external supply into the generator set tankand to filter fuel from the generator set tank to the engine.a.Remove.(1 ) Remove all hoses connected to the filter being replaced.(2) Remove hexagon head capscrews (8, figure 4-38) and carefully lift off the fuel filter head assembly(17).b.Repair. See figure 4-38 Repair by replacement with new parts Replace all worn, damaged, or suspectitems.c.Install.(1) Position new fuel filter head assembly (17) and secure with hexagon head capscrews (8).(2) Connect all hoses.4-50.REPLACE FUEL LINES. See figure 3-16 and Figure 3-14. Fuel lines provide paths for fuel to flow throughoutthe fuel system.Diesel fuel, while not as volatile as gasoline, will burn when it contacts asufficiently hot surface or an open flame. Ensure that all hot surfaces under fuellines to be replaced are covered. Ensure that buckets or pans are provided tocatch any spilled fuel. Failure to observe this warning could cause injury topersonnel or damage to equipment.a.Inspect.(1 ) Fuel lines must not be close to any heat producing part of the engine or exhaust system, and mustnot be allowed to rub or chafe against any surface.(2) Fuel lines must be supported for their full length. Flexible sections should not be left unsecured.(3) Fuel lines must be not kinked or otherwise damaged by the installation process.(4) Fuel lines must not be under any mechanical strain, nor should any flexible sections be bentexcessively.(5) Replace any fuel lines which do not conform to these standards.b.Remove.(1) Disconnect connections at each end of the line to be replaced. Drain fuel into hand held container,then cap the line.(2) Remove all clamps and attaching hardware.(3) Work the line out of the generator set.c.Install.(1 ) Match the new line to the old, if available, to ensure that all fittings are correct and that the length iscorrect.(2) As far as possible, match the bends of the original line(3) Place the line in its correct position in the generator set.(4) Connect, but do not tighten, both ends of the line (5). Secure the line with clamps or other meansof attachment removed during step b (2), above (6). Tighten the fittings at both ends of the newline.4-109
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