TM-9-2815-220-34 Direct Support Manual for AVDS-1790-2C and AVDS-1790-2D Engines Download
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TM 9-2815-220-34 I (2) and connect fuel outlet hoses (I). Remove shipping plug from filter cover and instaU bleeder valve (I, fig. 2-64) and open. Close drain cock (fig. 2-62) and purge fuel system. Close bleeder valve a ft er purging. 2-24. Fuel/Water Separator Filter Elements NOTE Entire area around the fuel/water separator filter should be thoroughly cleaned to prevent the entry of dirt or other foreign objects before removing the covel·. a .. Removal. (1) Open drain cock (fig. 2-62) and bleeder valve (1, fig. 2-64) and drain fuel into a suitable container. (2) Remove eight capscrews, lockwashers and plain washers (fig. 2-65). (3) Remove cover (fig. 2-66) and remove and discard preformed packing. Remove and discard outer two coalescer elements from filter body. NOTE Do not remove the final (center) element (fig. 2-66) unless dirty or contaminated fuel make it necessary. Element removal could permit possible dirt entry into the fuel injection pump. This center element is normally serviced at engine overhaul only. b. Installation. (1) Install two new outer coalescer elements (fig. 2-66) in filter body, and a new prefo1·med pack- ing on body cover. Install cover and secure with eight capscrews, lockwashers and plain washers (fig. 2-65). NOTE Replacement elements and preformed packing are available in parts kit 5702738. (2) Close drain cock (fig. 2-62), and purge fuel system. Close bleeder (1, fig. 2-64) valve after purg- ing. 2-25. Primary Fuel Filter a. Removal. (1) Disconnect bleeder hose elbow (1, fig. 2-67) from connector (2). Open bleeder valve (3) and drain fuel into a suitable container. Remove bleeder hose connector and retain for installation in replacement filter. (2) Disconnect fuel outlet hose (4). Remove and retain fuel outlet elbow (5). Loosen two self-locking nuts (6) and remove primary fuel filter (7) from primary fuel filter mounting bracket (8). 2-@ Change 3 Fiq1o·e 2·65. Re111ovi11g or i11stalli119 fuel/wuter separator jilter CCl'. �ig1�rc -66. Removing and installing fuel/water separator filter eleme11ts. b. Installation. NOTE The fuel inlet connection must be in the position shown in figure 2-67 for the Model AVDS-1790-2C engine, as shown in figure 2-G8 for the Model AVDS-1790-2D, and as shown i'n figure 2-68.1 for the Model AVDS-1790-2DR engine.