TM 9-2320-209-20-3-1 4-24. MANIFOLD HEATER (TOP-MOUNTED, COVERED) FUEL FILTER REMOVAL AND REPLACEMENT. TOOLS: 7/16-inch wrench 9/16-inch wrench 11/16-inch wrench SUPPLIES: None PERSONNEL: One EQUIPMENT CONDITION: Truck parked, engine off, handbrake set. Preliminary Procedure. Open hood and left side panel. Refer to TM 9-2320-209-10. b. Removal. 1. 2. 3. 4* 5. 6. Using 9/16-inch wrench, hold adapter (l). Using 7/16-inch wrench, unscrew tube fitting (2). Using 9/16-inch wrench, hold elbow ( 3). Using 9/16-inch wrench, unscrew and take off adapter (1). Using 11/16-inch wrench, hold filter (4). Using 9/16-inch wrench, unscrew and take off elbow ( 3). Using 11/16-inch wrench, hold filter (4). Using 7/16-inch wrench unscrew and take off tube fitting (5). Using 9/16-inch wrench, and holding filter (4) , unscrew and take off capscrew (6). Take off lockwasher (7) and fuel filter (4). END OF TASK 4-129