TM 9-2320-209-20-3-1 e. Replacement of Secondary and Final Fuel Filter Assemblies. 1. Place secondary and final fuel filter assemblies (1) on three studs (2). 2. Using 9/16-inch wrench, screw on and tighten three nuts with lockwashers (3) 3. Join fuel lines (4, 5, 6, and 7) as tagged to four elbows (8). 4. Using 5/8-inch wrench, screw on and tighten three coupling nuts (9). 5. Using 11/16-inch wrench, screw on and tighten coupling nut ( 10). Take off tags. 6. Air bleed low pressure fuel system. Refer to para 4- 10f. END OF TASK TA 047514 4-60