TM 9-2320-209-20-3-1 FRAME 2 1. Join two fuel lines ( 1 and 2) to two fittings ( 3 and 4). Screw on two coupling nuts (5). 2. Using 3/4-inch wrench, tighten two coupling nuts (5). 3. If only primary fuel filter assembly is being changed, air bleed low pressure fuel system. Refer to para 4-10f. END OF TASK TA 080953 4-59