TM 9-2320-209-20-3-1 c. Replacement. WARNING Dry cleaning solvent is flammable. Do not use near an open flame. Keep a fire extinguisher nearby when solvent is being used. Use only in well-ventilated places. If this is not done, there may be injury to personnel and damage to equipment. FRAME 1 1. Using dry cleaning solvent, clean surface of mounting flange on sending unit (1) mounting flange and mating flange on fuel tank (2). 2. Put gasket (3) on fuel tank (2) flange and aline five holes. 3. Carefully put float arm (4) into tank. Aline mounting holes in sending unit (1) with five holes in flange of fuel tank (2) as shown. GO TO FRAME 2 7-186