TM 9-2320-209-20-3-1 Section III. FUEL TANKS AND FUEL LINES 4-5. FUEL LINES AND FITTINGS REMOVAL AND REPLACEMENT. NOTE Procedures given are typical and cover all the different types of installations that you will find on the trucks. Procedures do not show any one truck system. Refer to system schematic illus- trations used as support diagrams for trouble- shooting each system given in vol. 3, chapter 10. TOOLS : 3/4-inch combination box and open end box wrench 7/16-inch combination box and open end box wrench (2) 11/16-inch combination box and open end box wrench 5/8-inch combination box and open end box wrench 10-inch pipe wrench 3/16-inch sockethead screw key (Allen wrench or equivalent) SUPPLIES : Sealer compound, type II, MIL-S-45180 PERSONNEL : One EQUIPMENT CONDITION : Truck parked, engine off, handbrake set. WARNING Smoking, flames, sparks and glowing or hot objects are not allowed within 50 feet of work area during maintenance of fuel system com– ponents. Fuel can explode, causing injury to personnel and damage to equipment. 4-8