TM 9-2320-209-20-3-1 4-6. FUEL TANK REMOVAL AND REPLACEMENT (ALL TRUCKS EXCEPT M275A1 AND M275A2). TOOLS : 5/8-inch wrench 1/2-inch wrench SUPPLIES : Sealer compound, type II, Mil. Spec S-45180 PERSONNEL : Two EQUIPMENT CONDITION : Truck parked, engine off, handbrake set. a. Preliminary Procedures. (1) Disconnect battery ground cable. Refer to para 7-58. (2) Drain fuel tank. Refer to TM 9-2320-209-10. (3) Take fuel lines and electrical connector off in-tank fuel pump. Refer to para 4-8. b. Removal. WARNING Do not permit smoking, sparks or open flame within 50 feet of truck during fuel tank removal. Fuel could explode, causing injury to personnel and damage to equipment. FRAME 1 1. Using l/2-inch wrenches, loosen two locknuts (1) on bolts (2) . 2. Using 5/8-inch wrenches, unscrew and take off two locknuts (3) and two bolts (4) . 3. Swing retaining bands (5) down and away from fuel tank (6) . GO TO FRAME 2 4-29