15-24 TM 9-2320-361-34 Section Ill. FUEL TANK AND WATER TANK BODIES MAINTENANCE I 15-7. FUEL TANK AND WATER TANK BODIES MAINTENANCE INDEX PARA. TITLE PAGE NO. NO. 15-8. Fuel and Water Tank Bodies Maintenance 15-25 15-9. Tank Bodies Frame Sill Maintenance 15-32 15-10. Discharge Valve Repair (M50A2) 15-36 15-11. Discharge Valve Repair (M49A2C and M50A3) 15-42 15-12. Delivery Pump Repair 15-48 15-13. Sump Valve, Drain Valves, and Drain Tubes Maintenance (M49A2C) 15-56