TM 9-2320-361-20 12-46. WATER TANK DISCHARGE TUBE AND VALVE REPLACEMENT (M50A3) (Contd) f. Discharge Tube Cover Installation 1. Slide discharge tube cover (2) right and cover discharge tube (19) and valves (9). 2. Install cover (2) with fifty-two screws (3). FOLLOW-ON TASK: Fill water tanks (TM 9-2320-361-10) and check for leaks. 12-71