TM 10-5430-243-12&P 0021 00 0021 00-1 UNIT MAINTENANCE TANK, FABRIC, COLLAPSIBLE, WATER STORAGE 20,000 AND 50,000 GALLONS FILLER/DISCHARGE GATE VALVE ASSEMBLY (GTA CONTAINER MODEL) REMOVAL, SERVICE, REPAIR AND INSTALLATION INITIAL SETUP Tools Mandatory Replacement Parts Tool Kit, General Mechanics Gasket (Item 1, WP 0033 00) (Item 1, WP 0041 00) Torque Wrench, (in-lb) Gaskets (Item 2, WP 0033 00) (Item 4, WP 0041 00) Torque Wrench, (ft-lb) Gasket, Valve Bonnet (Item 3, WP 0033 00) (Item 5, WP 0041 00) Lockwashers Materials/Parts (Item 6, WP 0041 00)     Crocus Cloth Lockwashers     (Item 1, WP 0039 00) (Item 7, WP 0041 00) Detergent, General Purpose (Item 2, WP 0039 00) Grease (Item 3, WP 0039 00) Rag, Wiping (Item 4, WP 0039 00) REMOVAL Hose Assembly, Coupling and Adapter 1.  Remove hose assembly (1) from gate valve assembly (2) by pulling two cam-lever arms (3) outward on female quick-disconnect coupling (4). 2.  Remove the chain and dust plug (5) from female quick-disconnect coupling (4), and the chain      and dust cap (6) from male-flanged adapter (7).  Remove gasket (8) from male-flanged adapter (7). 3.  Remove coupling gasket (9) from inside female quick-disconnect coupling (4). 4.  Remove eight hex nuts (10), lockwashers (11), hex-head cap screws (12), and washers (13) from        face of gate valve (14). 5.  Remove female quick-disconnect coupling (4) and flange gasket (15) from face of gate valve (14). 6.  Remove eight hex nuts (16), lockwashers (17), hex-head cap screws (18), and washers (19) from the opposite end of gate valve (14). 7.  Remove male-flanged adapter (7) and flange gasket (20) from gate valve (14). 8.  Discard flange gaskets (15) and (20).