TM 6-4220-231-14&P 5-11. Gage    solation    Valve  (CRS) (DASS).   See   Figure 5-10 This    task    covers INITIAL   SETUP Tools Equipment Condition General Mechanics Tool    Kit Remove Isolation Valve    from   CRS     (Para.    4-37) O-ring    Installation and     Removal Tool Materials/Parts Reference Bags,     Plastic     (Item    6,  Appendix D) Para.     3-13    Maintenance and    Reentry Control Procedures Valve,     Instrument 13229.E4570 Grease, Halocarbon (Item    13,   Appendix D) Rags,    clean, lint-free     (Item    15,   Appendix D) O-ring,    000009EE Backup Ring,    01009 E2 Stem, 10717OXX Stem Retainer, 106290-CL Silicone Compound (Item    9,  Appendix D) Nonionic Detergent Solution (NID)   GP (Item    17,   Appendix D) WARNING Inspect all  seating and    sliding    metal    surfaces for   damage that    might cause leaks    or  faulty    operation. Replace any   defective items. NOTE Perform in  a   clean     environment. NOTE Clean     metal     parts    with   nonionic detergent solution (NID)   (Item    17, Appendix D).  Wipe    with  clean rags    (Item    15,   Appendix D)  to  get desired level   of   cleanliness. NOTE Lubricate threads and   sliding    contact surfaces before,reassembly with   halocarbon grease (Item    13,   Appendix D). a. Disassembly Instructions (1) Remove retaining     ring   on   the   safety    wire   assembly (12)   from   relief   cap    nut   (13). (2) Remove     relief  cap    nut   (13)  from   stem    (5). Change 1 5-43