TM  5-4220-231-14&P 4-40    Low   Pressure (LP)    Hose    Assembly. This   task   covers: Replace - Hose   Assembly Between     Volume    Tank   and   Volume    Tank    Panel    Fittings. INITIAL   SETUP Tools Equipment Condition General Mechanics Tool   Kit Open    drain   valve   to  release any   pressurized air from   volume    tank. Materials/Parts References Low  Pressure Hose    assembly, 13229E4656 Para    3-13,    Maintenance and    Reentry    Control    Procedures O-Ring,    M83248/2-11 1  (2) Nonionic    Detergent     Solution    (NID),  GP   (Item   17,  Appendix     E) Silicone    Compound (Item   9,  Appendix     D) a. Remove PANEL (1) Determine which    of  the    low   pressure flexhose assemblies between the    vol- ume   tank    and   the   volume     tank    panel     is to   be   removed and    replaced. These instructions apply   to  either    of  the   hose assemblies. VOLUME TANK (2) Loosen and    remove     end    of  flexhose assembly (1)   at   the    volume tank. Position    a  wrench    on   elbow    and   union nut.   Turn    union    nut   (2)   counterclock- wise.    Remove,     cut,   and    discard     O-ring (3). VOLUME 2.3 TANK (3) Loosen and    remove opposite end    of flexhose assembly from   fitting   at   the volume    tank    panel.     Position     a  wrench on  the   union    nut  (4)  on   the   end   of  the PANEL hose    assembly and   on  the   appropriate fitting,     which    is  the    tee    (6)   or   the adapter (5).   Turn   union    nut   (4)  coun- 6 terclockwise. Remove, cut,    and    dis- card   O-ring   (3). 4,3 Ej 2. @3 @5 Change 1 4-119