TM 5-4220-231-14&P TROUBLESHOOTING -  (Con't) MALFUNCTION TEST     OR    INSPECTION CORRECTIVE ACTION If  malfunction is   not   corrected, problems may    exist     in  both    primary and    secondary circuits of   DACC. If the   following steps do   not   correct the    malfunction, request intermediate direct    support maintenance. Step     4.    Check for  kinks    in  supply hoses from    DACC    to  VIA. Straighten supply hoses. Step     5.    Check HP   outlet    valve    on   DASS    to   ensure it is  open. Open     outlet    valve. Step     6.    Check HP   gage     on   DASS. If gage indicates below    normal     operating pressure, ensure flask    valves are    open. Open     flask    valves. If gage     still  indicates below    normal    operating pressure, DASS    needs recharging with   HP   air. Recharge DASS. If HP   gage     on   DASS     indicates normal     operating pressure, and   the    HP   outlet    valve    is  open, and    HP   air    does not   register on   HP  gage on   DACC,   then    the HP   hose     between DASS    and     DACC    is  fouled    or  clogged. Replace hose. - or  -    The    outlet    valve    on   DASS    is  faulty. Request intermediate direct    support. -  or  -    The    HP   in  valve    on   DACC    is  faulty. Request intermediate direct    support. 2.     DACC    PRIMARY     AIR   SUPPLY SIDE    MALFUNCTION. Step     1.    Ensure HP   air  is   reaching the    DACC    by  opening HP  supply     valve    on   DASS. Step     2.    Open HP   inlet   valve    on    DACC    and   observe HP    gage reading on   primary air   supply     side    of DACC. The    gage     should     read    the   same as   the   HP   gage     on  the    DASS. If not,   check     HP   gage isolation valve    on   DACC. 3-10