TM 5-5420-226-20-1 — ( Symptom-74 DETAILED TROUBLESHOOTING PtiOCED SUPPORT SYSTEM -   PERSONNEL HEAT (Continued) I Check PERSONNEL HEATER Hi/LO switch between \ terminals 2 and  3 for  continuity (PERSONNEL HEATER ; Hi/LO switch ON-HI). ~ First Technician (Commander’s Station) / l   Install   basket-control panel    heater harness connector at basket disconnect. Second Technician (Operator’s Station) l SORIES NESS ECTOR l l l Disconnect basket-control panel accessories harness connector from master control panel. Remove    4 screws, nuts   and   washers from   master    control panel accessories harness connector and unmount connector from master control panel. Set   PERSONNEL HEATER HI/LO switch ON-HI. Connect red   probe    of  meter to   HI/LO switch terminal . L. Connect black   probe   of  meter    to  Hi/LO switch    terminal 3. Check if  meter indicates continuity. Does    meter indicate continuity? I l   Replace    PERSONNEL HEATER Hi/LO switch (page 10-77). l   Install control panel acces- sories harness connector in master control panel. l   Connect basket-control panel accessories harness connector to master control panel    connector. l   Connect basket-control panel heater harness connector to master control panel connector. l   Install master control panel (page 10-33). l   Connect heater to basket disconnect harness    connector to  personnel heater    fuel   pump. TA1074OO 4-711