TM 1-1510-224-10 11. Current limiters Check as follows: a. BATTERY    CHARGE     annunciator Check   on.      BATTERY    CHARGE annunciator should extinguish within 5 minutes following a normal engine start on battery. b. # 1 and # 2 INV annunciators Check extinguished. This procedure checks   both   400   and   500   ampere current  limiters  that  tie  aircraft  bus systems together. 12. GENERATOR switch RESET, then ON. NOTE To   reset   beacon   light,   turn   off   for approximately  5  seconds,  then  DAY or NIGHT.  When voltage drops below approximately  20  volts,  beacon  light may become inoperative. 13.  BEACON lights switch OFF, then as required. 8-16.  ABORT START PROCEDURE. 1. CONDITION lever FUEL CUTOFF. 2. ENG START switch STARTER ONLY. 3. TGT Monitor for drop in temperature. 4. ENG START switch OFF. 8-17.  ENGINE CLEARING PROCEDURE. 1. CONDITION lever FUEL CUTOFF. 2. ENG    START    switch    OFF    (15    minute minimum). 3. ENG START switch STARTER ONLY. 4. ENG START switch OFF. * 8-18.  FIRST ENGINE START (GPU START). NOTE The engines must not be started until after  the  INS  is  placed  into  the  NAV mode or OFF as required. 1. INS  mode selector switch  OFF  or  NAV  as appropriate.        After    placing    the    mode switch to NAV (state 5 or less): a. FPLN Depress. b. NAV SETUP (R5) Depress. c. INS SETUP (R5) Depress. d. AUTO    MIXING    (R3)    Depress    to TACAN, DL, GPS. e. ROLL LIMIT (R2) Depress to  ON or OFF. f. LEG   CHANGES   (L3)   Depress   to MAN or  AUTO. 2. 3f  AC  CONTROL  switches,   #1  INV  and #2 INV OFF. 3. EXTERIOR LTS switches As required. 4. Propeller area Clear. 5. ENG   START   switch    START-IGNITION. IGN ON  annunciator should illuminate and FUEL PRESS annunciator should extinguish. NOTE False   fuel   flow   indication   may   be observed   with   the   starter   engaged and   the   CONDITION   lever   in   FUEL CUTOFF. CAUTION If  ignition  does  not  occur  within  10 seconds    after    moving    CONDITION lever    to    LOW    IDLE,    initiate    Abort Start  procedure.    If  for  any  reason  a starting  attempt  is  discontinued,  the entire    starting    sequence    must    be repeated  after  allowing  the  engine  to come  to  a  complete  stop  (15  minute minimum). 6. CONDITION  lever  (after  N₁RPM stabilizes above 13% minimum) LOW IDLE. CAUTION Monitor  TGT  to  avoid  a  hot  start.    If there    is    a    rapid    rise    in    TGT,    be prepared   to   abort   the   start   before limits  are  exceeded.    During  engine start,  the  maximum  allowable  TGT  is 1000°  C  for  5  seconds.    If  this  limit  is exceeded, initiate Abort Start procedure and discontinue start. Enter     the     peak     temperature     and duration on DA Form 2408-13-1. 7. TGT    and     N1     Monitor     (TGT     1000C maximum). 8. Oil pressure Check (60 PSI minimum). 9. ENG    START    switch    OFF    after     TGT peaks. 8-17