TM 1-1510-223-10 Change 3          8-3 CAUTION Do not cycle LDG GEAR CONTR handle on the ground. * 7.   Gear — DN. * 8.   Keylock switch — ON. * 9.   Weather radar — OFF. 10.   Fuel pumps/crossfeed operation — Check as follows: a.   FIRE PULL handles — Pull. b.   STANDBY PUMP switches — ON. c.   BATTERY switch — ON. d.   #1 and #2 FUEL PRESS warning annun- ciators — Illuminated. e.   FIRE PULL handles — In. f.   #1 and #2 FUEL PRESS warning annun- ciators — Extinguished. g.   STANDBY fuel pump switches — STAND- BY PUMP. h.   #1 and #2 FUEL PRESS warning annun- ciators — Illuminated. i.   Crossfeed — Check system operation by activating   switch   momentarily   left   then right, noting that #1 and #2 FUEL PRESS warning annunciators extinguish and that the FUEL CROSSFEED advisory light illu- minates as switch is energized. CAUTION During ground operation, the ice vanes shall be extended  to  minimize  foreign  object  damage (FOD) to the engine. * 11.   ICE VANE CONTROL switches — Set as fol- lows: a.   ICE VANE POWER SELECT switches (2) — STBY. b.   ICE  VANE  CONTROL  switches  (2)  — OFF. * 12.   BATTERY switch — ON. * 13.   Lighting and anti-ice/deice systems — Check as   required.   Check   shall   include   position lights,   recognition   lights,   landing/taxi   light, wing ice lights, beacons, emergency lights, pi- tot   tubes,   heated   fuel   vents,   stall   warning vane,  true  airspeed  temperature  probe,  and interior  lights,  then  off.  Check  ice  vanes  re- tracted. NOTE The EMERGENCY lights override switch should be placed in the TEST position and the emer- gency lights (5) checked for illumination and in- tensity. A dim light indicates a weak battery pack. At the completion of the check, the switch must be cycled from the TEST position to the OFF/ RESET position and then placed in AUTO. * 14.   FUEL gages — Check fuel quantity and gage operation. 15.   HYD  FLUID  SENSOR  TEST  switch  —  De- press. Check HYD FLUID LOW annunciator light  illuminates  after  approximately  2  sec- onds, and extinguishes after approximately 6 seconds. 16.   Engine fire protection system — Check as fol- lows: a.   ENG    FIRE    TEST    switches    —    Hold switches to DET position, check that FIRE PULL handle warning annunciators, and MASTER WARNING annunciators illumi- nate. b.   ENG    FIRE    TEST    switches    —    Hold switches   to   EXT   position,   check   that SQUIB OK and EXTGH DISCH annuncia- tors, and MASTER CAUTION annuncia- tors illuminate. NOTE If  MASTER  WARNING  is  cancelled  between tests, it may not re-illuminate. 17.   Stall  and  gear  warning  system  —  Check  as follows: a.   STALL   WARN   TEST   switch   —   TEST. Check that warning horn sounds. b.   LDG GEAR WARN TEST switch — TEST. Check that warning horn sounds and that the LDG GEAR CONTR handle warning lights illuminate. 18.   GPU — Check connected and DC voltage if steps 19 through 25 are to be performed.