H-34 Choctaw/Normal Procedures

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Prestart

  1. Rotor Brake – ON
  2. Anti-collision lights – AS REQUIRED
  3. Cabin lights – AS REQUIRED
  4. All Light Rheostats - AS REQUIRED
  5. Cabin Heater Switch - OFF
  6. Fan Switch - OFF
  7. Pitot Heater Switch - OFF
  8. Windshield Wiper Rotary Switch - OFF
  9. Crew Alarm Bell - TEST
  10. Hoist Master Switch - OFF
  11. Radio Master Switch - RADIO MASTER
  12. Circuit Breakers - IN
  13. Stick Trim Switch – ON
  14. Fuel Shutoff Valve - Open
  15. Mixture Control Lever - IDLE CUT-OFF
  16. Carburetor Air Lever - DIRECT
  17. Clutch Pump Switch - OFF
  18. Servo Switch – ON
  19. Parking Brake Handle - RESET
  20. Tail Wheel - LOCKED
  21. Radios, Radar Altimeter, IFF - OFF
  22. Ignition Switch - OFF
  23. Fuel Booster Pump Switch - OFF
  24. External Power - ON (voltage checked)
  25. Battery-Generator Switch - BATT ONLY (voltage checked) Note: When starting without external power, the battery-generator switch must be in the BATT ONLY position to energize the starter relay and engine primer which are connected to the secondary bus.
  26. Fuel Pressure – Check
    1. Fuel Shut-Off Switch - CLOSED
    2. Fuel Pressure Gage - ZERO PSI
    3. Fuel Shut-Off Switch - OPEN
    4. Fuel Pressure Gage - Check for Fuel Pressure Increase
    5. Fuel Booster Switch- FUEL BSTR PUMP
  27. Clutch Pump Warning Light - TEST
  28. Instr. Pwr. Failure Warning Lights - TEST
  29. Fuel Low Level Warning Light - TEST
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