4-12 ENSTROM 280FX OPERATOR’S MANUAL
FAA Approved: Mar 12/19 Rev. 12
Report No. 28-AC-020 Dec 3/18
4-7. Starting Engine
NOTE
If a headset is in use, it is recommended to
remove the headset during this sequence to be
able to hear the engine.
1. Collective down and locked.
2. Master switch ON.
3. Annunciator panel – press to test – all lights should be
on when button is pushed.
4. Alternator switch ON (OFF for APU start).
5. Starter relay switch/CB ON.
6. Trim motor switch ON or CB IN.
7. Throttle open (full).
8. Mixture control full rich.
9. Boost pump ON (1-8 seconds).
NOTE
The length of time the boost pump is run depends
upon the temperature of the engine. If the engine
is cold soaked in cold temperatures, it may
require 8 seconds or more. If the engine has just
been run, it may require one second or less.
10. Boost pump OFF.
11. Mixture control to idle cutoff (ICO).
12. Throttle closed. Then open to start position (i.e., index up).
Reference Section 7, “Aircraft and Systems Description”.
CAUTION
Excessive throttle opening on starting will result
in an engine overspeed which results in severe
engine damage.
This electronic document is not linked to a subscription for revision control or distribution. Refer to theTechnical
Publications Status link under the Technical Support Page of the Enstrom Helicopter website for the current revision
level of the 280FX Rotorcraft Flight Manual.
UNCONTROLLED COPY WHEN DOWNLOADED OR PRINTED
To Next Page
Loading...
