randomTOTEN Posted November 21, 2020 Posted November 21, 2020 How do I operate these controls? pg. 69 "5.1.4. Left Side Console" lights #2 and buttons #19. They are not discussed anywhere else in the manual. Pressing the buttons doesn't appear to change anything, or illuminate the associated lights. The lights will only illuminate during a light test (pg. 68 switch #9). :music_whistling: If they are inop, what is the intended operation? Thanks EDIT: Just tried an instant action, and the controls seems to function. I can't get this to work when I perform a manual start. Will investigate.
randomTOTEN Posted November 23, 2020 Author Posted November 23, 2020 Update here. It appears that the annunciation illuminates (with button press) only when power is applied to the engines. At light weights even hover torque isn't enough to trigger this. Since they are test circuits for the temperature regulators.. I'm assuming that the trigger is temperature based.. i.e. the EGT must be above some limit for the test to function?
snake11 Posted December 4, 2020 Posted December 4, 2020 With these buttons you test the FCU temperature limiter, what they do is lower the limit parameter so that the limiter works without reaching a temperature that puts the motors at risk. You can check it by testing first, put the helicopter at its maximum take-off weight with high ambient temperature (35C) at take-off, check the light of the temperature limiter to a parameter and then do it by pressing the test buttons and you will see that the limiters enter at a lower temperature parameter sorry my english is not so fine
Recommended Posts