RCU Forums - View Single Post - ANOTHER RADIO AND SERVO QUESTION

01-09-2006 | 07:05 PM

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shd3920

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From: Pittsfield, MA

ANOTHER RADIO AND SERVO QUESTION

1] When I test the control of the servos I hear a vibrating or humming sound coming from the servos. This usually only happens when I press the transmitter lever all the way in a certain direction (i.e: servo/lever all the way extended to the full down or up of the elevator, extended to the full left or right of the rudder, AND ESPECIALLY the full extent of the throttle either all the way open or closed). The rods and tubes all all straight, unobstructed, and not binding with anything or bending and I have coated them with graphite before inserting the rods into the tubes. The servos are tight in the tray and the tray securely glued to the inside of the fuselage. I tighten the servo screws until the grommets start to compress then loosen the screws about a half-turn just enough not to compress the grommets.

What could be causing the vibrating humming sound from the servos?????

2] I know this has been asked before but I will ask it anyway

: What is the proper order of turning the radio system on and off? Is it transmitter on first and the receiver? Then reversed to turn off?

Thank you in advance.

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