how do i reverse the servo and esc on my old radio? - RC Groups
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Jul 08, 2001, 10:31 PM
Registered User

how do i reverse the servo and esc on my old radio?

i have an old cirrus six-xl, and i need help finding out how to reverse the esc. it has no reversing switches. is there an internal adj. or switch? or do i have to flip polarity etc. ? please help. i want to fly asap
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Jul 08, 2001, 10:42 PM
Our Daddy and Heli Junkie
Fred Bronk's Avatar
Well first thing Sonic, welcome to the Zone!

You have 2 problems, 1 is the reversing, the 2nd is your radio legal?

If the radio was made before 1991 and has not been "Gold Labled" as narrow band FCC compliant, it is illegal to use. It may cause interference to other pilots who are next to your frequency.

To reverse the throw of the servo, you must reverse the throw of the stick internal. Since you don't have that, see problem #1.

You may get an answer in the Science section, but I still refer you to problem #1.

In all honesty, your best fix "MAY" be a new radio!

[This message has been edited by Fred Bronk (edited 07-08-2001).]
Jul 08, 2001, 10:53 PM
Registered User
i know how to reverse servos(flip the pos. and neg. wires , but i don't know how i can reverse the esc!
Jul 08, 2001, 10:57 PM
Registered User
Where is the "science section"?
Jul 08, 2001, 11:28 PM
Registered User
JTinCT's Avatar
STOP Don't do that you will let the smoke out. By changing polarity you are not just changing the polarity of the motor but also the electronics in the servo. You <font color=red>WILL</font color> ruin the servo!
If nothing else see if you can rearrange the position of your servo, arm or pushrod to work with your setup.
John Tracey

[This message has been edited by JTinCT (edited 07-08-2001).]
Jul 08, 2001, 11:34 PM
Registered User
i found reversal the switches(very well hidden under circit board and wires under the plastic cirrus clamp -on logo). thanks for all the help anyways. and sorry for all the wasted time^-^
Jul 09, 2001, 12:15 AM
Registered User
If you are handy with a soldering iron, just reverse the two outside leads on the pot which your stick drives. This will reverse the direction of the servo.
As above, DO NOT change the leads going to the servo. You can buy an inline servo reverser which I suppose would also work with the ESC. By that time, you would be better off getting a new transmitter, which will make all this easy.
Bob Stewart
Jul 09, 2001, 12:55 AM
Registered User
Mikey_Flies's Avatar
Or you can switch the leads to the motor in the servo, and reverse the two end leads on the pot (use thin wire to do this). Not really recommended but will work in a pinch.