SERVO!! problems

[japetheape]

I recently rebuilt my cen ct5's motor. I had to do this because i had left it sitting for so long. The engine is running great, but I'm having problems with the steering and throttle servos. The steering servo stays left or right after i turn and i have to then turn in the opposite direction to straighten the car out. Also, when i hit the throttle, the throttle stays open until i hit the brakes a little, or the brakes stay on until i hit the throttle again. Are my servos bad? and if they are is this repairable? or is the car's reciever acting up and i should get a new one?

Thanks for any help!!
-jape

 

[cwest3355]

I recently rebuilt my cen ct5's motor. I had to do this because i had left it sitting for so long. The engine is running great, but I'm having problems with the steering and throttle servos. The steering servo stays left or right after i turn and i have to then turn in the opposite direction to straighten the car out. Also, when i hit the throttle, the throttle stays open until i hit the brakes a little, or the brakes stay on until i hit the throttle again. Are my servos bad? and if they are is this repairable? or is the car's reciever acting up and i should get a new one?

Thanks for any help!!
-jape

There mat be a problem with the potentiometer idk how to spell it lol but thats what i think

 

[Metalhead Matt]

Check out the settings on the transmitter and make sure the linkages aren't getting over extended, causing a binding issue. It's weird that both the steering and the throttle are doing the same thing.

 

[Scrogg]

Pull servo arms off, they sound like they have stripped out.

 

[japetheape]

Thanks for the replies.

Scrogg, pardon if this is a stupid question lol, but by stripped do you mean the arm no longer fits snug on the servo gear? cause if thats what you mean i checked and its fine.

Idk what a "potentiometer" is lol, so i guess ill go ahead and check the linkages and post back.

thanks again guys,
-jape

 

[Scrogg]

Yes, you are correct. You have some gremlins in there. good luck finding them!

 

[hamz9561]

A potentiometer is a variable resistor inside of the servo that tells the electronics in the servo the position of the servo arm.

 

[japetheape]

All the linkages seem fine. If it is the potentiometer is there any fix or should i buy a new servo?

I can't help but think it may be a reciever problem though. Cause sometimes the servos will twitch when I'm not even thouching the remote, what do you guys think?

Thanks again for the replies!

-jape

 

[Metalhead Matt]

Could be your receiver. Wouldn't hurt to try one.

 

[japetheape]

Yeah i was putting off trying a new reciever because since I'm pretty new to RC i dont have any other recievers lying around, so i'd have to go out and buy one. Just bieng a cheapo. I'll try a new one though.

 

[cwest3355]

potentiometer should be fairly easy to get to but donot touch the contact on the inside the oils on your skin can affect it but clean off the potentiometer with a cloth on the inside of it there will be metal tabs on the out side you lift up so you can get inside of it

 

[hamz9561]

You can replace the potentiometer, but it's a lot easier to just replace the servo.

 

[Metalhead Matt]

The Cen servos probably aren't that great anyways. Might be a good idea to pick up both if funds allow. Look at high tech servos.

 

[Scrogg]

Go to radio shack and pick up another set of Radio crystals. Make sure your crystals are pushed in their slots firmly. A loose or broken crystal will cause all kinds of problems.
Amen for 2.4ghz!