micro cx spinning after replacing parts?

HeLiJerSey · 08-22-2009, 08:47 PM

my friend crash his micro cx and replaced the parts but the as soon as he his the throttle the heli spins like a mad man. could it be the 3 in 1 gone bad.

primestick · 08-24-2009, 05:25 AM

check the blades make sure there spinning in the right direction and theres no binding.

HeLiJerSey · 08-24-2009, 09:05 PM

yes there are going the right way. i think the esc gyro combo went bad.

heli-gunner · 08-31-2009, 09:34 AM

mine is doing the same thing. I replaced the board but top rotor spins as soon as you plug the battery in.

JHS1 · 09-02-2009, 11:09 AM

Change your motors because one is fried. It can't spin the associated rotor as fast as its mate. One spinning faster, one spinning slower = heli spins. Which direction does it spin?

EDIT: Actually it doesn't matter which way it spins. Probably best to replace both motors.

EDIT AGAIN: The other alternative is that one of the motors got plugged in backwards during reassembly after repair. Check to make sure both main rotors spin in their proper (opposite) directions.

Then change the motors.

axecx · 09-05-2009, 11:41 PM

It could have tweaked the trim pot on the board. one is gain and the other is left right adjustment. It could be either one, but if you cant use the controller to stop the spinning it is probably the gain which i think is the front pot. If you suspect a motor is bad you could swap the front and back wires on the board and it will keep spinning the same way if one of the motors is shot. I have three of these heli' hope this helps

08-22-2009, 08:47 PM	#1
HeLiJerSey Join Date: Dec 2008 Location: Bergen County, NJ	micro cx spinning after replacing parts? my friend crash his micro cx and replaced the parts but the as soon as he his the throttle the heli spins like a mad man. could it be the 3 in 1 gone bad.

08-24-2009, 05:25 AM	#2
primestick Registered Users Join Date: Nov 2008 Location: columbus	check the blades make sure there spinning in the right direction and theres no binding. __________________ Outrage G5 Trex 500

09-02-2009, 11:09 AM	#5
JHS1 Registered Users My HF Map location Join Date: Jun 2009 Location: SoCal	Change your motors because one is fried. It can't spin the associated rotor as fast as its mate. One spinning faster, one spinning slower = heli spins. Which direction does it spin? EDIT: Actually it doesn't matter which way it spins. Probably best to replace both motors. EDIT AGAIN: The other alternative is that one of the motors got plugged in backwards during reassembly after repair. Check to make sure both main rotors spin in their proper (opposite) directions. Then change the motors. Last edited by JHS1; 09-02-2009 at 04:53 PM..

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08-24-2009, 09:05 PM	#3
HeLiJerSey Thread Starter Join Date: Dec 2008 Location: Bergen County, NJ	yes there are going the right way. i think the esc gyro combo went bad.

08-31-2009, 09:34 AM	#4
heli-gunner Registered Users Join Date: Aug 2009 Location: Macomb, MI	mine is doing the same thing. I replaced the board but top rotor spins as soon as you plug the battery in.

09-05-2009, 11:41 PM	#6
axecx Registered Users Join Date: May 2009 Location: St Louis	It could have tweaked the trim pot on the board. one is gain and the other is left right adjustment. It could be either one, but if you cant use the controller to stop the spinning it is probably the gain which i think is the front pot. If you suspect a motor is bad you could swap the front and back wires on the board and it will keep spinning the same way if one of the motors is shot. I have three of these heli' hope this helps