22E jerky tail
07-04-2009, 07:11 PM
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22E jerky tail
I have a Walkera 22e with Walkera brushless ESC and brushless motor. It used to work well. Now, at any throttle setting, the tail motor speed pulses and the heli is so eratic I cannot fly it. If I disconnect the brushless motor but leave both the RX and ESC powered up, the pulsing stops. I can't figure outwhether the problem is in the RX, in the ESC, or in thebrushless motor. Help!
07-04-2009, 08:00 PM
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RE: 22E jerky tail
Before the tail jerking.
Did you have a crash ???
Did you have a 3 AMP ATO Fused installed between the Rx and tail motor input ???
Did you check the meshing of the tail gear to thetail rotor gear ???
The typical tail motor will last about 30 flights on average and maybe that is a sign the motor maybe failing.
Try this first, add more tail power by adjusting the tail gain. Additionally, if you are getting tail jerking, the gyro gain is too high and adjust to the "-" on the Rx with the power off.
Did you have a crash ???
Did you have a 3 AMP ATO Fused installed between the Rx and tail motor input ???
Did you check the meshing of the tail gear to thetail rotor gear ???
The typical tail motor will last about 30 flights on average and maybe that is a sign the motor maybe failing.
Try this first, add more tail power by adjusting the tail gain. Additionally, if you are getting tail jerking, the gyro gain is too high and adjust to the "-" on the Rx with the power off.
07-05-2009, 09:58 AM
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RE: 22E jerky tail
I did have a crash. I have no fuse. the tail gearing is smooth and easy. The tail motor pulses only when the main brushless motor is connected.
Of the two screw adustments on the RX, which is for gyro gain, and which is for tail gain. I have adjusted and re-adjusted the lower screw. The tail motor will go faster or slower, but still pulses.
Of the two screw adustments on the RX, which is for gyro gain, and which is for tail gain. I have adjusted and re-adjusted the lower screw. The tail motor will go faster or slower, but still pulses.
07-05-2009, 02:31 PM
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RE: 22E jerky tail
Try a new motor. If it still pulses, then the Rx might have been damaged from the crash. They don't tell you, but you really need a 3 amp ATO Fast blow fuse for the tail motor. It also doesn't hurt to have a line filter installed bwt the Rx and tail motor. If you install the new tail motor and still get pulses, then I believe you have a damaged Rx. Which is unfortunate. A new Rx is about $45(USD) almost half the heli cost. If however, the new motor solves our problem, then going forward, you can check out the mods from the video below. An ounce of prevention goes a long way. Install the fuse and install the line filter to supress more of the glitches.
[youtube]http://www.youtube.com/watch?v=u4pdlMgfP08[/youtube]
07-06-2009, 07:27 PM
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RE: 22E jerky tail
Thank you for the good information. The new tail motor does not do the job, so I guess if I want to continue with the 22E, I need a new receiver.
Can you tell me where I should look to purchase a fast blow fuse and a line filter. I have not seen them in the online stores I visit.
Can you tell me where I should look to purchase a fast blow fuse and a line filter. I have not seen them in the online stores I visit.
