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Helicopter
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Align
Other › tail/boom vibration
05-05-2005 08:52 PM  12 years agoPost 1
Skycat

rrApprentice

San Gabriel, CA

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I replaced the tail gear case screws with allen head screws last night. Now the tail vibrates a lot.
Then I removed the tail blades and spun it up, the vibration was gone.
The tail case was a little bit warm after a few minutes of hovering. Is that normal?
What could be the problem? I did disassemble the whole tail and rebuild it. That improved a little bit but the vibration is still there.
I also tried with a new set of tail blades and it's the same.

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05-05-2005 09:34 PM  12 years agoPost 2
Raptorsoup

rrNovice

Grand Bay, Alabama USA

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Yeah, I second that. Those bearings are poor quality. Mine became "notchy" after just a few flights. I replaced my main shaft bearings with quality Japanese units and it's much better. Eventualy I'll replace the tail bearings as well.

Sounds like the bearing(s) is creating a lot of heat due to the friction.

Tim.

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05-05-2005 10:40 PM  12 years agoPost 3
JYRiker

rrApprentice

Maryland - USA

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Make sure you didn't tighten the one that holds the tentioner wheel too much where it stops it from turning... That would cause heat build up... Don't ask how I know

Johnny

HeliUp Frame Trex 450
CF Trex 600
CF Trex 500

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05-05-2005 10:48 PM  12 years agoPost 4
Raptorsoup

rrNovice

Grand Bay, Alabama USA

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Pathogens,

I got 'em from Wes at Modefo's. $5.99/set.

Tim.

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05-06-2005 12:42 AM  12 years agoPost 5
Skycat

rrApprentice

San Gabriel, CA

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I only saw the High Precision Main Shaft Bearings on Modefo's. Where do get the upgraded tail bearings?

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05-09-2005 02:04 AM  12 years agoPost 6
tiny-flyer

rrApprentice

Houston, Texas USA

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So do I need to replace or upgrade my bearings?

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Helicopter
e-
Align
Other › tail/boom vibration
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