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Thunder Power RC . Mikado Modellhubschrauber . Futaba-RC

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Century Hawk - 50NX - Raven - Predator > cut Head Dampers on my Hawk V2
 
 
the Wasp
rrProfessor
Location: Vt

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About 4 week ago I greased my Head Dampers with Dielectric Grease, it worked good, or maybe to good !!,,, well, last week I noticed every once and a while I would see my Hawk V2 make a round circle movement (or letter O) with it's nose, and this week it's doing it more !!,,, well, I notice my Head Dampers are cut, so I took them off and what I found was the Dampers are cut where they meet the Head Block opening, the edge on the Head Block is sharp on the inside where the two meet,,, and where the washers meet the Dampers the Dampers have bad ware marks on them,,,,,,,,,, at first I was thinking it was the Dielectric Grease fault , but as I'm writing this I remembered that I did have some ground strikes with the main blades when I crashed, so this must be when I got the cuts in my dampers,,, what do you guys think ?!?!



Jim
07-10-2002 Over year old.
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bhelisN6
Heliman
Location: Fremont, California

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I generally only replace the head dampers once per year. Upon inspection of a year's worth of flight, there is a marring of the surface where the washer sits between the ball bearing.

I have not knowledge of Dielectric grease however the rubber material is sensitive to any type of grease that contains a solvent. What you are describing is a softening of the dampers which will accelerate the wear.

Best to replace the dampers and only use a few drops of Triflow lubricant when assembling the feathering shaft. I do use a bike grease called Superlube, it is silicon based and works equally well.

Andrew
07-19-2002 Over year old.
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Boca Bearings . XHELI.COM . Autography FlightPower

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Century Hawk - 50NX - Raven - Predator > cut Head Dampers on my Hawk V2
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