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HelicopterCentury Radikal G20-30 N640 Hawk Predator › drive gear rubbing main gear
12-27-2008 03:53 AM  8 years agoPost 1
falcon7

rrNovice

bethany, louisiana ​ usa

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Hey guys,have a question.i'm assembling a new hawk pro.when turning the counter gear on the upper frame assembly i felt some rubbing. closer inspection revealed the top of the drive gear rubbing the bottom of the main gear.disassembled everything,loosend the set screw on the drive gear and slid it down on the counter drive shaft a little,but when i put it back in the frame the 2 spacers would not allow it to go down far enogh.well,the instruction manual says 2 m5x7 spacers in this area,being 2 spacers the same size.one of the spacers is longer than the other,witch leads me to believe that one is the wrong size and thats why i cant get the proper clearence from the drive gear to the main gear. anyone else had this problem?

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12-27-2008 05:44 AM  8 years agoPost 2
Blade_Master1

rrElite Veteran

Canada

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I have seen diferrences in the spacers size (thickness)
Remove the thinnest of the 2
also make sure the counter gear isn't rubbing on the frame if it does use the thinnest spacer between the gear and the frame.

sounds like you got a spacer from the CTD by mistake

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01-08-2009 06:22 AM  8 years agoPost 3
ply2win

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Orlando, FL

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I also have this exact same problem with my Hawk Pro. I tried removing the smaller spacer but then there was too much play in it when I put it back together.

I'm thinking it might be okay to just leave it the way it is. Does anybody else have any thoughts on this?

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01-08-2009 06:07 PM  8 years agoPost 4
kenb

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cloquet, minnesota ​ carlton

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gears rubbing

Grind the taller spacer down a little. maybe too about the same size as the shorter one. this should fix the problem. Ken

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HelicopterCentury Radikal G20-30 N640 Hawk Predator › drive gear rubbing main gear
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