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HelicopterBeginners Corner › rotating parts inspection after crash
08-07-2011 10:08 PM  6 years agoPost 1
arizonaheli

rrNovice

Goodyear, Az

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Ok, we had a mishap this morning and aside from the obvious parts damage, blades and flybar, some of the other rotating parts may need replacing too.

I removed the blades and used an allen wrench to turn the feathering shaft and it appears to be ok, the blade grips do not wobble at all. But I did power up the motor slowly and it appears the button on top of the rotor head does not spin true. The main shaft is definitely not bent. My question is does the button on top rotate true to the mainshaft centerline on your machines? (I have a Blade 450) Is it common for the aluminum rotor head to get damaged?

I inspected the tail assembly and it appears ok, it had no ground impact.

My other concern is with the main and autorotation gears, the lower autorotation gear has a slight wobble to it, this may be somewhat normal huh?

Your thoughts?

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08-07-2011 10:16 PM  6 years agoPost 2
superjoe83

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Redland, OR

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how do you know for sure that the main shaft is not bent? and yes, it is possible to bend the head block, make sure the mainshaft is not bent, or just replace it, and see if the head still wobbles, if so you need a new head block

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08-07-2011 10:19 PM  6 years agoPost 3
arizonaheli

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Goodyear, Az

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I powered up the motor without the blades and it appears to spin true. I suppose I could replace it anyways, they are only a few bucks.

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HelicopterBeginners Corner › rotating parts inspection after crash
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