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Home✈️Aircraft🚁HelicopterHelicopter Main Discussion › Logo 690 tight mesh issue
11-29-2019 04:38 AM  17 days ago
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awsomechoppers

rrApprentice

Pfafftown, NC

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Logo 690 tight mesh issue
I recently crashed my 690 and while putting it back together I noticed my gear gets loose and tight all around the gear. I put in a new main shaft, both main bearing, the main gear wasn't hurt in the crash. If I have my mesh loose or tight when I turn it the tight spots are still there. I took the pinion off and spooled it up and couldn't tell if I saw a slight wobble.

I'm thinking the motor shaft may be a little bent but anything else I could check?
RIP Roman
Team Mikado USA - Team OptiPower USA - Team Ninja
Logo 600SE/690SX, Vcontrol
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11-29-2019 04:52 AM  17 days ago
Heli Fanatix

rrVeteran

Fountain Valley, CA

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The main gear itself is not perfectly true. There will be high & low spots. Its ideal to find the high spot and butt up the pinion right up against it. Take care when we tighten to motor mount that it doesn't move pinion out or in.

After time, the motor bearings will go aswell as motor shaft being worn around the motor bearings itself [most likely]

FYI
We still fly with .7 MOD main gear with no counter bearing support on 5mm motor shaft. This is why it was upgraded to MOD 1 main gear and 6mm motor shaft with counter bearing support shaft, to make it more durable.

Hope this helps.
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11-29-2019 12:10 PM  17 days ago
JuanRodriguez

rrProfessor

The Villages, Florida

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💎Sustaining Member
If all was ok before the crash and now you have this issue, I would agree with you that the motor shaft could be tweaked....Been there, done that and old enough to know better.....
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