RunRyder - Whose Flying Their AVANT this weekend??

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Avant Aurora - EFX - FX > Whose Flying Their AVANT this weekend??

RussR
Senior Heliman
Location: Tampa, Florida

check your orientation of the bearing blocks - the instructions tell you which way the 'dimple' in the bearing block should face - backwards for the correct mesh in the maingear.

04-12-2005 Over year old.

Garry-Boy
Key Veteran
Location: Moscow, Russia

Quote
After changing there is a lot of play between the main gear and the pinion. Is this normal for this gear ratio?

No it should be smooth as silk, check the orientation of the bearing blocks.

Garry.

04-12-2005 Over year old.

Augusto
rrAdvertiser
Location: San Diego, CA

Aziego,

You mentioned you changed to an 11T pinion but you didn't mention that you changed to the 93T main gear. If you didn't then you need to do that.

Augusto.

Avant Aurora Ultimate

04-12-2005 Over year old.

Aziego
Heliman
Location: New Jersey

Thanks Augusto. You are right I did not change the main gear. Thought all I needed was to change the pinion. Will order the main gear.

04-13-2005 Over year old.

mrNoodles
rrProfessor
Location: Borlänge, Sweden

Divide the number of teeth on the maingear with the number of teeth on the pinion to calculate the gear ratio.

95/12=7.92
93/12=7.75
93/11=8.45

And so on

04-13-2005 Over year old.

HOMEPAGE

Garry-Boy
Key Veteran
Location: Moscow, Russia

+
97/12=8,08

Garry.

04-13-2005 Over year old.

RussR
Senior Heliman
Location: Tampa, Florida

Avant vibration

I've been flying mine for a while and it recently developed a bad vibration. I changed all of the usual things:

Tail hub, shaft, blades, main blades, spindle, grips, thrust bearings, dampers, etc. Well, I found out the culprit to be a bent main hub!

Another thing to remember - the lower main bearing block is directional, and should be installed with the opening facing DOWN. If not, it will not support the main shaft ( ask me how I know!)

If you dial indicate and balance everything when building, this is one smooth machine!

PS - Once again thanks to CX and Augusto for great product support.

Russ

04-13-2005 Over year old.

I3DM
rrProfessor
Location: Israel

Russ, a bent main hub isnt out of the ordinary.. unless it bent on its own while flying..

Team pilot for Radix, Helidirect, Logictech, ThunderPower, Fromeco, Gaui
www.liorzahavi.com

04-13-2005 Over year old.

HOMEPAGE

RussR
Senior Heliman
Location: Tampa, Florida

Bent Main Hub

I Agree - Except I should have started there! Lesson learned....

I agree it should be one of the first items checked on a Hirobo machine...

RUss

04-13-2005 Over year old.

Tyler
Key Veteran
Location: Chicagoland area

Are you referring to the main head block, the blue metal head block? I have a crashed one, and wonder how to determine if it is bent. I do know the spindle needed to be hammered out, as it was bent severely.

Tyler

04-13-2005 Over year old.

I3DM
rrProfessor
Location: Israel

Tyler he meant the hub, thats the piece that connects the main shaft to the head yoke (the piece youre reffering to).

Team pilot for Radix, Helidirect, Logictech, ThunderPower, Fromeco, Gaui
www.liorzahavi.com

04-13-2005 Over year old.

HOMEPAGE

Garry-Boy
Key Veteran
Location: Moscow, Russia

The hub is the pain in the ass part for checking whether it is bent or not!
And it is very easy to bend it....much easy than you could imagine!

Garry.

04-13-2005 Over year old.

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Avant Aurora - EFX - FX > Whose Flying Their AVANT this weekend??

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