RunRyder - tail rotor noisy

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Graupner Koala-Bell 230-Elektro Skaler > tail rotor noisy

geowhitt
Heliman
Location: leigh gt manchester uk

just bought a tail rotor and it seems noisy, how do i set the tail gear box up, any help please.
many thanks george,

04-19-2006 Over year old.

skypilot 01
Key Veteran
Location: Northumberland UK

Hi George,
What tail rotor is it and what kind of noise is it making.
Regards
Michael

http://www.geocities.com/mick.patterson/home-page.html

04-20-2006 Over year old.

HOMEPAGE

geowhitt
Heliman
Location: leigh gt manchester uk

Thanks for the reply,when i turn the rotor it feels notchy i have stripped it down but i cant see anything wrong, i also have a uni star60 which has the same tail rotor and when i turn that it is smooth not like the other one.
I have been to a web site and downloaded some instructions and i will see what that brings, i might have to shim it up.
Thanks for the reply.

04-20-2006 Over year old.

blackhawk_UK
Heliman
Location: Wilts - UK

Shimming is the way to go !!!!

I made the mistake of not shimming my first one correctly. After 6 - 8 gentle flights, the gears stipped, lost tail rotor, and the rest is history ... £££££££ !!!

When I rebuilt it, I took the time to make sure I got the gear mesh just right. So far 15 flights and all is well, but time will tell !!!!

Matt

04-20-2006 Over year old.

skypilot 01
Key Veteran
Location: Northumberland UK

Hi,
Yep that is what it needs if you take your time with this you should be able to get it super smooth but sometimes it can be necessary to drill another hole in the gearbox to relocate the small screw.
Good Luck
Regards
Michael

http://www.geocities.com/mick.patterson/home-page.html

04-21-2006 Over year old.

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skypilot 01
Key Veteran
Location: Northumberland UK

Hi George,
Let us know how you get on with your tail rotor, Graupner tail rotors are known for being one of the best around.
Regards
Michael

http://www.geocities.com/mick.patterson/home-page.html

05-01-2006 Over year old.

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Heimypilot
Heliman
Location: Hengelo Netherlands

Hi all,

It's a very yes to all gears on graupners. You have to fit and shim all!!! the gears to a perfect fit and it will run for a lifetime. just make it turn smooth but without any play..... I also speak from experience and stripped some tailgears and some maingears because the old manuals weren't clear about this in my opinion.

Regards
Steven

05-16-2006 Over year old.

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tim deakin
Senior Heliman
Location: gloucestershire uk

My tail rotor was realy noisy,so i removed the wire drive and installed a tube drive (my friend stuart did actually) its now perfect.dont be to fussy with the tail meshing as long as it isnt to tight it should be fine!

10-28-2006 Over year old.

skypilot 01
Key Veteran
Location: Northumberland UK

The tail drive mesh is very important with these tail gearboxes.
Using the shims to obtain the correct mesh is essential, if there is too much play the gears may slip which will strip them, if the mesh is too tight the gears will wear very quickly as well as being too stiff to operate properly.
You must use shims to get the proper set-up.

http://www.geocities.com/mick.patterson/home-page.html

10-29-2006 Over year old.

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tim deakin
Senior Heliman
Location: gloucestershire uk

yes i agree it is very very important that the gear mesh is correct on ever part of the graupner mechs especialy the tail,and i should not have been so flippant with my comments.But i must add that i spent a whole day shiming and aligning the tail gear box on my bell to get perfection, only to find that on the test flight the tail box blew up!!!!!! my next box had no shims and took aprox 30 mins to build.80 flights later and it is still fine?? I'VE NO IDEA WHY

10-29-2006 Over year old.

skypilot 01
Key Veteran
Location: Northumberland UK

Sorry Tim I didn't mean to make my post sound like you had been flippant.
Everytime I have built up a Graupner gearbox I've had to use shims in order to get smooth operation but I'm pleased that yours is running ok.

http://www.geocities.com/mick.patterson/home-page.html

10-31-2006 Over year old.

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kshaw2154
Senior Heliman
Location: Atlanta, Ga. USA

Could I ask if anyone has a part# for a complete tail rotor assembly?
Thanks,
Keith