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View Full Version : L500 3d tail grips - one is a bit loose


AusAnt
10-03-2007, 05:40 PM
I am getting through the build of my new 500 3d - everything seems to be going fairly well so far. I have just assembled to tail, and I have one question.

When I assembled the tail grips onto the aluminium spindle, one of them has a tiny bit of play in it. When I pull the two tail blades away from each other, as if there was centrifugal force from a spinning tail rotor, one of the blade grips moves outwards along the axis by the tiniest amount, probably only 1/4mm or at most 1/2mm, but it is definitely perceptible, whereas the other side is nice and snug, and had enough thread for me to slightly overtighten it, then back it off to be just snug and smooth.

The obvious problem is that maybe I used a wrong part or missed a washer in the assembly of all the washers and bearings that go into that assembly (step 5 on page 5 of the manual). However I pulled apart the loose side and it all appears to be OK. The bolt is as tight as it will go, and it is the correct M2.5 x 6 bolt.

Have I done something wrong or is this normal? I guess if I leave it, the centrifugal force will keep it in the one position, but it just doesn't seem right.

Thanks for your help,

Ant

OICU812
10-03-2007, 05:51 PM
Sometimes on the SS tr hub there can be a slight difference in the OD of the tab, the part where the grip and bearings slide onto. This will create a tiny bit of play. It is no big deal at all, all mine have had this, sometimes and in most cases on both sides. Being they are thrusted this is not a concern, once the rpm is over 1000 they will find true center in rotation, cheers.

AusAnt
10-03-2007, 06:04 PM
Thanks for the reply Shawn,

I kind of hoped it would just sort itself out once rpm got up there, but it is better to make sure :wink:

Thanks again

Ant

miragewsu
10-04-2007, 12:20 AM
same prob in mine both grips were like that. I was told it was fine and so far so good with 20+ flights

AusAnt
10-04-2007, 12:26 AM
thanks miragewsu

OICU812
10-04-2007, 12:45 AM
If you ever get a chance look at Hirobos tail on Freya and Evos, same exact thing, only their have far more play and work 100% as well.

Automan
10-04-2007, 06:11 AM
Both grips on mine, but i figured it was ok, just as Shawn said it will be nothing to worry about.