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450 PRO Class Electric Helicopters 450 PRO Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.


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Old 03-06-2011, 03:21 PM   #41
Nefarious
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Awesome. I stripped the gear in some weeds today and remembered seeing this post. Thank to mobile YouTube and your video I had my gear change in 10minutes.
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Old 03-19-2011, 10:56 PM   #42
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thank you.
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Old 03-19-2011, 10:57 PM   #43
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Thank you!
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Old 02-09-2012, 10:26 PM   #44
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Noticed I had a single chipped tooth on the umbrella gear, and changed the bearing the hard way. Ended up not seating right. The method you show makes it much easier. Thanks!

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Old 02-10-2012, 02:11 AM   #45
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alot easier, thank you. y didnt i think of this
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Old 02-11-2012, 05:08 PM   #46
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I have changed my TT gears using this video several times with no issues. This week I changed them out with new gears and after I put everything back together, the gears feel notchy, like they aren't quite meshing together right. I pulled it all apart, put in another new set of gears (both umbrella and the other gear) and same thing... its notchy and makes more noise than I am use to hearing. Any suggestions?
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Old 02-14-2012, 07:41 PM   #47
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I have the black TT...

My gears stripped but the TT didn't shear.
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Old 02-22-2012, 10:52 AM   #48
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Default How abt the rear one?...

Hey Ken & other Guys,
I'm thinking of shimming my rear TT gear to get rid of the sloopynes but I dont knw hw to remove the rear TT gear ...the ones that inside the casing ...properly. Would you mind?
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Old 09-03-2012, 10:38 AM   #49
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Quote:
Originally Posted by aramb View Post
I have changed my TT gears using this video several times with no issues. This week I changed them out with new gears and after I put everything back together, the gears feel notchy, like they aren't quite meshing together right. I pulled it all apart, put in another new set of gears (both umbrella and the other gear) and same thing... its notchy and makes more noise than I am use to hearing. Any suggestions?

i had the same problem with my rear tt gears on the new v2 style tail gearbox, after i installed the new gears i had fouled up the bearings in the tail case attached to the boom block. the gears fit the bearings soooo tight i think i messed up the bearings by applying too much pressure to the gear when installing it. but i see no way around this because u have to geth the bearings in there one way or another. heck withit i just bought a new one .

i would like to know how to replace these gears without messing up the bearings tho???
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Old 09-04-2012, 12:30 AM   #50
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Might try one of these. http://shop.precisionhelitools.com/T...-Press-107.htm
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Old 06-29-2013, 09:09 AM   #51
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I don't think this method will work well with the newer black gears, they're too tight and the side load on the bearings tapping them out like this damages or destroys them. Does anybody have a good method or is the outer bearing a throwaway with the black gears?
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Old 07-15-2013, 09:21 AM   #52
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Quote:
Originally Posted by ken22golf View Post
I just wanted to show the quick trick to transferring the bearings on the front umbrella gear to the replacement
Great video Ken. Thanks

Quote:
But do not do this on say a 600 or 700.
Just answered my question, them bigger ones are really tight on the umbrellas.
Thank you both.

Quote:
You guys all want this as a sticky?
Yes
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Old 07-15-2013, 09:38 AM   #53
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Quote:
Originally Posted by CHIEF-X View Post
i would like to know how to replace these gears without messing up the bearings tho???
A c clamp and deep socket who's outer diameter is equal to the bearings' inner perhaps?

Has anyone tried freezing / lowering the temp on the umbrella gear, heating the bearings and then sliding them in? I'll give it shot, (when they arrive).

Don't know if the plastic will behave the same as metal, as I have done it with the OWB and it just slides into the casing. Once expanded at room temp. has worked flawlessly.
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Old 07-17-2013, 09:02 PM   #54
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Default Update of 600 umbrella gears

Quote:
=Felix the cat;5146750]A c clamp and deep socket who's outer diameter is equal to the bearings' inner perhaps?
A 12mm deep socket worked just fine.

Quote:
Has anyone tried freezing / lowering the temp on the umbrella gear, heating the bearings and then sliding them in? Don't know if the plastic will behave the same as metal, as I have done it with the OWB and it just slides into the casing. Once expanded at room temp. has worked fine.
Tried freezing umbrella gear, didn't shrink like OWB does.
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450 PRO Class Electric Helicopters 450 PRO Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.

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