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T-REX 250 › Gear Glue woes...
06-08-2012 03:21 PM  6 years agoPost 1
helo1

rrNovice

south florida

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On the Trex 250, the pinion gear is glued on with some sort of mounting liquid.
Mine broke loose, and now the stuff won't even cure.
Anyone have this problem? What to do about it?

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06-08-2012 07:33 PM  6 years agoPost 2
jschenck

rrProfessor

La Vista, NE.

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what are you using? I've used red or green loctite without problems. how long are you letting it sit? Does the pinion fit pretty tight on the motor output shaft?

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06-08-2012 11:37 PM  6 years agoPost 3
gmcullan

rrKey Veteran

Southbridge, MA

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Both the motor shaft and pinion need to be clean and oil free. Then use green Loktite. Holds great but still allows you to pull the pinion if you need to. Red Loktite will hold great too, but you'll have to heat the pinion to break the glue joint.

Gerry Cullan,
Gaui 200, 255; T-Rex 250, 450 SE & SA, Mini-Titan, Blade 450

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06-09-2012 08:54 PM  6 years agoPost 4
dkshema

rrMaster

Cedar Rapids, IA

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If your 250 kit came with a small bottle of the green R48, that stuff works well. Clean the shaft and the hole in the pinion well, use a small amount of the green stuff on the shaft, then install the pinion, give it a slight twist to distribute the material well, and give it a day to cure.

-----

If you're using "green loctite" that you purchased, beware to read the packaging. Some of the "green loctite" won't cure in this application, some will, as some is simply thread locker, while the other may be designed for bonding shafts and gears to each other. It's dependent upon who made the stuff and its purpose.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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