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T-REX 450 › tail output shaft pulley
02-06-2008 02:53 AM  10 years agoPost 1
JeepCJ

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Pennellville NY (Syracuse Heli Group)

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What is the easiest way to remove the metal pulley from a tail output shaft? Does it press out? Can't seem to get it to buge.

Bob

Team Synergy/ Team Scorpion

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02-06-2008 02:55 AM  10 years agoPost 2
LoveMyTrex

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Hamilton,VA

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I dont think you can, why would you?

600N 55HZ/SAB-55 600V's
700N 91HZ/SB-20 690V2 V's
90SG 91HZ/SB-20 710V2 V's

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02-06-2008 02:58 AM  10 years agoPost 3
LoveMyTrex

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Hamilton,VA

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and if you need to remove it I would try using a vise, find something thats the correct diameter and press it off

600N 55HZ/SAB-55 600V's
700N 91HZ/SB-20 690V2 V's
90SG 91HZ/SB-20 710V2 V's

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02-06-2008 03:06 AM  10 years agoPost 4
JeepCJ

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Pennellville NY (Syracuse Heli Group)

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I tried pressing it off, but the side of the aluminum pulley looked like it was going to get distorted. Mabye some heat on it.

the reason I want to, is because of a bent output shaft, and the replacement comes with a shaft with pulley, and two spare shafts, must be a good way to do it.

thanks
Bob

Team Synergy/ Team Scorpion

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02-06-2008 03:15 AM  10 years agoPost 5
GyroFreak

rrProfessor

Orlando Florida ...28N 81W

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Place it in a vise (shaft down, pulley on top to allow vise to back the pulley), close the vise until it just touches the shaft, back it off a tiny amount. Then find a pin punch, it's a hardened punch with a diameter less than the tail rotor shaft, drive the shaft out with a small hammer.
You can try a nail but it may bend to quickly. Cut the nail as short as you can and still hold it with needle nose pliers (with some sticking out) and use that, making longer ones as the shaft begins to slip in the gear. Use a dremel cutoff wheel to cut the nail (wear eye protection !!)

I think about the hereafter. I go somewhere to get something, then wonder what I'm here after ?

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02-06-2008 03:16 AM  10 years agoPost 6
Tony Whiteside

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Shepherdsville, KY US

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save your self a headache
and just get new ones i think they are about 6or7 bucks for two ready to go.i have been where your at with trying to do that its just not worth the problems,more than likely you will not get it on there with out some kind of problem,its not the way to go.

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02-06-2008 04:37 AM  10 years agoPost 7
jhamlinjr

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Milledgeville, GA, United States

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I change them out too. I have a socket in my toolkit that is small enough for the pulley to sit on with the shaft dropping down through the socket. I use anything I can find that will hold up to a few strong taps (usually the bent shaft that I bend back straight) and tap it out. Never failed me yet.

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02-06-2008 11:01 AM  10 years agoPost 8
TomRex

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West Palm Beach Join Date: 12-28-2005

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Why use an align tail shaft?

Ignorance is the absence of facts.Stupid is lacking the intellectual capacity to comprehend the fact

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02-06-2008 11:33 AM  10 years agoPost 9
JeepCJ

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Pennellville NY (Syracuse Heli Group)

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I was interested in the output shaft and pulley, not the drive pulley and shaft. Unless I was missing something in the pic.

Bob

Team Synergy/ Team Scorpion

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02-07-2008 07:43 PM  10 years agoPost 10
alwallash

rrApprentice

Morgan Hill, CA (near San Jose)

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Jeep,
I have used a pinion puller.
Important tool to have.

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02-07-2008 07:47 PM  10 years agoPost 11
JeepCJ

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Pennellville NY (Syracuse Heli Group)

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Never even gave that a thought!

Thanks!
Bob

Team Synergy/ Team Scorpion

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02-07-2008 08:16 PM  10 years agoPost 12
kingair

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Utah - USA

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I'm so disappointed that people are trying to discourage you from replacing the pulley on your tail shaft, one of the easiest things in the world to do. I wouldn't start out with hammering the shaft with a punch initially. Get a deep 1/4in drive socket, put the tail shaft in the socket and squeeze it gently in a vise until the vice jaw bottoms on the pulley. At this point the pulley is quite a way off the spines and can easily be tapped out with a punch and a light touch with a small hammer. A pinion puller is a good option but this works just as well every time if you don't already have a pinion puller. You can reinstall the pulley in a similar way. Easy as pie, good as new, no reason to not do it.

There is a very fine line between "hobby" and "mental illness."

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02-07-2008 09:11 PM  10 years agoPost 13
exbritflyer

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Sykesville, Maryland, USA

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I used my ball link pliers!

They fitted nicely around the pulley, with the "pin" of the pliers sitting over the end of the shaft. A gentle squeeze and it was (mostly) removed. It was easy then to just tap the shaft out.

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02-07-2008 09:33 PM  10 years agoPost 14
Tony Whiteside

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Shepherdsville, KY US

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well not trying to be a jerk here but check this out.
you can buy two with the pullys on there ready to go for7.99,or you can buy three shafts with one pully for 7.99,but remember you make one oops you will be ordering again.there is not much savings +your time in doing this, and if you put your heli in at the park or at a event dont forget your vice,your puller,you socket,your hammer,your punch,ect ect ect,but if you just have this stuff laying around and dont need to order for nothing why not you dont have nothing to lose anyway.but i will tell you this by the time you get your tools out i will have mine a part and putting it back togetter and soon will be flying,but to each there own.
Happy flying and take care
Tony

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02-07-2008 10:03 PM  10 years agoPost 15
kingair

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Utah - USA

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you make one oops you will be ordering again
There's no oops about it. You only need about 3 brain cells to do this. A guy ought to be able to make repairs on his own. This thread it for a guy who has the package of extra tail shafts. We're helping him out. No reason to toss his extra shafts for the sake of a monumentally easy repair. Buy the ones already put together for the field went you don't have the tools to make the repairs. Save a few cents at home and do the repair yourself. The whole process takes like 64.53 seconds, I can live with that!

There is a very fine line between "hobby" and "mental illness."

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02-07-2008 10:35 PM  10 years agoPost 16
Tony Whiteside

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Shepherdsville, KY US

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if read what i said,
if YOU have them laying around then why not,oh i only have 2 brain cells so im fu@ked. but the two i got are smart anuff to tell me to not pack all that crap around for a T-rex 450

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02-07-2008 10:45 PM  10 years agoPost 17
kingair

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Utah - USA

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Ahh, do um ahead of time and your set. Then ya don't need the tools.

There is a very fine line between "hobby" and "mental illness."

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02-07-2008 10:57 PM  10 years agoPost 18
Tony Whiteside

rrKey Veteran

Shepherdsville, KY US

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oh,you got me NOT
the pack only comes with one pully but he could have two if he does not mess the first one up.not every body has these tools laying around like we do,and i only tryed it one time and the pully tryed to pull apart just a bit,so i tossed it,so you tell me you are on your very first pully that came with you heli.i just could not think so we are talking about align parts here now.

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02-07-2008 11:07 PM  10 years agoPost 19
kingair

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Utah - USA

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Actually, I've never damaged a pulley tearing it apart. I have several laying around in the ol' spare parts bag and one has got to be an original. Never really had to push that hard to get it apart. I like installing the pulleys for another reason that doesn't apply to this thread but I'll share anyway. You can offset the pulley just a little towards the short end of the tail shaft which allows you to center the slider on the long part and still have it so the gyro is neutral in rate mode. Kind of gets rid of that annoying non symmetrical endpoint syndrome and allows for a higher throw setting. It's all unneeded but a little trick I like to do.

There is a very fine line between "hobby" and "mental illness."

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02-07-2008 11:17 PM  10 years agoPost 20
Tony Whiteside

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Shepherdsville, KY US

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KINGAIR,that was some great info.
I think i love you.just kidding around now, but with the 401 that is some very very good info. im going to run around like a little girl telling every body about that it will help out that 401 set up for sure.SWEET!
Thank,
Tony

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T-REX 450 › tail output shaft pulley
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