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Other › Tail Belt Shredding
02-11-2006 01:59 AM  12 years agoPost 21
The_Widowmaker

rrElite Veteran

Bear Valley Springs, CA

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Modified roller
I modified the belt roller so that it has flanged sides now. I'm hoping this will help with belt tracking and prevent belt shredding due to the belt running onto the edge of the rear pulley. I did notice that the roller tends to make the belt run off track so either flanging it as I did or even removing it might be a better solution.

"I'm a Virgin.. I'm just not very good at it. "

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02-11-2006 02:32 AM  12 years agoPost 22
The_Widowmaker

rrElite Veteran

Bear Valley Springs, CA

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Thats aligns upgraded pulley and my first belt shred happened after upgrading to that.

"I'm a Virgin.. I'm just not very good at it. "

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02-11-2006 02:36 AM  12 years agoPost 23
CHOMP

rrApprentice

Vancouver WA USA

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I’m just getting to the tail section of my 450 XL HDE build.

Should I leave the belt roller (idler) off as some of you do? What would be the disadvantage to not having it?

Besides letting the system run freer, I take it that it helps the belt track better, correct?

I plan to use the STP belt dressing on the belt.

Instructor: Don’t you know anything? Newbie: I don’t even suspect anything!

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02-11-2006 02:39 AM  12 years agoPost 24
The_Widowmaker

rrElite Veteran

Bear Valley Springs, CA

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No its the tail shaft/pulley in the align gear reduction upgrade.

Chomp just watching the belt I'm not so sure the roller helps and might even make things worse. If your belt is tight it tends to want to roll off the edge of the roller and then it has no place to go but onto the edge of the pulley. I may remove mine.

"I'm a Virgin.. I'm just not very good at it. "

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02-11-2006 02:56 AM  12 years agoPost 25
CHOMP

rrApprentice

Vancouver WA USA

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Thanks guys, I appreciate it.

Now another question (I seem to have a bunch of them). There are 2 brass spacer type pieces in the hardware bag for mounting the collective rocker and aileron control arms. I can’t seem to locate them in the diagram. Where do they go?

Instructor: Don’t you know anything? Newbie: I don’t even suspect anything!

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02-11-2006 03:09 AM  12 years agoPost 26
CHOMP

rrApprentice

Vancouver WA USA

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Ooops,

I should have looked closer. I think I see where they go; it’s like a sleeve between the mounting screw and the bearing where the collective rocker attaches to the main frame.

Instructor: Don’t you know anything? Newbie: I don’t even suspect anything!

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02-11-2006 03:47 AM  12 years agoPost 27
leejax01

rrVeteran

Jax. Fl.

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Belts
Had 2 shread before on the SE and none on any of my CDE's. Also, the belt needs to be re-tensioned after initial run in as the kinks are spun out. The WD works extremely well too.

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02-11-2006 10:21 PM  12 years agoPost 28
Ozydego

rrKey Veteran

Westerville, Ohio

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The only thing the idler belt does is to keep the belt lower in the boom, so it doesnt have as much of a chance to rub on the top part of the boom coming out at the back at the tail box. Since the belt runs to the back of the heli on top, and bcak to the heli on the bottom, any slack is going to be on the run going to the back, this creates just a little slack in the line which the idler pulley keeps from rubbing the top of the boom.. This is how I interpret the movement and therefore I keep it on my heli.. I run my belt fairly loose... to the point where I can jump the metal teeth with the belt by turning the tail fairly hard while holding the head still... Like I said, I have never had a tail belt shred, and I attribute it to the lube letting the belt slip back into place easier.

But Honey, I can't live with just stock.....

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02-12-2006 12:13 AM  12 years agoPost 29
Cabbageman

rrNovice

LOL!

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Get some lube and grease it all up to attract dirt and stuff. LOL

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02-12-2006 01:00 AM  12 years agoPost 30
CHOMP

rrApprentice

Vancouver WA USA

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I picked up the Hyperion CNC tail box for my 450XL. They didn’t have the aluminum pitch slider so I’ll have to use the stock slider and get the other one later. This tail box has the beveled belt roller similar to what The_Widowmaker shows in the picture at the top of this page.

I also went to the auto parts store and picked up some CRC Belt Conditioner and plan to rub it into my belt before installing it. It says it prolongs belt life, stops squeaks, and prevents slippage. Should I use it or would WD40, Tri-flow or silicone spray lube would be better?

Instructor: Don’t you know anything? Newbie: I don’t even suspect anything!

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02-12-2006 03:08 AM  12 years agoPost 31
Vaigod

rrVeteran

Palm Beach, Florida

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I've been having the same belt fraying problem. I'm going to use medium tension on the belt, and WD40 sprayed into the tailcase. I'll report back soon with how its going. I'll try to fly out 2 packs and then re-assess the belt.

-=Artti
T-Rex 450SE / T-Rex 600 / JR 9303
Rap50 Titan-OSHyper MP2 GV1 / Rap90SE OS91 MP2 GY611

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02-12-2006 02:54 PM  12 years agoPost 32
Vaigod

rrVeteran

Palm Beach, Florida

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Well, I've put 2 more packs through her, and the problem seems to be gone. Not only is the belt tracking better, but I picked up a bit of headspeed from the belt turning a little more freely. I bet my autos will be smoother as well.

-=Artti
T-Rex 450SE / T-Rex 600 / JR 9303
Rap50 Titan-OSHyper MP2 GV1 / Rap90SE OS91 MP2 GY611

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02-12-2006 03:35 PM  12 years agoPost 33
Heli_Freak_de

rrNovice

Germany

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I use the tail pulley from the Ark X-400. It looks like the one '
The_Widowmaker' build.

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02-12-2006 03:36 PM  12 years agoPost 34
Sign Guy

rrApprentice

Las Vegas, NV

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update
Ok, I'm dropping the idler pulley. I tried the WD40 method, and it looks like I'm starting to see wear again after @ 10 flights. I threw in another belt last night, so we'll see what happens

Better to have tried and failed than to never have tried at all!!

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02-14-2006 03:51 AM  12 years agoPost 35
Ozydego

rrKey Veteran

Westerville, Ohio

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I would do the alignment then Sign guy, by bending the boom just enough to center that pulley tracking.


Fin... I have only used two belts in the year lifetime of my heli, and I only got the second with the boom extension upgrade. I DO RUN THE IDLER PULLEY and I DO USE LUBE and have never had a problem. The idler pulley is not the problem.. The alignment is probably the answer, but I don't do that either.. with my old metal boom or my new carbon boom.... I just use lube.. not WD40, I don't like it, just plain old lube I use for everything else.. and I have a smoother drivetrain to boot... go figure....

BTW, I think running without the idler pulley would be considered a mod.... but thats just me...

But Honey, I can't live with just stock.....

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02-14-2006 04:08 AM  12 years agoPost 36
lbowen

rrApprentice

York S. Carolina-USA

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Belt dressing sure works on cars and my belt drive mowers - I will give that a try! I am not shredding belts but supple is good for sure.

lbowen

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02-14-2006 04:17 AM  12 years agoPost 37
Ozydego

rrKey Veteran

Westerville, Ohio

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I took closeups of my current belt that I have been running for over 6 months now and I was quite pleased with the way it still looks, I was expecting something a lot worse, but it still looks great... Like I said before just lube every now and then. I also noticed I am not picking up dirt like I thought I would either, although I can see some residue on the mounting block of the front pulley. Like I also said way above, I run my belt pretty loose, I don't know if that has anything to with it either...

But Honey, I can't live with just stock.....

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02-14-2006 01:05 PM  12 years agoPost 38
firestat

rrApprentice

Columbus Ohio

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It's happened twice to me. I have since been putting a drop of oil on the belt and have had no problems. You just have to keep checking it for ware.

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03-05-2006 07:02 AM  12 years agoPost 39
craigo

rrNovice

New Zealand

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I think the problem with the belt can also be caused when the tail rotor pitch slider is too tight on the tail rotor output shaft causing the load on the belt to increase then the belt shifts on the pulley as I found on my t-rex

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03-12-2006 04:02 PM  12 years agoPost 40
T.J. Kong

rrApprentice

Northern California

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My belt just shredded yesterday. I put the stretched boom on about 15-20 flights ago. Prior to that, I had run the original belt for over a year without any significant wear. I noticed that the stretched belt was made of a new material. I wonder if that has something to do with it as well.

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