X9303 Internal Wire Chafing Issue IMPORTANT

[rccardude04]

I just thought I'd mention... I was working on a heli for a lady with an X9303, and since I had the problem, I pulled hers open to check. Sure enough, it was doing it too. Here's the kicker though. The wires had already been rerouted per JR's mod instructions. I had to pull them around and put some shoe goo on the little springy wire keeper so that it wouldn't wander back over to the regulator.

I say EVERYONE needs to at least check theirs. I actually figured it out on mine because it would pop when going from full forward cyclic to full back cyclic. I pulled it open to see a ilttle bit of copper showing. I covered it in shoe goo then asked a friend about it. I hadn't seen the JR info on it yet, but my mod was almost identical to what they said to do.

-Eric

[sonofcar]

well crap because i dont use dual rates and was quick to get my radio back and flying again. Well when i did get it back i had to readjust my swash. It was off my a flew degrees(need to fly so didnt think). Will only thing i noticed is that my throw was not even(left full stick was not full). Then last weekend i want to work on some hovering stuff and started programing dual rates, and found out that if i flip into a dual rate my swash moves over.:( which means when they had my radio they installed my gimbal wrong. Shoot and then i opened my case up to find the repair of the wire placement has not worked, the wire was being rubbed again:arggg: I am not to happy right now haha so i guess i will send it in and hopefully they can fix both(free or else) without messing somthing else up:confused:

[Finless]

Carson, if you havent sent it in already, PM me as I know how to fix it if you like. I can walk you through it over the phone.

Bob

[T-Reximus]

I just bought my 9303 last week and checked it out to find that the wire was routed incorrectly and would have chaffed with use. With the help of the pics from the link I rerouted the wire and should have no issues.:thumbup:

[snjbird]

Follow up post, did my fix in Sept and checked it again in Dec. no more damage done, the fix is holding fine.

[Jill75]

http://storeyourpicture.com/images/signature_RC.jpgI found several of you have chafing issue and most also have posted pictures to where the chafing is located. Thanks as this will definitely help others check their "toys" before the thing gets worse and gives damage to such pricey toy. But does anyone really know why this thing happens? What is the best solution to fix this?

[cudaboy_71]

http://storeyourpicture.com/images/signature_RC.jpgI found several of you have chafing issue and most also have posted pictures to where the chafing is located. Thanks as this will definitely help others check their "toys" before the thing gets worse and gives damage to such pricey toy. But does anyone really know why this thing happens? What is the best solution to fix this?

the problem is there is a sharp chip on the back of the transmitter case that rubs directly on the wires as the gimbals are moved (you are effectively sawing the wire against the chip as you move the gimbals). relocating the wire, and using the shoe-goo to cover up the damage to the insulation IS the horizon-recommended fix.

this is all stated in the links on the first post, FYI.

[WillJames]

the problem is there is a sharp chip on the back of the transmitter case that rubs directly on the wires as the gimbals are moved (you are effectively sawing the wire against the chip as you move the gimbals). relocating the wire, and using the shoe-goo to cover up the damage to the insulation IS the horizon-recommended fix.

this is all stated in the links on the first post, FYI.

+1

No worries since doing the fix. :thumbup:

[carzan]

Is this chaffing still an issue with 9303 radios purchased in March of 09?

[str8huckin]

I would check it. i just did my buddy's and it had already had the fix done from the factory, but it was still chafing. He bought it about 3 months ago and it only had about 75 flights and I could just barely see some wear on the black wire.

[wilywampa]

I bought my X9303 in Feburary and there is sheet of clear plastic installed over the voltage regulator to prevent the regulator from cutting the wires. My wires still rub against that plastic sheet, which is annoying because I can feel it in the stick. I want to send mine in to have them install longer wires routed over the top of the right stick gimbals to avoid the rubbing altogether. At least the plastic sheet will prevent any damage that could cause a crash.

[MaSt0RaS]

how much does it cost to send it to the repair cnter?

Also what exactly is the shoe goo that JR says to put on the wire?

[Bayward]

how much does it cost to send it to the repair cnter?

Also what exactly is the shoe goo that JR says to put on the wire?

I believe Radio South gets $35.00 minimum bench charge. At least that is what he is charging me to repair a GY401.

Shoe Goo:
http://www.biosafe-inc.com/shoegoo.htm

I heard about the service bulletin back when it first came out and brushed off the importance of it. I thought it was probably the overly cautious safety pundits playing "Chicken Little". Earlier today for the first time I looked at the poll. Roughly half of the 9303 users have chafing. Yikes !

I had a loose throttle hold switch anyway so that was a second reason to take the back off. Sure enough my orange wire was 20% ~ 30% rubbed through to the copper. I have no idea how much longer I would have gone with a good aileron gimbal, maybe a year or longer. Who will know ? With my luck though, I can almost bet the wire would have failed while I was flying the new Trex 600 Pro nitro I am building. Or even better, on its maiden. :lol:

Bob

[theaton56]

The later releases have the voltage regulator repositioned so as to miss the cabling.

[wickedsprint]

How do you know this?

[theaton56]

I repair transmitters for the UK Distributor and the last 2 RF pcb's that I have had to replace have had the new style pcb fitted.

This has the voltage regulator repositioned to low centre of the pcb.

Initially JR released a modified pcb with a plastic strip running over the regulator until such time as they modified the build to reposition the regulator.

[bmccowan]

I just bought a trex 700 yesterday used and have been going over everything before I take it to the air, and the radio is one of the 9303's and sure enough it was chaffing. So as well as moving the wires I also put a small piece of the red tuck tape over the chip. After felling the side with no tape and the one with it, it made a huge difference on how smooth the edge felt. I thing just that alone would give 10 times more time before it rubbed through if at all, with just the tape. By the way this is my first post on here lol! Pretty much all I know and have learned is from helifreak. Thanks to all and bob fore sure for all the build vids, total lifesaver!

[bmccowan]

I just bought a trex 700 yesterday used and have been going over everything before I take it to the air, and the radio is one of the 9303's and sure enough it was chaffing. So as well as moving the wires I also put a small piece of the red tuck tape over the chip. After felling the side with no tape and the one with it, it made a huge difference on how smooth the edge felt. I thing just that alone would give 10 times more time before it rubbed through if at all, with just the tape. By the way this is my first post on here lol! Pretty much all I know and have learned is from helifreak. Thanks to all and bob fore sure for all the build vids, total lifesaver!