Technically our SI-4431 is the same size at the one you mentioned. But its faster (.07 to .08) and stronger (267 oz to 166 oz). But the 3431 has similar torque, with faster speed and is of course smaller. I have used the 3431 in both my XFactory Cube and XFactory Infinity B5M - with out any issue and it helps to give more room to fit your electronics.

SI-4431 issues
 

Im having problems with my SI-4431 servo in my SCTE 2.0. The servo is only a few weeks old and has only been ran in the truck for 15 batteries. A couplke hours ago, I was at the track, the only thing I did was make a few changes to my HW V2.1 via the program card. Once I was finished, I went out on the track and had 0 steering. The servo is not making the normal initializing tones. I checked my RX with another know working servo and everything is fine. I need to know how I would go about getting a replacement 4431.

follow the steps at www.hadrma.com to send it back to us. We'll take a look.

XPTSI-4431 - I was planning on shortening servo leads. Is there anything out of the ordinary I need to know?

If all you want to do is shorten the leads then I doubt there's much to be worried about.
As long as you go about it the right way.

Just be aware that if you shorten the lead you run the risk of voiding your warranty..... like Hitokiri said "as long as you go about it the right way".

So now everyone is wondering what the "right" way is?

Well in my eyes the "right" way is to not do any soldering where the heat can travle up the leads and into the electronics which resides inside the servo housing... I may be wrong but that's how I see it.

So if you are to shorten the leads then you should do so using the right equipment/tools.
This is my selection of tools of which I use when I repair damaged servo leads or make new servo extension leads.

http://billeder.bazoom.dk/rc/album/7...-tilbehoer.jpg

http://billeder.bazoom.dk/rc/album/7...-tilbehoer.jpg

http://billeder.bazoom.dk/rc/album/7...-tilbehoer.jpg

If one is to do any soldering it's important to have very good skills with a soldering iron and preferably have equipment where you can control the soldering tip temperature to minimize the risk of heat wandering up the leads.

Below is a short video of my soldering & rework station that I use on rare occations where I need to do some soldering. The temps displayed is in Celcius.
http://www.rcgalleri.dk/video/off-to...n_loddestation

Sorry the video is not on the tube for a better link. I hope you can live with it.

Ideally, you don't change anything on the wiring. I have been doing this over 25 years and still make mistakes. I bundle my wires up and use shrink wrap.

I have shorten wires using the tools above, still need a good hand and be careful how you do it. Less chance of fatal mistake (still possible). From a warranty standpoint - any modification from the way the unit was products, can void the warranty. That is pretty standard from electronics in all types of electronics.

Xpert RC Products Are Warranted Against Manufacture Defects For 1 Year From Original Date Of Purchase.

Warranties are not transferable and therefore limited to the original purchaser of the unit. Products that have been improperly installed, mishandled, abused, lack of maintenance, or have suffered damaged due to a crash or other causes is not covered under warranty. he gear set in Xpert servos are considered as consumable parts. It is not covered by factory limited warranty.

It is important to confirm that you are buying Xpert RC products from a local authorized dealer or distributor to insure warranty and repair coverage on your equipment. In case you need any warranty and service on your Xpert servos, please contact your regional Xpert service center for quick service turnaround.

For all other questions regarding servicing of Xpert RC products, please contact us at [email protected] or use CONTACT US form.

i dont see anything about modifications ..

My closest Xpert dealer is in the UK so I tend to buy mine there. It would be nice if there were a dealer in Denmark but the problem with that is the serious price hop they would get due to danish taxes on everything. So even if there were a dealer here in Denmark I would most likely still buy them in the UK.

In regards to the comment by Nikos2002 about not tampering with the leads but use heatshrink if one wants to shorten the leads up is of course the most ideal way also to not void any warranty.

But in the event that the leads suffer damage and need to be mended then I will hold firm to what I write in post #188.
Unless it's expected that people send their servoes back to Xpert RC for proper and correct repair if it's within the period of warranty? What is your advise on this SerpJimmy?

If it happens after the warranty has expired then people are free to do as they want when they repair damaged leads I assume.

It appears to me that the warrantee has been left open as a judgement call by xpert. IMO,If in fact I need to shorten the lead. Then within the year there's a problem that warrants repairs. Next, if Manufacturer elects out & attempts to charge me . Then I'll have them keep there product & I'll move on to another manufacturer . This is more my course of action then advise though.

I run shortened leads on almost all of my Xpert servos. Not a one has had an issue, and over the span of 2 and a half years I've had one servo "brick" and broken one gear in a PI-3431 when running it in a novice buggy on astro. New gear set for the broken one fixed it right up and it's in one of my 2wd mod cars right now, and Xpert USA handled the bricked servo promptly and sent me a replacement. Part of the troubleshooting process is to determine cause of failure, so I would imagine that a problem not related to the servo lead would likely still be covered. The process to shorten the leads is fairly straightforward, just ensure that you use a proper crimping tool so your servo is reliable afterwards.

Sorry if this has been asked before but I could not find anything using search. I recently installed a PI3402 in one of my Touring cars. I noticed that it initially centers very slow when turned on but then seems to work ok. Is this normal for this servo? I have never seen this with the other brands I used to have. There the initial centering is always very fast.

Kind regards,
Mike

Yes that's actually one of the nice features of the servos from Xpert RC.

It's a selfcheck they do on start up. It plays a little melody as well right?
One of the reasons it does as it does is contrary to most other servos where when you fire them up they often centers very rapidly in a sort of jerking fashion so the electronics especially the motor can be under alot of strain. The Xpert servos tries to prolong the life of the electronics and gear train with the self check and slow centering.

You can check out this video and maybe find more answers.
https://www.youtube.com/watch?v=ZnTwV244eGM