budhatrain
Pebble Pounder
During some racing in December I had two servos strip out on me. Typically I run the savox 1258, however with a store credit and it being the only servo in stock I had also picked up a spektrum s6040.
They both have identical stats: Savox SC1258TG Digital Servo, Spektrum - The Leader in Spread Spectrum Technology
166 oz-in @6v with .08 transit speed, titanium geared coreless digital motor
They are basically the same. Some minor differences, the savox has a longer esc wire, the servo cost about $10 cheaper, and has a 25 tooth spline fitting futaba sized servo horns where the spektrum is 23 tooth and fits airtronics. No biggie but worth noting.
I was hoping that they had stripped with different gears, then I would possibly only need to buy one set of gears. No suck luck. But at less than $25shipped for a gear set- it's waaay better than replacing a $65 servo.
Tearing apart the case is easy with four screws. Then it was a simple de-construction. Once again, everything looks to be exactly the same. The only noticeable difference I will have on the flip side is that the spektrum servo will now fit a futaba servo horn instead of the airtronics it needed previously.
From here, I used a cotton swab with cowrc motor de-greaser and cleaned up the base. Afterwards I blasted in with the air can (I am working in my living room so no garage air compressor).
Now time to re-construct which isn't too hard. I did notice a couple things, the pins are the key to the whole setup (there are two of them)- remove them and it's easy to tear apart-- when it's time to put together put the final gear in place, once again easy to do then slide in the small pin. If you place both pins in and then slide gears over them you will not be able to place the gears in the proper order because the gears overlap one another. Also I did notice with the large gear assembly (the one that I had stripped out). There is a wrong way and right way to put back into place. If you flip it 180 degrees it will have limited motion, if you place correctly it will have full motion only limited by the stubby pin sticking out of the assembly itself. Make sure you have the full range of motion before screwing the lid back on.
After all this I blast the whole assembly with some moo-slick and then button it back up. I keep all the left over gears because you never know. I suspect that these big gear assemblies will probably be the only thing stripping. All in all, I would rather pay $23 and replace some gears then buy a whole new servo. Thank you savox!
They both have identical stats: Savox SC1258TG Digital Servo, Spektrum - The Leader in Spread Spectrum Technology
166 oz-in @6v with .08 transit speed, titanium geared coreless digital motor
They are basically the same. Some minor differences, the savox has a longer esc wire, the servo cost about $10 cheaper, and has a 25 tooth spline fitting futaba sized servo horns where the spektrum is 23 tooth and fits airtronics. No biggie but worth noting.
I was hoping that they had stripped with different gears, then I would possibly only need to buy one set of gears. No suck luck. But at less than $25shipped for a gear set- it's waaay better than replacing a $65 servo.



Tearing apart the case is easy with four screws. Then it was a simple de-construction. Once again, everything looks to be exactly the same. The only noticeable difference I will have on the flip side is that the spektrum servo will now fit a futaba servo horn instead of the airtronics it needed previously.



From here, I used a cotton swab with cowrc motor de-greaser and cleaned up the base. Afterwards I blasted in with the air can (I am working in my living room so no garage air compressor).


Now time to re-construct which isn't too hard. I did notice a couple things, the pins are the key to the whole setup (there are two of them)- remove them and it's easy to tear apart-- when it's time to put together put the final gear in place, once again easy to do then slide in the small pin. If you place both pins in and then slide gears over them you will not be able to place the gears in the proper order because the gears overlap one another. Also I did notice with the large gear assembly (the one that I had stripped out). There is a wrong way and right way to put back into place. If you flip it 180 degrees it will have limited motion, if you place correctly it will have full motion only limited by the stubby pin sticking out of the assembly itself. Make sure you have the full range of motion before screwing the lid back on.




After all this I blast the whole assembly with some moo-slick and then button it back up. I keep all the left over gears because you never know. I suspect that these big gear assemblies will probably be the only thing stripping. All in all, I would rather pay $23 and replace some gears then buy a whole new servo. Thank you savox!

