How to reverse a servo direction?

[RickDizzle]

Ok seems like a simple question...with a simple solution. Reverse the servo in the TX. Well not that easy on the Raminator. The throttle is also tied to the brake servo...i.e. you pull the trigger and the throttle servo pulls open the carburetor and the brake servo moves releasing any brakes. You hit the brakes and the brakes apply and the throttle servo moves opposite direction to release and close over the carburetor. Well the Savox servo is going the wrong direction. It is going the opposite way I need it to. I.e. I hit the gas it is closing the carb...hit brakes opens carb. Cant reverse it at the transmitter as then it give me the wrong effect at the brake servo. Am I missing a simple resolution to this somewhere? How do I go about fixing this issue so I can run my new servos? Thanks guys!

 

[DougStar]

Can't you flip the servo horn?

 

[RickDizzle]

Nope...nor the servo base on the set up...same exact issue with my reverse servo lol..i know they sell servo reverser switches that you can put inline...maybe im gonna have to go that route.
Here is a pic of the throttle servo...the tranny servo is the same...just sits behind it facing opposite way. I didnt even install the new servos..I had this weird gut feeling and powered em up off the truck before installing to check this issue. A dude on YouTube ran into this issue I remember on his brake servo...ended up getting a revering switch for it.

 

[DougStar]

And why won't the tx reverse work??‍

 

[Bizzer]

Are there not settings in the tx setup to do this? I had to do this when I installed my Hilantronics for the throttle but I am running a DX5.

 

[Seandonato73]

Yeah I think wate all missing something here. Reversing a servo is done with the TX. The reverse units do the same as the tx.
Wait theres 2 servos on it, one for brake and one for throttle? If so you need to go into the mix settings for the throttle and brake servos and reverse the throttle servo. Should show you how to do it in your manual for the radio.

 

[Milo]

What make and model is your radio system?

 

[RickDizzle]

Yeah two servos on same channel....i have the Futaba 4pm...have not set it up on the truck yet...was gonna install new servos first then install new RX and set up new transmitter.

 

[Milo]

Here you go

 

[DougStar]

Slave the the one servo to the other and then reverse it on the tx?? i have dual steering on the losi and if I want i can still reverse the one

 

[RickDizzle]

Here you go

View attachment 70333

Like this would it not reverse both servos as they are on the same channel? Not arguing by an3 means just trying to understand.

 

[Milo]

I don’t know if that would happen, you’ll have to try it. It that fails you may need to get programmable servos or the reverser switch like you suggested.

 

[DougStar]

Don't put both on the sa.e channle ?? each servo get its own ans

 

[RickDizzle]

Only have 4 channels...thus channel 1 is steering, 2 is throttle and brake, 3 is killswitch and 4 is reverse...looks like gonna have to get servo reversing circuit. Ill reach out to Savox on Monday and see what they say.

 

[Milo]

Don't put both on the sa.e channle ?? each servo get its own ans

I thought about that but wasn’t sure if you could program the brake to a different channel.

I suggest you spend some time with your manual Rick. ??

 

[Seandonato73]

Yeah theres too much going on eating up channels. The right way to do it is with a 5 channel radio. But yeah get the inline reverse gizmo and call it a night.

 

[RickDizzle]

Yeah I figured a 4 channel would work based on how Primal has the truck wired only using 4 channels...sigh. I guess ill need to get the servo switch...here is the factory wiring from Primal. Thanks fellas!! And fully agreed Milo...just got it yesterday so will be doing a bunch of reading ro get familiar.

 

[Milo]

Futaba is great but the manual menu system is a clunky and unintuitive.

 

[Seandonato73]

Primal cheaped out there to get away with less channels and a cheaper radio.

 

[RickDizzle]

Funny thing is...the radio that comes w the truck, FS-GT5 is a dang six channel radio and reciever...lol!