EZGO Express 72v 4x4 -> 2x4

[JFro]

Greetings Gang - I’ve searched but cant find any information so I thought I ask this group.
I’ve recently purchased a EZGO Express 4x4 and want to know if anybody has installed a controller to switch it in and out of 4x4.
The cart has 2 separate motors (1 front, 1 rear).
The cart is FULL TIME 4X4.
The buggy will be used in 2x4 75% of the time, but need the 4x4 to get around the hunting camp.
Any help would be appreciated!
5ABE1578-404A-4761-B3AB-36E720E31A1D.jpg

[kgsc]

One controller or two?

[JFro]

2 controllers
1 controller for each motor.
Was hoping to simply disconnect the front with a switch.

[kgsc]

Problem is if you do that you need to disable the front controller so it doesn’t try to regen when driving. Is there separate run tow switches?

[JFro]

Not sure what the “run tow switches” are.
Couldn’t one just install a switch to the front controller?
Thought being, when the gas pedal is pressed in 2x4 the front controller gets zero energy.
So are you asking if this front controller would be in neutral allowing the tires to turn?

[kgsc]

Unless the correct power is removed from the front controller it may sense it is running away and apply voltage to brake it electrically. Should be run/tow switch somewhere. You need to flip that before you work on anything electric

[BobBoyce]

Originally Posted by JFro

2 controllers
1 controller for each motor.
Was hoping to simply disconnect the front with a switch.

They use a master/slave arrangement. Both are engaged and they communicate to keep in synch. You cannot simply turn off one controller because the motor for that controller will be spinning and will feed power into the controller. It generates due to residual magnetism, and once current flows it rapidly builds up a much stronger field, increasing current, ect. In a nutshel, it will damage your controller unless that motor/controller set is placed in tow mode. Even then, there are speed limits that tow mode will allow before it applies regenerative braking to attempt to prevent damage,

[cgtech]

After textron "boned us" (for lack of a term that a decent forum will allow), I'm so glad to never see/touch that again. Sorry about your bad luck. I'll never play their game again on that one. Tried "bass pro shops"? After what they did to us for Recalls on BadBoyBuggies, con us into taking Textron offroad, then tossing us to the curb to ditch us for "Trakker offroad", best of luck to you, they gave all us the whale penis, and you'll get the same support from the "factory". I hope you get a hand here, because the factory lied to us, and I'm done with their **** for "offroad". I sure hope the Arcticat owners dont get ****** like we did as dealers. Sorry, I wont touch it.

The service manuals might be available from "pi-- ed off" dealers who got screwed, if you ask.