GREAT demonstration!
Thanks!![img]i/expressions/face-icon-small-smile.gif[/img]

 

Nice Video. That right there should put to rest any doubts about the Polaris 4x4 engagement. If it doesn't work just like that on any Polaris, something is wrong with it. The only time I have even felt slip was when I was trying to climb a tree, lol.

Brian

 

Update:
I spoke to Matt Cowen, engineer at Hilliard, of the atv division.
He explained to me how ADC works on there front diff.

When ADC is activated, no throttle,under 15, switched on , and in gear!

The front ADC coil energizes and spins, a hydraulic pump, at the pinion speed 1-15 mph.
The pressure is applied to a clutch pack on each side of the diff, each axle.
The pressure applied varies with pinion speed.

At 15 mph the pinion speed is at its fastest and most pressure is applied and maxium ADC braking is felt.
At 1 mph the pinion speed is slow and less pressure is applied.

The front diff clutch packs will slip to to avoid any exessive driveline bind. As you slow the apply pressure decreases and the clutch packs slip easier.

sheepdogMSP8117,
You are correct the ADC system doesn't use the overunning rollers.
It does however vary apply pressure to the clutch packs and allows the front wheels to turn at differant speeds and steer more easily than a locked front end would. This also relieves any excessive driveline bind.
So the Polaris front ADC diff is not a locker under decell but more of a variable speed limited slip!

I just wanted to know how this worked since I can feel the front get easier and harder to steer when I have ADC activated, now I know.
Good reading.

ps don't tell the Honda guys we're not locked in the front.

 

Interesting read Rick. It's nice that there are people at Hilliard that can actually be reached for comment. So many big businesses you can't get past their automated phone systems.