Guys,

I made this VIDEO today. The following is the description I attached to the video:

The test ATV is a 2007 Sportsman 800 Deluxe. I taped a piece of white paper on a spoke of both front and rear wheels so the actual rotation of each wheel can be clearly observed.

This video shows how quickly the front wheels engage after the rear wheels slip, definitely within 1/5 of a turn as Polaris claims. But more importantly or interesting for that matter, is that the front wheels turn at a slower rate than the rears.

A front differential with ADC (Active Decent Control) will make the EBS (Engine Braking System) system work even better.

This video proves a couple of points I tried to make in an older thread. Hope you guys enjoy it. I have another video of basically the same thing but with the wheels rotating at a slower speed, bit I didn't get a chance to upload it.

ADDED:

I just uploaded the second video but the link isn't active yet.

ADDED:

Second video

 

Looks like your in Canada too!!!!...LOL...
It happen quick..........So people with issues know they have a problem if they need to wait for AWD!!!!
Why is the front spinng slower?
This must be for different traction ratio.........You will never need to worry about the differance in rotation while driving due o the fact the AWD will already just be putting power to the rear wheels!!!!!.......Caper............

Thanks for the clip!!!I sure this will let people without snow or ice to see the Quads reaction time!!!!

 

sheepdogMSP8117,
The only thing is that when the rear wheels have traction the front disengages and is just being pushed along and not binding the drivetrain.
You can ride all day long with AWD on.

 

Yeah, thats what I meant by forcing it. Lets say on dry pavement, if you hammer it in AWD and the rear wheels spin, the front diff will lock up. Being that the front diff is of the "over running" design, it won't disengage unless the pressure is let off. If a person keeps the throttle pinned I believe that the fronts will stay locked up and cause this strain.

Also, on ANY surface, ADC will kick in and lock all four wheels under braking. Being that the wheels rotate at different speeds, the driveline will be strained. Thats what I figure.

 

Now we need a clip to show us how fast the front disengages ......when the rear get traction!!!!
........Caper..............

 

I know I can feel the rear wheels slip before my fronts kicks in. I noticed it today in fact as I was riding and it was slick and muddy on the trails. It doesn't cause any sort of problem but if you're paying attention and have a MK 1 Calibrated Butt you can definitely feel it.

It annoyed me a bit when I first started riding Polaris after coming from the world of manual front locking differentials but I have to say, it is a very slick system that works extremely well. As well as a manual locker if not a bit better.

 

All I care about is the video shows both front wheels turning and not one just costing along for the ride.[img]i/expressions/face-icon-small-wink.gif[/img]

I can never really tell when the AWD engages or disengages it that smooth to me.

 

Great vids sheep....

John

 

<div class="FTQUOTE"><begin quote>Originally posted by: CaptainQuint

I know I can feel the rear wheels slip before my fronts kicks in. I noticed it today in fact as I was riding and it was slick and muddy on the trails. It doesn't cause any sort of problem but if you're paying attention and have a MK 1 Calibrated Butt you can definitely feel it.



It annoyed me a bit when I first started riding Polaris after coming from the world of manual front locking differentials but I have to say, it is a very slick system that works extremely well. As well as a manual locker if not a bit better.</end quote></div>


Yeah the rear needs to slip a little to get 4wd. As the rear gets traction the 4wd disengages and easy steering. The ADC works the same way but oppisite, as the rear starts to slip the front engages and slows you, but as the rear gains traction the front then disengages and easy steering.
The 4WD and ADC are not on all the time, just when extra traction is needed.
Thats why the gearing is differant front to rear to overide the AWD/ADC systems.

 

this system works(excluding the adc) just like my wifes avenger as when the front wheel starts to slip the rear whels kick in like the polaris nice and smooth and then kick back out when not needed for the traction. w/ the polaris when i go into a mud hole or what ever i dont have to worry about getting stuck and then locking it into the awd to get out as w/ this system you just start to tun the rear wheels then the front will start locking in w/ other brand wheelers you better have it locked in b4 you go into it as ive seen where they lock it in and 'bang' it slams in causing damage. now that being said, DONT assume you can be spinning and then slide the awd in as this is what talkes out the roller cage in the front end. when your driving normal w/ no excess wheel spin(meaning pure traction) it doesnt hurt to slide the awd in. i think because of this design is why the wheels spin at differnt speeds. imo.