Welcome to the board!:med:

 

Thanks!

 

Have you flushed the ADC fluid lately?

 

No, I wanted to make sure I have a problem before I try to fix it. However, the fluid is clean and I don't have more than a couple of hundred miles on it.

 

The clutched braking and ADC are quite different, if you got down a reasonable slope with the ADC off you'll find the bike is slowing but not actively braking, with ADC on you should feel the bike automatically braking and is usually accompanied by some harmless groaning (for the want of a better word) from the front of the bike as the electric disc packs take up the strain in it's braking action. The ADC will only work below a set speed and if your thumb is off the throttle. If you suspect it is not working put the bike in gear with the ignition and ADC turned on and push the bike, if it has no effect then check the voltage at the ADC connector on the front differential.
If you do have problems then there's a multitude of folks on here that can help

Best Rergards - MM

 

Monkey Man
I tried pushing the the bike in gear with ADC engaged and disengaged. I could not tell a difference although it is hard to push it either way when it is in gear. I checked the voltage across the connector (outer two pins, connector un-plugged) and it has 12v with the switch set to 4X4/ADC and no volts with the switch at 4X4. The ADC coil resistance is 13.4 ohms.
Sterling

 

Sounds like you need to get it looked at if you feel it isn't working at all, 12V at the clutchpack connector will cause it to brake, I have seen once a bloke put the rear diff oil in the adc which caused his clutchpack to slip like crazy, we flushed it out with thinners and dried it all then filled it with the correct adc lubricant (much like transmission fluid to look at) and it worked fine, I cannot speak for your machine but if you can't get an active braking sensation on say a decent gardient slope and voltage is getting to the clutchpack connector then your machine has an issue that needs looking at as I can get my machine to brake even at low speeds on a slope with ADC activated. Sorry I cannot be of more help to you...

Best Regards - MM

 

I just rode yesterday and went down a crazy hill and could tell the ADC was working by the noise in the front end and the amazing stopping power I was getting. I have always rode 4wheelers with engine brakes and love that setup, but this ADC just makes me feel even more secure going down the mountain trails here in Alaska.

 

Last time I was out my ADC didn't work at all on a steep incline where it usually does a great job of just creeping down the hill. I had a friend ride it as well to confirm it wasn't working. I took it to my dealer since my bike is still under warranty and they said nothing is wrong with it; go figure. It's pretty nice when it works, downright scary when it doesn't.

 

What color is the ADC fluid? The fluid ln my reservoir looks sort of like brake or hydraulic fluid with a yellowish tint. It doesn't look like ATF. This is the same fluid that came with the bike when new, I haven't changed it (I got it a little over a year ago).
Sterling

 

The fluid sounds correct from what you saw, have you taken it down a decent (say 45 degrees) slope yet with ADC off then on to compare the difference?

MM

 

Yes, I've taken it down a descent slope. No noticable difference with ADC on or off. The back tires slide and the front tires rotate. When I apply the brakes the bike slows down even with the back tires sliding.

 

Sounds like you had better get a dealer to have a look at it, must be something dicky going on in there...

Regards - MM

 

Well, I took it into the dealer today. The mechanic took it for a test drive. He said he felt the ADC working sometimes but it wasn't consistent and didn't seem very aggressive. He said that my year/model has aggressive engine braking and it is hard to tell when ADC is working, and that later ones have less aggressive engine braking and it is more apparent when ADC kicks in. His opinion is that it should be working better. He put it on the computer for diagnostics and everything checked out OK. He said his next steps would be to drain/bleed the ADC fluid and change the demand drive fluid in the front gearcase but he wouldn't have time until next week. If that didn't fix it, the next step would be going inside the front gearcase. I asked about the possibility of a good will warranty from Polaris since my bike is so new and has so few hours/miles on it; and that it been like this every since I bought it. He said I would need to proceed with me paying for the work and once/if he finds something he could contact Polaris to see if they would cover it but he didn't think it is likely. He did say that he had one situation similar to mine when a bike was under warranty that Polaris authorized him to change a clutch pack once he did a fluid change, and that he could give it a try at that point. I didn't want to leave my bike there until next week so bought a quart of Demand Drive Plus fluid and said I would change the fluids myself. He said that if that didn't work I would need to bring it back so he could verify the ADC was bled properly but then he could call Polaris.
One interesting thing, I did feel the ADC work just after unloading the bike at home. However, it seemed to stop working soon after that. I changed the front gearbox fluid and drained/bled the ADC fluid. It still works the same.
I don't know how much I want to pursue this, it sounds it could get up to $1000. Obviously, I am very disappointed that I am facing this on such a new bike with low hours. I don't abuse the bike, I just use it around my property.

 

Now you have changed the fluid it may start working with a bit of use, give it a go again on a 50% grade or better, it can also be that your ADC is overriding your ADC as it may be a little agressive, if your braking downhill is sufficien with the ebc then don't worry too much. If you were closer I'd be happy to have a look at it...

Best Regards - MM

 

On mine if I'm on hardpack or concrete I can feel the steering get stiff and or actually feel it release as I turn it off.