Seems to be locking up?

[Deputy347k9]

Guys, I need you to put on your thinking caps for me. About two weeks ago is when I first noticed my 825i seemed to be locking up. Not in 4 wheel drive, differential not locked, emergency brake was not used. Started machine and put her in reverse, it really seemed the brakes were locked up you could hear some extreme tire noise such as turning a truck in 4 wheel drive on dry pavement. Put the machine in forward and drove 2 or 3 feet with no problem, put it back in reverse and all was normal.

Has happened in both forward and reverse? When it does happen just roll a couple of feet the opposite way and all will be well?

Any ideas? I would like your imput before I go to the dealership so I know what I am talking about. Small local dealer so I am doubting they have had any experiece with this matter.

In advance I thank all of you for the support.

Very respectfully,
Larry

[HumbleMonk]

I wonder if it could be as simple as something like rock stuck between the wheel and the disc brake.

[Deputy347k9]

Removed all four wheels, I don't see any problem what so ever. Also, it does not bind every time you put it in gear, once or so every couple of days. Besides if it was something like a rock or material in the brake system you would think I would have some sort of noise both forward and back. No noise other then when it binds up, feels like the e brake is on and tires making a churpping noise? Put it in the opposite gear and roll a foot or two and she comes out of it?

Larry

[purplewg]

I have a Jeep that does this and I am too lazy to fix it. It sounds like the same problem anyway. The piston on the disc brakes sounds like they are not releasing and you are getting brake binding. At least that is what happens on the front disc brakes on my farm Jeep.

[Deputy347k9]

Purplewg, thank you very much for chiming in, as usual I do believe you have the answer. I say that because there is no grinding only small amount of tire noise such as brakes locked up. I am hoping it does it on dirt now so I can clearly see which wheel is the problem. Again, my many thanks and blessings.

Larry

[purplewg]

Purplewg, thank you very much for chiming in, as usual I do believe you have the answer. I say that because there is no grinding only small amount of tire noise such as brakes locked up. I am hoping it does it on dirt now so I can clearly see which wheel is the problem. Again, my many thanks and blessings.

Larry

You are welcome Larry. I hope it helps.

[fire gator]

brake pads rusting to rotor alittle movement frees up next time move it to free it then look at rotors for spot where you see pad was imprinted in rotor face

[Deputy347k9]

"Fire Gator" I also thank you for the response. This all makes sence now. It's so great that you can describe your problem here and you have so many others hashing it over and the problem becomes so simple. I have to travel to the area of the dealership by weekend and I am going to make them aware of the problem so it can be addressed.

Again, my many thanks to everyone for all the brain storming, "get a done".

Larry

[gomeroh]

My 825i was doing the same thing last winter and for the life of me I couldn't figure out what was going on. Sometimes it was working right and other times it wasn't. I have a BOSS V-plow mounted on the front of the Gator and I wondered if that had anything to do with it. Like Deputy, I noticed that if I put it in the opposite gear and drove a few feet it would remove the "bind". I had a friend drive it slowly on a gravel barnyard and I noted that the front wheels did not turn at the same rate as the rear wheels when this was going on... and it didn't matter if you had the 4wd switch on or not. THAT is what is causing the "scrubbing" feeling!

Long story short... the engineers designed the 4wd system so that when you turned the switch to 4wd... all that does is enable the system to engage IF THERE IS WHEEL SLIPPAGE... if there is no slippage the vehicle is being driven by the rear wheels. Something was wrong with mine and it was going in and out of 4wd whether the wheels were slipping or not. Whatever it was, the service department at my JD dealer replaced the offending part and it has worked fine ever since. And yes, when the 4wd is engaged, the front wheels still turn at a different rate than the back wheels. Don't ask me why, I'm a farmer not an engineer.