Road Vibration in DK45C

[DieselPower]

Come on guy's. Am I the only one that remembers the good old bias ply tire rumble in car and truck tires we had back before radial's became the wave of the future. Get in your ride in the morning and the first couple of miles were enough to rattle your teeth out.

 

[4sarge]

Just took delivery on a new DK45C and noticed that there is a lot of vibration at 1800 rpm or rpm's above 1800, when on asphalt surface. I called the dealer and he said to check the front tire pressure. Will do that sometime today. The vibration goes away at a lower rpm. The vibration is comparable to a separated tire on a vehicle and seems to come from the front section of the tractor.
This is my first cab tractor; however I have owned several tractors and have never had this type of vibration at any speed or in any gear. Any ideas?

asphalt- what's that

I only got dirt, gravel and more dirt

 

[punkinspecial]

Just to add a note about me and my experiences. I have been farmin' and usin' tractors of all kinds for the last thirty years and am used to flat spots. I know my tractors and how they "feel" during certain tasks and while certain implements are being used and how they are supposed to sound when runnin' properly. If I feel or hear something odd, I check it out. You will notice the effects of the flat spots the faster you go like at road speeds. The tires will round out fairly fast at road speeds but will probably take longer at slow speeds. You will not feel it in the seat as much at the slower speeds. The overall "feel" of my DK55 has been harder to get used to more than other tractors I have had. The platform seating has been a huge factor as I am sitting higher. Also, this is the first turboed tractor that I have owned. I believe the higher RPMs of the engine creates the possiblity that more vibration can exist. I also believe that if my front tires were loaded it would reduce the vibration. The dealer says it is not necessary because of the weight of the loader. If you are a new tractor owner, I would just say to learn its sounds and quirks. They all have them and you will know when your tractor is doing something that is not normal for it.