The purpose of these photos is to attempt to show the condition of the tractor when I first brought it home.  

These pictures just don't do it justice how dirty this tractor was.  I was told that Purdue used this tractor to run a 8ft rototiller full time in their "Soilermaker" project.  That sure makes sense because there is at least 10 years worth of soil dust cemented on every inch of this 9030

 
I removed the side panels to expose as much of the engine as possible.  Again, incredibly dirty.

Photos of the right side of the cab.  Here I am in the process of changing the air filter.

Photos of the other side of the engine.  

Photo of the engine end of the tractor.  The radiator grill is beat in and caked with dirt.