I had an experience I would like to pass on that might help someone else. I recently used my tractor to spread 20 tons of SB2 gravel. While working, I noticed my fuel was on empty so i stopped and filled up the machine. When I tried to start it, it ran rough. I figured it had picked up some air in the fuel even though I hadn't run it dry. It finally started running but every time i put load on the engine it would stall. Just like it was starving for fuel. Well it was. the fuel filter under the left side floor board was blocked. I removed it and could barely blow throw it. I replaced it with a new filter and all is well. I was surprised that a new machine with 70 hours on it would have a blocked fuel filter so early on. Just thought I would share if anyone else has this problem.