My brother set my MF 135 on fire several years ago. We were burning off a bermuda hay field. I was on the ground, spreading the fire with a rake. He was on the tractor with a disc harrow, making sure the fire didn't go where we didn't want it. I couldn't see him very well because of the smoke, but I noticed he was stopped. After about 5 minutes, I thought I heard him yelling for me. When I got there, the tractor was burning pretty good, mostly where fuel and hydraulic fluid had leaked on the crankcase. Luckily, he had stopped right at a cattle waterer. The water didn't do much good, but we had just installed a new underground line to the tank, and there was a good supply of dirt where the trencher had run. When I got there, he was exhausted from trying to fight the fire. I finally got enough wet sand and water to get the fire out. Best as I recall, there was about $250 in damages to wiring, hoses, etc.
In many instances, especially with balers and combines, a small to medium extinguisher just isn't enough. I watched a cotton picker burn a year ago, and I have seen several grain combines go up. It takes a pretty good extinguisher to put out all that dust, debris, and leaked oil.
