Ok...I have a dumb question. I bought a 2hp air compressor to use with an impact wrench to remove the blades from my mower. However, when i go to remove the blades the impact wrench doesn't budge the bolt. This is the first time i've used an air compressor outside of airing the tires on my car, so i'm likely doing something or not doing something to cause this lack of pressure. Any ideas on why my impact wrench is not able to remove my blades?