Some how manages to get past the grill in the screen and on front of radiator. I carry an air tank in my pick up and blow it out from the back of radiator toward front of tractor.
Working on installing a 12 volt air compressor system on my pick up just for this reason.
Lol that's the truth.... I have a small compressor that I use when mowing with the 1540... its buttoned up tight and still grass manages to find its way in.. either way the dust is so bad im using the compressor after every mow