WYATT - KRAIG is like Me, He NEVER throws ANYTHING away. Difference is HE can find it!
JIM HARDER - Blowing dust off a CC is a great way to get the dust & dirt off after mowing. Whether you use a leaf blower, air compressor and air hose & nozzle.
IMHO, DO NOT use a garden hose and NEVER use a pressure washer on a CC & mower deck you ever intend to run again without a complete tear-down. You'll get water into places you didn't even know the tractor/mower had places. Oil, WATER, grease, paint, belts, friction materials like clutch & brake pads, precision machined parts, clean electrical grounds, ALL do not play well together. All those nice clean unpainted steel parts, and even a lot of the painted parts will be RUSTY when ever you get around to taking them apart later.
If your tractor isn't clean enough to suit you after you blow it off use a damp cloth and wipe it down, or a Swiffer Duster. If you have tree sap or grass stains on it use the proper cleaner sparingly on a clean cloth to wipe it off.
DO NOT run water over the tractor and then park it for a week.