I've tried making.....
different kinds of generic spreadsheets and forms, but I think all in all, the best way is to customize a sheet for each piece of equipment. Most of the time the owners manuals have maintenance charts in them to go by. Thats the easy part. The hard part is keeping track of it all. Unless you design a good system and really keep up with the tracking, all the paper in the world is usless.
TSgt David M. Famiglietti
United States Air Force
EarthWorks Professional Outdoor Services
North Las Vegas, Nevada