There is a lot of information online with how to loosen the belt and spread the lube accordingly. I took a simple drinking straw, put the lube into the straw, put a paper towel and used a small amount of air pressure to blow the lube from the straw to the surface under the belt. Much easier than trying to loosen the belt, and less stressful on the belt trying to lift up and get my fat hands under the belt.
Only four stars because shipping was double the cost of the item that came in a padded envelope. I ordered multiple tubes for future use.