I have found that a fair amount of my valuable time was spent looking in manuals for numbers or spec's . Last spring I made a couple of charts to put up on the supply cabinet and desk for the filters used on equipment . I made another list for tire pressures and wheel torques and put them on the wall where the air lines are . Some of the guys noticed the list and top up the tires themselves . I also have a list of fuel tank size to stabilizer amounts listed for each machine . I'll be using that list shortly .