exhalt
One thing you need to factor in is that a lift truck does not accumulate a full 8 hours in an 8 hour shift or 10 hours in a 10 hr shift. Typically, the usage is 3.5 to 4 hours. Most end users have no real clue how many hours a fork lift runs in a shift - they will say the number of hours in their work shift. At one time hour meters were replace frequently for a lot of reasons including reliability, hum an factor - operators like to break them- they think they are tattle tales - today's hour meters are more reliable and human resistant.
In my 41 year in the lift truck business the most I've seen a fleet of trucks operate was 5.5 hours out of an 8 hour work shift - in both cases it involved cross docking operations at over the road break bulk centers for freight carriers - Roadway and ABF