why do some engine maintenance cycles run off hours, like generators, but others off miles, like cars? (Besides the obvious)
In: Engineering
Hours are used for things like tractors and construction equipment. A tractor could spend all day working on a farm and only drive a few miles. So measuring miles isn’t a great way to tell you the amount of wear and tear it has gotten. Since cars are designed to cover distance, measuring distance is a good way to monitor them. A lot of tractors and equipment also has PTOs. These are shafts that the engine can use to run all sorts of devices, like earth moving equipment. Some of these might have you using the engine without the vehicle moving anywhere.
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