Hour meter (HOBBS) vs actual run time.

[HiPowerOne]

I had noticed before, but recently I really took a look at the hour meter during operation compared to actual clock time. I have been running my tractor at about 1700 rpm for several hours and compared the recorded hour meter readings to the actual clock time. 1700 rpm is about 60% of 2900 full rpm. Then I looked at the recorded hour meter time and it was about 60% of the actual clock time. Has anyone else noticed this?

 

[old and tired]

So, your hour meter is working perfectly, as it should.

Yea, that's how it works....