I could use some values of RPM for regular idle speed, and high.
These would be for series 6o model, DDEV III, and DDEC IV.
I am trying to compare the two and see if they have different values.
Just as I was receiving my bus the DDEC III went bad and was replaced (upgraded to a IV). I have no experience of values to determine if my regular rpms of 700 and high of 800 are correct. I have a feeling 800 is not correct.
The tech who did the changeout was employed by Stuart Stevenson and performed the work at Mr. Olivers shop (this may have been a side job) could not adjust the high idle any higher than 800 rpm and just shrugged it off with an oh well they don't want you to idle much anyway.
I stopped into a Freightliner service shop without the bus just to see if they thought they could adjust it up. The answer was yes. Bring it in. I said how high should it be? They said around 1500 rpm. I think that sounds too high, so now I am seeking advice here.