Quote:
Originally Posted by Doghouse
So it seems like then if I'm going down a grade at gross then setting 3 would be used, and the other 2 settings are for lesser grades or weights?
When I used to haul bedroom furniture, I was so light that #3 on the Jake was in real danger of killing my engine. (That was a mechanical engine. Modern ones will cut the Jake off below 1200 RPM (or whatever is appropriate for your particular engine.)) With that setup, I used to flip the switch up and down to vary the braking when going down a steep hill, and of course I didn't really need it, and I was just playing with it because it was there, and it made a nice obnoxious noise.
With the new job and new truck, I find I leave it on #3 all the time. I never have less than 19,890 pounds in the box, and the Jake doesn't seem to do anything at #2 or #1 except make useless noise.
I don't really *need* a Jake where I'm running now, for that matter, but it reduces the number of times I have to break the cruise.