Oil Starvation?

[1Keith2C]

As I was reading some of the earlier posts the term "oil starvation" came up. I do cleanup and field maintenance on our farm with our M7030 4wd coupled to a 3pt. 8003 Bush Hog for trim work or a 2415 batwing for larger areas. I have lived on and worked these hills for 59yrs and have come to know them as the back of my hand. (Respectfully, not overly Confident) "Big Boy" is set up as much as practical for these extreme slopes with rears fully widened and all fours filled w/antifreeze but no added weights. I haven't used an inclinometer, but I do know there are slopes one cannot stand. I use all angles to approach an area, mostly based on trees, obstacles, and “lay of the land”. I try to do all I can on a somewhat horizontal approach, as it is an easier pull for the tractor and more comfortable for me than up and down, but it takes all. With the weight of the hogs being at such a low aspect on the tractor, along with tender braking, it generally will slide a bit before I feel in danger of rollover. It is important to keep tires at recommended psi and brakes fully adjusted as there is more steering with them than with the wheel.
All that being said, I do worry about oil starvation on an up and down pull, both forward and reverse. Is there any info as to limits of degrees slope or time spent on slopes regarding inability to pick up oil from sump or oil pan, both trans and crank? I recall earlier times when using a 50 Massey & hog, the lift would get erratic after a time of up and down so I would run horizontal for a while for it to recover. I have not noticed anything with the M7030, but I do not want to cause problems when I could drive differently and avoid them. Any response will be greatly appreciated.
Keith C

 

[ETRon]

Sounds like a question for the Kubota engineers! The best I can offer otherwise is to state I'm pretty much in the same position as you. I bushhog behind the house (up andback as much as possible) and it averages 25-30 degrees with one small section approching 45. I pull up and back down and have not noticed or had any problems so far. THis is just inference on my part but at least with the 4x4's I have a feeling the divided oil pan adds to the depth of the oil if anything. I need to compare to 2by next time I stop at the dealer. One other thing I can guarantee from other motors/machines is if you're even at the verge of starving/cavitating at the oil pickup it'll show up quickly by warning light, top-end noise, or a blown motor. I guess I have to temper it all with your mileage may vary but, that's my 2 cents worth.