Great thread! This turned into a nice learning moment for my 17 year old son who is talking about a Physics college major. We watched the differential video together (it really caught his interest). That led to a discussion about how brakes work - and a trip outside to look at the brakes on my truck. That's what led to my later question about how the tractor's brakes work.
Thank you so very much for teaching me (and my son) a bunch!!
No, to get real 4wd, you need a diff lock at both ends. So, unless you buy a Cat Challenger MT 900, a CNH Steiger/NHT9,or a JD 9R series, you won't get a true 4wd. FWA (front wheel assist. )with limited slip is what they are.To get "real" 4WD the front axle has to have limited slip and you have to lock the rear differential with the foot lever (on a Kubota).
The Kubota M7040, M8540. and M9040 have a limited slip front differential. Mine has engaged a few times in heavy conditions but there is no lever or way to permanently engage it.
When pulling over large trees I have left four very nice excavated holes in the ground.
Or you could buy a Deutz Fahr Agrofarm 85 or 100 and get both front and rear differential lock with true 4 wheel drive and wet disk breaks on all four wheels.No, to get real 4wd, you need a diff lock at both ends. So, unless you buy a Cat Challenger MT 900, a CNH Steiger/NHT9,or a JD 9R series, you won't get a true 4wd. FWA (front wheel assist. )with limited slip is what they are.
In older 2wd tractors without a diff lock. When we would get stuck and have one tire spinning. We step on the brake for the tire thats spinning and that will transfer the power to the tire thats not spinning and if its not stuck too bad that will get the tractor out.