Cord
Veteran Member
tallyho8 said:Cord, I don't understand this. If the differential is locked, how can the wheel brakes help steer it? When you put on either brake, won't it lock both wheels since the differential is locked? I have a 2 wd, does a 4wd somehow work differently?
There seems to be some play in the diff. I know that if I have the tractor pushing straight and I need it to go left, sometimes I can stab the wheel brake and torque the tractor around. This might be the 4wd helping pull the front end. 4wd definetly helps the tractor steer in the slop. It also might be some play in the gears that allows the one wheel to drag for a moment while the other one takes up the slack. Maybe the couple of times I did this things were greasy enough that the tires just skidded. I'm not sure. Mind you, I was not turning tight. I just needed to make a course correction.
I can tell you of an experience I once had on a full size tractor. I was trying to dump some rocks on a rock pile. I got the tractor high centered on a rock and locked the differential in an attempt to get out. It worked. I dumped the load and headed down a trail to the road. When I got to the road, I stopped, looked both ways, shifted to road range and let the clutch out. Well, I had the wheels turned left and I remember the tractor turning 1/3 the way before the front tires started to lay skidmarks. The differential was still locked. Before I could get the tractor stopped I had gone across the road was now in the ditch, stuck, with the trailer blocking the road. While the driveline does twist up, the tires will slip, the tractor will turn, but understeer horribly. Just make sure the diff lock is unlocked when you are done using it or you too could be in for a suprise.