CAT Creep

Time to pop some popcorn, sit back and watch the fun!

This question is sure to bring out some different opinions, but mine is that it is because of differences in internal wear in the pins and bushings of the two tracks. Could also have some little bit of slip in one steering clutch, but I think you would see that when turning under a load etc if it were happening.

hello , was the drawbar pinned or unpinned , type of plough ? ,bruce oz

Bruce , the drawbar setup would be important if he was ploughing.

If that tractor was in Oz it would be known as a boomerang, you can hop of and have a cup of tea and wait for it to come back:biggrin1:

My 2cents worth , is "the alignment " most likely ,,, meaning ,, maybe the little tractor has done many hours plowing and turning mostly one way , round and round ,,therefore wearing one side a little more than other. ,, often you can see the trouble , mostly if the distance from track to radiator is a little different from other side ,, if you know what I mean !!! .. then again ,,, I could be wrong ,, on your machine !! ,,,without seeing it .. ! .. Regards pete

Check for a bad bottom roller or idler problem or if the UC is worn more on the slow side. The bushings may be hitting the bottom rollers.

Curvature of the earth. In between the spring equinox and the longest daylight day the gravitional side pull is the greatest. In the fall it should pull the other way. :lie::lie::lie::lie:

Or as an alternate; I think wear is a bit more pronounced on one side. It would not take much. I've seen the same thing many times when traveling straight for a distance.

I'll bet it was the wind!