Hi everyone. I'm having a bit of an issue. Our JD 5093E has decided to just stop moving whenever you start up an incline. i.e. Today I was brush hogging a field, everything was going great until I went to go up a small hill at which point the tractor slowly cam to a stop. The odd thing is, the engine stayed running, didn't bog down or anything, the RPM's didn't increase or decrease, the brush hog kept running, no warning lights, nothing.... To get it to go again, I pushed in the clutch and released it. This is only happening when going up an incline. I don't know if this will matter or not, but I run the machine in 4 wheel drive as the fields I cut are swampy in areas. If anyone has any idea of what could cause this, please share. Thank you in advance.