I left for the winter. I just returned and skid steer still sitting in the same spot. I found out the problem, there is no hydraulic fluid. Filled up the reservoir, started it up and it moved a couple feet. Hydraulic warning light came on and machine shutdown. Checked the reservoir again and nothing on the dipstick. Put in another 5 gallons. Machine moved back-and-forth, bucket raised up and down. Hydraulic warning light came on the machine shut off again. Damn, check the dipstick ,no oil ,put in another 4 gallons. Drove around the driveway and everything work, I was elated. Next morning came out and started it up and the hydraulic pressure light came on again. I lifted up the cab and there was a small lake of hydraulic fluid on the filter side of the chassis. I pumped it out and it came to over 4 gallons. So overnight it leaked the whole reservoir out. Spent several hours steam cleaning and Gunking out the muck. Going to town tomorrow to get more hydraulic and some fluorescent dye. Believe the leak is somewhere under the hydrostatic pump where the oil reservoir line comes into it. If that's the case, it looks like it's going to be a real job to fix it.