So I tried changing my hydraulic fluid yesterday on my 300 DTC. I must have missed something. I swapped filters and a lot of hydraulic fluid came out of where the filter screws on to. I believe this tractor takes about 10-11 gallons of fluid. I refilled the fluid through the dipstick tube in between the footwells. The front end loader works great, but now my 3 point arms will not go down. They go up- they worked fine before the fluid change. Can someone please tell me what I missed? Thank you.