I have a M5030SU that is very hard to steer. It is especially hard when it is first started. A lot of times I have to pull forward and back real slowly to get it out of the shed, once it warms up it starts to get some better. Just started doing this in the last week or so. Also when I raise the front end off the ground with the bucket I get the same response. I just changed the canister hydraulic filter today and no change. I found a Kubota steering oil filter on the Coleman site listed for my tractor, but can't figure out where it might be located? The item is here http://www.colemanequip.com/parts/KubotaParts/36330-63460/939 . It has been leaking a little fluid since I got it last year around the steering box, but the fluid levels always read normal and you can't tell any loss on dipstick. Thanks for any replies.