Did my 50 hour this weekend and changed the hydro fluid as well. All went well, relatively easy and aided by the info found here and a few excellent youtube vids. I decided to hold off and do fuel filters today. went out this morning and she started, ran a couple of minutes, coughed and died..I immediately knew I had a freeze up. Last fuel went in from a can I had bought in probably August but had treated with Power service. Now comes the fun part..added new fuel I had bought yesterday and put heat lamps under the tractor, no luck after an hour. I had done my homework and bought a fuel shut off valve so I figured I better start the filter change. Went after the ridiculous under tractor filter, attempting to make a removal and install the shut off valve. I used a small pair of vice grips with added padding in an attempt to pinch off the fuel (now full) line. Every time I tried to remove the filter hoses the grips would pop off or I wasn't able to get a good enough grip to remove the hoses. I was able to remove the front side and quickly realized that this filter was not blocked. Ended up reconnecting after several unsuccessful attempts and still have the old filter on the tractor now. Moved to the front filter and found it frozen, so that was the culprit. That one however was almost impossible to remove as well and ended up actually damaging the filter while trying to get the hose off. The nipple of the filter actually twisted before I was able to get the hose to spin and free it up. So a few questions...the rear filter, how am I going to get this off? I'm thinking of running the tractor dry? There is a plate under there that I think I may remove temporarily ( 4 bolts) and that should help. #2, what is the best way to get a hose off when it's sealed like that onto a filter? I tried to get it spinning with pliers, pry with a flat blade etc...Any help is greatly appreciated.