All I can say is thank God for chain wrenches. I was doing the first 50 hour maintenance on my tractor today, and it calls for swapping the hydraulic filter. It's ginormous, and I could not budge it using one of the standard filter strap wrenches the tractor store sells (look like regular oil filter wrenches, but bigger). I wasn't sure what I was going to do, other than either calling the tractor fixer or else doing the dreaded, "poke it with a screwdriver" trick. Then my electrician happened to stop by, saw my dilemma, said, "Hang on 10 minutes" and ran to his house and came back with the chain wrench. I still about gave myself a hernia, but I got the damn thing off in one piece and without breaking anything else.
Apparently, from the interwebz, it's standard for all the tractor manufacturers to hire gorillas to put the factory filters on without lubing the gasket, then tractor specs call for 3/4-1 full turn with a wrench after gasket contact, then of course they paint over them, and you wouldn't think paint would be a problem, but it is. I had to really yank at the oil filter too, as well as both oil drain plugs which were also all painted.
Anyway, at least no more of this crap till 300 hours, and hopefully after breaking all the factory seals, that one will be easier. I'm buying a chain wrench tomorrow though.