I just finished the 50hr service on my '04 4110, my manual has a chart with items and service interals on pages 57, 58 and 59. Basicly its engine oil and filter, Hydraulic oil and filter and front axle gearlube and grease all the zerks. I also blew out the air filters and radiator fins since I'd been doing a lot of mowing. As for fliud I went to my local TSC store and got their Traveller brand universal trans-hydraulic fluid for the rear axle/hyd. 80w90 for the front axle and 10w30 for the engine.
Overall it was fairly easy, the only issue I had was getting the hyd. filter out of its housing. With the loader sub-frame installed a brace runs right next to the filter housing. I ended up taking the housing loose and tilting it up to pull the filter out then down past the line to the pump and reverse for installation,and be sure and have a drain pan handy when you take the cover off the housing, even with the system drained there's still a quart or so in the filter.
I hope this helps, Happy tractoring! Spike42