Second that on checking ALL bolts on that tractor especially the wheel lug bolts and all mounting frame bolts for the FEL. Recheck them all again after about 50 hours of operation. When I got my LS, I found several bolts that were not even finger tight. Pay close attention to any bolt that looks like it may be hard to get a socket on. Those were the ones I found loose (accessible only with an end wrench). Lots of tractor owners have completely ruined back rims because the bolts got loose but dont forget to tighten the front ones also.
Whenever I buy something new, I go over every bolt and lube point to make sure they are tight and that gear boxes are full of oil and grease zerks have been greased. A little extra grease wont hurt a thing.