Welcome to the pack!.. The only advice I would give at this point is check all the wheel bolts and loader bolts for correct torque. You previous owner probably checked them several times, but who knows for sure. Also I would grease it first thing just to be sure.
Something you may or may not know. Hydraulic leaks are dangerous to your skin. The fluid can come out in a very small stream and inject your skin/meat with hydraulic fluid. This is VERY VERY bad. The photo's of the reaction to the injected fluid, are graphic and frightening. You can hunt for leaks wiith a piece of paper or cardboard, but do not get your hands near a leak under pressurization.