Step 1- pressure wash, if possible
2- drop bucket or tool
3- raise and put on jack stands or blocks
4- loosen adjustment nut
5-take off nuts from front idler wheel
6-take off idler wheel with pry bars
7-take off track using pry bars and muscle
8-put grease on inside idler wheel to help slide new track on
9-slide new track on ( a ratchet strap and sledge hammer can help if necessary)
10- put front idler back on (don't be gentle a good solid whack with a sledge hammer will help reseat, but it needs to be close first)
11-bolt idler wheel back on
12- put a 100ish pound weight on the middle of the top of the track
13- put on a straight edge that spans the top of the track
14-tighten tension bar until the track is a 1/2 inch from the straight edge
15- take for a test run and then recheck the slack of track