On the FL14B; release the track adjuster tension by carefully releasing grease out of the adjuster cylinder inside the roller frame. There will be a cover over that release plug on top of the roller frame somewhere's. Place a large pin or something big and hard in the sprocket near the rail and carefully reverse that track untill it's pulled the adjuster and the front idler all the way back so the track assembly is very loose. Either unbolt the master links, or push the master pin out and let the track down flat on the ground. I don't remember if the idler on these is bolted to the adjuster rod to where you can just remove those retaining bolts, or if the adjuster rod and fork have to come out with the idler. In either case, roll the idler ahead untill it clears the roller frame and lift out. Reverse order to install.
Good Luck!