You need to adjust the tension on the hydrostat lever. If I am incorrect, someone please correct me. There is a bolt that is just below the dash behind the side panels. It runs perpendicular through the dash. Tighten it a little. Doesn't take much to make a big difference. Check in the "technical" section. There you can download a chassis service manual for your machine. It will walk you through it if you have questions. Oh, and