Hello. We just bought a new yard tractor (arriving friday). This will be our first tractor and I just wanted to see if there is any special things to look after with a hydrostatic transmission? The tractor is from sears, http://www.sears.com/shc/s/p_10153_...=Category|View+All+Tractors^storeOrigin|Sears . We've never owned a hydrostatic transmission tractor so I just want to make sure it will last. Any things to look after, or any tips for keeping it running good?