I have never used the Hustler Mini Z 25 hp/52" to cut an overgrown grass lake lot/field. It is about 2 acres and pretty thick since it has not been mowed all year. Got a good price to cut it and keep it up but not sure if their are any precautions to take related to the mower for the first mowing. For this tall of grass/weeds do I need to stop for after 1/2 hour or 1 hour to cool down the engine/oil? Is this going to put to much of a strain on the engine even if it cuts the grass okay?