Kust got the a new 6088. Things were going good for the first couple houndred acres, other then a few bolts comming loose on the Head. The only major issue that we had at start up 10 mins ago was that half way accross the feild the header quite and the the A post woud not read the the rotor speed on and speeds. as this happened to any one else?? What are some of the common Problems to watch for???