Over the past month I have been using my new PowerSweep attachment for my FS 85. A couple of weeks ago, when I finished using it and needed to switch back to a trimmer head, I placed the attachment in my trailer, the gearbox connected to one of the 2 drums and the other one disconnected. Well, somehow in the trip home the clamping bolt that holds the attachment on tight came off. I had first noticed that the lube looked a bit watery and first thought that I had gotten water mixed in with it, but then it started to leak from the gearbox quite a bit and I noticed that the bolt was missing. The fluid was the gearcase oil leaking out of the place where the bolt goes. Has anybody ever had this happen before? Should I be worried about it since alot of gearcase oil has leaked out?