Need a little bit of info or help here my b7100 broke today I was mowing with my 60 inch woods finish mower running along in second gear high range and the thing bogged down and died .It was hard to get out of gear put all into natural and restarted engaged pto and let it spin up then put trans back into 2 high range and was nothing tried first and was able to finish my mowing when I got done mowing I checked all the gears I find I have first gear low and high but no 2nd ,3rd or reverse also only have pto #1 though I only ever use #1 pto but #2 and #3 pto are inop as well .. need to figure out what to do to get it fixed as it is my primary mowing machine for my 5 acres and the push mower won't cut it so I need some info or guidance as to what to check or where to start . I work on trucks but am not a gear man .I have never had a tractor trans apart only a few car 3 and 4 speeds about 15-20 years ago . any suggestions would sure be appreciated thanks merril "motorhead540"