Try tractordata.com . Is this a farm tractor or backhoe , dozer , etc. ? Sorry not familiar with model . Don`t see any E suffixs listed after model no but 310 was listed as 34 pto hp.
Rich, if you go to deere.com, construction equipment, non-current equipment, backhoe/loaders, it will eventually lead you to the 310E in .pdf format. 76 gross and 71 net hp. Very nice machines. We bought a new one when I was vice president of our local water co-op a few years ago.
Now of course that's a John Deere 310E, not a Case. /forums/images/graemlins/wink.gif