RV Repair: microlite 4000, jim yeager, best guess

Question
I HAVE A MICROLITE 4000 MOD# 4KYFA26100A  SER#G930052565
IT HAD ABOUT 500 HOURS ON IT AND THE ROTER FLEW APART AND DAMAGED THE STATOR.WE HAD THE GENERATOR REBUILT COMPLET.IT RAN ABOUT 20 HOURS AND HAPENED AGAIN.WHAT COULD CAUSE THIS PROBLEM.WE BOUGHT THE CAMPER USED WE DO NOT NO HOW MANY TIMES THIS HAS HAPEND.THE FIRST TIME IT HAPEND WAS JUST BEFOR WE BOUGHT IT.PLEASE HELP THANKS JIM YEAGER

Answer
Jim, It sounds to me like it was not rebuilt right. Something wasn't replaced that needed to be. Was it repaired at a shop? If so they should warranty there work. If not then I think I would have a shop at least look at it and give you their best guess as to what happened. Thanks, Bill