I have a Onan 15kw PTO generator, it was working good only uses it when power went out. Power dose not go out offten maybe two to three hour a year. but once in a wile longer if we have a ice storm. I was running the generator and the cooling fan came apart and damaged the windings. This generator is an older unit, If any one had one setting around or knows where there is one I would be very intrested in it. The unit I have is a 15KW onan 540PTO unit model 15VF-3N104-1A.