V730 transmission PTO question.

[bigjohnkub]

John, my 4903 has an altenator mounted under road air. I wondered what it was for since their is no wiring and it is not in the book. Big john

[roadrunnertex]

OK,it's a 48 volt alternator and it was used to provide power for the A/C condenser fan.
The later mpdel GMC Buffalo's used a 24 volt condenser fan motor so the extra alternator was not needed. 
jlv

[Barn Owl]

I know the 4106s used hydraulic motors to operate the condenser fan.

[johnjem]

u can have mine u just need to remove it  john    e-mail me if u want it    johnjem@comcast.net