[Amps] Alpha 77 blower

[Jim Barber]

Hi folks,

I have an otherwise excellent black-faced Alpha 77 whose blower is 
starting to growl a bit here and there.

No doubt this has been covered in depth elsewhere, but not having found 
it is there any way for someone with only average mechanical skill to 
service/replace the blower bearing(s), or perhaps the whole unit?  I 
understand from his website N4UQ will do the repair, but I would really 
rather not ship the monster if I can avoid it.

Thanks,
Jim Barber, N7CXI