[Tf175]

On a recent trip in our 86 , the generator stopped running while we were travelling . Indicated oil pressure was near 60 psi , temp 155 on console gauges . We heard a " clinking " sound and I immediately noticed that the AC voltmeters were dropping to zero and the generator had stopped running . Gen had been running fine for about 14 hours . Oil level on the full mark . After about 45 minutes I tried the start switch and the generator fired right up and ran fine for the rest of the trip , about 2 hours . Evidently the hour meter doesn't work , but has something over 2,500 hrs showing . 
 I noticed that the front roof AC seems to be drawing a lot of current , 16 amps on the overhead ammeter . The gen was really laboring at times when running all 3 ac units . No breakers kicked , but at one point the relay / contactor above the dash was clicking . All this prior to shut down .
 I want to check the brushes and slip rings . Looks like the options are : remove genset . Access through cooling fan hole . Cut out part of gen compartment floor and replace after repair . For me , removing the unit is probably going to be the best way to go . I'm thinking of slicing off the slide out limiter , then use my engine lift to ease the whole thing out . This way I should be able to get the unit out without disturbing the radiator , etc .
 This was first outing with our fully loaded race trailer and the old coach pulled it with no problem . Very happy about that .
Any advice much appreciated . Forgot to mention , also have new fuel filter to install .
Thanks ,
Chris