Alternator ID for 1982 Excella 28' Motorhome
Thanks, Brad -
When an alternator fails underway, I also start the Onan. I then install a heavy duty jumper from the house batteries to the engine battery so as to charge the engine battery with the Onan. I also remove the connections at the alternator in case there is a condition inside the alternator that could result in battery drain. For starting the engine under those conditions, I engage the auxiliary start switch ( 'places the house batteries in parallel with the engine battery). I believe this is operationally consistent with the process you described. Your method, however, is a lot more convenient than what I do.
When I stored the Airstream at the general aviation airport in Anchorage yesterday PM, the alternator appeared to have failed completely. When I first noticed a no-charge condition a week earlier, it lingered for about 15 seconds and then resumed charging. That happened again about 20 minutes later during a 100 mile trip. My plan now is to replace the alternator rather than buy a rebuild kit for contingency. We use the Airstream only during summers in south central Alaska. Summer is now over and we left for our Texas home last night. 'Will replace the alternator before returning the Airstream to service summer '10.
Thanks much for your comments.