I’ve been having an issue with my Electrall side mount generator on the 400 for a while now, and I’ve had no success diagnosing it so far.
First off, I’m not 100% sure I know how the ‘exciter’ works with the Electrall. Does it just feed DC electricity to the main generator’s field? 12V? Variable voltage? Variable current? How many amps does it put out at full load?
The issue I’m having is this; It started out a year or two ago not wanting to self-excite, and I’d have to flash the field by putting 12V from the alternator or battery terminal on the tractor to the armature lug of the exciter generator, and it would work fine once it got to charging. Lately, however, I’ve been having less success with this method, and the last time I used it on a 3-phase fan, it would surge the fan on and off in a constant, 3-4 second cycle; until it tripped the overload on the side of the Electrall. I’ve got the correct voltage at all 3 fuses in the side panel, and I don’t know where to proceed from here.