help with an Indian 4kva gen head

[greasy_burger]

I had recent problems with the indian genhead, first it stopped putting out power on one leg, i traced it to the pictured board and found and repaired a disconnected wire, today same problems again but this time no power, upon removing the cover I found the wires diconnected and at this point I can't tell what goes where, can anyone either tell me where things go or remove and shoot some pics for me, here is the pic of the board.

[MacGyver]

Good lord.... what's with all the diodes? There must be 30+ of the damned things in there!
Guess they couldn't afford to use a decent rectifier so they paralleled a bunch of inadequate ones?  Weird...

[dieseldave]

   Another thing is that you can only parallel diodes for intermittent use.  What happens is a thing called 'thermal runaway'. Unlike a conductor,if one diode runs hotter,it draws more current,more current,more heat........and so on until it burns out. Diodes are dirt cheap at the wholesalers,get bigger ones.

   The wiring,I am note sure of.

[M61hops]

Sorry Greasy Burger, can't make much sense of your problem from this photo.  If I was having your problem I'd trace all wires and make a wiring diagram and go from there.  I had a 7.5kw indian made head and all the load current went through the brushes, rotor and those diodes  .  The rotor and stator were in series and the diodes rectified the current that went through the rotor so that there would be a consistant north and south poles to the rotating magnetic field that generates the power output.  The generator worked great but I was worried about what would happen if the diodes were to fail.  This design seemed like it would be prone to failure and/or short lifespan due to the diodes and brushes having to carry the full output current.  I got rid of my indian head for a chinese ST style because I thought the brushes and rectifier would last better.  I've had bearing problems with the chinese head though  .  Oh well...                                           Leland