this is my first post so forgive me if I am writing about something that makes all you harden lister veterans eyes roll.
I have purchased a 6/1 SOM which I am struggling to find any details of or even an image of one that looks like mine.
The only eye-rolling will be jealousy that you have an interesting - possibly unique - machine! I've seen Listers set up with a direct shaft drive to a DC generator/dynamo (this was usually the 9/1, which was basically a single cylinder JP engine rather than the usual CS, one solid flywheel).
Basically it came out of an Exeter police station ... I am guessing it is quite an early one.
If you've got the serial number - from the info plate, it'll also be stamped in the outer rim of each flywheel if the plate is missing, then we can date it to the nearest year.
The strange thing is it has two gen heads connected by a shaft , one says "generator" on it and I have put 24V into this and the belt happily drives the lister and starts it , the other head says "alternator" 220 -240v ....
My question is I cant work out how the batteries get charged the "generator head" does not seem to put out any voltage (yet happily spins when I apply voltage , is there a blocking dioide preventing the current going back??)
Alternators are a black art to me, I'm afraid, although there are plenty of knowledgeable types here who will surely come up with an answer. As to the generator - that's presumably the original 2.5kw Lister unit; it should take 24v DC to start, the SoM box then does some trickery which starts outputing 250vAC. Or should do. Could be you've got a burnt out wire somewhere. I don't recall if these need residual magnetism to generate. Unfortunately, my own original SOM generator is toast, I've had to replace it with a boggo ST5 alternator & separate starter motor.
Anyway, as Oiler said - pictures are always welcome! If you re-size any pictures down to 800x600 or thereabouts, you can attach them directly to a message (click "Attachments and other options, below the message edit box); we also have our own photobucket-a-like hosting service, there's details in the Members Only forum as I recall, or maybe the General forum. It should be a sticky post & therefore at the top.
Cheers!
Ade.