Nissan 24 volt battery wiring

[flyingbrick]

Hi all. Posting this from a cell phone so please excuse me if this comes out a mess. I need a basic wiring diagram showing which wires in where in a 24v safari engine bay. Im talking about the cables attached to the four battery terminals. One of them i believe goes to a big round steel can that sits under the washer bottles and i think thats the one that i an having trouble placing. A real simple description would be adequate to make sure what iv got+is+correct.+
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I+would+post+pics+but+cant+