Lister ST1 Startomatic 3.5kVA Electronic based unit help

[Dash]

Hi,

I recently picked up a 3.5kVA ST1 based startomatic with a brushed gen/starter head, the unit is based on the newer electronic style SOM system. The set has around 70 hours on and is in good condition though the SOM box is badly corroded along with some of the relays.

Would anyone have the diagram for these Electronic based units, worst case I could work back to figure it out but thought to see if anyone has the info, all the relays are corroded beyond use as pins are broken or missing, so I'll work my way round that ; they look like ones you can get now with a modern equivelant, but I may have to add them externally to the boards and remove the old holders as the pins are gone in some from rust


IMG_20241027_095327 by TwirlyWhirly555, on Flickr


Thanks, Dash