docs for discontinued ats

[bigbangisamyth]

Good day,

I am new here, excited to learn from such talented colleagues in this community. I hope someone out there can help. I cannot seem to find an appropriate solution online or through technical support. I am looking for documentation for an old ASCO 940, 100A ats. (catalog# B940310044XC, serial# 938977) I need to troubleshoot the unit, but the original manual is missing. All of the manuals online, for that model, are for an updated unit and does not apply to my situation. The newer units are equipped with dip switches to control timeouts; however, my unit has a manual timer. If anyone out there has access to one of these, or maybe a lead to old obscure manuals please let me know. This is a redundancy to a critical system that is rarely needed, but a malfunction can actually render the entire system useless creating a hazardous situation. I work for a state entity, so replacing this would require an overwhelming amount of red tape, of which I do not wish to cut through unless absolutely necessary.