Need info on Electrical Schematic for a Surty Control System that is for a Brake we have.

Hi, We are a small mom and pop sheet metal fabrication shop in Maryland. We have been in business for over 20 years. I have a lot of old machines in our shop.
We are looking for any information on an Electrical Schematic for an after market Surty Control System for our brake.
The control system we have is a Model 102
Serial # 82117
Drawing # 60426
Volts 480
Amps 60
Phase 3
Hope someone out there can give us some direction or guidance on where to look for one of these schematics.
Thanks in advance.