

Sargent Door Closer
Hello, I work at a facility that has some older Sargent electric door closers that are working intermittently. They are on the older side, and I was able to find a sticker inside one that says:
2400/2500 closer/holder input voltage24V DC regulated current250MA max for use with Sargent 350 series closer body only Sargent mfg co 01-0990C.
I'm looking for manuals on this thing - any still available? I've reached out to the manufacturer, and they don't have information on legacy components.
Any assistance would be appreciated.