I was able to find most everything technical right here within this great forum !!! I've replaced my battery, had to reset the machine a couple of times, etc. There are links to how to do about anything you would need right here, just a matter of doing a search and finding it.
I did order a full service manual for my machine, but it was years ago. I'm sorry but I don't recall where I purchased it from. I'm pretty sure it was on eBay. I just checked, there are plenty of choices for the manual on eBay now.
As we don't play the machine much, and it's in our finished basement game room, after hitting a full blown jackpot, I turned it off, leaving it with the jackpot still showing. Haven't touched it in the past 18 months.