Hello Sara Moseley,
You need to make a list of everything you offer and have. Then do a maintenance schedule. There is a lot to consider. I send two links for you:
Natalie aka NAPS 2 B Fit.
If you are looking to get gym equipment, you need the best prices & quality machines for the long run. WC Gym Equipment is the place to check out. www.wcgymequipment.com