We do not have a universal preventative maintenance schedule for our tables and chairs. All moving parts are self lubricating and the motors are thermally protected to avoid overheating. Any specialty preventative maintenance would be listed in the specific user manual for that product.
If you need technical assistance in identifying a part or group of parts to fix an issue, please contact our Service Department with your serial number. They can be contacted M-F, 9am-4pm at 1-877-445-5020 or by email at Service@HillLabs.com.