Good. Looks like you'll be pulling the lift cover for service. YT has the repair kit which includes the gaskets, seals, and O-rings, link below. The FO-20 has adjustment procedures which do not require special tools. By "refresh" I mean inspect, service worn or bent parts, replace seals, gaskets, and O-rings, and adjust. Some of the hydraulic valves can get stuck in their bores and cause a no-
lift situation so don't neglect those.