I've used an MMC power checkering tool for at least 25 years now. I had it overhauled once maybe 15 years ago. Since there is no service available for them now, is there anything I can do, like lubrication, to keep it going as long as possible? At 72 I can't really justify replacing it with a modern tool, but if it fell apart I'm not sure how I'd get along without it. Information and suggestions are greatly appreciated.

Bill Ferguson