I too inherited the AM200F from my FIL. It’s a stout and heavy floor jack. There were no oil leaks and the ram was just slowly lowering under weight. So I just replaced the ram u-cup seal, size 22x40x12mm. I just removed the rubber plug on top of the cylinder and filled it to the top. I then...
I inherited one of these recently from my Father-in-law. I believe he had he jack for at least 25 years. The color is exactly as Mastermind described above. The jack says "Made in Japan" and seems to be a decent quality jack compared to the cheapos being sold widely now.
Here's one I found on Craigslist last week for $60. - beginners luck. I didn't know anything about Craftsman block grinders until I joined this site recently. It's an 8", 3/4 HP commercial model with stand, #397-19451. It's only missing one eye shield and it runs smooth and quiet. It needs a...