It is a tokhiem 505 , the 500 series pump. Have one and they are one of the heavies pumps, 900 lbs shipping weight. The top is cast iron and there is a lot of cast iron in this. Kind of complicated though with the preset dials and gears in there. Pictured is one that we did in general. Heavy pump and one that I can't handle anymore by myself. 12 x 27 is the size of the cylinder.
Craig, Dang, the next to last line caught my attention. I thought that I was the only guy getting to that point? I too could handle most of these alone, when I was younger, but no longer. LOL! Paul
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