Here's a front shot of the machine. Sealed unit and you can sterilize the hole frame. The motor comes out in a sleave as a unit with the RCA so you can change the stroke just like the Treasure Chest. Then you can sterilize the frame as a unit. The give springs are preloaded and changed via the set screw in the top of the piston. No figuring out where you had it last, just put the same spring in and you are done.
Rapier III 001.jpg
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