**** had a part of my trusty cassese break .... the plunger block busted. so need the whole assembly. parts 718 , 721 (pin is bent) also says d1 (not sure what that is) and s1 .. basically the whole assembly needs replacing. If anyone knows of a parts resource or has a machine that they might part out let me know. I've tried LJ tech support ... they don't have the parts.