Thanks for the suggestions.
I have a slightly smaller one very similar to your as shown.

http://www.homebrewit.com/aisle/1042

It has a one piece arm. It has quite a bit of sideways play. Maybe it is
just my stroke?



"Joe Sallustio" > wrote in message
oups.com...
> The arm should not be stiff and those jaws get food grade grease. They
> are held in with springs and under a lot of pressure. If you decide to
> take it apart mark where they came from. Mine has no chain and is
> blue, it's from Ferrari in Italy; it looks like this:
>
> http://www.williamsbrewing.com/FERRA...RKER_P1301.cfm
>
> Joe
>