On 22 Dec 2004 15:28:43 -0800, "russell shigeoka"
wrote:

I just refurbished a CM 3-ton puller. Does anyone know the purpose of
the "Weston brake system" on these pullers?

http://tinyurl.com/69mhb

It's an important safety feature preventing the load from freewheeling
if you let go of the chain. Boat lifts like Shorestation also use
Weston brakes. They are interesting mechansims.