New brakes binding

[Steve Bryant]

Once upon a time new brake shoes had to be trued up prior to installation by "arcing " them on a machine similar to a drum sander. The shoe was clamped and the pivot point adjusted  to  to give an arc of the same diameter as the inside of the drum. The shoe was then rotated on this set pivot point  or "arced" against the sanding drum to remove any high spots.

This gave a true curved surface that allowed the shoes to make full contact immediately without a bedding in period.

Stephen