In late 1930, Pierce switched from the three shoe rod actuated Bendix system to the cable actuated two shoe system, called the Bendix Duo Servo. Your 1932 model would have this later system. The adjustment procedure is noted on the PASB bulletin and although it sounds complicated, it’s really a quite straightforward procedure, especially if you are only preforming an adjustment and not a complete brake shoe change. Follow instructions carefully, and you will have very good preforming brakes. Best of luck.