Great photo on another website of R-32 trucks @ Coney Island Shop. Noticed that each motor has three leads. Conventional practice on railroad is four leads (two armatures & two fields). Without seperate field leads, how does subway motor reverse?
I don't know what photos you're looking at, but all the photos that I'm about to link below clearly show four leads on each motor.
http://nycsubway.org/perl/show?142381" onclick="window.open(this.href);return false;
http://nycsubway.org/perl/show?100280" onclick="window.open(this.href);return false;
http://nycsubway.org/perl/show?130316" onclick="window.open(this.href);return false;
http://nycsubway.org/perl/show?31735" onclick="window.open(this.href);return false;
http://nycsubway.org/perl/show?133604" onclick="window.open(this.href);return false;