had an issue awhile back with a dover t4 and a westinghouse machine, had to get a micro switch from granger's with a long arm and a roller on it, made a bracket and had the micro switch set to breake as soon as the brake moved (brake was very slow to pick), with the long arm on the mico i could bend it to get a little more action out of it. i took the route over on a new contract and on all 6 units someone bypassed the brake switch!