just hook an ohmmeter between the terminal and mount flange and move the arm it's full travel to see if the resistance range is correct, or close - if the resistance varies it works

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics