42-47 manual shows mechanical switch, although I do recall some years or models with the hydraulic switch, maybe a big bolt thing or COE?

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