[Tf175]

Your engine likely has the same set up as our '86 , a system that will shut the engine down if it overheats . As Michael posted , the override switch is there to allow the driver to re start in order to get off the road . I will post a picture of the page in the manual that covers the operation of the safety system . Best to keep a weather eye on the temp gauge , take evasive action if it starts climbing rapidly .
I'll try to get more info posted , pics of pages that cover the heating issue from the manual .
Chris