Does anyone know when Caterpillar started using that 2 prong battery key on its track type tractors?
Long before they built my 943 track loader in 1988. It fits all of these
Probably about the time the second machine was manufactured!!
Oldest tractor we had was an early 70s D7F that had them. Buddy had a D7E that had one, and a D7 3T but I don't know if it had one.
Excerpt from above
I only go back to the early 60s, ran both a 950 and 966 loader from that period that had that key.
why change what works,
Because some college engineer figured out a *better* thing that should work...
1962 is the first year I remember, but not meaning it could have been a year or two earlier.