My 49 3100 has the same ignition switch. I have read that the 1 o'clock position was used on the farm so the boss could take the key with him when he left the work site and the workers could still move the truck if necessary by turning it back to 12 o'clock. They could then turn it to 1 o'clock to save the battery. Sounded reasonable to me! bartamos link was very informative.
Last edited by Forty9; 05/26/2020 12:08 AM. Reason: More info
