Deere 310 Backhoe, need help IDing light switch terminals

I did the thing NOT to do...disconnect wires and forget where they go back... Well, sort of, actually I DID make a diagram, but can't find it. Anyway The manual shows four terminals, the light switch actually has six terminals. The main feed (wire 6C) is obvious, the yellow and orange pair for the flashers (#13 & #14) go to the FL terminal, but where do the blue pair (#17 & #18) and the pink wire (#19)attach?



Thanks

Deere 310 Backhoe, need help IDing light switch terminals