Hey guy just went to look at a John Deere 494 planter it says 494 and then something below it that I can’t make out what would that be any ideas? Also are these planters or can they be made into 30 inch row spacing. I can’t tell what this one is since he has the outside boxes way apart and the inside real close. These are hydraulic lift correct? It has the seed boxes on it and he said the fertilizer boxes are some where along with the plates. I’ve seen some with 2 long boxes that sit in front of the see boxes what are these. I’m green to planters so any help would be great. Also are these planters really touchy on the type of seed you put in and constantly changing plates?