Hey Harry,
I have a White 5400 planter that gave problems last year. It seems to me that some units drop too many seeds, others not enough, sometimes one or another unit will get spotty. I think some of this is due to old drive chains. Since it is prone to breaking chains, I bought all new ones. I have removed 2 of the units, as 6 row is not suitable to farming here, too big, but 4 row will work, and is beginning to become popular. Most folk still use 2 row. I have a NOS monitor and control box, but it is 6 row. Is there some way to change this to 4 row? My monitor is the SM-1 unit. Another thing, do you know if there is a way to test the seed drop sensors? I have cleaned them, but would like to check them individually to make sure they all work. As for the blowers, is there a speed specification, or some way to check airflow? One I replaced with a blower motor for a truck heater, it seems to work like the others. All the rest I replaced the ball bearings, and the insides look good. I think it might be good to replace the chrome seals for the seed disc, they appear to be worn about half way down. It seems to be a fairly good planter by West Virginia standards, of course here we rarely use new, but we don't have big farming operations either. It just has some bugs I need to figure out and fix before spring planting time. I will be planting some Hickory King corn, which has large kernels, and is open pollinated, maybe an acre to grind into meal. But mostly I will be planting soybeans. Which brings up the question of seed size. This year I planted mostly Dekalb seed, 3,400 seed per pound, I ran out and couldn't get the same seed, I used Pioneer, which were larger, the planter wouldn't drop the larger seed, I was using the 247 547-B seed disc for this. Is there a ideal seed count to use with this disc? Also, what about the brushes behind the seed disc, mine has I guess a bristle brush, the parts book shows two different styles of brush, which style would work best for me? There is considerable rust in the area of these brushes, can you tell me how they are held in, and will I need to buy fasteners to replace the rusty ones? I am hoping to get this planter working correctly to use this spring. The tractor does have a 110 amp alternator. I tried to phone you, but the number in the new directory is incorrect, the message said it has been changed.
Thanks,

Have a great day!!!
Andy