Posted by Harold H on January 10, 2012 at 14:46:47 from (12.23.231.187):
In Reply to: Farmall Cotton Picker posted by Clint N on January 09, 2012 at 20:55:41:
Although some of the IH one row cotton pickers were built for the smaller frame Farmall tractors such as the B, the vast majority were built to mount on the Farmall H frame size tractors (H thru 460)and the Farmall M frame size tractors (M thru 560). These pickers were built in high drum models which were 20 spindles high, and low drum models which were 14 spindles high. When operational the tractor portion of the cotton picker operated in the oposite direction to a normal tractor. The normal tractor drive wheels were now the front wheels of the cotton picker and the guide wheel was at the rear of the machine. For a low drum picker to reverse the operation of the tractor, one removed the transmission top and flipped the differential and installed a reversed set of shift forks in the special transmission top which was machined on both sides for shift rails. This reversed the operation of the tractor portion. The drive tires were reversed so the tread would be facing the right direction and a single guide wheel was installed, or turned so the caster would be trailing if the tractor already had a single front wheel. For a high drum picker bull gear drop housings were bolted to the flange type rear axle housings of the tractor. These bull gears reversed the tractor without having to go inside the rear end and also raised the tractor for more crop clearence. The drive tires were turned so the tread faced correctly and mounted on the bull gear stub axles, and a single 750 x 20 guide wheel was installed. With the seat and steering wheel removed, both high or low drum, the tractor was then ready to mount under the cotton picker. The picking unit was powered by a gear box that mounted where the tractor belt pulley normally mounted and had a drive shaft to the header and a pulley to drive the fan or fans depending on model. When mounted all of the controls were on the high mounted operator platform with rods connecting the pedels to the original tractor pedels. Shields protected the plants from damage as the cotton was normally picked twice whereas now the cotton has been bred to mature all at once and modern cotton pickers only pick the cotton once, four to six rows at the time. In the Mississippi Delta most all of the cotton pickers were high drums because of the large size and yield of the cotton grown there. After the two row picker were introduced in 1957 sales of new one row pickers practiclly stopped in the Delta, and always went to the next biggest model when one came out, ie; one row, two row, four row, and six row, with the older models being sold to smaller acreage users in the used market.
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