Combines 2188 loads Right Side

I assume your sitting in the cab when you refer to RH and lH side of machine,yes the RH will always load more than the lH especially in tough conditions you can install rubber paddle by using hose clamps on RH trough auger that will tend to spread grain away from RH side, at rear of rotor exit beater always wore more on RH side I usually bolted 1_4 in angle over leading edge of beater. Hope this helps good luck!!!!

I assumed the machine was expected to load the left side as there is a fin on the back to direct material from the left side to the right on its way to the spreaders. With that fin in place, we probably end up with 75% of the material going to the right spreader. It does not look like the fin can be adjusted to go right to left.

Where is this fin located on machine, looking from rear of machine rotor rotates in clockwise rotation so the crop will first start seperating on the right side of machine that is were the heaviest deposits will be as crop rotates in the clockwise manner there will be less grain to seperate thus causing a lot of material to travel the right side of the machine