I have a wierd problem with grain loss over the sieve. When I start combining my grain loss is very low, but as I keep going especially through heavy wheat my grain loss goes way up and I have to stop and let the combine clean out before starting again. I tightened the fan belt and this seemed to help but still will do it once in a while especially if I make the combine work. Now I don't know if this is normal with a gleaner? On our tr's we can make them work and still have low loss. One guy told me it sounds like I have a small seed kit installed. I might but couldn't see any baffles of any kind unless I don't know where to look. As you can tell I am totally new to gleaner. Any other Ideas what is happening here? Thanks.