Combines Grain Head Speed

same way, you just have to hook up the hose to the varible speed feeder house,bump your backshaft speed to no more than 530 or 540, unhook hose(may require a hammer to un couple ) and hook back up to header. or you can try to adjust your drive belt on feeder house. make it a little tighter. just try not to go over 540 rpms under load. may raise hell w_ wobble box if ya get much higher. it works for me,be it right or wrong I don't know. mit9750

You want to run the grain head slow. If you speed it up, you will wreck the sickle or the sickle drive. I believe your operators manual tells you to slow trhe feeder house down as far as possible before attaching the header.

Nope. I run a Pro-Drive. It is bomb proof.