|
| Sorry, I use the word "impeller" as a general word to describe whatever style front is on a machine. Anyway, IMO when its dry, pretty much anything will feed well cause the stems can beak up and move rearward like they're supposed to. When it gets tough, the stems become "ropy"?? and try to stay in one piece as much as possible.
When you lower the header to cut height, you can see the angle that the material is being shoved into the rotor at. It is litterally pushing it right into the rotor front bearing. On the passenger side of the rotor center, the rotor flight is grabbing the material in a downwards motion. The centrifugal force is trying to push the material outward off the flight. Follow my jibberish so far??? As the rotor flight sweeps around the bottom and comes upward, when the stems and material are tough, the rotor flight has carried the material further around the circle with less rearward motion of the material per inch or foot or?.... travel around. IE the tough stems dont slide along the flighting as well as dry stems, and as such the flighting ends up "pushing" the stems and material around in circles till enough new material comes in to force it rearward. ?? follow me so far??
Now, if there is a big gap between the rotor flight and the "kidney" bearing support, when the material gets pushed by the flighting, it will get pinched between the bearing support and flighting edge in attempts to cut it or force it outward by the shape of the kidney so it can grab the transport vanes and move rearward. With that gap being full of material all the time pinching rather than cutting, it takes a bunch of power to do nothing. It also builds heat and if the anti wrap cutter inside the bearing support is worn, you'll get some material wrapping around the rotor support shaft and cause bearing failure.
So, what someone somewhere did many years ago, probably in tough soybean country, was to take out the impeller wear blades and build them up with weld and sharpen them back till they just fit with about .030" clearence or so between the kidney and wear blade. This gave a quite effective cutting action to the material so it could move rearward with each revolution of the rotor rather than push the material in circles. As time went on, some others caught on to this and made their own wear blades, which some like me call a knife. Now days they make them with slotted holes for adjusting close to the kidney. Then it was noticed that a good square edge on the kidney would help cut even better. So someone started chroming the wear edge on the kidney. Ok???
So now the factory offers a device you can install on your own kidney or a kidney from the factory with it installed called a "anti-wind" strip. It is a sharpened wear strip for the kidney that keeps the edge somewhat square and sharp. That device alone will help some. However if you can put a counter devise on the rotor flight to act as a scissor, it will be an incredable new machine in tough material.
DISCLAIMER: that is if the problems you have are do to the gap between the rotor flight and kidney. You'll have to determine that for yourself.
Here's a couple pics of what my machine looked like with the old implellers in.
 (Old Pictures 112.jpg)
 (Old Pictures 109.jpg)
 (IM000414.JPG)
Attachments
----------------
 Old Pictures 112.jpg (95KB - 173 downloads)
Old Pictures 109.jpg (103KB - 176 downloads)
IM000414.JPG (42KB - 182 downloads)
| |
|
harvest rotors not feeding? asap
