A feeding issue in peas at high feed rates (50+T/HR) got me to thinking about this. The slower cylinder speed used in peas (300 to 400) aggravate this. A 780 is at least a 70 T/HR machine in peas.
Feeder would make an odd noise for a short period of time before plugging the feeder, the APS, or both.
SWAGged that material was feeding above APS shaft centreline packing material at top of feeder house. The 36 degree (-36) backswept angle, smooth, APS caps acting too much like a paddle and not enough of a material advancing device.
Sunnybrook working with me on this project.
The lessor steep, used paddle in the pic is -14 backswept, that eliminated the feeding issue I have observed in peas and header limitation became the new limit. ****, it’s always something, I want engine power limit! About 150 seperator hours on that paddle.
The more erect paddle is zero “0” degrees to shaft centerline. Ran about 1.5 hours in flax and about three hours in swathed canola. Season then ended preventing further testing.
The 0 paddles will only have less feeder rattling and maybe reduced dust, the higher rotating speed and material nature will not lend to any difference in feeding wheat or barley.
Paddles were changed from -14 to 0 mid afternoon, couldn’t tell any difference in the flax feeding wise between the -14 and 0 degree paddle but running feeder house depth was only 35 to 50.
Dust may have been reduced at the feeder house by 0 over the -14 but wouldn’t hang my hat on that.
Rattling of feeder house was less at high canola feed rates with the 0’s.
- Eliminates feeding issue in peas
- Reduces noise emitting from feeder chain area at high feed rates
- Reduced feeder house entry dust
- Rock protection
- Possible APS drum wrapping with crop material
- Reduced seperation at APS concave (irrelevant in wheat and canola as well as 12 section rotor separation)
- Or...maybe the notched leading edge will thresh/and/or separate better
More testing required:
Sunnybrook will have samples at Agritrade this week in Red Deer, the ones in the pics to be exact.