Discussion
Arrange these adjustments in the order an operator would normally try them when grain is being left unthreshed:
1. Reduce the feed rate to thin the mat
2. Close the concave clearance
3. Increase cylinder speed
4. Change the cylinder type for the crop
Select the correct sequence.
Answer: D
The cheapest and least damaging change comes first, then speed, then feed rate, and only as a last resort is the cylinder itself changed. Reaching for cylinder speed first is what produces the cracked grain so often seen.
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