How to field-test header width and threshing loss rate for combine harvester acceptance?
• Measure header width against nameplate; ±2% tolerance accepted.
• Use 1 m² drop cloth for threshing loss; grain loss ≤1.5%.
• Impurity ≤2% and breakage ≤1.5% as industry acceptance.
• Test at 80% rated feed rate to check cleaning loss.
• Stubble height deviation within ±1 cm or adjust header float.
• Use 1 m² drop cloth for threshing loss; grain loss ≤1.5%.
• Impurity ≤2% and breakage ≤1.5% as industry acceptance.
• Test at 80% rated feed rate to check cleaning loss.
• Stubble height deviation within ±1 cm or adjust header float.