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Frequently Asked Questions

How much horsepower does the Horizon lawnmower blade style head require?
The Horizon lawnmower blade style head requires 18-20 horsepower per row.

How much horsepower does the Rota Disc head require per row? The Rota Disc requires a mere 2.5 - 3 horsepower more than the NorthStar per row for a total of 8.5-9 horsepower per row, which is about half as much horsepower than a lawnmower blade style head.

How much horsepower does the NorthStar head require per row?
The NorthStar requires approximately 6 horsepower per row.

What is the proper angle to set my head at during harvest?
Geringhoff recommends the NorthStar at 22 degrees and the Rota Disc at 25 degrees. The angle is measured off the deck plates.

What kind of oil should I use in the gearboxes?
  • NorthStar row unit gear box - 2 Liters of 80-90 non synthetic oil
  • Rota Disc row unit gear box - 1.5 Liters of 80-90 non synthetic
  • Miter and crown gear box - 1.5 Liters of non synthetic