Innovative Design
Case IH Heavy-Offset 790 disk harrows feature state-of-the-art engineering and construction. The machines offer unmatched ruggedness, dependability and consistent performance over years of use. All models are built with:

• A mainframe of welded steel tubing
• Square, steel, arbor bolts
• Nodular iron spools
• High-capacity bearings
• Easy gang adjustments
• Self-leveling hitch
• Mechanical depth control

Nodular Iron Spools
Unlike steel-fabricated spools on other brands, Case IH cast nodular iron spools:

• Resist compression up to 20 tons without loosening blades
• Add greater blade support with bell-shaped design
• Provide better residue flow with hourglass middle

High-Capacity Bearings
Flangent and Cushion Gang^® bearings feature:

• Finely ground inner rings
• Heavy steel sleeves that distribute shock loads along the arbor bolt

All bearings are:

• Regreasable for extended life
• Triple sealed to repel debris and moisture

Easy Gang Adjustments

• Gang angle: Adjustable from 34 – 46 degrees; Adjusts without tools
• Rear gangs: Adjust laterally to changing field conditions; Line up with front gang furrows as desired
• Easy-turning crank; Fine-tunes front-to-rear leveling

Self-Leveling Hitch

Self-leveling hitch

• Exclusive to the Heavy-Offset 790 disk harrows
• Keeps gangs working at uniform depth from front to rear
• Transfers weight between tractor and disk
• Allows even soil penetration on hills

Spring-cushioned hitch

• Helps ease blades over obstructions

Convenient dial

• Centers disk behind tractor
• Minimizes draft
• Adjusts by simply pulling pin and repositioning hitch

Mechanical Depth Control

Mechanical depth control

• Provides accurate, repeatable depth

Pin-type adjustment

• Makes depth control convenient, quick and reliable
• Eliminates risk of hydraulic leakage affecting disk depths
• Repeatable accuracy

Earth Metal^® Blades for Exceptional Endurance
All Case IH Heavy-Offset 790 disk harrows are equipped with Earth Metal blades. Uniquely formed and heat treated, Earth Metal blades offer exceptional endurance and break resistance for longer equipment life. The notched blades aggressively cut residue and vegetation with excellent cut uniformity.

Self-Sharpening

Earth Metal^® blades actually resharpen as they wear.

• Provides superior cutting performance over an extended blade life
• Helps prevent down time and maintenance labor
• Lowers blade replacement cost

The performance of Earth Metal blades actually improves as they are used, while conventional blades lose their sharpness with wear.

Long-Life Durability

Compared to conventional blades under identical conditions, Earth Metal^® blades:

• Are 30% stronger
• Last up to 20% longer
• Resist stress fractures
• Feature shallow-concavity design for easier pulling than conical or spherical blades and promotes better fuel economy