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Heavy-Offset Disk Harrows
Heavy-Offset 790
Overview:
All-Purpose heavy offset disk harrow, with 10.5 - 12 inch blade spacing and 28 - 32 inch blades, comes as an all-urpose offset or plowing disk to perform a wide array of soil-conditioning tasks.
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Features
Frame Design
Designed for Durability
The Case IH Heavy-Offset disk harrows are designed to handle even the toughest conditions.
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Welded steel tubing for stability in the field and during transport
- Nodular iron spools resist compression up to 20 tons without loosening blades
- High-capacity bearings featuring Cushion Gang® flange bearings
- Self-leveling hitch keeps gangs working at uniform depth
Blades
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. Earth metal blades:
- Resharpen as they are used, improving performance over time
- Are 30% stronger and last up to 20% longer than conventional blades
- Resist stress fractures
- Feature shallow-concavity design for easier pulling and better fuel economy
Adjustments
Simple Setup and Adjustment
Adjusting the various settings on the Heavy-Offset 790 is easy, allowing you to respond to varying soil conditions and spend more time in the field. These adjustments range from easy gang related to mechanical depth control.
- Easy gang adjustments without tools from 34 – 46 degrees with an easy-turning crank that fine-tunes front-to-rear leveling
- Rear gangs adjust laterally to changing field conditions with the ability to line up with front gang furrows as desired with pin-type adjustment
- Mechanical depth control provides accurate, repeatable depth with pin-type adjustment. Makes depth control quick and reliable and eliminates risk of hydraulic leakage
- One-step lateral pin adjustment for tongue placement maintains draft compliance
- Transport lock U-channels and rear chain attaching points
Specifications
| Disk Harrow Type | Offset |
| Folding | Folding |
| Min Working Width ft-in | 20ft 6in |
| Max Working Width ft-in | 27ft 2in |
| Min Total Weight lb | 8500 |
| Max Total Weight lb | 15500 |
| Number Of Widths Available | 3 |
| Disk Blade Spacing in | 10.5 |
| Disk Blade Diameter in | 28 |
| Blade Edge Profile | Notched |
| Optional Blade Edge Profile | Smooth |
| Gang Mounting To Frame | Fixed |
| Front Gang Angle - Degrees | 34 to 46 included angle |
| Rear Gang Angle - Degrees | 34 to 46 included angle |
| Disk Bearings | Self-aligning, cartridge type ball bearings |
| Gang Arbor Bolts in | 1.5 |
| Disk Spool Diameter in | 6 |
| Disk Blade Scraper | Spring type, adjustable |
| Transport Wheel Mounting | Two sets of side-by-side tires with axles on rockshaft wheel arms |
| Transport Tires | 12.5 x 15FI |
| Optional Transport Tires | 31-13.5 x 15 terra rib |
| Hookup To Tractor | Pull-Type |
| Typical Operating Depth in | 11.2 |
| Depth Control | Mechanical Depth Gauge |
| Fore/aft Leveling | Turnbuckle with locking pin |
| Required Power - Low hp/ft | 12 |
| Required Power - High hp/ft | 17 |