| Model | 9660 STS |
|---|---|
| Years Produced | (2004-2007) |
| ENGINE† | |
| Horsepower, Rated - hp (kW) | 305 (227) |
| Horsepower, Maximum - hp (kW) | 338 (252) |
| Power Boost - hp (kW) | 33 (24.6) |
| Engine Make | John Deere |
| Engine Model | 6081HH or 6090HH |
| Number of Cylinders | 6 |
| Piston Displacement - cu in (L) | 496 (8.1) or 548 (9) |
| Emission Tier Level | Tier 2 or 3, transition |
| Fuel Tank Capacity - gal (L) | 250 (945) |
| Diesel Exhaust Fluid (DEF) Tank Capacity, gal (L) | No DEF |
| FEEDING SYSTEM† | |
| Feeder Width - in (mm) | 55 (1397) |
| Feeder Speed Variable | Standard |
| Feeder Reverser Control | Electro-Hydraulic |
| Feeder Tilt Adjustment | Fore-Aft and Lateral |
| Stone / Rock Protection | Manual Box |
| THRESHING & SEPARATING SYSTEM† | |
| Threshing System Type, Rotary or Conventional Cylinder | Rotary |
| Number of Rotors or Cylinders | 1 Rotor |
| Rotor or Cylinder Description | Single Tine Separator |
| Rotor or Cylinder Diameter - in (mm) | 30 (762)threshing / 33 (838)separating |
| Rotor or Cylinder Length - in (mm) | 123 (3124) |
| Rotor or Cylinder Speed Range - rpm | 210 - 1000 |
| Threshing Area Wrap - degrees | np |
| Concave Adjustment | Electro-Mechanical |
| CLEANING SYSTEM | |
| Total Sieve Area - sq in (sq m) | 7,097 (4.58) |
| Leveling System Available | Optional |
| Cleaning Fan Description | 12 Blade - Scroll Type |
| Cleaning Fan Speed Range - rpm | 500 - 1200 |
| GRAIN HANDLING SYSTEM | |
| Grain Tank Capacity, Standard - bu (L) | 250 (8810) |
| Optional Grain Tank Capacity - bu (L) | 300 (10572) |
| Unloading Rate - bu/sec. (L/Sec) | 2.2 (78) |
| Unloading Auger Length, Standard - ft-in (m) | 21' 5" (6.53) |
| Optional Auger Length - ft-in (m) | 22' 5" (6.83) |
| Reach from Machine Center, Standard Auger - ft-in (m) | 23' 8" (7.26) |
| Reach from Machine Center, Optional Auger - ft-in (m) | 25' 1" (7.66) |
| TIRES and TRACKS | |
| Reference Drive Tire Size | 30.5L-32 |
| Steering Tire Size | 18.4 x 26 |
| Rubber Tracks Available | No |
| WEIGHTS and DIMENSIONS, without Header | |
| Weight, 2WD - lb (kg) | 29,813 (13523) |
| Wheelbase, 2WD - in (mm) | 138 (3505) |
| Transport Height - ft-in (m) | 14' 10" (4.52) |