Overview
The Satoh Bison S670 is a versatile compact utility farm tractor produced between 1980 and 1984, powered by a 30 hp Mitsubishi diesel engine. Available in both two-wheel and four-wheel drive configurations, it features a robust 2,050-pound rear lift capacity and a live rear PTO with dual speeds of 540 and 1000 RPM.
Ideal Applications
Material Handling and Lifting:
With a rear lift capacity of 2050 lbs at the ends and Category I hitch featuring position and draft control, this tractor is well-suited for managing heavy implements and precise ground-engaging tasks.
Small-Scale Farming and Tillage:
The 8-speed gear transmission and 30 hp liquid-cooled diesel engine provide the necessary mechanical control and power for a variety of field operations on smaller agricultural plots.
Implementation of Specialized Attachments:
Equipped with a live rear PTO offering both 540 and 1000 RPM options, the Bison S670 can efficiently power a wide range of standard and high-speed rotary attachments.
Production
| Description | Compact Utility tractor |
|---|---|
| Manufacturer | Satoh |
Engine
| Engine type | Mitsubishi 1.3L 4-cyl diesel |
|---|---|
| Air cleaner | dry |
| Compression | 23:1 |
| Coolant capacity | 6.3 qts (6.0 L) |
| Description | Mitsubishi / diesel / 4-cylinder / liquid-cooled |
| Displacement | 79.6 ci (1.3 L) |
| Oil capacity | 6.5 qts (6.2 L) |
| Power | 30 hp (22.4 kW) |
| Rated RPM | 2700 |
| Starter volts | 12 |
| PTO (claimed) | 25 hp (18.6 kW) |
Transmission
| 2WD Oil capacity | 21.1 qts (20.0 L) |
|---|---|
| 4WD Oil capacity | 22.2 qts (21.0 L) |
| Clutch | dry disc |
| Gears | 8 forward and 2 reverse |
| Transmission type | 8-speed gear |
| Type | gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Description | Drum brakes |
| Drive type | Two- or four-wheel drive |
| Steering | manual |
Capacity
| Fuel | 10.6 gal (40.1 L) |
|---|---|
| Hydraulic system | 1.25 gal (4.7 L) |
| Steering | 0.9 qts (0.9 L) |
Hydraulics
| Capacity | 1.25 gal (4.7 L) |
|---|---|
| Pump flow | 5.15 gpm (19.5 lpm) |
| Steering cap. | 0.9 qts (0.9 L) |
| Steering flow | 3.43 gpm (13.0 lpm) |
Hitch
| Control | position and draft control |
|---|---|
| Rear lift (at ends) | 2050 lbs (929 kg) |
| Rear Type | I |
PTO
| Rear PTO | live |
|---|---|
| Rear PTO Type | 540/1000 (1.375) |
Electrical
| Battery AH | 70 |
|---|---|
| Battery volts | 12 |
| Ground | negative |
Dimensions & Tires
| 2WD Front tread | 40.9 to 52.8 inches (103 to 134 cm) |
|---|---|
| 2WD Length | 106.5 inches (270 cm) |
| 2WD Weight | 2313 lbs (1049 kg) |
| 2WD Wheelbase | 60.6 inches (153 cm) |
| 4WD Front tread | 47.2 inches (119 cm) |
| 4WD Length | 116.9 inches (296 cm) |
| 4WD Weight | 2675 lbs (1213 kg) |
| 4WD Wheelbase | 75.4 inches (191 cm) |
| Ground clearance | 11.2 inches (28 cm) |
| Height | 77.6 inches (197 cm) |
| Rear tread | 45.5 to 58.9 inches (115 to 149 cm) |
| Width | 59.4 inches (150 cm) |
| 2WD Rear tire | 7-16 |
| 2WD Wheelbase | 60.6 inches (153 cm) |
| 4WD Wheelbase | 75.4 inches (191 cm) |
| Front tire | 5.00-15 |
| Weight | 2313 to 2675 pounds |
| 2WD Lawn/turf front | 20x8.00-10 |
| 2WD Standard tires (ag) | Front: 5.00-15. Rear: 7-16 |
| 4WD Lawn/turf front | 6-14 |
| 4WD Standard tires (ag) | Front: 7-16. Rear: 12.4-24 |
| Lawn/turf rear | 13.6-16 |
References
| Description | Bison Diesel published in 1980, by Satoh |
|---|