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| info | |
| 1980 - 1981 3 Series, Four-wheel Drive (4WD) tractor |
| Production | |
| Manufacturer: | Big Bud |
| Factory: | Havre, Montana, USA |
| Capacity | |
| Fuel: | 700 gal [2649.5 L] |
| Dimensions & Tires | |
| Wheelbase: | 160 inches [406 cm] |
| Weight: | 60000 lbs [27216 kg] |
| Front tire: | 35.5-32 |
| Rear tire: | 35.5-32 |
| 650/50 Serial Numbers | |
| - Serial numbers unknown - |
| Big Bud 650/50 Power | |
| Engine: | 650 hp [484.7 kW] |
| Mechanical | |
| Chassis: | 4x4 4WD |
| Steering: | hydrostatic power |
| Cab: | Cruiser Cab standard with air-conditioning. |
| Hydraulics | |
| Type: | closed center |
| Valves: | 4 |
| Pump flow: | 36 gpm [136.3 lpm] |
| Electrical | |
| Ground: | negative |
| Charging system: | alternator |
| Charging amps: | 72 |
| Battery | |
| Volts: | 12 |
| info | |
| Power: | 650 hp [484.7 kW] |
| Starter: | electric |
| Starter volts: | 24 |
| Coolant capacity: | 128 qts [121.1 L] |
| Engine Detail | |
| Detroit Diesel, turbocharged diesel, 12-cylinder, liquid-cooled, 1104 ci [18.1 L] |
| Transmission | |
| Transmission: | Twin Disc |
| Type: | power shift |
| Gears: | 9 forward and 2 reverse |
| Dimensions | |
| Weight (shipping): | 60000 lbs [27216 kg] |
| Wheelbase: | 160 inches [406 cm] |
| Big Bud 650/50 Tires | |
| Ag front: | 35.5-32 |
| Ag rear: | 35.5-32 |