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| info | |
| 1979 - 1982 3 Series, Four-wheel Drive (4WD) tractor |
| Production | |
| Manufacturer: | Big Bud |
| Factory: | Havre, Montana, USA |
| Variants | |
| 525/20: | gear shift |
| 525/50: | power shift |
| Capacity | |
| Fuel: | 550 gal [2081.8 L] |
| Hydraulic system: | 36 gal [136.3 L] |
| Dimensions & Tires | |
| Wheelbase: | 150 inches [381 cm] |
| Weight: | 45000 to 52000 pounds |
| Front tire: | 30.5-32 |
| Rear tire: | 30.5-32 |
| 525/50 Serial Numbers | |
| - Serial numbers unknown - |
| Big Bud 525/50 Power | |
| Engine: | 525 hp [391.5 kW] |
| Drawbar (tested): | 406.48 hp [303.1 kW] |
| Mechanical | |
| Chassis: | 4x4 articulated 4WD |
| Final drives: | planetary |
| Steering: | articulated power |
| Brakes: | pneumatic drum |
| Cab: | Cruiser Cab standard with air-conditioning. |
| Hydraulics | |
| Type: | closed center |
| Capacity: | 36 gal [136.3 L] |
| Steering flow: | 36 gpm [136.3 lpm] |
| Electrical | |
| Ground: | negative |
| Charging system: | alternator |
| Charging amps: | 75 |
| Battery | |
| Volts: | 12 |
| info | |
| Bore/Stroke: | 6.25x6.25 inches [159 x 159 mm] |
| Power: | 525 hp [391.5 kW] |
| Air cleaner: | dual dry element |
| Rated RPM: | 2100 |
| Starter: | electric |
| Starter volts: | 24 |
| Engine Detail | |
| Cummins KTA-1150-C, turbocharged aftercooled diesel, 6-cylinder, liquid-cooled inline, 1150 ci [18.8 L] |
| Transmission | |
| Transmission: | Twin Disc TD-92-2610 |
| Type: | power shift |
| Gears: | 9 forward and 2 reverse |
| Dimensions | |
| Weight (shipping): | 45000 lbs [20412 kg] |
| Weight (operating): | 52000 lbs [23587 kg] |
| Weight (max capacity): | 60000 lbs [27216 kg] |
| Wheelbase: | 150 inches [381 cm] |
| Length: | 267.6 inches [679 cm] |
| Width: | 120 inches [304 cm] |
| Height (cab): | 144.5 inches [367 cm] |
| Height (exhaust): | 156 inches [396 cm] |
| Ground clearance: | 14.5 inches [36 cm] |
| Big Bud 525/50 Tires | |
| Ag front: | 30.5-32 |
| Ag rear: | 30.5-32 |