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| info | |
| The Cummins KT-1150-C400 was also available as a special-order engine option on the Big Bud 400/30. |
| Production | |
| Manufacturer: | Big Bud |
| Factory: | Havre, Montana, USA |
| Variants | |
| 400/20: | gear shift |
| 400/30: | power shift |
| Capacity | |
| Fuel: | 550 gal [2081.8 L] |
| Dimensions & Tires | |
| Wheelbase: | 150 inches [381 cm] |
| Weight: | 38000 lbs [17236 kg] |
| Front tire: | 24.5-32 |
| Rear tire: | 24.5-32 |
| 400/30 Serial Numbers | |
| - Serial numbers unknown - |
| Big Bud 400/30 Power | |
| Engine: | 400 hp [298.3 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 load sensing |
| Valves: | 4 |
| Pump flow: | 36 gpm [136.3 lpm] |
| Steering flow: | 36 gpm [136.3 lpm] |
| Electrical | |
| Ground: | negative |
| Charging system: | alternator |
| Charging amps: | 75 |
| Battery | |
| Volts: | 12 |
| info | |
| Bore/Stroke: | 4.84x5.00 inches [123 x 127 mm] |
| Power: | 400 hp [298.3 kW] |
| Compression: | 19:1 |
| Rated RPM: | 2100 |
| Starter: | electric |
| Starter volts: | 24 |
| Engine Detail | |
| Detroit Diesel 8V-92T, turbocharged diesel, 8-cylinder, liquid-cooled, 736 ci [12.1 L] |
| info | |
| Speeds: | With 24.5x32 tires. |
| Transmission | |
| Transmission: | Twin Disc TD-61-1154 |
| Type: | power shift |
| Gears: | 6 forward and 1 reverse |
| Dimensions | |
| Weight (shipping): | 38000 lbs [17236 kg] |
| Weight (max capacity): | 44000 lbs [19958 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 400/30 Tires | |
| Ag front: | 30.5-32 |
| Ag rear: | 30.5-32 |