Big Bud 400/30 Tractor

Manufacturer Big Bud
Price 117(USD)
Model 400/30
Equipment Type Four-wheel Drive 4WD Tractors
Factory Havre, Montana, USA

BIG BUD 400/30 POWER

Engine 400 hp/298.3 kW

ENGINE DETAIL

The Big Bud 400/30, powered by a Detroit Diesel 8V-92T, delivers a robust 400 hp at 2100 RPM, making it suitable for heavy-duty agricultural and construction tasks. Its substantial displacement of 736 ci (12.1 L) and turbocharged system enhance torque and efficiency, but the high compression ratio of 19:1 can lead to increased stress and potential maintenance challenges. The 24-volt electric starter ensures reliable ignition, which is critical in cold operating conditions, though it may require compatible equipment for optimal performance.

Description Detroit Diesel 8V-92T/turbocharged diesel/8-cylinder/liquid-cooled
Displacement 736 ci/12.1 L
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

BIG BUD 400/30 ENGINE

The Big Bud 400/30 tractor is powered by a robust Detroit Diesel 12.1L 8-cylinder engine, which provides substantial torque for heavy-duty agricultural tasks. Its 550-gallon fuel tank allows for extended operational periods without frequent refueling, enhancing productivity in large-scale farming scenarios. However, this size may pose challenges in storage and transport logistics, especially in specialized agricultural environments.

Description Detroit Diesel 12.1L 8-cyl diesel
Fuel tank 550 gal/2081.8 L

TRANSMISSION

The Big Bud 400/30 tractor's Twin Disc TD-61-1154 power shift transmission enables seamless gear changes, enhancing productivity during heavy-duty tasks. With 6 forward and 1 reverse gear, it provides a good balance of speed and torque for diverse agricultural applications. However, the reliance on a single reverse gear may limit maneuverability in tight spaces, making it less ideal for operations requiring frequent directional changes.

Transmission Twin Disc TD-61-1154
Type power shift
Gears 6 forward and 1 reverse

SPEEDS

Description With 24.5x32 tires./

MECHANICAL

The Big Bud 400/30 features a robust 4x4 articulated chassis, enhancing maneuverability in diverse terrain, making it ideal for large-scale farming and heavy-duty tasks. Its 6-speed power shift transmission allows for smooth gear transitions, crucial for maintaining optimal power delivery, while the pneumatic drum brakes provide reliable stopping capability, particularly under heavy loads. However, challenges may arise in the maintenance of the planetary final drives and pneumatic braking system, which require specialized knowledge for service and repair.

Chassis 4x4 articulated 4WD
Final drives planetary
Steering articulated power
Brakes pneumatic drum
Cab Cruiser Cab standard with air-conditioning.
Transmission 6-speed power shift

HYDRAULICS

Type closed center load sensing
Valves 4
Pump flow 36 gpm/136.3 lpm
Steering flow 35 gpm/132.5 lpm

BIG BUD 400/30 TIRES

The Big Bud 400/30 features robust 30.5-32 tires, enhancing traction and stability for heavy-duty agricultural tasks. Its large tires support significant load capacities, making it ideal for large-scale farming operations but may limit maneuverability in tighter fields. Consider using this tractor in open terrains or large crop areas where its size and power can be fully utilized.

Ag front 30.5-32
Ag rear 30.5-32

DIMENSIONS

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
Shipping weight 40000 lbs/18144 kg
Max weight 50000 lbs/22680 kg
Ground clearance 14.5 inches/36 cm

DIMENSIONS & TIRES

The Big Bud 400/30 tractor features a substantial wheelbase of 150 inches, which enhances stability and traction, particularly for heavy-duty applications such as large-scale farming. Weighing 40,000 lbs (18144 kg) and equipped with 24.5-32 tires, it offers excellent ground contact for improved load distribution and reduced soil compaction. However, its weight may pose challenges in terms of transportability and maneuverability in confined spaces, making it best suited for open-field operations.

Wheelbase 150 inches/381 cm
Weight 40000 lbs/18144 kg
Front tire 24.5-32
Rear tire 24.5-32

ELECTRICAL

Ground negative
Charging system alternator
Charging amps 75
Battery volts 12


Last Updated 2025-01-01
Stephen is a passionate tractor hobbyist with a deep-seated love for all things mechanized and agricultural. Growing up in a rural setting, he developed a fascination with these mighty machines that have played a crucial role in shaping the farming industry.

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