Deutz-Allis 7120 Tractor

Manufacturer Deutz-Allis
Price -
Model 7120
Equipment Type Row-Crop Tractors
Factory

NEBRASKA TRACTOR TEST 1576 2

Description Diesel 24-speed 4WD September 9 - 17, 1985 Link: Nebraska Tractor Test 1576 file PTO performance Drawbar performance Gear 3ML used for power test Gear 1MH used for pull test
Power at rated engine speed 122.06hp / 91.0kW
Fuel use 7.3gal/hour / 27.6l/hour
Power at rated PTO speed 123.15hp / 91.8kW
Max power 101.36hp / 75.6kW
Max pull 10,734lbs / 4868kg

DEUTZ-ALLIS 7120 POWER

PTO (claimed) 122hp / 91.0kW
Drawbar (tested) 101.36hp / 75.6kW
PTO (tested) 122.06hp / 91.0kW

ENGINE DETAIL

The Deutz-Allis 7120 tractor is equipped with a turbocharged 6-cylinder diesel engine, offering a substantial displacement of 6.1L, which enhances torque and efficiency while operating under load. Its fuel consumption of 7.4 gallons per hour at rated RPM (2300) indicates a high fuel demand, necessitating careful fuel management during extended use, particularly in heavy-duty applications. With a robust oil capacity of 17 quarts, the engine benefits from sufficient lubrication, contributing to prolonged engine life and performance reliability, though regular maintenance of air filters is essential to maintain air intake efficiency and overall engine health.

Description Deutz BF6L913 turbocharged diesel 6-cylinder air-cooled
Displacement 374ci / 6.1L
Bore/Stroke 4.02x4.92inches / 102x 125mm
Fuel use 7.4gal/hour / 28.0l/hour
Air cleaner dual paper elements with pre-cleaner
Compression 15.5:1
Rated RPM 2300
Starter volts 12
Starter power 5 hp /3.7 kW
Oil capacity 17qts / 16.1L

DEUTZ-ALLIS 7120 ENGINE

The Deutz-Allis 7120 is powered by a robust 6.1L 6-cylinder diesel engine, offering high torque and efficiency for demanding agricultural applications. Its design ensures reliable performance under various load conditions, but potential challenges include higher emissions compliance requirements and maintenance costs associated with diesel systems. Ideal for medium to large farming operations, this tractor excels in both fieldwork and transport tasks, making it a versatile addition to agricultural fleets.

Description Deutz 6.1L 6-cyl diesel

TRANSMISSIONS OVERVIEW

The Deutz-Allis 7120 tractor features a 24-speed synchronized transmission with a partial power shift, enhancing operational flexibility and efficiency during field work. This advanced transmission system provides smooth gear changes, ideal for varied terrains and farming applications, enabling optimal engine performance. However, users should be aware of potential maintenance complexity and higher repair costs associated with advanced transmission systems in the long run.

Description 24-speed synchronized with partial power shift 32-speed

TRANSMISSION 1

The Deutz-Allis 7120 features a POWERMATIC transmission with a synchronized design that enhances gear shifting smoothness across its 24 forward and 8 reverse gears, beneficial for applications requiring frequent directional changes. The hydraulic dry disc clutch improves durability and reduces maintenance intervals, while the 56 qt oil capacity provides adequate lubrication for extended operation. However, the complexity of the partial power shift may pose challenges during repairs, necessitating a skilled technician familiar with advanced transmission systems.

Transmission POWERMATIC
Type synchronized with partial power shift
Gears 24 forward and 8 reverse
Clutch hydraulic dry disc
Oil capacity 56qts / 53.0L
Description Four speeds (1-4) in three ranges (L/M/H) with high low power shift

SPEEDS

Description 20.8x38 rear tires

TRANSMISSION 2

The Deutz-Allis 7120 tractor has a comprehensive gear distribution with 32 forward and 8 reverse speeds, offering exceptional versatility for various field applications, though the complexity may challenge inexperienced operators. Its oil capacity of 56 quarts (53.0L) ensures sufficient lubrication for extended operation, which is advantageous for maintaining engine longevity but requires regular monitoring to prevent oil degradation. Be mindful of the maintenance requirements, as higher gear counts can lead to increased wear on transmission components if not properly managed.

Gears 32 forward and 8 reverse
Oil capacity 56qts / 53.0L

MECHANICAL

The Deutz-Allis 7120 tractor features a versatile 4x2 or 4x4 drivetrain, providing excellent traction in varied conditions, while the push-button rear differential lock enhances performance on challenging terrain. Its hydrostatic power steering offers responsive maneuverability, and the advanced 24-speed transmission, with optional 32-speed and partial power shift, contributes to operational efficiency across diverse tasks. The standard MasterCab with heating and air-conditioning ensures operator comfort, making it suitable for extended fieldwork in varying climates.

Chassis 4x2 2WD/4x4 MFWD 4WD
Differential lock push-button rear/OPTICTRAC automatic front
Steering hydrostatic power
Brakes differential hydraulic dry disc
Cab Detuz-Allis MasterCab standard with heat and air-conditioning. Agrotronic instrumentation standard, optional Agrotronic II
Transmissions 24-speed synchronized with partial power shift 32-speed

CAPACITY

Fuel 40gal / 151.4L 66gal / 249.8L
Hydraulic system 10gal / 37.9L

HYDRAULICS

Type open center
Capacity 10gal / 37.9L
Pressure 2538psi / 175.0bar
Valves 1 to 3
Pump flow 14.8gpm / 56.0lpm
Total flow 24gpm / 90.8lpm
Steering flow 9.2gpm / 34.8lpm

TRACTOR HITCH

Rear Type III
Rear lift 14,330lbs / 6500kg
Front Hitch II
Front lift 6,393lbs / 2899kg

POWER TAKE-OFF (PTO)

Rear PTO independent
Rear RPM 540/1000
Front PTO independent
Front RPM 1000

DEUTZ-ALLIS 7120 TIRES

The Deutz-Allis 7120 tractor features a 4WD configuration, enhancing traction and stability on uneven terrain, making it ideal for diverse agricultural applications. The front tires (16.9x28) provide responsive handling, while the larger rear tires (20.8x38) offer improved load-carrying capacity and better soil compaction management. However, the combination may result in increased weight distribution challenges, necessitating careful consideration of soil conditions and implement compatibility to maximize efficiency.

Ag front 16.9x28 (4WD)
Ag rear 20.8x38

DIMENSIONS

Wheelbase 105.8inches / 268cm (2WD) 106.4inches / 270cm (4WD)
Length 177.1inches / 449cm (2WD) 179.5inches / 455cm (4WD)
Width 95.5inches / 242cm
Clearance (front axle) 24.4inches / 61cm (2WD) 22.4inches / 56cm (4WD)

DEUTZ-ALLIS 7120 WEIGHT

Operating 11,243lbs / 5099kg (2WD) 12,081lbs / 5479kg (4WD)
Ballasted 17,595lbs / 7981kg
Max Drawbar 2,976lbs / 1349kg

DEUTZ-ALLIS 7120 HEIGHT

Cab 109.6inches / 278cm (2WD)
Exhaust 108.26inches / 274cm (2WD) 116.7inches / 296cm (4WD)

DIMENSIONS & TIRES

The Deutz-Allis 7120 tractor offers a wheelbase of 105.8 inches for 2WD and 106.4 inches for 4WD, providing stability and traction, particularly beneficial in rough terrain or when handling heavy loads. Weighing between 11,243 to 12,081 pounds, it strikes a balance between stability and maneuverability, although the higher weight may limit mobility in certain applications. The combination of 11.00-16 front tires and 18.4-38 rear tires ensures adequate flotation and traction for various field tasks, but tire choice may need to be adjusted based on specific soil conditions and crop types.

Wheelbase 105.8inches / 268cm (2WD) 106.4inches / 270cm (4WD)
Weight 11243 to 12081 pounds
Front tire 11.00-16
Rear tire 18.4-38

ELECTRICAL

Charging system alternator
Charging amps 90
Charging volts 14
Batteries 2
Battery volts 6


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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