Allis Chalmers 7080

The Allis Chalmers 7080 is a tractor produced by Allis Chalmers. It is equipped with a 426 ci 7.0 L engine. The listed engine power is Diesel (listed): 210 hp / 156.6 kW. Transmission: Allis-Chalmers Power Director. Operating weight: 13638 lbs 6186 kg.

Engine Power

Diesel (listed): 210 hp / 156.6 kW

Fuel & Capacities

64 gal 242.2 L

Transmission

Allis-Chalmers Power Director

Operating Weight

13638 lbs 6186 kg

Overview

	1975 - 1981 7000 SeriesRow-Crop tractor 7000 Series Row-Crop tractor

Production
Manufacturer	Allis Chalmers
Row-Crop tractor
Built in West Allis, Wisconsin, USA
Original price	$54,561

Allis Chalmers 7080 Engine
Allis Chalmers 7.0L 6-cyl diesel
Fuel tank	64 gal 242.2 L
Engine details ...

Allis Chalmers 7080 Transmission
20-speed partial power shift
Transmission details ...

Allis Chalmers 7080 Power
Engine	210 hp 156.6 kW
Drawbar (claimed)	154 hp 114.8 kW
PTO (claimed)	181.5 hp 135.3 kW
Drawbar (tested)	148.89 hp 111.0 kW
PTO (tested)	181.51 hp 135.4 kW
Performance test details ...

Mechanical
Two-wheel drive
Final drives	inboard planetary
Power steering
Differential hydraulic wet disc brakes
Acousta cab standard with heat, air-conditioning optional. Radio and 8-track player optional. Four-post ROPS canopy available.

Hydraulics
Type	closed center
Valves	2 or 3
Pump flow	23 gpm 87.1 lpm
Total flow	47 gpm 177.9 lpm
Steering flow	10 gpm 37.9 lpm

Tractor hitch
Rear Type	3/2
Rear lift (at 24"/610mm)	6,680 lbs 3030 kg

Power Take-off (PTO)
Rear PTO	independent
Rear PTO Type	1000

Dimensions & Tires
Wheelbase	106 inches 269 cm
Weight	13638 lbs 6186 kg
Front tire	14Lx16
Rear tire	20.8x38
Full dimensions and tires ...

References

Loaders - picking up where the others leave off published in 1979, by Allis Chalmers
7040/7060/7080 - The Rising Power in Farming published in 1976, by Allis Chalmers
7080/7060/7045/7020 - All Four, Big Power published in 1978, by Allis Chalmers
7080/7060/7045/7020 - The Power Squadron published in 1980, by Allis Chalmers
7080/7060/7045/7020/7010 - The Power Squadron published in 1981, by Allis Chalmers

Engine

Engine Detail — 426 ci / 7.0 L Diesel

Manufacturer	Allis Chalmers 670HI
Configuration	intercooled turbocharged diesel, 6-cylinder, liquid-cooled
Displacement	426 ci 7.0 L
Bore/Stroke	4.25x5.00 inches 108 x 127 mm
Power	210 hp 156.6 kW
Air cleaner	dry with pre-cleaner
Compression	16:1
Rated RPM	2550
Starter volts	12
Oil capacity	25 qts 23.7 L
Coolant capacity	36 qts 34.1 L

Transmission

Transmission — Allis-Chalmers Power Director

Transmission	Allis-Chalmers Power Director
Type	partial power shift
Gears	20 forward and 4 reverse
Oil capacity	29.6 qts 28.0 L
Five gears, plus reverse, with two ranges (fast/slow) and two-range power shift (lo/hi). Power shift controlled by foot buttons.
With 20.8x38 rear tires.

Dimensions

Allis Chalmers 7080 Tires
Ag front	14Lx16
Ag rear	20.8x38
Ag front	11.00x16
	18.4x16
Ag rear	23.1x30
	24.5x32
	30.5x32
	15.5x38
	16.9x38
	20.8x38
	18.4x42

Dimensions
Wheelbase	106 inches 269 cm
Length	163 inches 414 cm
Width	95.5 inches 242 cm
	119.5 inches (optional long axle) 303 cm
Weight	13638 lbs 6186 kg
Ground clearance	22 inches (front axle) 55 cm
	29 inches (rear axle) 73 cm
Rear axle	4.00 inch diameter 101 mm

Allis Chalmers 7080 Height
Steering wheel	88 inches 223 cm
Hood	69 inches 175 cm
Exhaust	117 inches 297 cm

Tests

Nebraska Tractor Test 1168
Diesel Power Director 2WD November 1 - 13, 1974 Link: Nebraska Tractor Test 1168 file
PTO performance
Power at rated engine speed	181.51 hp 135.4 kW
Fuel use	11.6 gal/hour 43.9 l/hour
Drawbar performance
Max power	148.89 hp 111.0 kW
Fuel use	11.3 gal/hour 42.8 l/hour
Gear 4-Slow-Lo used for power test.
Max pull	18,478 lbs 8381 kg
Gear 2-Slow-Lo used for pull test.

Photos

Open station (cut-off cab) Allis-Chalmers 7080, left side.

Allis-Chalmers 7080 with cab.

Allis-Chalmers cab interior.

Open station Allis-Chalmers 7080, right side.

Recommended Implements & Sizing Guide

Engineering recommendations for Allis Chalmers 7080 based on its 210 HP power envelope and ASAE agricultural standards.

Implement & Operation	Recommended Size	Workload Rating	Engineering Notes
Moldboard PlowPrimary Tillage	5 to 7 Bottom (18")5 - 7 铧 (45 cm)	Commercial / Field Scale	Large acreage tillage; requires front ballast weights.
Rotary Cutter / MowerMowing & Clearing	15 to 20 ft Batwing4.6 - 6.1 m 宽幅折叠翼	Commercial / Field Scale	Large commercial field and roadside mowing operations.
Rotary TillerSeedbed Prep	90 to 120 in Heavy Duty230 - 300 cm 重型旋耕机	Commercial / Field Scale	Deep intensive seedbed preparation for commercial row crops.
Disc HarrowSecondary Tillage	15 to 22 ft Folding Disc4.5 - 6.7 m 折叠式圆盘耙	Commercial / Field Scale	Wide commercial field leveling; requires hydraulic remotes.
Hay BalerHay & Forage	Large Square Baler (3x4 or 4x4)大方捆商用打捆机 (1.2x1.2 m)	Commercial / Field Scale	High-capacity commercial forage harvesting (1000 RPM PTO).

Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for Allis Chalmers 7080.

Estimated Continuous Field Runtime: 5.9 hrs

Approximately 5.9 hours of continuous field operation at ~75% rated power on a full tank (64 gal / 242.3 L).

Estimated 75% Load Fuel Burn~10.9 gal/hr (41.3 L/hr)

Engine Crankcase Oil

SAE 15W-40 (Heavy Duty Diesel)

Standard Spec: API CK-4 / CJ-4 Heavy Duty

Service Interval: 150 – 250 Hours

Transmission & Hydraulic System

UTTO (Universal Tractor Transmission Oil)

Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)

Service Interval: 600 – 1000 Hours

Engine Cooling System

50/50 Ethylene Glycol Pre-mix

Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze

Service Interval: 2 Years / 1500 Hours