Allis Chalmers 7020

The Allis Chalmers 7020 is a tractor produced by Allis Chalmers. It is equipped with a 301 ci 4.9 L engine. The listed engine power is Diesel (listed): 146 hp / 108.9 kW. Transmission: Power Shift. Operating weight: 10820 to 11700 pounds.

Engine Power

Diesel (listed): 146 hp / 108.9 kW

Fuel & Capacities

51 gal 193.0 L

Transmission

Power Shift

Operating Weight

10820 to 11700 pounds

Overview

	1978 - 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	$39,378

Allis Chalmers 7020 Engine
Allis Chalmers 4.9L 6-cyl diesel
Fuel tank	51 gal 193.0 L
	13 gal (optional auxiliary tank) 49.2 L
Engine details ...

Allis Chalmers 7020 Power
Engine	146 hp 108.9 kW
Drawbar (claimed)	106 hp 79.0 kW
PTO (claimed)	123 hp 91.7 kW
Drawbar (tested)	102.09 hp 76.1 kW
PTO (tested)	123.85 hp 92.4 kW
Performance test details ...

Mechanical
Two-wheel drive
Final drives	inboard planetary
Steering	hydrostatic power
Differential power wet disc brakes
Acousta cab standard with heat. Air-conditioning optional. Radio and eight-track player optional.

Hydraulics
Type	closed center
Valves	2 or 3
Pump flow	22 gpm 83.3 lpm
Total flow	45 gpm 170.3 lpm
Steering flow	9.5 gpm 36.0 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	540/1000

Dimensions & Tires
Wheelbase	106 inches 269 cm
Weight	10820 to 11700 pounds
Front tire	11.00x16
Rear tire	18.4x38
Full dimensions and tires ...

References

Loaders - picking up where the others leave off published in 1979, 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
7020 - The bright new addition to the Rising Power Family. published in 1977, by Allis Chalmers

Engine

Engine Detail — 301 ci / 4.9 L Diesel

Manufacturer	Allis Chalmers 649I
Configuration	intercooled turbocharged diesel, 6-cylinder, liquid-cooled Inline
Displacement	301 ci 4.9 L
Bore/Stroke	3.875x4.25 inches 98 x 108 mm
Power	146 hp 108.9 kW
Air cleaner	dry with pre-cleaner
Compression	16.25:1
Rated RPM	2300
Firing order	1-5-3-6-2-4
Starter volts	12
Oil capacity	20 qts 18.9 L
Coolant capacity	26 qts 24.6 L

Transmission

Transmission options
16-speed partial power shift
20-speed partial power shift
12-speed partial power shift

Transmission — Power Director

Transmission	Power Director
Type	partial power shift
Gears	16 forward and 4 reverse
Oil capacity	29.6 qts 28.0 L
Four gears in two ranges (slow/fast) with two-range power shift. Power shift controlled by foot buttons.
With 18.4x38 rear tires.

Transmission — Power Director

Transmission	Power Director
Type	partial power shift
Gears	20 forward and 4 reverse
Oil capacity	29.6 qts 28.0 L
Five gears in two ranges (slow/fast) with two-range power shift. Power shift controlled by foot buttons.
With 18.4x38 rear tires.

Transmission — Power Shift

Transmission	Power Shift
Type	partial power shift
Gears	12 forward and 2 reverse
Oil capacity	29.6 qts 28.0 L
Six gears in two ranges. Power shift between gears in range.
With 15.5x38 rear tires.

Dimensions

Allis Chalmers 7020 Tires
Ag front	11.00x16
Ag rear	18.4x38
Ag front	10.00x16
	14Lx16
Ag rear	24.5x32
	30.5x32
	20.8x34
	15.5x38
	16.9x38
	18.4x38
	20.8x38

Dimensions
Wheelbase	106 inches 269 cm
Length	163 inches 414 cm
Width	92.6 inches 235 cm
	118.7 inches*Optional long axle 301 cm
Clearance (front axle)	21 inches 53 cm
Clearance (rear axle)	28 inches 71 cm
Rear axle	3.625 inch diameter 92 mm
Rear axle	3.75 inch diameter 95 mm

Allis Chalmers 7020 Weight
Shipping	10,820 lbs 4907 kg
Operating	11,700 lbs 5307 kg
Ballasted	15,610 lbs 7080 kg

Allis Chalmers 7020 Height
Steering wheel	87 inches 220 cm
Hood	68 inches 172 cm
Exhaust	116 inches 294 cm

Tests

Tractor Tests
NTTL 1259: diesel Power shift 2WD
NTTL 1260: diesel Power Director 2WD

Nebraska Tractor Test 1259
Diesel Power shift 2WD October 10 - 21, 1977 Link: Nebraska Tractor Test 1259 file
PTO performance
Power at rated engine speed	123.79 hp 92.3 kW
Fuel use	7.8 gal/hour 29.5 l/hour
Power at rated PTO speed	123.50 hp 92.1 kW
Fuel use	7.7 gal/hour 29.1 l/hour
Drawbar performance
Max power	101.89 hp 76.0 kW
Fuel use	7.8 gal/hour 29.5 l/hour
Gear 1F used for power test.
Max pull	12,001 lbs 5443 kg
Gear 2S used for pull test.

Nebraska Tractor Test 1260
Diesel Power Director 2WD October 10 - 21, 1977 Link: Nebraska Tractor Test 1260 file
PTO performance
Power at rated engine speed	123.85 hp 92.4 kW
Fuel use	7.8 gal/hour 29.5 l/hour
Power at rated PTO speed	125.51 hp 93.6 kW
Fuel use	7.8 gal/hour 29.5 l/hour
Drawbar performance
Max power	102.09 hp 76.1 kW
Fuel use	7.8 gal/hour 29.5 l/hour
Gear 4SL used for power test.
Max pull	11,964 lbs 5426 kg
Gear 2SL used for pull test.

Photos

Allis Chalmers 7020 tractor photo

Recommended Implements & Sizing Guide

Engineering recommendations for Allis Chalmers 7020 based on its 146 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	10 to 12 ft Flex-Wing3.0 - 3.6 m 折叠双翼	Heavy Duty	Wide swath pasture and crop residue shredding.
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	5x6 Round Baler or 3x3 Mid Square1.5x1.8 m 大圆捆或中型方捆机	Heavy Duty	High density baling; requires minimum 85 PTO HP.

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 7020.

Estimated Continuous Field Runtime: 6.7 hrs

Approximately 6.7 hours of continuous field operation at ~75% rated power on a full tank (51 gal / 193.1 L).

Estimated 75% Load Fuel Burn~7.6 gal/hr (28.7 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