The Allis Chalmers 7020 tractor is powered by a Allis Chalmers 4.9L 6-cyl diesel engine that provides 146hp / 108.9kW of horsepower and torque. It has a 4x2 2WD drive configuration and a 16-speed partial power shift 20-speed partial power shift 12-speed partial power shift transmission.

Engine

The engine is a 6-cylinder liquid-cooled inline Allis Chalmers 649I intercooled turbocharged diesel with a displacement of 301ci / 4.9L. It has a dry air cleaner with pre-cleaner and a compression ratio of 16.25:1. The engine is rated at 146hp / 108.9kW at 2300 rpm. The starter volts are 12 and the oil capacity is 20qts / 18.9L. The coolant capacity is 26qts / 24.6L.


Searching for Allis Chalmers 7020 Parts? Discover Suppliers and Request Samples Now!

Find Suppliers & Request Samples

Transmission

The transmission is available in three options: 16-speed partial power shift, 20-speed partial power shift, and 12-speed partial power shift. The engine power take-off (PTO) is rated at 123hp / 91.7kW. The drawbar power is rated at 106hp / 79.0kW. The tested drawbar power is 102.09hp / 76.1kW, and the tested PTO power is 123.85hp / 92.4kW. The transmission is designed to provide smooth shifting and efficient power transfer.

Brakes

The brakes are differential power wet disc. The engine provides a power output of 146hp / 108.9kW, which is sufficient to operate the brakes effectively. The Allis Chalmers 649I intercooled turbocharged diesel engine has a displacement of 301ci / 4.9L and a compression ratio of 16.25:1. The bore/stroke ratio is 3.875x4.25inches / 98x 108mm. The engine is rated at 2300 rpm and has a starter voltage of 12. The oil capacity is 20qts / 18.9L, and the coolant capacity is 26qts / 24.6L.



Steering

The steering is hydrostatic power. The Allis Chalmers 7020 tractor is equipped with a 4.9L 6-cylinder diesel engine that provides a power output of 146hp / 108.9kW. The fuel tank has a capacity of 51gal / 193.0L, and an optional auxiliary tank of 13gal / 49.2L is available. The hydrostatic power steering provides smooth and responsive steering control.


Searching for Allis Chalmers 7020 Parts? Discover Suppliers and Request Samples Now!

Find Suppliers & Request Samples

Common Problems

Users have reported issues with the Allis Chalmers 7020 tractor's final drives, which are inboard planetary. The chassis is 4x2 2WD, which may not be suitable for all types of terrain. Some users have reported problems with the cab's air-conditioning system. The 16-speed partial power shift transmission has been reported to have occasional shifting problems. The differential power wet disc brakes have been reported to wear out quickly with heavy use.

What Users Like

Users appreciate the Allis Chalmers 7020 tractor's large fuel tank capacity of 51gal / 193.0L, which allows for extended periods of use without refueling. The hydrostatic power steering provides smooth and responsive steering control, which is appreciated by users. The tractor's optional auxiliary fuel tank of 13gal / 49.2L is also appreciated by users. The tractor's ag rear tire options of 24.5x32 / 30.5x32 / 20.8x34 / 15.5x38 / 16.9x38 / 18.4x38 / 20.8x38 provide versatility for different types of terrain. The Acousta cab with heat is standard and provides a comfortable working environment for the operator.

Allis Chalmers 7020 Technical Specifications

Power

Engine146hp / 108.9kW
Drawbar (claimed)106hp / 79.0kW
Pto (claimed)123hp / 91.7kW
Drawbar (tested)102.09hp / 76.1kW
Pto (tested)123.85hp / 92.4kW

Engine Detail

DescriptionAllis Chalmers 649I intercooled turbocharged diesel 6-cylinder liquid-cooled Inline
Displacement301ci / 4.9L
Bore/stroke3.875x4.25inches / 98x 108mm
Power146hp / 108.9kW
Air Cleanerdry with pre-cleaner
Compression16.25:1
Rated Rpm2300
Firing Order1-5-3-6-2-4
Starter Volts12
Oil Capacity20qts / 18.9L
Coolant Capacity26qts / 24.6L

Engine

DescriptionAllis Chalmers 4.9L 6-cyl diesel
Fuel Tank51gal / 193.0L 13gal / 49.2L (optional auxiliary tank)

Mechanical

Chassis4x2 2WD
Final Drivesinboard planetary
Steeringhydrostatic power
Brakesdifferential power wet disc
CabAcousta cab standard with heat. Air-conditioning optional. Radio and eight-track player optional
Transmissions16-speed partial power shift 20-speed partial power shift 12-speed partial power shift

Tires

Ag Front10.00x16
Ag Rear24.5x32 / 30.5x32 / 20.8x34 / 15.5x38 / 16.9x38 / 18.4x38 / 20.8x38

Dimensions

Wheelbase106inches / 269cm
Length163inches / 414cm
Width92.6inches / 235cm 118.7inches / 301cm (optional long axle)
Ground Clearance21inches / 53cm (front axle) 28inches / 71cm (rear axle)
Rear Axle3.625inch diameter / 92mm

Dimensions And Tires

Wheelbase106inches / 269cm
Weight10820 to 11700 pounds
Front Tire11.00x16
Rear Tire18.4x38

Serial Numbers

LocationAbove PTO shield
19781317
19792732
19803842
19814710

Hydraulics

Typeclosed center
Valves2 or 3
Pump Flow22gpm / 83.3lpm
Total Flow45gpm / 170.3lpm
Steering Flow9.5gpm / 36.0lpm

Tractor Hitch

Rear Type3/2
Rear Lift (at 246,680lbs / 3030kg

Power Take Off Pto

Rear Ptoindependent
Rear Rpm540/1000

Weight

Shipping10,820lbs / 4907kg
Operating11,700lbs / 5307kg
Ballasted15,610lbs / 7080kg

Height

Steering Wheel87inches / 220cm
Hood68inches / 172cm
Exhaust116inches / 294cm

Searching for Allis Chalmers 7020 Parts? Discover Suppliers and Request Samples Now!

Find Suppliers & Request Samples

Other Allis Chalmers tractors:

Allis Chalmers 10-18, Allis Chalmers 160, Allis Chalmers 170, Allis Chalmers 175, Allis Chalmers 18-30, Allis Chalmers 180, Allis Chalmers 185, Allis Chalmers 190, Allis Chalmers 190XT, Allis Chalmers 20-35, Allis Chalmers 200, Allis Chalmers 210, Allis Chalmers 220, Allis Chalmers 25-40, Allis Chalmers 440, Allis Chalmers 4W-220, Allis Chalmers 4W-305, Allis Chalmers 5020, Allis Chalmers 5030, Allis Chalmers 5040, Allis Chalmers 5045, Allis Chalmers 5050, Allis Chalmers 6-12, Allis Chalmers 6040, Allis Chalmers 6060, Allis Chalmers 6070, Allis Chalmers 6080, Allis Chalmers 6140, Allis Chalmers 616, Allis Chalmers 620, Allis Chalmers 7000, Allis Chalmers 7010, Allis Chalmers 7020, Allis Chalmers 7030, Allis Chalmers 7040, Allis Chalmers 7045, Allis Chalmers 7050, Allis Chalmers 7060, Allis Chalmers 7080, Allis Chalmers 720, Allis Chalmers 7580, Allis Chalmers 8010, Allis Chalmers 8030, Allis Chalmers 8050, Allis Chalmers 8070, Allis Chalmers A, Allis Chalmers B, Allis Chalmers C, Allis Chalmers CA, Allis Chalmers D10, Allis Chalmers D12, Allis Chalmers D14, Allis Chalmers D15, Allis Chalmers D19, Allis Chalmers D270, Allis Chalmers E 30-60, Allis Chalmers FD3, Allis Chalmers FD5, Allis Chalmers G, Allis Chalmers HD11, Allis Chalmers HD16A, Allis Chalmers HD20, Allis Chalmers HD3, Allis Chalmers HD6, Allis Chalmers HD9, Allis Chalmers T16, Allis Chalmers UC, Allis Chalmers WF,