Introduction
Allis Chalmers 5020 Compact Utility Tractor
Produced between 1977 and 1985, the Allis Chalmers 5020 is a compact utility tractor manufactured by Hinomoto in Osaka, Japan. Designed for versatility in agricultural and property maintenance, this machine served as a reliable workhorse for small to medium-scale operations.
Engine Specifications
The tractor is powered by a 1.3-liter, liquid-cooled engine producing 25 horsepower (18.6 kW) at a rated speed of 2500 RPM. It features a compression ratio of 23.0:1 and utilizes a single paper element air cleaner. The engine requires 4.7 liters of oil and 5.0 liters of coolant, with a recommended oil change interval of 100 hours.
Transmission and Drive
The 5020 offers two unsynchronized gear transmission options: an 8-speed forward and 2-reverse configuration, or a 12-speed forward and 3-reverse configuration that includes a creeper range. Both systems utilize a 215mm dry disc clutch. The tractor was available in both two-wheel drive and four-wheel drive variants.
Hydraulics and PTO
Equipped with an open-center hydraulic system, the tractor provides a pump flow of 20.6 lpm (5.44 gpm) with a total hydraulic capacity of 20.8 liters. The rear Power Take-Off (PTO) operates at 540 RPM at an engine speed of 2320 RPM.
Chassis and Dimensions
The tractor features a wheelbase of 151 cm and an overall length of 251 cm, providing a compact footprint. It is equipped with mechanical drum and shoe brakes and manual steering. The rear hitch is a Category I design, allowing for the attachment of various implements. The machine's ground clearance is 32 cm at the front axle and 35 cm at the rear axle.
Conclusion
With 8,500 units produced, the Allis Chalmers 5020 is recognized for its straightforward mechanical design and reliability. Its compact dimensions and flexible transmission options make it well-suited for general farm tasks, landscaping, and property maintenance where maneuverability is essential.
Production Information of Allis Chalmers, 5020
- Built in Osaka, Japan
- Original price was $8,280 in 1985
- Compact Utility tractor
| Distributor | Allis Chalmers |
|---|---|
| Total built | 8,500 |
| Manufacturer | Hinomoto |
Dimension and Tires Information of Allis Chalmers, 5020
| Rear tread | 39.2/51 inches [99/129 cm] |
|---|---|
| Wheelbase | 59.8 inches [151 cm] |
| Clearance (rear axle) | 14 inches [35 cm] |
| Clearance (front axle) | 12.6 inches [32 cm] |
| Length | 98.9 inches [251 cm] |
| Front tread | 38.6 inches [98 cm] |
| Width | 48 inches [121 cm] |
| Ag front | 5.00-15 (2WD) |
|---|---|
| Lawn/turf front | 20x8.00-10 |
| Lawn/turf front(optional) | 11.2x24 |
| Lawn/turf front(optional) | 6.00x14 (4WD) |
| Lawn/turf rear | 13.6-16 |
| Ag rear | 9.5-24 |
Engine Specifications of Allis Chalmers, 5020
- Liquid-cooled
| Coolant capacity | 5.3 qts [5.0 L] |
|---|---|
| Air cleaner | Single paper element |
| Compression | 23.0:1 |
| Idle RPM | 750-2750 |
| Rated RPM | 2500 |
| Displacement | 77.1 ci [1.3 L] |
| Oil capacity | 5 qts [4.7 L] |
| Power | 25 hp [18.6 kW] |
| Oil change | 100 h |
| Bore/Stroke | 3.62x3.74 inches [92 x 95 mm] |
| Starter volts | 12 |
| Starter | Electric |
| Firing order | 1-2 |
Transmission Information of Allis Chalmers, 5020
Transmission variants 1
- Four gears, plus reverse, with high and low ranges. The eight-speed appears to only have been available during early production.
| Type | Unsynchronized gear |
|---|---|
| Oil type | Power Fluid 821 |
| Oil capacity | 22 qts [20.8 L] |
| Gears | 8 forward and 2 reverse |
| Gears(optional) | Power Fluid 821 |
| Clutch | 215mm dry disc |
Transmission variants 2
- Four gears, plus reverse, with high, low, and creeper ranges. The 12-speed is commonly listed as the standard transmission.
| Type | Unsynchronized gear |
|---|---|
| Oil type | Power Fluid 821 |
| Oil capacity | 22 qts [20.8 L] |
| Gears | 12 forward and 3 reverse |
| Gears(optional) | Power Fluid 821 |
| Clutch | 215mm dry disc |
- 8-speed unsynchronized gear
- 12-speed unsynchronized gear
Mechanical Specs of Allis Chalmers, 5020
- Two- or four-wheel drive
- Two-post ROPS, optional ROPS canopy
- Manual steering
- Differential mechanical drum and shoe brakes
Power Information of Allis Chalmers, 5020
| Rear PTO | Transmission |
|---|---|
| Engine RPM | 540@2320 |
| Engine RPM(optional) | Live |
| Rear PTO Type | 540 |
Hydraulics Specifications of Allis Chalmers, 5020
| Type | Open center |
|---|---|
| Pump flow | 5.44 gpm [20.6 lpm] |
| Capacity | 5.5 gal [20.8 L] |
| Valves | 0 or 1 |
Three-Point Hitch of Allis Chalmers, 5020
| Rear Type | I |
|---|
Electrical System of Allis Chalmers, 5020
| Ground | Negative |
|---|---|
| Battery AH | 70 |
| Battery volts | 12 |
| Charging system | Alternator |
| Charging amps | 15 |
Where it sits
With 25 HP, the Allis Chalmers 5020 sits between 5015 (18 HP) and 5030 (31 HP) in Allis Chalmers's range. Its power puts it in the 14th percentile of 1970s models in our database (1259 machines).
Frequently asked questions
How much horsepower does the Allis Chalmers 5020 have?
The Allis Chalmers 5020 delivers 25 HP.
What years was the Allis Chalmers 5020 produced?
The Allis Chalmers 5020 was produced in 1977-1985.
What transmission does the Allis Chalmers 5020 use?
The Allis Chalmers 5020 uses a Unsynchronized gear transmission.
Is the Allis Chalmers 5020 4WD?
The Allis Chalmers 5020 is available in 2WD/4WD.