John Deere 80 Specs ( 1955-1956 )
Overview
The John Deere 80 is a heavy-duty farm tractor manufactured between 1955 and 1956, featuring a powerful 7.7L 2-cylinder diesel engine and a 6-speed unsynchronized gear transmission. This standard-tread model is notable for its tested belt power of 65.33 hp and a robust V4 gasoline pony motor starter system.
Ideal Applications
Heavy Tillage and Pulling:
With a tested drawbar pull of 7,394 lbs and a ballasted weight of 11,485 lbs, this tractor is designed for demanding field work requiring significant traction and power.
Stationary Power Applications:
The 12.2-inch belt pulley system delivers a tested 65.33 hp at 1125 RPM, making it highly effective for operating belt-driven machinery.
Long-Duration Field Operations:
Equipped with a large 32.5-gallon fuel tank and efficient diesel consumption of 3.7 gal/hour at max belt power, it is well-suited for extended work cycles.
Production
| Description | Standard-tread tractor / Built in Waterloo, Iowa, USA |
|---|---|
| Manufacturer | John Deere |
| Total built | 3,485 |
Engine
| Aux. fuel | 0.25 gal (0.9 L) |
|---|---|
| Engine type | John Deere 7.7L 2-cyl diesel |
| Fuel tank | 32.5 gal (123.0 L) |
| Air cleaner | oil bath |
| Bore/Stroke | 6.125x8.00 inches (156 x 203 mm) |
| Compression | 16:1 |
| Coolant capacity | 35 qts (33.1 L) |
| Description | John Deere / diesel / 2-cylinder 4-valve / liquid-cooled |
| Displacement | 470.7 ci (7.7 L) |
| Firing order | 1-2 |
| Rated RPM | 1125 |
| Starter type | V4 gasoline pony motor |
| Belt (claimed) | 57.49 hp (42.9 kW) |
| Belt (tested) | 65.33 hp (48.7 kW) |
| Drawbar (claimed) | 46.32 hp (34.5 kW) |
| Drawbar (tested) | 60.36 hp (45.0 kW) |
Transmission
| Clutch | dry disc |
|---|---|
| Gears | 6 forward and 1 reverse |
| Transmission | John Deere |
| Transmission type | 6-speed unsynchronized gear |
| Type | unsynchronized gear |
Mechanical
| Cab | Open operator station. Optional steel cab. |
|---|---|
| Description | Mechanical expanding shoe brakes |
| Drive type | Two-wheel drive |
| Steering | manual |
PTO
| Rear PTO Type | 540 |
|---|
Electrical
| Battery volts | 6 |
|---|---|
| Ground | positive |
Dimensions & Tires
| Ballasted weight | 11485 lbs (5209 kg) |
|---|---|
| Front tread | 56.5 inches (143 cm) |
| Height | 81 inches (205 cm) |
| Length | 142.75 inches (362 cm) |
| Rear tread | 64.5/68.5 inches (163/173 cm) |
| Weight | 8300 lbs (3764 kg) |
| Wheelbase | 85.5 inches (217 cm) |
| Width | 79.5 inches (201 cm) |
| Front tire | 7.50-18 |
| Rear tire | 15-34 |
| Weight | 8300 lbs (3764 kg) |
| Wheelbase | 85.5 inches (217 cm) |
| Ag front | 7.50-18 |
| Ag rear | 15-34 |
80 Serial Number Location
| Description | Serial number plate on the right side of the John Deere 80, ahead of the pulley and below the fuel filter. |
|---|
80 Serial Numbers
| 1955 | 8000001 |
|---|---|
| 1956 | 8000776 |
| Description | FAQ: How to read a serial number table. |
| Final | 8003500 |
Belt Pulley
| Diameter | 12.2 inches (30 cm) |
|---|---|
| RPM | 1125 |
| Speed | 3599 ft/min (1096.98 meters/min) |
| Width | 9 inches (22 cm) |
Nebraska Tractor Test 567
| Belt fuel use (max) | 3.7 gal/hour (14.0 l/hour) |
|---|---|
| Belt power (max) | 65.33 hp (48.7 kW) |
| Description | Diesel 6-speed 2WDOctober 27 - November 1, 1955Link: Nebraska Tractor Test 567 file / Drawbar performance / Gear 5 used for power test. / Gear 1 used for pull test. |
| Max power | 60.36 hp (45.0 kW) |
| Max pull | 7,394 lbs (3353 kg) |
References
| Description | The First Numbered Series of John Deere Tractors published in 2004, by Hain Publishing / Tractors 1918-1976 published by John Deere* / *Publication contains known errors. |
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