| Manufacturer | John Deere |
| Price | 2,800(USD) |
| Model | 70 |
| Equipment Type | Row-Crop Tractors |
| Factory | Waterloo, Iowa, USA |
NEBRASKA TRACTOR TEST 493 2
| Description | Gasoline 6-speed 2WD/May 15 - 20, 1953/Link: Nebraska Tractor Test 493 file/Drawbar performance/Gear 3 used for power test./Gear 1 used for pull test. |
| Belt power (max) | 48.29 hp/36.0 kW |
| Belt fuel use (max) | 4.5 gal/hour/17.0 l/hour |
| Max power | 42.24 hp/31.5 kW |
| Max pull | 5,453 lbs/2473 kg |
NEBRASKA TRACTOR TEST 506 2
| Description | Tractor fuel 6-speed 2WD/September 251953, - October 1, 1953/Link: Nebraska Tractor Test 506 file/Drawbar performance/Gear 3 used for power test./Gear 1 used for pull test. |
| Belt power (max) | 43.15 hp/32.2 kW |
| Belt fuel use (max) | 4.2 gal/hour/15.9 l/hour |
| Max power | 39.58 hp/29.5 kW |
| Max pull | 5,102 lbs/2314 kg |
NEBRASKA TRACTOR TEST 514 2
| Description | LP gas 6-speed 2WD/November 6 - 12, 1953/Link: Nebraska Tractor Test 514 file/Drawbar performance/Gear 3 used for power test./Gear 1 used for pull test. |
| Belt power (max) | 50.86 hp/37.9 kW |
| Belt fuel use (max) | 5.8 gal/hour/22.0 l/hour |
| Max power | 45.60 hp/34.0 kW |
| Max pull | 6,127 lbs/2779 kg |
NEBRASKA TRACTOR TEST 528 2
| Description | Diesel 6-speed 2WD/October 19 - 22, 1954/Link: Nebraska Tractor Test 528 file/Drawbar performance/Gear 4 used for power test./Gear 1 used for pull test. |
| Belt power (max) | 50.40 hp/37.6 kW |
| Belt fuel use (max) | 2.8 gal/hour/10.6 l/hour |
| Max power | 45.09 hp/33.6 kW |
| Max pull | 6,189 lbs/2807 kg |
JOHN DEERE 70 POWER
| Drawbar (tested) | 45.60 hp/34.0 kW |
| Belt (tested) | 50.86 hp/37.9 kW |
ENGINES OVERVIEW
The John Deere 70 tractor features versatile engine options, including a 6.2L 2-cylinder gasoline engine, a 6.8L 2-cylinder all-fuel engine, a 6.2L 2-cylinder LP gas option, and a 6.2L 2-cylinder diesel variant. This allows for adaptability across different fuel types, enhancing operational flexibility; however, the varying fuel systems may complicate maintenance and parts availability. It is ideal for small to medium-sized farms where diverse fuel access is beneficial, but users should consider fuel efficiency and power output relative to specific agricultural tasks.
| Description | John Deere 6.2L 2-cyl gasoline/John Deere 6.8L 2-cyl all-fuel/John Deere 6.2L 2-cyl LP gas/John Deere 6.2L 2-cyl diesel |
ENGINE DETAIL 1
The John Deere 70 tractor features a robust 2-cylinder gasoline engine with a displacement of 379.5 ci, delivering reliable torque at a low compression ratio of 6.15:1, making it suitable for light agricultural tasks and vintage restoration projects. Its oil bath air cleaner enhances durability and performance by reducing dust intake, while the liquid cooling system, with a coolant capacity of 34 quarts, helps maintain optimal operating temperatures under load. However, the limited rated RPM of 975 may restrict its power output for high-speed applications, which could be a challenge for demanding farming environments.
| Description | John Deere/gasoline/2-cylinder 4-valve/liquid-cooled |
| Displacement | 379.5 ci/6.2 L |
| Bore/Stroke | 5.875x7.00 inches/149 x 178 mm |
| Air cleaner | oil bath |
| Compression | 6.15:1 |
| Rated RPM | 975 |
| Firing order | 1-2 |
| Starter volts | 12 |
| Coolant capacity | 34 qts/32.2 L |
ENGINE DETAIL 2
The John Deere 70, featuring a liquid-cooled, all-fuel 2-cylinder engine with a displacement of 412.5 ci (6.8 L), benefits from its robust design, ideal for agricultural applications requiring versatile fuel use. With a low compression ratio of 4.6:1 and a rated RPM of 975, it is optimized for torque delivery rather than high-speed operation, making it suitable for heavy pulling tasks or slow-speed fieldwork. However, the low RPM can limit its use in applications requiring higher speeds, necessitating consideration of the operational needs before selection for specific tasks.
| Description | John Deere/all-fuel/2-cylinder/liquid-cooled |
| Displacement | 412.5 ci/6.8 L |
| Bore/Stroke | 6.125x7.00 inches/156 x 178 mm |
| Compression | 4.6:1 |
| Rated RPM | 975 |
| Firing order | 1-2 |
| Starter volts | 12 |
ENGINE DETAIL 3
The John Deere 70 tractor's 2-cylinder liquid-cooled engine with a 379.5 ci (6.2 L) displacement and a 7.3:1 compression ratio provides robust low-end torque, ideal for agricultural tasks at lower RPMs (975). Its LP gas fuel system offers cleaner emissions and can enhance fuel efficiency in comparison to traditional gasoline engines, although it might pose a challenge in refueling accessibility. With a bore/stroke ratio of 5.875x7.00 inches, this configuration can favor long stroke characteristics, resulting in increased power at lower speeds, beneficial for plowing and pulling operations.
| Description | John Deere/LP gas/2-cylinder/liquid-cooled |
| Displacement | 379.5 ci/6.2 L |
| Bore/Stroke | 5.875x7.00 inches/149 x 178 mm |
| Compression | 7.3:1 |
| Rated RPM | 975 |
| Firing order | 1-2 |
| Starter volts | 12 |
ENGINE DETAIL 4
The John Deere 70 tractor, featuring a liquid-cooled, 2-cylinder diesel engine with a displacement of 375.6 ci and a compression ratio of 16:1, delivers robust torque for agricultural tasks. Its use of a gasoline pony engine for starting introduces potential reliability challenges, particularly in colder climates, but offers a lower initial fuel requirement. With a moderate oil (12 qts) and coolant capacity (28 qts), maintenance is manageable, yet regular checks are essential to prevent overheating during prolonged operations.
| Description | John Deere/diesel/2-cylinder/liquid-cooled/The diesel engine on the model 70 used a 18.85 cubic inch 4-cylinder starting engine. |
| Displacement | 375.6 ci/6.2 L |
| Bore/Stroke | 6.125x6.375 inches/156 x 162 mm |
| Compression | 16:1 |
| Rated RPM | 1125 |
| Firing order | 1-2 |
| Starter | Gasoline pony engine |
| Starter volts | *Electric starter on pony engine |
| Oil capacity | 12 qts/11.4 L |
| Coolant capacity | 28 qts/26.5 L |
JOHN DEERE 70 ENGINES
The John Deere 70 tractor offers multiple fuel options: gasoline, all-fuel, LP gas, and diesel, allowing for flexible use based on availability and user preference. Notably, the LP gas variant has the largest fuel tank capacity at 33 gallons, enhancing operational endurance in extended tasks, while the diesel variant provides a robust option with a still significant 20-gallon tank. A potential challenge includes maintaining compatibility with various fuels, as this may affect performance characteristics and fuel efficiency depending on the selected fuel type.
| Description | John Deere 6.2L 2-cyl gasoline/John Deere 6.8L 2-cyl all-fuel/John Deere 6.2L 2-cyl LP gas/John Deere 6.2L 2-cyl diesel |
| Gas Fuel tank | 24.5 gal/92.7 L |
| Diesel Fuel tank | 20 gal/75.7 L |
| LP gas Fuel tank | 33 gal/124.9 L |
| Aux. fuel | 1.75 gal/6.6 L/0.25 gal/0.9 L (diesel) |
TRANSMISSION
The John Deere 70 features an unsynchronized gear system with 6 forward and 1 reverse gear, offering versatility in various applications. The dry disc clutch can provide reliable engagement but may require more maintenance than hydraulic options. It is crucial to operate reverse only in low range to avoid safety issues, making it essential for operators to be familiar with gear settings to maximize efficiency while minimizing risks.
| Manufacturer | John Deere |
| Type | unsynchronized gear |
| Gears | 6 forward and 1 reverse |
| Clutch | dry disc |
| Description | Three gears, plus reverse, in two ranges. Reverse is available in both direct (high) and underdrive (low) although Deere only advertised the use of reverse in low range. Use of reverse in high range may be dangerously fast. |
SPEEDS
| Description | With 12-38 rear tires./ |
MECHANICAL
The John Deere 70's 4x2 2WD chassis offers simplicity and lower maintenance, ideal for light agricultural tasks but may struggle in slippery conditions due to lack of traction. The manual or optional power steering enhances maneuverability, while the differential mechanical expanding shoe brakes provide reliable stopping but require regular adjustment for optimal performance. Its 6-speed unsynchronized transmission may limit speed variations, making it less suitable for applications requiring frequent speed changes, but is durable for consistent operations.
| Chassis | 4x2 2WD |
| Steering | manual/power optional |
| Brakes | differential mechanical expanding shoe |
| Cab | Open operator station |
| Transmission | 6-speed unsynchronized gear |
POWER TAKE-OFF (PTO)
| Rear PTO | transmission/independent |
| Rear RPM | 540 |
JOHN DEERE 70 TIRES
The John Deere 70 tractor features 6.00-16 front tires and 13-38 rear tires, providing a balanced distribution of weight and traction, ideal for plowing and tilling tasks in diverse soil conditions. Its tire configuration enhances stability and maneuverability, though the larger rear tires may pose challenges in tight spaces or steep gradients. Overall, this setup is well-suited for medium-sized farms, delivering effective performance in both fieldwork and transport applications.
| Ag front | 6.00-16 |
| Ag rear | 13-38 |
DIMENSIONS
| Wheelbase | 91 inches/231 cm |
| Length | 136.25 inches/346 cm/137 inches/347 cm (diesel) |
| Width | 86.625 inches/220 cm |
| Height | 65.5625 inches/166 cm/88 inches/223 cm (diesel) |
| Rear axle | 3.125 by 86.625 inches/79 by 2200 mm |
| Front tread | 48 to 80 inches/121 to 203 cm*Square tube |
| Rear tread | 66.5 to 105.25 inches/168 to 267 cm (extra-long axle) |
JOHN DEERE 70 WEIGHT
| Gas Operating | 6538 lbs/2965 kg |
| Diesel Operating | 7079 lbs/3211 kg |
| Ballasted | 9000 lbs/4082 kg |
DIMENSIONS & TIRES
The John Deere 70 tractor features a wheelbase of 91 inches, providing good stability and maneuverability for various agricultural tasks. Weighing between 6538 and 7079 pounds, this tractor is suitable for heavy-duty applications, but operators must consider potential ground compaction on softer terrain. The front tire size of 6.00-16 and rear tire size of 12-38 allow for effective traction and load distribution, making it advantageous for plowing and tilling operations.
| Wheelbase | 91 inches/231 cm |
| Weight | 6538 to 7079 pounds |
| Front tire | 6.00-16 |
| Rear tire | 12-38 |
70 SERIAL NUMBERS
| Location | Right side of tractor frame, forward of and below the belt pully. |
| 1953 | 7000001 |
| 1954 | 7005692 |
| 1955 | 7017501 |
| 1956 | 7034950 |
BELT PULLEY
| Diameter | 12.875 inches/32 cm |
| Width | 7.375 inches/18 cm |
| RPM | 1125 |
| Speed | 3790 ft/min/1155.19 meters/min |
ELECTRICAL
| Ground | positive |
| Batteries | 2 (gas)/1 (diesel) |
| Battery volts | 6 |