| Manufacturer | John Deere |
| Price | 6,715(USD) |
| Model | 830 |
| Equipment Type | Standard-Tread Tractors |
| Factory | Waterloo, Iowa, USA |
NEBRASKA TRACTOR TEST 632 2
| Description | Diesel 6-speed 2WD October 14 - 18, 1957 Link: Nebraska Tractor Test 632 file Drawbar performance Gear 3 used for power test. Gear 1 used for pull test |
| Belt power (max) | 72.82hp / 54.3kW |
| Belt fuel use (max) | 4.2gal/hour / 15.9l/hour |
| Max power | 67.15hp / 50.1kW |
| Max pull | 8,667lbs / 3931kg |
JOHN DEERE 830 POWER
| Drawbar (claimed) | 69.66hp / 51.9kW |
| Belt (claimed) | 75.6hp / 56.4kW |
| Plows | 6 |
| Drawbar (tested) | 67.15hp / 50.1kW |
| Belt (tested) | 72.82hp / 54.3kW |
ENGINE DETAIL
The John Deere 830 tractor features a robust 2-cylinder diesel engine with a substantial displacement of 470.7 ci (7.7L), delivering reliable power suitable for agricultural tasks. With a compression ratio of 16:1 and an oil bath air cleaner, it offers efficient combustion and engine longevity, although it may present challenges in maintenance due to the oil bath system. The 24-volt electric starter option enhances starting reliability under load, making it advantageous in colder climates, while the choice of a gasoline pony engine allows for alternative starting methods.
| Description | John Deere diesel 2-cylinder liquid-cooled |
| Displacement | 470.7ci / 7.7L |
| Bore/Stroke | 6.125x8.00inches / 156x 203 mm |
| Air cleaner | oil bath |
| Compression | 16:1 |
| Rated RPM | 1125 |
| Firing order | 1-2 |
| Starter | Gasoline pony engine/electric optional |
| Starter volts | 24 |
| Coolant capacity | 24qts / 22.7L |
JOHN DEERE 830 ENGINE
The John Deere 830 features a robust 7.7L 2-cylinder diesel engine, delivering optimal torque and fuel efficiency for various agricultural tasks. With a fuel tank capacity of 32.5 gallons (123.0 liters), it offers extended operational time between refuels, making it well-suited for long fieldwork sessions. However, the 2-cylinder design may limit power output in highly demanding tasks compared to 4-cylinder counterparts, necessitating careful workload planning.
| Description | John Deere 7.7L 2-cyl diesel |
| Fuel tank | 32.5gal / 123.0L |
TRANSMISSION
The John Deere 830 features an unsynchronized transmission with 6 forward gears and 1 reverse, offering versatility for various farming tasks. The optional creeper gear enables precise low-speed operation at 1.75 MPH, ideal for plowing or other detailed work. However, the unsynchronized design may pose challenges during gear shifting under load, requiring more operator skill to manage effectively.
| Type | unsynchronized |
| Gears | 6 forward and 1 reverse |
| Description | Optional creeper first gear has 1.75 MPH speed. |
SPEEDS
| Description | With 15-34 rear tires |
MECHANICAL
The John Deere 830 tractor, with its 4x2 2WD configuration, is well-suited for tasks requiring moderate traction on firm surfaces, but may struggle in slippery conditions. The hydraulic power steering enhances maneuverability, reducing operator fatigue, while the 6-speed unsynchronized transmission offers simplicity at the cost of smooth shifting. Its optional cab provides increased comfort in adverse weather, though its open station design may limit operator protection during inclement conditions.
| Chassis | 4x2 2WD |
| Steering | hydraulic power |
| Brakes | mechanical expanding shoe |
| Cab | open operator station/cab optional |
| Transmission | 6-speed unsynchronized |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Rear RPM | 549 |
JOHN DEERE 830 TIRES
The John Deere 830 tractor features an agricultural front tire size of 7.50-18 and rear tire options of either 14-34 or 18-26, allowing for versatility in traction and load capacity. The larger rear tire size enhances stability and flotation in softer soils, making it ideal for various field conditions but may introduce challenges in tight turning radius during operation. Overall, its robust design suits both row cropping and general farming tasks, balancing power with efficiency in the field.
| Ag front | 7.50-18 |
| Ag rear | 14-34/18-26 |
DIMENSIONS
| Wheelbase | 85.25inches / 216cm |
| Length | 142.75inches / 362cm |
| Width | 79.5inches / 201cm |
| Height | 81inches / 205cm |
| Front tread | 56.5 to 63inches / 143to 160 cm |
| Rear tread | 64.5 to 68.5inches / 163to 173 cm |
JOHN DEERE 830 WEIGHT
| Shipping | 7,850lbs / 3560kg |
| Operating | 8,635lbs / 3916kg |
| Ballasted | 11,995lbs / 5440kg |
DIMENSIONS & TIRES
The John Deere 830's 85.25-inch wheelbase provides stability, making it suitable for various agricultural tasks, while its weight range of 7850 to 8635 pounds enhances traction and balance in rugged terrains. The front tire size of 7.50-18 and rear tire size of 15-34 support efficient power transfer during field operations, but may limit maneuverability in tight spaces. This tractor excels in mid-sized farms, offering a balance of power and versatility, advantageous for both cultivating and harvesting.
| Wheelbase | 85.25inches / 216cm |
| Weight | 7850 to 8635 pounds |
| Front tire | 7.50-18 |
| Rear tire | 15-34 |
830 SERIAL NUMBERS
| Location | Right side ahead of pulley |
| 1958 | 8300000 |
| 1959 | 8300727 |
| 1960 | 8305302 |
| 1961 | 8306892 |
BELT PULLEY
| Diameter | 12.2inches / 30cm |
| Width | 9 inches /22 cm |
| RPM | 1125 |
| Speed | 3,600ft/min / 1097.28 meters/min |
ELECTRICAL
| Ground | positive |
| Batteries | 1 (pony)/4 (electric-start) |
| Battery volts | 6 |