| Manufacturer |
John Deere |
| Price |
7,080(USD) |
| Model |
820 |
| Equipment Type |
Standard-Tread Tractors |
| Factory |
Waterloo, Iowa, USA |
ENGINE DETAIL
The John Deere 820 features a robust diesel 2-cylinder engine with a displacement of 7.7L, providing ample torque for heavy-duty agricultural tasks. Its oil bath air cleaner enhances particulate filtration, contributing to engine longevity, though it may require more maintenance than dry alternatives. The gasoline pony motor starter is advantageous for cold starts, but introduces additional complexity, which could be a consideration for users seeking simplicity in operation.
| Description |
John Deere diesel 2-cylinder liquid-cooled |
| Displacemen |
470.7ci / 7.7L |
| Bore/Strok |
6.125x8.00inches / 156x 203 mm |
| Air cleane |
oil bath |
| Rated RP |
1125 |
| Firing orde |
1-2 |
| Starter typ |
gasoline pony motor |
| Coolant capacit |
8 qts/7.6 L |
JOHN DEERE 820 ENGINE
The John Deere 820 features a robust 7.7L 2-cylinder diesel engine, providing adequate power for various agricultural tasks with enhanced fuel efficiency. The 32.5-gallon fuel tank allows for extended operational periods, minimizing downtime in the field, while the auxiliary fuel tank, although small at 0.25 gallons, is designed for additional storage of fuel additives or emergency needs. However, operators should consider the tractor's weight limitations and compatibility with specific implements to optimize performance and prevent overloading during use.
| Description |
John Deere 7.7L 2-cyl diesel |
| Fuel tan |
32.5gal / 123.0L |
| Aux. fue |
0.25gal / 0.9L |
TRANSMISSION
The John Deere 820 features an unsynchronized 6-speed forward and 1-speed reverse gear system, providing versatility in various operations. The 9-inch dry disc clutch offers reliable engagement but may present challenges during engagement under load. The optional low-speed first gear, with a maximum speed of 1.75 MPH, is advantageous for tasks requiring precision, such as planting or hauling heavy loads.
| Manufacture |
John Deere |
| Typ |
unsynchronized gear |
| Gear |
6 forward and 1 reverse |
| Clutc |
9-inch dry disc |
| Description |
Optional low-speed first gear was 1.75 MPH. |
SPEEDS
| Description |
With 15-34 rear tires |
JOHN DEERE 820 TRANSMISSION
The John Deere 820 tractor's 6-speed unsynchronized gear system allows for smooth transitions between speeds but may present challenges with shifting under load due to its unsynchronized nature. This can be advantageous in applications requiring consistent speed without frequent gear changes, such as in row crop farming. However, operators will need to be adept in gear management to prevent potential drivetrain wear.
| Description |
6-speed unsynchronized gear |
MECHANICAL
The John Deere 820 features a two-wheel drive system, providing adequate traction for light to moderate agricultural tasks, but may struggle in heavier, off-road conditions. The optional steel cab enhances operator comfort and protection, though it adds weight and cost to the unit. Manual steering is standard, but the optional power steering can improve maneuverability, especially in tight spaces or during prolonged use.
| Description |
Two-wheel drive Open operator station. Steel cab optional. |
| Steerin |
manual/power optional |
HYDRAULICS
POWER TAKE-OFF (PTO)
| Rear PT |
independent |
| Rear RP |
540 |
JOHN DEERE 820 TIRES
The John Deere 820 tractor features a front tire size of 7.50-18, offering adequate grip for maneuverability in agricultural contexts, while the rear tire options of 14-34 or 18-26 provide flexibility in load capacity and stability. A potential advantage is its balance between power and size, making it effective for medium-scale farming tasks. However, the choice of rear tires may affect traction in varying soil conditions, which is crucial for optimizing performance during cultivation or transport.
| Ag fron |
7.50-18 |
| Ag rea |
14-34/18-26 |
DIMENSIONS & TIRES
The John Deere 820 tractor features a wheelbase of 85.25 inches, providing stability during field operations and enhancing maneuverability in tight spaces. Weighing between 7,850 to 8,600 pounds, it offers robust traction and stability for agricultural tasks, but this weight may limit mobility on softer terrains. The front tire size of 7.50-18 and rear tire size of 15-34 indicates a design optimized for balance between power and ground contact, although tire mismatches could lead to uneven wear or reduced efficiency during heavy loads.
| Wheelbas |
85.25inches / 216cm |
| Weigh |
7850 to 8600 pounds |
| Front tir |
7.50-18 |
| Rear tir |
15-34 |
820 SERIAL NUMBERS
| 195 |
8203850 (black-dash) |
| Fina |
8207080 (black-dash) |
BELT PULLEY
| Diamete |
12.2inches / 30cm |
| Widt |
9 inches/22 cm |
| RP |
1125 |
| Spee |
3,600ft/min / 1097.28 meters/min |
ELECTRICAL
| Groun |
positive |
| Battery volt |
6 |
