John Deere 8400 (1995-1996)

The John Deere 8400, produced from 1995 to 1996, is a highly regarded row-crop tractor known for its exceptional performance and reliability. Manufactured by John Deere in Waterloo, Iowa, USA, it has earned a strong reputation among farmers and operators for its versatility and power. With a turbocharged diesel engine, advanced transmission, and a range of hydraulic capabilities, it’s well-equipped to handle a variety of agricultural tasks. The tractor is also designed with operator comfort in mind, featuring a CommandView Cab as the standard configuration. Overall, the John Deere 8400 remains a trusted workhorse in the world of agriculture.

Production:1995 to 1996:
ManufacturerJohn Deere
TypeRow-Crop Tractor
FactoryWaterloo, Iowa, USA
Power
PTO (Claimed)225 hp (167.8 kW)
Drawbar (Tested)202.28 hp (150.8 kW)
PTO (Tested)252.21 hp (188.1 kW)
Engine Detail
ManufacturerJohn Deere
Engine TypeTurbocharged aftercooled diesel
Cylinders6-cylinder, 12-valve
CoolingLiquid-cooled inline
Displacement496 ci (8.1 L)
Bore/Stroke4.56×5.06 inches (116 x 129 mm)
Compression Ratio15.1:1
Rated RPM2200
Starter Volts12
Oil Capacity29.6 qts (28.0 L)
Coolant Capacity30 qts (28.4 L)
Transmission
Transmission TypeJohn Deere PowerShift
TypeFull power shift
Gears16 forward and 4 reverse
ClutchHydraulic wet disc
Oil Capacity148 qts (140.1 L)
Mechanical
Chassis4×4 MFWD 4WD
Final DrivesInboard planetary
Differential LockElectro-hydraulic
SteeringPower
BrakesDifferential hydraulic wet disc
CabCommandView Cab standard, Row-Trak guidance optional
Capacity
Fuel135 gal (511.0 L)
Hydraulic System37 gal (140.0 L)
Front Hubs3.2 qts (3.0 L each)
Front Diff.11.5 qts (10.9 L)
Hydraulics
TypeClosed-center pressure-flow compensated (PFC)
Capacity37 gal (140.0 L)
Pressure2900 psi (200.0 bar)
Valves3 to 5
SCV Flow30 gpm (113.6 lpm)
Tractor Hitch
Rear Type3/3N
ControlElectro-hydraulic draft sensing
Rear Lift11,700 lbs (5307 kg) or 15,650 lbs (7098 kg *)
Power Take-off (PTO)
Rear PTOIndependent
Rear RPM1000 (1.75) or 540/1000 (1.375 optional)
Serial Numbers
19951001
19966001
199710001
199820001
199924001
Electrical
GroundNegative
Charging SystemAlternator
Charging Amps140
Batteries2
Battery CCA925
Battery Volts12
Standard Tires (Agricultural):
Front14.9R34
Rear18.4R46
Dimensions
Wheelbase116.1 inches (294 cm)
Length206.5 inches (524 cm)
Height (Cab)120.2 inches (305 cm)
Clearance (Front Axle)23.2 inches (58 cm)
Rear AxleRack and pinion, 4.331 by 118.5 inches (110 by 3009 mm)
Front Tread60 to 88 inches (152 to 223 cm)
Weight
Shipping18,709 lbs (8,486 kg)
Operating19,190 lbs (8,704 kg)
Ballasted29,562 lbs (13,409 kg)
John Deere 8400 Overview

The John Deere 8400 is a prominent member of the 8000/8000T Series and is celebrated for its exceptional performance in the field of row-crop farming. Manufactured at John Deere’s esteemed facility in Waterloo, Iowa, USA, this tractor represents a combination of power, efficiency, and reliability. It has been a trusted choice among farmers and operators for its ability to handle a wide range of agricultural tasks with ease.

Key Features:

Powerful Engine: The heart of the 8400 is a turbocharged aftercooled diesel engine, featuring six cylinders and 12 valves. This liquid-cooled inline engine offers an impressive displacement of 496 cubic inches (8.1 liters) and a robust compression ratio of 15.1:1. With a rated RPM of 2200, it delivers the necessary power and torque for demanding farming operations.
Transmission Excellence: The John Deere PowerShift transmission with 16 forward and 4 reverse gears ensures smooth and efficient power transfer. The hydraulic wet disc clutch enhances reliability and control during gear shifts.
Mechanical Prowess: The tractor’s mechanical components are designed for durability and performance. It boasts a 4×4 MFWD (Four-Wheel Drive) system with inboard planetary final drives for optimal traction. The electro-hydraulic differential lock enhances stability, and the power steering ensures precise maneuverability.
Operator Comfort: The CommandView Cab, provided as standard, offers a comfortable and ergonomic workspace for operators. Additionally, the option for Row-Trak guidance further enhances precision in row-crop farming.

Advantages:

The John Deere 8400’s 225 horsepower PTO rating and robust engine make it capable of handling demanding row-crop tasks, such as planting, harvesting, and tillage.

The PowerShift transmission offers versatility and ease of use, ensuring operators can select the right gear for various applications.

The tractor’s four-wheel-drive capability and hydraulic components contribute to its adaptability in different field conditions.

Disadvantages:

While the 8400 is a powerful tractor, its fuel consumption can be relatively high, especially during heavy-duty operations, which may affect operational costs.

Due to its size and weight, maneuvering in confined spaces or smaller fields can be challenging.

Common Issues:

Common maintenance concerns for the John Deere 8400 include hydraulic system checks for leaks, particularly in older models. Additionally, sourcing replacement parts, especially for older tractors, can sometimes be challenging, depending on availability in specific markets.

In conclusion, the John Deere 8400 stands as a reliable and capable row-crop tractor with a legacy of performance. Its powerful engine, advanced transmission, and operator-focused features have made it a preferred choice for row-crop farmers seeking to optimize their agricultural operations.

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