John Deere 420

The John Deere 420 tractor is a versatile and reliable machine known for its performance and durability.

Overview:
The John Deere 420 is a compact utility tractor designed to handle a wide range of agricultural and landscaping tasks. It is part of the John Deere 400 Series, which includes several models known for their robust performance and quality construction.

Engine Options:
The tractor is available with two engine options, both of which provide ample power for various applications. These engines are known for their reliability and efficiency.

Transmission:
The John Deere 420 features a hydrostatic transmission with multiple speed ranges, allowing for precise control and ease of operation. The infinite number of speeds ensures smooth and efficient movement in both forward and reverse directions.

PTO and Attachments:
It comes equipped with a power take-off (PTO) system that allows for the attachment of various implements and accessories, such as mowers, blades, and more. The PTO is electrically controlled for convenience.

Steering and Brakes:
The tractor is equipped with hydrostatic power steering, providing responsive and effortless control. It also features rear-wheel brakes, which are individually controlled and designed for safety and reliability.

Hydraulic System:
The hydraulic system of the John Deere 420 is capable of handling three functions, including one with a float position. This versatility makes it suitable for tasks that require lifting and moving heavy loads.

Tires and Treads:
The tractor’s tire options provide stability and traction in various terrain conditions. Different tread widths are available to suit specific needs.

Attachments:
The John Deere 420 can be fitted with various attachments, such as mowers and blades, to enhance its versatility and utility in landscaping and agricultural tasks.

John Deere 420 is a compact yet powerful tractor designed for versatility and reliability. It’s well-suited for a range of tasks on farms, landscaping projects, and other applications where efficiency and performance are essential. This model’s durability and ease of operation make it a popular choice among those seeking a dependable workhorse in the field

John Deere 420 Engine Specifications
B48G Engine|
Engine ModelOnan B48G
Engine TypeGasoline
Horsepower (SAEJ607)14.9 kW (20 hp)
Engine Torque4.4 kgm (31.8 ft.lbs)
Fast Idle Engine Rated Speeds (No Load)3450 rpm
Engine Rated Speeds Low Idle (No Load)1350 rpm
Number of Cylinders2
Crankshaft AlignmentHorizontal
Stroke/Cycle4 Cycle
Bore82.55 mm (3.25 in.)
Stroke73 mm (2.875 in.)
Displacement782 cm3 (47.7 cu in.)
Compression Ratio7.0:1
CoolingAir
Air Filter TypeDry with Pre-Cleaner
Lubrication SystemFull Pressure w/Filter
Crankcase Capacity (w/o Filter)1.4 L (1.5 U.S. qt)
Oil FilterReplaceable
Spark PlugsNGK BPR5EFS / Champion RS14YC
Fuel Tank LocationRear
Fuel GaugeStd.
Fuel Reserve SystemStd.
Fuel (min. octane)85 Octane Unleaded
Fuel Pump LocationEngine
Fuel Pump TypePulse
Fuel DeliveryFixed Jet Carburetor
IgnitionElectronic
Type of Starter12 Volts, Solenoid
Charging System15 amp Stator
P220G Engine
Engine ModelOnan P220G
TypeGasoline
Horsepower (SAEJ607)14.9 kW (20 hp)
Engine Torque4.4 kgm (31.8 ft.lbs)
Fast Idle Engine Rated Speeds (No Load)3450 rpm
Engine Rated Speeds Low Idle (No Load)1350 rpm
Number of Cylinders2
Crankshaft AlignmentHorizontal
Stroke/Cycle4 Cycle
Bore82.55 mm (3.25 in.)
Stroke73 mm (2.875 in.)
Displacement782 cm3 (47.7 cu in.)
Compression Ratio7.0:1
Cylinder MaterialAluminum
Air Filter TypeDry with Pre-Cleaner
Lubrication SystemFull Pressure w/Filter
Crankcase Capacity (w/o Filter)1.4 L (1.5 U.S. qt)
Oil FilterReplaceable
Spark PlugsNGK BPR5EFS / Champion RS14YC
Fuel Tank LocationRear
Fuel GaugeStandard
Fuel Reserve SystemStandard
Fuel Tank Capacity25 L (6.5 U.S. gal)
Fuel (min. octane)85 Octane Unleaded
Fuel Pump LocationEngine
Fuel Pump TypePulse
Fuel DeliveryFixed Jet Carburetor
IgnitionElectronic
Type of Starter12 Volts, Solenoid
Charging System20 amp Stator
Battery TypeBCI Group 22F
Battery Voltage12V
Battery Reserve Capacity @ 25 amp102 minutes
Battery Cold Cranking amp @ 0F491 amp
HeadlightsStandard
Rear Reflector/Tail LightsStandard
Dash Indicator LightsStandard
Operator Presence SystemStandard
John Deere 420 Transmission
Transmission ModelSundstrand 90
Transmission TypeShaft-driven Hydrostatic, 2 Ranges
Number of SpeedsInfinite
Forward Speeds, High0-15.04 km/h (0-9.35 mph)
Forward Speeds, Low0-9.35 km/h (0-5.80 mph)
Reverse Speeds, High0-7.52 km/h (0-4.67 mph)
Reverse Speeds, Low0-4.66 km/h (0-2.90 mph)
Transmission Capacity w/Filter7.1 L (15 U.S. pt)
Transmission Oil CoolerStd.
Transmission Oil FilterStd.
Differential LockStd.
JD 420 Power Take-Off
Front PTOStandard
Rear PTOOptional
PTO TypeElectric Clutch
ControlElec. Switch on Dash
Front PTO, rpm (No Load)3450
Rear PTO, rpm (No Load)2000
Steering and Brakes
Steering TypeHydrostatic Power
Brakes LocationRear Wheels
Individually ControlledStd
Brakes TypeShoe and Drum
Return-to-Neutral BrakingStd
Parking BrakeYes
John Deere 420 Hydraulic System
Hydraulic System TypeThree-Function (One w/Float)
Hydraulic CouplersTwo Sets
Wheel Treads and Tires
Front Treads914 mm (36 in.)
Rear Treads (Narrow)818 mm (32 in.)
Rear Treads (Wide)980 mm (38.6 in.)
Standard Front Tires (Turf)18 x 8.50-8, 4 PR
Standard Rear Tires (Turf or Bar)26 x 12.00-12, 2 PR
Inflation Pressure (Front)41-152 kPa (6-22 psi)
Inflation Pressure (Rear)34-69 kPa (5-10 psi)
John Deere 420 Attachments
50″ Mower
Mower Deck TypeMid-mount
BladesThree with hydraulic lift
Cutting width50 inches (1270 mm)
BeltShaft-drive
Weight226 lbs (102 kg)
Overall width68 inches (1720 mm)
Cut height1.5 to 6 inches (30 to 150 mm)
60″ Mower
Mower Deck TypeMid-mount
BladesThree with hydraulic lift
Cutting width60 inches (1520 mm)
BeltShaft-drive
Weight367 lbs (166 kg)
Overall width72.5 inches (1840 mm)
Cut height2 to 7 inches (50 to 170 mm)
Blade
TypeFront-mount
Width54 inches (1370 mm)
Height18 inches (450 mm)
The John Deere 420 tractor is special and unique among tractors for several reasons:

Reliable Power: The John Deere 420 is equipped with robust and dependable engine options that provide ample power for various tasks. Its engines are known for their longevity and efficiency, ensuring that the tractor can handle demanding workloads.

Hydrostatic Transmission: One of its standout features is the hydrostatic transmission with multiple speed ranges. This allows for precise control and smooth operation, making it suitable for both novice and experienced operators.

Versatile PTO: The tractor’s power take-off (PTO) system is electrically controlled, providing easy engagement and disengagement of attachments. This versatility allows for the use of a wide range of implements, making it adaptable to various agricultural and landscaping needs.

Hydraulic System: With a three-function hydraulic system, including a float position, the John Deere 420 excels in tasks that require lifting, lowering, and manipulating heavy loads. This hydraulic capability sets it apart from tractors with less versatile systems.

Ease of Operation: The hydrostatic power steering ensures responsive and effortless control, reducing operator fatigue during long working hours. The individually controlled rear-wheel brakes enhance safety and maneuverability.

Attachment Compatibility: This tractor is designed to accept a variety of attachments, such as mowers and blades, which enhance its versatility and make it suitable for a wide range of applications.

Durable Construction: John Deere is known for its quality construction, and the 420 is no exception. Its durable build ensures longevity and minimizes maintenance requirements, adding to its overall value.

Tire Options: The availability of different tire options and tread widths allows users to select the most suitable configuration for specific terrain conditions, ensuring optimal traction and stability.

John Deere Heritage: As part of the John Deere family, the 420 tractor inherits the legacy of a respected and renowned agricultural equipment manufacturer. This brand association carries a reputation for quality and reliability.

Collector’s Item: Due to its unique features and historical significance, the John Deere 420 has become a collector’s item for enthusiasts and collectors of vintage tractors. Its classic design and enduring popularity make it a sought-after model.

John Deere 420 tractor is special and unique due to its combination of reliable power, hydrostatic transmission, versatile PTO, hydraulic system, ease of operation, attachment compatibility, durable construction, tire options, and the heritage of the John Deere brand. Its adaptability and performance have earned it a special place among tractors, making it a favorite choice for both practical use and historical appreciation.

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