John Deere 1840

The John Deere 1840 is a classic tractor model known for its reliability and versatility in various agricultural applications. It has been a trusted workhorse on farms for many years, appreciated for its robust construction and efficient performance. Farmers have relied on the 1840 to handle a wide range of tasks, from plowing fields to transporting goods, making it a staple in the world of farming equipment. Its enduring popularity is a testament to its enduring quality and the essential role it has played in supporting agricultural operations.

JD 1840 Engine Technical Data
Engine ModelJohn Deere
Engine Type4 Cycle, 4-cylinder diesel
Number of Cylinders4
Displacement219.4 cu in (3.6 L)
Engine Bore4.02 inches (102.0 mm)
Engine Stroke4.33 inches (110.0 mm)
AspirationNatural
Compression16.2:1
Rated Engine Power68.0 hp (50.7 kW)
Rated Engine Speed2500 rpm
Low Idle Speed950 rpm
High Idle Speed2700 rpm
Firing Order1-3-4-2
Air CleanerDry type
Valve Clearance (Intake)0.014 inches (0.356 mm)
Valve Clearance (Exhaust)0.018 inches (0.457 mm)
Fuel Tank Capacity19.5 gal (74.0 L)
Oil Capacity6.0 qts (5.7 L)
Coolant Capacity12.0 qts (11.4 L)
Electrical System Rating12 Volts
Charging SystemAlternator
John Deere 1840 Power Take-Off
PTO Operational Type (Std)Live
PTO Operational Type (Opt)Independent
PTO Horsepower60.0 hp (45.0 kW)
PTO Speed540 rpm
PTO / Engine Speed540/2100 rpm
JD 1840 Transmission
Transmission Type (Std)8F/4R, Collar shift
Number of Forward Gears8
Number of Reverse Gears4
ClutchDry Disc
Maximum Speed (Forward)17.3 mph (27.8 kph)
Maximum Speed (Reverse)6.9 mph (11.1 kph)
Oil Capacity58.0 qts (55.0 L)
Transmission Type (Opt) 16F/8R, 2-Speed powershift
Number of Forward Gears16
Number of Reverse Gears8
ClutchDry Disc
Maximum Speed (Forward)17.3 mph (27.8 kph)
Maximum Speed (Reverse)6.9 mph (11.1 kph)
Service BrakeWet disc
John Deere 1840 Wheels and Tires
Drive Wheels2WD/4WD
Steering ConfigurationFront Steer
Steering SystemHydrostatic power
Front Tire Size6.00-16
Rear Tire Size16.9-28
Front Tread49-88 inches (1240-2230 mm)
Rear Tread50-96 inches (1270-2430 mm)
JD 1840 Hydraulics and Hitch
Hydraulic System TypeClosed center
Implement Pump Flow6.1 gpm (22.7 Lpm)
Hydraulic Pressure155 Bar (2550 psi)
Hydraulic Capacity10.0 gal (37.8 L)
Number of Standard Remote Valves1
3-Point Hitch Category2
Draft Sensing or Lift ControlPosition control and lower-link draft sensing
Standard Lift Capacity 24″ behind pin2400 lb (1090 kg)
John Deere 1840 Dimensions and Weight
Wheelbase (Std)85.8 inches (2170 mm)
Wheelbase (Opt)79.5 inches (2010 mm)
Length139.5 inches (3540 mm)
Height (Hood)61.3 inches (1550 mm)
Height (Exhaust)101.7 inches (2580 mm)
Width69.5 inches (1760 mm)
Ground Clearance25.4 inches (640 mm)
Weight4750 lb (2155 kg)
Advantages of the John Deere 1840 Tractor

Reliability: John Deere is known for manufacturing reliable and durable tractors, and the 1840 is no exception. It can withstand tough working conditions and is built to last.

Versatility: This tractor offers versatility with different transmission options (standard and optional powershift) and power take-off configurations, making it suitable for various farming tasks.

Fuel Efficiency: The tractor’s 4-cylinder diesel engine, with natural aspiration and efficient design, provides decent power while conserving fuel, which can lead to cost savings over time.

Hydraulic System: The closed-center hydraulic system and standard remote valves make it compatible with a range of implements and attachments, enhancing its productivity.

Compact Design: The 1840’s compact design, combined with good maneuverability, makes it suitable for smaller farms or operations with limited space.

Disadvantages of the John Deere 1840 Tractor:

Limited Features: Compared to modern tractors, the 1840 lacks some advanced features and technology, which could affect overall efficiency and ease of use.

Comfort: The tractor’s cabin and operator comfort features may not meet modern standards, potentially leading to operator fatigue during long working hours.

Maintenance: As an older model, finding replacement parts and qualified mechanics for maintenance and repairs might be more challenging and expensive.

Lack of Safety Features: The 1840 may lack modern safety features such as rollover protection systems (ROPS) and other safety enhancements, posing risks to the operator.

Lower Speed: Its maximum speed, while suitable for farming tasks, may be slower compared to newer tractors, which could affect efficiency in transport and field operations.

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