John Deere 1840 Utility Tractors Specifications

Engine

The engine is a John Deere diesel 4-cylinder liquid-cooled with a displacement of 239ci / 3.9L and a bore/stroke of 4.19x4.33inches / 106x 110mm. It has a compression ratio of 16.8:1 and is rated at 70hp / 52.2kW. The engine has a torque of 170lb-ft / 230.5Nm at 1300rpm. The starter volts are 12 and the intake valve clearance is 0.014inches / 0.356mm while the exhaust valve clearance is 0.018inches / 0.457mm.

Transmission

The transmission is an 8-speed unsynchronized gear 8-speed partially synchronized 16-speed two-speed power shift. The engine (net) is rated at 70hp / 52.2kW while the PTO (claimed) is rated at 60hp / 44.7kW. The transmission is designed to provide smooth shifting and efficient power transfer. It is suitable for a wide range of applications, from light-duty work to heavy-duty tasks. The transmission is easy to operate and maintain, making it a popular choice among tractor owners.

Brakes

The brakes are wet disc type. The tractor is equipped with mechanical rear differential lock. The engine is a John Deere diesel 4-cylinder liquid-cooled with a displacement of 239ci / 3.9L and a bore/stroke of 4.19x4.33inches / 106x 110mm. It has a compression ratio of 16.8:1 and is rated at 70hp / 52.2kW. The engine has a torque of 170lb-ft / 230.5Nm at 1300rpm. The starter volts are 12 and the intake valve clearance is 0.014inches / 0.356mm while the exhaust valve clearance is 0.018inches / 0.457mm. The brakes are reliable and provide excellent stopping power.

Steering

The steering is power-assisted. The tractor is equipped with a John Deere 3.9L 4-cylinder diesel engine. The fuel tank has a capacity of 25.1gal / 95.0L. The steering is responsive and easy to operate, making it ideal for a wide range of applications. The power-assisted steering system provides excellent control and maneuverability, even in tight spaces. The tractor is also equipped with a comfortable operator station, which helps reduce operator fatigue during long work hours.

Common Problems

Some common problems reported by users of the John Deere 1840 tractor include issues with the transmission, such as difficulty shifting gears or slipping gears. Another common issue is with the hydraulic system, which may experience leaks or other malfunctions. Some users have also reported problems with the brakes, such as reduced stopping power or excessive wear. Additionally, some users have reported issues with the engine, such as overheating or poor performance. Finally, some users have reported problems with the electrical system, such as issues with the battery or alternator.

What Users Like

Users of the John Deere 1840 tractor appreciate its versatility and reliability. The tractor is suitable for a wide range of applications, from light-duty work to heavy-duty tasks. Users also appreciate the comfortable operator station, which helps reduce operator fatigue during long work hours. The tractor is easy to operate and maintain, making it a popular choice among tractor owners. Finally, users appreciate the power and performance of the engine, which provides excellent torque and horsepower for a wide range of tasks.

Techincal Specifications

Power
Engine (net)	70hp / 52.2kW
Pto (claimed)	60hp / 44.7kW
Engine Detail
Description	John Deere diesel 4-cylinder liquid-cooled
Displacement	239ci / 3.9L
Bore/stroke	4.19x4.33inches / 106x 110mm
Compression	16.8:1
Rated Rpm	2500
Idle Rpm	800-2660
Operating Rpm	1300-2500
Torque	170lb-ft / 230.5Nm
Torque Rpm	1300
Firing Order	1-3-4-2
Starter Volts	12
Intake Valve Clearance	0.014inches / 0.356mm
Exhaust Valve Clearance	0.018inches / 0.457mm
Engine
Description	John Deere 3.9L 4-cyl diesel
Fuel Tank	25.1gal / 95.0L
Mechanical
Chassis	4x2 2WD/4x4 MFWD 4WD
Final Drives	planetary
Differential Lock	mechanical rear
Steering	power
Brakes	wet disc
Cab	Open operator station. Cab optional
Transmissions	8-speed unsynchronized gear 8-speed partially synchronized 16-speed two-speed power shift
Tires
Ag Front	7.50-16
Ag Rear	16.9-30
Dimensions
Wheelbase	89.7inches / 227cm
Length	147inches / 373cm
Height (hood)	62inches / 157cm
Weight	5476lbs / 2483kg
Dimensions And Tires
Wheelbase	89.7inches / 227cm
Weight	5476lbs / 2483kg
Front Tire	7.50-16
Rear Tire	15.5-38
Hydraulics
Type	closed center
Tractor Hitch
Rear Type	II/I
Control	position and draft control
Electrical
Ground	negative
Charging System	alternator
Charging Amps	33/55*Standard with cab, optional on open station
Charging Volts	14
Batteries	2
Battery Volts	12
Speeds
Description	With 15.5-38 rear tires
Power Take Off Pto
Rear Pto	independent
Rear Rpm	540 (1.375) / 540/1000 (1.375)