Kubota L3940 Tractor

Manufacturer Kubota
Price 22,159(USD)
Model L3940
Equipment Type Compact Utility Tractors
Factory

ENGINE DETAIL

The Kubota L3940 tractor, powered by a 2.0L diesel 4-cylinder engine, delivers a robust 40.5 hp at 2700 RPM, making it suitable for a variety of agricultural applications. With an oil capacity of 8.7 quarts and a coolant capacity of 7.9 quarts, maintenance is manageable, though attention to fluid levels is crucial for optimum performance. Its bore and stroke dimensions (3.3x3.6 inches) suggest a balanced power-to-weight ratio, which can enhance maneuverability in tight spaces but may also limit heavy-duty pulling capacity in some scenarios.

Description Kubota diesel 4-cylinder liquid-cooled
Displacemen 122ci / 2.0L
Bore/Strok 3.3x3.6inches / 84x 91 mm
Power (gross 40.5hp / 30.2kW
Rated RP 2700
Starter volt 12
Oil capacit 8.7qts / 8.2L
Coolant capacit 7.9qts / 7.5L

KUBOTA L3940 ENGINE

The Kubota L3940 features a robust 2.0L 4-cylinder diesel engine, delivering efficient power generation and better fuel economy, ideal for various agricultural tasks. Its compact design facilitates maneuverability in tight spaces, while the hydrostatic transmission offers seamless speed control, enhancing operator comfort. However, limited horsepower may challenge heavy-duty applications; thus, it's best suited for medium-sized farms or light commercial use.

Description Kubota 2.0L 4-cyl diesel

TRANSMISSIONS OVERVIEW

The Kubota L3940 features a hydrostatic transmission, offering smooth speed control and ease of operation, making it ideal for tasks requiring constant speed adjustment, such as mowing or loader work. Its 8-speed or optional 12-speed transmission allows for better torque management and versatility while operating in various conditions. However, the hydrostatic system may have a reduced efficiency under heavy loads compared to gear-driven alternatives, leading to potential limitations in high-torque scenarios.

Description hydrostatic 8-speed 12-speed

TRANSMISSION 1

The Kubota L3940 features a hydrostatic transmission with infinite forward and reverse capabilities, ideal for precision control in varied terrains. The stall guard mechanism prevents engine stalling under load, while the auto throttle advance enhances efficiency by synchronizing engine RPM with the transmission speed. These features provide exceptional ease of operation, particularly in applications requiring frequent stopping and starting, but may present challenges in terms of maintenance complexity and potential higher repair costs compared to mechanical transmissions.

Transmissio HST Plus
Typ hydrostatic
Gear infinite forward and reverse (3-range)
Oil capacit 45.6qts / 43.2L
Description Controlled by treadle foot pedal, cruise control standard with left-hand lever. Three range with Hydro Dual Speed, a high/low power shift controlled by left-hand lever. Auto Hydro Dual speed allows automatic control to match load. Stall Guard maintains engine RPMs by reducing speed under load. HST Response Control adjusts acceleration rates. Auto Throttle Advance links engine RPMs to transmission, so that the throttle increases when speed is increased.

TRANSMISSION 2

The Kubota L3940 features a Full Synchro Transmission (FST) with 8 forward and reverse gears, allowing for smooth shifting and improved operability on varied terrain. Its dry disc clutch enhances durability but may require more maintenance compared to wet clutches. With an oil capacity of 45.2 quarts, ensure regular oil changes for optimal engine performance and longevity, especially in demanding agricultural scenarios.

Transmissio FST sync shuttle
Gear 8 forward and reverse
Clutc dry disc
Oil capacit 45.2qts / 42.8L

TRANSMISSION 3

The Kubota L3940 features a Glide Shift Transmission (GST), enabling smooth gear transitions between its 12 forward and 8 reverse speeds, which enhances operational efficiency and reduces operator fatigue. This system is advantageous for varied terrain and applications, providing precise control for both fieldwork and transport tasks. However, operators may face a learning curve to optimize gear selection for maximum performance under differing load conditions.

Transmissio Glide Shift (GST)
Gear 12 forward and 8 reverse

KUBOTA L3940 TRANSMISSIONS

The Kubota L3940 features a hydrostatic transmission, providing seamless speed control and ease of operation, particularly beneficial in applications requiring frequent direction changes. Its 8-speed/12-speed gear configuration allows for versatile power delivery, optimizing traction and performance across various terrains. However, users may find the hydrostatic system can lead to reduced efficiency on flat, open fields compared to gear-driven alternatives, potentially increasing fuel consumption.

Description hydrostatic 8-speed 12-speed

MECHANICAL

The Kubota L3940 tractor features a Hydrostatic Transmission with a Grand CAB, providing enhanced comfort and visibility for operators. Its four-wheel drive and wet disc brakes ensure superior traction and control, particularly in challenging terrains. The standard differential lock further enhances stability and grip, making it ideal for varied agricultural applications.

Description Four-wheel drive Wet disc brakes Two-post ROPS. Grand CAB on HSTC.
Differential loc standard
Steerin hydrostatic power steering

CAPACITY

Fue 13.2gal / 50.0L
Hydraulic syste 11.4gal / 43.1L
Front axl 6.9qts / 6.5L

HYDRAULICS

Typ open center
Capacit 11.4gal / 43.1L
Valve 2 to 3
Pump flo 9.8gpm / 37.1lpm
Total flo 14.7gpm / 55.6lpm
Steering flo 4.9gpm / 18.5lpm

TRACTOR HITCH

Rear Typ I
Rear lift (at ends 3,860lbs / 1750kg
Rear lift (at 24 2760lbs / 1251kg

POWER TAKE-OFF (PTO)

Rear PT independent
Rear RP 540
Engine RP 540@2550
Mid PT semi-independent (optional)
Mid RP 2000

KUBOTA L3940 TIRES

The Kubota L3940 offers versatility with various tire options, allowing for tailored performance across agricultural, turf, and industrial applications. Standard ag tires provide excellent traction in field work, while turf tires minimize ground disturbance, beneficial for landscaping tasks. However, choosing the wrong tire type may compromise performance; for example, industrial tires excel on hard surfaces but may not perform well in soft soil conditions.

Standard tires (ag Front: 8.3-16 . Rear: 14.9-24
Lawn/turf fron 29x12.50-15/27x8.50-15/27-10.50LLx15
Lawn/turf rea 44x18-20/355/80-D20/41-18LLx16.1
Industrial fron 10-16.5
Industrial rea 17.8L-24

DIMENSIONS & TIRES

The Kubota L3940 features a wheelbase of 74.6 inches, providing stability and maneuverability suitable for various agricultural tasks. With a weight range of 3,483 to 3,968 pounds, it offers good traction while maintaining a manageable size for smaller fields. The tire specifications (front: 8.3-16 and rear: 14.9-24) indicate enhanced grip and flotation, which can improve performance in diverse soil conditions, though tire selection should match the intended operational context for optimal efficiency.

Wheelbas 74.6inches / 189cm
Weigh 3483 to 3968 pounds
Front tir 8.3-16
Rear tir 14.9-24

ELECTRICAL

Groun negative
Charging amp 40/55 (cab)
Battery CC 582
Battery volt 12


Last Updated 2025-01-01
Stephen is a passionate tractor hobbyist with a deep-seated love for all things mechanized and agricultural. Growing up in a rural setting, he developed a fascination with these mighty machines that have played a crucial role in shaping the farming industry.

Comments

No comment yet