John Deere 840, 940, 1040, 1140 ⚙️ Specs

Technical Specifications of the John Deere 840 Agricultural Tractor:

The John Deere 840 Agricultural Tractor was produced from 1980 to 1986. It features a three-cylinder engine, model 3179, with a displacement of 2940 cm³. It delivers a maximum output of 35 HP at 2400 rpm and a torque of 135 Nm at 1300 rpm. The drivetrain includes 8 synchronized forward and 4 reverse gears, allowing for travel speeds ranging from 2.0 to 23.5 km/h, with a maximum speed of 25 km/h. The hydraulic pump has a flow rate of 23 L/min, and the mechanically controlled rear lift has a maximum lifting capacity of 2215 kg. The PTO operates at 540 rpm. The 2WD version weighs 2270 kg, while the 4WD version weighs 3160 kg, with a turning radius of 6.2 m for 2WD and 9 m for 4WD. The tractor’s dimensions include a length of 351 cm, a width of 189 cm, and a height of 239 cm with a cab. The tire sizes are 6.50-16 in the front and 12.4-28 in the rear for the 2WD version, and 9.50-24 in the front and 12.4-36 in the rear for the 4WD version. The fuel tank capacity is 78 liters, and the noise level inside the cabin is 90 dB.

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Technical Data Sheet for John Deere 840, 940, 1040, 1140 tractors:

Model John Deere 840 John Deere 940 John Deere 1040 John Deere 1140
Years of production 80-86 80-86 80-81 80-81
Engine designation/type 3179 3179 3179DL01 3179DL01
Number of cylinders / Turbo / Intercooler 3 3 3 3
Engine displacement (cm³) 2940 2940 2940 2940
Piston diameter / Stroke (mm) 106,5×110 106,5×110 106,5×110 106,5×110
Maximum engine power (HP) / at RPM 35/2400 44/2400 50/2500 56/2500
Torque (Nm) / at RPM 135/1300 154/1300 172/1400 185/1400
Number of gearbox speeds (forward + reverse) 8+4 8+4 8+4/16+8 8+4/16+8
Number of synchronized gears (forward + reverse) 8+4 8+4 >8+4/16+8 >8+4/16+8

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Fast gearbox / Power shift
Reverser type
Speed range (km/h) 2,0-23,5 2,0-23,5 3,4-31,5 3,4-31,5
Maximum speed (km/h) 25 25
Hydraulic pump capacity (L/min) 23 23 47 47
Rear three-point hitch (TUV) control type mech mech mech mech
Maximum rear three-point hitch (TUV) lift capacity (kg) 2215 2215 2350 2350
Power take-off (PTO) speed (RPM) 540 540 540 540
Type of disc brake (dry/wet)
Brake system control type
Turning radius 2WD (m) 6,2 6,2 6,6 6,6
Turning radius 4WD (m) 9 9 8,2 8,2

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Front tire size 2WD 6,50-16 6,50-16 7,50-16 7,50-16
Front tire size 4WD 9,50-24 11,2-24 9,50-24 11,2-24
Rear tire size 2WD 12,4-28 12,4-32 12,4-36 13,6-36
Rear tire size 4WD 12,4-36 13,6-36 12,4-36 13,6-36
Total weight 2WD (kg) 2270 2270 2890 2940
Total weight 4WD (kg) 3160 3210 3160 3070
Total height with cabin (cm) 239 239 244 245
Total length (cm) 351 351 351/364 351/364
Total width (cm) 189 189 205 205/206
Fuel tank capacity (L) 78 78 78 78
Cabin noise level (dB) 90 84,5 84,5 84,5

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