New Holland 7840

New Holland 7840The New Holland 7840 is a 2WD/4WD row-crop tractor from the PowerStar 40 series. This tractor was manufactured by New Holland in Basildon, England from 1996 to 1998. The New Holland 7840 is equipped with a 6.6 L (401.8 cu·in) six-cylinder diesel engine and one of four transmission variants.

The NH 7840 row-crop tractor used the Ford Genesis engine. It is a 6.6 L, 6,585 cm2, (401.8 cu·in) six-cylinder natural aspirated diesel engine with 112.0 mm (4.41 in) of the cylinder bore and 112.0 mm (4.41 in) of the piston stroke. The compression ratio rating is 17.5:1. This engine produced 91.3 PS (67.1 kW; 90.0 HP) of PTO output power.

The New Holland 7840 is equipped with hydrostatic power steering, mechanical (S) or hydraulic wet disc (SL/SLE) brakes, two-post foldable ROPS with flat-deck platform or Comfort Command Cab and 217.6 liters (57.5 US gal.; 47.9 Imp. gal) fuel tank.

The New Holland 7840 variants:

  • 7840S: EconoShift 8-speed transmission, economy version
  • 7840SL: SynchroShift 12-speed transmission
  • 7840SLE: ElectroShift/Pulse Command 16-speed transmission, Premium version

New Holland 7840 Specifications

General Specifications
ModelNew Holland 7840
Length4,470 mm (176 in)
Width2,100 mm (82.7 in)
Height (cab)2,790 mm (109.8 in)
Wheel base 2WD: 2,690 mm (105.9 in)
4WD: 2,610 mm (102.8 in)
Ground clearance (front axle) 2WD: 580 mm (22.8 in)
4WD: 550 mm (21.7 in)
Weight (shipping) 2WD ROPS: 3,665 kg (8,080 lbs)
4WD ROPS: 4,145 kg (9,140 lbs)
2WD Cab: 4,180 kg (9,215 lbs)
4WD Cab: 4,660 kg (10,275 lbs)
Fuel tank capacity217.6 liters (57.5 US gal.; 47.9 Imp. gal)
BatteryOne 12V (ROPS) or two 12V (Cab), CCA 800A
Cabin typeTwo-post foldable ROPS with flat-deck platform or Comfort Command Cab (optional for SL/SLE)
Engine
Engine modelFord Genesis
Engine typeFour-stroke, liquid-cooled, inline
Cylinders6
Fuel typeDiesel
Displacement6.6 L, 6,585 cm2, (401.8 cu·in)
Bore and stroke112.0 mm X 112.0 mm (4.41 in X 4.41 in)
Compression ratio17.5:1
Horsepower91.3 PS (67.1 kW; 90.0 HP)
StarterElectric
Oil capacity:20.9 L (22.1 US. qt, 18.4 Imp. qt.)
Coolant capacity:20.0 L (21.1 US. qt, 17.6 Imp. qt.)
Transmission and chassis
Chassis4×2 2WD or 4×4 MFWD 4WD (optional)
Steering typeHydrostatic power
BrakesMechanical (S), hydraulic wet disc (SL/SLE)
Final driveInboard planetary
Differential lockElectro-hydraulic (SLE)
Transmission modelEconoShift
Transmission typeConstant mesh with dry disc clutch
Gears8 forward and 2 reverse
Speed Forward: 30.3 kmh (18.8 mph) Reverse: 14.6 kmh (9.1 mph)
Transmission oil capacity65.9 L (17.4 US. gal, 14.5 Imp. gal.)
Transmission modelDual Power
Transmission typeTwo-speed power shift with dry disc clutch
Gears16 forward and 4 reverse
Speed Forward: 30.3 kmh (18.8 mph) Reverse: 14.6 kmh (9.1 mph)
Transmission modelSynchroShift
Transmission typeSynchronized with dry disc clutch
Gears12 forward and 12 reverse
Speed Forward: 30.9 kmh (19.2 mph)
Transmission modelElectroShift/Pulse Command
Transmission typeFour-speed power shift with wet disc clutch
Gears16 forward and 16 reverse
SpeedForward: 30.7 kmh (19.1 mph)
Transmission oil capacity60.6 L (16 US. gal, 13.3 Imp. gal.)
Tires
Front tires Ag: 10.00-16
Rear tires Ag: 18.4-34
Three-Point Hitch
CategoryII
Control type Position control and top-link draft sensing
7840 SLE (optional): Electronic lower-link sensing
Lift capacity (at 610 mm/24 in) SL: 2,816 kg (6,210 lbs)
SL (optional): 3,737 kg (8,240 lbs)
SLE: 2,977 kg (6,564 lbs)
SLE (optional): 3,950 kg (8,710 lbs)
PTO (Power take-off shaft)
Rear PTO typeIndependent
Rear PTO speed540/1000 rpm
Hydraulic system
Hydraulic typeOpen center (S/SL) or closed center load sensing (SLE)
Valves1 to 4
Pump flow 17.4 gpm (65.9 lpm)
SLE: 20.0 gpm (75.7 lpm)
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We try to use verified sources and official documentation, however, differences between sources or errors in entering information may occur. In addition, the characteristics may vary depending on the modification and market. We do not provide advice on technical issues related to the any operation or repair. We do not recommend using provided information for repairing or spare parts ordering, use only official service manuals and spare-parts catalogs.

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