________________________________________________________________________________

New Holland 7840 Technical Data

NH 7840 Engine Specifications

Engine Model - Ford Genesis
Engine Type - Six-cylinder 12-valve turbocharged diesel
Engine Power Rated, hp (kw) - 100,0 (73,5)
Number of cylinders - 6
Bore, in (mm) - 4,4 (111,8)
Stroke, in (mm) - 4,4 (111,8)
Displacement, cu.in (L) - 401 (6,59)
Compression Ratio - 17.5:1
Firing order - 1-5-3-6-2-4
Idle speed, rpm - 725-775
Maximum no-load speed, rpm - 2195-2275
Rated speed, rpm - 2100
Tappet clearance (Intake), in (mm) - 0,014-0,018 (0,36-0,46)
Tappet clearance (Exhaust), in (mm) - 0,017-0,021 (0,43-0,53)
Coolant Pump Type - Impeller
Fan diameter, in (mm) - 20,1 (510)
Standard Fuel Tank Capacity, gal (L) - 47,9 (217,6)
Cooling System Capacity, qts (L) - 21,8 (20,0)
Engine Oil (including filter), qts (L) - 22,5 (20,9)
Electrical System, Volts - 12
Alternator Rating, Amps - 100/55
Regulator - Integral with alternator
Starting motor - Positive engagement, solenoid operated

New Holland 7840 Power Take Off

Standard PTO Type - 2 speed, non-shiftable, independent
Optional PTO - 2 speed, shiftable, independent
Engine speed for 540 PTO speed, rpm - 1900
Engine speed for 1000 PTO speed (Std, Non-shiftable), rpm - 2050
Engine speed for 1000 PTO speed (Opt, Non-shiftable), rpm - 2100

New Holland 7840 Transmission

Transmission Type (SL) - 12F/12R Standard
Max. Forward Speed, mph (kph) - 18,8 (30,0)
Transmission Type (SL) - 24F/24R Dual Power
Max. Forward Speed, mph (kph) - 25,1 (40,0)
Transmission Type (SLE) - 16F/16R Standard
Max. Forward Speed, mph (kph) - 18,8 (30,0)
Creeper Gears - Option
Reduction Ratio - 5.08:1
Transmission Oil Capacity (12F/12R), gal (L) - 12,5 (56,8)
Transmission Oil Capacity (16F/16R), gal (L) - 13,3 (60,6)

Wheels and Tires

Drive Wheels - 2WD/4WD
Steering Wheels - Front Steer
Steering - Hydrostatic
Front Tires - 14,9-28
Rear Tires - 18,4-38

New Holland 7840 Axles and Brakes

Front Wheel Toe-Out (2WD), in (mm) - 0-0,5 (0-13)
Front Wheel Toe-Out (4WD), in (mm) - 0-0,25 (0-6)
Rear Axle Capacity, qts (L) - 64,5 (60,6)
Front Hubs Capacity (FWD), qts (L) - 3,2 (3,0)
Front Axle Capacity (FWD), qts (L) - 6,7 (6,2)
Brakes Type - Wet disc, hydraulically actuated
Disc Diameter (overall), in (mm) - 8,8 (224)
Parking Brake - Transmission type

NH 7840 Hydraulic System

Hydraulic System Type (SL) - Open center
Hydraulic Pump Type - Standard
Flow at rated engine speed (Centre housing gear pump), gal/min (L/min) - 7,75 (35,2)
Flow at rated engine speed (Auxiliary engine-mounted gear pump), gal/min (L/min) - 6,8 (30,7)
Relief Valve Pressure, psi (bar) - 2650 (182)
Hydraulic System Type (SLE) - Closed Centre Load Sensing
Hydraulic Pump Type - Variable displacement piston pump with gear-driven charge pump
Minimum Delivery (Main pump), gal/min (L/min) - 16,7 (75,8)
Minimum Delivery (Charge pump), gal/min (L/min) - 20,0 (90,8)
Relief Valve Pressure, psi (bar) - 2800 (193)
Steering Pump Type - Fixed displacement gear pump
Steering flow at rated speed, gal/min (L/min) - 7,7 (34,8)
Maximum Steering Pressure, psi (bar) - 2100 (145)
Auxiliary Services Control Valve - Standard
Remote Control Valves - Up to four optional

3-Point Linkage

Rear Hitch Category - 2
Control (SL) - Position control and top-link draft sensing
Maximum lift capacity at link ends (with two assist rams) (SL), lb (kg) - 12300 (5580)
Maximum lift capacity at 24-in to rear of link ends (with two assist rams) (SL), lb (kg) - 9420 (4270)
Control (SLE) - Electronic Draft Control
Maximum lift capacity at link ends (with two assist rams) (SLE), lb (kg) - 13000 (5897)
Maximum lift capacity at 24-in to rear of link ends (with two assist rams) (SLE), lb (kg) - 9915 (4520)

New Holland 7840 Dimensions and Weight

Height to top of cab, in (mm) - 110,1 (2797)
Height to top of rollbar, in (mm) - 113,0 (2869)
Height to top of hood, in (mm) - 70,3 (1786)
Crop clearance under front axle (2WD), in (mm) - 24,5 (620)
Crop clearance under front axle (4WD), in (mm) - 22,8 (580)
Crop clearance under rear axle, in (mm) - 18,4 (468)
Minimum ground clearance (under drawbar), in (mm) - 18,0 (456)
Minimum width (with cab), in (mm) - 83,7 (2126)
Minimum width (less cab) (2WD), in (mm) - 83,2 (2112)
Maximum width (2WD), in (mm) - 103,5 (2630)
Maximum width (4WD), in (mm) - 101,6 (2581)
Overall length (2WD), in (mm) - 169,2 (4297)
Overall length (4WD), in (mm) - 171,7 (4361)
Wheelbase (2WD), in (mm) - 106,3 (2700)
Wheelbase (4WD), in (mm) - 103,3 (2623)
Minimum turning radius (without brakes) (2WD), in (mm) - 170,0 (4318)
Minimum turning radius (without brakes) (4WD), in (mm) - 174,0 (4420)
Weight 2WD (with cab), lb (kg) - 9215 (4180)
Weight 4WD (with cab), lb (kg) - 10274 (4660)
Weight 2WD (less cab), lb (kg) - 8077 (3663)
Weight 4WD (less cab), lb (kg) - 9135 (4143)

• see other models
  

________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________