Equipment

Brands

New Holland 7840 Tractor (1998)

Manufacturer:

New Holland

Price:

35,650(USD)

Series:

PowerStar 40 Series

Model:

7840

Factory:

Basildon, England

Full Specifications

VARIANTS

7840S

8-speed economy

7840SL

12-speed

7840SLE

16-speed premium

NEBRASKA TRACTOR TEST 163

Description

Diesel 16-speed 4WD September 1992 - 1992, PTO performance Drawbar performance

Power at rated engine speed

90.4hp / 67.4kW

Fuel use

5.9gal/hour / 22.3l/hour

Max power

75.2hp / 56.1kW

NEW HOLLAND 7840 POWER

PTO (claimed)

90hp / 67.1kW

Drawbar (tested)

75.2hp / 56.1kW

PTO (tested)

90.4hp / 67.4kW

ENGINE DETAIL

Description

Ford Genesis diesel 6-cylinder 12-valve liquid-cooled

Displacement

401ci / 6.6L

Bore/Stroke

4.40x4.40inches / 112x 112mm

Compression

17.5:1

Rated RPM

2100

Idle RPM

725-2275

Firing order

1-5-3-6-2-4

Starter volts

12

Coolant capacity

21.1qts / 20.0L 22.7qts / 21.5L (cab)

Intake valve clearance

0.016inches / 0.406mm (cold)

Exhaust valve clearance

0.019inches / 0.483mm (cold)

ENGINE OIL

Oil capacity

22.1qts / 20.9L

NEW HOLLAND 7840 ENGINE

Description

Ford 6.6L 6-cyl diesel

Fuel tank

57.5gal / 217.6L

TRANSMISSIONS OVERVIEW

Description

8-speed constant mesh 16-speed two-speed power shift 12-speed synchronized 16-speed four-speed power shift

TRANSMISSION 1

Transmission

EconoShift

Type

constant mesh

Gears

8 forward and 2 reverse

Clutch

dry disc

Oil capacity

69.6qts / 65.9L

Description

Four gears (1-4), plus reverse, in two ranges (L/H). Optional creeper provided a third range. Tractor must be stopped and clutch used to shift gears or range. The eight-speed transmission was only used on the 7840S

SPEEDS 1

Description

With 16.9-34 rear tires

TRANSMISSION 2

Transmission

Dual Power

Type

two-speed power shift

Gears

16 forward and 4 reverse

Clutch

dry disc

Oil capacity

69.6qts / 65.9L

Description

Dual Power adds a two-speed power shift between direct drive and the lower Dual Power range to the basic eight-speed transmission. The Dual Power range is engaged by a switch on the dashboard. Dual Power was an option on the 7840S

SPEEDS 2

Description

With 16.9-34 rear tires

TRANSMISSION 3

Transmission

SynchroShift

Type

synchronized

Gears

12 forward and reverse

Clutch

dry disc

Description

Four gears (1-4) in three ranges (L/M/H) with right-hand shuttle lever. Gear shifts are synchronized. Shifts between medium and high ranges are synchronized, but the tractor should be stopped to shift to or from low range. Sychronized shuttle shifting. The 12-speed SynchroShift was standard on the 7840 SL. Dual power was an option with the SynchroShift, turning it into a 24-speed transmission

SPEEDS 3

Description

With 16.9-38 rear tires

TRANSMISSION 4

Transmission

ElectroShift/Pulse Command

Type

four-speed power shift

Gears

16 forward and reverse

Clutch

wet disc

Oil capacity

64qts / 60.6L

Description

Four power shift gears arranged in two synchronized ratio groups (1-4 and 5-8). Two synchronized ranges (low/high) and right-hand shuttle. Clutch must be used to shift range or move between the lower (1-4) and higher (5-8) gear ratio groups. Push-button power shifting between the four gears in a ratio group. Push-button de-clutching on the shuttle lever allow shifting without the foot clutch. The 16 power shift was standard on the 7840 SLE

SPEEDS 4

Description

With 16.9-38 rear tires

MECHANICAL

Chassis

4x2 2WD/4x4 MFWD 4WD (optional)

Final drives

inboard planetary

Differential lock

electro-hydraulic (SLE)

Steering

hydrostatic power

Brakes

mechanical (S)/hydraulic wet disc (SL/SLE)

Cab

Two-post foldable ROPS with flat-deck platform. Comfort Command Cab optional with air-conditioning (SL/SLE)

Transmissions

8-speed constant mesh 16-speed two-speed power shift 12-speed synchronized 16-speed four-speed power shift

HYDRAULICS

Type

open center (S/SL) closed center load sensing (SLE)

Valves

1 to 4

Pump flow

17.4gpm / 65.9lpm 20gpm / 75.7lpm (SLE)

Steering press.

2100psi / 144.8bar

TRACTOR HITCH

Rear Type

II

Control

Position control and top-link draft sensing. Electronic lower-link sensing optional on 7840 SLE

Rear lift (at 24

6,210lbs / 2816kg (SL) 8,240lbs / 3737kg (SL optional) 6,564lbs / 2977kg (SLE) 8,710lbs / 3950kg (SLE optional)

POWER TAKE-OFF (PTO)

Rear PTO

independent

Rear RPM

540/1000

NEW HOLLAND 7840 TIRES

Ag front

10.00-16

Ag rear

18.4-34

DIMENSIONS

2WD Wheelbase

106inches / 269cm

4WD Wheelbase

103inches / 261cm

Length

176inches / 447cm

Width

83inches / 210cm

2WD Clearance (front axle)

23inches / 58cm

4WD Clearance (front axle)

22inches / 55cm

NEW HOLLAND 7840 WEIGHT

2WD ROPS Shipping

8,076lbs / 3663kg

4WD ROPS Shipping

9,134lbs / 4143kg

2WD Cab Shipping

9,215lbs / 4179kg

4WD Cab Shipping

10,274lbs / 4660kg

NEW HOLLAND 7840 HEIGHT

Hood

70inches / 177cm

Cab

110inches / 279cm

Exhaust

114inches / 289cm

DIMENSIONS & TIRES

2WD Wheelbase

106inches / 269cm

4WD Wheelbase

103inches / 261cm

Weight

8076 to 10274 pounds

Front tire

10.00-16

Rear tire

18.4-34

FORD 7411 LOADER

Height (to pin)

134inches / 340cm

Clearance, dumped bucket

99inches / 251cm

Dump reach

48inches / 121cm

Breakout force (lift)

5265lbs / 2388kg

Lift to full height (at pin)

3050lbs / 1383kg

FORD 7413 LOADER

Height (to pin)

159inches / 403cm

Clearance, dumped bucket

125inches / 317cm

Dump reach

39inches / 99cm

Breakout force (lift)

6285lbs / 2850kg

Lift to full height (at pin)

3490lbs / 1583kg

7840 SERIAL NUMBERS

Location

Data plate inside hood

1991

BC68791

1992

BD02865

1993

BD35935

1994

BD65544

1995

BD98440

1996

022132B

ELECTRICAL

Ground

negative

Charging system

alternator

Charging amps

55 (ROPS)/100 (cab)

Batteries

1 (ROPS)/2 (cab)

Battery CCA

800

Battery volts

12
The New Holland 7840 tractor is part of the company's PowerStar 40 Series. The 7840 is a Row-Crop Tractors type, that is used mostly in Agriculture Tractors. The engine of the 7840 tractors is impressive. This setup is more practical in the real world.