.png)
Equipment
Brands
New Holland 7840 Tractor (1998)
Manufacturer:
New HollandPrice:
35,650(USD)Series:
PowerStar 40 SeriesModel:
7840Factory:
Basildon, EnglandFull Specifications
VARIANTS
7840S
8-speed economy7840SL
12-speed7840SLE
16-speed premiumNEBRASKA TRACTOR TEST 163
Description
Diesel 16-speed 4WD September 1992 - 1992, PTO performance Drawbar performancePower at rated engine speed
90.4hp / 67.4kWFuel use
5.9gal/hour / 22.3l/hourMax power
75.2hp / 56.1kWNEW HOLLAND 7840 POWER
PTO (claimed)
90hp / 67.1kWDrawbar (tested)
75.2hp / 56.1kWPTO (tested)
90.4hp / 67.4kWENGINE DETAIL
Description
Ford Genesis diesel 6-cylinder 12-valve liquid-cooledDisplacement
401ci / 6.6LBore/Stroke
4.40x4.40inches / 112x 112mmCompression
17.5:1Rated RPM
2100Idle RPM
725-2275Firing order
1-5-3-6-2-4Starter volts
12Coolant 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 / 20.9LNEW HOLLAND 7840 ENGINE
Description
Ford 6.6L 6-cyl dieselFuel tank
57.5gal / 217.6LTRANSMISSIONS OVERVIEW
Description
8-speed constant mesh 16-speed two-speed power shift 12-speed synchronized 16-speed four-speed power shiftTRANSMISSION 1
Transmission
EconoShiftType
constant meshGears
8 forward and 2 reverseClutch
dry discOil capacity
69.6qts / 65.9LDescription
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 7840SSPEEDS 1
Description
With 16.9-34 rear tiresTRANSMISSION 2
Transmission
Dual PowerType
two-speed power shiftGears
16 forward and 4 reverseClutch
dry discOil capacity
69.6qts / 65.9LDescription
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 7840SSPEEDS 2
Description
With 16.9-34 rear tiresTRANSMISSION 3
Transmission
SynchroShiftType
synchronizedGears
12 forward and reverseClutch
dry discDescription
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 transmissionSPEEDS 3
Description
With 16.9-38 rear tiresTRANSMISSION 4
Transmission
ElectroShift/Pulse CommandType
four-speed power shiftGears
16 forward and reverseClutch
wet discOil capacity
64qts / 60.6LDescription
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 SLESPEEDS 4
Description
With 16.9-38 rear tiresMECHANICAL
Chassis
4x2 2WD/4x4 MFWD 4WD (optional)Final drives
inboard planetaryDifferential lock
electro-hydraulic (SLE)Steering
hydrostatic powerBrakes
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 shiftHYDRAULICS
Type
open center (S/SL) closed center load sensing (SLE)Valves
1 to 4Pump flow
17.4gpm / 65.9lpm 20gpm / 75.7lpm (SLE)Steering press.
2100psi / 144.8barTRACTOR HITCH
Rear Type
IIControl
Position control and top-link draft sensing. Electronic lower-link sensing optional on 7840 SLERear 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
independentRear RPM
540/1000NEW HOLLAND 7840 TIRES
Ag front
10.00-16Ag rear
18.4-34DIMENSIONS
2WD Wheelbase
106inches / 269cm4WD Wheelbase
103inches / 261cmLength
176inches / 447cmWidth
83inches / 210cm2WD Clearance (front axle)
23inches / 58cm4WD Clearance (front axle)
22inches / 55cmNEW HOLLAND 7840 WEIGHT
2WD ROPS Shipping
8,076lbs / 3663kg4WD ROPS Shipping
9,134lbs / 4143kg2WD Cab Shipping
9,215lbs / 4179kg4WD Cab Shipping
10,274lbs / 4660kgNEW HOLLAND 7840 HEIGHT
Hood
70inches / 177cmCab
110inches / 279cmExhaust
114inches / 289cmDIMENSIONS & TIRES
2WD Wheelbase
106inches / 269cm4WD Wheelbase
103inches / 261cmWeight
8076 to 10274 poundsFront tire
10.00-16Rear tire
18.4-34FORD 7411 LOADER
Height (to pin)
134inches / 340cmClearance, dumped bucket
99inches / 251cmDump reach
48inches / 121cmBreakout force (lift)
5265lbs / 2388kgLift to full height (at pin)
3050lbs / 1383kgFORD 7413 LOADER
Height (to pin)
159inches / 403cmClearance, dumped bucket
125inches / 317cmDump reach
39inches / 99cmBreakout force (lift)
6285lbs / 2850kgLift to full height (at pin)
3490lbs / 1583kg7840 SERIAL NUMBERS
Location
Data plate inside hood1991
BC687911992
BD028651993
BD359351994
BD655441995
BD984401996
022132BELECTRICAL
Ground
negativeCharging system
alternatorCharging amps
55 (ROPS)/100 (cab)Batteries
1 (ROPS)/2 (cab)Battery CCA
800Battery 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.