7840 by Ford
1991 - 1995
Production
Variants
Ford 7840 Power
67.1 kW
56.1 kW
67.4 kW
1991 - 1995
| 1991 - 1995 |
| PowerStar 40 Series |
| Row-Crop tractor |
Nebraska Tractor Test 163
| Nebraska Tractor Test 163 | |
| Diesel 16-speed 4WD September 1992 - 1992, | |
| PTO performance | |
| Power at rated engine speed: | 90.4 hp 67.4 kW |
| Fuel use: | 5.3 gal/hour 20.1 l/hour |
| Drawbar performance | |
| Max power: | 75.2 hp 56.1 kW |
| Fuel use: | 5.9 gal/hour 22.3 l/hour |
Ford 7840 Engine
217.6 L
1991 - 1995
| 1991 - 1995 |
| PowerStar 40 Series |
| Row-Crop tractor |
Engine Detail
| Engine Detail | |
| Ford Genesis | |
| diesel | |
| 6-cylinder 12-valve | |
| liquid-cooled | |
| Displacement: | 401 ci 6.6 L |
| Bore/Stroke: | 4.40x4.40 inches 112 x 112 mm |
| Compression: | 17.5:1 |
| Rated RPM: | 2100 |
| Idle RPM: | 725-2275 |
| Firing order: | 1-5-3-6-2-4 |
| Starter volts: | 12 |
| Coolant capacity: | 21.1 qts 20.0 L |
| 22.7 qts 21.5 L (cab) | |
| Intake valve clearance: | 0.016 inches 0.406 mm (cold) |
| Exhaust valve clearance: | 0.019 inches 0.483 mm (cold) |
Engine Oil
| Engine Oil | |
| Oil capacity: | 22.1 qts 20.9 L |
Mechanical
1991 - 1995
| 1991 - 1995 |
| PowerStar 40 Series |
| Row-Crop tractor |
Transmissions overview
| Transmissions overview | |
| 8-speed constant mesh | |
| 16-speed two-speed power shift | |
| 12-speed synchronized | |
| 16-speed four-speed power shift |
Transmission
| Transmission | |
| Transmission: | EconoShift |
| Type: | constant mesh |
| Gears: | 8 forward and 2 reverse |
| Clutch: | dry disc |
| Oil capacity: | 69.6 qts 65.9 L |
| 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
| Speeds | |
| With 16.9-34 rear tires. | |
Transmission
| Transmission | |
| Transmission: | Dual Power |
| Type: | two-speed power shift |
| Gears: | 16 forward and 4 reverse |
| Clutch: | dry disc |
| Oil capacity: | 69.6 qts 65.9 L |
| 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
| Speeds | |
| With 16.9-34 rear tires. | |
Transmission
| Transmission | |
| Transmission: | SynchroShift |
| Type: | synchronized |
| Gears: | 12 forward and reverse |
| Clutch: | dry disc |
| 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
| Speeds | |
| With 16.9-38 rear tires. | |
Transmission
| Transmission | |
| Transmission: | ElectroShift/Pulse Command |
| Type: | four-speed power shift |
| Gears: | 16 forward and reverse |
| Clutch: | wet disc |
| Oil capacity: | 64 qts 60.6 L |
| 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
| Speeds | |
| With 16.9-38 rear tires. | |
Hydraulics
65.9 lpm
75.7 lpm (SLE)
144.8 bar
Tractor hitch
2816 kg (SL)
3737 kg (SL optional)
2977 kg (SLE)
3950 kg (SLE optional)
Power Take-off (PTO)
Dimensions & Tires
269 cm
261 cm
1991 - 1995
| 1991 - 1995 |
| PowerStar 40 Series |
| Row-Crop tractor |
Ford 7840 Tires
| Ford 7840 Tires | |
| Ag front: | 10.00-16 |
| Ag rear: | 18.4-34 |
Dimensions
| Dimensions | |
| 2WD Wheelbase: | 106 inches 269 cm |
| 4WD Wheelbase: | 103 inches 261 cm |
| Length: | 176 inches 447 cm |
| Width: | 83 inches 210 cm |
| 2WD Clearance (front axle): | 23 inches 58 cm |
| 4WD Clearance (front axle): | 22 inches 55 cm |
Ford 7840 Weight
| Ford 7840 Weight | |
| 2WD ROPS Shipping: | 8,076 lbs 3663 kg |
| 4WD ROPS Shipping: | 9,134 lbs 4143 kg |
| 2WD Cab Shipping: | 9,215 lbs 4179 kg |
| 4WD Cab Shipping: | 10,274 lbs 4660 kg |
Ford 7840 Height
| Ford 7840 Height | |
| Hood: | 70 inches 177 cm |
| Cab: | 110 inches 279 cm |
| Exhaust: | 114 inches 289 cm |
Ford 7840 attachments
1991 - 1995
| 1991 - 1995 |
| PowerStar 40 Series |
| Row-Crop tractor |
Ford 7411 Loader
| Ford 7411 Loader | |
| Height (to pin): | 134 inches 340 cm |
| Clearance, dumped bucket: | 99 inches 251 cm |
| Dump reach: | 48 inches 121 cm |
| Breakout force (lift): | 5265 lbs 2388 kg |
| Lift to full height (at pin): | 3050 lbs 1383 kg |
Ford 7413 Loader
| Ford 7413 Loader | |
| Height (to pin): | 159 inches 403 cm |
| Clearance, dumped bucket: | 125 inches 317 cm |
| Dump reach: | 39 inches 99 cm |
| Breakout force (lift): | 6285 lbs 2850 kg |
| Lift to full height (at pin): | 3490 lbs 1583 kg |
7840 Serial Numbers
how to read serial numbers...
Electrical
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