Ford
7840
Horsepower
100hp
Production
1991–1995
Category
farm
Overview
Production
| Original Price | $35,650 (1996) |
|---|---|
| Engine | Ford 6.6L 6-cyl diesel |
| Tractor Type | Row-Crop |
| Series | PowerStar 40 Series |
| Manufacture Location | Basildon, England |
Mechanical
| Drive Type | 4x2 2WD |
|---|---|
| Steering | power |
| Brakes | mechanical (S), hydraulic wet disc (SL/SLE) |
| Rops Type | two-post foldable |
| Cab | optional with air-conditioning |
| Differential Lock | electro-hydraulic (SLE) |
| Final Drives | inboard planetary |
Hydraulics
| Hydraulic Type | open center |
|---|---|
| Hydraulic Valves | 4 |
| Hydraulic Pump Flow | 17.4 gpm (65.9 lpm) |
PTO & Hitch
| Rear Hitch Type | II |
|---|---|
| Rear Lift | 6,210 lbs (2,816 kg) |
| Hitch Control | Position control and top-link draft sensing. Electronic lower-link sensing optional on 7840 SLE. |
Fuel Capacity
| Fuel Capacity Rops | 57.5 gal (217.6 L) |
|---|
Other
| Variant 7840s | 8-speed economy |
|---|---|
| Variant 7840sl | 12-speed |
| Variant 7840sle | 16-speed premium |
| Rear Lift Sle | 6,564 lbs (2,977 kg) |
| Drive Type Optional | 4x4 MFWD 4WD |
| Steering Pressure | 2,100 psi (144.8 bar) |
| Rear Lift Optional | 8,240 lbs (3,737 kg) |
| Hydraulic Type Optional | closed center load sensing (SLE) |
| Rear Lift Sle Optional | 8,710 lbs (3,950 kg) |
| Hydraulic Pump Flow Optional | 20 gpm (SLE) gpm (75.7 lpm) |
Engine
| Engine | Ford Genesis |
|---|---|
| Fuel Type | diesel |
| Cylinders | 6-cylinder 12-valve |
| Cooling | liquid-cooled |
| Displacement | 401 ci (6.6 L) |
| Bore | 4.4 in (112 mm) |
| Bore Stroke | 4.40x4.40 in (112 x 112 mm) |
| Stroke | 4.4 in (112 mm) |
| Compression Ratio | 17.5 |
| Starter Volts | 12 |
| Oil Capacity | 22.1 qts (20.9 L) |
| Oil Capacity Qts Note | 22.7 qts (cab) 21.5 L |
| Coolant Capacity | 21.1 qts (20 L) |
| Firing Order | 1-5-3-6-2-4 |
| Intake Valve Clearance | 0.02 in (0.41 mm) |
| Exhaust Valve Clearance | 0.02 in (0.48 mm) |
| Idle | 725-2275 RPM |
| Rated | 2,100 RPM |
Dimensions
| Length | 176 in (447 cm) |
|---|---|
| Width | 83 in (210 cm) |
| Height Cab | 110 in (279 cm) |
| Height Hood | 70 in (177 cm) |
| Height Exhaust | 114 in (289 cm) |
| Wheelbase | 103 in (261 cm) |
| Clearance Front Axle | 22 in (55 cm) |
| Shipping Weight Cab 2WD | 9,215 lbs (4,179 kg) |
| Shipping Weight Cab 4WD | 10,274 lbs (4,660 kg) |
| Shipping Weight Rops 2WD | 8,076 lbs (3,663 kg) |
| Shipping Weight Rops 4WD | 9,134 lbs (4,143 kg) |
| Tires Ag Front | 10.00-16 |
| Tires Ag Rear | 18.4-34 |
Transmission
| Transmission Type | constant mesh |
|---|---|
| Transmission Model | EconoShift |
| Gears | 8 forward and 2 reverse |
| Gear Ranges | 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. |
| Clutch | dry disc |
| Oil Capacity | 69.6 qts (65.9 L) |
The eight-speed transmission was only used on the 7840S.
Available Attachments
Ford 7411 loaderFord 7413 loader
Test Results
| Test Reference | Nebraska Tractor Test 163 |
|---|---|
| Test Number | 163 |
| Test Date | September 1992 - 1992 |
| Fuel Type | Diesel |
| PTO Rated Power | 90.4 hp (67.4 kW) |
| Drawbar Max Power | 75.2 hp (56.1 kW) |
| Fuel Use Drawbar Max | 5.9 gal/hr (22.3 L/hr) |
| Transmission Type | 16-speed |
| Fuel Use Rated Engine | 5.3 gal/hr (20.1 L/hr) |